Dehumidification control method, controller, heat exchange system

Abstract

The application discloses a dehumidification control method, a controller and a heat exchange system. The method comprises the following steps: acquiring the temperature of an indoor environment; controlling the working state and / or the pipeline connection state of a heat source of a heat exchange system based on the comparison result of the temperature and a preset target temperature, so that the temperature of the indoor environment meets a preset temperature condition; acquiring the humidity of the indoor environment; controlling the working state and / or the pipeline connection state of the heat source of the heat exchange system based on the comparison result of the humidity and a preset target humidity, so that the humidity of the indoor environment meets a preset humidity condition; the heat exchange system comprises a heat exchange device provided with a first heat exchange end and a second heat exchange end, and the heat source comprises a first heat source and a second heat source; the first heat source and the second heat source are connected with the first and / or second heat exchange end through a pipeline. The application can adjust the indoor temperature and humidity, and ensure that the user has a comfortable feeling.

Description

Technical Field

[0001] This invention relates to the field of heat exchange system technology, and in particular to a dehumidification control method, controller, and heat exchange system. Background Technology

[0002] Currently, when using heat exchange systems for heating / cooling, fan coil units are commonly used for air distribution at the heat exchange terminal. However, these fan coil units may encounter the following problems during the cooling / heating / dehumidification process: Currently, it is difficult to simultaneously regulate indoor temperature and humidity during dehumidification operation.

[0003] For example, when cooling and dehumidifying, the indoor humidity and temperature decrease simultaneously. Although the humidity meets the user's set requirements, the decrease in indoor temperature will give the user a dry and cold feeling, resulting in a poor user experience. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a dehumidification control method, controller and heat exchange system that can simultaneously regulate indoor temperature and humidity, that is, to reliably meet the user's temperature requirements while achieving humidity regulation, and to ensure that the user has a comfortable feeling.

[0005] The specific technical solutions of this invention include:

[0006] A dehumidification control method, the dehumidification control method comprising:

[0007] Obtain the indoor temperature;

[0008] Based on the comparison result between the temperature and the preset target temperature, the working state of the heat source and / or the connection state of the pipeline of the heat exchange system used to exchange heat with the indoor environment are controlled so that the temperature of the indoor environment meets the preset temperature conditions.

[0009] Obtain the humidity of the indoor environment;

[0010] Based on the comparison result between the humidity and the preset target humidity, the working state of the heat source and / or the connection state of the pipeline of the heat exchange system used to exchange heat with the indoor environment are controlled so that the humidity of the indoor environment meets the preset humidity conditions.

[0011] The heat exchange system includes a heat exchange device with a first heat exchange end and a second heat exchange end. The heat source includes a first heat source and a second heat source. The first heat source and the second heat source are connected to the first heat exchange end and / or the second heat exchange end through pipelines.

[0012] Furthermore, after performing the steps of acquiring the indoor ambient temperature, and controlling the heat source operating state and / or pipeline connection state of the heat exchange system used for heat exchange with the indoor environment based on the comparison result of the temperature and the preset target temperature, so that the indoor ambient temperature meets the preset temperature condition, the indoor ambient humidity is acquired, and the heat source operating state and / or pipeline connection state of the heat exchange system used for heat exchange with the indoor environment is changed based on the comparison result of the humidity and the preset target humidity, so that the indoor ambient humidity meets the preset humidity condition; or, after performing the steps of acquiring the indoor ambient humidity, and controlling the heat source operating state and / or pipeline connection state of the heat exchange system used for heat exchange with the indoor environment based on the comparison result of the humidity and the preset target humidity, so that the indoor ambient humidity meets the preset humidity condition, the indoor ambient temperature is acquired, and the heat source operating state and / or pipeline connection state of the heat exchange system used for heat exchange with the indoor environment is changed based on the comparison result of the temperature and the preset target temperature, so that the indoor ambient temperature meets the preset temperature condition.

[0013] Furthermore, when the obtained humidity is greater than the preset target humidity, the method includes at least: controlling the first heat source to be in a cooling state, controlling the second heat source to be in a heating state, the first heat source being connected to the first heat exchange terminal through a pipeline, and the second heat source being connected to the second heat exchange terminal through a pipeline.

[0014] Furthermore, the preset temperature condition includes: the absolute value of the difference between the obtained temperature and the preset target temperature is less than or equal to a first preset difference, or the absolute value of the difference between the obtained temperature and the preset target temperature is greater than or equal to a second preset difference.

[0015] Furthermore, when the difference between the preset target temperature and the acquired temperature is greater than the first preset difference, the first heat source and / or the second heat source are controlled to be in a heating state.

[0016] Furthermore, both the first heat source and the second heat source are controlled to be in a heating state, with the first heat source connected to the first heat exchange terminal via a pipeline, and the second heat source connected to the second heat exchange terminal.

[0017] Furthermore, both the first heat source and the second heat source are controlled to be in a heating state, and the first heat source and the second heat source are connected to the same heat exchange terminal through pipelines.

[0018] Furthermore, when the difference between the obtained temperature and the preset target temperature is greater than a first preset difference, the first heat source is controlled to be in a cooling state, and the first heat source is connected to the first heat exchange terminal and / or the second heat exchange terminal through a pipeline.

[0019] Furthermore, the first heat source is controlled to be in a cooling state, and the first heat source is connected to both the first heat exchange terminal and the second heat exchange terminal; or, both the first heat source and the second heat source are controlled to be in a cooling state, the first heat source is connected to the first heat exchange terminal through a pipeline, and the second heat source is connected to the second heat exchange terminal.

[0020] Furthermore, when the acquired temperature meets the preset temperature condition and the acquired humidity is greater than the preset target humidity, the first heat source in the cooling state is connected to the first heat exchange terminal, and the second heat source in the heating state is connected to the second heat exchange terminal.

[0021] A controller configured to perform a dehumidification control method as described above.

[0022] A heat exchange system includes: the controller described above; a heat exchange device having a first heat exchange terminal and a second heat exchange terminal; a first heat source; a second heat source; and the first heat source, the second heat source, and the first heat exchange terminal and / or the second heat exchange terminal are connected by pipelines.

[0023] Furthermore, the first heat source is provided with a first outlet and a first return outlet, the first heat exchange terminal is provided with a first inlet and a first outlet, and a first outlet pipe is provided between the first outlet and the first inlet; a first return pipe is provided between the first return outlet and the first outlet; the second heat source is provided with a second outlet and a second return outlet, the second heat exchange terminal is provided with a second inlet and a second outlet, a second outlet pipe is provided between the second outlet and the second inlet, and a second return pipe is provided between the second outlet and the second return outlet.

[0024] Furthermore, a first connecting pipe connects the second outlet pipe to the first outlet pipe, and a second connecting pipe connects the second return pipe to the first outlet pipe. The heat exchange system also includes a flow control device. The second connecting pipe is connected to the second return pipe at a first connection position, and the first connecting pipe is connected to the second outlet pipe at a second connection position. The flow control device is located at the first connection position, or the flow control device is located in the second connecting pipe and the pipeline between the first connection position and the second outlet, or the flow control device is located at the second connection position, or the flow control device is located in the first connecting pipe and the pipeline between the second connection position and the second inlet.

[0025] Furthermore, a first connecting pipe is provided between the second outlet pipe and the first return pipe, and a second connecting pipe is provided between the second return pipe and the first return pipe. The heat exchange system also includes a flow control device. The second connecting pipe is connected to the second return pipe at a first connection position, and the first connecting pipe is connected to the second outlet pipe at a second connection position. The flow control device is located at the first connection position, or the flow control device is respectively located in the second connecting pipe and the pipeline located between the first connection position and the second outlet, or the flow control device is located at the second connection position, or the flow control device is respectively located in the first connecting pipe and the pipeline located between the second connection position and the second inlet.

[0026] Furthermore, a first connecting pipe is provided between the second outlet pipe and the first outlet pipe, and a second connecting pipe is provided between the second return pipe and the first return pipe. The heat exchange system also includes a flow control device. The second connecting pipe is connected to the second return pipe at a first connection position, and the first connecting pipe is connected to the second outlet pipe at a second connection position. The flow control device is located at the first connection position, or the flow control device is respectively located in the second connecting pipe and the pipeline located between the first connection position and the second outlet, or the flow control device is located at the second connection position, or the flow control device is respectively located in the first connecting pipe and the pipeline located between the second connection position and the second inlet.

[0027] Furthermore, the flow control device communicates with the controller. The flow control device includes 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 connected to the first heat exchange terminal. When the flow control device is in the second state, the first heat source and the second heat source are respectively connected to the first heat exchange terminal and the second heat exchange terminal.

[0028] Furthermore, the second outlet is connected to the first outlet, and the first return water pipe and the second return water pipe share a portion of each other.

[0029] Furthermore, the first heat exchange end and the second heat exchange end are integrated in the same heat exchange device, which is equipped with a fan.

[0030] Furthermore, along the airflow direction generated by the fan, the first heat exchange end is located upstream of the second heat exchange end.

[0031] Furthermore, the heat exchange area of ​​the first heat exchange terminal is larger than that of the second heat exchange terminal.

[0032] Furthermore, the heat exchange device includes any one or a combination of the following: dual heat exchange terminals, dual heat exchange terminal fresh air handling unit.

[0033] Furthermore, the first heat source and the second heat source include any one of the following: air conditioner, heat pump, gas combustion device, and electric heating device.

[0034] Furthermore, the flow control device includes a three-way valve and / or a solenoid switching valve and / or a two-way valve.

[0035] Furthermore, the heat exchange system also includes temperature and / or humidity sensors for communicating with the controller.

[0036] The technical solution of the present invention has the following significant beneficial effects:

[0037] The dehumidification control method provided in this application achieves the goal of simultaneously regulating indoor temperature and humidity by controlling the working status of the heat source and / or the connection status of the pipeline in a heat exchange system. For example, it can prioritize and quickly meet the user's temperature needs before dehumidification, or prioritize dehumidification while keeping the temperature stable before adjusting the temperature, thus ensuring that the user has a more comfortable experience.

[0038] Specific embodiments of the invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the invention can be employed. It should be understood that the embodiments of the invention are not therefore limited in scope. Within the spirit and scope of the appended claims, embodiments of the invention include many changes, modifications, and equivalents. Features described and / or shown for one embodiment may be used in the same or similar manner in one or more other embodiments, combined with features in other embodiments, or substituted for features in other embodiments. Attached Figure Description

[0039] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely illustrative to aid in understanding the invention and do not specifically limit the shapes and proportions of the components. Those skilled in the art, guided by the teachings of this invention, can select various possible shapes and proportions to implement the invention according to specific circumstances.

[0040] Figure 1 This is a flowchart of the dehumidification control method provided in the embodiments of this application;

[0041] Figure 1a This is a flowchart illustrating the steps of a dehumidification control method in one scenario according to this application;

[0042] Figure 1b This is a flowchart illustrating the steps of a dehumidification control method in another scenario of this application.

[0043] Figure 2 This is a schematic diagram of the structure of the first heat exchange system provided in the embodiments of this application;

[0044] Figure 3 This is a schematic diagram of the structure of the second heat exchange system provided in the embodiments of this application;

[0045] Figure 4 This is a schematic diagram of the structure of the third heat exchange system provided in the embodiments of this application;

[0046] Figure 5 This is a schematic diagram of the structure of the fourth heat exchange system provided in the embodiments of this application;

[0047] Figure 6 This is a schematic diagram of the structure of the fifth heat exchange system provided in the embodiments of this application;

[0048] Figure 7 This is a schematic diagram of the structure of a heat exchange device provided in the embodiments of this application;

[0049] Figure 8 for Figure 7 Main view of the heat exchanger.

[0050] The reference numerals in the above figures are as follows:

[0051] 1. First heat source; 11. First water outlet; 12. First water return outlet; 13. First water outlet pipe; 14. First water return pipe;

[0052] 2. Second heat source; 21. Second water outlet; 22. Second water return outlet; 23. Second water outlet pipe; 24. Second water return pipe;

[0053] 31. Three-way valve; 32. First solenoid switching valve; 33. Second solenoid switching valve; 34. First two-way valve; 35. Second two-way valve;

[0054] 4. Heat exchange device; 41. First heat exchange terminal; 411. First inlet; 412. First outlet; 42. Second heat exchange terminal; 421. Second inlet; 422. Second outlet;

[0055] 51. First connecting pipe; 52. Second connecting pipe; A. First connection position; B. Second connection position. Detailed Implementation

[0056] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art fall within the scope defined by the appended claims.

[0057] It should be noted that when an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0058] Unless otherwise defined, 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 is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0059] Please see Figure 1 The present application specification provides a dehumidification control method, which may include the following steps:

[0060] Step S11: Obtain the indoor ambient temperature;

[0061] Step S12: Based on the comparison result between the temperature and the preset target temperature, control the working state of the heat source and / or the connection state of the pipeline of the heat exchange system used for heat exchange with the indoor environment, so that the temperature of the indoor environment meets the preset temperature conditions.

[0062] Step S13: Obtain the humidity of the indoor environment;

[0063] Step S14: Based on the comparison result between the humidity and the preset target humidity, control the working state of the heat source and / or the connection state of the pipeline of the heat exchange system used to exchange heat with the indoor environment, so that the humidity of the indoor environment meets the preset humidity conditions.

[0064] The heat exchange system includes a heat exchange device with a first heat exchange end and a second heat exchange end. The heat source includes a first heat source and a second heat source. The first heat source and the second heat source are connected to the first heat exchange end and / or the second heat exchange end through pipelines.

[0065] Please refer to the following: Figures 2 to 4This dehumidification control method can be applied to a system including a first heat source 1, a second heat source 2, and a heat exchange device 4 equipped with a first heat exchange terminal 41 and a second heat exchange terminal 42.

[0066] In this specification, the first heat source 1 can be a device capable of cooling, a device capable of heating, or a device that combines both cooling and heating functions. Specifically, the first heat source 1 can be a heat pump, an air conditioner, or other heat exchange equipment, such as a gas combustion device or an electric heating device. In this specification, the first heat source 1 is mainly illustrated using a heat pump as an example; other forms can be described by analogy, and will not be elaborated upon here.

[0067] The second heat source 2 can be a heating device, a cooling device, or a device that combines both heating and cooling functions. Specifically, the second heat source 2 can be a gas combustion device, an electric heating device, a heat pump water heater, or an air conditioner. Of course, the second heat source 2 can also be other heating devices capable of providing heating, such as other new energy heating devices. When the second heat source 2 is a gas combustion device, it can specifically be a wall-hung boiler, a gas water heater, etc. When the second heat source 2 is an electric heating device, it can specifically be an electric water heater. In this specification, the second heat source 2 is mainly illustrated using a wall-hung boiler as an example; other forms can be described by analogy, and will not be elaborated upon here.

[0068] The first heat source 1 and the second heat source 2 can be connected to a heat exchange device 4 via pipelines. The heat exchange device 4 is used to transfer heat from the fluid to the air. The heat exchange device 4 can be in the form of a fan coil unit, but it may also be in other forms; this application does not make a specific limitation here. In this specification, the heat exchange device 4 is mainly illustrated by way of a fan coil unit.

[0069] In this specification, the heat exchange device 4 may include: a first heat exchange terminal 41 and a second heat exchange terminal 42. The first heat exchange terminal 41 and the second heat exchange terminal 42 may be integrated into the same heat exchange device 4. When the first heat exchange terminal 41 and the second heat exchange terminal 42 are integrated into the same heat exchange device 4, the heat exchange device 4 can be any of the following: a dual heat exchange terminal, or a dual heat exchange terminal fresh air handling unit.

[0070] In this specification, depending on the specific form of the first heat source 1 and the second heat source 2, each may include multiple operating modes. For example, the first heat source 1 may store multiple modes, including: heating mode, cooling mode, dehumidification mode, defrosting mode, etc.; the second heat source 2 may also store multiple modes, including: heating mode, dehumidification mode, and of course, cooling mode, defrosting mode, etc.

[0071] When implementing this dehumidification control method, the temperature and humidity of the indoor environment can be obtained, and based on the comparison results between the temperature and humidity and the corresponding preset target values ​​(preset target temperature, preset target humidity), the working state of the heat source and / or the connection state of the pipeline of the heat exchange system used to exchange heat with the indoor environment can be controlled so that the indoor environment meets the preset temperature and humidity conditions.

[0072] In one embodiment, after performing the steps of acquiring the indoor temperature, controlling the heat source operating state and / or pipeline connection state of the heat exchange system used for heat exchange with the indoor environment based on the comparison result of the temperature and the preset target temperature, so that the indoor temperature meets the preset temperature condition, the indoor humidity is acquired, and based on the comparison result of the humidity and the preset target humidity, the heat source operating state and / or pipeline connection state of the heat exchange system used for heat exchange with the indoor environment is changed so that the indoor humidity meets the preset humidity condition.

[0073] In the implementation method, the temperature can be determined first. If the indoor temperature meets the preset temperature condition, the humidity can be compared with the preset target humidity. If the humidity does not meet the preset humidity condition, at least one of the following can be adjusted: the working state of the heat source of the heat exchange system and the connection state of the pipeline in the heat exchange system. This will make the humidity of the indoor environment meet the preset humidity condition, that is, finally the temperature and humidity meet the preset temperature and humidity conditions at the same time.

[0074] In another embodiment, after performing the steps of acquiring the humidity of the indoor environment, and controlling the working state of the heat source and / or the connection state of the pipeline of the heat exchange system used for heat exchange with the indoor environment based on the comparison result of the humidity and the preset target humidity, so that the humidity of the indoor environment meets the preset humidity condition, the temperature of the indoor environment is acquired, and the working state of the heat source and / or the connection state of the pipeline of the heat exchange system used for heat exchange with the indoor environment is changed based on the comparison result of the temperature and the preset target temperature, so that the temperature of the indoor environment meets the preset temperature condition.

[0075] In the implementation method, the humidity can be determined first. If the humidity of the indoor environment meets the preset humidity condition, the temperature can be compared with the preset temperature condition. If the temperature does not meet the preset temperature condition, at least one of the following can be adjusted: the working state of the heat source of the heat exchange system and the connection state of the pipeline in the heat exchange system. This will make the temperature of the indoor environment meet the preset temperature condition, that is, finally the temperature and humidity meet the preset temperature and humidity conditions at the same time.

[0076] Alternatively, in some cases, the adjustment of temperature and humidity may not have a strict order. For example, temperature and humidity can be adjusted simultaneously until both temperature and humidity simultaneously meet preset temperature and humidity conditions; or, the adjustment of temperature and humidity may have overlapping intervals of partial simultaneous adjustment and non-overlapping intervals of partial independent adjustment, or the adjustment of temperature and humidity may have at least partially alternating intervals, and so on. Specifically, the relative order of the above-mentioned temperature and humidity adjustments can be flexibly adjusted, and this application does not impose a unique limitation on it.

[0077] For example, when adjusting the temperature, an estimate can be made while the heat exchange system is operating in its current state: if the indoor temperature meets the preset temperature condition, will the humidity also meet the preset humidity condition? If the humidity meets the preset humidity condition, then the heat exchange system can simultaneously meet both the preset temperature and humidity conditions while operating in its current state. If the indoor temperature meets the preset temperature condition, but the humidity does not yet meet the preset humidity condition, then the humidity can be adjusted before the indoor temperature meets the preset temperature condition.

[0078] Specifically, when adjusting humidity, the humidity can be directly made to meet the preset humidity conditions; or the humidity can be made not to meet the preset humidity conditions directly, so that the heat exchange system operates in the current state after adjustment. Later, the temperature and humidity of the current environment can be predicted again. When adjusting the temperature, if the indoor temperature meets the preset temperature conditions, can the humidity also meet the preset temperature conditions? If it can, the heat exchange system operates in the current state. If it cannot, the above humidity adjustment steps can be repeated until both temperature and humidity meet the preset temperature and humidity conditions.

[0079] In one embodiment, when the obtained humidity is greater than the preset target humidity, the method includes at least: controlling the first heat source 1 to be in a cooling state, controlling the second heat source 2 to be in a heating state, wherein the first heat source 1 is connected to the first heat exchange terminal 41 through a pipeline, and the second heat source 2 is connected to the second heat exchange terminal 42 through a pipeline.

[0080] In this embodiment, when the obtained humidity is greater than the preset target humidity, it indicates that humidity adjustment is required. Various situations may arise during the humidity adjustment process.

[0081] Scenario 1: When the acquired temperature meets the preset temperature condition, no temperature adjustment is required. In this case, the heat exchange system can perform "constant temperature" dehumidification. "Constant temperature" here and below does not only mean maintaining a constant temperature value, but also includes situations where the temperature fluctuates within a small range. Scenario 2: When the acquired temperature is lower than the preset temperature condition, the temperature can be increased first, and then "constant temperature" dehumidification can be performed once the temperature meets the preset temperature condition. Scenario 3: When the acquired temperature is lower than the preset temperature condition, the temperature can be decreased first, and then "constant temperature" dehumidification can be performed once the temperature meets the preset temperature condition. Of course, for Scenario 2 and Scenario 3, the adjustment of temperature and humidity is not limited to the order of the examples above, and those skilled in the art can make flexible adjustments based on this. When temperature is adjusted first, followed by humidity, it is considered that temperature is more intuitive for the user's comfort. When the temperature reaches the preset target temperature, in most cases, the user's comfort level is already quite high. Further constant temperature dehumidification ensures that both the temperature and humidity meet the preset temperature and humidity conditions, thus guaranteeing the user's comfort.

[0082] During constant-temperature dehumidification, the first heat source 1 can be controlled to be in a cooling state, and the second heat source 2 to be in a heating state. The first heat source 1 provides a cooling medium (e.g., cold water) to the first heat exchange terminal 41, and this first heat source 1 is mainly used for cooling and dehumidification. The second heat source 2 provides a heating medium (e.g., hot water) to the second heat exchange terminal 42, and can be used to heat the cold air in the first heat exchange terminal 41, so that the temperature of the air finally delivered to the room meets the preset temperature conditions.

[0083] Specifically, the preset temperature condition may include: the absolute value of the difference between the obtained temperature and the preset target temperature is less than or equal to a first preset difference; or, the preset temperature condition may include: the absolute value of the difference between the obtained temperature and the preset target temperature is greater than or equal to a second preset difference.

[0084] The preset target temperature can be a temperature set by the user, or it can be a temperature preset by the heat exchange system based on the environment and the user's general needs, or it can be a temperature determined by learning the user's usage habits. The preset temperature condition can be that the absolute value of the difference between the current indoor temperature and the preset target temperature is within a first preset difference range.

[0085] The specific value of the first preset difference can be set according to the actual control accuracy requirements, and this application does not impose a specific limitation here. For example, the first preset difference can be 0℃ (degrees Celsius), 1℃, or 2℃, etc. For example, when the preset target temperature is 25℃ and the first preset difference is 0℃, during the cooling and dehumidification process, when the temperature drops to 25℃, the constant temperature dehumidification step can be performed.

[0086] The purpose of setting this second preset difference is to reserve a certain margin for temperature fluctuations, so as to prevent the indoor ambient temperature, which has already met the preset temperature conditions, from fluctuating during the subsequent constant temperature dehumidification process. In the end, when the humidity is adjusted to the preset humidity conditions, the temperature deviates significantly from the preset target temperature and no longer meets the preset temperature conditions.

[0087] Specifically, the specific value of the second preset difference can be set according to actual control accuracy and other conditions, and this application does not impose specific limitations here. For example, the second preset difference can be 1℃, 2℃, etc. For example, when the preset target temperature is 25℃, the first preset difference is 2℃, that is, a temperature fluctuation margin of 2℃ is reserved. During the cooling and dehumidification process, the temperature can be reduced to 23℃ before constant temperature dehumidification begins, to prevent the heat exchange system from being affected by the heating source during the constant temperature dehumidification process, causing the actual indoor temperature to be higher than the preset target temperature.

[0088] Furthermore, the preset humidity condition can also be set in conjunction with actual control precision and other conditions. The preset humidity condition can be that the absolute value of the difference between the obtained humidity and the preset target humidity is within a preset range. Specifically, this application does not impose a specific limitation on the preset range. For example, the preset range can be within 5%, or other humidity ranges.

[0089] When this dehumidification control method is applied to a heat exchange system, the working states of the first heat source 1 and the second heat source 2, as well as the connection relationship between the two heat sources and the pipeline, can be different for different operating conditions, such as different temperature and humidity conditions and different user needs. The different heat source states and pipeline connection relationships can be adjusted and switched to form different combination schemes, thereby more intelligently meeting the user's comfort needs.

[0090] In one embodiment, when the difference between the preset target temperature and the acquired temperature is greater than the first preset difference, the first heat source 1 and / or the second heat source 2 are controlled to be in a heating state.

[0091] In this embodiment, when the difference between the preset target temperature and the acquired temperature is greater than the first preset difference, it indicates that the current indoor temperature is too low, and a heat source is needed to raise the temperature. When using a heat source to raise the temperature, the first heat source 1 can be controlled to be in heating mode, the second heat source 2 can be controlled to be in heating mode, or both the first heat source 1 and the second heat source 2 can be controlled to be in heating mode simultaneously. Specifically, the number and combination of heat sources that need to be connected can be matched according to the current difference or the user's needs.

[0092] When the first heat source 1 and the second heat source 2 are both in heating mode, it is beneficial to achieve a rapid heating effect. When the first heat source 1 and the second heat source 2 are both in heating mode, they can supply heat to the same heat exchange terminal or supply heat to different heat exchange terminals respectively.

[0093] In one specific implementation, both the first heat source 1 and the second heat source 2 are controlled to be in a heating state, and the first heat source 1 and the second heat source 2 are connected to the same heat exchange terminal through pipelines.

[0094] In this embodiment, the first heat source 1 and the second heat source 2 are connected to the same heat exchange terminal via pipelines. Specifically, the heat exchange terminal can be either a first heat exchange terminal 41 or a second heat exchange terminal 42. When the heat exchange areas of the first heat exchange terminal 41 and the second heat exchange terminal 42 are different, for example, when the heat exchange area of ​​the first heat exchange terminal 41 is larger than that of the second heat exchange terminal 42, in order to further improve the rapid heating effect, the first heat source 1 and the second heat source 2 can be simultaneously connected to the first heat exchange terminal 41 with the larger heat exchange area.

[0095] In one specific implementation, both the first heat source 1 and the second heat source 2 are controlled to be in a heating state. The first heat source 1 is connected to the first heat exchange terminal 41 through a pipeline, and the second heat source 2 is connected to the second heat exchange terminal 42.

[0096] In this embodiment, the first heat source 1 is connected to the first heat exchange terminal 41 via a pipeline, and the second heat source 2 is connected to the second heat exchange terminal 42. When heating is required, the first heat source 1 supplies heat to the first heat exchange terminal 41, and the second heat source 2 supplies heat to the second heat exchange terminal 42, thereby fully utilizing the heat exchange area of ​​the first heat exchange terminal 41 and the second heat exchange terminal 42, and further improving the rapid heating effect.

[0097] In one embodiment, when the difference between the obtained temperature and the preset target temperature is greater than a first preset difference, the first heat source 1 is controlled to be in a cooling state, and the first heat source 1 is connected to the first heat exchange terminal 41 and / or the second heat exchange terminal 42 through a pipeline.

[0098] In this embodiment, when the difference between the obtained temperature and the preset target temperature is greater than a first preset difference, it indicates that the current indoor temperature is too high, and a heat source is needed to cool it down. When using a heat source for cooling, one heat source can be controlled to be in a cooling state. For example, when the first heat source 1 is in a cooling state, the first heat source 1 can be connected to the first heat exchange terminal 41 through a pipe, or connected to the second heat exchange terminal 42 through a pipe, or simultaneously connected to the first heat exchange terminal 41 and the second heat exchange terminal 42 through a pipe.

[0099] Furthermore, when cooling is required, in addition to controlling the first heat source 1 to be in a cooling state, the second heat source 2 can also be controlled to be in a cooling state, or both the first heat source 1 and the second heat source 2 can be controlled to be in a cooling state simultaneously. Specifically, the number of heat sources to be connected and the combination of heat sources and heat exchange terminals can be matched according to the current temperature difference, user needs, and other conditions.

[0100] When the first heat source 1 and the second heat source 2 are both in a cooling state, it is beneficial to achieve a rapid cooling effect. When the first heat source 1 and the second heat source 2 are both in a cooling state, they can provide a cooling medium (e.g., cold water) to the same heat exchange terminal, or they can provide a cooling medium (e.g., cold water) to different heat exchange terminals respectively.

[0101] In one specific implementation, the first heat source 1 can be controlled to be in a cooling state, and the first heat source 1 is connected to both the first heat exchange terminal 41 and the second heat exchange terminal 42.

[0102] When the first heat source 1 in the cooling state is connected to both the first heat exchange terminal 41 and the second heat exchange terminal 42, the heat exchange area of ​​the first heat exchange terminal 41 and the second heat exchange terminal 42 can be fully utilized to achieve a faster cooling rate.

[0103] Alternatively, in another specific embodiment, both the first heat source 1 and the second heat source 2 can be controlled to be in a cooling state, with the first heat source 1 connected to the first heat exchange terminal 41 via a pipeline, and the second heat source 2 connected to the second heat exchange terminal 42.

[0104] In this embodiment, when the first heat source 1 and the second heat source 2 are both in a cooling state, it is beneficial to achieve a rapid cooling effect. Furthermore, when the first heat source 1 in the cooling state is connected to the first heat exchange terminal 41, and the second heat source 2 in the cooling state is connected to the second heat exchange terminal 42, the cooling rate can be further improved, causing the indoor temperature to drop rapidly.

[0105] In one embodiment, when the acquired temperature meets the preset temperature condition and the acquired humidity is greater than the preset target humidity, the first heat source 1 in the cooling state is connected to the first heat exchange terminal 41, and the second heat source 2 in the heating state is connected to the second heat exchange terminal 42.

[0106] In this embodiment, after the temperature adjustment of heating or cooling as described above, if the current temperature meets the preset temperature condition, or if the current indoor ambient temperature just meets the preset temperature condition without temperature adjustment, that is, without the need for temperature adjustment, if the obtained humidity is greater than the preset target humidity, the first heat source 1 in the cooling state can be connected to the first heat exchange terminal 41, and the second heat source 2 in the heating state can be connected to the second heat exchange terminal 42 to perform "constant temperature" dehumidification.

[0107] like Figure 1a As shown, for operating conditions requiring rapid heating followed by "constant temperature" dehumidification, the dehumidification control method provided in this application may specifically include the following steps:

[0108] Step S11: Obtain the indoor ambient temperature;

[0109] Step S121: When the difference between the preset target temperature and the obtained temperature is greater than the first preset difference, control both the first heat source and the second heat source to be in heating mode. The first heat source is connected to the first heat exchange terminal through a pipeline, and the second heat source is connected to the second heat exchange terminal, so that the indoor temperature meets the preset temperature condition.

[0110] Step S13: Obtain the humidity of the indoor environment;

[0111] Step S141: When the acquired temperature meets the preset temperature condition and the acquired humidity is greater than the preset target humidity, the first heat source is switched from the heating state to the cooling state. The first heat source in the cooling state is connected to the first heat exchange terminal, and the second heat source in the heating mode is connected to the second heat exchange terminal.

[0112] In order to quickly raise the indoor temperature and achieve rapid heating when the indoor temperature is low, the first heat source and the second heat source can be controlled to be in heating mode at the same time.

[0113] In this embodiment, the first heat source and the second heat source are both in heating mode. Furthermore, the first heat source is connected to a first heat exchange terminal, and the second heat source is connected to a second heat exchange terminal, allowing full utilization of the heating capacity of both heat sources and the heat exchange area of ​​both heat exchange terminals to rapidly increase the indoor temperature.

[0114] Once the indoor temperature is raised to meet the preset temperature conditions within a short period, if the humidity is still too high, the operating state of one of the heat sources can be switched from heating to cooling for dehumidification. Simultaneously, another heat source in heating mode is used for temperature compensation. Finally, "constant temperature" air is delivered into the room through the heat exchanger. This dehumidification control method effectively and quickly meets the user's temperature needs while maintaining temperature stability during dehumidification, ensuring a comfortable user experience.

[0115] like Figure 1b As shown, for operating conditions requiring rapid heating followed by "constant temperature" dehumidification, the dehumidification control method provided in this application may specifically include the following steps:

[0116] Step S11: Obtain the indoor ambient temperature;

[0117] Step S122: When the difference between the preset target temperature and the obtained temperature is greater than the first preset difference, control both the first heat source and the second heat source to be in heating mode. The first heat source and the second heat source are connected to the first heat exchange terminal through pipelines so that the indoor temperature meets the preset temperature conditions.

[0118] Step S13: Obtain the humidity of the indoor environment;

[0119] Step S142: When the acquired temperature meets the preset temperature condition and the acquired humidity is greater than the preset target humidity, the first heat source is switched from the heating state to the cooling state. The first heat source in the cooling state is connected to the first heat exchange terminal, and the second heat source in the heating mode is switched to be connected to the second heat exchange terminal.

[0120] In order to quickly raise the indoor temperature and achieve rapid heating when the indoor temperature is low, the first heat source and the second heat source can be controlled to be in heating mode at the same time.

[0121] In this embodiment, both the first and second heat sources are simultaneously in heating mode. Furthermore, the first and second heat sources in heating mode can be connected to the same heat exchange terminal, for example, both can be connected to the first heat exchange terminal. When both heat sources are in heating mode, their heating capacities can be fully utilized. Especially when the heating capacities, energy consumption, and other performance parameters of the two heat sources differ, the heat source with a higher outlet water temperature but higher energy consumption can be used to raise the outlet water temperature of the heat source with a lower outlet water temperature and lower energy consumption, thereby rapidly increasing the indoor temperature.

[0122] Once the indoor temperature is raised to meet the preset temperature conditions within a short period, if the humidity is still too high, the operating state of one of the heat sources can be changed from heating to cooling. For example, the first heat source can be switched from heating to cooling for dehumidification. Simultaneously, the connection between the second heat source and the heat exchange terminal can be altered by changing the pipe connections, allowing the second heat source to connect to the second heat exchange terminal. The second heat source in heating mode is used to compensate for the indoor temperature, ensuring that "constant temperature" air is delivered from the heat exchange device into the room. This dehumidification control method can quickly meet the user's need for temperature increase while maintaining temperature during dehumidification, thus ensuring a comfortable user experience.

[0123] Overall, the dehumidification control method provided in this manual achieves the balance between regulating indoor temperature and humidity by controlling the working status of the heat source and / or the connection status of the pipeline in a heat exchange system. It can prioritize and quickly meet the user's temperature needs before dehumidification; or prioritize dehumidification while keeping the temperature stable before adjusting the temperature, ensuring that the user has a relatively comfortable experience.

[0124] This specification also provides a controller configured to execute the dehumidification control method described above. Specifically, the controller can be set independently with the first heat source 1 and the second heat source 2, or it can be integrated with either the first heat source 1 or the second heat source 2; no specific limitations are made herein. In use, the controller can establish communication with the first heat source 1 and the second heat source 2.

[0125] Please refer to the following: Figures 2 to 6 This specification also provides a heat exchange system, which may include the controller described in the above embodiments, a heat exchange device 4 provided with a first heat exchange terminal 41 and a second heat exchange terminal 42, a first heat source 1, a second heat source 2, and the first heat source 1, the second heat source 2, and the first heat exchange terminal 41 and / or the second heat exchange terminal 42 are connected by pipelines.

[0126] Furthermore, the heat exchange system may also include a temperature sensor and / or a humidity sensor for communicating with the controller. The temperature sensor can be used to acquire the real-time temperature of the indoor environment, and the controller communicating with the temperature sensor can receive the temperature signal detected by the temperature sensor and use the temperature signal to determine the current indoor temperature. Similarly, the humidity sensor can be used to acquire the real-time humidity of the indoor environment, and the controller communicating with the humidity sensor can receive the humidity signal detected by the humidity sensor and use the humidity signal to determine the current indoor humidity.

[0127] Of course, the controller can also acquire temperature and humidity information through other means. For example, the controller can communicate with a network and receive temperature and humidity information sent by the network to determine the current indoor temperature and humidity. However, the methods for acquiring indoor temperature and humidity are not limited to the examples above, and those skilled in the art can use other methods, which will not be listed here.

[0128] In one embodiment, the first heat source 1 is provided with a first outlet 11 and a first return outlet 12, the first heat exchange terminal 41 is provided with a first inlet 411 and a first outlet 412, a first outlet pipe 13 is provided between the first outlet 11 and the first inlet 411, a first return pipe 14 is provided between the first return outlet 12 and the first outlet 412, the second heat source 2 is provided with a second outlet 21 and a second return outlet 22, the second heat exchange terminal 42 is provided with a second inlet 421 and a second outlet 422, a second outlet pipe 23 is provided between the second outlet 21 and the second inlet 421, and a second return pipe 24 is provided between the second outlet 422 and the second return outlet 22.

[0129] In this embodiment, the first heat source 1 and the second heat source 2 can be connected to the first heat exchange terminal 41 and the second heat exchange terminal 42 respectively. That is, the first heat source 1 is combined with the first heat exchange terminal 41, and the second heat source 2 is combined with the second heat exchange terminal 42 for independent control, realizing individual cooling; individual heating; or simultaneous cooling and heating; or one cooling and the other cooling. In addition, the first heat source 1 and the second heat source 2 can also be connected in series or in parallel through connecting pipes. Specifically, the second heat source 2 can be connected in series to the first outlet pipe 13 of the first heat source 1, or it can be connected in series to the first return pipe 14 of the first heat source 1, or it can be connected in parallel with the first heat source 1.

[0130] The heat exchange system may also include a flow control device. This flow control device is used to control the flow rate in the pipeline. By controlling the flow rate in the pipeline, the connection between pipelines can be controlled, and the flow direction of the fluid in the pipeline can be changed, so that the heat source and the heat exchange terminal can be connected to form different combinations.

[0131] The flow control device may include a three-way valve 31 and / or a solenoid switching valve and / or a two-way valve. The flow control device can be any one of the three-way valve 31, the solenoid switching valve, and the two-way valve, or a combination of two or more of them. Of course, the flow control device can also be other forms capable of controlling the flow rate in the pipeline.

[0132] like Figure 2 As shown, in the first specific embodiment, a first connecting pipe 51 connects the second water outlet pipe 23 to the first water outlet pipe 13, and a second connecting pipe 52 connects the second water return pipe 24 to the first water outlet pipe 13. The second connecting pipe 52 is connected to the second water return pipe 24 at a first connection position A, and the first connecting pipe 51 is connected to the second water outlet pipe 23 at a second connection position B.

[0133] like Figure 2 As shown, the flow control device can be located at the first connection position A; or, as... Figure 3 As shown, the flow control device can be respectively installed in the second connecting pipe 52, the pipeline located between the first connection position A and the second outlet 422; or, as... Figure 6 As shown, the flow control device can be located at the second connection position B; or, as... Figure 3 As shown, the flow control device can be respectively installed in the first connecting pipe 51, the pipeline located between the second connecting position B and the second inlet 421.

[0134] like Figure 2 As shown, in this embodiment, when the second heat source 2 is connected in series to the first return water pipe 14 of the second heat source 2 through the first connecting pipe 51 and the second connecting pipe 52, the second connecting pipe 52 is connected to the second return water pipe 24 at the first connection position A, and the first connecting pipe 51 is connected to the second outlet water pipe 23 at the second connection position B.

[0135] Specifically, the flow control device can be installed at different locations in the pipeline depending on its specific form. For example, when the flow control device is in the form of a three-way valve 31, it can be installed at the junction of two pipelines, such as the first connection position A (e.g., Figure 2 (as shown) or the second connection position B (as shown) Figure 6 (As shown).

[0136] When the flow control device is a solenoid switching valve or a two-way valve, such as Figure 4 As shown, the flow control device may include a first electromagnetic switching valve 32 and a second electromagnetic switching valve 33. The second electromagnetic switching valve 33 may be installed on the second connecting pipe 52, and the first electromagnetic switching valve 32 may be installed on the pipe between the first connecting position A and the second outlet 422. It should be noted that if an electromagnetic switching valve is already installed on the pipe where the first electromagnetic switching valve is located, the existing electromagnetic switching valve can be used without the need for an additional one.

[0137] Or, such as Figure 3 As shown, the flow control device may include a first two-way valve 34 and a second two-way valve 35. The first two-way valve 34 may be disposed in the first connecting pipe 51, and the second two-way valve 35 may be located in the pipeline between the second connecting position B and the second inlet 421.

[0138] like Figure 3 As shown, in the second specific embodiment, a first connecting pipe 51 is provided between the second outlet pipe 23 and the first return pipe 14, and a second connecting pipe 52 is provided between the second return pipe 24 and the first return pipe 14. The second connecting pipe 52 is connected to the second return pipe 24 at a first connection position A, and the first connecting pipe 51 is connected to the second outlet pipe 23 at a second connection position B. The flow control device is located at the first connection position A, or the flow control device is respectively located in the second connecting pipe 52 and the pipeline located between the first connection position A and the second outlet 422, or the flow control device is located at the second connection position B, or the flow control device is respectively located in the first connecting pipe 51 and the pipeline located between the second connection position B and the second inlet 421.

[0139] In this embodiment, the main difference from the first embodiment is that the connection positions of the first connecting pipe 51 and the second connecting pipe 52 are different. The second heat source 2 is connected in series to the first return water pipe 14 of the second heat source 2 through the first connecting pipe 51 and the second connecting pipe 52.

[0140] In this embodiment, when the second heat source 2 is connected in series to the first return water pipe 14 of the second heat source 2 via the first connecting pipe 51 and the second connecting pipe 52, the flow control device can be installed at multiple locations on the pipeline. The multiple locations and their combinations can be found in the first specific embodiment, and will not be described further here.

[0141] like Figure 4As shown, in the third specific embodiment, a first connecting pipe 51 is provided between the second outlet pipe 23 and the first outlet pipe 13, and a second connecting pipe 52 is provided between the second return pipe 24 and the first return pipe 14. The second connecting pipe 52 is connected to the second return pipe 24 at a first connection position A, and the first connecting pipe 51 is connected to the second outlet pipe 23 at a second connection position B. The flow control device is located at the first connection position A, or the flow control device is respectively located in the second connecting pipe 52 and the pipeline located between the first connection position A and the second outlet 422, or the flow control device is located at the second connection position B, or the flow control device is respectively located in the first connecting pipe 51 and the pipeline located between the second connection position B and the second inlet 421.

[0142] In this embodiment, the main difference from the first specific embodiment is that the connection positions of the first connecting pipe 51 and the second connecting pipe 52 are different. The second heat source 2 is connected to the first outlet pipe 13 and the first return pipe 14 of the second heat source 2 through the first connecting pipe 51 and the second connecting pipe 52.

[0143] In this embodiment, when the second heat source 2 is connected in parallel to the first outlet pipe 13 and the first return pipe 14 of the second heat source 2 via the first connecting pipe 51 and the second connecting pipe 52, the flow control device can also be installed at multiple locations on the pipeline. The multiple locations and their combinations can be found in the first specific embodiment, and will not be described further here.

[0144] In one embodiment, the flow control device communicates with the controller. The flow control device includes 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 connected to the first heat exchange terminal 41. When the flow control device is in the second state, the first heat source 1 and the second heat source 2 are respectively connected to the first heat exchange terminal 41 and the second heat exchange terminal 42.

[0145] In this embodiment, when the flow control device in the heat exchange system switches to different states, the connection relationship between the first heat source 1 and the second heat source 2 and the first heat exchange terminal 41 and the second heat exchange terminal 42 can be changed.

[0146] by Figure 2For example, when the flow control device is in the form of a three-way valve 31, the first state specifically means that a and b are connected, while a and c are not connected. In this case, both the first heat source 1 and the second heat source 2 are connected to the first heat exchange terminal 41, and heating medium can be simultaneously supplied to the first heat exchange terminal 41. For instance, when the first heat source 1 is a heat pump, its outlet water temperature is the first outlet water temperature; the second heat source 2 is a wall-mounted boiler, its outlet water temperature is the second outlet water temperature, which is higher than the first outlet water temperature. Both the first heat source 1 and the second heat source 2 can be in heating mode. When the flow control device is in the first state, the outlet water of the second heat source 2 can mix with the outlet water of the first heat source 1, thereby using the higher temperature of the second outlet water to raise the temperature of the first outlet water, providing a higher heating temperature to the first heat exchange terminal 41, thus ensuring that the heat exchange system has a faster heating speed, that is, ensuring that the indoor temperature is efficiently raised.

[0147] The second state specifically refers to a being disconnected from b and connected to c. The first heat source 1 is connected to the first heat exchange terminal 41, and the second heat source 2 is connected to the second heat exchange terminal 42. The first heat source 1 can be in a cooling state, and the second heat source 2 can be in a heating state, thereby achieving "constant temperature" dehumidification. This ensures that when the indoor temperature meets the preset temperature condition, but the humidity does not meet the preset humidity condition, dehumidification can be performed while reliably maintaining the temperature around the preset value, thus better ensuring user comfort.

[0148] For the entire heat exchange system, the working states of the first heat source 1 and the second heat source 2, and their connection relationships with the first heat exchange terminal 41 and the second heat exchange terminal 42 are not limited to the examples mentioned above, and will not be elaborated on in detail here.

[0149] In this specification, the control logic of the controller in the above heat exchange system is illustrated as follows.

[0150] Firstly, the controller can store or temporarily receive preset target temperatures and humidity levels. Upon receiving the currently acquired indoor temperature and humidity, it can first determine the temperature.

[0151] When the difference between the acquired temperature and the preset target temperature is greater than a first preset difference, it indicates that the current indoor temperature is too high and cooling is required. In this case, cooling can be achieved by connecting the first heat source 1 to the first heat exchange terminal 41 and the second heat exchange terminal 42.

[0152] like Figure 4As shown, when the first heat source 1 is connected to the first heat exchange terminal 41 and the second heat exchange terminal 42, the second heat source 2 is in a shutdown state. A portion of the fluid flowing from the first outlet pipe 13 enters the first inlet 411, exchanges heat with the first heat exchange terminal 41, and then flows back to the first heat source 1 through the first outlet 412 and the first return water pipe 14. Another portion of the fluid flowing from the first outlet pipe 13 first passes through the first connecting pipe 51 into the second outlet pipe 23, and then enters the second inlet 421. After exchanging heat with the second heat exchange terminal 42, it flows back to the first heat source 1 through the second outlet 422, the second return water pipe 24, the second connecting pipe 52, and the first return water pipe 14. During this 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 can be in a connected state.

[0153] When the difference between the preset target temperature and the acquired temperature is greater than a first preset difference, it indicates that the current indoor temperature is low and heating is required. In this case, heating can be achieved by connecting the first heat source 1 to the first heat exchange terminal 41 and the second heat source 2 to the second heat exchange terminal 42. Furthermore, from an energy efficiency perspective, the more energy-efficient first heat source 1 can be used to connect the first heat exchange terminal 41 and the second heat exchange terminal 42 for heating.

[0154] In addition, humidity can be determined after temperature determination, or after the indoor temperature meets the preset temperature condition. Of course, humidity can also be determined at the same time as temperature determination. The specific order of determination has been explained in the above method implementation, and will not be repeated here.

[0155] When the difference between the humidity and the preset target humidity is greater than the preset humidity difference, it indicates that the current indoor humidity is high and dehumidification is required. At this time, the first heat source 1 can be controlled to be in cooling mode, providing cooling medium to the first heat exchange terminal 41; the second heat source 2 can be controlled to be in heating mode, providing heating medium to the second heat exchange terminal 42, thereby achieving "constant temperature" dehumidification.

[0156] Furthermore, for scenarios where cooling is performed first, followed by dehumidification, the first heat source 1 can be connected to the first heat exchange terminal 41 and the second heat exchange terminal 42 to perform cooling and dehumidification, ensuring the humidity meets the preset humidity conditions. At this point, the temperature may be lower than the preset target temperature; for example, the difference between the preset temperature and the current temperature may be greater than 2°C. Simultaneously, the second heat source 2 can be activated, with the first heat source 1 connected to the first heat exchange terminal 41 and the second heat source 2 connected to the second heat exchange terminal 42, to supplement the indoor environment with heat. During this process, a temperature judgment step can 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°C, the capacity of the second heat source 2 (wall-mounted boiler) can be reduced or it can be shut down, while the first heat source 1 continues cooling until the humidity meets the preset humidity conditions.

[0157] Overall, the heat exchange system provided in this manual allows for flexible control of the operating states of the first heat source 1 and the second heat source 2, as well as their connection to the piping, thus meeting the personalized needs of different users for cooling, heating, and dehumidification. Specifically, during cooling, it can utilize one heat source connected to one heat exchange terminal for single-heat-exchange-terminal cooling; it can also utilize one heat source connected to two heat exchange terminals for simultaneous dual-heat-exchange-terminal cooling; furthermore, when both heat sources have cooling capacity, they can each be connected to one heat exchange terminal for simultaneous dual-heat-source, dual-heat-exchange-terminal cooling, further improving the cooling speed.

[0158] When heating, it can use one heat source to connect to one heat exchange terminal for single heat exchange terminal cooling; it can also use one heat source to connect to two heat exchange terminals for simultaneous heating of both heat exchange terminals; in addition, when both heat sources have heating capacity, it can use two heat sources to connect to one heat exchange terminal, or connect to one heat exchange terminal respectively for simultaneous heating of both heat sources and both heat exchange terminals, further improving the cooling speed.

[0159] During dehumidification, it can use a heating source connected to a heat exchange terminal and a cooling source connected to a heat exchange terminal to achieve constant temperature dehumidification.

[0160] like Figure 5 As shown, in the fourth specific embodiment, the second outlet 422 and the first outlet 412 are connected, and the first return water pipe 14 and the second return water pipe 24 are partially shared.

[0161] In this embodiment, to simplify the piping and reduce installation complexity, the first return water pipe 14 and the second return water pipe 24 are partially shared. The second outlet 422 and the first outlet 412 of the heat exchange device 4 are connected, that is, the return liquid flowing out from the second outlet 422 and the first outlet 412 first uses the same return water pipe to converge, then enters the shared return water pipe, and finally returns to the first heat source 1 and the second heat source 2 respectively.

[0162] In one embodiment, the first heat exchange terminal 41 and the second heat exchange terminal 42 are integrated in the same heat exchange device 4, which is equipped with a fan.

[0163] In this embodiment, the two heat exchange terminals can be integrated into the same heat exchange device 4, and the same fan can be used to guide air to both heat exchange terminals to achieve "constant temperature" dehumidification. When the heat exchange system is in the constant temperature dehumidification process, the first heat source 1 in the cooling state provides a cooling medium (e.g., cold water) to the first heat exchange terminal 41, and the second heat source 2 in the heating state provides a heating medium (e.g., hot water) to the second heat exchange terminal 42. When the airflow generated by the fan passes through the cooling medium and the heating medium, its temperature can remain relatively stable, thereby achieving constant temperature dehumidification. It should be noted that the above-mentioned constant temperature does not mean that the temperature is absolutely constant; it fluctuates within a certain range, and in principle, the temperature fluctuation is kept within the range that is acceptable to the user.

[0164] For different rooms within the same heat exchange system, users may have different cooling and heating needs. When the heat exchange device 4 is equipped with a first heat exchange terminal 41 and a second heat exchange terminal 42, the cooling and heating of each room can be controlled independently. For example, for the user in the first room who has cooling needs, the air outlet of the first heat exchange terminal 41 can be controlled; for the user in the second room who has cooling needs, the air outlet of the second heat exchange terminal 42 can be controlled.

[0165] Furthermore, along the airflow direction generated by the fan, the first heat exchange end 41 is located upstream of the second heat exchange end 42.

[0166] In this embodiment, the two heat exchange terminals are arranged in an upstream-downstream relationship along the airflow direction generated by the fan. For example, the first heat exchange terminal 41, which is connected to the cooling heat source, can be located upstream of the second heat exchange terminal 42, which is connected to the heating heat source. After the airflow generated from the fan side is cooled down by passing through the first heat exchange terminal 41, it is heated up by passing through the second heat exchange terminal 42, thereby achieving "constant temperature" dehumidification.

[0167] When the first heat exchange terminal 41 is connected to the first heat source 1 and used as a cooling terminal, and the second heat exchange terminal 42 is connected to the second heat source 2 and used 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 the heat exchange area of ​​the second heat exchange terminal 42 in order to match the load.

[0168] Specifically, the heat exchange device 4 may include any one or a combination of the following: dual heat exchange terminals, dual heat exchange terminal fresh air handling unit.

[0169] Please refer to the following: Figure 7 and Figure 8 Specifically, the dual heat exchange terminals may include a first heat exchange terminal 41 and a second heat exchange terminal 42. The first heat exchange terminal 41, with a larger heat exchange area, may be equipped with three rows of heat exchange coils, while the second heat exchange terminal 42, with a smaller heat exchange area, may be equipped with one row of heat exchange coils. Of course, the number of coils in the first heat exchange terminal 41 and the second heat exchange terminal 42 is not limited to the example above and can be adapted to the actual load requirements.

[0170] Specifically, the first heat exchange terminal 41 is provided with a first inlet 411 and a first outlet 412, and is connected to the first heat source 1 through a pipeline; the second heat exchange terminal 42 is provided with a second inlet 421 and a second outlet 422, and is connected to the second heat source 2 through a pipeline. During constant temperature dehumidification, the air first passes through three rows of heat exchange coils for cooling and dehumidification, and then passes through the outermost row of heat exchange coils for heating to maintain a constant temperature.

[0171] It should be noted that in the description of this application, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this application, unless otherwise stated, "multiple" means two or more.

[0172] The various embodiments described in this specification are presented in a progressive manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0173] The above are merely a few embodiments of the present invention. Although the embodiments disclosed in the present invention are as described above, the content is only for the purpose of facilitating understanding of the present invention and is not intended to limit the present invention. Any person skilled in the art to which this invention pertains may make any modifications and changes in the form and details of the embodiments without departing from the spirit and scope disclosed in the present invention. However, the patent protection scope of the present invention shall still be determined by the scope defined in the appended claims.

Claims

1. A dehumidification control method for a heat exchange system, characterized in that, The heat exchange system includes: A heat exchange device is provided with a first heat exchange terminal and a second heat exchange terminal, wherein the first heat exchange terminal and the second heat exchange terminal are integrated in the same heat exchange device, and the heat exchange device is a dual heat exchange terminal. A heat pump and a gas combustion device, wherein the heat pump is provided with a first outlet and a first return outlet, the first heat exchange terminal is provided with a first inlet and a first outlet, and a first outlet pipe is provided between the first outlet and the first inlet; a first return pipe is provided between the first return outlet and the first outlet; the gas combustion device is provided with a second outlet and a second return outlet, the second heat exchange terminal is provided with a second inlet and a second outlet, a second outlet pipe is provided between the second outlet and the second inlet, and a second return pipe is provided between the second outlet and the second return outlet; A first connecting pipe connects the second water outlet pipe to the first water outlet pipe, and a second connecting pipe connects the second water return pipe to the first water outlet pipe; or, a first connecting pipe connects the second water outlet pipe to the first water return pipe, and a second connecting pipe connects the second water return pipe to the first water return pipe; or, a first connecting pipe connects the second water outlet pipe to the first water outlet pipe, and a second connecting pipe connects the second water return pipe to the first water return pipe. The heat exchange system further includes a flow control device. The second connecting pipe is connected to the second return water pipe at a first connection position, and the first connecting pipe is connected to the second outlet water pipe at a second connection position. The flow control device is located at the first connection position, or the flow control device is located in the second connecting pipe and the pipeline between the first connection position and the second outlet, or the flow control device is located at the second connection position, or the flow control device is located in the first connecting pipe and the pipeline between the second connection position and the second inlet. The dehumidification control method includes: Obtain the indoor temperature; When the difference between the acquired temperature and the preset target temperature is greater than the first preset difference, the heat pump is controlled to be in a cooling state, and the flow control device is controlled to connect the heat pump to both the first heat exchange terminal and the second heat exchange terminal. Obtain the humidity of the indoor environment; When the acquired temperature meets the preset temperature condition and the acquired humidity is greater than the preset target humidity, the flow control device is controlled to connect the heat pump in the cooling state to the first heat exchange terminal to provide cold water to the first heat exchange terminal, and to connect the gas combustion device in the heating state to the second heat exchange terminal to provide hot water to the second heat exchange terminal. And / or, Obtain the indoor temperature; When the difference between the obtained temperature and the preset target temperature is greater than the first preset difference, the heat pump and the gas combustion device are both controlled to be in heating mode, and the flow control device is controlled to enable the heat pump and the gas combustion device to be connected to the same heat exchange terminal through pipelines. Obtain the humidity of the indoor environment; When the acquired temperature meets the preset temperature condition and the acquired humidity is greater than the preset target humidity, the flow control device is controlled to connect the heat pump in the cooling state to the first heat exchange terminal to provide cold water to the first heat exchange terminal, and to connect the gas combustion device in the heating state to the second heat exchange terminal to provide hot water to the second heat exchange terminal.

2. The dehumidification control method as described in claim 1, characterized in that, The preset temperature conditions include: the absolute value of the difference between the obtained temperature and the preset target temperature is less than or equal to a first preset difference, or the absolute value of the difference between the obtained temperature and the preset target temperature is greater than or equal to a second preset difference.

3. The dehumidification control method as described in claim 1, characterized in that, The dehumidification control method further includes: controlling both the heat pump and the gas combustion device to be in a heating state, wherein the heat pump is connected to the first heat exchange terminal through a pipeline, and the gas combustion device is connected to the second heat exchange terminal.

4. The dehumidification control method as described in claim 2, characterized in that, The dehumidification control method further includes: when the difference between the acquired temperature and the preset target temperature is greater than a first preset difference, controlling the heat pump to be in a cooling state, wherein the heat pump is connected to the first heat exchange terminal or the second heat exchange terminal through a pipeline.

5. The dehumidification control method as described in claim 4, characterized in that, The heat pump controls both the heat pump and the gas combustion device to be in a cooling state. The heat pump is connected to the first heat exchange terminal through a pipeline, and the gas combustion device is connected to the second heat exchange terminal.

6. A controller, characterized in that, The controller is configured to perform the dehumidification control method as described in any one of claims 1 to 5.

7. A heat exchange system, characterized in that, include: The controller as described in claim 6.

8. The heat exchange system as described in claim 7, characterized in that, The flow control device communicates with the controller, including a first state and a second state. When the flow control device is in the first state, the heat pump and the gas combustion device are connected to the first heat exchange terminal. When the flow control device is in the second state, the heat pump and the gas combustion device are connected to the first heat exchange terminal and the second heat exchange terminal, respectively.

9. The heat exchange system as described in claim 7, characterized in that, The second outlet is connected to the first outlet, and the first return water pipe and the second return water pipe share a portion of the same space.

10. The heat exchange system as described in claim 7, characterized in that, The heat exchange device is equipped with a fan.

11. The heat exchange system as described in claim 10, characterized in that, Along the direction of airflow generated by the fan, the first heat exchange end is located upstream of the second heat exchange end.

12. The heat exchange system as described in claim 11, characterized in that, The heat exchange area of ​​the first heat exchange terminal is larger than that of the second heat exchange terminal.

13. The heat exchange system as described in claim 8, characterized in that, The flow control device includes a three-way valve and / or a solenoid switching valve and / or a two-way valve.

14. The heat exchange system as described in claim 7, characterized in that, The heat exchange system also includes temperature and / or humidity sensors for communicating with the controller.

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