CN115654644B - Control method and control device of air conditioning unit and air conditioning unit - Google Patents
Control method and control device of air conditioning unit and air conditioning unit Download PDFInfo
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- CN115654644B CN115654644B CN202211269141.4A CN202211269141A CN115654644B CN 115654644 B CN115654644 B CN 115654644B CN 202211269141 A CN202211269141 A CN 202211269141A CN 115654644 B CN115654644 B CN 115654644B
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004378 air conditioning Methods 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 108
- 238000012544 monitoring process Methods 0.000 claims abstract description 22
- 238000001816 cooling Methods 0.000 claims description 21
- 238000005057 refrigeration Methods 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 6
- 239000002699 waste material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The invention provides a control method and device of an air conditioning unit and the air conditioning unit. The control method comprises the following steps: determining the starting-up coefficient of each room, and acquiring an indoor temperature monitoring value and an indoor set temperature of each room; determining the terminal temperature difference according to the starting-up coefficient of each room, the indoor temperature monitoring value and the indoor set temperature; and adjusting the set outlet water temperature of the air conditioning unit according to the tail end temperature difference. According to the control method provided by the invention, the terminal temperature difference is determined based on the starting-up coefficient, the indoor environment temperature and the indoor set temperature of each room, the control precision of the unit can be improved, the water outlet set temperature of the whole unit is controlled according to the terminal temperature difference, the combined control of the unit and the terminal is realized, the automatic energy-saving operation of the unit is realized, the water supply temperature of the unit is not required to be regulated based on the self feeling of a user, the intelligent following of the water temperature is realized, and the comfort and the worry saving are realized.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly relates to a control method and device of an air conditioner unit and the air conditioner unit.
Background
The traditional water chilling unit comprises a host machine and a tail end of a fan coil, wherein the tail ends of the fan coil and the host machine are respectively and independently controlled, so that indoor temperature is easy to be higher or lower, comfort of a user is influenced, and energy waste is caused.
The related art discloses a water multi-connected unit operation control method, a device, a medium and a water multi-connected air conditioning system. The internal machine load rate of the water multi-connected unit is calculated through the detected environmental temperature data of the area where the tail end device is located, the water outlet temperature is determined and set according to the internal machine load rate, the water outlet temperature is controlled, the linkage control of the unit and the tail end device is realized, the problem of asynchronous control of a main machine and the tail end of the traditional water chilling unit is solved, and meanwhile, the energy waste is reduced. But the control logic is somewhat complex.
The related art also discloses a temperature control method and device of the unit and an air conditioner unit. Determining the water outlet temperature of the unit according to the determined load parameters of the tail end of the fan coil; and controlling the unit to operate according to the determined outlet water temperature. By the mode, the technical problems of excessively high energy consumption and poor temperature control effect caused by the fact that the water outlet temperature of the existing unit is irrelevant to the tail end load are solved. However, the heat load of different rooms in a room is different, and the heat load is determined by only using the average room temperature difference, so that the accuracy is somewhat poor.
Disclosure of Invention
In view of the above, the invention provides a control method and a control device of an air conditioning unit and the air conditioning unit, which are used for solving the problems of inaccurate temperature control and influence on user comfort caused by independent control of a main machine and a tail end of a traditional water chilling unit.
In order to solve the technical problems, a first aspect of the present invention provides a control method of an air conditioning unit, the air conditioning unit includes n fan coil ends, n is greater than or equal to 1, the n fan coil ends are arranged in one-to-one correspondence with n rooms, the control method includes:
determining the starting-up coefficient of each room, and acquiring an indoor temperature monitoring value and an indoor set temperature of each room;
Determining the end load according to the starting-up coefficient of each room, the indoor temperature monitoring value and the indoor set temperature;
and adjusting the set outlet water temperature of the air conditioning unit according to the end load.
Further alternatively, the air conditioning unit is provided with a cooling mode and a heating mode, and the starting-up coefficient of each room is calculated by adopting the following formula:
ki＝Qi/(Q1+Q2+……+Qn)；
i represents the number i of the room, i is more than or equal to 1 and less than or equal to n; k i represents the start-up coefficient of the room i, namely the rated cooling capacity of the fan coils in the room i is the percentage of the rated cooling capacity of all fan coils in n rooms;
in cooling mode, Q i represents the rated cooling capacity of the fan coil ends of room i;
in heating mode, Q i represents the rated heating capacity of the fan coil end of room i;
Wherein, when the fan coil end of room i is not being cooled or heated, Q i takes a value of 0.
Further alternatively, determining the end load based on the power-on coefficient of each room, the indoor temperature monitor value, and the indoor set temperature includes:
calculating a difference between the indoor temperature monitoring value and the indoor set temperature of each room;
And calculating the end load of one or more first rooms with the difference meeting the first preset condition according to the starting-up coefficient of each first room and the difference between the indoor temperature monitoring value and the indoor set temperature of each first room.
Further optionally, the air conditioning unit is provided with a cooling mode, in which when the difference is greater than a, a < 0, the first preset condition is considered to be satisfied.
Further alternatively, the end load is calculated using the following formula:
j represents the serial number of the first room, Δt represents the end load, Δt j represents the difference between the indoor temperature monitor value and the indoor set temperature of the first room j, and k j represents the power-on coefficient of the first room j.
Further alternatively, adjusting the set outlet water temperature of the air conditioning unit according to the end load includes:
Judging the temperature range of the end load;
and correspondingly adjusting the set water outlet temperature according to the temperature range so as to enable the end load to be in the target temperature range.
Further optionally, the adjusting the set outlet water temperature according to the temperature range includes:
when a < DELTAT is less than or equal to 0, the temperature of the water outlet is set to be increased (-d x DELTA T) DEG C;
when delta T is less than or equal to 0 and less than or equal to b, setting the outlet water temperature to be unchanged;
When b < DELTAT is less than or equal to c, the set water outlet temperature is reduced by (d×DELTAT);
When DeltaT > c, the set water outlet temperature is adjusted to the lowest set water temperature.
Further optionally, after the air conditioning unit operates for a preset time period at the adjusted set outlet water temperature, the control method further includes:
Judging whether the temperature range of the end load changes or not;
if not, continuing to correspondingly adjust the set water outlet temperature according to the temperature range;
if so, correspondingly adjusting the set water outlet temperature according to the changed temperature range.
Further alternatively, the fan coil end is provided with an air supply mode, and the control method further comprises:
for one or more second rooms with the difference value not meeting the first preset condition, switching the operation mode of the tail end of the fan coil of each second room into an air supply mode;
In the air-blowing mode, the water flow path between the main machine and the fan coil ends of each second room is disconnected.
Further optionally, after the air supply mode operation duration reaches the preset duration, the control method further includes:
Judging whether the difference value between the indoor temperature monitoring value and the indoor set temperature of the second room meets a second preset condition or not;
If so, the water flow path between the host and the fan coil ends of the second rooms is communicated, and the operation mode of the fan coil ends of each second room is switched back to the original operation mode.
Further optionally, b > 0 is considered to satisfy the second preset condition when the difference between the indoor ambient temperature monitoring value and the corresponding indoor set temperature is greater than b.
A second aspect of the invention provides a control device for an air conditioning unit comprising one or more processors and a non-transitory computer readable storage medium storing program instructions, the one or more processors being configured to implement the method of any of the first aspects when the one or more processors execute the program instructions.
A third aspect of the invention provides an air conditioning unit employing the method of any of the first aspects, or comprising the control device of the second aspect.
After the technical scheme is adopted, the invention has the following beneficial effects:
The invention determines the tail end temperature difference based on the starting-up coefficient, the indoor environment temperature and the indoor set temperature of each room, can improve the control precision of the unit, controls the water outlet set temperature of the whole machine according to the tail end temperature difference, realizes the combined control of the unit and the tail end, realizes the automatic energy-saving operation of the unit, does not need a user to adjust the water supply temperature of the unit based on own feeling, realizes the intelligent following of the water temperature, and is comfortable and trouble-free.
The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. It is evident that the drawings in the following description are only examples, from which other drawings can be obtained by a person skilled in the art without the inventive effort. In the drawings:
FIG. 1 is a schematic diagram of a fan coil end mounting in accordance with one embodiment of the present invention.
Fig. 2 is a schematic diagram of a water chiller unit and fan coil end unit control installation in accordance with an embodiment of the present invention.
Fig. 3 is a flowchart illustrating a control method of an air conditioning unit according to an embodiment of the present invention.
Fig. 4 is a flowchart illustrating a control method of an air conditioning unit according to an embodiment of the present invention.
Fig. 5 is a flowchart illustrating a control method of an air conditioning unit according to an embodiment of the present invention.
Wherein: the water heater comprises a 1-water chilling unit, a 2-fan coil, a 3-rubber soft joint, a 4-pressure gauge, a 5-stop valve, a 6-check valve, a 7-water drain valve, an 8-Y-type filter, a 9-bypass regulating valve, a 10-water pump, an 11-electric heating device, a 12-pressure reducing valve, a 13-electric two-way valve, a 14-ball valve and a 15-air exhaust valve.
It should be noted that these drawings and the written description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept to those skilled in the art by referring to the specific embodiments.
Detailed Description
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "inner", "outer", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present invention.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "contacting," and "communicating" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The problem that temperature control is inaccurate and user comfort is affected due to the fact that a main machine and the tail end of a traditional water chilling unit are independently controlled is solved. The first aspect of the present embodiment provides a control method of an air conditioning unit. The air conditioning unit comprises n fan coil ends, n is more than or equal to 1, in the embodiment, the air conditioning unit is preferably a water chilling unit, the fan coil ends are preferably fan coil ends, and the n fan coil ends are arranged in one-to-one correspondence with the n rooms.
Fig. 1 is a schematic diagram of the end mounting of a fan coil in this embodiment. Wherein, all install electronic two-way valve 13 on the connecting water pipe of each room fan coil 2, electronic two-way valve 13 is used for controlling the break-make of above-mentioned connecting water pipe.
Fig. 2 is a schematic diagram of the combined control installation of the cold water unit and the tail end of the fan coil in the present embodiment. Each tail end fan coil is provided with a temperature controller, and all the temperature controllers are connected with a host manual operator to realize communication. The on-off of the unit is controlled through the temperature controller, the temperatures of different rooms are adjusted, and a user does not need to adjust the water temperature of the manual operator. The temperature controller is internally provided with an environment temperature sensing bulb which can measure the indoor environment temperature of a room.
The control method of the air conditioning unit according to the present embodiment will be described below with reference to the accompanying drawings.
Fig. 3 is a flow chart of a control method of the air conditioning unit according to the present embodiment. Referring to fig. 3, the control method includes S1 to S3, wherein:
S1, determining a starting coefficient of each room, and acquiring an indoor temperature monitoring value and an indoor set temperature of each room;
S2, determining the end load according to the starting-up coefficient, the indoor temperature monitoring value and the indoor set temperature of each room;
S3, adjusting the set outlet water temperature of the air conditioning unit according to the end load.
Specifically, the fan coil of each indoor room is selected by professionals according to indoor thermal load, the fan coil is accurate and reasonable in shape selection, and the accuracy of the starting-up coefficient can be improved.
In the embodiment, the terminal load is determined based on the starting-up coefficient, the indoor environment temperature and the indoor set temperature of each room, so that the control precision of the unit can be improved, the water outlet set temperature of the whole unit is further controlled according to the terminal load, the combined control of the unit and the terminal is realized, the automatic energy-saving operation of the unit is realized, the water supply temperature of the unit is not required to be regulated based on the self feeling of a user, the intelligent following of the water temperature is realized, and the comfort and the worry saving are realized.
Further alternatively, the air conditioning unit is provided with a cooling mode, and the starting-up coefficient of each room is calculated by adopting the following formula:
ki＝Qi/(Q1+Q2+……+Qn)；
Wherein i represents the number of the room which is i < 1 > and n < 1 >; k i denotes the start-up factor of the fan coil end of room i;
in cooling mode, Q i represents the rated cooling capacity of the fan coil ends of room i;
wherein, when the fan coil end of room i is not being cooled, Q i takes a value of 0.
Specifically, k i is the starting coefficient of the room i, and when the air conditioning unit is in refrigeration operation, k i is the percentage of rated cooling capacity of fan coils in the room i to the rated cooling capacity of fan coils in all rooms.
Q i -when the temperature controller in the room i is in a refrigerating mode, Q i is rated cooling capacity of a fan coil in the room i; when the temperature controller in the room i is in the non-refrigeration mode, the value of Q i is 0.
Further optionally, the air conditioning unit is provided with a cooling mode, in which when the difference is greater than a, a < 0, the first preset condition is considered to be satisfied.
Specifically, if there is a difference Δt i between the indoor temperature and the indoor set temperature in any room that is less than or equal to a (a < 0, which may be set according to the actual situation or the customer requirement, for example, a is preferably-1), the room temperature is considered to be too low, and the air supply mode is switched to by the room temperature controller at this time, so as to avoid energy efficiency waste caused by too low room temperature and influence user comfort.
Further alternatively, in conjunction with fig. 4, S2 includes S21 to S22, wherein:
S21, calculating a difference value between an indoor temperature monitoring value of each room and the indoor set temperature;
s22, for one or more first rooms with the difference meeting the first preset condition, calculating the end load according to the starting-up coefficient of each first room and the difference between the indoor temperature monitoring value and the indoor set temperature.
Firstly, judging whether the difference value between the indoor temperature monitoring value and the indoor set temperature of each room meets a first preset condition. Taking the refrigeration mode as an example, the first preset condition is used for judging whether the actual temperature in the room is too low, and when the difference value does not meet the first preset condition, the actual temperature in the room is considered to be too low. For any room (recorded as a first room) of which the difference value meets a first preset condition, the terminal load is determined through the starting-up coefficient of the first room, the indoor temperature monitoring value and the indoor set temperature, and the set water outlet temperature of the whole machine is adjusted based on the terminal load, so that the control precision of the machine set can be further improved, the operation of the machine set is more energy-saving, and meanwhile, the comfort of a user is also improved.
Further alternatively, the end load is calculated using the following formula:
j represents the serial number of the first room; Δt represents the end load, Δt j represents the difference between the indoor temperature monitor value and the indoor set temperature of the first room j, and k j represents the power-on coefficient of the first room j.
Further alternatively, in connection with fig. 5, S3 includes steps A1, A2:
a1, judging a temperature range of the end load;
A2, correspondingly adjusting the set water outlet temperature according to the temperature range so as to enable the end load to be in the target temperature range.
Specifically, when the end load is in the target temperature range, the set water outlet temperature is not required to be adjusted, and the set water outlet temperature of the whole air conditioner is kept unchanged, so that the air conditioner is in a target running state, and the air conditioner can realize accurate temperature control, meet the refrigerating requirement of a user and save energy.
Further alternatively, taking four temperature ranges as an example, the setting outlet water temperature is correspondingly adjusted according to the temperature ranges, including:
when a < DELTAT is less than or equal to 0, the temperature of the water outlet is set to be increased (-d x DELTA T) DEG C;
when delta T is less than or equal to 0 and less than or equal to b, setting the outlet water temperature to be unchanged;
When b < DELTAT is less than or equal to c, the set water outlet temperature is reduced by (d×DELTAT);
When DeltaT > c, the set water outlet temperature is adjusted to the lowest set water temperature.
In this example, d > 0, with a preferred value of 2 in conjunction with FIG. 5,d.
Further optionally, after the air conditioning unit operates for a preset period of time at the adjusted set outlet water temperature, the control method further includes steps B1 to B3, wherein:
b1, judging whether the temperature range of the end load changes or not; if not, executing the step B2, and if so, executing the step B3;
b2, continuing to correspondingly adjust the set water outlet temperature according to the temperature range;
and B3, correspondingly adjusting the set water outlet temperature according to the changed temperature range.
Specifically, with reference to fig. 5, when a < Δtis less than or equal to 0, the unit setting water temperature T Water supply device rises (-2×Δt) deg.c, and if a < Δtis less than or equal to 0 after X minutes, the unit setting water temperature T Water supply device continues to rise (-2×Δt) deg.c, the unit setting water temperature T Water supply device has the highest limit, and after the highest setting water temperature is adjusted, the unit setting water temperature cannot continue to rise. If a < DELTATis not less than or equal to 0 after X minutes, T Water supply device is regulated according to a specific temperature range corresponding to DELTAT;
when DeltaT is less than or equal to 0 and less than or equal to b, the set water temperature T Water supply device is kept unchanged. If the delta T is less than or equal to 0 and less than or equal to b after X minutes, the set water temperature T Water supply device is kept unchanged, otherwise, the T Water supply device is regulated according to the specific temperature range corresponding to the delta T;
When b < [ delta ] T is less than or equal to c (0 < b < c, which can be set according to the actual situation or the needs of the customer, for example, c is preferably 5), the unit setting water temperature T Water supply device is reduced by (2X [ delta ] T), and if b < [ delta ] T is less than or equal to c after X minutes, the unit setting water temperature T Water supply device is continuously reduced by (2X [ delta ] T) DEG C, the unit setting water temperature T Water supply device has the lowest limit, and the unit setting water temperature T Water supply device cannot be continuously reduced after being adjusted to the lowest setting water temperature. If a < DELTATis not less than or equal to 0 after X minutes, T Water supply device is regulated according to a specific temperature range corresponding to DELTAT;
when DeltaT is more than c, the set water temperature T Water supply device is adjusted to the lowest set water temperature for operation. If DeltaT > c is also met after X minutes, keeping T Water supply device to be the lowest set water temperature, otherwise, adjusting T Water supply device according to the specific temperature range corresponding to DeltaT.
Further alternatively, the tail end of the fan coil is provided with an air supply mode, and the control method further comprises the steps of C1-C2:
c1, for one or more second rooms with difference values not meeting a first preset condition, switching the operation mode of the tail end of a fan coil of each second room into an air supply mode;
and C2, in the air supply mode, disconnecting the water flow path between the host machine of the air conditioning unit and the tail end of the fan coil of each second room.
For any room (recorded as a second room) in which the difference between the indoor temperature monitoring value and the indoor set temperature does not meet the first preset condition, namely, a room with an excessively low room temperature, at the moment, the water flow path between the host machine and the tail end of the fan coil of the second room is disconnected, namely, the cooling supply to the room is stopped, and the tail end of the fan coil of the room is enabled to operate in an air supply mode, so that the energy efficiency waste caused by the excessively low room temperature can be avoided, and the comfort of a user is influenced.
Further optionally, after the air supply mode operation duration reaches the preset duration, the control method further includes D1-D2:
D1, judging whether a difference value between an indoor temperature monitoring value and an indoor set temperature of a second room meets a second preset condition; if yes, executing D2;
And D2, communicating a water flow path between a host machine of the air conditioning unit and the tail end of the fan coil of the second room, and switching the operation mode of the tail end of the fan coil of the second room back to the original operation mode.
Further optionally, b > 0 is considered to satisfy the second preset condition when the difference between the indoor ambient temperature monitoring value and the corresponding indoor set temperature is greater than b.
Specifically, if there is a difference Δt i between the indoor temperature and the indoor set temperature in any room less than or equal to a (a is less than 0, and may be set according to the actual situation or the needs of the user, for example, a is preferably-1), the bypass electric two-way valve 13 is closed, and the room temperature controller is switched to the air supply mode, so as to avoid energy efficiency waste caused by too low room temperature and influence user comfort. After X minutes, it is detected whether the room satisfies Deltat i > b (b > 0, which may be set according to the actual situation or customer requirements, e.g., preferably b is 2), and if not, the air supply mode is continued until Deltat i > b is detected to be satisfied, and the air supply mode is switched to the cooling mode.
A second aspect of the present embodiment provides a control device for an air conditioning unit, comprising one or more processors and a non-transitory computer readable storage medium storing program instructions, the one or more processors being configured to implement the method of any one of the first aspects when the one or more processors execute the program instructions.
A third aspect of the present embodiment provides an air conditioning unit employing the method of any one of the first aspects, or including the control device of the second aspect.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
From the above description of the embodiments, it will be apparent to those skilled in the art that the embodiments may be implemented by means of software plus necessary general hardware platforms, or of course may be implemented by means of hardware. Based on this understanding, the foregoing technical solution may be embodied essentially or in a part contributing to the prior art in the form of a software product, which may be stored in a computer readable storage medium, such as ROM/RAM, a magnetic disk, an optical disk, etc., including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method described in the respective embodiments or some parts of the embodiments.
The foregoing description is only illustrative of the preferred embodiment of the present invention, and is not to be construed as limiting the invention, but is to be construed as limiting the invention to any and all simple modifications, equivalent variations and adaptations of the embodiments described above, which are within the scope of the invention, may be made by those skilled in the art without departing from the scope of the invention.
Claims (12)
1. The control method of the air conditioning unit comprises a host machine and n fan coil tail ends arranged in n rooms, wherein n is more than or equal to 1, the air conditioning unit is a water chilling unit, and the n fan coil tail ends are arranged in one-to-one correspondence with the n rooms, and the control method is characterized by comprising the following steps:
determining the starting-up coefficient of each room, and acquiring an indoor temperature monitoring value and an indoor set temperature of each room;
Determining the end load according to the starting-up coefficient, the indoor temperature monitoring value and the indoor set temperature of each room;
Adjusting the set outlet water temperature of the air conditioning unit according to the tail end load;
the air conditioning unit is provided with a refrigeration mode, and the starting-up coefficient of each room is calculated by adopting the following formula:
ki＝Qi/(Q1+Q2+……+Qn)；
i represents the number i of the room, i is more than or equal to 1 and less than or equal to n; k i represents the start-up coefficient of the room i, namely the rated cooling capacity of the fan coils in the room i accounts for the percentage of the rated cooling capacity of all the fan coils in n rooms;
In the cooling mode, Q i represents the rated cooling capacity of the fan coil end of room i, wherein Q i takes on a value of 0 when the fan coil end of room i is not cooling.
2. The control method according to claim 1, wherein determining the end load based on the start-up coefficient of each of the rooms, the indoor temperature monitor value, and the indoor set temperature, comprises:
calculating a difference value between an indoor temperature monitoring value and an indoor set temperature of each room;
and for one or more first rooms, the difference value of which meets a first preset condition, calculating the end load according to the starting-up coefficient of each first room and the difference value between the indoor temperature monitoring value and the indoor set temperature of each first room.
3. The control method according to claim 2, wherein a < 0 is regarded as satisfying the first preset condition when the difference is greater than a in the cooling mode.
4. The control method according to claim 2, characterized in that the end load is calculated using the following formula:
Δt represents the end load, j represents the serial number of the first room, Δt j represents the difference between the indoor temperature monitor value and the indoor set temperature of the first room j, and k j represents the power-on coefficient of the room j.
5. The control method according to claim 2, wherein adjusting the set outlet water temperature of the air conditioning unit according to the end load includes:
Judging the temperature range of the end load;
And correspondingly adjusting the set water outlet temperature according to the temperature range so as to enable the end load to be in a target temperature range.
6. The control method according to claim 5, wherein the corresponding adjustment of the set outlet water temperature according to the temperature range includes:
When a < DELTAT is less than or equal to 0, the set water outlet temperature is increased (-d x DELTA T) DEG C, and d is more than 0;
When delta T is less than or equal to 0 and less than or equal to b, the set water outlet temperature is kept unchanged;
when b < DELTAT is less than or equal to c, the set water outlet temperature is reduced by (dxDELTA T);
and when delta T is more than c, the set water outlet temperature is adjusted to the lowest set water temperature.
7. The control method according to claim 5, wherein after the air conditioning unit is operated at the adjusted set outlet water temperature for a preset period of time, the control method further comprises:
judging whether the temperature range of the end load changes or not;
If not, continuing to correspondingly adjust the set water outlet temperature according to the temperature range;
if so, correspondingly adjusting the set water outlet temperature according to the changed temperature range.
8. The control method of claim 2, wherein the fan coil end is provided with a supply air mode, the control method further comprising:
for one or more second rooms, the difference value of which does not meet the first preset condition, switching the operation mode of the tail end of the fan coil of each second room to the air supply mode;
and in the air supply mode, disconnecting the water flow path between the host machine and the tail end of the fan coil of each second room.
9. The control method according to claim 8, wherein after the air supply mode operation time period reaches a preset time period, the control method further comprises:
judging whether the difference value between the indoor temperature monitoring value and the indoor set temperature of the second room meets a second preset condition or not;
If so, communicating the water flow path between the host and the end of the fan coil of the second room, and switching the operation mode of the end of the fan coil of the second room back to the original operation mode.
10. The control method according to claim 9, wherein b > 0 is considered to satisfy the second preset condition when a difference between the indoor ambient temperature monitor value and the corresponding indoor set temperature is greater than b.
11. A control device of an air conditioning unit, characterized in that it comprises one or more processors and a non-transitory computer readable storage medium storing program instructions, which when executed by the one or more processors are adapted to carry out the method according to any one of claims 1-10.
12. An air conditioning assembly, characterized in that it employs the method of any one of claims 1-10, or comprises the control device of claim 11.
Priority Applications (1)
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| JP6414354B1 (en) * | 2017-03-31 | 2018-10-31 | ダイキン工業株式会社 | Air conditioning system |
| CN107166649A (en) * | 2017-05-22 | 2017-09-15 | 青岛海尔空调器有限总公司 | Control method, control device and the air conditioner of independent assortment one-driving-one air conditioner |
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