CN105352211B - A kind of control method of direct-expansion-type machinery room energy-saving air conditioner - Google Patents
A kind of control method of direct-expansion-type machinery room energy-saving air conditioner Download PDFInfo
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- CN105352211B CN105352211B CN201510844368.0A CN201510844368A CN105352211B CN 105352211 B CN105352211 B CN 105352211B CN 201510844368 A CN201510844368 A CN 201510844368A CN 105352211 B CN105352211 B CN 105352211B
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Abstract
The present invention provides a kind of direct-expansion-type machinery room energy-saving air conditioner system, including the compressor, first throttle valve, fluid reservoir, second throttle, evaporator, air accumulator, sensor, controller, the first valve, the second valve, the 3rd valve, temperature-sensing probe and the liquid level induction system that are arranged in computer room and the condenser being arranged at outside computer room, the evaporator is placed in corresponding server cabinet；Compressor, condenser, first throttle valve, the first valve, fluid reservoir, the second valve, second throttle, evaporator, air accumulator and the 3rd valve head and the tail are sequentially connected, temperature-sensing probe is in server cabinet, liquid level induction system is in fluid reservoir, and temperature-sensing probe is connected to sensor with liquid level induction system；Controller is connected with compressor, the first valve, the second valve, the 3rd valve and sensor respectively.The present invention also provides a kind of control method of direct-expansion-type machinery room energy-saving air conditioner, solves the heat removal issue of computer room, reduces energy consumption, reduces cost.
Description
Technical field
The present invention relates to a kind of machinery room energy-saving air conditioner field, more particularly to a kind of control of direct-expansion-type machinery room energy-saving air conditioner
Method processed.
Background technology
With the fast development of network technology, the quantity and energy consumption of data center module and communication base station are growing day by day.It is existing at present
Some air conditioner in machine room are commonly direct-expansion-type air conditioner in machine room, and direct-expansion-type air conditioner in machine room refers to pass through from room draw heat
Condenser is delivered to the air-conditioning in outdoor air, is that continuously operation is conventional come the temperature in controlling chamber using comfort air conditioning system
Way is under fan action, by space under floor, is blown a cold wind over from server cabinet bottom, in takeaway service device rack body
Heat.Although this temperature control mode disclosure satisfy that the requirement of controlling machine room temperature, but cause some problems：
1) air conditioner in machine room is continuously run come the temperature in controlling chamber using vapour compression refrigeration mode, and its power consumption is larger, makes
It is higher into operating cost；
2) the more all-air systems of air conditioner in machine room, the air supply duct of blower fan are connected to server cabinet bottom through floor, air-supply
Server cabinet is washed away upwards, takes away the return air formed after heat again by the amorphous introducing unit of the blower fan of refrigeration unit, shape
Into circulation；In this manner, refrigeration unit can not effectively be split with server cabinet, cause noise very big；Under simultaneously this
The mode of air-supply proposes higher requirement to the floor height of building；
3) in the load that conventional air conditioner in machine room is undertaken, not only the machine utilization such as including server cabinet, also carries
The load of computer room architectural exterior-protecting construction；To reduce the load of computer room architectural exterior-protecting construction, insulation to architectural exterior-protecting construction and
Closure proposes higher requirement.
Current existing machine room air-conditioning energy-saving technology is mainly utilized in conditioning in Transition Season or cooler winter outside air temperature, utilizes room
The cold of outer fresh air eliminates the heat of computer room.Chinese patent CN200820123459.0, CN200910088535.8,
CN201010221372.9 uses hot pipe technique, and the heat of computer room is eliminated using the cold of outdoor fresh air.Though these measures
So solve the problems, such as the normal work of air-conditioning equipment, but be restricted in the application scenario of some totally-enclosed computer rooms.
The content of the invention
One of the technical problem to be solved in the present invention, it is to provide a kind of direct-expansion-type machinery room energy-saving air conditioner system, profit
With the principle of direct-expansion-type heat pump, evaporator is directly placed in corresponding server cabinet, sensor is according to clothes
Liquid level change in the change of business device machine in-cabinet temperature and liquid level induction system sensing fluid reservoir, is engaged with controller, selects
" compressor cooling circulation pattern ", " uncompressed mechanism cold circulation pattern " and " half-compressed mechanism cold circulation pattern " is selected, can
Air conditioner load is effectively reduced, solves the heat removal issue of computer room, and greatly reduces compressor operating time, reduces energy consumption.
The invention solves technology the problem of one of, be realized in：
A kind of direct-expansion-type machinery room energy-saving air conditioner system, the machinery room energy-saving air conditioner system include being arranged in computer room
Compressor, first throttle valve, fluid reservoir, second throttle, evaporator, air accumulator, sensor, controller, the first valve, second
Valve, the 3rd valve, temperature-sensing probe and liquid level induction system and the condenser being arranged at outside computer room, the evaporator are placed in
In corresponding server cabinet；
The air inlet pipe of the compressor is connected with one end of the 3rd valve, the blast pipe of the compressor with it is described cold
The import connection of condenser；One end of the first throttle valve is connected with the outlet of the condenser, the first throttle valve it is another
One end is connected with one end of first valve；The import of the fluid reservoir is connected with the other end of first valve, described
The outlet of fluid reservoir is connected with one end of second valve；One end of the second throttle and the other end of the second valve connect
Connect, the other end of the second throttle is connected with the import of the evaporator；The outlet of the evaporator and the air accumulator
Import connection；The outlet of the air accumulator is connected with the other end of the 3rd valve；The temperature-sensing probe is located at the clothes
It is engaged in device rack, the liquid level induction system is in the fluid reservoir, and the temperature-sensing probe and the liquid level induction system
It is connected to the sensor；The controller respectively with the compressor, first valve, second valve, described
3rd valve connects with the sensor.
Further, first valve, second valve and the 3rd valve are magnetic valve.
The second technical problem to be solved by the present invention, it is to provide a kind of controlling party of direct-expansion-type machinery room energy-saving air conditioner
Method, using the principle of direct-expansion-type heat pump, evaporator is directly placed in corresponding server cabinet, sensor root
Change according to the liquid level in the change of server machine in-cabinet temperature and liquid level induction system sensing fluid reservoir, match with controller
Close, select " compressor cooling circulation pattern ", " uncompressed mechanism cold circulation pattern " and " half-compressed mechanism cold circulation pattern ",
The heat removal issue of computer room can be efficiently solved, and greatly reduces compressor operating time, reduces energy consumption.
The two of the problem of of the invention, are realized in：
A kind of control method of direct-expansion-type machinery room energy-saving air conditioner, methods described need to provide above-mentioned a kind of directly swollen
Expanding machinery room energy-saving air conditioner system, methods described specifically comprise the following steps：
Temperature T in step 10, the setting server cabinetinBoundary value To；Set the liquid level V in the fluid reservoirin
Boundary value Vl1With threshold value Vl2；Three kinds of kind of refrigeration cycle patterns of the machinery room energy-saving air conditioner system are set, i.e. compressor cooling follows
Ring mode, uncompressed mechanism cold circulation pattern and half-compressed mechanism cold circulation pattern；
Step 20, the sensor continuously detect the temperature T in the server cabinetinAnd the liquid in the fluid reservoir
Position Vin, work as Tin＞ ToWhen, into the compressor cooling circulation pattern, the sensor gives the signal instruction of controller one,
The controller opens compressor, first valve, second valve and the 3rd valve, and the compressor is inhaled
Take the refrigerant vapour of the low-temp low-pressure in the air accumulator, after being compressed into the refrigerant vapour of HTHP, through computer room outside
After the condenser radiating is condensed into high-temperature high-pressure refrigerant liquid, the refrigeration through first throttle valve throttling for low-temp low-pressure
After agent liquid, into the fluid reservoir, then after second throttle throttling, described in the refrigerant liquid entrance of low-temp low-pressure
Evaporator, which absorbs heat, is vaporized into the refrigerant vapour of low-temp low-pressure, sucks into the air accumulator, then by the compressor, follows repeatedly
Ring；Now, the temperature T in the server cabinetinConstantly decline, it is described with the Wen Duxiajiang in the server cabinet
It is fewer to be used for the amount of server cabinet evaporation in refrigerant liquid in fluid reservoir, and is stored in the fluid reservoir
Amount is more so that the liquid level V in the fluid reservoirinConstantly rise, until the sensor detects the server cabinet
Interior temperature Tin≤ToAnd the liquid level V in the fluid reservoirinMeet scope Vl1＜ Vin＜ Vl2When, into step 30；
Step 30, into the uncompressed mechanism cold circulation pattern, the sensor signal instruction of controller one is given,
The controller closes compressor, first valve and the 3rd valve, opens second valve, the liquid storage
The refrigerant liquid of low-temp low-pressure in tank is vaporized into low temperature after second throttle throttling, into evaporator heat absorption
The refrigerant vapour of low pressure, into the air accumulator, iterative cycles；Now, the temperature T in the server cabinetinOn constantly
Rise, as the temperature in the server cabinet rises, be used for the server machine in the refrigerant liquid in the fluid reservoir
The amount of cabinet evaporation is more, and the amount being stored in the fluid reservoir is fewer so that the liquid level V in the fluid reservoirinConstantly
Decline, the temperature T in the server cabinet is detected when the sensorin≤ToAnd the liquid level V in the fluid reservoirinMeet
The ＜ V of scope 0in≤Vl1When, into step 40；Otherwise, into step 20；
Step 40, into the half-compressed mechanism cold circulation pattern, the sensor signal instruction of controller one is given,
The controller opens the compressor, first valve, the 3rd valve, turns second valve opening down, described
Compressor draws the refrigerant vapour of the low-temp low-pressure in the air accumulator, after being compressed into the refrigerant vapour of HTHP, warp
It is low for low temperature through first throttle valve throttling after condenser radiating outside computer room is condensed into high-temperature high-pressure refrigerant liquid
After the refrigerant liquid of pressure, into the fluid reservoir, the refrigerant liquid of a portion low-temp low-pressure stays in the fluid reservoir,
The refrigerant liquid of another part low-temp low-pressure again through the second throttle throttling after, the refrigerant liquid of this part low-temp low-pressure
Body enters the refrigerant vapour that evaporator heat absorption is vaporized into low-temp low-pressure, into the air accumulator, in the air accumulator
Refrigerant vapour is sucked by the compressor again, iterative cycles；Now, the temperature T in the server cabinetinConstantly decline,
It is used to the server cabinet with the Wen Duxiajiang in the server cabinet, in the refrigerant liquid in the fluid reservoir steam
The amount of hair is fewer, and the amount being stored in the fluid reservoir is more so that the liquid level V in the fluid reservoirinConstantly rise,
The temperature T in the server cabinet is detected when the sensorin≤ToAnd liquid level V in the fluid reservoirinMeet scope Vin
=Vl2When, into step 30；Otherwise, into step 20.
Further, the control mode of first valve, second valve and the 3rd valve is electronic or liquid
Pressure transmission.
The invention has the advantages that：
1st, a kind of direct-expansion-type machinery room energy-saving air conditioner system and its control method of the invention are reliable, reduce compressor
Run time, it can ensure that air conditioner in machine room normally and efficiently works；
2nd, it is simple to operate, changed according to liquid level in fluid reservoir, and the setting of operating condition, pass through the switch of control valve
Realize and switch corresponding pipe-line system；
3rd, installation is simple, and operating cost is low after installation and debugging；
4th, control mode of the invention can control manually, can automatically control again, strong applicability；
5th, the present invention is directly placed in evaporator in corresponding server cabinet, and its load only includes server machine
The load of cabinet, reduce the strict demand for computer room architectural exterior-protecting construction；
6th, the present invention is with strong points, and air-conditioning service object is directed to server cabinet.
Brief description of the drawings
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is a kind of structural representation of direct-expansion-type machinery room energy-saving air conditioner system of the present invention.
Fig. 2 is a kind of execution flow chart of the control method of direct-expansion-type machinery room energy-saving air conditioner of the present invention.
In figure：1- compressors, 2- condensers, 3- first throttle valves, 4- fluid reservoirs, 5- second throttle, 6- evaporators, 7-
Air accumulator, 8- sensors, 9- controllers, the valves of 10- first, the valves of 11- second, the valves of 12- the 3rd, 13- temperature-sensing probes, 14-
Liquid level induction system, 15- server cabinets.
Embodiment
Refer to shown in Fig. 1 and Fig. 2, a kind of direct-expansion-type machinery room energy-saving air conditioner system of the invention, the computer room section
Can air-conditioning system include being arranged at compressor 1 in computer room, first throttle valve 3, fluid reservoir 4, second throttle 5, evaporator 6,
Air accumulator 7, sensor 8, controller 9, the first valve 10, the second valve 11, the 3rd valve 12, temperature-sensing probe 13 and liquid level sensing
Device 14 and the condenser 2 being arranged at outside computer room, the evaporator 6 are placed in corresponding server cabinet 15；
The air inlet pipe of the compressor 1 is connected with one end of the 3rd valve 12, the blast pipe of the compressor 1 and institute
State the import connection of condenser 2；One end of the first throttle valve 3 is connected with the outlet of the condenser 2, the first throttle
The other end of valve 3 is connected with one end of first valve 10；The import of the fluid reservoir 4 is another with first valve 10
End connection, the outlet of the fluid reservoir 4 is connected with one end of second valve 11；One end of the second throttle 5 and the
The other end connection of two valves 11, the other end of the second throttle 5 are connected with the import of the evaporator 6；The evaporation
The outlet of device 6 is connected with the import of the air accumulator 7；The outlet of the air accumulator 7 connects with the other end of the 3rd valve 12
Connect；In the server cabinet 15, the liquid level induction system 14 is located in the fluid reservoir 4 temperature-sensing probe 13,
And the temperature-sensing probe 13 is connected to the sensor 8 with the liquid level induction system 14；The controller 9 respectively with it is described
First valve 10, second valve 11, the 3rd valve 12 and the sensor 8 connect.
Further, first valve 10, second valve 11 and the 3rd valve 12 are magnetic valve.
A kind of control method of direct-expansion-type machinery room energy-saving air conditioner of the present invention, methods described need to provide above-mentioned one
Kind direct-expansion-type machinery room energy-saving air conditioner system, methods described specifically comprise the following steps：
Temperature boundary value T in step 10, the setting server cabinet 15o；Set the liquid level V in the fluid reservoir 4in
Boundary value Vl1With threshold value Vl2；Three kinds of kind of refrigeration cycle patterns of the machinery room energy-saving air conditioner system are set, i.e. compressor cooling follows
Ring mode, uncompressed mechanism cold circulation pattern and half-compressed mechanism cold circulation pattern；
Step 20, the sensor 8 continuously detect the temperature T in the server cabinet 15inAnd in the fluid reservoir 4
Liquid level Vin, work as Tin＞ ToWhen, into the compressor cooling circulation pattern, the sensor 8 gives the signal of controller 9 one
Instruction, the controller 9 open the compressor 1, first valve 10, second valve 11 and the 3rd valve
12, the compressor 1 draws the refrigerant vapour of the low-temp low-pressure in the air accumulator 7, is compressed into the refrigerant of HTHP
After steam, after the radiating of the condenser 2 outside computer room is condensed into high-temperature high-pressure refrigerant liquid, through the first throttle valve 3
Throttle as after the refrigerant liquid of low-temp low-pressure, into the fluid reservoir 4, then after the second throttle 5 throttling, low temperature is low
The refrigerant liquid of pressure enters the evaporator 6 heat absorption and is vaporized into the refrigerant vapour of low-temp low-pressure, into the air accumulator 7,
Sucked again by the compressor 1, iterative cycles；Now, the temperature T in the server cabinet 15inConstantly decline, with described
Wen Duxiajiang in server cabinet 15, evaporated for the server cabinet 15 in the refrigerant liquid in the fluid reservoir 4
Amount it is fewer, and the amount being stored in the fluid reservoir 4 is more so that the liquid level V in the fluid reservoir 4inConstantly rise,
Until the sensor 8 detects the temperature T in the server cabinet 15in≤ToAnd the liquid level V in the fluid reservoir 4inIt is full
Sufficient scope Vl1＜ Vin＜ Vl2When, into step 30；
Step 30, refer to the signal of controller 9 one into the uncompressed mechanism cold circulation pattern, the sensor 8
Order, the controller 9 close the compressor 1, first valve 10 and the 3rd valve 12, open second valve
11, the refrigerant liquid of the low-temp low-pressure in the fluid reservoir 4 is after the second throttle 5 throttling, into the evaporator 6
Heat absorption is vaporized into the refrigerant vapour of low-temp low-pressure, into the air accumulator 7, iterative cycles；Now, the server cabinet 15
Interior temperature TinConstantly rise, as the temperature in the server cabinet 15 rises, the refrigerant liquid in the fluid reservoir 4
In be used for the server cabinet 15 evaporation amount it is more, and the amount being stored in the fluid reservoir 4 is fewer so that described
Liquid level V in fluid reservoir 4inConstantly decline, when the sensor 8 detects the temperature T in the server cabinet 15in≤ToAnd
Liquid level V in the fluid reservoir 4inMeet the ＜ V of scope 0in≤Vl1When, into step 40；Otherwise, into step 20；
Step 40, refer to the signal of controller 9 one into the half-compressed mechanism cold circulation pattern, the sensor 8
Order, the controller 9 open the compressor 1, first valve 10, the 3rd valve 12, turn second valve down
11 apertures, the compressor 1 draw the refrigerant vapour of the low-temp low-pressure in the air accumulator 7, are compressed into the system of HTHP
After refrigerant vapour, after the radiating of the condenser 2 outside computer room is condensed into high-temperature high-pressure refrigerant liquid, through the first throttle
After the throttling of valve 3 is the refrigerant liquid of low-temp low-pressure, into the fluid reservoir 4, the refrigerant liquid of a portion low-temp low-pressure
Body stays in the fluid reservoir 4, and the refrigerant liquid of another part low-temp low-pressure is again after the second throttle 5 throttling, this portion
The refrigerant liquid of point low-temp low-pressure enters the refrigerant vapour that the evaporator 6 heat absorption is vaporized into low-temp low-pressure, into described
Air accumulator 7, the refrigerant vapour in the air accumulator 7 are sucked by the compressor 1 again, iterative cycles；Now, the server
Temperature T in rack 15inConstantly decline, with the Wen Duxiajiang in the server cabinet 15, the refrigeration in the fluid reservoir 4
It is fewer to be used for the amount of the server cabinet 15 evaporation in agent liquid, and the amount being stored in the fluid reservoir 4 is more, makes
Obtain the liquid level V in the fluid reservoir 4inConstantly rise, when the sensor 8 detects the temperature in the server cabinet 15
Tin≤ToAnd liquid level V in the fluid reservoir 4inMeet scope Vin=Vl2When, into step 30；Otherwise, into step 20.
Further, the control mode of first valve 10, second valve 11 and the 3rd valve 12 is electricity
Dynamic or hydraulic drive.
A kind of control method of direct-expansion-type machinery room energy-saving air conditioner of the present invention is made further with reference to embodiments
Describe in detail.
Using refrigerating capacity 2000kW machinery room energy-saving air conditioner as instantiation, refrigerant uses R134a.
Methods described needs to provide a kind of above-mentioned direct-expansion-type machinery room energy-saving air conditioner system, and methods described specifically includes
Following steps：
Step S1, the temperature boundary value T in the server cabinet 15 is setoFor 26 DEG C；Set in the fluid reservoir 4
Liquid level VinBoundary value Vl1For 0.2L and threshold value Vl2For 0.9L (maximum volume of the fluid reservoir 4 is 0.9L)；Described in setting
Three kinds of kind of refrigeration cycle patterns of machinery room energy-saving air conditioner system, i.e. compressor cooling circulation pattern, uncompressed mechanism cold circulation pattern
With half-compressed mechanism cold circulation pattern；
Step S2, described sensor 8 continuously detects the temperature T in the server cabinet 15inAnd in the fluid reservoir 4
Liquid level Vin, work as TinDuring 26 DEG C of ＞, into the compressor cooling circulation pattern, the sensor 8 gives the controller 9 one
Signal instruction, the controller 9 open the compressor 1, first valve 10, second valve 11 and the 3rd valve
Door 12, the compressor 1 draws the refrigerant vapour of the low-temp low-pressure in the air accumulator 7, is compressed into the refrigeration of HTHP
After agent steam, after the radiating of the condenser 2 outside computer room is condensed into high-temperature high-pressure refrigerant liquid, through the first throttle valve
After 3 throttlings is the refrigerant liquids of low-temp low-pressure, into the fluid reservoir 4, then after the second throttle 5 throttling, low temperature
The refrigerant liquid of low pressure enters the refrigerant vapour that the evaporator 6 heat absorption is vaporized into low-temp low-pressure, into the air accumulator
7, then sucked by the compressor 1, iterative cycles；Now, the temperature T in the server cabinet 15inConstantly decline, with institute
State the Wen Duxiajiang in server cabinet 15, steamed in the refrigerant liquid in the fluid reservoir 4 for the server cabinet 15
The amount of hair is fewer, and the amount being stored in the fluid reservoir 4 is more so that the liquid level V in the fluid reservoir 4inOn constantly
Rise, until the sensor 8 detects the temperature T in the server cabinet 15inLiquid level in≤26 DEG C and the fluid reservoir 4
VinMeet scope 0.2L ＜ VinDuring ＜ 0.9L, into step S3；
Step S3, refer into the uncompressed mechanism cold circulation pattern, the sensor 8 to the signal of controller 9 one
Order, the controller 9 close the compressor 1, first valve 10 and the 3rd valve 12, open second valve
11, the refrigerant liquid of the low-temp low-pressure in the fluid reservoir 4 is after the second throttle 5 throttling, into the evaporator 6
Heat absorption is vaporized into the refrigerant vapour of low-temp low-pressure, into the air accumulator 7, iterative cycles；Now, the server cabinet 15
Interior temperature TinConstantly rise, as the temperature in the server cabinet 15 rises, the refrigerant liquid in the fluid reservoir 4
In be used for the server cabinet 15 evaporation amount it is more, and the amount being stored in the fluid reservoir 4 is fewer so that described
Liquid level V in fluid reservoir 4inConstantly decline, when the sensor 8 detects the temperature T in the server cabinet 15in≤26
DEG C and the fluid reservoir 4 in liquid level VinMeet the ＜ V of scope 0inDuring≤0.2L, into step S4；Otherwise step S2 is entered；
Step S4, refer into the half-compressed mechanism cold circulation pattern, the sensor 8 to the signal of controller 9 one
Order, the controller 9 open the compressor 1, first valve 10, the 3rd valve 12, turn second valve down
11 apertures (degree turned down is relevant with the temperature in the server cabinet 15, and temperature is lower, regulation it is smaller, described second
Valve 11 is closed tighter, and the amount that the inner refrigerant liquid of fluid reservoir 4 leaves is more, and the amount into the evaporator 6 is fewer；
Temperature is higher, bigger, smaller, the amount that the inner refrigerant liquid of fluid reservoir 4 leaves that second valve 11 is closed of regulation
Fewer, the amount into the evaporator 6 is more), the compressor 1 draws the refrigerant of the low-temp low-pressure in the air accumulator 7
Steam, after being compressed into the refrigerant vapour of HTHP, through computer room outside the condenser 2 radiating be condensed into HTHP refrigeration
After agent liquid, after the first throttle valve 3 throttling is the refrigerant liquid of low-temp low-pressure, into the fluid reservoir 4, wherein one
The refrigerant liquid of part low-temp low-pressure stays in the fluid reservoir 4, and the refrigerant liquid of another part low-temp low-pressure is again through described
After second throttle 5 throttles, the refrigerant liquid of this part low-temp low-pressure enters the evaporator 6 heat absorption and is vaporized into low-temp low-pressure
Refrigerant vapour, into the air accumulator 7, the refrigerant vapour in the air accumulator 7 is sucked by the compressor 1 again, instead
Multiple circulation；Now, the temperature T in the server cabinet 15inConstantly decline, with the temperature in the server cabinet 15
Drop, the amount in the refrigerant liquid in the fluid reservoir 4 for the server cabinet 15 evaporation is fewer, and is stored in described
Amount in fluid reservoir 4 is more so that the liquid level V in the fluid reservoir 4inConstantly rise, when the sensor 8 detect it is described
Temperature T in server cabinet 15in≤ToAnd liquid level V in the fluid reservoir 4inMeet scope Vin=Vl2When, into step S3；
Otherwise, into step S2.
Further, the control mode of first valve 10, second valve 11 and the 3rd valve 12 is electricity
Dynamic or hydraulic drive.
The compressor cooling circulation pattern, the uncompressed mechanism cold circulation pattern and the half-compressed mechanism SAPMAC method
Pattern be direct-expansion-type feed flow refrigeration, highly pressurised liquid directly to the feed flow of evaporator 6 freeze, heat absorption vaporization after directly by
The compressor 1 sucks, so as to reduce the temperature in the server cabinet 15, by the cold air in the server cabinet 15
Pass in computer room, so as to produce refrigeration in computer room.
Although the foregoing describing the embodiment of the present invention, those familiar with the art should manage
Solution, the specific embodiment described by us are merely exemplary, rather than for the restriction to the scope of the present invention, are familiar with this
The equivalent modification and change that the technical staff in field is made in the spirit according to the present invention, should all cover the present invention's
In scope of the claimed protection.
Claims (2)
- A kind of 1. control method of direct-expansion-type machinery room energy-saving air conditioner, it is characterised in that：Methods described needs to provide one kind directly Expansion type machinery room energy-saving air conditioner system is connect, the machinery room energy-saving air conditioner system includes compressor, the first segment being arranged in computer room Flow valve, fluid reservoir, second throttle, evaporator, air accumulator, sensor, controller, the first valve, the second valve, the 3rd valve Door, temperature-sensing probe and liquid level induction system and the condenser being arranged at outside computer room, the evaporator are placed in corresponding service In device rack；The air inlet pipe of the compressor is connected with one end of the 3rd valve, the blast pipe of the compressor and the condenser Import connection；One end of the first throttle valve is connected with the outlet of the condenser, the other end of the first throttle valve It is connected with one end of first valve；The import of the fluid reservoir is connected with the other end of first valve, the liquid storage The outlet of tank is connected with one end of second valve；One end of the second throttle is connected with the other end of the second valve, The other end of the second throttle is connected with the import of the evaporator；The outlet of the evaporator and entering for the air accumulator Mouth connection；The outlet of the air accumulator is connected with the other end of the 3rd valve；The temperature-sensing probe is located at the server In rack, the liquid level induction system is in the fluid reservoir, and the temperature-sensing probe connects with the liquid level induction system It is connected to the sensor；The controller respectively with the compressor, first valve, second valve, the described 3rd Valve connects with the sensor；Methods described specifically comprises the following steps：Temperature T in step 10, the setting server cabinetinBoundary value To；Set the liquid level V in the fluid reservoirinSide Dividing value Vl1With threshold value Vl2；Set three kinds of kind of refrigeration cycle patterns of the machinery room energy-saving air conditioner system, i.e. compressor cooling cyclic module Formula, uncompressed mechanism cold circulation pattern and half-compressed mechanism cold circulation pattern；Step 20, the sensor continuously detect the temperature T in the server cabinetinAnd the liquid level in the fluid reservoir Vin, work as Tin＞ ToWhen, into the compressor cooling circulation pattern, the sensor gives the signal instruction of controller one, institute State controller and open compressor, first valve, second valve and the 3rd valve, the compressor is drawn The refrigerant vapour of low-temp low-pressure in the air accumulator, after being compressed into the refrigerant vapour of HTHP, through computer room outside institute State condenser radiating be condensed into high-temperature high-pressure refrigerant liquid after, through the first throttle valve throttling for low-temp low-pressure refrigerant After liquid, into the fluid reservoir, then after second throttle throttling, the refrigerant liquid of low-temp low-pressure enters the steaming Hair device heat absorption is vaporized into the refrigerant vapour of low-temp low-pressure, sucks into the air accumulator, then by the compressor, follows repeatedly Ring；Now, the temperature T in the server cabinetinConstantly decline, it is described with the Wen Duxiajiang in the server cabinet It is fewer to be used for the amount of server cabinet evaporation in refrigerant liquid in fluid reservoir, and is stored in the fluid reservoir Amount is more so that the liquid level V in the fluid reservoirinConstantly rise, until the sensor detects the server cabinet Interior temperature Tin≤ToAnd the liquid level V in the fluid reservoirinMeet scope Vl1＜ Vin＜ Vl2When, into step 30；Step 30, into the uncompressed mechanism cold circulation pattern, the sensor gives the signal instruction of controller one, described Controller closes compressor, first valve and the 3rd valve, opens second valve, in the fluid reservoir Low-temp low-pressure refrigerant liquid through the second throttle throttling after, into the evaporator heat absorption be vaporized into low-temp low-pressure Refrigerant vapour, into the air accumulator, iterative cycles；Now, the temperature T in the server cabinetinConstantly rise, with The temperature in the server cabinet rises, and the server cabinet is used in the refrigerant liquid in the fluid reservoir and is evaporated Amount it is more, and the amount being stored in the fluid reservoir is fewer so that the liquid level V in the fluid reservoirinConstantly decline, when The sensor detects the temperature T in the server cabinetin≤ToAnd the liquid level V in the fluid reservoirinMeet the ＜ of scope 0 Vin≤Vl1When, into step 40；Otherwise, into step 20；Step 40, into the half-compressed mechanism cold circulation pattern, the sensor gives the signal instruction of controller one, described Controller opens the compressor, first valve, the 3rd valve, turns second valve opening, the compression down Machine draws the refrigerant vapour of the low-temp low-pressure in the air accumulator, after being compressed into the refrigerant vapour of HTHP, through computer room It is low-temp low-pressure through first throttle valve throttling after outer condenser radiating is condensed into high-temperature high-pressure refrigerant liquid After refrigerant liquid, into the fluid reservoir, the refrigerant liquid of a portion low-temp low-pressure stays in the fluid reservoir, another Again after second throttle throttling, the refrigerant liquid of this part low-temp low-pressure enters the refrigerant liquid of part low-temp low-pressure Enter the refrigerant vapour that the evaporator heat absorption is vaporized into low-temp low-pressure, into the air accumulator, the refrigeration in the air accumulator Agent steam is sucked by the compressor again, iterative cycles；Now, the temperature T in the server cabinetinConstantly decline, with Wen Duxiajiang in the server cabinet, it is used for server cabinet evaporation in the refrigerant liquid in the fluid reservoir Amount is fewer, and the amount being stored in the fluid reservoir is more so that the liquid level V in the fluid reservoirinConstantly rise, work as institute State sensor and detect temperature T in the server cabinetin≤ToAnd liquid level V in the fluid reservoirinMeet scope Vin=Vl2 When, into step 30；Otherwise, into step 20.
- A kind of 2. control method of direct-expansion-type machinery room energy-saving air conditioner according to claim 1, it is characterised in that：It is described The control mode of first valve, second valve and the 3rd valve is electronic or hydraulic drive.
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| CN106585321B (en) * | 2016-12-20 | 2023-05-12 | 福建工程学院 | Automobile air conditioning system and control method thereof |
| CN109506407A (en) * | 2018-11-09 | 2019-03-22 | 福建工程学院 | Tealeaves freezer and its working method |
| CN113959122B (en) * | 2021-09-16 | 2023-03-31 | 青岛海尔空调电子有限公司 | Refrigeration system, control method and control device for refrigeration system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006308230A (en) * | 2005-04-28 | 2006-11-09 | Denso Corp | Refrigerating cycle control device |
| WO2008018698A1 (en) * | 2006-08-10 | 2008-02-14 | Sconet Co., Ltd. | Heat pump-type heating apparatus |
| CN201265975Y (en) * | 2008-08-05 | 2009-07-01 | 艾默生网络能源有限公司 | Air conditioner used for high heat density surroundings |
| CN101512255A (en) * | 2006-09-29 | 2009-08-19 | 开利公司 | Refrigerant vapor compression system with flash tank receiver |
| CN102119307A (en) * | 2008-06-18 | 2011-07-06 | 惠而浦股份有限公司 | Refrigeration system |
| CN102155827A (en) * | 2011-03-01 | 2011-08-17 | 合肥天鹅制冷科技有限公司 | Refrigeration cycle system of wide-temperature air conditioner |
| CN205174902U (en) * | 2015-11-27 | 2016-04-20 | 福建工程学院 | Energy -conserving air conditioning system of direct expansion formula computer lab |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7810353B2 (en) * | 2005-05-27 | 2010-10-12 | Purdue Research Foundation | Heat pump system with multi-stage compression |
-
2015
- 2015-11-27 CN CN201510844368.0A patent/CN105352211B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006308230A (en) * | 2005-04-28 | 2006-11-09 | Denso Corp | Refrigerating cycle control device |
| WO2008018698A1 (en) * | 2006-08-10 | 2008-02-14 | Sconet Co., Ltd. | Heat pump-type heating apparatus |
| CN101512255A (en) * | 2006-09-29 | 2009-08-19 | 开利公司 | Refrigerant vapor compression system with flash tank receiver |
| CN102119307A (en) * | 2008-06-18 | 2011-07-06 | 惠而浦股份有限公司 | Refrigeration system |
| CN201265975Y (en) * | 2008-08-05 | 2009-07-01 | 艾默生网络能源有限公司 | Air conditioner used for high heat density surroundings |
| CN102155827A (en) * | 2011-03-01 | 2011-08-17 | 合肥天鹅制冷科技有限公司 | Refrigeration cycle system of wide-temperature air conditioner |
| CN205174902U (en) * | 2015-11-27 | 2016-04-20 | 福建工程学院 | Energy -conserving air conditioning system of direct expansion formula computer lab |
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