CN110749052B - Heat dissipation equipment and control method - Google Patents
Heat dissipation equipment and control method Download PDFInfo
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- CN110749052B CN110749052B CN201910969892.9A CN201910969892A CN110749052B CN 110749052 B CN110749052 B CN 110749052B CN 201910969892 A CN201910969892 A CN 201910969892A CN 110749052 B CN110749052 B CN 110749052B
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- 230000017525 heat dissipation Effects 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 50
- 239000000498 cooling water Substances 0.000 claims abstract description 91
- 239000003507 refrigerant Substances 0.000 claims abstract description 60
- 238000001816 cooling Methods 0.000 claims abstract description 40
- 230000001276 controlling effect Effects 0.000 claims description 30
- 230000001105 regulatory effect Effects 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 11
- 238000004590 computer program Methods 0.000 description 6
- 239000002274 desiccant Substances 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 3
- 238000010926 purge Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013500 data storage Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/40—Vibration or noise prevention at outdoor units
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F24F2110/40—Pressure, e.g. wind pressure
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application discloses a heat dissipation device and a control method, relates to the field of heat dissipation, and is used for heat dissipation and noise reduction of an air conditioner outdoor unit. The method comprises the following steps: first circulating device, cooling tower, predetermine heat exchanger, circulating pump, controlling means. The refrigerant in the first circulating device is precooled by utilizing the cooling tower and the preset heat exchanger, so that the working load of the condenser is reduced, the noise and consumption of an outdoor fan are reduced, and the safe and reliable operation of the equipment is ensured. And the control device is used for acquiring a preset pressure value Y1 of a refrigerant inlet of the heat exchanger, a preset pressure value Y2 of a refrigerant outlet of the condenser, a preset pressure value Y3 of a cooling water inlet of the heat exchanger and a preset pressure value Y4 of a cooling water outlet of the heat exchanger, so as to control and regulate the working conditions of all devices in the heat dissipation equipment. Therefore, the heat dissipation efficiency of the equipment is improved, the rotating speed of the outdoor fan in the first circulating device can be reduced, and the vibration of the fan and the noise generated by airflow are reduced. The embodiment of the application is applied to the outdoor unit of the air conditioner.
Description
Technical Field
The invention relates to the field of heat dissipation, in particular to heat dissipation equipment and a control method.
Background
The power density is continuously increased along with the increase of data transmission service volume, the existing communication machine room mostly adopts a unit type air conditioning unit, an outdoor unit condenser is placed on a top floor roof or is installed on an outer wall vertical surface, the heat dissipation of the unit is more tightly influenced by the installation of the outdoor unit due to the limitation of space resources, and meanwhile, the air inlet and the air outlet of the outdoor unit are easy to cause the heat accumulation by the heat island effect formed by the short circuit of air flow at local parts. The insufficient heat dissipation capacity of the outdoor unit of the air conditioner can affect the operation efficiency of the air conditioner, and various faults of the air conditioner are caused. Especially in summer, the unit type air conditioning unit often has outdoor unit high temperature high pressure to report an emergency and ask for help or increased vigilance when actually operating, and the fan is in high-speed operation for a long time, and fan vibrations and air current can produce very big noise.
Disclosure of Invention
The embodiment of the application provides a heat dissipation device and a control method, which are used for improving the heat dissipation efficiency of the device, reducing the workload of a condenser and reducing the rotating speed of an outdoor fan, so that the noise of the outdoor fan and the consumption of the device are reduced, and the safe and reliable operation of the device is ensured.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
in a first aspect, a heat dissipation device is provided, the device comprising: the system comprises a first circulating device, a cooling tower, a preset heat exchanger, a circulating pump and a control device; wherein: the first circulating device adopts the heat pump principle to carry out heat exchange; a compressor air outlet in the first circulating device is connected with a refrigerant inlet of the preset heat exchanger, and a refrigerant outlet of the preset heat exchanger is connected with a condenser; the preset heat exchanger also comprises a cooling water inlet and a cooling water outlet; the cooling water inlet and the cooling water outlet are respectively connected with the cooling tower; the circulating pump is used for enabling cooling water to flow through the preset heat exchanger through the cooling water inlet and the cooling water outlet; the control device is used for acquiring a preset pressure value Y1 of a refrigerant inlet of the heat exchanger, a preset pressure value Y2 of a refrigerant outlet of the condenser, a preset pressure value Y3 of a cooling water inlet of the heat exchanger and a preset pressure value Y4 of a cooling water outlet of the heat exchanger; the control device is also used for controlling a condensing fan and a circulating pump of the condenser to adjust the flow rate of the cooling water flowing through the preset heat exchanger according to the change conditions of the preset pressure value Y1 of the refrigerant inlet of the heat exchanger, the pressure value Y2 of the refrigerant outlet of the condenser, the preset pressure value Y3 of the cooling water inlet of the heat exchanger and the preset pressure value Y4 of the cooling water outlet of the heat exchanger.
In a second aspect, a control method is provided, the method comprising: acquiring a pressure value Y1 of a preset heat exchanger refrigerant inlet, a pressure value Y2 of a condenser refrigerant outlet, a pressure value Y3 of a preset heat exchanger cooling water inlet and a pressure value Y4 of a preset heat exchanger cooling water outlet; and controlling a condensing fan and a circulating pump of the condenser to adjust the flow rate of the cooling water flowing through the preset heat exchanger according to the change conditions of a pressure value Y1 at the refrigerant inlet of the preset heat exchanger, a pressure value Y2 at the refrigerant outlet of the condenser, a pressure value Y3 at the cooling water inlet of the preset heat exchanger and a pressure value Y4 at the cooling water outlet of the preset heat exchanger.
In a third aspect, there is provided a control apparatus comprising: a processor, a memory, and a communication interface; wherein the memory is used for storing one or more programs, the one or more programs include computer-executable instructions, and when the control device runs, the processor executes the computer-executable instructions stored in the memory, so as to enable the control device to execute the control method of the second aspect.
According to the heat dissipation device and the control method, the refrigerant in the first circulating device is pre-cooled by utilizing the cooling tower and the preset heat exchanger, so that the working load of the condenser is reduced, the noise and consumption of the outdoor fan are reduced, and the safe and reliable operation of the device is guaranteed. And the control device is used for acquiring a preset pressure value Y1 of a refrigerant inlet of the heat exchanger, a preset pressure value Y2 of a refrigerant outlet of the condenser, a preset pressure value Y3 of a cooling water inlet of the heat exchanger and a preset pressure value Y4 of a cooling water outlet of the heat exchanger, so as to control and regulate the working conditions of all devices in the heat dissipation equipment. Therefore, the heat dissipation efficiency of the equipment is improved, the rotating speed of the outdoor fan in the first circulating device can be reduced, and the vibration of the fan and the noise generated by airflow are reduced.
Drawings
Fig. 1 is a schematic structural diagram of a heat pump apparatus using a heat pump principle according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a heat dissipation apparatus according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a control device according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a control device according to an embodiment of the present application;
fig. 5 is a schematic flow chart of another control device provided in the embodiment of the present application;
fig. 6 is a schematic structural diagram of another control device provided in the embodiment of the present application;
fig. 7 is a schematic structural diagram of another control device according to an embodiment of the present application.
Reference numerals:
in the figure, 10a, a first circulation device, 10b, a first circulation device, 101, a compressor, 101a, a compressor, 101b, a compressor, 102, a condenser, 102a, a condenser, 102b, a condenser, 103, a condensing fan, 103a, a condensing fan, 103b, a condensing fan, 104, a desiccant, 104a, a desiccant, 104b, a desiccant, 105, an expansion regulating valve, 105a, an expansion regulating valve, 106, an evaporator, 106a, an evaporator, 106b, an evaporator, 107a, a preset heat exchanger, 107b, a circulation pump, 201b, a circulation pump, 202a electromagnetic regulating valve, 202b, an electromagnetic regulating valve, 203, a cooling tower, 204, a vent valve, 205, a water replenishing pump, 206, a tank, 207, a water discharging and accumulating fan, 301, a control device, 302, a first pressure detector, 303, a second pressure detector, 304, a third pressure detector, 305, and a fourth pressure detector.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless otherwise explicitly stated or limited. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, when the description is given to the pipeline, "connected" and "connected" used in the present invention have the meaning of conducting. The specific meaning is to be understood in conjunction with the context.
In the description of this application, "/" means "or" unless otherwise stated, for example, A/B may mean A or B. "and/or" herein is merely an association describing an associated object, and means that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Further, "at least one" means one or more, "a plurality" means two or more. The terms "first", "second", and the like do not necessarily limit the number and execution order, and the terms "first", "second", and the like do not necessarily limit the difference.
The following briefly introduces some concepts related to embodiments of the present application.
The invention relates to a heat pump principle, in particular to a method for controlling the temperature in a target area by utilizing the heat absorption and heat release phenomena in the state change process of a refrigerant. Specifically, as shown in fig. 1, a schematic structural diagram of a heat pump device adopting a heat pump principle according to the present invention is provided. The heat pump device mainly comprises a compressor 101, a condenser 102, a condensing fan 103, a drying agent 104, an expansion regulating valve 105, an evaporator 106 and the like. After the power is turned on, the outdoor air is heat-exchanged by the evaporator 106, the air having a reduced temperature is discharged from the system by the fan, and at the same time, the refrigerant inside the evaporator 106 absorbs heat and is evaporated and sucked into the compressor 101, the compressor 101 compresses the low-pressure refrigerant gas into a high-temperature and high-pressure gas, and sends the high-temperature and high-pressure gas into the condenser 102, and the refrigerant is cooled into a liquid, and the liquid is throttled and cooled by the expansion regulating valve 105 and then flows into the evaporator 106 again, and the cycle is repeated, so that the refrigeration can be realized by the heat absorption.
The unit type air conditioning unit adopted in the existing communication machine room generally utilizes the heat pump device to refrigerate and cool the machine room. In the unit air conditioning unit used in the communication equipment room, the condenser 102 is installed in an outdoor unit located on a ceiling or an outer wall facade. Due to the limitation of space resources, the heat dissipation of the unit is affected by the installation of the outdoor unit, and meanwhile, the air inlet and the air outlet of the outdoor unit are easy to cause the problems of heat accumulation and the like caused by the heat island effect formed by the short circuit of air flow at local parts, so that the heat dissipation is affected. In addition, the insufficient heat dissipation capacity of the outdoor unit of the air conditioner affects the operation efficiency of the air conditioner, and various faults of the air conditioner are caused. Especially in summer, the unit type air conditioning unit often has the outdoor unit high temperature high pressure to report an emergency and ask for help or increased vigilance when actually operating, and the fan is in high-speed operation for a long time, and fan vibrations and air current can produce very big noise scheduling problem.
To solve the above problem, the heat dissipation apparatus provided by the present application utilizes: the heat dissipation device which adopts the heat pump principle to dissipate heat and the heat dissipation device which adopts the water cooling mode to dissipate heat are combined to obtain a new heat dissipation device. Therefore, the working efficiency of the heat dissipation device is improved, and the problem that the long-term high-speed operation of a heat dissipation fan in a heat dissipation device for dissipating heat by adopting a heat pump principle in the prior art can generate noise is solved.
Further, in order to control the heat dissipation device more conveniently and achieve a better heat dissipation effect, the application also provides a control method for the heat dissipation device, so that the heat dissipation device runs reasonably, and further the working efficiency and the safety are improved.
The first embodiment is as follows:
based on the above inventive concept, as shown in fig. 2, a schematic structural diagram of a heat dissipation apparatus provided in an embodiment of the present invention is shown, where the heat dissipation apparatus includes: a first circulation device 10a, a cooling tower 203, a preset heat exchanger 107a and a circulation pump 201a.
In addition, as shown in fig. 4, the heat dissipation apparatus provided by the present invention further includes a control device 301. Wherein:
specifically, the first cycle device 10a performs heat exchange using the heat pump principle. Illustratively, as shown in fig. 2, the first circulating device 10a specifically includes: compressor 101a, condenser 102a, condensing fan 103a, desiccant 104a, expansion regulating valve 105a, evaporator 106a. However, the principle is the same as that of the heat pump apparatus shown in fig. 1, in which, after the power is turned on, outdoor air is heat-exchanged by the evaporator 106a, the air having a reduced temperature is discharged from the system by the fan, and at the same time, the refrigerant inside the evaporator 106a absorbs heat and is evaporated and sucked into the compressor 101a, the compressor 101a compresses the low-pressure refrigerant gas into a high-temperature and high-pressure gas, and sends the high-temperature and high-pressure gas into the condenser 102a, and the refrigerant is cooled into a liquid, and the liquid is throttled and cooled by the expansion regulating valve 105a and then flows into the evaporator 106a again, and the cycle is repeated, so that refrigeration can.
In addition, the outlet of the compressor 101a in the first circulation device 10a is connected to the condenser 102a through a preset heat exchanger 107a. In the preset heat exchanger 107a, the refrigerant inlet and the refrigerant outlet communicate. Thus, the refrigerant is discharged from the outlet of the compressor 101a, and then is output to the condenser 102a in the outdoor unit through the predetermined heat exchanger 107a, thereby implementing a refrigeration cycle.
In addition, the preset heat exchanger 107a further includes a cooling water inlet and a cooling water outlet. Wherein, in the preset heat exchanger 107a, the cooling water inlet and the cooling water outlet are communicated. And the cooling water inlet and the cooling water outlet are respectively connected with the cooling tower 203. For example, the cooling water inlet is connected to the water outlet of the cooling tower 203, and the cooling water outlet is connected to the water inlet of the cooling tower 203.
The circulation pump 201a is used to flow the cooling water through the preset heat exchanger 107a through the cooling water inlet and the cooling water outlet. Specifically, in one implementation, as shown in fig. 2, a circulation pump 201a is connected between the cooling water inlet and the water outlet of the cooling tower 203, so that when the circulation pump 201a is activated, the cooling water can be driven to circulate in a flowing manner between the cooling tower 203 and the preset heat exchanger 107a.
Further, the high-temperature and high-pressure gas discharged from the compressor 101a is subjected to heat exchange in the preset heat exchanger 107a, and the heat of the refrigerant flowing through the preset heat exchanger 107a is absorbed by the cooling water flowing through the preset heat exchanger 107a. The refrigerant passes through the preset heat exchanger 107a and then enters the condenser 102a, where the refrigerant is heat-exchanged again in the condenser 102a.
Specifically, the control device 301 is configured to collect a preset pressure value Y1 at the refrigerant inlet of the heat exchanger 107a, a preset pressure value Y2 at the refrigerant outlet of the condenser 102a, a preset pressure value Y3 at the cooling water inlet of the heat exchanger 107a, and a preset pressure value Y4 at the cooling water outlet of the heat exchanger 107a. The control device 301 is further configured to control the condensing fan 103a and the circulating pump 201a of the condenser 102a to adjust the flow rate of the cooling water flowing through the preset heat exchanger 107a according to changes of the pressure value Y1 at the refrigerant inlet of the preset heat exchanger 107a, the pressure value Y2 at the refrigerant outlet of the condenser 102a, the pressure value Y3 at the cooling water inlet of the preset heat exchanger 107a, and the pressure value Y4 at the cooling water outlet of the preset heat exchanger 107a.
Optionally, the control device 301 is further configured to control the circulation pump 201a to operate and control the condensation fan 103a of the condenser 102a to operate when Δ YL is lower than the first threshold. When the Δ YL is lower than the second threshold, the heat dissipation device exceeds the heat dissipation capacity of the device, and the control device 301 sends an alarm. Wherein the first threshold is greater than the second threshold, Δ YL ═ Y1-Y2. The cooling tower 203 includes: spray device, hot air exhaust machine 207. The spraying device is used for spraying and radiating heat of the heat radiating device in the cooling tower 203, and the heat exhausting fan 207 is used for exhausting hot air in the cooling tower out of the cooling tower. The control device 301 is specifically further configured to control the spraying device to operate and the hot air exhaust fan 207 to operate when Δ YS is higher than a third threshold value. Wherein Δ YS ═ Y4-Y3.
Optionally, the heat dissipation apparatus further includes: electromagnetic regulating valve 202a, air relief valve 204, make-up water pump 205, water storage tank 206. Wherein: an electromagnetic adjusting valve 202a is provided on the bypass pipe on the cooling water side of the preset heat exchanger 107a, and the electromagnetic adjusting valve 202a is used for adjusting the flow rate of cooling water in the cooling tower 203. The purge valve 204 is used to discharge the gas present in the cooling tower 203. The make-up pump 205 and the reservoir 206 are used to make up cooling water for the cooling tower 203.
Optionally, in the heat dissipation apparatus, cooling water flows through the inside of the U-shaped tube in the preset heat exchanger 107a, and a refrigerant flows through the outside of the U-shaped tube in the preset heat exchanger 107a.
In one implementation, the cooling water in the cooling tower 203 is pre-cooled by the preset heat exchanger 107a, and then is subjected to heat dissipation through the cooling tower 203 and the spraying device. The circulating pump provides power for the circulation of the cooling water.
In some implementations, the heat dissipation apparatus provided by the present invention may specifically include a plurality of first circulation devices for dissipating heat of a plurality of different spaces. Illustratively, as shown in fig. 2, a first circulation device 10b is included in addition to the first circulation device 10a. Wherein the first circulating device 10b includes: compressor 101b, condenser 102b, condensing fan 103b, desiccant 104b, expansion regulating valve 105b, and evaporator 106b. In addition, in order to connect the first circulation device 10b with the cooling tower, the heat dissipation apparatus of the present invention further includes a circulation pump 201b and an electromagnetic adjustment valve 202b. It is understood that the operation of each component in the first circulation device 10b can refer to the corresponding description of each component in the first circulation device 10a and the first circulation device 10a, and the repeated description is omitted.
Example two:
the embodiment of the invention provides a control method, and the control method provided by the embodiment of the invention is used for controlling the heat dissipation equipment provided by the first embodiment of the invention.
In order to implement the control method provided by the present invention, a sensor and a detection device may be added to the heat dissipation apparatus provided in the first embodiment to detect parameters required in the control method provided by the present invention. Specifically, as shown in fig. 4, a schematic structural diagram of a first circulation device 10a in the heat dissipation apparatus according to the embodiment of the present invention is provided.
A first pressure detector 302 is provided at the refrigerant inlet of the preset heat exchanger 107a, a second pressure detector 303 is provided at the refrigerant outlet of the condenser 102a, a third pressure detector 304 is provided at the cooling water inlet of the preset heat exchanger 107a, and a fourth pressure detector 305 is provided at the cooling water outlet of the preset heat exchanger 107a. The first pressure detector 302, the second pressure detector 303, the third pressure detector 304, and the fourth pressure detector 305 are connected to the control device 301.
The control method provided by the present application is described below with reference to the schematic structural diagram of the first circulation device 10a in the heat dissipation apparatus shown in fig. 4. Specifically, as shown in fig. 3, the method includes:
s401, acquiring a preset pressure value Y1 of the refrigerant inlet of the heat exchanger 107a, a pressure value Y2 of the refrigerant outlet of the condenser 102a, a preset pressure value Y3 of the cooling water inlet of the heat exchanger 107a and a preset pressure value Y4 of the cooling water outlet of the heat exchanger 107a.
And S402, controlling a condensation fan 103a and a circulating pump 201a of the condenser 102a to adjust the flow rate of the cooling water flowing through the preset heat exchanger 107a according to the change of the pressure value Y1 of the refrigerant inlet of the preset heat exchanger 107a, the pressure value Y2 of the refrigerant outlet of the condenser 102a, the pressure value Y3 of the cooling water inlet of the preset heat exchanger 107a and the pressure value Y4 of the cooling water outlet of the preset heat exchanger 107a.
Optionally, in step S102, controlling the condensation fan 103a and the circulation pump 201a of the condenser 102a to adjust the flow rate of the cooling water flowing through the preset heat exchanger 107a specifically includes:
s4021, when the delta YL is lower than a first threshold value, controlling the circulating pump 201a to work, and controlling the condensation fan 103a of the condenser 102a to work.
S4022, when the delta YL is lower than a second threshold, the heat dissipation device exceeds the heat dissipation capacity of the device, and an alarm is given out. Wherein the first threshold is greater than the second threshold, Δ YL ═ Y1-Y2.
S4023, when the delta YS is higher than a third threshold value, the electromagnetic regulating valve 202 is closed, the spraying device is controlled to work, and the hot air exhaust machine 207 works. Wherein Δ YS ═ Y4-Y3.
When the above method is implemented by a computer program, the steps of the method provided in the embodiment of the present application, as shown in fig. 5, specifically include the following steps:
and S501, data acquisition.
The method comprises the following steps: the pressure value Y1 of the refrigerant inlet of the heat exchanger 107a, the pressure value Y2 of the refrigerant outlet of the condenser 102a, the pressure value Y3 of the cooling water inlet of the heat exchanger 107a and the pressure value Y4 of the cooling water outlet of the heat exchanger 107a are collected. I.e. the content of step S401 described above is executed.
And S502, obtaining the delta YL as Y1-Y2, and judging the size relation between the delta YL and the first threshold value. If Δ YL is lower than the first threshold, S503 is executed; if Δ YL is not lower than the first threshold, S504 is executed.
And S503, when the delta YL is lower than a first threshold value, controlling the circulating pump 201a to work, and controlling the condensation fan 103a of the condenser 102a to work.
And S504, when the delta YL is not lower than the first threshold, controlling the circulating pump 201a to work, and controlling the condensing fan 103a of the condenser 102a not to work.
And S505, judging the size relation between the delta YL and the second threshold value. If Δ YL is lower than the second threshold, S506 is executed; if Δ YL is not lower than the second threshold, return is made to S502.
And S506, when the delta YL is lower than a second threshold value, the heat dissipation device exceeds the heat dissipation capacity of the device, and the control device 301 gives an alarm.
And S507, obtaining the delta YS as Y4-Y3, and judging the size relation between the delta YS and the third threshold value. If Δ YS is higher than the third threshold, then S508 is executed; if Δ YS is not higher than the third threshold value, S509 is executed.
And S508, when the delta YS is higher than a third threshold value, closing the electromagnetic regulating valve 202a, controlling the spraying device to work, and controlling the hot air exhaust machine 207 to work.
And S509, when the delta YS is not higher than a third threshold value, closing the electromagnetic regulating valve 202a, controlling the spraying device to work, and enabling the hot air exhaust fan 207 not to work.
Optionally, when the control device 301 detects that the pressure value of the cooling water in the cooling tower 203 is lower than the fourth threshold, the water replenishing pump 205 is controlled to start replenishing the cooling water to the cooling tower 203. When the control device 301 detects the presence of gas in the cooling tower 203, the purge valve 204 is controlled to open to discharge the gas.
Optionally, the control device 301 further controls the condensing fan 103a to be turned on when the rotation speed of the circulating pump 201a reaches a maximum.
In some implementations, the control methods provided herein can be particularly useful for controlling a plurality of first cycle devices. For example, the control method provided by the present invention can control corresponding elements in the first circulation device 10b in fig. 2, in addition to the first circulation device 10a in fig. 2. It is understood that the control method provided by the present invention controls corresponding components in the first circulation device 10b, and reference may be made to the control description of the components in the first circulation device 10a by the control method, and repeated descriptions are omitted.
Example three:
the embodiment of the present invention provides a control device 301, configured to execute the control method provided in the second embodiment. Fig. 6 is a schematic structural diagram of a control device 301 according to an embodiment of the present invention. Specifically, the control device 301 includes: a processor 601, a memory 602, and a communication interface 603. The memory 602 is configured to store one or more programs, where the one or more programs include computer executable instructions, and when the control apparatus 301 runs, the processor 601 executes the computer executable instructions stored in the memory 602, so as to enable the control apparatus 301 to execute the control method provided in the second embodiment.
Example four:
the embodiment of the present invention further provides a control device 301, configured to implement the related functions of the control method provided in the second embodiment. Specifically, as shown in fig. 7, a schematic structural diagram of a control device 301 according to an embodiment of the present invention is provided. Specifically, the control device 301 includes: an acquisition unit 701 and a control unit 702. Wherein:
the obtaining unit 701 specifically includes: the first pressure detector 302 acquires a preset pressure value Y1 of the refrigerant inlet of the heat exchanger 107a, the second pressure detector 303 acquires a pressure value Y2 of the refrigerant outlet of the condenser 102a, the third pressure detector 304 acquires a preset pressure value Y3 of the cooling water inlet of the heat exchanger 107a, and the fourth pressure detector 305 acquires a preset pressure value Y4 of the cooling water outlet of the heat exchanger 107a.
The control unit 702 is specifically configured to: and controlling and adjusting the working conditions of all devices in the heat radiating equipment according to the pressure value Y1 of the refrigerant inlet of the preset heat exchanger 107a, the pressure value Y2 of the refrigerant outlet of the condenser 102a, the pressure value Y3 of the cooling water inlet of the preset heat exchanger 107a and the pressure value Y4 of the cooling water outlet of the preset heat exchanger 107a.
Specifically, when the Δ YL is lower than a first threshold value, the circulation pump 201a is controlled to operate, and the condensing fan 103a of the condenser 102a is controlled to operate. And when the delta YL is lower than a second threshold value, the heat dissipation device exceeds the heat dissipation capacity of the device, and an alarm is given out. Wherein the first threshold is greater than the second threshold.
When the Δ YS is higher than a third threshold value, the electromagnetic regulating valve 202a is closed, the spraying device is controlled to operate, and the hot air exhaust fan 207 operates.
When the control device 301 detects that the pressure value of the cooling water in the cooling tower 203 is lower than the fourth threshold value, the water replenishing pump 205 is controlled to start replenishing the cooling water to the cooling tower 203.
When the control device 301 detects the presence of gas in the cooling tower 203, the purge valve 204 is controlled to open to discharge the gas.
It is clear to those skilled in the art from the foregoing description of the embodiments that, for convenience and simplicity of description, the foregoing division of the functional units is merely used as an example, and in practical applications, the above function distribution may be performed by different functional units according to needs, that is, the internal structure of the device may be divided into different functional units to perform all or part of the above described functions. For the specific working processes of the system, the apparatus and the unit described above, reference may be made to the corresponding processes in the foregoing method embodiments, and details are not described here again.
The embodiment of the present application further provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the instructions are executed by a computer, the computer executes each step in the method flow shown in the above method embodiment.
The computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, and a hard disk. Random Access Memory (RAM), Read-Only Memory (ROM), Erasable Programmable Read-Only Memory (EPROM), registers, a hard disk, an optical fiber, a portable Compact disk Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any other form of computer-readable storage medium, in any suitable combination, or as appropriate in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. Of course, the storage medium may also be integral to the processor. The processor and the storage medium may reside in an Application Specific Integrated Circuit (ASIC). In embodiments of the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
Embodiments of the present invention provide a computer program product comprising instructions which, when run on a control apparatus 301, cause the control apparatus 301 to perform a control method as shown in fig. 3.
Since the heat dissipation device, the control device 301, the computer readable storage medium, and the computer program product in the embodiments of the present invention may be applied to the method described above, the technical effects obtained by the embodiments of the method may also refer to the embodiments of the method described above, and no further description is given to the embodiments of the present invention.
The above description is only an embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered by the scope of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the present application are all or partially generated upon loading and execution of computer program instructions on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. A heat dissipating apparatus, the apparatus comprising: the system comprises a first circulating device, a cooling tower, a preset heat exchanger, a circulating pump and a control device; wherein:
the first circulating device adopts a heat pump principle to carry out heat exchange; a gas outlet of a compressor in the first circulating device is connected with a refrigerant inlet of the preset heat exchanger, and a refrigerant outlet of the preset heat exchanger is connected with a condenser;
the preset heat exchanger also comprises a cooling water inlet and a cooling water outlet; in the preset heat exchanger, the refrigerant inlet is communicated with the refrigerant outlet, and the cooling water inlet is communicated with the cooling water outlet;
the cooling water inlet and the cooling water outlet are respectively connected with the cooling tower; the circulating pump is used for enabling cooling water to flow through the preset heat exchanger through the cooling water inlet and the cooling water outlet;
the control device is used for acquiring a preset pressure value Y1 of a refrigerant inlet of the heat exchanger, a preset pressure value Y2 of a refrigerant outlet of the condenser, a preset pressure value Y3 of a cooling water inlet of the heat exchanger and a preset pressure value Y4 of a cooling water outlet of the heat exchanger;
the control device is further used for controlling a condensing fan of the condenser and the circulating pump to adjust the flow rate of the cooling water flowing through the preset heat exchanger according to the change conditions of the pressure value Y1 of the refrigerant inlet of the preset heat exchanger, the pressure value Y2 of the refrigerant outlet of the condenser, the pressure value Y3 of the cooling water inlet of the preset heat exchanger and the pressure value Y4 of the cooling water outlet of the preset heat exchanger;
the control device is specifically used for controlling the circulating pump to work and controlling a condensing fan of the condenser to work when delta YL is lower than a first threshold value; when the delta YL is lower than a second threshold value, the heat dissipation equipment exceeds the heat dissipation capacity of the device, and the control device gives an alarm; wherein the first threshold is greater than the second threshold, Δ YL ═ Y1-Y2;
the cooling tower includes: a spraying device and a hot air exhaust machine; the spraying device is used for spraying and radiating the radiating device in the cooling tower; the heat exhausting fan is used for exhausting hot air in the cooling tower out of the cooling tower;
the control device is specifically used for controlling the spraying device to work and the heat exhausting fan to work when the delta YS is higher than a third threshold value; wherein Δ YS ═ Y4-Y3.
2. The heat dissipating device of claim 1, further comprising: the electromagnetic control valve, the air release valve, the water replenishing pump and the water storage tank; wherein:
one end of the electromagnetic regulating valve is connected with a cooling water inlet of the preset heat exchanger, and the other end of the electromagnetic regulating valve is connected with a cooling water outlet of the preset heat exchanger;
the air release valve is used for releasing gas existing in the cooling tower;
the water replenishing pump and the water storage tank are used for replenishing cooling water for the cooling tower.
3. The heat dissipating device of claim 1,
a U-shaped pipe is arranged in the preset heat exchanger;
the U-shaped pipe divides the interior of the preset heat exchanger into a first space on the inner side of the U-shaped pipe and a second space on the outer side of the U-shaped pipe; wherein the first space communicates the cooling water inlet and the cooling water outlet; the second space communicates the refrigerant inlet and the refrigerant outlet.
4. A control method for controlling the heat dissipating apparatus as set forth in any one of claims 1 to 3; the method comprises the following steps:
acquiring a pressure value Y1 of a preset heat exchanger refrigerant inlet, a pressure value Y2 of a condenser refrigerant outlet, a pressure value Y3 of a preset heat exchanger cooling water inlet and a pressure value Y4 of a preset heat exchanger cooling water outlet; and controlling a condensing fan and a circulating pump of the condenser to adjust the flow speed of the cooling water flowing through the preset heat exchanger according to the change conditions of the pressure value Y1 of the refrigerant inlet of the preset heat exchanger, the pressure value Y2 of the refrigerant outlet of the condenser, the pressure value Y3 of the cooling water inlet of the preset heat exchanger and the pressure value Y4 of the cooling water outlet of the preset heat exchanger.
5. The control method according to claim 4, wherein the controlling a condensing fan and a circulating pump of the condenser to adjust a flow rate of cooling water flowing through the preset heat exchanger specifically comprises:
when the delta YL is lower than a first threshold value, controlling the circulating pump to work, and controlling a condensing fan of the condenser to work; when the delta YL is lower than a second threshold value, the heat dissipation device exceeds the heat dissipation capacity of the device and gives an alarm; wherein the first threshold is greater than the second threshold, Δ YL ═ Y1-Y2.
6. The control method according to claim 5, characterized in that the method further comprises:
when the delta YS is higher than a third threshold value, closing the electromagnetic regulating valve, controlling the spraying device to work, and controlling the heat exhausting fan to work; wherein Δ YS ═ Y4-Y3.
7. The control method according to claim 6, characterized in that the method further comprises:
when the control device detects that the pressure value of the cooling water in the cooling tower is lower than a fourth threshold value, controlling a water replenishing pump to start to replenish the cooling water to the cooling tower;
and when the control device detects that gas exists in the cooling tower, the control device controls the air release valve to be opened to discharge the gas.
8. The control method according to claim 7, characterized in that the method further comprises:
and controlling the condensation fan to be started when the rotating speed of the circulating pump reaches the maximum.
9. A control device, characterized in that the control device comprises: a processor, a memory, and a communication interface; wherein the memory is used for storing one or more programs, the one or more programs comprising computer executable instructions, and when the control device runs, the processor executes the computer executable instructions stored in the memory to make the control device execute the control method of any one of claims 4 to 8.
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