CN118089147A

CN118089147A - Anti-condensation control method, device, equipment and storage medium

Info

Publication number: CN118089147A
Application number: CN202211469373.4A
Authority: CN
Inventors: 黄剑云; 徐振坤; 钟名亮; 李金波; 黄招彬; 高卓贤
Original assignee: GD Midea Air Conditioning Equipment Co Ltd
Current assignee: GD Midea Air Conditioning Equipment Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2024-05-28

Abstract

The invention belongs to the technical field of heat pump units, and discloses an anti-condensation control method, device, equipment and storage medium. The method comprises the following steps: acquiring environment information acquired by an environment information acquisition device corresponding to a current area and water temperature information of the heat pump water chilling unit; determining a water temperature anti-condensation risk value of the current area according to the environmental information and the water temperature information; and controlling the temperature of fresh air dehumidifying equipment in the current area and/or the temperature of the heat exchange tail end in the current area according to the water temperature condensation prevention risk value. The condensation risk is determined through the environment information and the water temperature information so as to estimate whether the water loop in the room can generate condensation, and the fresh air dehumidification equipment is matched to control the humidity of the room so as to ensure that the water loop cannot be condensed.

Description

Anti-condensation control method, device, equipment and storage medium

Technical Field

The present invention relates to the field of heat pump units, and in particular, to a method, an apparatus, a device, and a storage medium for controlling condensation prevention.

Background

In the prior art, when the heat pump water chiller is independently used for radiation refrigeration, in order to reduce radiation surface condensation, the target water temperature is generally set to be higher, however, the target water temperature of the heat pump water chiller is set to be higher, the temperature reduction is slower when the room load is larger, even the room temperature can not reach the user demand, and the comfort is poor, so that the reduction of radiation surface condensation becomes a technical problem to be solved urgently on the premise that the work of the heat pump water chiller is not influenced.

The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.

Disclosure of Invention

The invention mainly aims to provide an anti-condensation control method, device, equipment and storage medium, and aims to solve the technical problem of how to reduce condensation on the surface of clothing in the prior art.

In order to achieve the above object, the present invention provides an anti-condensation control method, comprising the steps of:

Acquiring environment information acquired by an environment information acquisition device corresponding to a current area and water temperature information of the heat pump water chilling unit;

Determining a water temperature anti-condensation risk value of the current area according to the environmental information and the water temperature information;

And controlling the temperature of fresh air dehumidifying equipment in the current area and/or the temperature of the heat exchange tail end in the current area according to the water temperature condensation prevention risk value.

Optionally, the determining the water temperature condensation prevention risk value of the current area according to the environmental information and the water temperature information includes:

Determining the dew point temperature of the current area according to the environmental information;

and determining a water temperature anti-condensation risk value of the current region according to the water temperature, the dew point temperature of the current region and the preset water temperature anti-condensation temperature difference.

Optionally, the determining the dew point temperature of the current area according to the environmental information includes:

Determining the temperature of the current area and the humidity of the current area according to the environmental information;

And determining the dew point temperature of the current area according to the temperature of the current area and the humidity of the current area.

Optionally, the controlling the temperature of the fresh air dehumidifying device in the current area and/or the heat exchange end in the current area according to the water temperature condensation preventing risk value includes:

recording the condensation risk duration when the water temperature condensation prevention risk value is smaller than a first risk threshold value;

and controlling the fresh air dehumidifying equipment to start a dehumidifying function according to the condensation risk duration.

Optionally, the controlling the fresh air dehumidifying device to start the dehumidifying function according to the condensation risk duration includes:

when the condensation risk time is longer than a preset time, controlling the fresh air dehumidification equipment to start a dehumidification function; or (b)

And when the condensation risk time is longer than the preset time and the dew point temperature of the current area is determined to be greater than the preset dew point temperature according to the environmental information, controlling the fresh air dehumidification equipment to start a dehumidification function.

Optionally, after recording the condensation risk duration, the method further includes:

Determining the change trend of the water temperature anti-condensation risk value according to the water temperature anti-condensation risk value;

When the water temperature condensation prevention risk value is greater than or equal to a second risk threshold value and the change trend is rising, resetting the condensation risk duration;

when the water temperature condensation prevention risk value is greater than or equal to a third risk threshold value and the change trend is descending, resetting the condensation risk duration;

And when the water temperature condensation prevention risk value is greater than or equal to a second risk threshold value and the water temperature condensation prevention risk value is greater than or equal to a second risk threshold value for a second preset time threshold value, resetting the condensation risk time.

Optionally, after the controlling the fresh air dehumidifying device to start the dehumidifying function, the method further includes:

and when the water temperature condensation prevention risk value is greater than or equal to a second risk threshold value, controlling the fresh air dehumidification equipment to close a dehumidification function.

recording the dehumidification duration of the operation dehumidification function of the fresh air dehumidification equipment;

and when the dehumidification time is greater than or equal to a third preset time threshold and the water temperature condensation prevention risk value is less than or equal to a fourth risk threshold, controlling the heat exchange tail end of the current area to stop working.

Optionally, after the heat exchange end of the current area is controlled to stop working, the method further comprises:

and when the water temperature condensation prevention risk value is greater than or equal to a second risk threshold value, controlling the fresh air dehumidification equipment to close the dehumidification function, and controlling the heat exchange tail end of the current area to resume work.

In addition, in order to achieve the above object, the present invention also provides an anti-condensation control device, comprising:

The acquisition module is used for acquiring the environmental information acquired by the environmental information acquisition device corresponding to the current area and the water temperature information of the heat pump water chilling unit;

The processing module is used for determining a water temperature anti-condensation risk value of the current area according to the environmental information and the water temperature information;

and the control module is used for controlling the temperature of the fresh air dehumidifying equipment in the current area and/or the temperature of the heat exchange tail end in the current area according to the water temperature condensation prevention risk value.

In addition, in order to achieve the above object, the present invention also proposes an anti-condensation control apparatus comprising: a memory, a processor, and an anti-condensation control program stored on the memory and executable on the processor, the anti-condensation control program configured to implement the steps of the anti-condensation control method as described above.

In addition, in order to achieve the above object, the present invention also proposes a storage medium having stored thereon an anti-condensation control program which, when executed by a processor, implements the steps of the anti-condensation control method as described above.

The method comprises the steps of acquiring environment information acquired by an environment information acquisition device corresponding to a current area and water temperature information of a heat pump water chilling unit; determining a water temperature anti-condensation risk value of the current area according to the environmental information and the water temperature information; and controlling the temperature of fresh air dehumidifying equipment in the current area and/or the temperature of the heat exchange tail end in the current area according to the water temperature condensation prevention risk value. The condensation risk is determined through the environment information and the water temperature information so as to estimate whether the water loop in the room can generate condensation, and the fresh air dehumidification equipment is matched to control the humidity of the room so as to ensure that the water loop cannot be condensed.

Drawings

FIG. 1 is a schematic diagram of the architecture of an anti-condensation control device of a hardware operating environment according to an embodiment of the present invention;

FIG. 2 is a schematic flow chart of a first embodiment of the anti-condensation control method of the present invention;

FIG. 3 is a schematic diagram of a system according to an embodiment of the anti-condensation control method of the present invention;

FIG. 4 is a flow chart of a second embodiment of the anti-condensation control method of the present invention;

Fig. 5 is a block diagram illustrating a first embodiment of the condensation prevention control apparatus according to the present invention.

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an anti-condensation control device in a hardware operating environment according to an embodiment of the present invention.

As shown in fig. 1, the anti-condensation control apparatus may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) Memory or a stable Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.

It will be appreciated by those skilled in the art that the configuration shown in fig. 1 is not limiting of the anti-condensation control apparatus and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.

As shown in fig. 1, an operating system, a network communication module, a user interface module, and an anti-condensation control program may be included in the memory 1005 as one type of storage medium.

In the anti-condensation control apparatus shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the anti-condensation control device of the present invention may be disposed in the anti-condensation control device, and the anti-condensation control device invokes the anti-condensation control program stored in the memory 1005 through the processor 1001 and executes the anti-condensation control method provided by the embodiment of the present invention.

An embodiment of the present invention provides an anti-condensation control method, referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of the anti-condensation control method of the present invention.

In this embodiment, the anti-condensation control method includes the following steps:

step S10: and acquiring the environmental information acquired by the environmental information acquisition device corresponding to the current area and the water temperature information of the heat pump water chilling unit.

It should be noted that the execution main body is an anti-condensation control terminal, and the anti-condensation control terminal can be an intelligent terminal arranged in a scene, can be arranged in a heat pump cold and hot water unit, and can be other equipment with the same or similar functions as the intelligent terminal.

It should be noted that, in the refrigeration process of the heat pump hot and cold water unit, the heat pump hot and cold water unit provides cold water for the room for cooling the room, but in the refrigeration process, due to the fact that the temperature of the heat exchange component or other components in the loop of the water supply is lower than that in the room, serious condensation may occur, and the condensation may cause serious consequences, for example: damage is caused to heat exchange ends of a heat pump hot and cold water unit in each room, wherein the heat exchange ends generally refer to person exchange components for refrigerating in the room, such as: the heat exchange coil, the capillary tube, the heat radiation plate and other components further have certain influence on the refrigerating effect, and even the condition that condensed water erodes furniture, floors and walls possibly occurs, so the embodiment provides linkage of the heat pump water chilling unit and the fresh air dehumidifying equipment, and the water loop in the room is always in a state of not being condensed through the fresh air dehumidifying equipment according to the environmental information in each room and the water temperature information in the water loop as judging parameters of the working of the fresh air dehumidifying equipment.

It can be understood that, as shown in fig. 3, the embodiment includes a heat pump cold and hot water unit, an environmental information collection device, and a fresh air dehumidifying device, where the environmental information collection devices are respectively disposed in corresponding rooms, the environmental information collection device is used for collecting environmental information of the corresponding rooms, each room is disposed in parallel on a water loop connected with the heat pump cold and hot water unit, and an output end of the environmental information collection device is connected with the fresh air dehumidifying device. All communication connection modes can be wired communication or wireless communication, and the current area is the area for selecting and describing the scheme in the embodiment, and the area can be one room or one space area, and the embodiment is not limited to the above.

It should be noted that, when the environmental information of the current area is collected by the environmental information collection device disposed in the current area, the environmental information refers to information affecting the condensation condition of the current area, which is generally temperature information of the current area and relative humidity information of the current area, or other parameters that may affect the condensation condition of the room, which is not limited in this embodiment, and the corresponding environmental information collection device is a device for collecting the environmental information, where the environmental information collection device is a temperature detection device and a relative humidity detection device when the environmental information is assumed to be the temperature information of the current area and the relative humidity information of the current area.

In a specific implementation, the water temperature information of the heat pump cold and hot water unit can be water supply temperature information, backwater temperature information or water tank temperature information, and as the water temperature change span is not very large in the whole water loop of the heat pump cold and hot water unit, each room is connected in parallel on the water loop, and the water temperature difference value of different rooms is not very large, only one point in the water loop can be selected as a water temperature sampling point, so that the deployment cost can be greatly saved; meanwhile, a sampling point can be set in each room to determine the water temperature of different rooms so as to achieve finer control, which is not limited in the embodiment.

Step S20: and determining a water temperature anti-condensation risk value of the current area according to the environment information and the water temperature information.

It should be noted that, according to the environmental information, the dew point temperature of the room may be determined, and according to the dew point temperature and the water temperature, it may be determined whether the water pipe or other heat exchange components of the water circuit may be condensed in the room, thereby determining the water temperature anti-condensation risk value.

In this embodiment, determining a dew point temperature of the current area according to the environmental information; and determining a water temperature anti-condensation risk value of the current region according to the water temperature, the dew point temperature of the current region and the preset water temperature anti-condensation temperature difference.

Specifically, according to the environmental information of the current area, the room dew point temperature tdew_rn of the current area can be determined, and then the water temperature anti-condensation risk value can be obtained by calculating according to the preset water temperature anti-condensation temperature difference delta T_ AntiDew and the water temperature TW of the water loop, wherein the calculation process is as follows: the preset water temperature anti-condensation temperature difference delta T_ AntiDew is the redundancy set by the condensation risk, the preset water temperature anti-condensation temperature difference delta T_ AntiDew is in the range of 0-10 ℃, preferably 5 ℃, and according to the above, the smaller the water temperature anti-condensation risk value d is, the larger the risk is.

In this embodiment, determining the temperature of the current area and the humidity of the current area according to the environmental information; and determining the dew point temperature of the current area according to the temperature of the current area and the humidity of the current area.

In a specific implementation, the corresponding dew point temperature tdew_rn can be calculated by the indoor air temperature t1_rn and the relative humidity h_rn, wherein the dew point refers to the dew point temperature in the current area, and since the temperature of the internal heat exchange component of the general refrigeration equipment is lower than the indoor temperature, there is still a risk of condensation on the water circuit in the case of no condensation in the indoor environment, and therefore the dew point temperature of the room needs to be calculated.

Step S30: and controlling the temperature of fresh air dehumidifying equipment in the current area and/or the temperature of the heat exchange tail end in the current area according to the water temperature condensation prevention risk value.

It should be noted that, according to the water temperature anti-condensation risk value, the risk of condensation of the related components of the water loop in the current area can be determined, and according to the risk, the fresh air dehumidification device in the current area or the water valve of the water loop in the current area can be controlled to prevent the condensation, for example: when the risk of condensation reaches a certain risk degree (in this embodiment, when the risk value of preventing condensation of water temperature is smaller than a set threshold value), the fresh air dehumidifying equipment is started to reduce the humidity setting in the room, and the water loop water valve is closed to stop refrigeration work until the indoor humidity reaches a certain value, so that condensation is avoided.

In this embodiment, when the fresh air dehumidifying device in the current area is in the dehumidifying function and the water temperature condensation preventing risk value is greater than or equal to the second risk threshold value, the fresh air dehumidifying device in the current area is controlled to exit the dehumidifying function.

It should be noted that, in order to save energy, the fresh air dehumidification device does not need to work continuously, so when the water temperature anti-condensation risk value is greater than or equal to the second risk threshold (i.e. when the current area condensation risk is lower), the dehumidification device is controlled to exit the dehumidification function, and if the water valve is closed, the water valve can be opened again to work continuously. The value range of the second risk threshold is 0-10, preferably 2, and when the water temperature anti-condensation risk value is large enough, the current condensation risk is smaller, and the dehumidifying function should be exited to save energy.

The embodiment obtains the environmental information of the current area and the water temperature information of the heat pump cold and hot water unit; determining a water temperature anti-condensation risk value according to the environmental information and the water temperature information; and controlling fresh air dehumidification equipment and/or the water valve in the current area according to the water temperature condensation prevention risk value. The condensation risk is determined through the environment information and the water temperature information so as to estimate whether the water loop in the room can generate condensation, and the fresh air dehumidification equipment is matched to control the humidity of the room so as to ensure that the water loop cannot be condensed.

Referring to fig. 4, fig. 4 is a schematic flow chart of a second embodiment of an anti-condensation control method according to the present invention.

Based on the above-mentioned first embodiment, the anti-condensation control method of this embodiment further includes, before the step S10:

step S31: and recording the condensation risk duration when the water temperature anti-condensation risk value is smaller than a first risk threshold value.

It should be noted that, the change condition of the condensation risk can be determined according to the water temperature anti-condensation risk value, the time that the water temperature anti-condensation risk value exists in the condensation risk can be further determined according to the change condition of the condensation risk, and the time of the condensation risk needs to be determined because the condensation process is not completed instantaneously, so that if the water temperature and the room environment information have instantaneous changes, fresh air dehumidifying equipment can be started, so that the fresh air dehumidifying equipment can be prevented from being started and stopped frequently, the condensation removing mechanism can be controlled according to the time of the condensation risk, further misjudgment is very easy to occur only according to the instantaneous room environment information and the water temperature, and therefore, the risk can be judged according to the combination time, because the longer the temperature in the water loop is less than the dew point temperature, the higher the risk of condensation is.

In this embodiment, when the water temperature anti-condensation risk value is smaller than a first risk threshold value, determining a first time node; determining a second time node when the water temperature anti-condensation risk value is in an ascending trend and the water temperature anti-condensation risk value is larger than a second risk threshold value; determining a second time node when the water temperature anti-condensation risk value is in a descending trend and is larger than a third risk threshold value, wherein the third risk threshold value is larger than the second risk threshold value; when the target duration that the water temperature condensation prevention risk value is greater than or equal to the second risk threshold value is a second preset time threshold value, determining a second time node; and determining the condensation risk duration according to the first time node and the second time node.

In this embodiment, when the condensation risk time is greater than or equal to a third preset time threshold, the water valve of the current area is controlled to be closed.

It can be understood that the condensation risk duration can be recorded through a timer, when the water temperature anti-condensation risk value is smaller than the first risk threshold value, the first time node is determined to be a starting point for recording the condensation risk duration, the second time node is taken as an important point, and the time between the first time node and the second time node is recorded as the condensation risk duration.

In a specific implementation, the embodiment provides a control method for preventing condensation of a preferable radiation system according to water temperature, which comprises the following steps: in the refrigeration mode, the corresponding dew point temperature Tdew_Rn is calculated through the indoor air temperature T1_Rn and the relative humidity h_Rn, the corresponding target dew point temperature TdewH is calculated through the indoor set temperature Ts_Rn and the indoor relative humidity set risk value H, the water temperature anti-condensation risk value d is calculated through the water temperature and the preset anti-condensation temperature difference, when the d value is less than the first risk threshold value a and exceeds T1 time (the condensation risk duration) and the indoor dew point temperature is greater than the target dew point temperature, the anti-condensation operation requirement is sent to the fresh air dehumidification device, the fresh air dehumidification device enters the strong dehumidification mode, the dehumidification capacity is increased, and the room air humidity is reduced. When d value < first risk threshold value a exceeds t2 time (third preset time threshold value) and d is less than or equal to 0, the risk of condensation is high, the indoor water valve is closed, and water supply to the room is stopped.

In addition, the indoor relative humidity set value H ranges from 20% to 95%, the set risk value can be divided into high, medium and low grades, and the set risk value is respectively set to Hh, hm and Hl, preferably hh=70%, hm=65%, hl=60%, and the high, medium and low grades correspond to the target dew point temperature TdewHh, tdewHm, tdewHl. More steps may also be subdivided. Water temperature anti-condensation risk value d=tw-tdew_rn+Δt_ AntiDew. Anti-condensation timing conditions: when d < a, a timer T_ AntiDew _Dew starts to count, when d is in an ascending trend, d is more than or equal to b, or d is in a descending trend, d is more than or equal to b+x, (b+x) is a third risk threshold, or d is more than or equal to b and the duration time T0, it is required to be noted that b is a second risk threshold, T0 is a second preset time threshold, and the timer T_ AntiDew _Dew is cleared, wherein the change trend of d can be obtained by statistics by combining a water temperature anti-condensation risk value d in a preset time range. When the indoor relative humidity setting risk value is not graded, after the fresh air dehumidifying equipment enters the anti-condensation operation (the dehumidifying function is started), if d is more than or equal to a second threshold value b, the fresh air dehumidifying equipment exits the anti-condensation operation (the dehumidifying function is closed); if d is more than or equal to the second threshold value b after the indoor water valve is closed (the heat exchange end stops working or the cooling supply to the heat exchange end is stopped), the anti-condensation operation is stopped, the fresh air dehumidification equipment is stopped from the anti-condensation operation, and the room water valve is opened to resume normal operation. When the indoor relative humidity is set to be in a risk value grading state, after the fresh air dehumidifying equipment enters the anti-condensation operation, if d is more than or equal to a second threshold b or d is more than or equal to a third threshold c, tdew_Rn is less than or equal to TdewHm or Tdew_Rn is less than or equal to TdewHl, and the fresh air dehumidifying equipment exits the anti-condensation operation; if d is more than or equal to the second threshold value b or d is more than or equal to c after the indoor water valve is closed, tdew_Rn is less than or equal to TdewHm or Tdew_Rn is less than or equal to TdewHl, the indoor water valve is withdrawn from the condensation prevention operation, the fresh air dehumidification equipment is withdrawn from the condensation prevention operation, the room water valve is opened, and the normal operation of c is recovered to be the fourth risk threshold value. When a plurality of rooms have refrigeration demands, the dew point temperature of each room is correspondingly calculated, and the target dew point temperature is the minimum value. The preset water temperature condensation prevention temperature difference delta T_ AntiDew is in the range of 0-10 ℃, preferably 5 ℃. The water temperature can be water supply temperature, backwater temperature, water tank temperature, etc. The value of the anti-condensation risk threshold a, b, c, x is in the range of 0 to 10, a is equal to or less than b is equal to or less than c, preferably a=1, b=2, c=4, and x=0.5. The values of the anti-condensation timing time duration thresholds t0, t1 and t2 are in the range of 0 to 120 minutes, t1< t2, preferably t0=2 minutes, t1=10 minutes and t2=50 minutes.

It should be noted that, according to the above description, the fresh air dehumidifying device is controlled to start the dehumidifying function, and besides the condensation risk duration, a judging standard can be added: and controlling the dehumidification equipment to start a dehumidification function when the set target dew point temperature is greater than or equal to a first preset time threshold and the dew point temperature of the current area is greater than the preset target dew point temperature, and judging the condensation risk through double parameters so as to reduce the probability of misjudgment.

Further, the preset target dew point temperature TdewH corresponding to the current area can be calculated through the indoor set temperature ts_rn and the indoor set relative humidity H, the indoor set temperature ts_rn and the indoor set relative humidity H can be calibrated before the departure, wherein the value range of the indoor set relative humidity H is 20% -95%, the set risk value can be divided into high, medium and low grades, and the values Hh, hm and Hl are respectively selected, preferably hh=70%, hm=65%, hl=60%, and the high, medium and low grades correspond to the target dew point temperature TdewHh, tdewHm, tdewHl. And more steps may be subdivided. Different gears mean different condensation risks, further, when the preset target dew point temperature is larger, the duration of the condensation risk required for starting the fresh air dehumidifying equipment is shorter, for example: when the preset target dew point temperature is TdewHh, the first preset time threshold may be 2 minutes; when the preset target dew point temperature is TdewHm minutes, the first preset time threshold may be 5 minutes, and when the preset target dew point temperature is TdewHl, the fresh air dehumidification device is refused to be started.

Step S32: and controlling the fresh air dehumidifying equipment to start a dehumidifying function according to the condensation risk duration.

In the specific implementation, whether the heat exchange terminal has a larger condensation risk can be accurately controlled according to the condensation risk duration, and when the condensation risk is enough for a long time, the fresh air dehumidification equipment can be controlled to start the dehumidification function to adjust the humidity in the area.

When the condensation risk time is longer than a preset time, controlling the fresh air dehumidification equipment to start a dehumidification function; or when the condensation risk time is longer than the preset time, and the dew point temperature of the current area is determined to be greater than the preset dew point temperature according to the environmental information, controlling the fresh air dehumidification equipment to start a dehumidification function.

It should be noted that, when the condensation risk is sufficiently long, the fresh air dehumidifying device can be controlled to start the dehumidifying function to adjust the humidity in the area, and on this basis, the dew point temperature of the current area can be determined according to the environmental information, for example: and calculating the dew point temperature of the current area according to the temperature and humidity of the current area, and when the dew point temperature of the current area is greater than the preset dew point temperature, indicating that the current condensation risk is far greater than the expected dew point temperature. The preset dew point temperature may be a preset value, or may be a dew point temperature calculated according to a set temperature and a set humidity.

In this embodiment, a trend of the water temperature anti-condensation risk value is determined according to the water temperature anti-condensation risk value; when the water temperature condensation prevention risk value is greater than or equal to a second risk threshold value and the change trend is rising, resetting the condensation risk duration; when the water temperature condensation prevention risk value is greater than or equal to a third risk threshold value and the change trend is descending, resetting the condensation risk duration; and when the water temperature condensation prevention risk value is greater than or equal to a second risk threshold value and the water temperature condensation prevention risk value is greater than or equal to a second risk threshold value for a second preset time threshold value, resetting the condensation risk time.

In a specific implementation, a condensation risk duration zero clearing mechanism can be set to reset the condensation risk duration, and misjudgment of the system on the condensation risk is further avoided through the multi-condition condensation risk zero clearing mechanism.

The embodiment provides a control method for preventing condensation of a preferable radiation system according to water temperature, which comprises the following steps: in the refrigeration mode, the corresponding dew point temperature Tdew_Rn is calculated through the indoor air temperature T1_Rn and the relative humidity h_Rn, the corresponding target dew point temperature TdewH is calculated through the indoor set temperature Ts_Rn and the indoor relative humidity set value H, the water temperature condensation prevention risk value d is calculated through detecting the water temperature (radiation surface), when the d value is smaller than the first risk threshold value a and exceeds the first preset time threshold value T1 and the indoor dew point temperature is larger than the target dew point temperature, the condensation prevention operation requirement is sent to the fresh air dehumidifier, and the fresh air dehumidifier enters the strong dehumidification mode, so that the dehumidification capacity is increased, and the room air humidity is reduced.

It should be noted that, when the time of existence of the condensation risk reaches or exceeds the first preset time threshold value, it proves that the risk of condensation of related components in the water loop is high enough, the dehumidification device should be controlled to start the dehumidification function so as to reduce the humidity in the air in the current area, so as to ensure that the water temperature condensation prevention risk value rises to reduce the condensation risk, and when the water temperature condensation prevention risk value is high enough, the fresh air dehumidification device can be closed and/or the water valve can be opened to end the condensation prevention work.

In this embodiment, the following preferred implementation scheme is proposed: the linkage application system of the heat pump water chilling unit and the fresh air dehumidification equipment is shown in fig. 3, and the heat pump water chilling unit provides cold water for a room for cooling the room; fresh air dehumidification equipment provides fresh air, temperature and humidity control and the like for a room. Further, when the indoor relative humidity set risk value is not graded, in a refrigeration mode, the corresponding dew point temperature is calculated to be 19.5 ℃ through the indoor air temperature of 28 ℃ and the relative humidity of 60%, the corresponding target dew point temperature is calculated to be 14.8 ℃ through the indoor set temperature of 26 ℃ and the indoor relative humidity set risk value of 50%, the water temperature condensation prevention risk value d=13-19.5+5= -1.5 is calculated, the d value is smaller than 1, the indoor dew point temperature is larger than the target dew point temperature by 14.8 ℃, and when the indoor dew point temperature exceeds 10 minutes, the condensation prevention operation requirement is sent to fresh air dehumidifying equipment, the fresh air dehumidifying equipment enters a strong dehumidification mode, the dehumidification capacity is increased, and the air humidity of a room is reduced. If the time exceeds 50 minutes and d is less than or equal to 0, the indoor water valve is closed, and the water supply to the room is stopped. When fresh air dehumidifying equipment enters anti-condensation operation, if the indoor temperature is 27 ℃, the relative humidity is reduced to 50%, and the dew point is 15.7 ℃, d=13-15.7+5=2.3, d is more than or equal to 2, and the fresh air dehumidifying equipment exits the anti-condensation operation; if d is more than or equal to 2 after the indoor water valve is closed, the anti-condensation operation is stopped, the fresh air dehumidifying equipment is stopped from being stopped from condensation, and the room water valve is opened to resume normal operation. When the risk value of indoor relative humidity is set in a step, for example, in a high step, a medium step and a low step, the values hh=70%, hm=65% and hl=60% are respectively taken. In the refrigeration mode, the corresponding dew point temperature is calculated by 28 ℃ and 60% of relative humidity, the corresponding target dew point temperature TdewH =14.8 ℃ is calculated by 26 ℃ and 50% of indoor relative humidity, the corresponding risk target dew point temperature TdewHh =22.3 ℃ and TdewHm =20.1 ℃ and TdewHl =17.6 ℃ corresponding to the indoor relative humidity set risk value is calculated, the water temperature condensation prevention risk value d=13-19.5+5= -1.5, the d value is smaller than 1, the indoor dew point temperature is larger than the target dew point temperature 14.8 ℃, when the temperature exceeds 10 minutes, the condensation prevention operation requirement is sent to the fresh air dehumidification equipment, the fresh air dehumidification equipment enters a strong dehumidification mode, the dehumidification capacity is increased, and the room air humidity is reduced. If the time exceeds 50 minutes and d is less than or equal to 0, the indoor water valve is closed, and the water supply to the room is stopped. When fresh air dehumidifying equipment enters anti-condensation operation, if the indoor temperature is 27 ℃, the relative humidity is reduced to 50%, and the dew point is 15.7 ℃, d=13-15.7+5=2.3, d is more than or equal to 2, and the fresh air dehumidifying equipment exits the anti-condensation operation; if d is more than or equal to 2 after the indoor water valve is closed, the anti-condensation operation is stopped, the fresh air dehumidifying equipment is stopped from being stopped from condensation, and the room water valve is opened to resume normal operation.

In this embodiment, a dehumidification duration of the fresh air dehumidification device running a dehumidification function is recorded; and when the dehumidification time is greater than or equal to a third preset time threshold and the water temperature condensation prevention risk value is less than or equal to a fourth risk threshold, controlling the heat exchange tail end of the current area to stop working.

Further, if the condensation risk is still not improved after dehumidification, the heat exchange end should be stopped in order to protect the heat exchange end from condensation, for example: if the time exceeds 60 minutes and d is less than or equal to 0, the indoor water valve is closed, and the water supply to the room is stopped.

In this embodiment, when the water temperature condensation preventing risk value is greater than or equal to the second risk threshold, the fresh air dehumidifying device is controlled to close the dehumidifying function.

It may be appreciated that when the water temperature condensation prevention risk value is less than or equal to the second risk threshold, the fresh air dehumidifying device is controlled to close the dehumidifying function, for example: when the fresh air dehumidifier enters the condensation prevention operation, if the indoor temperature is 27 ℃, the relative humidity is reduced to 50%, the dew point is 15.7 ℃, d=18-15.7=2.3, d is more than or equal to 2, and the fresh air dehumidifier exits the condensation prevention operation.

In this embodiment, when the water temperature condensation preventing risk value is greater than or equal to the second risk threshold, the fresh air dehumidifying device is controlled to close the dehumidifying function, and the heat exchange end of the current area is controlled to resume operation.

In a specific implementation, when the water temperature condensation prevention risk value is greater than or equal to the second risk threshold, it is indicated that the condensation risk is smaller at this time, and condensation cannot occur when the current humidity is maintained, so that the heat exchange end recovery work of the current area can be controlled, for example: if d is more than or equal to 2 after the indoor water valve is closed, the anti-condensation operation is stopped, the fresh air dehumidifier is stopped from condensation prevention, and the room water valve is opened to resume normal operation.

In the embodiment, the condensation risk duration is determined according to the water temperature condensation prevention risk value; and when the condensation risk time is greater than or equal to a first preset time threshold, controlling the dehumidification equipment to start a dehumidification function. By introducing the time variable of the condensation risk duration, the condensation risk is comprehensively judged, the probability of misjudgment of the condensation risk is reduced, and the accuracy of the condensation risk judgment is improved.

In addition, the embodiment of the invention also provides a storage medium, wherein the storage medium stores an anti-condensation control program, and the anti-condensation control program realizes the steps of the anti-condensation control method when being executed by a processor.

Referring to fig. 5, fig. 5 is a block diagram illustrating a first embodiment of the condensation prevention control apparatus according to the present invention.

As shown in fig. 5, an anti-condensation control device according to an embodiment of the present invention includes:

the acquisition module 10 acquires the environmental information acquired by the environmental information acquisition device corresponding to the current area and the water temperature information of the heat pump water chilling unit;

A processing module 20, configured to determine a water temperature condensation prevention risk value of the current area according to the environmental information and the water temperature information;

and the control module 30 is used for controlling the temperature of the fresh air dehumidification equipment in the current area and/or the temperature of the heat exchange tail end in the current area according to the water temperature condensation prevention risk value.

It should be understood that the foregoing is illustrative only and is not limiting, and that in specific applications, those skilled in the art may set the invention as desired, and the invention is not limited thereto.

The acquiring module 10 of the present embodiment is configured to acquire environmental information acquired by an environmental information acquisition device corresponding to a current area, and acquire water temperature information of the heat pump water chiller; a processing module 20, configured to determine a water temperature condensation prevention risk value of the current area according to the environmental information and the water temperature information; and the control module 30 is used for controlling the temperature of the fresh air dehumidification equipment in the current area and/or the temperature of the heat exchange tail end in the current area according to the water temperature condensation prevention risk value. The condensation risk is determined through the environment information and the water temperature information so as to estimate whether the water loop in the room can generate condensation, and the fresh air dehumidification equipment is matched to control the humidity of the room so as to ensure that the water loop cannot be condensed.

It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.

In addition, technical details not described in detail in this embodiment may refer to the anti-condensation control method provided in any embodiment of the present invention, which is not described herein.

In an embodiment, the processing module 20 is further configured to determine a dew point temperature of the current area according to the environmental information;

In an embodiment, the processing module 20 is further configured to determine a temperature of the current area and a humidity of the current area according to the environmental information;

In an embodiment, the control module 30 is further configured to record a condensation risk duration when the water temperature anti-condensation risk value is less than a first risk threshold;

In an embodiment, the control module 30 is further configured to control the fresh air dehumidifying apparatus to start the dehumidifying function when the condensation risk time is longer than a preset time; or (b)

In an embodiment, the control module 30 is further configured to determine a trend of the water temperature anti-condensation risk value according to the water temperature anti-condensation risk value;

In an embodiment, the control module 30 is further configured to control the fresh air dehumidifying apparatus to turn off the dehumidifying function when the water temperature condensation preventing risk value is greater than or equal to a second risk threshold value.

In an embodiment, the control module 30 is further configured to record a dehumidification duration of the fresh air dehumidification device during a dehumidification function;

In an embodiment, the control module 30 is further configured to control the fresh air dehumidifying device to close the dehumidifying function and control the heat exchange end of the current area to resume operation when the water temperature condensation preventing risk value is greater than or equal to the second risk threshold.

Furthermore, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory)/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.

The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims

1. The condensation prevention control method is characterized by being applied to a control terminal, wherein the control terminal is arranged in a linkage control system, the linkage control system comprises a heat pump cold and hot water unit, an environment information acquisition device and fresh air dehumidification equipment, water loops connected with the heat pump cold and hot water unit are arranged in each area, and heat exchange terminals are respectively arranged on the water loops of each area;

The anti-condensation control method comprises the following steps:

2. The method of claim 1, wherein the determining a water temperature anti-condensation risk value for the current region from the environmental information and water temperature information comprises:

3. The method of claim 2, wherein said determining the dew point temperature of the current zone from the environmental information comprises:

4. The method according to claim 1, wherein controlling the temperature of the fresh air dehumidifying apparatus of the current area and/or the heat exchange end of the current area according to the water temperature condensation preventing risk value comprises:

5. The method of claim 4, wherein controlling the fresh air dehumidifying apparatus to turn on a dehumidifying function according to the condensation risk duration comprises:

6. The method of claim 4, further comprising, after recording the condensation risk duration:

7. The method of claim 4, wherein after controlling the fresh air dehumidifying apparatus to turn on a dehumidifying function, further comprising:

8. The method of claim 4, wherein after controlling the fresh air dehumidifying apparatus to turn on a dehumidifying function, further comprising:

9. The method of claim 8, further comprising, after controlling the heat exchange end of the current zone to cease operation:

10. An anti-condensation control device, characterized in that the anti-condensation control device comprises:

11. An anti-condensation control apparatus, the apparatus comprising: a memory, a processor, and an anti-condensation control program stored on the memory and executable on the processor, the anti-condensation control program configured to implement the steps of the anti-condensation control method according to any one of claims 1 to 9.

12. A storage medium having stored thereon an anti-condensation control program which, when executed by a processor, implements the steps of the anti-condensation control method according to any one of claims 1 to 9.