CN117704630A - Heat exchange structure, air conditioner and control method - Google Patents
Heat exchange structure, air conditioner and control method Download PDFInfo
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- CN117704630A CN117704630A CN202311812271.2A CN202311812271A CN117704630A CN 117704630 A CN117704630 A CN 117704630A CN 202311812271 A CN202311812271 A CN 202311812271A CN 117704630 A CN117704630 A CN 117704630A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 116
- 238000005057 refrigeration Methods 0.000 claims abstract description 43
- 239000003507 refrigerant Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 68
- 238000001816 cooling Methods 0.000 claims description 23
- 239000003795 chemical substances by application Substances 0.000 claims description 19
- 238000004891 communication Methods 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 22
- 230000008569 process Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
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- Air Conditioning Control Device (AREA)
Abstract
The invention provides a heat exchange structure, an air conditioner and a control method, comprising the following steps: the refrigerating system comprises a refrigerant pipeline and a plurality of refrigerating modules connected with the refrigerant pipeline, and the refrigerating modules are arranged in different spaces; the refrigerant pipeline is used for introducing refrigerant to the plurality of refrigeration modules; each refrigeration module is provided with an expansion valve which is used for controlling the communication or disconnection between the corresponding refrigeration module and the refrigerant pipeline; the plurality of heating modules are arranged in a one-to-one correspondence with the plurality of refrigerating modules and are used for generating heat; the control module is in signal connection with the expansion valves so as to control the opening or closing of each expansion valve; the control module is in signal connection with the plurality of heating modules. The heat exchange structure, the air conditioner and the control method solve the technical problem that in the related art, part of indoor units can perform refrigeration operation in a refrigeration mode of the air conditioner, and the other indoor units cannot start heating.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a heat exchange structure, an air conditioner and a control method.
Background
The double heat source indoor unit is a double heat source indoor unit capable of realizing cooling and heating simultaneously, and generally comprises a hot water coil pipe part and a main air pipe part. The existing double-heat-source indoor unit can only be started when the whole machine is in a heating mode or a heating mode, and if the whole machine mode is in a refrigerating mode, the double-heat-source indoor unit cannot start heating, so that mode conflict can be generated. Aiming at the situation that part of rooms have refrigeration demands and part of rooms have heating demands, the requirements cannot be met.
Accordingly, the prior art is subject to further development.
Disclosure of Invention
The invention aims to overcome the technical defects, and provides a heat exchange structure, an air conditioner and a control method, so as to solve the technical problem that in the related art, part of indoor units can perform refrigeration operation in a refrigeration mode of the air conditioner, and the other indoor units cannot start heating.
In order to achieve the technical purpose, the invention adopts the following technical scheme: there is provided a heat exchange structure comprising: the refrigerating system comprises a refrigerant pipeline and a plurality of refrigerating modules connected with the refrigerant pipeline, and the refrigerating modules are arranged in different spaces; the refrigerant pipeline is used for introducing refrigerant to the plurality of refrigeration modules; each refrigeration module is provided with an expansion valve which is used for controlling the communication or disconnection between the corresponding refrigeration module and the refrigerant pipeline; the plurality of heating modules are arranged in a one-to-one correspondence with the plurality of refrigerating modules and are used for generating heat; the control module is in signal connection with the expansion valves so as to control the opening or closing of each expansion valve; the control module is connected with the plurality of heating modules in a signal manner so as to control the opening or closing of each heating module.
Further, the heating module comprises a hot water coil pipe, the hot water coil pipe is used for circulating heating agents, a water valve is arranged on the hot water coil pipe and used for controlling on-off of the hot water coil pipe, and the water valve is connected with the control module.
Further, the heating module comprises a temperature sensor, wherein the temperature sensor is connected with the hot water coil pipe and is used for measuring the temperature of a heating agent in the hot water coil pipe; the temperature sensor is in signal connection with the control module.
Further, each refrigeration module is provided with a heat exchanger for releasing cold energy; the heat exchangers are arranged in one-to-one correspondence with the hot water coils; the heat exchange structure also comprises a plurality of fans, and the fans are arranged in one-to-one correspondence with the heat exchangers so as to blow cold or heat through the fans.
Further, the heat exchange structure further comprises an alarm module which is connected with the control module in a signal manner, wherein the alarm module is used for monitoring a plurality of heating modules and a plurality of refrigerating modules, and when an expansion valve on the refrigerating module is opened and the corresponding heating module is opened, the alarm module gives an alarm.
Further, the alarm module is in signal connection with the temperature sensors on each heating module.
Further, the heat exchanger further comprises a plurality of temperature sensing modules, the plurality of temperature sensing modules are arranged in one-to-one correspondence with the plurality of refrigeration modules, the plurality of temperature sensing modules are used for measuring temperature, the plurality of temperature sensing modules are used for setting temperature threshold values, and the plurality of temperature sensing modules are connected with the control module through signals.
An air conditioner comprises a heat exchange structure, wherein the heat exchange structure is the heat exchange structure.
The control method is suitable for the heat exchange structure, and comprises the following steps: starting a refrigerating system, and introducing a refrigerant into a refrigerant pipeline of the refrigerating system; judging whether refrigeration is needed in the space where the refrigeration module of each refrigeration system is located; if yes, opening an expansion valve on the corresponding refrigeration module; judging whether heating is needed in the space where the refrigerating module of each refrigerating system is positioned; if yes, closing the expansion valve on the corresponding refrigeration module; the heating module is heated.
Further, the heating module heating method includes: a temperature sensor is arranged on the heating module, and the temperature T is measured by the temperature sensor Water temperature The method comprises the steps of carrying out a first treatment on the surface of the Setting a threshold T0; when T is Water temperature When T0 is less than or equal to T0, controlling the heating module not to exchange heat; raising the temperature of a heating agent for heat exchange in the heating module; when T is Water temperature And when the temperature is more than T0, controlling the heating module to exchange heat.
Further, the control method includes: setting a threshold Tmin and a threshold Tmax; if T Water temperature < Tmin, or T Water temperature Control heating module and corresponding systemThe cold module stops working.
The beneficial effects are that:
when the heat exchange structure in the embodiment is applied to a double-heat-source air conditioner, under the condition that the whole refrigerating system is in a refrigerating mode, if one or more spaces want to be opened for heating, the connection between the refrigerating module and the refrigerating system is interrupted through the expansion valve, so that the refrigerating module in the corresponding space stops refrigerating, and meanwhile, the corresponding heating module is opened, so that the heating in the corresponding space is started, the purposes that when part of indoor units are in the refrigerating mode, the other part of indoor units can simultaneously heat, the diversified demands of different places of the double-heat-source air conditioner are met, and the technical problems that in the related art, part of indoor units are in refrigerating operation in the refrigerating mode of the air conditioner, and the rest of indoor units cannot be opened for heating are solved.
Drawings
FIG. 1 is a schematic view of a heat exchange structure employed in an embodiment of the present invention;
fig. 2 is a flow chart of a control method employed by an embodiment of the present invention.
Wherein the above figures include the following reference numerals:
1. a refrigerant pipe; 2. a refrigeration module; 21. an expansion valve; 22. a heat exchanger; 23. a blower; 3. a heating module; 31. a hot water coil; 32. a water valve; 33. a temperature sensor.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
According to an embodiment of the present invention, a heat exchange structure is provided, please refer to fig. 1 to 2, including: the refrigerating system comprises a refrigerant pipeline 1 and a plurality of refrigerating modules 2 connected with the refrigerant pipeline 1, wherein the refrigerating modules 2 are arranged in different spaces; the refrigerant pipeline 1 is used for introducing refrigerant to the plurality of refrigeration modules 2; each refrigeration module 2 is provided with an expansion valve 21, and the expansion valve 21 is used for controlling the connection or disconnection of the corresponding refrigeration module 2 and the refrigerant pipeline 1; a plurality of heating modules 3, the plurality of heating modules 3 are arranged in one-to-one correspondence with the plurality of cooling modules 2, and the plurality of heating modules 3 are used for generating heat; the control module is in signal connection with the expansion valves 21 so as to control the opening or closing of each expansion valve 21; the control module is in signal connection with a plurality of heating modules 3 to control the opening or closing of each heating module 3.
Through the arrangement, under the condition that the whole refrigerating system is in the refrigerating mode, if the refrigerating system is started in a single or a plurality of spaces, the connection between the refrigerating module 2 and the refrigerating system is interrupted through the expansion valve 21, so that the refrigerating module 2 in the corresponding space stops refrigerating, and meanwhile, the corresponding heating module 3 is started, so that the heating in the corresponding space is started.
In the heat exchange structure of this embodiment, referring to fig. 1, the heating module 3 includes a hot water coil 31, the hot water coil 31 is used for circulating a heating agent, a water valve 32 is disposed on the hot water coil 31, the water valve 32 is used for controlling on-off of the hot water coil 31, and the water valve 32 is connected with the control module. With the above arrangement, when the heating mode is required to be turned on in the room where there is a heating demand, the heating mode can be turned on by controlling the communication between the hot water coil 31 and the heating system by controlling the water valve 32.
Specifically, the heating agent is municipal central heating or other forms of hot water provided.
Specifically, when the water valve 32 is opened, the heating agent flows into the hot water coil 31, and heat exchange is generated between the heating agent and ambient air, so that the circulation of hot air can be accelerated by the blower 23 and the hot air can be blown into the room.
In the heat exchange structure of the present embodiment, referring to fig. 1, the heating module 3 includes a temperature sensor 33, the temperature sensor 33 being connected to the hot water coil 31, the temperature sensor 33 being for measuring the temperature of the heating agent in the hot water coil 31; the temperature sensor 33 is in signal connection with the control module. By arranging the temperature sensor 33 to monitor the temperature of the heating agent in the hot water coil 31 in real time, the phenomenon that cold air is blown out indoors in a heating mode when the temperature of the heating agent is too low to influence the use experience of a user is avoided.
In the heat exchange structure of the present embodiment, referring to fig. 1, each refrigeration module 2 is provided with a heat exchanger 22 for releasing cold; the plurality of heat exchangers 22 are arranged in one-to-one correspondence with the plurality of hot water coils 31; the heat exchange structure further includes a plurality of fans 23, and the plurality of fans 23 are disposed in one-to-one correspondence with the plurality of heat exchangers 22 to blow cooling or heating through the fans 23. Through the above arrangement, when the indoor unit is in different modes, the cooling capacity or the heat is carried by the fan 23, so that the function of adjusting the room temperature is realized.
In the heat exchange structure of this embodiment, referring to fig. 1, the heat exchange structure further includes an alarm module, which is in signal connection with the control module, and is configured to monitor the plurality of heating modules 3 and the plurality of cooling modules 2, and when the expansion valve 21 on the cooling module 2 is opened, and the corresponding heating module 3 is opened, the alarm module gives an alarm. Specifically, by providing the alarm module, when the expansion valve 21 and the heating module 3 are simultaneously opened, it is explained that the cooling mode and the heating mode are simultaneously opened, and at this time, a mode conflict occurs, the alarm module gives an alarm, and the cooling module 2 and the heating module 3 are controlled to stop.
In the heat exchange structure of the present embodiment, referring to fig. 1, the alarm modules are signal-connected to the temperature sensors 33 on the respective heating modules 3. Specifically, when the temperature of the heating agent is abnormal, an alarm is sent out through the alarm module.
In the heat exchange structure of the present embodiment, referring to fig. 1, the heat exchanger 22 further includes a plurality of temperature sensing modules, which are disposed in one-to-one correspondence with the plurality of refrigeration modules 2, and are used for measuring temperatures, and are used for setting temperature thresholds, and are in signal connection with the control module. When the refrigeration mode is started, the temperature of the refrigerant in the refrigeration module 2 is detected through the temperature sensing module, so that refrigeration abnormality is avoided.
In the air conditioner of the present embodiment, referring to fig. 1, the air conditioner includes a heat exchange structure, where the heat exchange structure is the heat exchange structure described above.
In the control method of the present embodiment, referring to fig. 2, the control method is applicable to the heat exchange structure described above, and includes: starting a refrigerating system, and introducing a refrigerant into a refrigerant pipeline 1 of the refrigerating system; judging whether refrigeration is needed in the space where the refrigeration module 2 of each refrigeration system is located; if yes, opening the expansion valve 21 on the corresponding refrigeration module 2; judging whether heating is required in the space where the refrigerating module 2 of each refrigerating system is positioned; if so, closing the expansion valve 21 on the corresponding refrigeration module 2; the heating module 3 is heated.
Through the arrangement, the indoor unit in the embodiment is started and simultaneously performs the functions of cooling and heating, when part of the indoor units are in a cooling mode, the air conditioner is still operated in the cooling mode when heating demands are met by part of the indoor units, the indoor units with cooling demands are still in the cooling mode, the expansion valve 21 is normally opened, the fan 23 is started, the water valve 32 is closed, the indoor units with heating demands are opened in a heating mode, the expansion valve 21 of the indoor units in the heating mode is closed, and the fan 23 and the water valve 32 are opened.
Specifically, when all the indoor units in the air conditioner are not started to perform the functions of simultaneously cooling and heating, part of the indoor units are set to be in a cooling mode, and other indoor units are started to be in a heating mode. The air conditioner is operated in a cooling mode, the expansion valve 21 for setting the cooling mode is opened, the fan 23 is started, the water valve 32 is closed, the expansion valve 21 for setting the heating mode is closed, the fan 23 is stopped, the water valve 32 is closed, and the collision of the modes of the whole air conditioner is prompted.
Specifically, one indoor unit in the double-heat-source air conditioner can be started to simultaneously perform cooling and heating functions, or a plurality of indoor units are started to simultaneously perform cooling and heating functions, or all indoor units have the functions of starting to simultaneously perform cooling and heating.
In the control method of the present embodiment, referring to fig. 2, the method of heating by the heating module 3 includes: a temperature sensor 33 is provided in the heating module 3, and the temperature T is measured by the temperature sensor 33 Water temperature The method comprises the steps of carrying out a first treatment on the surface of the Setting a threshold T0; when T is Water temperature When T0 is less than or equal to T0, the heating module 3 is controlled not to exchange heat; raising the temperature of the heating agent for heat exchange in the heating module 3; when T is Water temperature And when the temperature is more than T0, the heating module 3 is controlled to exchange heat. Through the above setting, the indoor unit of heating mode is opened, through intelligent judgement temperature, and the opening or closing of control water valve 32 realizes intelligent heating to prevent cold wind processing according to the temperature.
Specifically, when the temperature sensor 33 detects T Water temperature When the temperature of the heating agent is more than T0, the water valve 32 is opened, the fan 23 is opened, hot water flows into the hot water coil 31 to perform heat exchange and heating, and meanwhile, the control module adjusts the corresponding refrigeration module 2 into an air supply mode, and the expansion valve 21 is closed.
When the temperature sensor 33 detects T Water temperature When T0 is less than or equal to, the temperature of the heating agent is too low, heating is stopped, the water valve 32 is closed, the fan 23 is closed, cold air prevention treatment is performed, and only the temperature T is reserved Water temperature When the temperature is more than T0 or after a certain time, the water valve 32 is opened, the fan 23 is started, and the hot water coil 31 exchanges heat with the heating agent to heat.
In the control method of the present embodiment, referring to fig. 2, the control method includes: setting a threshold Tmin and a threshold Tmax; if T Water temperature < Tmin, or T Water temperature And > Tmax, the heating module 3 and the corresponding cooling module 2 are controlled to stop working. Specifically, when the heating agent water temperature is abnormally failed or the temperature sensor 33 is abnormally failed, the alarm module alarms, reminding the user to repair the indoor unit.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Alternatively, specific examples in this embodiment may refer to examples described in the foregoing embodiments, and this embodiment is not described herein.
The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application and are intended to be comprehended within the scope of the present application.
Claims (11)
1. A heat exchange structure, comprising:
the refrigerating system comprises a refrigerant pipeline (1) and a plurality of refrigerating modules (2) connected with the refrigerant pipeline (1), wherein the refrigerating modules (2) are arranged in different spaces; the refrigerant pipeline (1) is used for introducing refrigerant into the plurality of refrigeration modules (2); each refrigeration module (2) is provided with an expansion valve (21), and the expansion valves (21) are used for controlling the connection or disconnection of the corresponding refrigeration module (2) and the refrigerant pipeline (1);
a plurality of heating modules (3), wherein the plurality of heating modules (3) are arranged in one-to-one correspondence with the plurality of refrigerating modules (2), and the plurality of heating modules (3) are used for generating heat;
the control module is in signal connection with a plurality of expansion valves (21) so as to control the opening or closing of each expansion valve (21); the control module is in signal connection with a plurality of heating modules (3) so as to control the opening or closing of each heating module (3).
2. The heat exchange structure according to claim 1, wherein the heating module (3) comprises a hot water coil (31), the hot water coil (31) is used for circulating heating agent, a water valve (32) is arranged on the hot water coil (31), the water valve (32) is used for controlling on-off of the hot water coil (31), and the water valve (32) is connected with the control module.
3. The heat exchange structure according to claim 2, wherein the heating module (3) comprises a temperature sensor (33), the temperature sensor (33) being connected to the hot water coil (31), the temperature sensor (33) being for measuring the heating agent temperature in the hot water coil (31); the temperature sensor (33) is in signal connection with the control module.
4. Heat exchange structure according to claim 2, wherein each of said refrigeration modules (2) is provided with a heat exchanger (22) for releasing cold; the heat exchangers (22) are arranged in one-to-one correspondence with the hot water coils (31); the heat exchange structure further comprises a plurality of fans (23), and the fans (23) are arranged in one-to-one correspondence with the heat exchangers (22) so as to blow cold or heat through the fans (23).
5. A heat exchange structure according to claim 3, further comprising an alarm module in signal connection with the control module, the alarm module being adapted to monitor a plurality of heating modules (3) and a plurality of cooling modules (2), the alarm module issuing an alarm when the expansion valve (21) on the cooling module (2) is open and the corresponding heating module (3) is open.
6. Heat exchange structure according to claim 5, characterized in that the alarm module is in signal connection with the temperature sensor (33) on each heating module (3).
7. The heat exchange structure according to claim 4, wherein the heat exchanger (22) further comprises a plurality of temperature sensing modules, the plurality of temperature sensing modules are arranged in one-to-one correspondence with the plurality of refrigeration modules (2), the plurality of temperature sensing modules are used for measuring temperature, the plurality of temperature sensing modules are used for setting temperature threshold values, and the plurality of temperature sensing modules are in signal connection with the control module.
8. An air conditioner comprising a heat exchange structure, characterized in that the heat exchange structure is the heat exchange structure according to any one of claims 1 to 7.
9. A control method applicable to the heat exchange structure according to any one of claims 1 to 7, characterized in that the control method comprises:
starting a refrigerating system, and introducing a refrigerant into a refrigerant pipeline (1) of the refrigerating system;
judging whether refrigeration is needed in the space where the refrigeration module (2) of each refrigeration system is located; if yes, opening the expansion valve (21) on the corresponding refrigeration module (2);
judging whether heating is needed in the space where the refrigerating module (2) of each refrigerating system is positioned; if so, closing the expansion valve (21) on the corresponding refrigeration module (2); heating the heating module (3).
10. The control method according to claim 9, characterized in that the method of heating by the heating module (3) comprises: a temperature sensor (33) is provided on the heating module (3), and the temperature T is measured by the temperature sensor (33) Water temperature ；
Setting a threshold T0;
when T is Water temperature When T0 is less than or equal to, controlling the heating module (3) not to exchange heat; lifting the inside of the heating module (3) for replacementThe temperature of the hot heating agent;
when T is Water temperature And when the temperature is more than T0, controlling the heating module (3) to exchange heat.
11. The control method according to claim 10, characterized in that the control method includes:
setting a threshold Tmin and a threshold Tmax;
if T Water temperature < Tmin, or T Water temperature And (2) controlling the heating module (3) and the corresponding refrigerating module (2) to stop working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311812271.2A CN117704630A (en) | 2023-12-26 | 2023-12-26 | Heat exchange structure, air conditioner and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311812271.2A CN117704630A (en) | 2023-12-26 | 2023-12-26 | Heat exchange structure, air conditioner and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117704630A true CN117704630A (en) | 2024-03-15 |
Family
ID=90160645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311812271.2A Pending CN117704630A (en) | 2023-12-26 | 2023-12-26 | Heat exchange structure, air conditioner and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117704630A (en) |
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2023
- 2023-12-26 CN CN202311812271.2A patent/CN117704630A/en active Pending
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