CN107990461A - The natural cooling air-conditioning system and its control method of a kind of integrated energy storage function - Google Patents
The natural cooling air-conditioning system and its control method of a kind of integrated energy storage function Download PDFInfo
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- CN107990461A CN107990461A CN201711276412.8A CN201711276412A CN107990461A CN 107990461 A CN107990461 A CN 107990461A CN 201711276412 A CN201711276412 A CN 201711276412A CN 107990461 A CN107990461 A CN 107990461A
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- Prior art keywords
- energy storage
- pump circulation
- pump
- conditioning system
- natural cooling
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Classifications
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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
- F24F5/0007—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 cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
Abstract
The natural cooling air-conditioning system and its control method of a kind of integrated energy storage function disclosed by the invention, wherein, the natural cooling air-conditioning system includes controller and the compressor assembly, energy storage component and the pump circulation component that are electrically connected with the controller.The natural cooling air-conditioning system of integrated energy storage function provided by the invention; not only effectively reduce the run time of compressor assembly; when also avoid the frequent start-stop of compressor assembly at the same time, and avoiding compressor assembly shutdown, the generation of data center server condensation problem；Further, the present invention also efficiently solves the problems, such as that computer room IT bearing powers and air-conditioning system refrigerating capacity are unmatched, and in the naturally cold season that can not be opened, the high power operation of compressor assembly is substituted by the operation of low-power kinetic pump, it is effective to have carried out energy saving, shorten the reciprocation cycle of client.
Description
Technical field
The present invention relates to field of air conditioning, more particularly to a kind of natural cooling air-conditioning system of integrated energy storage function and its control
Method.
Background technology
Current naturally cold air-conditioning products, common to have two kinds of forms, one kind is that compressor assembly and natural cooling system are mutual
Independent, mutually control operation, possesses three kinds of operational modes；Another form integrates nature cooling system for compressor assembly, shares
Evaporator and pump circulation condenser, possess two kinds of operational modes.Natural cooling system is when the outer temperature difference reaches certain condition indoors,
Operation could be opened, when being unsatisfactory for service condition, natural cooling system is stopped, and in 1 year, national most area being capable of profit
The time for using natural cooling equipment was only 2 season, and certain influence is produced for the input and reciprocation cycle of client.
In many computer rooms of data center's industry, the refrigerating capacity output of generally existing IT bearing powers and air-conditioning mismatches
The problem of, such case will produce harmful effect to the normal operation of IT servers.
Therefore, the prior art has yet to be improved and developed.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of natural cooling of integrated energy storage function
Air-conditioning system and its control method, it is intended to solve existing air-conditioned natural cooling system can not annual operation and air conditioner refrigerating amount with
The unmatched problem of computer room IT bearing powers.
Technical scheme is as follows：
A kind of natural cooling air-conditioning system of integrated energy storage function, wherein, including controller and with the controller respectively electricity
Compressor assembly, energy storage component and the pump circulation component of connection, the pump circulation component include pump circulation evaporator, kinetic pump with
And pump circulation condenser, the energy storage component include being stored with the accumulator of energy storage material, check valve, the first solenoid valve, second
Solenoid valve and temperature sensor；The pump circulation evaporator, kinetic pump, accumulator and pump circulation condenser pass sequentially through pipe
Road connects and forms circulation path, and the temperature sensor is arranged on the pipeline between connection pump circulation evaporator and kinetic pump
On, the check valve is arranged on the pipeline between connection accumulator and pump circulation condenser, and the second solenoid valve is arranged on
Connect on the pipeline between pump circulation evaporator and pump circulation condenser, described first solenoid valve one end is single with being connected by pipeline
To valve and the pipeline connection of accumulator, the other end of first solenoid valve is by pipeline with being connected pump circulation evaporator and second
The pipeline connection of solenoid valve.
The natural cooling air-conditioning system of the integrated energy storage function, wherein, the compressor assembly is steamed including compressor
Device is sent out, the compressor evaporator and pump circulation evaporator are disposed side by side on inside indoor apparatus of air conditioner.
The natural cooling air-conditioning system of the integrated energy storage function, wherein, the port of export of the pump circulation evaporator leads to
The input end that pipeline is crossed with pump circulation condenser connects, the port of export of the pump circulation condenser by pipeline and accumulator into
The connection of mouth end, the port of export of the accumulator are connected with the input end of kinetic pump, and the port of export and the pump circulation of the kinetic pump are steamed
Send out the input end connection of device.
The natural cooling air-conditioning system of the integrated energy storage function, wherein, the check valve, the first solenoid valve and second
The installation direction of solenoid valve is consistent with the flow direction of energy storage material in pipeline.
The natural cooling air-conditioning system of the integrated energy storage function, wherein, the energy storage material is phase-change material or second
Glycol liquid material.
A kind of control method of the natural cooling air-conditioning system of integrated energy storage function, wherein, including step：
A, when the data center machine room indoor and outdoor surroundings temperature difference is greater than or equal to first threshold, then start pump circulation component and enter the
One operational mode, the flow path of first operational mode are：Kinetic pump-pump circulation evaporator-second solenoid valve-pump circulation condensation
Device-check valve-accumulator-kinetic pump；
B, when the data center machine room indoor and outdoor surroundings temperature difference is less than first threshold, then start compressor assembly and pass through detection machine
The change of room return air temperature judges whether computer room IT bearing powers match with compressor assembly refrigerating capacity；
C, when judging that compressor assembly refrigerating capacity is more than computer room IT bearing powers, then start pump circulation component and enter the second operation
Pattern, carries out energy storage, and the flow path of second operational mode is：Kinetic pump-the-the first solenoid valve of pump circulation evaporator-storage
Can device-kinetic pump；
D, when temperature sensor detects that the temperature of energy storage material is less than 18 DEG C, then close compressor component, pump circulation component
Continue the second operational mode, output refrigerating capacity cools down server in machine room；
E, when detecting that data center machine room indoor temperature is greater than or equal to 26 DEG C, then return to step B reset itselfs component
Freeze.
The control method of the natural cooling air-conditioning system of the integrated energy storage function, wherein, the first threshold is 10
℃。
Beneficial effect：The natural cooling air-conditioning system of integrated energy storage function provided by the invention, not only effectively reduces pressure
The run time of contracting thermomechanical components, while the frequent start-stop of compressor assembly is also avoid, and during compressor assembly shutdown, data
The generation of central server condensation problem；Further, the present invention also efficiently solves computer room IT bearing powers and air-conditioning system
The unmatched problem of refrigerating capacity, in the naturally cold season that can not be opened, compressor set is substituted by the operation of low-power kinetic pump
The high power operation of part, has effectively carried out energy saving, shortens the reciprocation cycle of client.
Brief description of the drawings
Fig. 1 is a kind of natural cooling air-conditioning system preferred construction schematic diagram of integrated energy storage function of the present invention.
Fig. 2 is a kind of control method flow chart of the natural cooling air-conditioning system of integrated energy storage function of the present invention.
Embodiment
The present invention provides the natural cooling air-conditioning system and its control method of a kind of integrated energy storage function, to make the present invention
Purpose, technical solution and effect it is clearer, clear and definite, the present invention is described in more detail below.It should be appreciated that this place
The specific embodiment of description only to explain the present invention, is not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 is a kind of natural cooling air-conditioning system schematic diagram of integrated energy storage function of the present invention, wherein, such as
Shown in figure, including controller（Do not mark）And compressor assembly, energy storage component and the pump being electrically connected with the controller
Recirculation assembly, the pump circulation component include pump circulation evaporator 10, kinetic pump 20 and pump circulation condenser 30, the energy storage
Accumulator 41, check valve 42, the first solenoid valve 43, second solenoid valve 44 and the temperature that component includes being stored with energy storage material pass
Sensor 45；The pump circulation evaporator 10, kinetic pump 20, accumulator 41 and pump circulation condenser 30 pass sequentially through pipeline connection
And circulation path is formed, the temperature sensor 45 is arranged on the pipeline between connection pump circulation evaporator 10 and kinetic pump 20
On, the check valve 42 is arranged on the pipeline between connection accumulator 41 and pump circulation condenser 30, the second solenoid valve
44 are arranged on the pipeline between connection pump circulation evaporator 10 and pump circulation condenser 30, and described first solenoid valve, 43 one end leads to
Cross pipeline and pass through pipeline and company with being connected the pipeline connection of check valve 42 and accumulator 41, the other end of first solenoid valve 43
Connect pump circulation evaporator 10 and the pipeline connection of second solenoid valve 44.
Further, as shown in Figure 1, the compressor assembly includes compressor evaporator 50, the compressor evaporator
50 are disposed side by side on inside indoor apparatus of air conditioner with the pump circulation evaporator 10.
Specifically, the pump circulation evaporator is installed on after compressor evaporator, i.e., air-conditioning return air first passes through compression
Machine evaporator, then by pump circulation evaporator.
Further, the pump circulation condenser side installed outdoors, the energy storage component are installed on data center machine room
It is interior.
Further, as shown in Figure 1, in the present embodiment, the port of export of the pump circulation evaporator passes through pipeline
Connected with the input end of pump circulation condenser, the port of export of the pump circulation condenser is connected by the input end of pipeline and accumulator
Logical, the port of export of the accumulator is connected with the input end of kinetic pump, the port of export and the pump circulation evaporator of the kinetic pump
Input end connects.
The check valve is installed on pump circulation condensator outlet end into the pipeline of accumulator input end, the check valve
Installation direction is consistent with the flow direction of energy storage material in pipeline.Described first solenoid valve one end and pump circulation evaporator outlet end
Connecting line to pump circulation condenser inlet end connects, and is drawn by three-way pipe, and the first solenoid valve other end is followed with pump
The connecting line of ring condensator outlet end to accumulator input end connects, and is drawn by three-way pipe, the peace of first solenoid valve
It is consistent with the flow direction of pump circulation evaporator outlet end to the energy storage material of pump circulation condenser inlet end connecting tube to fill direction.
Further, the port of export three-way pipe extraction location of first solenoid valve is installed on the outlet connecting pipe of check valve.It is described
Second solenoid valve is installed on pump circulation evaporator outlet end to the connecting line at pump circulation condenser inlet end, its installation direction
It is consistent with the flow direction of energy storage material.
Preferably, the energy storage material is phase-change material or ethylene glycol liquid material, but not limited to this.
Based on the natural cold air conditioning system of above-mentioned integrated energy storage function, the present invention also provides a kind of integrated energy storage function from
The control method of right cold air conditioning system, wherein, as shown in Fig. 2, including the following steps：
S10, when the data center machine room indoor and outdoor surroundings temperature difference is greater than or equal to first threshold, then start pump circulation component and enter
First operational mode, the flow path of first operational mode are：Kinetic pump-pump circulation evaporator-second solenoid valve-pump circulation is cold
Condenser-check valve-accumulator-kinetic pump；
In the present embodiment, in data center machine room room and outdoor temperature is detected in real time, when data center machine room room
The internal and external environment temperature difference is greater than or equal to first threshold（Such as 10 DEG C）When, that is, judge to reach nature cooling system unlocking condition；At this time,
Pump circulation component turns on into the first operational mode, and first operational mode is strong refrigeration mode, is sent out at this time by controller
Go out instruction the first solenoid valve of control to close, second solenoid valve and check valve are opened, its operation flow path is：Kinetic pump-pump circulation is steamed
Send out device-second solenoid valve-pump circulation condenser-check valve-accumulator-kinetic pump.In pump circulation component opening process, logarithm
Detected in real time according to the return air temperature in central machine room, when return air temperature can be stablized in setting value（Such as 15 DEG C）When, then
Compressor assembly need not be opened；When return air temperature rises above the setting value, then compressor assembly is further opened,
Refrigerating capacity compensation is carried out, makes the return air temperature stabilization in data center machine room in setting value.
S20, when the data center machine room indoor and outdoor surroundings temperature difference is less than first threshold, then start and compressor assembly and pass through
The change of detection computer room return air temperature judges whether computer room IT bearing powers match with compressor assembly refrigerating capacity；
In the present embodiment, equally in data center machine room room and outdoor temperature is detected in real time, when data center's machine
When the chamber internal and external environment temperature difference is less than first threshold, that is, judge to be not up to nature cooling system unlocking condition.At this time, pump circulation component
Out of service, compressor assembly starts operation and judges computer room IT bearing powers and compression by detecting the change of computer room return air temperature
Whether thermomechanical components refrigerating capacity matches, and the controller exports corresponding pump circulation component action command according to judgement result.
In a kind of specific embodiment, compressor assembly is exported with minimum refrigerating capacity, and continuous output time t, works as inspection
Measure computer room return air temperature and decline percentage change when reaching x%, then judge that the refrigerating capacity of compressor assembly is more than computer room IT loads
Power.It is preferred that the time t is 20min, x 40.
S30, when judging that compressor assembly refrigerating capacity is more than computer room IT bearing powers, then start pump circulation component into the
Two operational modes, carry out energy storage, and the flow path of second operational mode is：Kinetic pump-the-the first electromagnetism of pump circulation evaporator
Valve-accumulator-kinetic pump；
Specifically, when judging that compressor assembly refrigerating capacity is more than computer room IT bearing powers, then controller output order is passed through
The first solenoid valve is controlled to open, second solenoid valve is closed, while is started pump circulation component and carried out energy into the second operational mode
Storage；The flow path of second operational mode is：Kinetic pump-the-the first solenoid valve of pump circulation evaporator-accumulator-kinetic pump.
In the operational mode, the return air temperature after compressor evaporator is reduced, and the air-flow of low temperature is evaporated by pump circulation again
Device, the energy storage material temperature flowed in pump circulation evaporator is reduced, and the gas flow temperature for passing through pump circulation evaporator will obtain
Rise, this causes compressor assembly not trigger halt instruction faster；
Energy storage material after pump circulation evaporator, since second solenoid valve at this time has been switched off, simultaneously because pump circulation
Condensator outlet end is provided with check valve, therefore energy storage material can not be redirected back into pump circulation condenser, the energy storage material
Material is merely able to carry out energy storage by entering in accumulator from the first solenoid valve.
Determine it is preferred that the volume of the accumulator can carry out matching according to the heat load of data center IT servers, such as need
Energy storage and the standby cooling function of long period is wanted, then accumulator can design the solvent of bigger, store more colds, pump circulation
The time of energy-storage function perseveration is longer.
S40, when temperature sensor detect energy storage material temperature be less than 18 DEG C when, then close compressor component, pump follow
Ring assemblies continue the second operational mode, and output refrigerating capacity cools down server in machine room；
Specifically, during pump circulation component persistently carries out the second operational mode, when on kinetic pump port of export pipeline
When temperature sensor detects that the temperature of energy storage material is less than 18 DEG C, then close compressor component, pump circulation component continue
Second operational mode, output refrigerating capacity are used for server in machine room refrigeration cool-down.
S50, when detect data center machine room indoor temperature be greater than or equal to 26 DEG C when, then return to step S20 restarts pressure
Contracting thermomechanical components carry out refrigeration
Specifically, when detecting that data center machine room indoor temperature is greater than or equal to 26 DEG C, the refrigeration in accumulator is illustrated
Amount has been insufficient for the cooling demand of server in machine room, should restart compressor assembly at this time and freeze, and circulates
The step of S20-S50.
The present invention annual can not be used for pump circulation component existing for existing air-conditioning system and computer room IT bearing powers
With the unmatched problem of air conditioner refrigerating amount, there is provided a kind of control method of the natural cold air conditioning system of integrated energy storage function, when
When computer room IT bearing powers are less than the output of compressor assembly minimum refrigerating capacity, compressor assembly stops fortune after operation a period of time
OK, system is maintained to the cold output in certain time, it is ensured that and the temperature of data center's cold passage will not rise too soon,
It can effectively solve the problem that cabinet or server condensation problem, ensure the operation of data center machine room long time stability.
In conclusion the natural cooling air-conditioning system of integrated energy storage function provided by the invention, not only effectively reduces pressure
The run time of contracting thermomechanical components, while the frequent start-stop of compressor assembly is also avoid, and avoid compressor assembly shutdown
When, the generation of data center server condensation problem；Further, the present invention also efficiently solves computer room IT bearing powers and sky
The unmatched problem of adjusting system refrigerating capacity, in the naturally cold season that can not be opened, pressure is substituted by the operation of low-power kinetic pump
The high power operation of contracting thermomechanical components, has effectively carried out energy saving, shortens the reciprocation cycle of client；Further, data are worked as
When central server is in an emergency, such as compressor fault, then can ensure server by accumulator within a period of time
Operating temperature will not rise too soon, reserve the regular hour to processing after sale so that data center machine room reliability higher.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (7)
- A kind of 1. natural cooling air-conditioning system of integrated energy storage function, it is characterised in that including controller and with the control Compressor assembly, energy storage component and the pump circulation component that device is electrically connected, the pump circulation component include pump circulation evaporator, Kinetic pump and pump circulation condenser, the energy storage component include the accumulator, check valve, the first electromagnetism for being stored with energy storage material Valve, second solenoid valve and temperature sensor；The pump circulation evaporator, kinetic pump, accumulator and pump circulation condenser according to Secondary by pipeline connection and to form circulation path, the temperature sensor is arranged between connection pump circulation evaporator and kinetic pump Pipeline on, the check valve be arranged on connection accumulator and pump circulation condenser between pipeline on, the second solenoid valve Be arranged on connection pump circulation evaporator and pump circulation condenser between pipeline on, described first solenoid valve one end by pipeline with Connect the pipeline connection of check valve and accumulator, the other end of first solenoid valve is by pipeline with being connected pump circulation evaporator With the pipeline connection of second solenoid valve.
- 2. the natural cooling air-conditioning system of integrated energy storage function according to claim 1, it is characterised in that the compressor Component includes compressor evaporator, and the compressor evaporator and pump circulation evaporator are disposed side by side on inside indoor apparatus of air conditioner.
- 3. the natural cooling air-conditioning system of integrated energy storage function according to claim 1, it is characterised in that the pump circulation The port of export of evaporator is connected by pipeline with the input end of pump circulation condenser, and the port of export of the pump circulation condenser passes through Pipeline is connected with the input end of accumulator, and the port of export of the accumulator is connected with the input end of kinetic pump, the kinetic pump The port of export is connected with the input end of pump circulation evaporator.
- 4. the natural cooling air-conditioning system of integrated energy storage function according to claim 1, it is characterised in that described unidirectional The installation direction of valve, the first solenoid valve and second solenoid valve is consistent with the flow direction of energy storage material in pipeline.
- 5. the natural cooling air-conditioning system of integrated energy storage function according to claim 1, it is characterised in that the energy storage material Expect for phase-change material or ethylene glycol liquid material.
- 6. a kind of control method of the natural cooling air-conditioning system of integrated energy storage function, it is characterised in that including step：A, when the data center machine room indoor and outdoor surroundings temperature difference is greater than or equal to first threshold, then start pump circulation component and enter the One operational mode, the flow path of first operational mode are：Kinetic pump-pump circulation evaporator-second solenoid valve-pump circulation condensation Device-check valve-accumulator-kinetic pump；B, when the data center machine room indoor and outdoor surroundings temperature difference is less than first threshold, then start compressor assembly and pass through detection machine The change of room return air temperature judges whether computer room IT bearing powers match with compressor assembly refrigerating capacity；C, when judging that compressor assembly refrigerating capacity is more than computer room IT bearing powers, then start pump circulation component and enter the second operation Pattern, carries out energy storage, and the flow path of second operational mode is：Kinetic pump-the-the first solenoid valve of pump circulation evaporator-storage Can device-kinetic pump；D, when temperature sensor detects that the temperature of energy storage material is less than 18 DEG C, then close compressor component, pump circulation component Continue the second operational mode, output refrigerating capacity cools down server in machine room；E, when detecting that data center machine room indoor temperature is greater than or equal to 26 DEG C, then return to step B reset itselfs component Freeze.
- 7. the control method of the natural cooling air-conditioning system of integrated energy storage function according to claim 6, it is characterised in that The first threshold is 10 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711276412.8A CN107990461A (en) | 2017-12-06 | 2017-12-06 | The natural cooling air-conditioning system and its control method of a kind of integrated energy storage function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711276412.8A CN107990461A (en) | 2017-12-06 | 2017-12-06 | The natural cooling air-conditioning system and its control method of a kind of integrated energy storage function |
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| CN201711276412.8A Pending CN107990461A (en) | 2017-12-06 | 2017-12-06 | The natural cooling air-conditioning system and its control method of a kind of integrated energy storage function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112082238A (en) * | 2020-09-30 | 2020-12-15 | 美的集团股份有限公司 | Control method of mobile air conditioner, mobile air conditioner and storage medium |
| CN114061125A (en) * | 2020-07-30 | 2022-02-18 | 广东美的暖通设备有限公司 | Control method and control device of air conditioning system, controller and air conditioning system |
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