CN115200062B

CN115200062B - Heat exchange system, control method thereof and central controller

Info

Publication number: CN115200062B
Application number: CN202110398892.5A
Authority: CN
Inventors: 邱步; 井煜峰; 符慧
Original assignee: AO Smith China Water Heater Co Ltd
Current assignee: AO Smith China Water Heater Co Ltd
Priority date: 2021-04-14
Filing date: 2021-04-14
Publication date: 2023-08-11
Anticipated expiration: 2041-04-14
Also published as: CN115200062A

Abstract

The invention discloses a heat exchange system, a control method thereof and a central controller, wherein the control method of the heat exchange system comprises the following steps: acquiring a temperature parameter related to the heat exchange capacity of the heat exchanger; acquiring the temperature difference between the room temperature of the current indoor environment where the heat exchanger is located and the set target temperature; when the temperature parameter is not smaller than the first temperature and the temperature difference is in a first temperature difference interval, the working parameter of a heat source communicated with the heat exchanger is regulated so as to change the temperature parameter related to the heat exchange capacity of the heat exchanger, and at least the air outlet angle of the air outlet of the heat exchanger is regulated based on the changed temperature parameter. The heat exchange system, the control method thereof and the central controller provided by the invention can improve the uniformity of a room temperature field, reduce energy consumption and improve user comfort in the heating process.

Description

Heat exchange system, control method thereof and central controller

Technical Field

The invention relates to the technical field of heat exchange systems, in particular to a heat exchange system, a control method thereof and a central controller.

Background

At present, when heating equipment is adopted to heat in the market, in order to improve the heating speed, a wind disc is possibly utilized to perform wind outlet at the tail end of heat exchange. In the process of using the wind disc to perform wind outlet so as to rapidly raise the room temperature, the following problems may occur:

High-temperature wind directly blows users, so that the problem of poor user comfort is caused; the local temperature of the room temperature field is higher, and the local temperature is lower, namely the problem of nonuniform temperature field; the intelligent regulation level of heating equipment is still to be further improved.

Disclosure of Invention

In order to overcome at least one defect in the prior art, the technical problem to be solved by the embodiment of the invention is to provide a heat exchange system, a control method thereof and a central controller, which can improve the uniformity of a room temperature field, reduce energy consumption and improve user comfort in a heating process.

The specific technical scheme of the embodiment of the invention comprises the following steps:

a control method of a heat exchange system, the control method of the heat exchange system comprising:

acquiring a temperature parameter related to the heat exchange capacity of the heat exchanger;

acquiring the temperature difference between the room temperature of the current indoor environment where the heat exchanger is located and the set target temperature;

when the temperature parameter is not smaller than the first temperature and the temperature difference is in a first temperature difference interval, the working parameter of a heat source communicated with the heat exchanger is regulated so as to change the temperature parameter related to the heat exchange capacity of the heat exchanger, and at least the air outlet angle of the air outlet of the heat exchanger is regulated based on the changed temperature parameter.

Further, the method further comprises: when the temperature parameter is in a first temperature interval which is smaller than the first temperature and not smaller than the second temperature, controlling the heat exchanger to operate at a first air outlet angle; and/or when the temperature parameter is in a second temperature interval which is smaller than the second temperature and not smaller than the third temperature, controlling the heat exchanger to operate at a second air outlet angle; and/or when the temperature parameter is in a third temperature interval smaller than a third temperature, controlling the air outlet angle of the heat exchanger to be within a third air outlet angle; and/or when the temperature parameter is in a fourth temperature interval which is not less than the first temperature, controlling the air outlet angle of the heat exchanger to be within a third air outlet angle; the air outlet angles corresponding to the first air outlet angle, the second air outlet angle and the third air outlet angle are not identical.

Further, the method further comprises: judging whether the room temperature is matched with the target temperature; if the temperature difference is not matched with the preset temperature gradient, adjusting the working parameters of the heat source according to the temperature difference section where the temperature difference is located, controlling the temperature parameters to be reduced by preset temperature gradients, and correspondingly adjusting and controlling the air outlet angle of the heat exchanger according to the current temperature parameters when the temperature parameters are reduced by one preset temperature gradient.

Further, when the temperature difference is in a first temperature difference interval, and when the temperature parameter is reduced from the fourth temperature interval to a first temperature interval by a preset temperature gradient, controlling the heat exchanger to operate at the first air outlet angle; when the temperature difference is in a second temperature difference interval, and when the temperature parameter is reduced from the first temperature interval to a second temperature interval by a preset temperature gradient, controlling the heat exchanger to operate at the second air outlet angle; the maximum value of the second temperature difference interval is not greater than the minimum value of the first temperature difference interval, and the air outlet angles corresponding to the first air outlet angle and the second air outlet angle are not identical.

Further, when the temperature difference is in the third temperature difference range, the working parameters of the heat source are adjusted so that the outlet water temperature of the heat source reaches the maximum value.

Further, the temperature parameter related to the heat exchange capacity of the heat exchanger comprises any one or a combination of the following: the water inlet temperature of the heat exchanger, the water outlet temperature of the heat exchanger, the air outlet temperature of the heat exchanger and the temperature of the heat exchanger.

Further, the first air outlet angle is provided with a first air outlet angle range; the second air outlet angle is provided with a second air outlet angle range; the second air outlet angle range is partially overlapped with the first air outlet angle range, and the maximum value of the first air outlet angle range is larger than the maximum value of the second air outlet angle range; or the second air outlet angle range is completely misaligned with the first air outlet angle range.

Further, the third air outlet angle is provided with a third air outlet angle range, and the minimum value of the third air outlet angle range is greater than the maximum value of the second air outlet angle range and partially coincides with the first air outlet angle range.

Further, the heat exchanger is a wind disc provided with an electric louver, the first air outlet angle range comprises a first sub-angle range and a second sub-angle range, the maximum value of the first sub-angle range is smaller than or equal to the minimum value of the second sub-angle range, and the wind swinging speed of the louver in the first sub-angle range is smaller than the wind swinging speed in the second sub-angle range; and/or the second air outlet angle range comprises a third sub-angle range and a fourth sub-angle range, the maximum value of the third sub-angle range is smaller than or equal to the minimum value of the fourth sub-angle range, and the air swinging speed of the louver in the third sub-angle range is smaller than the air swinging speed in the fourth sub-angle range.

Further, when the shutter moves to the first sub-air outlet angle range, the shutter stays for a first time period; and/or, when the shutter moves to the third sub-air outlet angle range, staying for a second time period.

Further, the electric louver comprises a first louver, the first louver swings up and down in the first air outlet angle range, or the first louver swings up and down in the second air outlet angle range, or the first louver swings up and down in the third air outlet angle range.

Further, the electric louver comprises a second louver which swings transversely and leftwards.

A control method of a heat exchange system, the control method comprising:

when the temperature parameter is not smaller than the first temperature and the heat load required by the current indoor environment where the heat exchanger is located is in a preset heat load interval, the working parameter of a heat source communicated with the heat exchanger is adjusted so as to change the temperature parameter related to the heat exchange capacity of the heat exchanger, and at least the air outlet angle of the air outlet of the heat exchanger is adjusted based on the changed temperature parameter.

Further, the preset thermal load interval is multiple, and the control method includes: and according to the difference of the preset thermal load intervals where the thermal load is located, operating the heat source with different working parameters so that the temperature parameters are in different temperature intervals.

Further, when the temperature parameter is in a first temperature interval which is smaller than the first temperature and not smaller than the second temperature, controlling the heat exchanger to operate at a first air outlet angle; and/or the number of the groups of groups,

when the temperature parameter is in a second temperature interval which is smaller than the second temperature and not smaller than the third temperature, controlling the heat exchanger to operate at a second air outlet angle; and/or the number of the groups of groups,

when the temperature parameter is in a third temperature interval smaller than a third temperature, controlling the air outlet angle of the heat exchanger to be within a third air outlet angle; and/or the number of the groups of groups,

when the temperature parameter is in a fourth temperature interval which is not less than the first temperature, controlling the air outlet angle of the heat exchanger to be within a third air outlet angle;

the air outlet angles corresponding to the first air outlet angle, the second air outlet angle and the third air outlet angle are not identical.

Further, the central controller is configured to perform the control method as described above.

A heat exchange system comprising a central controller as described above, a first heat source in communication with the central controller, the first heat source in communication with a heat exchanger.

The heat exchange system comprises the central controller, a first heat source, a second heat source and a heat exchanger, wherein the first heat source, the second heat source and the heat exchanger can be communicated with the central controller, the first heat source is communicated with the heat exchanger through a water outlet pipeline and a water return pipeline, and the water outlet end and the water return end of the second heat source are arranged on the water outlet pipeline or the water return pipeline.

Further, a temperature detection device is arranged on the backwater side of the second heat source.

A central controller configured to perform the control method of the heat exchange system as described above.

A heating system comprising a central controller as described above, and first and second heat sources communicable with the central controller, heat exchange means communicable with at least the first heat source through a conduit.

The technical scheme of the application has the following remarkable beneficial effects:

according to the control method of the heat exchange system, in the heating stage, the heat source can be heated up efficiently and quickly, and in the process of heating up efficiently and quickly, the initial cold air and the high-temperature air after heating up quickly are prevented from directly blowing users by controlling the air outlet angle of the heat exchanger; when the temperature is raised for a period of time and the room temperature is close to the target temperature set by a user, the working parameters of the heat source are changed, so that the heat source can run with lower energy consumption, the water supply temperature to the heat exchanger is reduced, the temperature parameters related to the heat exchange capacity of the heat exchanger are adjusted (generally reduced), and based on the changed temperature parameters, at least the air outlet angle of the heat exchanger is adjusted, so that the parameters such as the air outlet angle of the heat exchanger can be matched with the requirements of different stages of the user, and the use experience of the user is comprehensively improved.

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

Drawings

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, proportional sizes, and the like of the respective components in the drawings are merely illustrative for aiding in understanding the present application, and are not particularly limited. Those skilled in the art with access to the teachings of the present application can select a variety of possible shapes and scale sizes to practice the present application as the case may be.

FIG. 1 is a flow chart of steps of a method for controlling a heat exchange system according to one embodiment of the present application;

FIG. 2 is a flow chart of sub-steps of a method of controlling a heat exchange system provided in one embodiment of the present application;

FIG. 3 is a flow chart of steps of a method for controlling a heat exchange system according to yet another embodiment of the present application;

FIG. 4 is a schematic diagram of a heat exchange system according to an embodiment of the present application;

FIG. 5 is a schematic view of a heat exchange system according to another embodiment of the present application;

FIG. 6 is a graph showing the distribution of room temperature field during operation of a prior art heat exchange system;

fig. 7 is a graph showing a temperature field distribution obtained by the control method of the heat exchange system according to the present application when the temperature field distribution is the same as that of the room of fig. 6.

Reference numerals of the above drawings:

1. a first heat source;

2. a second heat source; 21. a first position; 22. a second position;

3. a first heat exchanger;

4. a second heat exchanger;

51. a water outlet pipeline; 52. and a water return pipeline.

Detailed Description

The technical solution of the present application will be described in detail below with reference to the attached drawings and specific embodiments, it should be understood that these embodiments are only for illustrating the present application and not for limiting the scope of the present application, and various modifications of equivalent forms of the present application will fall within the scope of the appended claims after reading the present application.

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

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the application 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.

The embodiment of the application provides a heat exchange system, a control method thereof and a central controller.

Wherein, this heat transfer system can include at least: a first heat source communicable with the central controller, the first heat source in communication with a heat exchanger. The first heat source is a heat source capable of supplying heat to the heat exchanger. In addition, the heat exchange system may further comprise a second heat source, i.e. the heat exchange system is a co-fed system comprising at least two heat sources. Wherein the second heat source can also be communicated with the central controller, and the second heat source is also a heat source capable of supplying heat to the heat exchanger. The central controller is stored with control logic of the control method of the heat exchange system, and when in use, the central controller communicates with the first heat source, the second heat source, the heat exchanger and the like, so that the first heat source, the second heat source and the heat exchanger are regulated and controlled.

Referring to fig. 1, the control method of the heat exchange system may include the following steps:

step S10: acquiring a temperature parameter related to the heat exchange capacity of the heat exchanger;

step S12: acquiring the temperature difference between the room temperature of the current indoor environment where the heat exchanger is located and the set target temperature;

step S14: when the temperature parameter is not smaller than the first temperature and the temperature difference is in a first temperature difference interval, the working parameter of a heat source communicated with the heat exchanger is regulated so as to change the temperature parameter related to the heat exchange capacity of the heat exchanger, and at least the air outlet angle of the air outlet of the heat exchanger is regulated based on the changed temperature parameter.

In the present specification, the temperature parameter related to the heat exchange capacity of the heat exchanger may be a parameter that can directly or indirectly indicate the temperature of the exhaust air of the heat exchanger. Specifically, the temperature parameter related to the heat exchange capability of the heat exchanger may include any one or a combination of the following: the water inlet temperature of the heat exchanger, the water outlet temperature of the heat exchanger, the air outlet temperature of the heat exchanger and the temperature of the heat exchanger.

For example, the temperature parameter related to the heat exchange capacity of the heat exchanger may be the inlet water temperature of the heat exchanger. The water inlet temperature of the heat exchanger is positively correlated with the air outlet temperature of the heat exchanger, namely, in general, the higher the water inlet temperature of the heat exchanger is, the higher the air outlet temperature of the heat exchanger is, and conversely, the lower the water inlet temperature of the heat exchanger is, the lower the air outlet temperature of the heat exchanger is. In contrast, the inlet water temperature of the heat exchanger is easier, more accurate and more convenient to obtain than the outlet air temperature. The water inlet temperature of the heat exchanger can be obtained by arranging a temperature sensor at the water inlet end of the heat exchanger, and also can be obtained by a temperature sensor preset in a pipeline communicated with the water inlet end of the heat exchanger. The outlet water temperature of the heat exchanger can be equivalently calculated according to the inlet water temperature and the heat exchange efficiency of the heat exchanger.

The temperature of the heat exchanger may vary depending on the particular form of the heat exchanger. Generally, a heat exchange pipeline is arranged in the heat exchanger, and the temperature of the heat exchanger can be determined through the pipe wall temperature of the heat exchange pipeline. Wherein, in the extending direction along the whole heat exchange tube, the tube wall of the heat exchange tube is at different positions, and the corresponding temperatures are different. The water temperature at the inlet of the heat exchange tube of the heat exchanger is consistent with the water inlet temperature of the heat exchanger, and the water temperature at the outlet of the heat exchange tube of the heat exchanger is consistent with the water outlet temperature of the heat exchanger. The air outlet temperature of the heat exchanger is the temperature directly supplied to the room, and can be directly used for representing the air outlet temperature of the current heat exchanger.

In this specification, the temperature parameter related to the heat exchange capability of the heat exchanger is mainly exemplified by the water inlet temperature of the heat exchanger, and other forms of the temperature parameter can be adaptively replaced by analogy with reference to the water inlet temperature, which is not described in detail herein.

In general, the thermal load is proportional to the temperature difference, and the thermal load can be expressed by a temperature difference parameter. In this specification, in order to obtain a thermal load required for the current indoor environment, the magnitude of the thermal load may be represented by obtaining a temperature difference between the room temperature of the current indoor environment in which the heat exchanger is located and a set target temperature. The room temperature of the current indoor environment can be obtained through a temperature sensor, and the set target temperature can be set according to user requirements.

When the acquired temperature parameter is not smaller than the first temperature and the temperature difference is in the first temperature difference range, the temperature parameter related to the heat exchange capacity of the heat exchanger can be changed by adjusting the working parameter of the heat source communicated with the heat exchanger, and at least the air outlet angle of the air outlet of the heat exchanger is adjusted based on the changed temperature parameter.

When the temperature parameter is not less than the first temperature, the temperature is relatively high; and when the temperature difference is in the first temperature difference interval, the current room temperature is increased to be relatively close to the target temperature set by a user, and at the moment, the working parameters of a heat source communicated with the heat exchanger are adjusted, so that the temperature parameters related to the heat exchange capacity of the heat exchanger are reduced. The operating parameters of the heat source may vary according to the specific form of the heat source. For example, when the heat source is a gas water heater (e.g., a wall-mounted boiler), the combustion load of the heat source can be reduced, and the adjustment of the flow rate and the flow amount of the fluid supplied from the first heat source 1 can be performed alone or in combination. Of course, the heat source may also be in the form of an air-source heat pump, or may also be in other forms, and the adjustment of the working parameters of the specific heat source is not described herein in detail.

In the present specification, if the room temperature of the current indoor environment has risen to a temperature closer to the target temperature set by the user, this means: the heat exchange capacity requirement of the current indoor environment is already close to that of a user. At this time, the main requirement of the user is changed from the heating requirement to the temperature field uniformity requirement.

In the heating stage, the heat source can heat up efficiently and quickly, and in the process of heating up efficiently and quickly, the initial cold air and the high-temperature air after heating up quickly are prevented from directly blowing users by controlling the air outlet angle of the heat exchanger; when the temperature is raised for a period of time and the room temperature is close to the target temperature set by a user, the working parameters of the heat source are changed, so that the heat source can run with lower energy consumption, the water supply temperature to the heat exchanger is reduced, the temperature parameters related to the heat exchange capacity of the heat exchanger are adjusted (generally reduced), and based on the changed temperature parameters, at least the air outlet angle of the heat exchanger is adjusted, so that the parameters such as the air outlet angle of the heat exchanger can be matched with the requirements of different stages of the user, and the use experience of the user is comprehensively improved.

For example, under normal conditions, the heat source operates at a higher heating capacity, the inlet water temperature of the heat exchanger is relatively higher, and the outlet air temperature of the heat exchanger is higher in a stage of rapidly increasing the room temperature, and at this time, in order to prevent high-temperature air from directly blowing a user, the angle of the outlet air fan of the heat exchanger can be controlled to deviate from the direction of the user; when the indoor temperature is greatly increased and the room temperature is close to the target temperature set by a user, the heat load of a heat source can be reduced, the outlet water temperature of the heat exchanger is reduced, and at the moment, in order to ensure the uniformity of an indoor environment temperature field, the outlet air angle of the heat exchanger can be changed, so that the temperature field is uniform. In the process of reducing the heat load of the heat source and homogenizing the temperature field, the heat source can be operated with reasonable operation parameters, the energy consumption of the whole machine is reduced, the uniformity of the temperature field can be controllably improved, and the comfort experience of a user is greatly improved.

When the temperature parameters are in different temperature ranges, the air outlet angles of the heat exchanger are different.

In some embodiments, when the temperature parameter is in a first temperature interval that is less than a first temperature and not less than a second temperature, controlling the heat exchanger to operate at a first air outlet angle; and/or the number of the groups of groups,

Specifically, taking the temperature parameter as an example of the water inlet temperature of the heat exchanger, when the water inlet temperature is in the lowest third temperature interval, for example, when the water inlet temperature is less than 30 ℃, the heat source may be at the initial starting stage at this time, the overall water supply temperature is lower, and the water temperature supplied to the heat exchanger, that is, the water inlet temperature of the heat exchanger is lower. For such a working condition, the air outlet angle of the heat exchanger can be controlled to be 75-90 degrees by combining with the installation position of the heat exchanger (for example, a common air outlet is arranged on a wall close to a suspended ceiling, hereinafter referred to as top mounting). When the air outlet angle of the heat exchanger is in the interval, low-temperature air can be prevented from directly blowing users, and comfort experience of the users is guaranteed. Specifically, when low-temperature air is exhausted, the air outlet direction may be at any angle of 75 ° to 90 ° with respect to the wall, for example, the air outlet direction may be at 90 ° with respect to the wall. The heat exchanger may furthermore be a fan disc provided with electric louvers, and the air outlet direction may furthermore be varied between 75 ° and 90 ° by means of louvers.

When the inlet water temperature is in the highest fourth temperature range, for example, the inlet water temperature is greater than or equal to 55 ℃, the air outlet angle of the heat exchanger can be controlled between 75 degrees and 90 degrees by combining the installation position of the heat exchanger (for example, a common air outlet is arranged on a wall close to a suspended ceiling). When the air outlet angle of the heat exchanger is in the interval, high-temperature air can be prevented from directly blowing users, and comfort experience of the users is guaranteed. Specifically, when the air is exhausted at a high temperature, the air-out direction may be at a fixed angle of any one of 75 ° to 90 ° with the wall, for example, the air-out direction may be at 90 ° with the wall. In particular, the heat exchanger may be a fan disc provided with electric louvers, and in addition, the air outlet direction may vary between 75 ° and 90 ° through the louvers.

When the inlet water temperature is in a relatively high first temperature interval, for example, the inlet water temperature is greater than or equal to 50 ℃ and less than 55 ℃, the top-mounted heat exchanger can control the air outlet angle of the heat exchanger to be between 35 and 90 degrees. In particular, the heat exchanger may be a fan disc provided with electric louvers, and in addition, the air outlet direction may vary between 35 ° and 90 ° through the louvers.

When the inlet water temperature is further reduced to the second temperature range in the first temperature range, for example, when the inlet water temperature is greater than or equal to 30 ℃ and less than 50 ℃, the air outlet angle of the heat exchanger can be controlled to be between 35 and 60 degrees in combination with the installation position of the heat exchanger (for example, a common air outlet is arranged on a wall close to a suspended ceiling). In particular, the heat exchanger may be a fan disc provided with electric louvers, and in addition, the air outlet direction may vary between 35 ° and 60 ° through the louvers.

It should be noted that, the above four working conditions can be established independently, the central controller can perform independent regulation and control, in addition, the working conditions can be mutually converted along with the change of temperature parameters, a composite working condition comprising at least two working conditions is formed, and at the moment, the central controller can flexibly combine the control steps.

In a specific scenario, a complete heating process after the heat exchange system is self-started is taken as an example for illustration.

When the heat exchange system is started, the inlet water temperature entering the heat exchanger is relatively low, for example, less than 30 ℃, and correspondingly, the outlet air temperature is low, so that the outlet air angle of the heat exchanger can be controlled to be between 75 and 90 degrees in order to prevent cold air from directly blowing users;

along with the operation of the heat exchange system, the inlet water temperature of the heat exchanger is gradually increased, and after the inlet water temperature enters the heat exchanger, the outlet air temperature can reach the temperature which is more suitable for a direct blowing user, for example, the temperature is between 30 and 50 ℃, and at the moment, in order to increase the temperature of the lower part, the outlet air angle of the heat exchanger can be controlled to be between 35 and 60 degrees;

with the continued operation of the heat exchange system, the inlet water temperature of the heat exchanger is raised again, for example, the inlet water temperature reaches 50-55 ℃, and at this time, in order to heat the upper temperature field, the air outlet angle of the heat exchanger can be controlled to be 35-90 degrees;

With the further operation of the heat exchange system, the water inlet temperature of the heat exchanger still continuously rises, for example, the water inlet temperature reaches more than 55 ℃, at the moment, the air outlet temperature of the heat exchanger is very high, and the air outlet angle of the heat exchanger can be controlled to be between 75 and 90 degrees in order to prevent high-temperature air from directly blowing users;

when the temperature difference between the room temperature of the current indoor environment where the heat exchanger is located and the set target temperature is obtained and is in a first temperature difference interval, the indoor heat demand is close to the target value, the working parameters of the heat source can be adjusted, the water inlet temperature of the heat exchanger is reduced, and at the moment, if the water inlet temperature of the heat exchanger is still higher, for example, the water inlet temperature is higher than 55 ℃, in order to prevent high-temperature wind from directly blowing users, the air outlet angle of the heat exchanger can be controlled to be between 75 degrees and 90 degrees;

when the heat source operates for a period of time with new working parameters, the water inlet temperature of the heat exchanger gradually drops, for example, the temperature is reduced to 50-55 ℃, and at this time, in order to achieve the purpose of uniform temperature field, the air outlet angle of the heat exchanger can be controlled to be 35-90 ℃ for wind sweeping;

when the inlet water temperature of the heat exchanger is further reduced, for example, the inlet water temperature is reduced to between 30 and 50 ℃, the outlet air angle of the heat exchanger can be controlled to be between 35 and 60 degrees so as to mainly raise the lower temperature; and (5) a uniform temperature field.

Referring to fig. 2, in one embodiment, after the heat source is started, the inlet water temperature of the heat exchanger is raised to a higher temperature at a faster speed, and then step S12 is performed: acquiring a temperature difference between the room temperature of the current indoor environment where the heat exchanger is located and a set target temperature; the control method may include the steps of:

s141: judging whether the room temperature is matched with the target temperature;

s142: if the temperature difference is not matched with the temperature difference range, adjusting the working parameters of the heat source, and controlling the temperature parameters to reduce in a preset temperature gradient;

s143: and when the temperature parameter is reduced by one preset temperature gradient, correspondingly regulating and controlling the air outlet angle of the heat exchanger according to the current temperature parameter.

In the present embodiment, after the room temperature and the target temperature are acquired, it is determined whether or not the two match by, for example, a difference value. It should be noted that, the room temperature may be obtained by setting a temperature probe at an air outlet of the heat exchanger, but a certain system error (such as an instrument error) may exist between the temperature obtained by the temperature probe and the actual room temperature, and if the temperature is within the system error range, the judgment result may still be that the room temperature is matched with the target temperature.

When the obtained room temperature is not equal to the target temperature or the difference value of the room temperature and the target temperature is not in the range of a systematic error (such as an instrument error), the working parameters of a heat source for supplying heat to the heat exchanger can be adjusted according to the temperature difference range where the temperature difference is located, so that the water inlet temperature of the heat exchanger is controlled to be reduced in a preset temperature gradient. After the water inlet temperature of the heat exchanger is reduced by a preset temperature gradient, judging a temperature interval in which the current water inlet temperature is located, and controlling the air outlet angle of the heat exchanger according to the temperature interval in which the water inlet temperature is located.

When the room temperature is not matched with the target temperature, the temperature parameter is reduced by a preset temperature gradient every time, and the air outlet angle of the heat exchanger is correspondingly regulated and controlled according to the current temperature parameter.

In one embodiment, the temperature difference interval may be multiple, and the air outlet angle of the corresponding heat exchanger is also multiple. Specifically, when the temperature difference is in a first temperature difference interval, and when the temperature parameter is reduced from the fourth temperature interval to a first temperature interval by a preset temperature gradient, the heat exchanger is controlled to operate at the first air outlet angle; and when the temperature difference is in a second temperature difference interval, and when the temperature parameter is reduced from the first temperature interval to a second temperature interval by a preset temperature gradient, controlling the heat exchanger to operate at the second air outlet angle.

In this embodiment, when the temperature difference is within the first temperature difference range, for example, within 3 ° -5 °, and when the inlet water temperature is reduced from the highest temperature range to the first temperature range by a preset temperature gradient, for example, when the inlet water temperature is within the range of 50 ° to 55 °, the air outlet of the heat exchanger may be controlled to operate at the first air outlet angle.

When the temperature difference is within a second temperature difference interval, for example, within 3 degrees, and when the inlet water temperature is reduced from the first temperature interval to a preset temperature gradient within a second temperature interval, for example, within an interval of 30-50 degrees, the air outlet of the heat exchanger can be controlled to operate at a second air outlet angle.

In this embodiment, the maximum value of the second temperature difference section is not greater than the minimum value of the first temperature difference section.

In addition, in one embodiment, when the temperature difference is in a third temperature difference interval, the working parameters of the heat source are adjusted so that the outlet water temperature of the heat source reaches the maximum value.

In this embodiment, it is considered that some special situations such as suddenly opening a window or a door occur in an indoor environment, and after a large amount of external cold air enters the room, the room temperature suddenly decreases, resulting in abrupt temperature difference. For example, when the temperature difference is detected to be in the third temperature range, for example, greater than 5 ℃, the working parameters of the heat source can be adjusted so that the outlet water temperature of the heat source reaches the maximum value, thereby rapidly increasing the room temperature.

In this specification, the air outlet angles corresponding to the first air outlet angle and the second air outlet angle are not exactly the same.

In one embodiment, the first outlet air angle is provided with a first outlet air angle range; the second air outlet angle is provided with a second air outlet angle range. The second air outlet angle range is partially overlapped with the first air outlet angle range, and the maximum value of the first air outlet angle range is larger than the maximum value of the second air outlet angle range; or the second air outlet angle range is completely misaligned with the first air outlet angle range.

Specifically, the first air outlet angle range may partially coincide with the second air outlet angle range, for example, the first air outlet angle range may be between 35 ° and 90 °, and the second air outlet angle range may be between 35 ° and 60 °. Wherein the second outlet angular range may be at a subset of the first outlet angular range, e.g., a lower boundary value of the second outlet angular range may be equal to or greater than a lower boundary value of the first outlet angle, and an upper boundary value of the second outlet angular range may be less than an upper boundary value of the first outlet angular range.

In addition, the lower boundary value of the second air outlet angle range may be smaller than the lower boundary value of the first air outlet angle range, and the upper boundary value of the second air outlet angle range may be smaller than the upper boundary value of the first air outlet angle range.

It should be noted that: considering that the air output of an outlet of a top-mounted heat exchanger needs to be ensured, the lower boundary value of the heat exchanger is not too small, otherwise the air output is influenced; the upper boundary value of the second air outlet angle cannot be too large, otherwise, the uniformity of the distribution of the temperature field is affected, and in a refinement aspect, the temperature of the indoor lower space is reduced because the hot air gradually moves upwards, so that the setting of the second air outlet angle is mainly used for slowing down the phenomenon of ensuring the temperature reduction of the indoor lower space and improving the uniformity of the indoor temperature field.

In one embodiment, the third air outlet angle is provided with a third air outlet angle range, and the minimum value of the third air outlet angle range is greater than the maximum value of the second air outlet angle range and partially coincides with the first air outlet angle range.

In this embodiment, the third air outlet angle is mainly set to prevent high-temperature air or low-temperature air from directly blowing the user when the high-temperature air or low-temperature air is exhausted, so that the comfort of the user is reduced. For a top-mounted heat exchanger, the third air outlet angle may be between 75 ° and 90 °. Because the first air outlet angle is mainly used for ensuring that the temperature of the indoor upper space is increased when the water inlet temperature is still relatively high, and meanwhile, the temperature of the indoor lower space is considered, the air outlet angle is set in a wider range. This second air-out angle is mainly to the temperature of intaking after further reducing, in order to promote indoor lower space temperature, simultaneously, guarantee heating efficiency and temperature distribution homogeneity, promotes user's comfort level, and this second air-out angle is in a relatively less temperature range. Specifically, the minimum value of the third air outlet angle range is greater than the maximum value of the second air outlet angle range, and is partially overlapped with the first air outlet angle range.

In one embodiment, the heat exchanger may be a wind tray provided with electrically powered louvers. The first air outlet angle range comprises a first sub-angle range and a second sub-angle range, the maximum value of the first sub-angle range is smaller than or equal to the minimum value of the second sub-angle range, and the air swinging speed of the louver in the first sub-angle range is smaller than the air swinging speed in the second sub-angle range; and/or the second air outlet angle range comprises a third sub-angle range and a fourth sub-angle range, the maximum value of the third sub-angle range is smaller than or equal to the minimum value of the fourth sub-angle range, and the air swinging speed of the louver in the third sub-angle range is smaller than the air swinging speed in the fourth sub-angle range.

In this embodiment, the heat exchanger may be in the form of a wind tray provided with electrically powered louvers. The air outlet of the air disc is provided with a rotatable shutter which can be controlled by the central controller to rotate.

The shutter can swing at a variable speed within a first air outlet angle range. For example, the first outlet air angle range may include a first sub-angle range and a second sub-angle range, the maximum value of the first sub-angle range being less than or equal to the second sub-angle range. For example, the first sub-angle range may be 35 ° to 60 °, and the second sub-angle range may be 60 ° to 90 °. The wind swinging speed of the shutter in the first sub-angle range is smaller than the wind swinging speed of the shutter in the second sub-angle range. Specifically, the wind swinging speed of the louver in the first sub-angle range can be 350-450MS/1 degrees, and the wind swinging speed of the louver in the second sub-angle range can be 150-250MS/1 degrees.

The louver can also swing at variable speeds in the second outlet angle range. For example, the second air outlet angle range includes a third sub-angle range and a fourth sub-angle range, and a maximum value of the third sub-angle range is less than or equal to a minimum value of the fourth sub-angle range. For example, the third sub-angle range may be 35 ° to 45 °, and the fourth sub-angle range may be 45 ° to 60 °. The wind swinging speed of the louver in the third sub-angle range is smaller than the wind swinging speed of the louver in the fourth sub-angle range. Specifically, the wind swinging speed of the louver in the third sub-angle range can be 350-450MS/1 degrees, and the wind swinging speed of the louver in the fourth sub-angle range can be 150-250MS/1 degrees.

In one embodiment, the shutter stays for a first period of time when moving to the first sub-outlet angular range; and/or, when the shutter moves to the third sub-air outlet angle range, staying for a second time period.

Specifically, when the shutter may move to the lower boundary value of the first sub-air outlet angle range, the shutter stays for a first time period, for example, the first time period may be 2 minutes. In addition, the shutter can stay for a second period of time when moving to the lower boundary value of the third sub-air outlet angle range. Wherein the first duration may be less than the second duration, for example, the second duration may be 5 minutes. The temperature of the lower temperature field is favorably increased by staying at the smaller angle position for a certain period of time, so that the uniformity of the whole indoor temperature field is better. When the second time period is longer than the first time period, the temperature of the lower space can be further raised when the room temperature approaches the target temperature, so that the temperature difference of the whole temperature field tends to be minimized.

In the present specification, the above-described swing mainly means up-and-down swing. In one embodiment, the electric louver includes a first louver that swings back and forth in the first air outlet angle range, or the first louver swings back and forth in the second air outlet angle range, or the first louver swings back and forth in the third air outlet angle range.

Besides the electric shutter capable of swinging up and down, the heat exchanger can be provided with the electric shutter capable of swinging left and right.

In one embodiment, the motorized louvers include a second louver that swings laterally and laterally.

In this embodiment, in order to further improve the uniformity of the temperature field in the indoor environment, the electric shutter may further be provided with a second shutter that can swing laterally left and right while the first shutter swings up and down.

Referring to fig. 3, in this specification, there is further provided a control method of a heat exchange system, where the control method includes:

step S11: acquiring a temperature parameter related to the heat exchange capacity of the heat exchanger;

step S13: when the temperature parameter is not smaller than the first temperature and the heat load required by the current indoor environment where the heat exchanger is located is in a preset heat load interval, the working parameter of a heat source communicated with the heat exchanger is adjusted so as to change the temperature parameter related to the heat exchange capacity of the heat exchanger, and at least the air outlet angle of the air outlet of the heat exchanger is adjusted based on the changed temperature parameter.

In this embodiment, the control method of the heat exchange system and the control method of the heat exchange system provided in the foregoing embodiment are based on the acquired temperature parameter, and the working parameter of the heat source is adjusted by combining the heat required by the current indoor environment where the heat exchanger is located to reach the target temperature set by the user, so that the working parameter can be intelligently matched with the heat required currently. When the working parameters of the heat source are regulated, the water temperature of the heat source supplied to the heat exchanger can be changed, namely, the temperature parameter (such as the water inlet temperature) of the heat exchanger is changed, and when the temperature parameter of the heat exchanger is changed, the air outlet angle of the air outlet of the heat exchanger is correspondingly regulated, so that the air outlet angle corresponds to the current temperature parameter. In the whole heat exchange system, each part and the corresponding core working parameters can realize self-adaption, so that the heat exchange system can be ensured to greatly improve the uniformity of a room temperature field, reduce energy consumption and improve user comfort in the heating process.

It should be noted that: in this embodiment, the core difference from the foregoing embodiment is that in step S13, the central controller determines the thermal load zone in which the heat exchanger is located according to the thermal load required by the current indoor environment in which the heat exchanger is located, and then correspondingly selects the operating parameters of the heat source according to the thermal load zone in which the heat exchanger is located. The method for obtaining the heat load required by the current indoor environment of the heat exchanger can be based on the temperature difference between the room temperature of the current indoor environment and the target temperature set by the user for equivalent calculation. In addition, in order to ensure the accuracy of the calculation of the heat load required by the current indoor environment in which the heat exchanger is located, other factors may be considered in combination, for example, the size of the space in which the indoor environment is located may be combined, and the like.

In one embodiment, the preset thermal load interval is a plurality of preset thermal load intervals, and the plurality of preset thermal load intervals may be stored in the central controller. The control method further includes: and according to the difference of the preset thermal load intervals where the thermal load is located, operating the heat source with different working parameters so that the temperature parameters are in different temperature intervals.

In this embodiment, the central controller may store a plurality of preset thermal load intervals, and each different thermal load interval correspondingly stores different operating parameters of the heat source. When the heat load required by the current indoor environment where the heat exchanger is located is acquired, the acquired heat load is compared with a plurality of preset heat load intervals, the corresponding preset heat load intervals are matched, and then the working parameters corresponding to the heat source are matched. The heat source can be controlled to work with the currently matched working parameters.

In one embodiment, the outlet angle of the heat exchanger is different when the temperature parameter is in different temperature intervals.

Specifically, the corresponding relation between the temperature parameter and the temperature interval as well as the air outlet angle of the heat exchanger is as follows:

when the temperature parameter is in a first temperature interval which is smaller than the first temperature and not smaller than the second temperature, controlling the heat exchanger to operate at a first air outlet angle; and/or the number of the groups of groups,

Specific matching relationships between the temperature parameter and the corresponding relationship between the temperature interval and the air outlet angle of the heat exchanger, numerical relationships, combination conditions between different conditions, and the like can be referred to the specific description of the above embodiments, and the present application is not repeated here.

The present application also provides a central controller capable of executing the control method provided in any one of the above embodiments.

Referring to fig. 4 and 5, a heat exchange system is further provided in the present specification, where the heat exchange system may include: the central controller, can with the first heat source 1 of central controller communication, second heat source 2 and first heat exchanger 3, first heat source 1 with first heat exchanger 3 is linked together through outlet pipe 51 and return water pipeline 52, the water outlet end and the return water end of second heat source 2 set up in outlet pipe 51 or return water pipeline 52.

The central controller may be independently disposed with the first heat source 1 and the second heat source 2, or may be integrally disposed with the first heat source 1 or the second heat source 2, which is not particularly limited herein. In use, the central controller can establish communication with the first heat source 1, the second heat source 2, the first heat exchanger 3, the electronic control elements in the pipeline, and the like.

The first heat source 1 is a heating apparatus capable of supplying heat. Specifically, the specific form of the first heat source 1 may be a heat pump water heater or an air conditioner. In the present specification, the first heat source 1 is mainly exemplified by a heat pump water heater (simply referred to as a heat pump), and other forms can be analogically referred to, and the present application will not be described herein.

The first heat source 1 is provided with an outlet and an inlet. The outlet is used as the water outlet end of the first heat source 1, and the inlet is used as the water return end of the first heat source 1. The lines comprise an outlet line 51 arranged between the outlet and the first heat exchanger 3 and a return line 52 arranged between the first heat exchanger 3 and the inlet. The first heat source 1 is communicated with the first heat exchanger 3 through a water outlet pipeline 51 and a water return pipeline 52.

The first heat exchanger 3 is used to transfer heat from the fluid to the air. The specific form of the first heat exchanger 3 may be a wind disc, but it is of course also possible to be other forms, and the present application is not limited in particular herein. In the present description, the first heat exchanger 3 is mainly illustrated in the form of a fan disc.

The second heat source 2 is also a heating device capable of supplying heat. Specifically, the second heat source 2 may be a gas combustion device or an electric heating device, and of course, the second heat source 2 may also be other heating devices capable of supplying heat, such as other new energy heating devices. When the second heat source 2 is a gas combustion device, it may be a wall-mounted boiler, a gas water heater, or the like. When the second heat source 2 is an electric heating device, it may be an electric water heater. In the present specification, the second heat source 2 is mainly exemplified as a wall-mounted boiler, and other forms can be analogically referred to, and the present application will not be described herein.

Furthermore, the heat exchange system may further include a second heat exchanger 4, the heat exchange efficiency of the first heat exchanger 3 is higher than the heat exchange efficiency of the second heat exchanger 4, and the installation position of the first heat exchanger 3 is higher than the second heat exchanger 4. Wherein, the second heat exchanger 4 can be any one or the combination of the following: floor heating, radiator, etc.

In the heat exchange system, the outlet water temperatures of the first heat source 1 and the second heat source 2 are different. Specifically, the outlet water temperature of the second heat source 2 is greater than the outlet water temperature of the first heat source 1; the second heat source 2 is a relatively high temperature heat source, and the first heat source 1 is a relatively low temperature heat source.

The connection position of the water outlet end of the second heat source 2 connected to the water outlet pipeline 51 is a first position 21, the connection position of the water return end of the second heat source 2 connected to the water outlet pipeline 51 is a second position 22, and the first position 21 is upstream of the second position 22 based on the flow direction of the water flow in the water outlet pipeline 51 (as shown in fig. 5); alternatively, the first location 21 is downstream of the second location 22 (as shown in fig. 4).

In some embodiments, to ensure that the fluid flowing from the second heat source 2 to the water outlet line 51 exchanges heat sufficiently with the fluid flowing from the first heat source 1 to the water outlet line 51, the line between the first location 21 and the second location 22 has an inner diameter D, a length L, and L is not less than 4D.

After the length of the pipeline between the first position 21 and the second position 22 is not smaller than 4 times of the inner diameter, the two fluids can be ensured to exchange heat sufficiently through experimental verification. Furthermore, in order to achieve the above object, the line between the first location 21 and the second location 22 may be provided with a spoiler. After the spoiler is arranged, the two fluids are more fully contacted, and the heat exchange effect is improved. In particular, the turbulence member may be in the form of a structure capable of changing the direction of fluid flow, or the turbulence member may be in the form of a mixing tank having a certain volume. In addition, the turbulence member may be in other forms capable of improving the heat exchange efficiency of the fluid, and the present application is not limited herein.

As shown in fig. 4, in one embodiment, the first location 21 is located downstream of the second location 22, and the return side of the second heat source 2 is provided with a one-way valve 41.

In the present embodiment, when the first position 21 is downstream of the second position 22, the water flowing out of the water outlet end of the second heat source 2 enters the water outlet pipe 51, and then returns to the second heat source 2 through the water outlet pipe 51 and the water inlet end. The overall direction of water flow from the second heat source 2 is opposite to the direction of water flow from the first heat source 1 to the water outlet line 51. The heat exchange of the two fluid flows is sufficient. The second heat source 2 with higher water outlet temperature can be used for fully heating the water in the water outlet pipeline 51, so that the water temperature flowing to the first heat exchanger 3 in the water outlet pipeline 51 is increased, and the quick heating function of the heating system is realized.

In the present embodiment, the water return side of the second heat source 2 may be provided with a check valve 41. For example, when the return water side of the second heat source 2 is provided with the check valve 41, it can prevent the circulating cooling water from directly entering the second heat source 2 from the return water side when the first heat source 1 (e.g., an air conditioner) is cooling. In heating, a circulation pump is provided in the second heat source 2, and water flowing out from the water outlet end of the circulation pump can return to the second heat source 2 from the water return end under the pumping pressure of the circulation pump.

In addition, the water return side of the second heat source 2 may be provided with a solenoid valve, which may communicate with a central controller, and the central controller may control the solenoid valve to be in a closed state when the first heat source 1 performs cooling, and to be in an open state when heating.

As shown in fig. 5, in one embodiment, the first location 21 is upstream of the second location 22, and the water return side of the second heat source 2 is provided with a temperature detecting device.

In this embodiment, when the first position 21 is located upstream of the second position 22, the water return side of the second heat source 2 may be provided with a temperature detecting device, through which the water temperature on the water return side of the second heat source 2 may be obtained, which is consistent with the water temperature entering the first heat exchanger 3, that is, the water inlet temperature entering the first heat exchanger 3 may be directly obtained through the temperature detecting device, without additionally providing a temperature detecting device, so as to obtain the water inlet temperature of the first heat exchanger 3.

The control method of the heat exchange system provided by the application is mainly used for solving various problems in the heating process of a scene of rapid heating of a high-temperature water inlet disc, and can be used for adjusting the working parameters of a heat source according to the heat supply required by the reaction of the temperature difference of the room temperature and the set target temperature when the control method is specifically applied, so that the water inlet temperature of the air disc is changed, the angle and other parameters of the air outlet of the air disc are controlled according to the current water inlet temperature of the air disc, and the uniformity of a room temperature field, the energy consumption and the user comfort can be improved in the whole operation process.

Referring to fig. 6 and fig. 7 in combination, in a specific application scenario, the applicant has performed experimental verification on the technical effects generated by the control method of the heat exchange system provided in the present specification, where the first heat source 1 is a heat pump, the second heat source 2 is a wall-mounted boiler, and the heat exchanger is a fan disc.

Fig. 6 is a graph showing the distribution of room temperature field during operation of a conventional heat exchange system. Wherein the abscissa represents the operation time length in minutes; the ordinate indicates the temperature at different locations in the room. In the figure, the temperature sensor is divided into an upper temperature curve, a middle temperature curve and a lower temperature curve according to different positions of a room, wherein the temperature detection position corresponding to the first temperature curve at the uppermost part is a temperature curve with the height of 2 meters, and the temperature detection position corresponding to the second temperature curve at the middle part is a temperature curve with the height of 1.3 meters; the third temperature curve at the lower part corresponds to a temperature curve with a temperature detection position of 0.5 meter.

As is evident from fig. 6: with the extension of the operation time of the heat exchange system, the temperature difference between the upper position, the middle position and the lower position gradually increases, and when the temperature difference is enlarged to a certain value (more than 10 ℃), the trend of the temperature difference increase is gradually relieved, but the temperature difference still remains to be more than 10 ℃, and particularly the temperature is located in a lower area close to a user side, and the temperature is not effectively increased. Therefore, when the heat exchange system works at present, the problems to be solved in the background technology exist, and the overall user experience is poor.

Fig. 7 is a graph showing a temperature field distribution obtained by the control method of the heat exchange system according to the present application when the temperature field distribution is the same as that of the room of fig. 6. Wherein the abscissa represents the operation time length in minutes; the ordinate indicates the temperature at different locations in the room. In the figure, the temperature sensor is divided into an upper temperature curve, a middle temperature curve and a lower temperature curve according to different positions of a room, wherein the temperature detection position corresponding to the first temperature curve at the uppermost part is a temperature curve with the height of 2 meters, and the temperature detection position corresponding to the second temperature curve at the middle part is a temperature curve with the height of 1.3 meters; the third temperature curve at the lower part corresponds to a temperature curve with a temperature detection position of 0.5 meter.

As is evident from fig. 7: along with the extension of the running time of the heat exchange system, the temperature difference of the upper, middle and lower three positions is relatively large except in the rapid heating temperature rising stage, in order to quickly raise the room temperature, the time difference of the upper, middle and lower positions is about 10 minutes (at this time, high-temperature hot air cannot directly blow users due to the control of the air outlet angle of the heat exchanger), and the overall trend of the following upper, middle and lower three positions is reduced. In the whole, the temperature difference between the upper part, the middle part and the lower part is within 3 ℃, the temperature difference between the lowest part and the uppermost part is within 5 ℃, the room temperature field is uniform, and the heating comfort of a user is guaranteed.

It should be noted that, in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and to distinguish between similar objects, and there is no order of preference between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

The foregoing embodiments in the present specification are all described in a progressive manner, and the same and similar parts of the embodiments are mutually referred to, and each embodiment is mainly described in a different manner from other embodiments.

The foregoing is merely a few embodiments of the present application, and the embodiments disclosed in the present application are merely examples which are used for the convenience of understanding the present application and are not intended to limit the present application. Any person skilled in the art can make any modification and variation in form and detail of the embodiments without departing from the spirit and scope of the present disclosure, but the scope of the present disclosure is still subject to the scope of the appended claims.

Claims

1. A control method of a heat exchange system, the control method comprising:

when the temperature parameter is not less than the first temperature and the temperature difference is in a first temperature difference interval, reducing the working parameter of a heat source communicated with the heat exchanger so as to reduce the temperature parameter related to the heat exchange capacity of the heat exchanger, and at least adjusting the air outlet angle of an air outlet of the heat exchanger based on the reduced temperature parameter; the method further comprises the steps of: when the temperature parameter is in a first temperature interval which is smaller than the first temperature and not smaller than the second temperature, controlling the heat exchanger to operate at a first air outlet angle; and/or the number of the groups of groups,

2. The method of controlling a heat exchange system according to claim 1, wherein the method further comprises:

judging whether the room temperature is matched with the target temperature;

if the temperature difference is not matched, the working parameters of the heat source are regulated according to the temperature difference interval where the temperature difference is located, the temperature parameters are controlled to be reduced by a preset temperature gradient,

and when the temperature parameter is reduced by one preset temperature gradient, correspondingly regulating and controlling the air outlet angle of the heat exchanger according to the current temperature parameter.

3. A control method of a heat exchange system according to claim 2, wherein,

when the temperature difference is in a first temperature difference interval, and when the temperature parameter is reduced from the fourth temperature interval to a first temperature interval by a preset temperature gradient, controlling the heat exchanger to operate at the first air outlet angle;

when the temperature difference is in a second temperature difference interval, and when the temperature parameter is reduced from the first temperature interval to a second temperature interval by a preset temperature gradient, controlling the heat exchanger to operate at the second air outlet angle; the maximum value of the second temperature difference interval is not greater than the minimum value of the first temperature difference interval, and the air outlet angles corresponding to the first air outlet angle and the second air outlet angle are not identical.

4. A method of controlling a heat exchange system as claimed in claim 3 wherein when the temperature difference is in a third temperature difference range, the operating parameters of the heat source are adjusted so that the outlet water temperature of the heat source reaches a maximum.

5. A method of controlling a heat exchange system according to any one of claims 1 to 4, wherein: the temperature parameter related to the heat exchange capacity of the heat exchanger comprises any one or a combination of the following components: the water inlet temperature of the heat exchanger, the water outlet temperature of the heat exchanger, the air outlet temperature of the heat exchanger and the temperature of the heat exchanger.

6. The control method of a heat exchange system according to any one of claims 1 to 4, wherein the first air outlet angle is provided with a first air outlet angle range; the second air outlet angle is provided with a second air outlet angle range;

the second air outlet angle range is partially overlapped with the first air outlet angle range, and the maximum value of the first air outlet angle range is larger than the maximum value of the second air outlet angle range; or,

the second air outlet angle range is completely misaligned with the first air outlet angle range.

7. The method of controlling a heat exchange system according to claim 6, wherein the third air outlet angle is provided with a third air outlet angle range, and a minimum value of the third air outlet angle range is larger than a maximum value of the second air outlet angle range and partially coincides with the first air outlet angle range.

8. A control method of a heat exchange system according to claim 6, wherein the heat exchanger is a wind tray provided with electric louvers,

the first air outlet angle range comprises a first sub-angle range and a second sub-angle range, the maximum value of the first sub-angle range is smaller than or equal to the minimum value of the second sub-angle range, and the air swinging speed of the louver in the first sub-angle range is smaller than the air swinging speed in the second sub-angle range; and/or the number of the groups of groups,

the second air outlet angle range comprises a third sub-angle range and a fourth sub-angle range, the maximum value of the third sub-angle range is smaller than or equal to the minimum value of the fourth sub-angle range, and the air swinging speed of the louver in the third sub-angle range is smaller than the air swinging speed in the fourth sub-angle range.

9. A control method of a heat exchange system according to claim 8, wherein,

when the shutter moves to the first sub-air outlet angle range, the shutter stays for a first duration; and/or the number of the groups of groups,

and when the shutter moves to the third sub-air outlet angle range, the shutter stays for a second time period.

10. The method of controlling a heat exchange system according to claim 8, wherein the electric louver includes a first louver that swings up and down in the first air outlet angle range, or the first louver swings up and down in the second air outlet angle range, or the first louver swings up and down in the third air outlet angle range.

11. The method of claim 10, wherein the motorized louver comprises a second louver that swings laterally and laterally.

12. A control method of a heat exchange system, the control method comprising:

when the temperature parameter is not less than the first temperature and the heat load required by the current indoor environment where the heat exchanger is located is in a preset heat load interval, reducing the working parameter of a heat source communicated with the heat exchanger so as to reduce the temperature parameter related to the heat exchange capacity of the heat exchanger, and at least adjusting the air outlet angle of an air outlet of the heat exchanger based on the reduced temperature parameter; the method further comprises the steps of: when the temperature parameter is in a first temperature interval which is smaller than the first temperature and not smaller than the second temperature, controlling the heat exchanger to operate at a first air outlet angle; and/or the number of the groups of groups,

13. The method of controlling a heat exchange system according to claim 12, wherein: the preset heat load interval is multiple, and the control method further comprises the following steps: and according to the difference of the preset thermal load intervals where the thermal load is located, operating the heat source with different working parameters so that the temperature parameters are in different temperature intervals.

14. A central controller, characterized in that the central controller is configured to perform the control method according to any one of claims 1 to 11 or the control method according to any one of claims 12 to 13.

15. A heat exchange system comprising the central controller of claim 14, a first heat source in communication with the central controller, the first heat source in communication with a heat exchanger.

16. A heat exchange system comprising the central controller of claim 14, a first heat source, a second heat source and a heat exchanger in communication with the central controller, wherein the first heat source is in communication with the heat exchanger through a water outlet pipeline and a water return pipeline, and a water outlet end and a water return end of the second heat source are arranged on the water outlet pipeline or the water return pipeline.

17. The heat exchange system of claim 16, wherein the backwater side of the second heat source is provided with a temperature detection device.