CN215951575U

CN215951575U - Heat exchange system

Info

Publication number: CN215951575U
Application number: CN202121930007.5U
Authority: CN
Inventors: 邱步; 柳飞
Original assignee: AO Smith China Water Heater Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd
Priority date: 2021-08-17
Filing date: 2021-08-17
Publication date: 2022-03-04
Anticipated expiration: 2031-08-17
Also published as: CN215951575U9

Abstract

The utility model discloses a heat exchange system, which comprises: the heat exchange device is provided with a first heat exchange tail end and a second heat exchange tail end; a first heat source; a second heat source; the first heat source and the second heat source are connected with the first heat exchange tail end and/or the second heat exchange tail end through pipelines; the flow control device at least has a first state and a second state, when the flow control device is in the first state, the first heat source and the second heat source are communicated with the first heat exchange tail end or the first heat source and the second heat source are communicated with the second heat exchange tail end, and when the flow control device is in the second state, the first heat source and the second heat source are respectively communicated with the first heat exchange tail end and the second heat exchange tail end. The utility model can adjust the indoor temperature and humidity and ensure that the user has comfortable body feeling.

Description

Heat exchange system

Technical Field

The utility model relates to the technical field of heat exchange systems, in particular to a heat exchange system.

Background

At present, when a heat exchange system is adopted in the market for heating/refrigerating, an air disc is generally utilized at the tail end of heat exchange for air outlet. The heat exchange system provided with the air disc utilizes the air disc to output air so as to perform refrigeration/heating/dehumidification, and the following problems can occur: at present, the indoor temperature and humidity are hardly adjusted in the dehumidification operation process.

For example, when cooling and dehumidifying, the indoor humidity and temperature after dehumidification are reduced at the same time, and although the humidity satisfies the setting requirement of the user, the user feels the dryness and coldness along with the reduction of the indoor temperature, and the user experience is not good.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, embodiments of the present invention provide a heat exchange system, which can adjust both indoor temperature and humidity, i.e., can reliably meet the temperature requirement of a user while adjusting humidity, and ensure that the user has comfortable body feeling.

The specific technical scheme of the embodiment of the utility model comprises the following steps:

a heat exchange system comprising: the heat exchange device is provided with a first heat exchange tail end and a second heat exchange tail end; a first heat source; a second heat source; the first heat source and the second heat source are connected with the first heat exchange tail end and/or the second heat exchange tail end through pipelines; the flow control device at least has a first state and a second state, when the flow control device is in the first state, the first heat source and the second heat source are communicated with the first heat exchange tail end or the first heat source and the second heat source are communicated with the second heat exchange tail end, and when the flow control device is in the second state, the first heat source and the second heat source are respectively communicated with the first heat exchange tail end and the second heat exchange tail end.

Further, the first heat source is provided with a first water outlet and a first water return port, the first heat exchange tail end is provided with a first inlet and a first outlet, and a first water outlet pipe is arranged between the first water outlet and the first inlet; a first water return pipe is arranged between the first water return port and the first outlet; the second heat source is provided with a second water outlet and a second water return port, the second heat exchange tail end is provided with a second inlet and a second outlet, a second water outlet pipe is arranged between the second water outlet and the second inlet, and a second water return pipe is arranged between the second outlet and the second water return port.

Further, the second outlet pipe with be connected with first connecting pipe between the first outlet pipe, the second wet return with be connected with the second connecting pipe between the first outlet pipe, the second connecting pipe with the second wet return is connected in first hookup location, first connecting pipe with the second outlet pipe is connected in second hookup location, flow control device set up in first hookup location, perhaps, flow control device set up respectively in the second connecting pipe, be located pipeline between first hookup location and the second export, perhaps, flow control device set up in second hookup location, perhaps, flow control device set up respectively in first connecting pipe, be located pipeline between the second hookup location and the second entry.

Further, the second outlet pipe with be provided with first connecting pipe between the first return pipe, the second return pipe with be provided with the second connecting pipe between the first return pipe, the second connecting pipe with the second return pipe is connected in first hookup location, first connecting pipe with the second outlet pipe is connected in second hookup location, flow control device set up in first hookup location, perhaps, flow control device set up respectively in the second connecting pipe, be located pipeline between first hookup location and the second export, perhaps, flow control device set up in second hookup location, perhaps, flow control device set up respectively in first connecting pipe, be located pipeline between the second hookup location and the second entry.

Further, the second outlet pipe with be provided with first connecting pipe between the first outlet pipe, the second wet return with be provided with the second connecting pipe between the first wet return, the second connecting pipe with the second wet return is connected in first hookup location, first connecting pipe with the second outlet pipe is connected in second hookup location, flow control device set up in first hookup location, perhaps, flow control device set up respectively in the second connecting pipe, be located pipeline between first hookup location and the second export, perhaps, flow control device set up in second hookup location, perhaps, flow control device set up respectively in first connecting pipe, be located pipeline between the second hookup location and the second entry.

Furthermore, the second outlet is communicated with the first outlet, and the first water return pipe and the second water return pipe are shared.

Furthermore, the first heat exchange end and the second heat exchange end are integrated in the same heat exchange device, and the heat exchange device is provided with a fan.

Further, the first heat exchange end is located downstream of the second heat exchange end in a flow direction of the airflow generated by the fan.

Further, the heat exchange area of the first heat exchange end is larger than that of the second heat exchange end.

Further, the heat exchange device comprises any one or a combination of the following components: double heat exchange end, double heat exchange end fresh air processor.

Further, the first heat source and the second heat source may include any one of: air conditioner, heat pump, gas combustion device, electric heater unit.

Further, the flow control device comprises a three-way valve and/or an electromagnetic switching valve and/or a two-way valve.

Further, the heat exchange system further comprises a temperature detection piece and/or a humidity detection piece which are used for communicating with the controller.

Further, the heat exchange system further comprises a controller, and the flow control device is in communication with the controller.

The technical scheme of the utility model has the following remarkable beneficial effects:

according to the heat exchange system, the communication state of the pipeline is changed through the change of the state of the flow control device, the switching of the communication relation between the heat source and the heat exchange tail end is realized, and when the heat exchange system is used, the indoor temperature and humidity can be adjusted, for example, the temperature requirement of a user is met preferentially and quickly, and then dehumidification is carried out; or the dehumidification is preferentially carried out on the premise that the temperature is kept stable, and then the temperature is adjusted, so that the user is guaranteed to have comfortable body feeling.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the utility model may be employed. It should be understood that the embodiments of the utility model are not so limited in scope. The embodiments of the utility model include many variations, modifications and equivalents within the spirit and scope of the appended claims. Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the utility model as a matter of case.

Fig. 1 is a schematic structural diagram of a first heat exchange system provided in an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a second heat exchange system provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a third heat exchange system provided in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a fourth heat exchange system provided in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a fifth heat exchange system provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a heat exchange device provided in an embodiment of the present application;

fig. 7 is a front view of the heat exchange device of fig. 6.

Reference numerals of the above figures:

1. a first heat source; 11. a first water outlet; 12. a first water return port; 13. a first water outlet pipe; 14. a first water return pipe;

2. a second heat source; 21. a second water outlet; 22. a second water return port; 23. a second water outlet pipe; 24. a second water return pipe;

31. a three-way valve; 32. a first electromagnetic switching valve; 33. a second electromagnetic switching valve; 34. a first two-way valve; 35. a second two-way valve;

4. a heat exchange device; 41. a first heat exchange end; 411. a first inlet; 412. a first outlet; 42. a second heat exchange end; 421. a second inlet; 422. a second outlet;

51. a first connecting pipe; 52. a second connecting pipe; A. a first connection location; B. a second connection location.

Detailed Description

The technical solutions of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments, it should be understood that these embodiments are merely illustrative of the present invention and are not intended to limit the scope of the present invention, and various equivalent modifications of the present invention by those skilled in the art after reading the present invention fall within the scope of the appended claims.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 5 in combination, a heat exchange system is provided in the present specification, which may include: a heat exchange device 4 provided with a first heat exchange end 41 and a second heat exchange end 42; a first heat source 1; a second heat source 2; the first heat source 1 and the second heat source 2 are connected with the first heat exchange end 41 and/or the second heat exchange end 42 through pipelines; the flow control device at least has a first state and a second state, when the flow control device is in the first state, the first heat source 1 and the second heat source 2 are both communicated with the first heat exchange end 41 or the first heat source 1 and the second heat source 2 are both communicated with the second heat exchange end 42, and when the flow control device is in the second state, the first heat source 1 and the second heat source 2 are respectively communicated with the first heat exchange end 41 and the second heat exchange end 42.

In the present specification, the first heat source 1 may be a device capable of cooling, may be a device capable of heating, or may be a device capable of both cooling and heating. Specifically, the first heat source 1 may be in the form of a heat pump, an air conditioner, or other heat exchange devices, such as a gas combustion device, an electric heating device, and the like. In the present description, the first heat source 1 is mainly illustrated as a heat pump, and other forms can be analogized to and referred to, and the present application will not be described one by one.

The second heat source 2 may be a device capable of heating, a device capable of cooling, or a device capable of both cooling and heating. Specifically, the second heat source 2 may be a gas combustion device, an electric heating device, a heat pump water heater, or an air conditioner, but of course, the second heat source 2 may also be other heating devices capable of heating, such as other new energy heating devices. When the second heat source 2 is a gas combustion device, it may be in the form of a wall-hanging stove, a gas water heater, or the like. When the second heat source 2 is an electric heating device, it may be an electric water heater. In this specification, the second heat source 2 is mainly illustrated by a wall-hanging stove, and other forms can be referred to by analogy, and the description of the present application is not repeated.

The first heat source 1 and the second heat source 2 may be connected to a heat exchanger 4 through a pipe. The heat exchange means 4 is used to transfer heat from the fluid to the air. The heat exchanger 4 may be in the form of a wind disk, but may be in other forms, and the application is not limited in this respect. In the present description, the heat exchange means 4 are mainly illustrated in the form of a wind disk.

In this specification, the heat exchange device 4 may include: a first heat exchange end 41 and a second heat exchange end 42. Wherein said first heat exchange end 41 and said second heat exchange end 42 may be integrated in one and the same heat exchange means 4. When the first heat exchange end 41 and the second heat exchange end 42 are integrated in the same heat exchange device 4, the heat exchange device 4 may be any of the following: double heat exchange end, double heat exchange end fresh air processor.

In this specification, the first heat source 1 and the second heat source 2 may each include a plurality of operation modes depending on their specific forms. For example, the first heat source 1 has stored therein a plurality of patterns including: heating state, cooling state, dehumidification mode, defrosting mode, etc.; the second heat source 2 may also have stored therein a plurality of modes including: heating state, dehumidification mode, but also cooling state, defrost mode, etc.

In addition, the heat exchange system may further include a temperature sensing member and/or a humidity sensing member for communicating with the controller. The temperature detecting piece is utilized to obtain the real-time temperature of the indoor environment, the controller communicated with the temperature detecting piece can receive the temperature signal detected by the temperature detecting piece, and the temperature signal is utilized to determine the temperature of the current indoor environment. Utilize this humidity to detect the piece, can acquire the real-time humidity of indoor environment, the controller with this humidity detection piece communication can receive the humidity signal that this humidity detection piece detected, utilizes the humidity signal to confirm the humidity of current indoor environment.

Of course, the controller may also obtain the temperature and humidity information in other manners. For example, the controller may communicate with a network and receive temperature and humidity information transmitted by the network to determine the temperature and humidity of the current indoor environment. Of course, the manner of obtaining the temperature and humidity of the indoor environment is not limited to the above example, and those skilled in the art may also implement the method in other manners, which is not illustrated herein.

In one embodiment, the first heat source 1 is provided with a first water outlet 11 and a first water return 12, the first heat exchange end 41 is provided with a first inlet 411 and a first outlet 412, and a first water outlet pipe 13 is arranged between the first water outlet 11 and the first inlet 411; a first return pipe 14 is arranged between the first return port 12 and the first outlet 412; the second heat source 2 is provided with a second water outlet 21 and a second water return port 22, the second heat exchange end 42 is provided with a second inlet 421 and a second outlet 422, a second water outlet pipe 23 is arranged between the second water outlet 21 and the second inlet 421, and a second water return pipe 24 is arranged between the second outlet 422 and the second water return port 22.

In this embodiment, the first heat source 1 and the second heat source 2 may be connected to the first heat exchange end 41 and the second heat exchange end 42, respectively, that is, the first heat source 1 is combined with the first heat exchange end 41, and the second heat source 2 is combined with the second heat exchange end 42 to perform independent control, so as to implement independent refrigeration; heating independently; or, cooling and heating simultaneously; or one refrigeration, one refrigeration. In addition, the first heat source 1 and the second heat source 2 can be connected in series or in parallel through a connecting pipeline. Specifically, the second heat source 2 may be connected in series to the first water outlet pipe 13 of the first heat source 1, or may be connected in series to the first water return pipe 14 of the first heat source 1, or may be in parallel relationship with the first heat source 1.

In this specification, the heat exchange system may further include a flow control device. The flow control device is used for controlling the flow in the pipelines, and can control the communication relation among the pipelines and change the flow direction of fluid in the pipelines by controlling the flow in the pipelines so as to ensure that the heat source and the heat exchange tail end can be connected to form different combination modes.

Wherein the flow control means may comprise a three-way valve 31 and/or a solenoid switched valve and/or a two-way valve. The flow control device may be any one of the three-way valve 31, the electromagnetic switching valve, the two-way valve, or a combination of two or more of them. Of course, the flow control device may be in other forms that enable control of the flow in the line.

As shown in fig. 1, in the first specific embodiment, a first connection pipe 51 is connected between the second water outlet pipe 23 and the first water outlet pipe 13, and a second connection pipe 52 is connected between the second water return pipe 24 and the first water outlet pipe 13. The second connection pipe 52 and the second water return pipe 24 are connected to a first connection position a, and the first connection pipe 51 and the second water outlet pipe 23 are connected to a second connection position B.

As shown in fig. 1, the flow control device may be disposed at the first connection position a; alternatively, as shown in fig. 2, the flow control devices may be respectively disposed at the second connection pipe 52, a pipeline between the first connection position a and the second outlet 422; alternatively, as shown in fig. 5, the flow control device may be disposed at the second connection position B; alternatively, as shown in fig. 2, the flow control devices may be respectively disposed at the first connection pipe 51, a pipe between the second connection position B and the second inlet 421.

As shown in fig. 1, in the present embodiment, when the second heat source 2 is connected in series to the first return pipe 14 of the second heat source 2 through the first connection pipe 51 and the second connection pipe 52, the second connection pipe 52 and the second return pipe 24 are connected to the first connection position a, and the first connection pipe 51 and the second return pipe 23 are connected to the second connection position B.

In particular, the flow control device may be arranged at different positions in the pipeline, depending on its particular form. For example, when the flow control device is in the form of a three-way valve 31, it may be positioned at a junction of two lines, such as a first junction A (shown in FIG. 1) or a second junction B (shown in FIG. 5).

When the flow rate control means is an electromagnetic switching valve or a two-way valve, as shown in fig. 3, the flow rate control means may include a first electromagnetic switching valve 32 and a second electromagnetic switching valve 33. Wherein the second electromagnetic switching valve 33 may be disposed on the second connection pipe 52, and the first electromagnetic switching valve 32 may be disposed on a pipeline between the first connection position a and the second outlet 422. It should be noted that, if the electromagnetic switching valve is already disposed on the pipeline where the electromagnetic switching valve is located, the electromagnetic switching valve in the original pipeline may be utilized without being additionally disposed.

Alternatively, as shown in fig. 2, the flow control means may include a first two-way valve 34 and a second two-way valve 35. Wherein a first two-way valve 34 may be arranged in the line between the first connection pipe 51 and the second two-way valve 35 may be located between the second connection position B and the second inlet 421.

As shown in fig. 2, in the second embodiment, a first connection pipe 51 is disposed between the second water outlet pipe 23 and the first water return pipe 14, and a second connection pipe 52 is disposed between the second water return pipe 24 and the first water return pipe 14. The second connection pipe 52 and the second water return pipe 24 are connected to a first connection position a, and the first connection pipe 51 and the second water outlet pipe 23 are connected to a second connection position B. The flow control device is disposed at the first connection position a, or the flow control device is disposed at the second connection pipe 52, a pipeline between the first connection position a and the second outlet 422, or the flow control device is disposed at the second connection position B, or the flow control device is disposed at the first connection pipe 51, a pipeline between the second connection position B and the second inlet 421.

In this embodiment, the main differences with respect to the first embodiment are: the first connection pipe 51 and the second connection pipe 52 are connected at different positions. The second heat source 2 is connected in series to the first return pipe 14 of the second heat source 2 via a first connection pipe 51 and a second connection pipe 52.

In this embodiment, when the second heat source 2 is connected in series to the first return pipe 14 of the second heat source 2 through the first connection pipe 51 and the second connection pipe 52, the flow rate control means may be provided at a plurality of positions on the pipe. The above-mentioned positions and combinations thereof can be referred to the first embodiment, and the description thereof is not repeated here.

As shown in fig. 3, in the third specific embodiment, a first connection pipe 51 is disposed between the second water outlet pipe 23 and the first water outlet pipe 13, and a second connection pipe 52 is disposed between the second water return pipe 24 and the first water return pipe 14. The second connection pipe 52 and the second water return pipe 24 are connected to a first connection position a, and the first connection pipe 51 and the second water outlet pipe 23 are connected to a second connection position B. The flow control device is disposed at the first connection position a, or the flow control device is disposed at the second connection pipe 52, a pipeline between the first connection position a and the second outlet 422, or the flow control device is disposed at the second connection position B, or the flow control device is disposed at the first connection pipe 51, a pipeline between the second connection position B and the second inlet 421.

In this embodiment, the main differences with respect to the first embodiment are: the first connection pipe 51 and the second connection pipe 52 are connected at different positions. The second heat source 2 is connected in parallel to the first water outlet pipe 13 and the first water return pipe 14 of the second heat source 2 through the first connecting pipe 51 and the second connecting pipe 52.

In this embodiment, when the second heat source 2 is connected in parallel to the first water outlet pipe 13 and the first water return pipe 14 of the second heat source 2 through the first connection pipe 51 and the second connection pipe 52, the flow rate control device may be provided at a plurality of positions on the pipeline. The above-mentioned positions and combinations thereof can be referred to the first embodiment, and the description thereof is not repeated here.

In one embodiment, the flow control device is in communication with the controller, the flow control device includes a first state and a second state, the first heat source 1 and the second heat source 2 are in communication with the first heat exchanging end 41 when the flow control device is in the first state, and the first heat source 1 and the second heat source 2 are in communication with the first heat exchanging end 41 and the second heat exchanging end 42, respectively, when the flow control device is in the second state.

In the present embodiment, when the flow rate control device in the heat exchange system is switched to different states, the communication relationship between the first heat source 1 and the second heat source 2 and the first heat exchange end 41 and the second heat exchange end 42 can be changed.

Taking fig. 1 as an example, when the flow control device is in the form of a three-way valve 31, the first state specifically means that a is communicated with b, and a is not communicated with c, and at this time, the first heat source 1 and the second heat source 2 are both communicated with the first heat exchange end 41, and a heating medium can be simultaneously provided to the first heat exchange end 41. For example, when the first heat source 1 is a heat pump, the outlet water temperature is a first outlet water temperature; the second heat source 2 is a wall-mounted furnace, the water outlet temperature of the wall-mounted furnace is a second water outlet temperature, and the second water outlet temperature is greater than the first water outlet temperature. The first heat source 1 and the second heat source 2 may both be in a heating state. When this flow control device is in first state, the play water of this second heat source 2 can mix with the play water of first heat source 1 mutually to can utilize the higher second play water temperature of temperature to promote the temperature of first play water temperature, provide the higher heating temperature of the terminal 41 of first heat transfer, thereby guarantee that this heat transfer system has faster heating rate, can guarantee that the temperature of indoor environment is promoted by high efficiency promptly.

The second state specifically means that a is not communicated with b, and a is communicated with c. The first heat source 1 communicates with a first heat exchange end 41 and the second heat source 2 communicates with a second heat exchange end 42. Wherein, this first heat source 1 can be in the refrigeration state, and this second heat source 2 can be in the state of heating to realize "constant temperature" dehumidification, guarantee to satisfy when the temperature of indoor environment predetermines the temperature condition, but when humidity still unsatisfied predetermined humidity condition, can guarantee that the temperature reliably maintains under the prerequisite about the predetermined temperature value, dehumidify, the comfort level that the user body felt must be guaranteed to the preferred.

The working states of the first heat source 1 and the second heat source 2 and the communication relation between the first heat exchange end 41 and the second heat exchange end 42 are not limited to the above examples, and the present application will not be described herein.

In this specification, the control logic of the controller in the heat exchange system is exemplified as follows.

First the controller may store or temporarily receive a preset target temperature and a preset target humidity. When the currently acquired temperature and humidity of the indoor environment are received, the temperature can be judged first.

And when the difference value between the acquired temperature and the preset target temperature is greater than a first preset difference value, the temperature of the current indoor environment is high, and refrigeration and cooling are needed. At this time, the first heat exchange end 41 and the second heat exchange end 42 may be connected by the first heat source 1 to perform cooling.

As shown in fig. 3, when the first heat source 1 communicates the first heat exchange end 41 and the second heat exchange end 42, the second heat source 2 is in a shutdown state. A part of the fluid flowing out of the first water outlet pipe 13 enters the first inlet 411, exchanges heat with the first heat exchange terminal 41, flows through the first water return pipe 14 through the first outlet 412 and flows back to the first heat source 1; another part of the fluid flowing from the first water outlet pipe 13 firstly enters the second water outlet pipe 23 through the first connecting pipe 51 and then enters the second inlet 421; after exchanging heat with the second heat exchanging end 42, the heat-exchanged water flows from the second outlet 422 through the second water returning pipe 24, the second connecting pipe 52 and the first water returning pipe 14 to the first heat source 1. In the process, the second heat source 2 is in a shutdown state, and the first electromagnetic switching valve 32 and the second electromagnetic switching valve 33 may be in a communication state.

When the difference between the preset target temperature and the obtained temperature is larger than a first preset difference, the temperature of the current indoor environment is low, and heating and temperature rising are needed. In this case, heating can be performed by connecting the first heat exchange end 41 to the first heat source 1 and the second heat exchange end 42 to the second heat source 2. In addition, from the viewpoint of energy efficiency improvement, the first heat exchange end 41 and the second heat exchange end 42 may be connected to each other by the first heat source 1 having high energy efficiency to perform heating.

In addition, the judgment of the humidity may be performed after the temperature judgment is finished, or after the temperature of the indoor environment satisfies a preset temperature condition. Of course, the humidity may be determined at the same time as the temperature is determined, and the specific determination sequence is not limited in this application.

When the difference between the humidity and the preset target humidity is larger than the preset humidity difference, it indicates that the humidity of the current indoor environment is high, and dehumidification is required. At this time, the first heat source 1 may be controlled to be in a cooling state, and a cooling medium may be supplied to the first heat exchange end 41; the second heat source 2 is in a heating state, and a heating medium is provided at the second heat exchange end 42, so that constant-temperature dehumidification is realized.

In addition, for the working conditions of first refrigeration and then further dehumidification, the first heat source 1 can be used to connect the first heat exchange terminal 41 and the second heat exchange terminal 42 for refrigeration and dehumidification, so that the humidity meets the preset humidity condition, and the temperature may be lower than the preset target temperature, for example, the difference between the preset temperature and the current temperature is greater than 2 ℃. At this time, the second heat source 2 may be simultaneously turned on, the first heat source 1 is connected to the first heat exchange end 41, the second heat source 2 is connected to the second heat exchange end 42, and the second heat source 2 is used to supplement heat to the indoor environment. In this process, a step of temperature judgment may be performed. If the current temperature is close to the preset target temperature, for example, the difference between the preset target temperature and the current temperature is within 1 °, the capacity of the second heat source 2 (wall-hanging stove) may be reduced or the machine may be stopped, and the first heat source 1 continues to cool until the humidity meets the preset humidity condition.

On the whole, by using the heat exchange system provided by the specification, the working states of the first heat source 1 and the second heat source 2 and the communication state with the pipeline can be flexibly controlled, and the individual requirements of different users on refrigeration, heating, dehumidification and the like can be met. Specifically, during refrigeration, a heat source can be communicated with one heat exchange tail end to perform single heat exchange tail end refrigeration; a heat source can be used for communicating the two heat exchange tail ends to perform double-heat exchange tail end simultaneous refrigeration; in addition, when two heat sources all possess the refrigeration ability, it can utilize two heat sources to communicate a heat transfer terminal respectively and carry out two heat transfer terminal of heat source and refrigerate simultaneously, further promotes refrigeration speed.

When heating, a heat source can be communicated with one heat exchange tail end to carry out single heat exchange tail end refrigeration; or one heat source can be used for communicating the two heat exchange tail ends to simultaneously heat the double heat exchange tail ends; in addition, when two heat sources all possess the ability of heating, it can utilize two heat sources intercommunication a heat transfer end, perhaps communicates a heat transfer end respectively and carries out two heat source double heat transfer end and heat simultaneously, further promotes refrigeration speed.

When dehumidification is carried out, a heating heat source is communicated with a heat exchange tail end, and a refrigerating heat source is communicated with a heat exchange tail end, so that constant-temperature dehumidification is carried out.

In the fourth embodiment, as shown in FIG. 4, the second outlet 422 is connected to the first outlet 412, and the first return pipe 14 and the second return pipe 24 are partially shared.

In the present embodiment, the first water return pipe 14 and the second water return pipe 24 are partially shared in order to simplify piping and reduce installation complexity. The second outlet 422 of the heat exchanging device 4 is communicated with the first outlet 412, that is, the return liquid flowing out from the second outlet 422 and the first outlet 412 is converged by using the same return pipe, then enters the return pipe of the common part, and finally returns to the first heat source 1 and the second heat source 2 respectively.

In one embodiment, the first heat exchange end 41 and the second heat exchange end 42 are integrated in one and the same heat exchange device 4, and the heat exchange device 4 is provided with one fan.

In this embodiment, the two heat exchange terminals may be integrally disposed in the same heat exchange device 4, and the same fan is used to guide air to the two heat exchange terminals, so as to achieve "constant temperature" dehumidification. When the heat exchange system is in a constant temperature dehumidification process, the first heat source 1 in a cooling state supplies a cooling medium (for example, cold water) to the first heat exchange end 41, and the second heat source 2 in a heating state supplies a heating medium (for example, hot water) to the second heat exchange end 42. After the air flow generated by the fan passes through the cooling medium and the heating medium, the temperature of the air flow can be kept relatively stable, so that constant-temperature dehumidification is realized. It should be noted that the constant temperature is not absolutely constant, and the operation of the constant temperature fluctuates within a certain range, so that the temperature fluctuation is guaranteed to be within an acceptable range for the user's body feeling in principle.

For different rooms under the same heat exchange system, users may have different cooling and heating requirements. When the heat exchanging device 4 is provided with the first heat exchanging end 41 and the second heat exchanging end 42, the cooling and heating of each room can be independently controlled. For example, for a user in a first room who has a cooling demand, the first heat exchange end 41 may be controlled to output air; for a user in a second room who has a cooling demand, the second heat exchange end 42 can be controlled to discharge air.

Further, the first heat exchange end 41 is located upstream of the second heat exchange end 42 in the flow direction of the air flow generated by the fan.

In the present embodiment, two heat exchange ends are disposed in an upstream-downstream relationship in the flow direction of the air flow generated by the fan. For example, a first heat exchange end 41 in communication with a source of cooling heat may be located upstream of a second heat exchange end 42 in communication with a source of heating heat. The air flow generated from the fan side flows through the first heat exchange end 41 to be cooled and then flows through the second heat exchange end 42 to be heated, so that the constant temperature dehumidification is realized.

When the first heat exchange terminal 41 is communicated with the first heat source 1 to serve as a cooling terminal, and the second heat exchange terminal 42 is communicated with the second heat source 2 to serve as a heating terminal, since the cooling load is greater than the heating load during dehumidification, the heat exchange area of the first heat exchange terminal 41 is greater than that of the second heat exchange terminal 42 to match the load.

Specifically, the heat exchange device 4 may include any one or a combination of the following: double heat exchange end, double heat exchange end fresh air processor.

Referring to fig. 6 and fig. 7, the double heat exchanging end may specifically include a first heat exchanging end 41 and a second heat exchanging end 42, wherein the first heat exchanging end 41 with a larger heat exchanging area may be provided with 3 rows of heat exchanging coils, and the second heat exchanging end 42 with a smaller heat exchanging area may be provided with 1 row of heat exchanging coils. Of course, the number of coils in the first heat exchange end 41 and the second heat exchange end 42 is not limited to the above examples, and can be adapted to the actual load requirements.

Specifically, the first heat exchange end 41 is provided with a first inlet 411 and a first outlet 412, and is communicated with the first heat source 1 through a pipeline; the second heat exchanging end 42 is provided with a second inlet 421 and a second outlet 422, and is communicated with the second heat source 2 through a pipeline. When constant temperature dehumidification is carried out, air firstly passes through three rows of heat exchange coil pipes for refrigeration and dehumidification, and then is heated through the row of heat exchange coil pipes on the outermost side to maintain constant temperature.

On the whole, the heat exchange system provided by the application changes the communication state of the pipeline through the change of the state of the flow control device, so that the switching of the communication relation between the heat source and the heat exchange tail end is realized, and the indoor temperature and humidity can be adjusted during use, for example, the requirement of a user on the temperature is preferentially and quickly met, and then dehumidification is carried out; or the dehumidification is preferentially carried out on the premise that the temperature is kept stable, and then the temperature is adjusted, so that the user is guaranteed to have comfortable body feeling.

It should be noted that, in the description of the present application, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is intended or should be construed to indicate or imply relative importance. In addition, in the description of the present application, "a plurality" means two or more unless otherwise specified.

The above embodiments in the present specification are all described in a progressive manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment is described with emphasis on being different from other embodiments.

The above embodiments are only a few embodiments of the present invention, and the embodiments of the present invention are described above, but the present invention is only used for the understanding of the present invention, and is not limited to the embodiments. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A heat exchange system, comprising:

the heat exchange device is provided with a first heat exchange tail end and a second heat exchange tail end;

a first heat source;

a second heat source;

the first heat source and the second heat source are connected with the first heat exchange tail end and/or the second heat exchange tail end through pipelines;

the flow control device at least has a first state and a second state, when the flow control device is in the first state, the first heat source and the second heat source are communicated with the first heat exchange tail end or the first heat source and the second heat source are communicated with the second heat exchange tail end, and when the flow control device is in the second state, the first heat source and the second heat source are respectively communicated with the first heat exchange tail end and the second heat exchange tail end.

2. The heat exchange system of claim 1, wherein the first heat source is provided with a first water outlet and a first water return, the first heat exchange end is provided with a first inlet and a first outlet, and a first water outlet pipe is arranged between the first water outlet and the first inlet; a first water return pipe is arranged between the first water return port and the first outlet;

the second heat source is provided with a second water outlet and a second water return port, the second heat exchange tail end is provided with a second inlet and a second outlet, a second water outlet pipe is arranged between the second water outlet and the second inlet, and a second water return pipe is arranged between the second outlet and the second water return port.

3. The heat exchange system of claim 2, wherein a first connecting pipe is connected between the second water outlet pipe and the first water outlet pipe, a second connecting pipe is connected between the second water return pipe and the first water outlet pipe, the second connecting pipe and the second water return pipe are connected to a first connecting position, the first connecting pipe and the second water outlet pipe are connected to a second connecting position, the flow control device is arranged at the first connecting position, or the flow control devices are respectively arranged on the second connecting pipe and a pipeline between the first connecting position and the second outlet, or the flow control device is arranged at the second connecting position, or the flow control device is respectively arranged on the first connecting pipe and a pipeline between the second connecting position and the second inlet.

4. The heat exchange system of claim 2, wherein a first connecting pipe is disposed between the second water outlet pipe and the first water return pipe, a second connecting pipe is arranged between the second water return pipe and the first water return pipe, the second connecting pipe and the second water return pipe are connected with a first connecting position, the first connecting pipe and the second water outlet pipe are connected to a second connecting position, the flow control device is arranged at the first connecting position, or the flow control devices are respectively arranged on the second connecting pipe and a pipeline between the first connecting position and the second outlet, or the flow control device is arranged at the second connecting position, or the flow control device is respectively arranged on the first connecting pipe and a pipeline between the second connecting position and the second inlet.

5. The heat exchange system of claim 2, wherein a first connecting pipe is arranged between the second water outlet pipe and the first water outlet pipe, a second connecting pipe is arranged between the second water return pipe and the first water return pipe, the second connecting pipe and the second water return pipe are connected with a first connecting position, the first connecting pipe and the second water outlet pipe are connected to a second connecting position, the flow control device is arranged at the first connecting position, or the flow control devices are respectively arranged on the second connecting pipe and a pipeline between the first connecting position and the second outlet, or the flow control device is arranged at the second connecting position, or the flow control device is respectively arranged on the first connecting pipe and a pipeline between the second connecting position and the second inlet.

6. The heat exchange system of any one of claims 2 to 5, wherein the second outlet is in communication with the first outlet, and the first return conduit and the second return conduit share a common portion.

7. The heat exchange system of any one of claims 1 to 5, wherein the first heat exchange end and the second heat exchange end are integrated in the same heat exchange device, and the heat exchange device is provided with a fan.

8. The heat exchange system of claim 7, wherein the first heat exchange end is downstream of the second heat exchange end in a direction of flow of the air flow generated by the fan.

9. The heat exchange system of claim 8, wherein the heat exchange area of the first heat exchange end is greater than the heat exchange area of the second heat exchange end.

10. The heat exchange system of any one of claims 1 to 5, wherein the heat exchange device comprises any one or a combination of the following: double heat exchange end, double heat exchange end fresh air processor.

11. The heat exchange system of any one of claims 1 to 5, wherein the first heat source and the second heat source comprise any one of: air conditioner, heat pump, gas combustion device, electric heater unit.

12. A heat exchange system according to claim 6 wherein the flow control means comprises a three-way valve and/or a solenoid switched valve and/or a two-way valve.

13. A heat exchange system according to any one of claims 1 to 5, further comprising temperature and/or humidity sensing means for communicating with the controller.

14. The heat exchange system of any one of claims 1 to 5, further comprising a controller, wherein the flow control device is in communication with the controller.