CN112013494A - Machine room air conditioning system, and control method, device, equipment and medium of system - Google Patents
Machine room air conditioning system, and control method, device, equipment and medium of system Download PDFInfo
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- CN112013494A CN112013494A CN201910473192.0A CN201910473192A CN112013494A CN 112013494 A CN112013494 A CN 112013494A CN 201910473192 A CN201910473192 A CN 201910473192A CN 112013494 A CN112013494 A CN 112013494A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
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Abstract
The invention discloses a machine room air conditioning system, and a control method, a control device, equipment and a control medium of the system. The system comprises: the humidity sensor is connected with the first control device and used for collecting the humidity in the machine room; the enthalpy humidifier is connected with the first control device and arranged inside the machine room air conditioner; the first control device is used for adjusting the numerical value of the operating parameter of the isenthalpic humidifier based on the difference value between the humidity and the preset humidity threshold value so as to adjust the humidifying speed of the isenthalpic humidifier. According to the embodiment of the invention, the energy loss in the humidification process of the machine room can be reduced, and meanwhile, the machine room is intelligently humidified.
Description
Technical Field
The invention relates to the field of humidification, in particular to a machine room air conditioning system, and a control method, a device, equipment and a medium of the system.
Background
An isothermal humidification technology is generally adopted in the existing Computer Room Air Conditioning (CRAC) equipment of a data center in the humidification process. The isothermal humidification method is a relatively simple humidification method. The common humidifying working component is an electrode humidifier or a far infrared humidifier. The two humidifying assemblies are both used for controlling the humidity of the machine room by the principle of isothermal humidification.
The working principle of the isothermal humidification technology is as follows: the method is characterized in that an external heat source is utilized to generate steam, the generated steam is directly mixed with air, and the air humidity is increased by spraying the steam to the air under the condition of not changing the air temperature. This type of method is characterized by an isothermal process, called isothermal humidification, and therefore there is a heating process in the process of converting water into steam, which results in unnecessary consumption of energy and ultimately low energy conversion efficiency.
Fig. 1 shows a humidification trace diagram of isothermal humidification, in which the horizontal axis is the relative moisture content in air, the vertical axis is temperature,
is the absolute moisture content. Fig. 1 shows 5 different humidification states. Moisture content of d corresponding to State 11The moisture content corresponding to the state 2 is d2The moisture content of state 3 corresponds to d3The moisture content of state 4 corresponds to d4The moisture content corresponding to the state 4' is d4', State 4 and State 4' lie on the isenthalpic line. The humidification trace for isothermal humidification is state 1 through state 2 to saturation state 3 in fig. 1. If the humidification is continued after the saturation state 3 is reached, the redundant steam is condensed into water, the released latent heat of vaporization enables the temperature of the saturated air to be continuously increased to reach a state 4, extra energy loss is included in the process, and the humidification efficiency is reduced.
The humidifying equipment of the existing machine room air conditioner and the machine room air conditioner are generally arranged independently. Because the refrigeration part of computer lab air conditioner constantly dehumidifies at the refrigeration in-process, and humidification equipment and computer lab air conditioner independent setting, consequently humidification equipment can carry out the humidification to the computer lab when computer lab air conditioner dehumidifies, also can cause extra energy loss to current computer lab air conditioner can't carry out the humidification speed of intelligent control humidifier according to the humidity demand in the computer lab.
Disclosure of Invention
The embodiment of the invention provides a machine room air conditioning system, and a control method, a device, equipment and a medium of the system, which can reduce energy loss in the humidification process of a machine room and realize intelligent humidification of the machine room.
According to an aspect of an embodiment of the present invention, there is provided a machine room air conditioning system including:
the humidity sensor is connected with the first control device and used for collecting the humidity in the machine room;
the enthalpy humidifier is connected with the first control device and arranged inside the machine room air conditioner;
the first control device is used for adjusting the numerical value of the operating parameter of the isenthalpic humidifier based on the difference value between the humidity and the preset humidity threshold value so as to adjust the humidifying speed of the isenthalpic humidifier.
According to another aspect of the embodiments of the present invention, there is provided a control method of a machine room air conditioning system, for the machine room air conditioning system provided by the embodiments of the present invention, the method including:
acquiring humidity in a machine room;
and adjusting the numerical value of the operating parameter of the isenthalpic humidifier based on the difference value between the humidity and the preset humidity threshold value so as to adjust the humidifying speed of the isenthalpic humidifier.
According to still another aspect of embodiments of the present invention, there is provided a control apparatus of a machine room air conditioning system, the apparatus including:
the humidity acquisition module is used for acquiring the humidity in the machine room;
and the operation parameter adjusting module is used for adjusting the numerical value of the operation parameter of the isenthalpic humidifier based on the difference value between the humidity and the preset humidity threshold value so as to adjust the humidifying speed of the isenthalpic humidifier.
According to still another aspect of an embodiment of the present invention, there is provided a control apparatus of a machine room air conditioning system, the apparatus including: a processor and a memory storing computer program instructions;
when the processor executes the computer program instructions, the control method of the air conditioning system of the computer room provided by the embodiment of the invention is realized.
According to still another aspect of an embodiment of the present invention, there is provided a computer storage medium having stored thereon computer program instructions that, when executed by a processor, implement a control method of a room air conditioning system according to an embodiment of the present invention.
According to the machine room air conditioning system and the control method, device, equipment and medium of the system in the embodiment of the invention, the isenthalpic humidifier is arranged in the machine room air conditioner, so that the extra energy loss in the humidifying process of the machine room is avoided, and the humidifying speed of the isenthalpic humidifier is adjusted by adjusting the numerical value of the operating parameter of the isenthalpic humidifier based on the difference value between the humidity and the preset humidity threshold value, so that the machine room is intelligently humidified while the energy loss is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 shows a humidification trace diagram for isothermal humidification;
fig. 2 is a schematic structural diagram of a machine room air conditioning system according to some embodiments of the present invention;
fig. 3 is a schematic structural diagram of a machine room air conditioning system according to another embodiment of the present invention;
fig. 4 is a schematic structural diagram of an air conditioning system of a machine room according to still other embodiments of the present invention;
fig. 5 is a schematic flow chart of a control method of a machine room air conditioning system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a control device of a machine room air conditioning system according to an embodiment of the present invention;
fig. 7 is a structural diagram of an exemplary hardware architecture of a control device of a machine room air conditioning system according to an embodiment of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
For a better understanding of the present invention, a machine room air conditioning system, a control method, a control device, and a medium according to embodiments of the present invention will be described in detail below with reference to the accompanying drawings, and it should be noted that these embodiments are not intended to limit the scope of the present disclosure.
Fig. 2 shows a schematic configuration diagram of a machine room air conditioning system according to an embodiment of the present invention. As shown in fig. 2, an air conditioning system for a machine room according to an embodiment of the present invention includes:
and the humidity sensor 1 is connected with the first control device 3 and used for collecting the humidity of the machine room.
And the isenthalpic humidifier 2 is connected with the first control device 3 and is arranged in the machine room air conditioner.
The first control device 3 is used for adjusting the value of the operation parameter of the isenthalpic humidifier 2 based on the difference value between the humidity and the preset humidity threshold value so as to adjust the humidifying speed of the isenthalpic humidifier 2.
In the embodiment of the invention, the isenthalpic humidification process is a humidification process in which the temperature is reduced and the humidity is kept unchanged before and after the humidification. In the isenthalpic humidification process, the moisture content of the air is increased, the relative humidity is increased, and the heat absorbed by water evaporation is directly taken from the air, so that the temperature of the air is reduced.
In the embodiment of the invention, the isenthalpic humidifier 2 is arranged in the machine room air conditioner, and the isenthalpic humidifier 2 is applied to the field of the machine room air conditioner, so that the extra energy loss in the humidifying process of the machine room is avoided. And the numerical value of the operation parameter of the isenthalpic humidifier 2 is adjusted based on the difference between the humidity and the preset humidity threshold value so as to adjust the humidifying speed of the isenthalpic humidifier 2, thereby realizing intelligent humidification of the machine room while reducing the energy loss in the humidifying process of the machine room.
In some embodiments of the present invention, the humidity sensor 1 may be a precision semiconductor humidity sensor 1. The semiconductor humidity sensor 1 can rapidly detect humidity, the response time is in millisecond level, and the precision can reach within 5%. Moreover, the semiconductor humidity sensor is not afraid of high humidity, and even if water drops appear on a detection window of the sensor, the sensor cannot be damaged, and the humidity is displayed by 100%. The semiconductor humidity sensor can continue to perform reliable and accurate detection after the water evaporates. It should be noted that the humidity sensor 1 collects the average relative humidity in the machine room.
In some embodiments of the present invention, if a first difference between the humidity in the machine room and a preset humidity threshold, which is obtained by the first control device 3, is greater than or equal to a preset difference threshold, the first value is taken as the value of the operating parameter. Wherein the isenthalpic humidifier 2 has a maximum humidification speed at the first value.
In other words, if the first difference is greater than or equal to the preset difference threshold, it represents that the humidity in the machine room is low, and in order to prevent the equipment in the machine room from being affected, the first control device 3 determines the value of the operation parameter of the isenthalpic humidifier 2 as the first value, so that the isenthalpic humidifier 2 humidifies the machine room at the maximum humidifying speed.
If the first difference is less than the preset difference threshold, determining the value of the operating parameter based on the ratio between the first difference and the preset difference threshold and the first value. Specifically, the product of the ratio of the first difference to the preset difference threshold and the first value may be used as the value of the operating parameter. As an example, if the preset humidity threshold is a, the first difference is b, and the first value is c, the first control device 3 determines the value of the operation parameter as c × b/a.
That is to say, if the first difference is smaller than the preset difference threshold, it means that the difference between the humidity in the machine room and the preset humidity threshold is small, the first control device 3 does not need to adjust the isenthalpic humidifier 2 to the maximum humidification speed, and the humidification is performed at a relatively appropriate humidification speed, so that the energy loss is avoided, and the intelligent humidification is realized.
In some embodiments of the present invention, referring to fig. 3, the isenthalpic humidifier 2 includes a second control device 21 and a humidification nebulizing device 22. The second control device 21 is connected to the first control device 3, and is configured to receive the value of the operation parameter sent by the first control device 3, and adjust the value of the operation parameter of the humidification/atomization device 22 to the received value of the operation parameter, so as to adjust the humidification speed of the isenthalpic humidifier 2. The humidifying and atomizing device 22 is connected with the second control device 21 and is used for atomizing the liquid to be atomized and humidifying the air in the machine room.
That is, after the first control device 3 determines the value of the operating parameter on the basis of the difference between the humidity and the preset humidity threshold, it sends the value of the operating parameter to the second control device 21. After receiving the value of the operation parameter sent by the first control device 3, the second control device 21 adjusts the value of the operation parameter of the humidification and atomization device 22 to the received value of the operation parameter, so as to adjust the humidification speed of the isenthalpic humidifier 2.
That is to say, through the communication between the first control device 3 and the second control device 21 of the equal enthalpy humidifier 2, the linkage control of the air conditioner of the machine room and the equal enthalpy humidifier 2 is realized, and then the humidification speed of the equal enthalpy humidifier 2 is intelligently adjusted, so that a good operation environment is provided for the equipment in the machine room.
In some embodiments of the present invention, the isenthalpic humidifier 2 may be an ultrasonic humidifier. The operating parameter of the ultrasonic humidifier is the oscillation frequency of the ultrasonic humidifier.
Wherein, the humidification process of ultrasonic humidifier does: steam is transmitted to the surface of the piezoelectric ceramic vibrator, and the piezoelectric ceramic vibrator can generate axial mechanical resonance change. This change in mechanical resonance is then transmitted to the liquid in contact with it, causing the surface of the liquid to rise and cavitation to occur around the rise. The shock wave generated by this cavitation is repeated at the oscillation frequency of the oscillator, and a surface tension wave of finite amplitude is generated on the liquid surface. The wave head of the tension wave scatters, so that the liquid is atomized into 1-3 μm fine particles. Then the water mist is diffused into the air through a pneumatic device, so that the aim of uniformly humidifying the air is fulfilled.
In the embodiment of the invention, if the atomization sheet of the ultrasonic humidifier is a ceramic substrate, the oscillation capacity reaches about 20W. In order to prolong the service life of the atomizing sheet, the atomizing sheet can be designed into a replaceable structure, the replacement is convenient, and a user can replace the atomizing sheet regularly when using the atomizing sheet.
For water with more impurities, water with more calcium content or water with higher hardness, after a period of water atomization, the concentration of the residual water in the atomization water tank is higher and higher, and impurities, water scales and the like are atomized into the air. The impurities and scale with large mass can quickly settle around the atomizer to form unsightly impurities and scale spots. In order to avoid the substances such as impurities or scale from being atomized into the air, the air outlet pipeline of the atomized air can be lengthened, so that the water vapor with larger mass and rich in impurities and scale can be deposited nearby and can not enter the air.
In some embodiments of the present invention, the ultrasonic humidifier monitors the water level of the humidifier through a water level monitoring technique. In some examples, the ultrasonic humidifier uses a capacitive sensing water level monitoring technology, and the sensed capacitance is different when there is water and when there is no water, by which the water level can be accurately and reliably monitored, avoiding the easy failure disadvantage of the common float-type water level monitoring.
And when the water level of the humidifier is monitored to be abnormal, an alarm signal is sent out. As an example, the user is alerted to add water when it is monitored that the water level of the humidifier is below a first water level. And when the water level of the humidifier is monitored to be lower than the second water level, controlling the humidifier to stop working and simultaneously giving out a water shortage alarm in order to avoid dry burning.
In some embodiments of the present invention, in order to improve the reliability of the humidifier, the plastic package housing may be replaced with a metal housing.
In some embodiments of the present invention, when the first control device 3 determines that the first difference between the humidity of the machine room and the preset humidity threshold is greater than the preset difference threshold, the first frequency is used as the oscillation frequency of the ultrasonic humidifier. The first frequency is a maximum oscillation frequency of the ultrasonic humidifier. The ultrasonic humidifier has the maximum fog output at the maximum oscillation frequency, namely, has the maximum humidifying speed.
When the first control device 3 determines that the first difference between the humidity of the machine room and the preset humidity threshold is less than or equal to the preset difference threshold, the oscillation frequency of the ultrasonic humidifier may be determined according to the ratio between the first difference and the preset difference threshold and the first frequency.
In the embodiment of the present invention, the first control device 3 acquires the humidity in the machine room through the humidity sensor 1. And the first control device 3 can control the working state of the isenthalpic humidifier 2 according to the humidity in the machine room and a preset humidity threshold value.
Specifically, the first control device 3 may determine the operating state of the isenthalpic humidifier 2 by using the relationship between the humidity in the machine room and a preset humidity threshold. If the humidity in the machine room is smaller than the preset humidity threshold value, the machine room needs to be humidified, and the first control device 3 controls the isenthalpic humidifier 2 to work. If the humidity in the machine room is larger than or equal to the preset humidity threshold value, the humidity in the machine room is appropriate, and the first control device 3 controls the isenthalpic humidifier 2 to stop working without humidification.
In some embodiments of the present invention, in order to reduce the strong interference signal of the isenthalpic humidifier 2, which is connected to other control circuits in series through a power supply, and affects the operation of other circuits, referring to fig. 4, the isenthalpic humidifier 2 further includes a power supply module 23 and a switch module 24. The first control device 3 can control the operating state of the isenthalpic humidifier 2 through the power module 23 and the switch module 24.
The power module 23 is connected to the switch module 24, and is configured to supply power to the humidification/atomization device 22. The switch module 24 is respectively connected to the first control device 3 and the second control device 21, and is configured to be in a closed state based on the closing signal, so that the power module 23 supplies power to the humidification/atomization device 22 and the isenthalpic humidifier 2 operates.
The switch module 24 is further configured to be in an off state based on the first off signal, so that the power supply module 23 stops supplying power to the humidification and atomization device 22 and stops the operation of the isenthalpic humidifier 2.
Wherein the close signal is sent by the first control means 3 in case it is determined that the humidity is lower than the preset humidity threshold value and the open signal is sent by the first control means 3 in case it is determined that the humidity is higher than or equal to the preset humidity threshold value.
That is, if the first control device 3 determines that the humidity in the machine room is less than the preset humidity threshold, it sends a close signal to the switch module 24. The switch module 24 is in a closed state upon receiving the close signal. When the switch module 24 is in the closed state, the power module 23 may supply power to the humidification/atomization device 22, that is, the second control device 21 may receive a high-level signal, so as to operate the isenthalpic humidifier 2.
If the first control device 3 determines that the humidity of the machine room is greater than or equal to the preset humidity threshold, it sends a first off signal to the switch module 24. The switch module 24 is in the off state after receiving the first off signal. When the switch module 24 is in the off state, the power module 23 stops supplying power to the humidification and atomization device 22, that is, the second control device 21 may receive the low level signal, so as to stop the operation of the isenthalpic humidifier 2.
In some embodiments of the present invention, the power module 23 may be a stand-alone 24V switching power supply, and the switching module 24 may be a solid state relay.
In an embodiment of the present invention, the first control device 3 may intelligently control the operating state of the isenthalpic humidifier 2 based on a preset humidity threshold. If the humidity is not enough, the first control device 3 controls the isenthalpic humidifier to humidify the machine room. If the humidity is too high, the first controller 3 turns off the isenthalpic humidifier. Through the operating condition of intelligent control isenthalpic humidifier 2, the energy loss is avoided under the humidity condition that equipment works in the machine room. In order to allow moisture to enter the air supply system, a fan is used to blow atomized moisture laterally into the cold air side of the evaporator.
In some embodiments of the present invention, the second control device 21 is further configured to monitor the operating state of the isenthalpic humidifier 2, and send operation abnormality information to the first control device 3 in the case where an abnormality occurs in the operating state of the isenthalpic humidifier 2.
The first control device 3 sends a second off signal to the switch module 24 based on the operation abnormality information. The switch module 24 is in an off state based on the second off signal, so that the power supply module 23 stops supplying power to the humidification/atomization device 22 and the isenthalpic humidifier 2 stops operating.
As one example, the second control device 21 may detect whether the isenthalpic humidifier 2 has various operation abnormal states such as water shortage, dry burning, voltage abnormality, current abnormality, and the like. If the second control device 21 determines that the operating state of the isenthalpic humidifier 2 is abnormal, a low-level warning signal (i.e., operating abnormality information) is sent to the first control device 3. The first control device 3 sends a second turn-off signal to the switch module 24 based on the low level alarm signal. When the switch module 24 is in the off state based on the second off signal, the power supply module 23 stops supplying power to the humidification/atomization device 22, so that the isenthalpic humidifier 2 stops operating.
In the embodiment of the present invention, the first control device 3 can acquire the operating state information of the isenthalpic humidifier 2 by communicating with the second control device 21, and timely control the isenthalpic humidifier 2 to stop operating when the operating state of the isenthalpic humidifier 2 is abnormal, thereby improving the operating safety of the isenthalpic humidifier 2.
In an embodiment of the invention, the 24V switching power supply can adapt to the characteristics of large load change of the on and off of the 24V switching power supply. The first control device 3, the second control device 21, the switch module 24 and the power module 23 are used to control the operating state of the isenthalpic humidifier 2. In order to cope with all the conditions of open circuit, full load, overload after abnormity, short circuit and the like of the load of the isenthalpic humidifier 2, the power module 23 has the functions of overload, light load, overvoltage and short circuit protection, and the actual measurement effect is good.
Table 1 below shows the performance test results of the machine room air conditioning system provided in the embodiment of the present invention.
TABLE 1
At present, the precision air conditioning equipment for communication mainly uses an electrode type or infrared type isothermal wetting method. If the relative humidity (rH) is from 6% to 60% rH by the isothermal method, the electric power is required to be consumed by 3kW if the electrode humidifier needs to consume 750W of electric power per 1kg/h of humidification amount.
If the isenthalpic ultrasonic humidification is adopted, the consumed electric power is 0.4kW when the isenthalpic ultrasonic humidification is from 15% rH to 50% rH. Compared with an isothermal humidification method, the isenthalpic humidification saves energy by 2.6 kW. Therefore, compared with the electrode steam type humidification, the ultrasonic humidifier saves 86.6 percent of energy.
Table 2 below shows changes in humidity and temperature in the air before and after the ultrasonic isenthalpic humidification.
TABLE 2
Referring to table 2, humidification and temperature reduction were simultaneously achieved in the isenthalpic humidification process, and it was found through calculation that the humidification efficiency could be as high as 95% if only ventilation humidification was considered. Therefore, the isenthalpic humidifier is arranged in the machine room air conditioner, so that the extra energy loss in the machine room humidifying process can be greatly reduced, and the humidifying efficiency can be improved.
Based on the above process, the control method applied to the machine room air conditioning system on the first control device 3 side according to the embodiment of the present invention can be summarized as the steps shown in fig. 5. Fig. 5 is a flowchart illustrating a control method 500 of the room air conditioning system on the first control device 3 side according to an embodiment of the present invention. As shown in fig. 5, the method for controlling a machine room air conditioning system in the embodiment of the present invention includes the following steps:
and S510, acquiring the humidity in the machine room.
S520, adjusting the value of the operation parameter of the isenthalpic humidifier 2 based on the difference between the humidity and the preset humidity threshold, so as to adjust the humidification speed of the isenthalpic humidifier 2.
In an embodiment of the present invention, step S520 includes the steps of:
if a first difference value between the humidity and a preset humidity threshold value is larger than or equal to a preset difference value threshold value, taking the first numerical value as a numerical value of the operation parameter; wherein the isenthalpic humidifier 2 has a maximum humidification speed at a first value;
if the first difference is smaller than the preset difference threshold, determining the value of the operation parameter based on the ratio between the first difference and the preset difference threshold and the first value to adjust the humidification speed of the isenthalpic humidifier 2.
In an embodiment of the present invention, after S510, the method further includes:
and if the humidity is less than the preset humidity threshold value, controlling the isenthalpic humidifier 2 to work, and if the humidity is greater than or equal to the preset humidity threshold value, controlling the isenthalpic humidifier 2 to stop working.
In an embodiment of the present invention, the method for controlling a machine room air conditioning system further includes:
sending the value of the operation parameter to the second control device 21, so that the second control device 21 adjusts the value of the operation parameter of the humidification/atomization device 22 to the received value of the operation parameter, so as to adjust the humidification speed of the isenthalpic humidifier 2.
In an embodiment of the present invention, the method for controlling a machine room air conditioning system further includes:
if the humidity is smaller than the preset humidity threshold, sending a closing signal to the switch module 24, so that the switch module 24 is in a closed state based on the closing signal, and the power supply module 23 supplies power to the isenthalpic humidifier 2 and enables the isenthalpic humidifier 2 to work;
if the humidity is greater than or equal to the preset humidity threshold, a first off signal is sent to the switch module 24, so that the switch module 24 is in an off state based on the first off signal, the power supply module 23 stops supplying power to the enthalpy humidifier 2, and the enthalpy humidifier 2 stops working.
In an embodiment of the present invention, the method for controlling a machine room air conditioning system further includes:
sending a second off signal to the switch module 24 based on the received work abnormality information, so that the switch module 24 is in an off state based on the second off signal, and the power supply module 23 stops supplying power to the enthalpy-equivalent humidifier 2, and the enthalpy-equivalent humidifier 2 stops working;
wherein the operation abnormality information is transmitted by the second control device 21 upon determining that the operation state of the isenthalpic humidifier 2 is abnormal.
In the embodiment of the invention, the machine room is subjected to isenthalpic humidification, so that the extra energy loss in the humidification process of the machine room is avoided, and the humidification speed of the isenthalpic humidifier 2 is adjusted by adjusting the numerical value of the operating parameter of the isenthalpic humidifier 2 based on the difference value between the humidity and the preset humidity threshold value, so that the intelligent humidification of the machine room is realized while the energy loss is reduced.
Fig. 6 is a schematic structural diagram illustrating a control device of a machine room air conditioning system according to an embodiment of the present invention. As shown in fig. 6, the control device 600 of the room air conditioning system includes:
and the humidity obtaining module 610 is used for obtaining the humidity in the machine room.
And the operation parameter adjusting module 620 is configured to adjust a value of an operation parameter of the isenthalpic humidifier 2 based on a difference between the humidity and the preset humidity threshold, so as to adjust a humidification speed of the isenthalpic humidifier 2.
In an embodiment of the present invention, the operation parameter adjusting module 620 is specifically configured to:
if a first difference value between the humidity and a preset humidity threshold value is larger than or equal to a preset difference value threshold value, taking the first numerical value as a numerical value of the operation parameter; wherein the isenthalpic humidifier 2 has a maximum humidification speed at a first value;
if the first difference is smaller than the preset difference threshold, determining the value of the operation parameter based on the ratio between the first difference and the preset difference threshold and the first value to adjust the humidification speed of the isenthalpic humidifier 2.
In an embodiment of the present invention, the control device of the air conditioning system in the machine room further includes a working state control module, configured to:
and if the humidity is less than the preset humidity threshold value, controlling the isenthalpic humidifier 2 to work, and if the humidity is greater than or equal to the preset humidity threshold value, controlling the isenthalpic humidifier 2 to stop working.
In an embodiment of the present invention, the control device of the air conditioning system in the machine room further includes a value sending module, configured to send a value of the operation parameter to the second control device 21, so that the second control device 21 adjusts the value of the operation parameter of the humidification/atomization device 22 to the received value of the operation parameter, so as to adjust the humidification speed of the isenthalpic humidifier 2.
In an embodiment of the present invention, the control device of the air conditioning system of the machine room further includes:
and the closing signal sending module is configured to send a closing signal to the switch module 24 if the humidity is smaller than the preset humidity threshold, so that the switch module 24 is in a closing state based on the closing signal, the power supply module 23 supplies power to the isenthalpic humidifier 2, and the isenthalpic humidifier 2 operates.
The first off signal sending module is configured to send a first off signal to the switch module 24 if the humidity is greater than or equal to the preset humidity threshold, so that the switch module 24 is in an off state based on the first off signal, the power supply module 23 stops supplying power to the enthalpy humidifier 2, and the enthalpy humidifier 2 stops working.
In an embodiment of the present invention, the control device of the air conditioning system of the machine room further includes:
and the second off signal sending module is configured to send a second off signal to the switch module 24 based on the received operation abnormality information, so that the switch module 24 is in an off state based on the second off signal, and the power supply module 23 stops supplying power to the enthalpy humidifier 2, and stops operating the enthalpy humidifier 2.
Wherein the operation abnormality information is transmitted by the second control device 21 upon determining that the operation state of the isenthalpic humidifier 2 is abnormal.
In the embodiment of the invention, the machine room is subjected to isenthalpic humidification, so that the extra energy loss in the humidification process of the machine room is avoided, and the humidification speed of the isenthalpic humidifier 2 is adjusted by adjusting the numerical value of the operating parameter of the isenthalpic humidifier 2 based on the difference value between the humidity and the preset humidity threshold value, so that the intelligent humidification of the machine room is realized while the energy loss is reduced.
Other details of the control device of the air conditioning system of the computer room according to the embodiment of the present invention are similar to those of the control method of the air conditioning system of the computer room according to the embodiment of the present invention described above with reference to fig. 5, and are not repeated herein.
The control method and apparatus of the room air conditioning system according to the embodiment of the present invention described in conjunction with fig. 5 to 6 may be implemented by a control device of the room air conditioning system. Fig. 7 is a schematic diagram showing a hardware configuration 700 of a control device of a machine room air conditioning system according to an embodiment of the present invention.
As shown in fig. 7, the control device 700 of the machine room air conditioning system in the present embodiment includes: a processor 701, a memory 702, a communication interface 703 and a bus 710, wherein the processor 701, the memory 702 and the communication interface 703 are connected by the bus 710 and communicate with each other.
In particular, the processor 701 may include a Central Processing Unit (CPU), or A Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement an embodiment of the present invention.
Memory 702 may include a mass storage for data or instructions. By way of example, and not limitation, memory 702 may include an HDD, floppy disk drive, flash memory, optical disk, magneto-optical disk, magnetic tape, or Universal Serial Bus (USB) drive, or a combination of two or more of these. Memory 702 may include removable or non-removable (or fixed) media, where appropriate. The memory 702 may be internal or external to the control device 700 of the room air conditioning system, where appropriate. In a particular embodiment, the memory 702 is non-volatile solid-state memory. In a particular embodiment, the memory 702 includes Read Only Memory (ROM). Where appropriate, the ROM may be mask-programmed ROM, Programmable ROM (PROM), Erasable PROM (EPROM), Electrically Erasable PROM (EEPROM), electrically rewritable ROM (EAROM), or flash memory or a combination of two or more of these.
The communication interface 703 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiment of the present invention.
The bus 710 includes hardware, software, or both to couple the components of the control device 700 of the room air conditioning system to one another. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. Bus 710 may include one or more buses, where appropriate. Although specific buses have been described and shown in the embodiments of the invention, any suitable buses or interconnects are contemplated by the invention.
That is, the control apparatus 700 of the machine room air conditioning system shown in fig. 7 may be implemented to include: a processor 701, a memory 702, a communication interface 703, and a bus 710. The processor 701, the memory 702, and the communication interface 703 are coupled via a bus 710 and communicate with each other. The memory 702 is used to store program code; the processor 701 executes a program corresponding to the executable program code by reading the executable program code stored in the memory 702 for executing the control method of the air conditioning system of the computer room in any embodiment of the present invention, thereby implementing the control method and apparatus of the air conditioning system of the computer room described in conjunction with fig. 5 to 6.
The embodiment of the invention also provides a computer storage medium, wherein the computer storage medium is stored with computer program instructions; the computer program instructions, when executed by a processor, implement a control method for a room air conditioning system provided by an embodiment of the invention.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As will be apparent to those skilled in the art, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (16)
1. A machine room air conditioning system, the system comprising:
the humidity sensor is connected with the first control device and used for collecting the humidity in the machine room;
the enthalpy humidifier is connected with the first control device and arranged inside the machine room air conditioner;
the first control device is used for adjusting the numerical value of the operating parameter of the isenthalpic humidifier based on the difference value between the humidity and the preset humidity threshold value so as to adjust the humidifying speed of the isenthalpic humidifier.
2. The system of claim 1, wherein the first control device is configured to take the first value as the value of the operating parameter if a first difference between the humidity and the predetermined humidity threshold is greater than or equal to a predetermined difference threshold; wherein the isenthalpic humidifier has a maximum humidification speed at the first value;
the first control device is further configured to determine the value of the operating parameter based on a ratio between the first difference and the preset difference threshold and the first value if the first difference is less than the preset difference threshold.
3. The system of claim 1, wherein the isenthalpic humidifier is an ultrasonic humidifier and the operating parameter is an oscillation frequency of the ultrasonic humidifier.
4. The system of claim 1, wherein the first control device is further configured to control the isenthalpic humidifier to operate if the humidity is less than the preset humidity threshold, and to control the isenthalpic humidifier to stop operating if the humidity is greater than or equal to the preset humidity threshold.
5. The system of claim 1, wherein the isenthalpic humidifier comprises:
the second control device is connected with the first control device and used for receiving the numerical value of the operating parameter sent by the first control device and adjusting the value of the operating parameter of the humidifying and atomizing device to the received numerical value of the operating parameter so as to adjust the humidifying speed of the isenthalpic humidifier;
and the humidification and atomization device is connected with the second control device and is used for atomizing the liquid to be atomized and humidifying the air in the machine room.
6. The system of claim 5, wherein the isenthalpic humidifier further comprises:
the power supply module is connected with the switch module and used for supplying power to the humidifying and atomizing device;
the switch module is respectively connected with the first control device and the second control device and is used for being in a closed state based on a closing signal so as to enable the power supply module to supply power to the humidification and atomization device and enable the isenthalpic humidifier to work;
the switch module is also used for being in a disconnected state based on the first disconnection signal so as to enable the power supply module to stop supplying power to the humidification and atomization device and enable the isenthalpic humidifier to stop working;
wherein the close signal is sent by the first control device when determining that the humidity is less than the preset humidity threshold, and the open signal is sent by the first control device when determining that the humidity is greater than or equal to the preset humidity threshold.
7. The system of claim 6, wherein the second control device is further configured to monitor an operating state of the isenthalpic humidifier and send operation abnormality information to the first control device if the operating state of the isenthalpic humidifier is abnormal;
the first control device is also used for sending a second disconnection signal to the switch module based on the work abnormity information;
the switch module is also used for being in a disconnected state based on the second disconnection signal, so that the power supply module stops supplying power to the humidification and atomization device and the isenthalpic humidifier stops working.
8. A control method of a machine room air conditioning system for a machine room air conditioning system according to any one of claims 1 to 7, characterized by comprising:
acquiring humidity in a machine room;
and adjusting the numerical value of the operating parameter of the isenthalpic humidifier based on the difference value between the humidity and a preset humidity threshold value so as to adjust the humidifying speed of the isenthalpic humidifier.
9. The method of claim 8, wherein said adjusting a value of an operating parameter of the isenthalpic humidifier based on a difference between the humidity and a preset humidity threshold to adjust a humidification speed of the isenthalpic humidifier comprises:
if a first difference between the humidity and the preset humidity threshold is greater than or equal to a preset difference threshold, taking a first value as a value of the operation parameter; wherein the isenthalpic humidifier has a maximum humidification speed at the first value;
if the first difference is smaller than the preset difference threshold, determining the value of the operating parameter based on the ratio between the first difference and the preset difference threshold and the first value so as to adjust the humidification speed of the isenthalpic humidifier.
10. The method of claim 8, wherein after the obtaining the humidity within the room, the method further comprises:
if the humidity is smaller than the preset humidity threshold value, the isenthalpic humidifier is controlled to work, and if the humidity is larger than or equal to the preset humidity threshold value, the isenthalpic humidifier is controlled to stop working.
11. The method according to claim 8, wherein the isenthalpic humidifier comprises a second control device connected with the first control device and a humidifying and atomizing device connected with the second control device, wherein the humidifying and atomizing device is used for atomizing the liquid to be atomized and humidifying the air in the machine room;
wherein the method further comprises:
and sending the numerical value of the operating parameter to the second control device, so that the second control device adjusts the value of the operating parameter of the humidifying and atomizing device to the received numerical value of the operating parameter, and the humidifying speed of the isenthalpic humidifier is adjusted.
12. The method of claim 11, wherein the isenthalpic humidifier further comprises a power module and a switch module connected to the power module, the switch module further connected to the first control device and the second control device, respectively;
wherein the method further comprises:
if the humidity is smaller than the preset humidity threshold value, sending a closing signal to the switch module so that the switch module is in a closing state based on the closing signal, and enabling the power supply module to supply power to the isenthalpic humidifier and enable the isenthalpic humidifier to work;
if the humidity is larger than or equal to the preset humidity threshold value, a first disconnection signal is sent to the switch module, so that the switch module is in a disconnection state based on the first disconnection signal, the power supply module stops supplying power to the isenthalpic humidifier, and the isenthalpic humidifier stops working.
13. The method of claim 12, further comprising:
sending a second disconnection signal to the switch module based on the received work abnormality information, so that the switch module is in a disconnection state based on the second disconnection signal, the power supply module stops supplying power to the isenthalpic humidifier, and the isenthalpic humidifier stops working;
wherein the operation abnormality information is transmitted by the second control device in a case where it is determined that the operation state of the isenthalpic humidifier is abnormal.
14. A control device of a machine room air conditioning system, characterized in that the device comprises:
the humidity acquisition module is used for acquiring the humidity in the machine room;
and the operation parameter adjusting module is used for adjusting the numerical value of the operation parameter of the isenthalpic humidifier based on the difference value between the humidity and the preset humidity threshold value so as to adjust the humidifying speed of the isenthalpic humidifier.
15. A control apparatus of a machine room air conditioning system, characterized in that the apparatus comprises: a processor and a memory storing computer program instructions;
the processor, when executing the computer program instructions, implements a control method for a room air conditioning system as claimed in any one of claims 8 to 13.
16. A computer storage medium, characterized in that the computer storage medium has stored thereon computer program instructions which, when executed by a processor, implement the control method of a room air conditioning system according to any one of claims 8 to 13.
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