CN202303727U - Direct evaporating ice-storage refrigerating system - Google Patents
Direct evaporating ice-storage refrigerating system Download PDFInfo
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- CN202303727U CN202303727U CN2011203966862U CN201120396686U CN202303727U CN 202303727 U CN202303727 U CN 202303727U CN 2011203966862 U CN2011203966862 U CN 2011203966862U CN 201120396686 U CN201120396686 U CN 201120396686U CN 202303727 U CN202303727 U CN 202303727U
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Abstract
A direct evaporating ice-storage refrigerating system relates to the technical field of refrigerating air conditioners. The direct evaporating ice-storage refrigerating system comprises a refrigerating unit, a terminal device, an ice-making unit, a heat exchanging device and an ice storing tank, wherein an evaporator of the ice-making unit is arranged inside the ice storing tank; the ice storing tank is connected with a cold fluid passage of the heat exchanging device; a hot fluid passage of the heat exchanging device is connected with the terminal device; a pipeline is arranged between a condenser of the ice-making unit and the evaporator of the refrigerating unit in a loop manner; a circulating pump and a control valve are correspondingly arranged on the pipeline; and cooling water of the condenser of the ice-making unit is pre-cooled by the refrigerating unit to 2-20 DEG C and is supplied to the condenser. The direct evaporating ice-storage refrigerating system solves the problems that the conventional refrigerating unit cannot work under an ice-making working condition, an air-cooling ice-making unit is large in compression ratio, high in cost and complicated in control; the cost of the refrigerating system can be reduced; and the ice-making efficiency and the running stability can be improved.
Description
Technical field
The utility model relates to refrigeration technology field, particularly the refrigeration and air-conditioning technical field.
Background technology
Conventional refrigeration system generally is made up of refrigeration plant, low-temperature receiver device, end equipment, auxiliary equipment, connecting line and control system etc.Using the widest refrigeration plant is the vapor compression refrigerator group, connects into loop by evaporimeter, compressor, condenser, throttling arrangement through copper pipe, fills cold-producing medium in the loop.Refrigeration unit when work, cold-producing medium in evaporimeter, compressor, condenser, throttling arrangement, circulate evaporate, compression, condensation, four processes of throttling, heat is transferred to condenser from evaporimeter.
In the typical refrigeration system, refrigeration unit is a water-cooled cold water refrigeration unit---promptly be media discharge heat and the refrigeration unit of carrying cold with water; The low-temperature receiver device is a cooling tower; End equipment is fan coil or air-treatment unit.
The evaporimeter of refrigeration unit and end equipment are formed the chilled water closed circuit through pipeline and water pump.Chilled water is transported in the evaporimeter by water pump; Absorbed heat and be cooled to about 7 ℃ by cold-producing medium; Be transported to heat that end equipment absorbs room air to reduce indoor air temperature through pipeline; Chilled water then rises to about 12 ℃ because of absorbing room air heat temperature, again through in pipeline and the water pump Returning evaporimeter.
The condenser of refrigeration unit and cooling tower are formed cooling water circulation loop through pipeline and water pump.Cooling water is transported in the condenser by water pump, and the heat of absorption refrigeration agent and being heated to about 37 ℃ is transported in the cooling tower through pipeline, is cooled to about 32 ℃ to the outdoor air heat radiation through cooling tower, again through in pipeline and the return condensed device of water pump.
Except mode through cooling tower, also have water-cooled cold water refrigeration unit through the mode discharges heat of ground pipe laying, underground water, surface water, these water-cooled cold water refrigeration unit are also referred to as earth source heat pump unit, water source heat pump units.
Except being the media discharge heat with water, also having with the air is the refrigeration unit of media discharge heat, and this refrigeration unit is called wind-cooled cold-water unit or net for air-source heat pump units.
Above refrigeration unit is in when refrigeration, and the leaving water temperature of chilled water but also can be about 18 ℃ generally about 7 ℃; In any case, because of its temperature all far above 0 ℃, can not ice making, so be called conventional refrigeration unit.
The shortcoming of the conventional refrigeration system of forming with conventional refrigeration unit is:
1, for ensureing the air-conditioning refrigeration duty cooling of peak period, the capacity of refrigeration unit must satisfy the peak value refrigeration duty, causes installed capacity excessive, has increased the initial cost of equipment; And system's most of the time is all moved under sub-load, has also reduced the operational efficiency and the utilization rate of equipment;
2, be not suitable for the part period and need the Air-conditioning Engineering of subsequent use refrigerating capacity;
3, be not suitable for to provide low-temperature cold water maybe need adopt the Air-conditioning Engineering of cold air distribution;
4, be not suitable for the Air-conditioning Engineering that power capacity or supply of electric power are restricted;
5, air-conditioning refrigeration duty peak overlaps with electrical network peak period, has aggravated the tensity of mains supply.
Existing ice cold-storage Refrigeration Technique, the phase-change characteristic of utilization ice and water, period low at network load, that electricity price is cheap such as night, electricity consumption makes refrigerating device refrigeration, through the mode of ice making, is that main form stores in ice with the latent heat of phase change with cold; And high at network load, that electricity price is expensive period such as daytime, the mode through ice-melt discharges the cold that stores in the ice, to satisfy air conditioning or production technology with cold demand.
Existing ice regenerative cooling system is made up of refrigeration plant, ice-storage equipment, refrigerating medium, refrigerating medium-chilled water heat exchanger, low-temperature receiver device, end equipment, auxiliary equipment, connecting line and control system etc., can realize ice-reserving, ice-reserving cooling, the independent cooling of refrigeration plant, the independent cooling of ice storage unit, ice storage unit and five kinds of operational modes of refrigeration plant associating cooling simultaneously.
The refrigeration plant of existing ice regenerative cooling system is generally duplexing condition refrigeration unit.
Identical with conventional refrigeration unit is, duplexing condition refrigeration unit also is the vapor compression refrigerator group, comprise through cooling tower, water-cooled unit and the air-cooled unit of the mode discharges heat through air of mode discharges heat of pipe laying, underground water, surface water.
Different with conventional refrigeration unit is that the operating condition of duplexing condition refrigeration unit has two kinds, i.e. cooling condition and ice making operating mode.When under cooling condition, moving, the refrigerating medium outlet temperature of duplexing condition refrigeration unit is the same with conventional refrigeration unit to be about 7 ℃; And when under the ice making operating mode, moving, the refrigerating medium outlet temperature of duplexing condition refrigeration unit then is-5 ℃～-15 ℃.
The shortcoming of duplex condition refrigeration unit is:
When 1, duplexing condition refrigeration unit was moved under the ice making operating mode, its refrigerating medium outlet temperature reduced by 12 ℃～22 ℃, 12 ℃～22 ℃ of the also corresponding reductions of its evaporating temperature than the chilled water leaving water temperature of conventional refrigeration unit.So that no matter in which way discharges heat, under the identical situation of condensation temperature, the compression ratio of the compressor of duplexing condition refrigeration unit is big more than conventional refrigeration unit all.Under the mode with modal cooling tower discharges heat, the leaving water temperature of the cooling water of refrigeration unit is about 37 ℃, and corresponding condensation temperature is about 42 ℃; The evaporating temperature of duplex condition refrigeration unit under the ice making operating mode is-10 ℃～-20 ℃, and the compression ratio of its compressor is 4.5～6.6; And the evaporating temperature of conventional refrigeration unit is about 2 ℃, and the compression ratio of compressor is merely about 3.0.And compression ratio is big more, and then Energy Efficiency Ratio is low more.Thereby in refrigeration, can both reach the duplexing condition refrigeration unit of high energy efficiency ratio under two kinds of operating modes of ice making, specification requirement is high, and technological requirement is high, and cost is expensive;
2, duplexing condition refrigeration unit need freeze, the alternate run of two kinds of operating modes of ice making; Even need freeze, the time operation of two kinds of operating modes of ice making; Every kind of operating mode all has the requirement of different cooling temperatures and cooling amount, makes refrigeration unit be difficult to reach and under all operating modes, move all to keep higher running efficiency and operation stability.Simultaneously, the control system of duplexing condition refrigeration unit is also very complicated, has further increased cost, and has increased fault rate.
When 3, duplexing condition refrigeration unit was moved under the ice making operating mode, evaporating temperature reduced by 12 ℃～22 ℃ than conventional refrigeration unit.And 1 ℃ of the every reduction of evaporating temperature, refrigerating capacity can reduce 2%～3%.Refrigerating capacity when therefore, duplexing condition refrigeration unit is moved under the ice making operating mode can reduce 24%～66%.
Therefore, adopt the ice regenerative cooling system of duplexing condition refrigeration unit, system cost is high, when particularly existing conventional refrigeration system being iced the cold-storage transformation, needs with the expensive existing conventional refrigeration unit of duplexing condition refrigeration unit replacement.And conventional refrigeration unit existing, the ability operate as normal promptly goes out of use, and causes serious waste.In addition, also there are system pipeline complicacy, system's control complicated problems.
Summary of the invention
The utility model purpose is to design a kind of reduction refrigeration system cost, improves the ice regenerative cooling system of ice making efficient and operation stability.
The end equipment that the utility model comprises refrigeration unit, is communicated with through the first pipeline loop with the evaporimeter of refrigeration unit; Also comprise ice making unit, heat-exchanger rig, Ice Storage Tank; The evaporimeter of said ice making unit is arranged in the Ice Storage Tank, and said Ice Storage Tank is connected through the second pipeline loop with the cold fluid pass of heat-exchanger rig; Zone of heat liberation in the said heat-exchanger rig is connected with the end equipment loop through the 3rd pipeline; Also comprise the circulating pump and the control valve that are arranged on each pipeline, it is characterized in that: loop is provided with the 4th pipeline between the condenser of ice making unit and the evaporimeter of refrigeration unit, on said the 4th pipeline, corresponding circulating pump and control valve is set.
The utility model has overcome problems such as conventional refrigeration unit can not be worked, air-cooled ice making unit compression ratio is big, cost is high, control complicacy under the ice making operating mode, can reduce the refrigeration system cost, improves ice making efficient and operation stability.
The concrete technical scheme of the utility model is: the evaporimeter of the said refrigeration unit of the utility model, end equipment and first chilled water pump are connected through first pipeline loop successively; Other the 3rd pipeline that connects on first pipeline between the said end equipment and first chilled water pump; The zone of heat liberation of serial connection second chilled water pump, heat-exchanger rig on said the 3rd pipeline, the other end of said the 3rd pipeline is other to be connected on first pipeline between the evaporimeter of said end equipment and said refrigeration unit; The cold fluid pass of said heat-exchanger rig, the 3rd chilled water pump and Ice Storage Tank are connected through the mutual loop of second pipeline; With pipeline that the evaporator outlet of said refrigeration unit is connected on other the 4th pipeline that connects; The other end of said the 4th pipeline is other to be connected on the pipeline that is connected with the said first chilled water pump import, the condenser and first valve of serial connection ice making unit on said the 4th pipeline; On first pipeline between said the 4th pipeline and the said end equipment, second valve is set.
The utility model is cut apart the function of the duplexing condition refrigeration unit of prior art, is carried out various combinations and is realized by conventional refrigeration unit and two groups of refrigeration unit of ice making unit.Under the ice making operating mode, carry out ice making by two groups of refrigeration unit associated working---the chilled water the supply system ice maker group that conventional refrigeration unit is produced is to make its cooling water, and the ice making unit is the refrigerating medium ice making that the low-temperature receiver device is produced with conventional refrigeration unit then; And the compression ratio of every group of refrigeration unit is all much smaller than existing duplexing condition refrigeration unit.Under cooling condition, then work independently and freeze by conventional refrigeration unit.The utility model has reduced the cost of ice regenerative cooling system, particularly when existing conventional refrigeration system being iced the cold-storage transformation, can utilize existing conventional refrigeration unit, avoids waste.Simultaneously, also simplify the pipeline and the control of ice regenerative cooling system, improved the efficient of ice regenerative cooling system.
The 3rd chilled water pump in the utility model can adopt the change flow-type chilled water pump of modes such as frequency conversion; Be beneficial to the flow of the refrigerating medium of regulating the cold fluid pass that gets into heat-exchanger rig; Improve heat exchanger effectiveness; The supply water temperature of the zone of heat liberation of control heat-exchanger rig satisfies the demand that end equipment changes refrigeration duty.
The utility model also can connect the 5th pipeline between second pipeline at the cold fluid pass two ends of said connection heat-exchanger rig; Serial connection the 3rd valve is connected in series the 4th valve on second pipeline between the cold fluid pass of said the 5th pipeline and said heat-exchanger rig on said the 5th pipeline.Get into the flow of refrigerating medium of the cold fluid pass of heat-exchanger rig through the 3rd valve, the 4th valve regulated, improve heat exchanger effectiveness, the supply water temperature of the zone of heat liberation of control heat-exchanger rig is to satisfy the demand that end equipment changes refrigeration duty.
The utility model also can connect the 5th pipeline between second pipeline at the cold fluid pass two ends of said connection heat-exchanger rig, mouthful be connected in series a three-way valve crossing of said the 5th pipeline and second pipeline.Regulate to get into the flow of refrigerating medium of the cold fluid pass of heat-exchanger rig through three-way valve, improve heat exchanger effectiveness, the supply water temperature of the zone of heat liberation of control heat-exchanger rig is to satisfy the demand that end equipment changes refrigeration duty.
The utility model is also can be on second pipeline between the said connection Ice Storage Tank two ends other to connect the 5th pipeline, and serial connection the 3rd valve on said the 5th pipeline is connected in series the 4th valve on second pipeline between said the 5th pipeline and the said Ice Storage Tank.Get into the flow of refrigerating medium of the cold fluid pass of heat-exchanger rig through the 3rd valve, the 4th valve regulated, improve heat exchanger effectiveness, the supply water temperature of the zone of heat liberation of control heat-exchanger rig satisfies the demand that end equipment changes refrigeration duty.
The utility model also can connect the 5th pipeline between second pipeline of said connection Ice Storage Tank end, be connected in series a three-way valve at said the 5th pipeline with the mouth that crosses of second pipeline.Regulate to get into the flow of refrigerating medium of the cold fluid pass of heat-exchanger rig through three-way valve, improve heat exchanger effectiveness, the supply water temperature of the zone of heat liberation of control heat-exchanger rig satisfies the demand that end equipment changes refrigeration duty.
The beneficial effect of the utility model is:
One, improves ice making efficient, reduce the cost of ice making unit
The ice making unit of the utility model adopts 2～20 ℃ chilled water that conventional refrigeration unit supplies as its cooling water; Its corresponding condensation temperature is 12～30 ℃; Condensation temperature (42 ℃) than existing duplexing condition refrigeration unit descends 12～30 ℃; Make the corresponding decline of condensing pressure of ice making unit, the compression ratio of ice making unit is compared existing duplexing condition refrigeration unit and has been descended 25.96%～55.10% as a result, thereby the Energy Efficiency Ratio that has improved the ice making unit greatly is an operational efficiency; Simultaneously, also greatly reduce the specification requirement and the technological requirement of ice making unit, make ice machine form this and greatly reduce.
Two, improve the operation stability of ice making unit, simplify the control of ice making unit
The ice making unit of the utility model is only with a kind of operating mode work of ice making, and it is constant that its evaporating temperature and delivery temperature all keep, and need not frequent adjusting, improved the operation stability of ice making unit greatly.Simultaneously, the control of ice making unit is simplified greatly, has further reduced the cost and the fault rate of ice making unit.
Three, improve the refrigerating capacity of ice making unit, reduce the installed capacity of ice making unit in the ice regenerative cooling system
As everyone knows, 1 ℃ of the every reduction of the condensation temperature of refrigeration unit, its refrigerating capacity can improve 1.5%.The condensation temperature of the ice making unit of the utility model is 12～30 ℃, descends 12～30 ℃ than the condensation temperature (42 ℃) of existing duplexing condition refrigeration unit, and the refrigerating capacity of ice making unit can improve 18%～45%; Accordingly, also significantly reduced the installed capacity of ice making unit in the ice regenerative cooling system.
Four, reduce the cost of ice regenerative cooling system
The refrigeration unit of the utility model, no matter the ice making unit still is conventional refrigeration unit, and cost all is significantly less than existing duplexing condition refrigeration unit.Under the identical situation of total refrigeration duty, the totle drilling cost of two groups of refrigeration unit of the utility model still obviously reduces than the cost of duplexing condition refrigeration unit, thereby has reduced the cost of ice regenerative cooling system.
Five, the composition of ice regenerative cooling system and operation are more flexible
The ice regenerative cooling system of the utility model is made up of ice making unit and conventional refrigeration unit, and refrigeration duty is born by ice making unit and conventional refrigeration unit jointly.The utility model can be free, neatly assignment system ice maker group and conventional refrigeration unit share refrigeration duty separately ratio to adapt to the refrigeration duty of various different situations, improved the flexibility that the ice regenerative cooling system forms and the flexibility of operation greatly.
Six, simplify the pipeline and the control of ice regenerative cooling system
The ice regenerative cooling system of the utility model is divided into ice making, refrigeration two parts, and conventional refrigeration unit is only with a kind of operating mode work of freezing, and the ice making unit is only with a kind of operating mode work of ice making, thus the pipeline of simplification system and the control of system.
Seven, reduce the cost of existing conventional refrigeration system being iced the cold-storage transformation
The refrigerating capacity of the conventional refrigeration unit of conventional refrigeration system is based on and satisfies day peak load configuration, and the refrigeration duty at night more than day peak load low, so the refrigerating capacity at conventional refrigeration unit night is much larger than the refrigeration duty at night.When existing conventional refrigeration system being iced the cold-storage transformation, only need the very little ice making unit of allocating power, can implement the technical scheme of the utility model, can satisfy the refrigeration duty of ice making, made full use of conventional refrigeration unit refrigerating capacity more than needed at night again; Need not the more duplexing condition refrigeration unit of costliness is discarded and acquired to conventional refrigeration unit existing, the ability operate as normal, greatly reduced existing conventional refrigeration system is iced the cost that cold-storage is transformed.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model.
Fig. 2 is second kind of structural representation of the utility model.
Fig. 3 is the third structural representation of the utility model.
Fig. 4 is the 4th kind of structural representation of the utility model.
Fig. 5 is the 5th kind of structural representation of the utility model.
The specific embodiment
One, embodiment one:
As shown in Figure 1, the utility model comprises that the evaporimeter 1-2 of refrigeration unit 1, end equipment 3, first chilled water pump, 2, the first chilled water pumps 2, refrigeration unit 1 is connected through first pipeline 4 loop successively with end equipment 3.
Install other the 3rd pipeline 5 that connects on first pipeline 4 between 3 and first chilled water pump 2 endways; The other end of the 3rd pipeline 5 is other to be connected on first pipeline 4 between end equipment 3 and the refrigeration unit 1, on the 3rd pipeline 5, is connected in series the zone of heat liberation 7-1 of second chilled water pump 6, heat-exchanger rig 7.
The cold fluid pass 7-2 of heat-exchanger rig 7, (change flow-type) the 3rd chilled water pump 8 and Ice Storage Tank 9 are connected through second pipeline, 10 loops.
The evaporimeter 13-1 of ice making unit 13 is arranged in the Ice Storage Tank 9.
Exporting other the 4th pipeline 12 that connects on the pipeline that is connected with the evaporimeter 1-2 of refrigeration unit 1; The other end of the 4th pipeline 12 is other to be connected on the pipeline that is connected with 2 imports of first chilled water pump, the condenser 13-2 and first valve 14 of serial connection ice making unit 13 on the 4th pipeline 12.
On first pipeline 4 between the 4th pipeline 12 and the end equipment 3, second valve 11 is set.
Through above connection, form:
1, chilled water circuit: the cold fluid pass 7-2 of Ice Storage Tank 9, the 3rd chilled water pump 8, heat-exchanger rig 7 is connected into a loop through chilled water tube connector.
2, secondary chilled water circuit: the condenser 13-2 of the evaporimeter of first chilled water pump 2, second chilled water pump 6, refrigeration unit 1, ice making unit, first valve 14, second valve 11, end equipment 3 (as: fan coil) are connected into a loop through secondary chilled water tube connector.
The utility model can be realized plurality of operating modes:
1, ice-reserving pattern
Second valve 11 is closed, and the 3rd chilled water pump 8, second chilled water pump 6 are out of service.
The cooling water of the condenser 13-2 of ice making unit is by supplying with after refrigeration unit 1 precooling to 2～20 ℃.
The secondary chilled water circuit: the secondary chilled water behind the absorption cold, flows into the condenser 13-2 of ice making unit through the evaporimeter 1-2 of first chilled water pump, 2 input refrigeration unit 1, behind the released cold quantity, returns first chilled water pump 2 through first valve 14 again, gets into next circulation.
Ice making unit (cold-producing medium) loop: the gaseous refrigerant of low-temp low-pressure is collapsed into the gaseous refrigerant of HTHP by ice making unit 13 inner compressors; Flow into the condenser 13-2 of ice making unit 13; Became cold anticyclone liquid through chilled water cooling, condensation; Throttling arrangement throttling step-down becomes the liquid state and the gaseous state mix refrigerant of low-temp low-pressure in ice making unit 13, gets into the evaporimeter 13-1 that is positioned at Ice Storage Tank 9, and the heat of vaporization that absorbs water in the Ice Storage Tank 9 becomes the gaseous refrigerant of low-temp low-pressure; Evaporimeter 13-1 surface is frozen, realize freezing the ice-reserving purpose; The gaseous refrigerant of low-temp low-pressure returns ice making unit 13 inner compressors, accomplishes the ice-reserving circulation.
The heat of vaporization of water becomes the gaseous refrigerant of low-temp low-pressure in the liquid refrigerant absorption Ice Storage Tank 9 of evaporimeter 13-1 in the Ice Storage Tank 9, and evaporimeter 13-1 surface is frozen, and realizes freezing the ice-reserving purpose; The gaseous refrigerant of low-temp low-pressure gets into ice making unit 13; Become the gaseous refrigerant of HTHP by compressor compresses; Flow into condenser 13-2; Condensation became the liquid state and the gaseous state mix refrigerant of cold anticyclone liquid throttling step-down in throttle mechanism becoming low-temp low-pressure after the chilled water cooling, and returned the evaporimeter 13-1 in the Ice Storage Tank 9, accomplished the ice-reserving circulation.
2, ice-reserving while cooling pattern:
First and second valve 14,11 is opened, 2 operations of first chilled water pump, refrigeration unit 1, the 13 start operations of ice making unit;
The 3rd chilled water pump 8, second chilled water pump 6 are out of service.
The cooling water of the condenser 13-2 of ice making unit is by supplying with after refrigeration unit 1 precooling to 2～20 ℃.
The secondary chilled water circuit: the secondary chilled water is after the evaporimeter 1-2 of first chilled water pump, 2 input refrigeration unit 1 absorbs cold; A part flows into the condenser 13-2 of ice making unit 13; Behind the released cold quantity, return first chilled water pump 2 through first valve 14 again, get into next circulation; Another part then flows into end equipment 3 coolings, behind the released cold quantity, returns first chilled water pump 2 through second valve 11 again, gets into next circulation.
Ice making unit (cold-producing medium) loop: the gaseous refrigerant of low-temp low-pressure is collapsed into the gaseous refrigerant of HTHP by ice making unit 13 inner compressors; Flow into the condenser 13-2 of ice making unit 13; Became cold anticyclone liquid through chilled water cooling, condensation; Throttling arrangement throttling step-down becomes the liquid state and the gaseous state mix refrigerant of low-temp low-pressure in ice making unit 13, gets into the evaporimeter 13-1 that is positioned at Ice Storage Tank 9, and the heat of vaporization that absorbs water in the Ice Storage Tank 9 becomes the gaseous refrigerant of low-temp low-pressure; Evaporimeter 13-1 surface is frozen, realize freezing the ice-reserving purpose; The gaseous refrigerant of low-temp low-pressure returns ice making unit 13 inner compressors, accomplishes the ice-reserving circulation.
The heat of vaporization of the liquid refrigerant absorption ice-reserving trough inner water of the evaporimeter 13-1 in the Ice Storage Tank 9 becomes the gaseous refrigerant of low-temp low-pressure, and evaporimeter 13-1 surface is frozen, and realizes freezing the ice-reserving purpose; The gaseous refrigerant of low-temp low-pressure gets into the ice making unit; Become the gaseous refrigerant of HTHP by compressor compresses; Flow into condenser 13-2; Condensation became the liquid state and the gaseous state mix refrigerant of cold anticyclone liquid throttling step-down in throttle mechanism becoming low-temp low-pressure after the chilled water cooling, and returned the evaporimeter 13-1 in the Ice Storage Tank 9, accomplished the ice-reserving circulation.
3, the independent cooling pattern of conventional unit:
Second valve 11 is opened, 2 operations of first chilled water pump; Refrigeration unit 1 start operation;
The secondary chilled water circuit: the secondary chilled water behind the absorption cold, flows into end equipment 3 coolings through the evaporimeter 1-2 of first chilled water pump, 2 input refrigeration unit 1, behind the released cold quantity, returns first chilled water pump 2 through second valve 11 again, gets into next circulation.
4, the independent cooling pattern of Ice Storage Tank:
Second valve 11 is opened, the 3rd chilled water pump 8,6 operations of second chilled water pump;
A chilled water circuit: the cold fluid pass 7-2 of chilled water warp the 3rd chilled water pump 8 input heat-exchanger rigs 7, behind the released cold quantity, get in the Ice Storage Tank 9, behind the absorption cold, return the 3rd chilled water pump 8, get into next circulation.
The 3rd chilled water pump 8 regulating frequencies regulate to get into the chilled-water flow of the cold fluid pass 7-2 of heat-exchanger rig 7, with the temperature of the chilled water of the zone of heat liberation 7-1 that regulates heat-exchanger rig 7.
The secondary chilled water circuit: the secondary chilled water behind the absorption cold, flows into end equipment 3 coolings through the zone of heat liberation 7-1 of second chilled water pump, 6 input heat-exchanger rigs 7, behind the released cold quantity, through second valve 11, returns second chilled water pump 6 again, gets into next circulation.
5, Ice Storage Tank and conventional unit associating cooling pattern:
Second valve 11 is opened, the 3rd chilled water pump 8, first chilled water pump 2,6 operations of second chilled water pump, refrigeration unit 1 start operation;
A chilled water circuit: the cold fluid pass 7-2 of chilled water warp the 3rd chilled water pump 8 input heat-exchanger rigs 7, behind the released cold quantity, get in the Ice Storage Tank 9, behind the absorption cold, return the 3rd chilled water pump 8, get into next circulation.
The 3rd chilled water pump 8 regulating frequencies regulate to get into the chilled-water flow of the cold fluid pass 7-2 of heat-exchanger rig 7, with the temperature of the chilled water of the zone of heat liberation 7-1 that regulates heat-exchanger rig 7.
The secondary chilled water circuit: the part of secondary chilled water behind the absorption cold, flows into end equipment 3 coolings through the zone of heat liberation 7-1 of second chilled water pump, 6 input heat-exchanger rigs 7; Behind the released cold quantity; Through second valve 11, return second chilled water pump 6 again, get into next circulation; Another part of secondary chilled water behind the absorption cold, flows into end equipment 3 coolings through the evaporimeter 1-2 of first chilled water pump, 2 input refrigeration unit 1, behind the released cold quantity, through second valve 11, returns first chilled water pump 2 again, gets into next circulation.
Two, embodiment two:
As shown in Figure 2, other with embodiment one, but the 3rd chilled water pump 8 is common chilled water pump.
In addition; Between second pipeline 10 at the cold fluid pass 7-2 two ends that connect heat-exchanger rig 7, connect the 5th pipeline 16; Serial connection the 3rd valve 17 is connected in series the 4th valve 18 on second pipeline 10 between the cold fluid pass 7-2 of the 5th pipeline 16 and heat-exchanger rig 7 on the 5th pipeline 16.
Regulate the chilled-water flow of the cold fluid pass 7-2 that gets into heat-exchanger rigs 7 through valve 17, valve 18, with the secondary chilled water temperature among the zone of heat liberation 7-1 that regulates heat-exchanger rig 7.
Three, embodiment three:
As shown in Figure 3, other with embodiment one, but the 3rd chilled water pump 8 is common chilled water pump.
In addition, between second pipeline 10 at the cold fluid pass 7-2 two ends that connect heat-exchanger rig 7, connect the 5th pipeline 16, be connected in series a three-way valve 17 with the mouth that crosses of second pipeline 10 at the 5th pipeline 16.
Regulate the chilled-water flow of the cold fluid pass 7-2 that gets into heat-exchanger rigs 7 through three-way valve 17, with the secondary chilled water temperature among the zone of heat liberation 7-1 that regulates heat-exchanger rig 7.
Four, embodiment four:
As shown in Figure 4, other with embodiment one, but the 3rd chilled water pump 8 is common chilled water pump.
In addition, between second pipeline 10 that connects Ice Storage Tank 9 two ends, connect the 5th pipeline 16, serial connection the 3rd valve 17 on the 5th pipeline 16 is connected in series the 4th valve 18 on second pipeline 10 between the 5th pipeline 16 and the Ice Storage Tank 9.
Regulate the chilled water temperature of the cold fluid pass 7-2 that gets into heat-exchanger rigs 7 through the 3rd valve 17, the 4th valve 18, with the secondary chilled water temperature among the zone of heat liberation 7-1 that regulates heat-exchanger rig 7.
Five, embodiment five:
As shown in Figure 5, other with embodiment one, but the 3rd chilled water pump 8 is common chilled water pump.
In addition, between second pipeline 10 that connects Ice Storage Tank 9 two ends, connect the 5th pipeline 16, be connected in series a three-way valve 17 with the mouth that crosses of second pipeline 10 at the 5th pipeline 16.
Regulate the chilled water temperature of the cold fluid pass 7-2 that gets into heat-exchanger rigs 7 through three-way valve 17, with the secondary chilled water temperature among the zone of heat liberation 7-1 that regulates heat-exchanger rig 7.
Claims (7)
1. directly vaporation-type is iced regenerative cooling system; The end equipment that comprises refrigeration unit, is communicated with through the first pipeline loop with the evaporimeter of refrigeration unit; Also comprise ice making unit, heat-exchanger rig, Ice Storage Tank; The evaporimeter of said ice making unit is arranged in the Ice Storage Tank, and said Ice Storage Tank is connected through the second pipeline loop with the cold fluid pass of heat-exchanger rig; Zone of heat liberation in the said heat-exchanger rig is connected with the end equipment loop through the 3rd pipeline; Also comprise the circulating pump and the control valve that are arranged on each said pipeline, it is characterized in that: loop is provided with the 4th pipeline between the condenser of ice making unit and the evaporimeter of refrigeration unit, on said the 4th pipeline, corresponding circulating pump and control valve is set.
2. according to the said direct vaporation-type ice regenerative cooling system of claim 1, it is characterized in that evaporimeter, end equipment and first chilled water pump of said refrigeration unit is connected through first pipeline loop successively; Other the 3rd pipeline that connects on first pipeline between the said end equipment and first chilled water pump; The zone of heat liberation of serial connection second chilled water pump, heat-exchanger rig on said the 3rd pipeline, the other end of said the 3rd pipeline is other to be connected on first pipeline between the evaporimeter of said end equipment and said refrigeration unit; The cold fluid pass of said heat-exchanger rig, the 3rd chilled water pump and Ice Storage Tank are connected through the mutual loop of second pipeline; With pipeline that the evaporator outlet of said refrigeration unit is connected on other the 4th pipeline that connects; The other end of said the 4th pipeline is other to be connected on the pipeline that is connected with the said first chilled water pump import, the condenser and first valve of serial connection ice making unit on said the 4th pipeline; On first pipeline between said the 4th pipeline and the said end equipment, second valve is set.
3. according to the said direct vaporation-type ice regenerative cooling system of claim 2, it is characterized in that said the 3rd chilled water pump is for becoming the flow-type chilled water pump.
4. according to the said direct vaporation-type ice regenerative cooling system of claim 2; It is characterized in that between second pipeline at the cold fluid pass two ends of said connection heat-exchanger rig, connecting the 5th pipeline; Serial connection the 3rd valve is connected in series the 4th valve on second pipeline between the cold fluid pass of said the 5th pipeline and said heat-exchanger rig on said the 5th pipeline.
5. according to the said direct vaporation-type ice regenerative cooling system of claim 2; It is characterized in that between second pipeline at the cold fluid pass two ends of said connection heat-exchanger rig, connecting the 5th pipeline, mouthful be connected in series a three-way valve crossing of said the 5th pipeline and second pipeline.
6. according to the said direct vaporation-type ice regenerative cooling system of claim 2; It is characterized in that other the 5th pipeline that connects on second pipeline between the said connection Ice Storage Tank two ends; Serial connection the 3rd valve is connected in series the 4th valve on second pipeline between said the 5th pipeline and the said Ice Storage Tank on said the 5th pipeline.
7. according to the said direct vaporation-type ice regenerative cooling system of claim 2, it is characterized in that between second pipeline of said connection Ice Storage Tank end, connecting the 5th pipeline, be connected in series a three-way valve with the mouth that crosses of second pipeline at said the 5th pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203966862U CN202303727U (en) | 2011-10-18 | 2011-10-18 | Direct evaporating ice-storage refrigerating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011203966862U CN202303727U (en) | 2011-10-18 | 2011-10-18 | Direct evaporating ice-storage refrigerating system |
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| CN202303727U true CN202303727U (en) | 2012-07-04 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506473A (en) * | 2011-10-18 | 2012-06-20 | 江苏七彩科技有限公司 | Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof |
| CN106369871A (en) * | 2016-10-27 | 2017-02-01 | 中国水产科学研究院渔业机械仪器研究所 | Ship air-conditioning system used for tail gas adsorption refrigeration and compression refrigeration unit recombination |
| CN110332632A (en) * | 2019-05-30 | 2019-10-15 | 苏州苏暖新能源节能技术服务有限公司 | Direct evaporating ice-storage refrigerating system |
-
2011
- 2011-10-18 CN CN2011203966862U patent/CN202303727U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102506473A (en) * | 2011-10-18 | 2012-06-20 | 江苏七彩科技有限公司 | Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof |
| CN102506473B (en) * | 2011-10-18 | 2014-06-11 | 江苏七彩科技有限公司 | Direct-evaporating type ice cold accumulation refrigerating system and refrigerating method thereof |
| CN106369871A (en) * | 2016-10-27 | 2017-02-01 | 中国水产科学研究院渔业机械仪器研究所 | Ship air-conditioning system used for tail gas adsorption refrigeration and compression refrigeration unit recombination |
| CN106369871B (en) * | 2016-10-27 | 2018-09-11 | 中国水产科学研究院渔业机械仪器研究所 | The marine air-conditioning system that tail gas adsorption refrigeration is used in combination with compression refigerating machine group |
| CN110332632A (en) * | 2019-05-30 | 2019-10-15 | 苏州苏暖新能源节能技术服务有限公司 | Direct evaporating ice-storage refrigerating system |
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