CN207006422U - Cold accumulation system - Google Patents
Cold accumulation system Download PDFInfo
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- CN207006422U CN207006422U CN201720565967.3U CN201720565967U CN207006422U CN 207006422 U CN207006422 U CN 207006422U CN 201720565967 U CN201720565967 U CN 201720565967U CN 207006422 U CN207006422 U CN 207006422U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model discloses a kind of cold accumulation system, including cold-storage water pot and handpiece Water Chilling Units, the handpiece Water Chilling Units include evaporator successively, compressor, condenser and expansion valve, the handpiece Water Chilling Units have at least two groups, the handpiece Water Chilling Units also include subcooler, the subcooler is connected between the condenser and the expansion valve, the subcooler includes subcooler water inlet pipe, subcooler outlet pipe, working medium feed tube and working medium drain pipe, the subcooler water inlet pipe and the subcooler outlet pipe are connected with the cold-storage water pot, the working medium feed tube is connected with the condenser, the working medium drain pipe is connected with the expansion valve.The utility model can increase the cold storage capacity of cold-storage water pot in the case where compressor horsepower is constant, and and can improves the refrigerating capacity of handpiece Water Chilling Units.
Description
Technical field
It the utility model is related to the technical field of water cool-storage technology, more particularly to a kind of cold accumulation system.
Background technology
Air-conditioner energy-accumulation technology is a kind of tune lotus technology being applied under Peak-valley TOU power price system.It is by user in night electricity
The made cold or thermmal storage of net electric load low ebb phase is got up, and is discharged again when needing daytime, and " peak is moved so as to reach power network
Fill valley ", the win-win situation of user's power cost saving.
Power network " peak load shifting ", the number of user's power cost saving are decided by the cold storage capacity of cold-storage water pot, the storage of cold-storage water pot
Cold is more, and caused economic benefit is better.
Meanwhile the refrigerating capacity of existing handpiece Water Chilling Units needs further to be improved.
Therefore, it is necessary to design a kind of cold storage capacity that can improve cold-storage water pot, and can improves the refrigerating capacity of handpiece Water Chilling Units
Cold accumulation system.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided a kind of cold-storage that can improve cold-storage water pot
Amount, and can improve the cold accumulation system of the refrigerating capacity of handpiece Water Chilling Units.
The utility model provides a kind of cold accumulation system, including cold-storage water pot and handpiece Water Chilling Units, the handpiece Water Chilling Units are wrapped successively
Evaporator, compressor, condenser and expansion valve are included, the handpiece Water Chilling Units there are at least two groups, and the handpiece Water Chilling Units also include supercooling
Device, the subcooler are connected between the condenser and the expansion valve, and the subcooler includes subcooler water inlet pipe, supercooling
Device outlet pipe, working medium feed tube and working medium drain pipe, the subcooler water inlet pipe and the subcooler outlet pipe and the cold-storage
Water pot is connected, and the working medium feed tube is connected with the condenser, and the working medium drain pipe is connected with the expansion valve.
Further, the cold-storage water pot includes upper water distributor and lower water-dispensing device, during the independent cooling of the handpiece Water Chilling Units,
The lower water-dispensing device connects with the subcooler water inlet pipe, and the upper water distributor connects with the subcooler outlet pipe.
Further, the cold-storage water pot includes upper water distributor and lower water-dispensing device, during the independent cold-storage of the cold-storage water pot, institute
State subcooler water inlet pipe and subcooler outlet pipe connects with the upper water distributor.
Further, the cold-storage water pot includes upper water distributor and lower water-dispensing device, and the cold-storage water pot cold-storage and is put simultaneously
When cold, the subcooler water inlet pipe and subcooler outlet pipe connect with the upper water distributor.
Further, the cold-storage water pot includes upper water distributor and lower water-dispensing device, and the evaporator is intake including evaporator
Pipe and evaporator outlet pipe, the evaporator outlet pipe connects with the lower water-dispensing device, the evaporator water inlet pipe and it is described on
Water-locator connects.
Further, the cold accumulation system also includes user terminal, and the user terminal includes water supply end and backwater end, the confession
Water end (W.E.) connects with the evaporator outlet pipe, and the backwater end connects with the evaporator water inlet pipe.
Further, the cold accumulation system also includes heat exchanger, and the heat exchanger further comprises that water at low temperature is intake
End, secondary water at low temperature water side, user's water supply end and user's backwater end, the water at low temperature water inlet end connect with the lower water-dispensing device,
The secondary water at low temperature water side connects with the upper water distributor, and user's water supply end connects with the water supply end, the user
Backwater end connects with the backwater end.
Further, the cold-storage water pot is let cool, while during the handpiece Water Chilling Units cooling, the subcooler water inlet pipe and institute
Time water at low temperature water side connection is stated, the subcooler outlet pipe connects with the upper water distributor.
Further, during the handpiece Water Chilling Units cooling, subcooler described in each group is in parallel, and evaporator described in each group is in parallel.
Further, during the cold-storage water pot cold-storage, subcooler described in each group is in parallel, evaporator series described in each group.
After adopting the above technical scheme, have the advantages that：
Secondary water at low temperature in cold-storage water pot is incorporated into subcooler by the utility model, and heat is obtained in subcooler, is risen
Secondary water at low temperature after temperature is flow back into cold-storage water pot, because the water temperature in cold-storage water pot adds, improves the storage of cold-storage water pot
Cold.On the other hand, subcooler has changed into the cold of secondary water at low temperature the refrigerating capacity of handpiece Water Chilling Units, that is, causes refrigeration working medium in mistake
Continue to cool down in cooler.The utility model can increase the cold storage capacity of cold-storage water pot, again in the case where compressor horsepower is constant
The refrigerating capacity of handpiece Water Chilling Units can be improved.
Brief description of the drawings
Referring to accompanying drawing, disclosure of the present utility model will be easier to understand.It should be understood that：These accompanying drawings are used only for
The purpose of explanation, and be not intended to and the scope of protection of the utility model is construed as limiting.In figure：
Fig. 1 is the structural representation of cold accumulation system in the embodiment of the utility model one；
Structural representation when Fig. 2 is the independent cooling of cold accumulation system in the embodiment of the utility model one；
Structural representation when Fig. 3 is the independent cold-storage of cold accumulation system in the embodiment of the utility model one；
Fig. 4 is structural representation when cold accumulation system is individually let cool in the embodiment of the utility model one；
Fig. 5 is cold accumulation system cooling, the structural representation that lets cool simultaneously in the embodiment of the utility model one；
Fig. 6 is cold accumulation system cold-storage, the structural representation that lets cool simultaneously in the embodiment of the utility model one；
Fig. 7 is the flow chart of the control method of cold accumulation system in another embodiment of the utility model.
The reference table of comparisons：
1- evaporator 11- evaporator water inlet pipe 12- evaporator outlet pipes
2- compressor 3- condenser 3a- subcoolers
3a1- subcooler water inlet pipe 3a2- subcooler outlet pipe 3a3- working medium feed tubes
3a4- working medium drain pipe 4- expansion valve 5- cold-storage water pots
51- upper water distributor 52- lower water-dispensing device 511- upper water distributor outlet pipes
521- lower water-dispensing device return duct 6- cold-storage water pump 61- cold-storage pump water inlets
62- cold-storage pumping lines 7- supercooling water pump 71- supercooling water pump inlets
72- subcooled waters pump out water end (W.E.) 8- water collection tank 81- water collection tank outlet pipes
9- divides water vat 91- to divide water vat water inlet pipe 10- cooling water pumps
101- cooling pump water inlet 102- cooling pumping line 13- heat exchangers
132- water at low temperature water side of 131- water at low temperature water inlet end 133- user's water supply end
134- user's backwater end 14- lets cool water pump 141- and lets cool unit fixed on water pump suction end
142- lets cool pump outlet
The regulating valves of DV1- the first regulating valve the second regulating valves of DV2- DV3- the 3rd
The regulating valves of the 4th the 5th regulating valve DV6- of regulating valve DV5- of DV4- the 6th
The regulating valves of the 7th the 8th regulating valve DV9- of regulating valve DV8- of DV7- the 9th
The regulating valves of the tenth the 11st regulating valve DV12- of regulating valve DV11- of DV10- the 12nd
The regulating valves of the 13rd the 14th regulating valve DV15- of regulating valve DV14- of DV13- the 15th
The regulating valves of the 16th the 17th regulating valve DV18- of regulating valve DV17- of DV16- the 18th
The regulating valves of the 19th the 20th regulating valve DV21- of regulating valve DV20- of DV19- the 21st
The regulating valves of the 22nd regulating valve DV23- of DV22- the 23rd
Embodiment
Further illustrate specific embodiment of the present utility model below in conjunction with the accompanying drawings.
It is readily appreciated that, according to the technical solution of the utility model, in the case where not changing the utility model in essence spirit, this area
Those skilled in the art the various structures mode and implementation that can mutually replace.Therefore, detailed description below and
Accompanying drawing is only the exemplary illustration to the technical solution of the utility model, and is not to be construed as whole of the present utility model or is considered as
Utility model technical scheme is defined or limited.
Mention in this manual or may mention up, down, left, right, before and after, front, the back side, top, bottom etc.
Orientation term is defined relative to the construction shown in each accompanying drawing, and they are relative concepts, and it is therefore possible to can root
Correspondingly changed according to its residing diverse location, different use states.So also should not be by these or others side
Position term is construed to restricted term.
As shown in figure 1, cold accumulation system, including cold-storage water pot 5 and handpiece Water Chilling Units, handpiece Water Chilling Units include evaporator 1, pressure successively
Contracting machine 2, condenser 3 and expansion valve 4, handpiece Water Chilling Units have two groups, and every group of handpiece Water Chilling Units also include subcooler 3a, subcooler 3a connections
Between condenser 3 and expansion valve 4, subcooler 3a includes subcooler water inlet pipe 3a1, subcooler outlet pipe 3a2, working medium feed tube
3a3 and working medium drain pipe 3a4, subcooler water inlet pipe 3a1 and subcooler outlet pipe 3a2 are connected with cold-storage water pot 5, working medium feed tube
3a3 is connected with condenser 3, and working medium drain pipe 3a4 is connected with expansion valve 4.
Wherein, evaporator 1 includes evaporator water inlet pipe 11 and evaporator outlet pipe 12, and evaporator water inlet pipe 11 passes through first
Regulating valve DV1 is connected with air-conditioning recovery end, and evaporator outlet pipe 12 is connected by the second regulating valve DV2 with air-conditioning water supply end.Steam
The evaporator outlet pipe 12 for sending out device 1 flows out cold water, is supplied water for air-conditioning water supply end, provides cold for air-conditioning, air-conditioning has utilized cold
Afterwards, cold water is changed into hot water, and hot water is flowed into evaporator water inlet pipe 11 from air-conditioning backwater end, into evaporator 1, in evaporator 1
In again pass by heat exchange and be changed into cold water.
One end of compressor 2 is connected with evaporator 1, and the other end is connected with condenser 3.
One end of condenser 3 is connected with compressor 2, and the other end is connected with subcooler 3a.Condenser 3 is also cold with cooling tower
But water water supply end connects with cooling water backwater end, and cooling water flows into condenser from cooling tower, for reducing the temperature of refrigeration working medium,
After cooling water heating, it is flow back into from cooling water backwater end in cooling tower.
Subcooler 3a includes subcooler water inlet pipe 3a1, subcooler outlet pipe 3a2, working medium feed tube 3a3 and working medium drain pipe
3a4, subcooler water inlet pipe 3a1 and subcooler outlet pipe 3a2 are connected with cold-storage water pot 5, and working medium feed tube 3a3 connects with condenser 3
Connect, working medium drain pipe 3a4 is connected with expansion valve 4.Refrigeration working medium after cooling enters subcooler 3a from working medium feed tube 3a3,
Further cool in subcooler 3a, then flowed out from working medium drain pipe 3a4, flow into evaporator 1 by expansion valve 4, cold is shifted
To evaporator 1.The cold of secondary water at low temperature of the cold that subcooler 3a further cools from cold-storage water pot.Specifically, secondary low temperature
Water flows into subcooler water inlet pipe 3a1 from cold-storage water pot 5, is heated up in subcooler 3a, obtains the heat of refrigeration working medium, temperature liter
Height, and outflowed back to from from subcooler outlet pipe 3a2 in cold-storage water pot 5.
Wherein, subcooler water inlet pipe 3a1 is connected by the 3rd regulating valve DV3 with the secondary water at low temperature water supply end of cold-storage water pot 5,
Subcooler outlet pipe 3a2 is connected by the 4th regulating valve DV4 with the secondary water at low temperature backwater end of cold-storage water pot 5.
One end of expansion valve 4 is connected with subcooler 3a, and the other end is connected with evaporator 1.
In the present embodiment, the secondary water at low temperature in cold-storage water pot 5 is incorporated into subcooler 3a, heat is obtained in subcooler 3a
Amount, flow back into cold-storage water pot 5 after heating, because the water temperature in cold-storage water pot 5 adds, improves the cold-storage of cold-storage water pot 5
Amount.On the other hand, subcooler 3a causes refrigeration working medium to continue to cool down in subcooler 3a, adds the refrigerating capacity of supercooling unit.
The present embodiment can increase the cold storage capacity of cold-storage water pot in the case where compressor horsepower is constant, and and can improves handpiece Water Chilling Units
Refrigerating capacity.
The handpiece Water Chilling Units use with subcooler in the present embodiment is connected in water cold storage occasion with cold-storage water pot, can also be made
Used in other occasions for carrying water at low temperature low-temperature receiver, the cold of low temperature situation can be changed into refrigerating capacity by subcooler.The present embodiment
In make use of in cold-storage water pot the cold of time water at low temperature, be converted into refrigerating capacity, while also improve the cold storage capacity of cold-storage water pot.
As shown in figure 1, further, cold-storage water pot 5 includes upper water distributor 51 and lower water-dispensing device 52.
Wherein, the 9th regulating valve DV9 is provided with the upper water distributor outlet pipe 511 of upper water distributor 51, lower water-dispensing device 52
The tenth regulating valve DV10 is provided with lower water-dispensing device return duct 521.
The 9th regulating valve DV9, the 14th regulating valve are provided between upper water distributor 51 and first group of subcooler outlet pipe 3a2
DV14 and the 4th regulating valve DV4.
The 9th regulating valve DV9, the 14th regulating valve are provided between upper water distributor 51 and second group of subcooler outlet pipe 3a2
DV14 and the 8th regulating valve DV8.
The 9th regulating valve DV9, the 11st regulating valve are provided between upper water distributor 51 and first group of subcooler water inlet pipe 3a1
DV11, the 17th regulating valve DV17, supercooling water pump 7 and the 3rd regulating valve DV3.
The 9th regulating valve DV9, the 11st regulating valve are provided between upper water distributor 51 and second group of subcooler water inlet pipe 3a1
DV11, the 17th regulating valve DV17, supercooling water pump 7 and the 7th regulating valve DV7.
The tenth regulating valve DV10, the 13rd regulation are provided between lower water-dispensing device 51 and first group of subcooler water inlet pipe 3a1
Valve DV13, supercooling water pump 7 and the 3rd regulating valve DV3.
The tenth regulating valve DV10, the 13rd regulation are provided between lower water-dispensing device 51 and second group of subcooler water inlet pipe 3a1
Valve DV13, supercooling water pump 7 and the 7th regulating valve DV7.
Further, evaporator 1 includes evaporator water inlet pipe 11 and evaporator outlet pipe 12, and evaporator outlet pipe 12 is with
Water-locator 52 connects, and evaporator water inlet pipe 11 connects with upper water distributor 51.
Wherein, cold-storage water pump 6 is additionally provided between evaporator water inlet pipe 11 and upper water distributor 51, cold-storage water pump 6 includes cold-storage
Pump water inlet 61 and cold-storage pumping line 62, are additionally provided with the 18th regulating valve between cold-storage water pump 6 and upper water distributor 51
DV18, the 11st regulating valve DV11 and the 9th regulating valve DV9.
The first regulating valve DV1 is provided between first group of evaporator water inlet pipe 11 and cold-storage water pump 6.The evaporation of second component
The 5th regulating valve DV5 is provided between device water inlet pipe 11 and cold-storage water pump 6.
The second regulating valve DV2, the 16th regulation are additionally provided between first group of evaporator outlet pipe 12 and lower water-dispensing device 52
Valve DV16, the 12nd regulating valve DV12 and the tenth regulating valve DV10.
The 6th regulating valve DV6, the 12nd regulation are additionally provided between second group of evaporator outlet pipe 12 and lower water-dispensing device 52
Valve DV12 and the tenth regulating valve DV10.
Further, cold accumulation system 5 also includes user terminal, and user terminal includes water supply end and backwater end, water supply end and evaporation
Device outlet pipe 12 connects, and backwater end connects with evaporator water inlet pipe 11.
Specifically, as shown in figure 1, user terminal is air-conditioning in the present embodiment, including divide water vat 9 and water collection tank 8, divide water vat 9
For water supply end, supplied water for air conditioner user；Water collection tank 8 is backwater end, and the backwater of air conditioner user flows into water collection tank 8.Evaporator water outlet
The cold water of pipe 12 divides water vat 9 from dividing water vat water inlet pipe 91 to flow into, and the rise of the cold water temperature that has used is changed into backwater, and backwater is from catchmenting
The water collection tank outlet pipe 81 of cylinder 8 is flowed into evaporator water inlet pipe 11.
Alternatively, what air conditioner user end can also be production low-temperature cooling water uses water end (W.E.).
Further, cold accumulation system 5 also includes heat exchanger 13, and heat exchanger 13 further comprises water at low temperature water inlet end
131st, secondary water at low temperature water side 132, user's water supply end 133 and user's backwater end 134, water at low temperature water inlet end 131 and lower water-dispensing device
52 connections, secondary water at low temperature water side 132 connect with upper water distributor 51, and user's water supply end 133 connects with water supply end, user's backwater end
134 connect with backwater end.
Water pump 14, the 23rd regulating valve are let cool specifically, being provided between water at low temperature water inlet end 131 and lower water-dispensing device 52
DV23, the tenth regulating valve DV10.
The 22nd regulating valve DV22, the 11st regulating valve are provided between secondary water at low temperature water side 132 and upper water distributor 51
DV11 and the 9th regulating valve DV9.
User's water supply end 133 and divide between water vat 9 and be provided with the 21st regulating valve DV21.
The 20th regulating valve DV20 and cooling water pump 10 are provided between user's backwater end 134 and water collection tank 8.
Referring to Fig. 2, structural representation when Fig. 2 is the independent cooling of cold accumulation system in the embodiment of the utility model one.
During the independent cooling of handpiece Water Chilling Units, lower water-dispensing device 52 connects with subcooler water inlet pipe 3a1, upper water distributor 51 and subcooler
Outlet pipe 3a2 is connected.Specifically include：
The independent cooling process of first group of handpiece Water Chilling Units：Water collection tank outlet pipe 81 of the air-conditioning backwater through water collection tank 8, pass through cooling
Water pump 10, the 19th regulating valve DV19, the first regulating valve DV1, evaporator water inlet pipe 11 flow into evaporator 1 and carry out heat exchange, lose
Quantitative change reduce phlegm and internal heat into cooling water at low temperature, outflow evaporator outlet pipe 12, by, the second regulating valve DV2 and the 16th regulating valve DV16,
Divide water vat water inlet pipe 91 to enter and divide water vat 9, used for air conditioner user.
The independent cooling process of second group of handpiece Water Chilling Units：Water collection tank outlet pipe 81 of the air-conditioning backwater through water collection tank 8, pass through cooling
Water pump 10, the 19th regulating valve DV19, the 5th regulating valve DV5, evaporator water inlet pipe 11 flow into evaporator 1 and carry out heat exchange, lose
Quantitative change reduce phlegm and internal heat into cooling water at low temperature, evaporator outlet pipe 12 is flowed out, by the 6th regulating valve DV6, dividing water vat water inlet pipe 91 to enter
Divide water vat 9, used for air conditioner user.
Subcooling process of the secondary water at low temperature in first group of subcooler：Secondary water at low temperature after being let cool in cold-storage water pot 5, warp
Lower water-dispensing device 52, the tenth regulating valve DV10, the 13rd regulating valve DV13, entered by the way that pump 7, the 3rd regulating valve DV3, subcooler is subcooled
Water pipe 3a1, into subcooler 3a, temperature raises after obtaining heat, by subcooler outlet pipe 3a2, the 4th regulating valve DV4, the
14 regulating valve DV14, the 9th regulating valve DV9, upper water distributor outlet pipe 511 enter cold-storage water pot 5.
Subcooling process of the secondary water at low temperature in second group of subcooler：Secondary water at low temperature after being let cool in cold-storage water pot 5, warp
Lower water-dispensing device 52, the tenth regulating valve DV10, the 13rd regulating valve DV13, entered by the way that pump 7, the 7th regulating valve DV7, subcooler is subcooled
Water pipe 3a1, into subcooler 3a, temperature raises after obtaining heat, by subcooler outlet pipe 3a2, the 8th regulating valve DV8, the
14 regulating valve DV14, the 9th regulating valve DV9, upper water distributor outlet pipe 511 enter cold-storage water pot 5.
During independent cooling, two groups of subcooler 3a are in parallel, and two groups of evaporators 1 are also in parallel.
Cold-storage water pot 5 is time water at low temperature under normal circumstances, in upper water distributor 51, and water temperature is about 14 DEG C, lower water-dispensing device 52
In be water at low temperature, water temperature is about 4 DEG C.When cold-storage water pot 5 is let cool, the water at low temperature outflow in lower water-dispensing device 52.When having let cool
Bi Hou, only time water at low temperature in cold-storage water pot 5, because this water at low temperature now flows out from lower water-dispensing device 52, for for subcooler
3a provides cold.
The situation of the independent cooling of handpiece Water Chilling Units, the flat section typically after peak of power consumption, or cold-storage during peak of power consumption
When the cold of water pot is finished, it can utilize and the independent cooling of unit is subcooled.Electricity price highest during peak of power consumption, electricity price during low power consumption
Minimum, electricity price during flat section is moderate.Therefore, typically in low power consumption, cold-storage is carried out to cold-storage water pot, cold is stored
Come.Until peak of power consumption, cold-storage water pot is let cool, and can consume minimum electricity, cost-effective.During flat section, then cold water is utilized
Unit carrys out cooling.So as to reach power network " peak load shifting ", the win-win situation of user's power cost saving.
The present embodiment under conditions of handpiece Water Chilling Units power consumption is not increased, can improve the refrigerating capacity of handpiece Water Chilling Units.Meanwhile
Improve the cold storage capacity of cold-storage water pot.
Referring to Fig. 3, structural representation when Fig. 3 is the independent cold-storage of cold accumulation system in the embodiment of the utility model one.
During cold-storage 5 independent cold-storage of water pot, subcooler water inlet pipe 3a1 and subcooler outlet pipe 3a2 connect with upper water distributor 51
It is logical.Specifically include：
The independent process of cool of cold-storage water pot：Secondary water at low temperature in cold-storage water pot 5 through upper water distributor 51, the 9th regulating valve DV9,
11st regulating valve DV11, the 18th regulating valve DV18, by cold-storage water pump 6, the first regulating valve DV1, into first group of steaming
Device 1 is sent out, first group of evaporator outlet pipe 12 is flowed out after cooling, through the second regulating valve DV2, the 15th regulating valve DV15 and the 5th
Regulating valve DV5 enters in second group of evaporator water inlet pipe 11, after cooling again, by the 6th regulating valve DV6, the 12nd regulation
Valve DV12, the tenth regulating valve DV10, lower water-dispensing device 52 enter cold-storage water pot 5.
Now, two groups of evaporators 1 are series connection, and series connection cold-storage can reduce the power consumption of first order handpiece Water Chilling Units.Secondary low temperature
Subcooling process of the water in subcooler：Secondary water at low temperature in cold-storage water pot 5 is through upper water distributor 51, the 9th regulating valve DV9, the 11st
Regulating valve DV11, the 17th regulating valve DV17, by the way that pump 7, the 3rd regulating valve DV3 (or the 7th regulating valve DV7), subcooler is subcooled
Water inlet pipe 3a1 enters subcooler 3a, and temperature raises after obtaining heat, by the 4th regulating valve DV4 (or the 8th regulating valve DV8),
14th regulating valve DV14, mixed together with the secondary water at low temperature of outflow in the cold-storage water pot 5 in cold-storage water pot return duct 511
Close, a mixing water part carries out next round charge cycle through cold-storage water pump 6, and mixing water another part is carried out down by water supply pump 7
One took turns SAPMAC method.
Now, two groups of subcoolers are parallel connection.
Further, the flow of cold-storage water pump 6 is computed determining with lift according to cold storage capacity and the cold-storage temperature difference.
Further, the flow that water pump 7 is subcooled is computed determining according to supercooling temperature with lift with crossing cold flow.
The present embodiment can improve the cold storage capacity of cold-storage tank, and the refrigerating capacity of increase cold-storage handpiece Water Chilling Units and reduce the
One-level cold-storage handpiece Water Chilling Units power consumption.The independent cold-storage of cold-storage water pot is typically what is carried out in the case of electricity consumption ebb.
Referring to Fig. 4, Fig. 4 is structural representation when cold accumulation system is individually let cool in the embodiment of the utility model one.
The independent discharging cold course of cold-storage water pot：Water at low temperature in cold-storage water pot 5 through lower water-dispensing device 52, the tenth regulating valve DV10,
23rd regulating valve DV23, by letting cool water pump 14, from the inflow heat exchanger 13 of heat exchanger water at low temperature water inlet end 131, it is low
Warm water is changed into time water at low temperature after heat exchange, is flowed out from secondary water at low temperature water side 132, through the 22nd regulating valve DV22, the
11 regulating valve DV11, the 9th regulating valve DV9, upper water distributor 51 enter in cold-storage water pot 5.
The opposite side of heat exchanger 13, water collection tank outlet pipe 81 of the air-conditioning backwater through water collection tank 8, cooling water pump 10, second
Ten regulating valve DV20, from the inflow heat exchanger 13 of user's backwater end 134, air-conditioning backwater after the cooling of over-heat-exchanger 13, from
Family water supply end 133 is flowed out, and through the 21st regulating valve DV21, divides water vat water inlet pipe 91 to make into water vat 9 is divided for air conditioner user
With.
Cold-storage water pot individually lets cool what is carried out typically in the case of peak of power consumption.
Referring to Fig. 5, Fig. 5 is cold accumulation system cooling and structural representation when letting cool simultaneously in the embodiment of the utility model one
Figure.
Cold-storage water pot 5 is let cool, while during handpiece Water Chilling Units cooling, subcooler water inlet pipe 3a1 connects with time water at low temperature water side 132
Logical, subcooler outlet pipe 3a2 connects with upper water distributor 51.
Cold accumulation system while cooling and discharging cold course：Air-conditioning backwater concentrates on water collection tank 8, by water collection tank outlet 81,
Pass through cooling water pump 10, the 19th regulating valve DV19, the first regulating valve DV1 (or the 5th regulating valve DV5), evaporator water inlet pipe
11, flow into evaporator 1 and carry out heat exchange, lose heat and become water at low temperature, by evaporator outlet pipe 12, the second regulating valve DV2
With the 16th regulating valve DV16 (or the 6th regulating valve DV6), divide water vat water inlet pipe 91 enter divide water vat 9, for air conditioner user use.
Now, two groups of evaporators 1 are parallel connection.
Further, air-conditioning backwater flows into heat by cooling water pump 10, the 20th regulating valve DV20 from user's backwater end 134
Exchanger 13, air-conditioning backwater carry out heat exchange in heat exchanger 13, and temperature flows out after reducing from user's water supply end 133, through second
11 regulating valve DV21, the cold water mix with being flowed out through the regulating valve DV16 of evaporator outlet pipe 12 and the 16th, enter from water knockout drum
Water end (W.E.) 91 enters and divides water vat 9, is used for air conditioner user.
Further, the water at low temperature in cold-storage water pot 5 is through lower water-dispensing device 52, the tenth regulating valve DV10, the 23rd regulation
Valve DV23, by letting cool water pump 14, from the inflow heat exchanger 13 of water at low temperature water inlet end 131, water at low temperature is after heat exchange from secondary
Water at low temperature water side 132 is flowed out, through the 22nd regulating valve DV22, the 11st regulating valve DV11, the 9th regulating valve DV9, upper cloth
Hydrophone 51 enters in cold-storage water pot 5.
Further, the secondary water at low temperature flowed out from the secondary water at low temperature water side 132 of heat exchanger 13, through the 22nd regulation
Valve DV22, the 17th regulating valve DV17, by be subcooled pump 7, the 3rd regulating valve DV3 (or the 7th regulating valve DV7), subcooler intake
Pipe 3a1, after subcooler 3a obtains thermal temperature rise, by the 4th regulating valve DV4 (or the 8th regulating valve DV8), the 14th
The secondary water at low temperature that the secondary water at low temperature water side 132 of regulating valve DV14 and heat exchanger 13 is flowed out is at upper water distributor outlet pipe 511
Mixing, entering cold-storage water pot 5 through the 9th regulating valve DV9, upper water distributor 51, (the secondary low temperature water-carrying capacity of heat exchanger 13 is more than cold water
During the subcooler 3a of unit flow).Or a part enters cold-storage water pot 5 through the 9th regulating valve DV9, upper water distributor 51, separately
A part mixes through the 11st regulating valve DV11 with the secondary water at low temperature that the secondary water at low temperature water side 132 of heat exchanger 13 is flowed out, and passes through
17th regulating valve DV17, supercooling water pump 7, (the secondary low temperature water-carrying capacity of heat exchanger 13 is less than for supply subcooler 3a reuses
In the case of handpiece Water Chilling Units subcooler 3a flow).
Now, two groups of subcoolers are parallel connection.
On the one hand the present embodiment under conditions of handpiece Water Chilling Units power consumption is not increased, can improve the refrigeration of handpiece Water Chilling Units
Amount；On the other hand the temperature of the cooling water from subcooler 3a outflows is improved, adds the cold storage capacity of cold-storage water pot 5.
Cold accumulation system cooling and lets cool what is typically carried out in flat section simultaneously.
Referring to Fig. 6, Fig. 6 is cold accumulation system cold-storage and structural representation when letting cool simultaneously in the embodiment of the utility model one
Figure.
The cold-storage and when letting cool simultaneously of cold-storage water pot 5, subcooler water inlet pipe 3a1 and subcooler outlet pipe 3a2 with upper water distribution
Device 51 connects.
Cold accumulation system while cold-storage and discharging cold course：Secondary water at low temperature in cold-storage water pot 5 is adjusted through upper water distributor the 51, the 9th
Valve 9, the 11st regulating valve DV11, the 18th regulating valve DV18, by cold-storage water pump 6, the first regulating valve DV1 into first group
Evaporator 1, enter second group of evaporator 1 through regulating valve 2, regulating valve 15, regulating valve 5 after cooling, further after cooling by
Second regulating valve DV2, the 16th regulating valve DV16, the 12nd regulating valve DV12, the tenth regulating valve DV10, lower water-dispensing device 52 enter
Cold-storage water pot 5.
Now, two groups of evaporators are series connection.
Further, the secondary water at low temperature in cold-storage water pot 5 is through upper water distributor 51, the 9th regulating valve DV9, the 11st regulating valve
DV11, the 17th regulating valve DV17, intake by the way that pump 7, the 3rd regulating valve DV 3 (or the 7th regulating valve DV7), subcooler is subcooled
Pipe 3a1 enters subcooler 3a, and temperature raises after obtaining heat, by the 4th regulating valve DV4 (or the 8th regulating valve DV8), the tenth
Four regulating valve DV14, the secondary water at low temperature with the cold-storage water pot 5 outflow, are mixed, mixing water one in cold-storage water pot return duct 511
Part carries out next round charge cycle through cold-storage water pump 6, and mixing water another part carries out next round supercooling by water supply pump 7 and followed
Ring.
Now, two groups of subcoolers are parallel connection.
Further, the water at low temperature in cold-storage water pot 5 is through lower water-dispensing device 52, the tenth regulating valve DV10, the 23rd regulation
Valve DV23, by letting cool water pump 14, from the inflow heat exchanger 13 of heat exchanger water at low temperature water inlet end 131, water at low temperature is handed over through overheat
The secondary water at low temperature being changed into after changing, flowed out from secondary water at low temperature water side 132, after the 22nd regulating valve DV22, a part is through the
18 regulating valve DV18, charge cycle entered by cold-storage water pump 6；A part passes through subcooled water through the 17th regulating valve DV17
Pump 7 entered SAPMAC method；Remainder enters cold-storage water through the 11st regulating valve DV11, the 9th regulating valve DV9, upper water distributor 51
In tank 5.
Cold accumulation system simultaneously cold-storage and discharging cold course, because cold storage capacity, let cool with cross cold change, can cold-storage water pot,
Cold-storage water pump, let cool water pump, supercooling water pump and correlation regulating valve between produce many operating conditions, the utility model can root
It is controlled and adjusts according to actual demand.
Further, the flow of cold-storage water pump 6 is computed determining with lift according to cold storage capacity and the cold-storage temperature difference.
Further, the flow that water pump 7 is subcooled is computed determining according to supercooling temperature with lift with crossing cold flow.
Further, the flow for letting cool water pump 14 is computed determining according to the amount of letting cool with lift with letting cool temperature difference.
The present embodiment can improve the cold storage capacity of cold-storage tank, improve the refrigerating capacity of handpiece Water Chilling Units and reduce handpiece Water Chilling Units
Power consumption.
Cold accumulation system cold-storage and is let cool typically in electricity consumption ebb simultaneously, it is still necessary to is carried out in the case of using cold
's.Now cold-storage water pot one side cold-storage, while letting cool.In the utility model the handpiece Water Chilling Units of cold accumulation system can also be two groups with
On, determined according to the cooling needs of user terminal, if cooling needs are bigger, handpiece Water Chilling Units are more.
As shown in fig. 7, Fig. 7 is the flow chart of the control method of cold accumulation system in another embodiment of the utility model.
The control method of cold accumulation system, comprises the following steps：
Step S701：Secondary water at low temperature is entered in subcooler 3a from subcooler water inlet pipe 3a1；
Step S702：Temperature raises after secondary water at low temperature obtains heat in subcooler 3a, is flowed from subcooler outlet pipe 3a2
Go out；
Step S703：After refrigeration working medium condenses in condenser 3, enter subcooler 3a from working medium feed tube 3a3；
Step S704：Refrigeration working medium is lost in subcooler 3a after temperature reduces after heat, flows out working medium drain pipe 3a4；
Step S705：Refrigeration working medium after cooling flows into evaporator 1 by expansion valve 4.
Further, during the independent cooling of handpiece Water Chilling Units, secondary water at low temperature flows out from lower water-dispensing device 52, through subcooler water inlet pipe
3a1 enters subcooler 3a, and temperature raises after heat is obtained in subcooler 3a, then flow to upper water distribution from subcooler outlet pipe 3a2
Device 51.Further, during the independent cold-storage of cold-storage water pot, secondary water at low temperature flows out from upper water distributor 51, enters through subcooler water inlet pipe 3a1
Entering subcooler 3a, temperature raises after heat is obtained in subcooler 3a, then flow to upper water distributor 51 from subcooler outlet pipe 3a2,
Mixed with the secondary water at low temperature of outflow in cold-storage water pot 5, a mixing water part carries out next round charge cycle through cold-storage water pump 6, mixes
Heshui another part carries out next round by water supply pump 7 and crosses SAPMAC method.
Further, with when letting cool, secondary water at low temperature flows out cold-storage cold-storage water pot from upper water distributor 51, enters through subcooler simultaneously
Water pipe 3a1 enters subcooler 3a, and temperature raises after heat is obtained in subcooler 3a, then is flow to from subcooler outlet pipe 3a2
Water-locator 51.Further, cold-storage water pot is let cool, while during handpiece Water Chilling Units cooling, and secondary water at low temperature is from secondary water at low temperature water side 132
Outflow, enters subcooler 3a through subcooler water inlet pipe 3a1, and temperature rise after heat is obtained in subcooler 3a, then from subcooler
Outlet pipe 3a2 flow to upper water distributor 51.Further, cold accumulation system also includes user terminal, and user terminal includes water supply end and backwater
End, evaporator 1 include evaporator water inlet pipe 11 and evaporator outlet pipe 12, during handpiece Water Chilling Units cooling, the parallel connection of each group evaporator 1；
The water of backwater end is flowed into the evaporator water inlet pipe 11 of each group evaporator 1, after cooling, outflow each group evaporator 1
Evaporator outlet pipe 12；
Cold water in the evaporator outlet pipe 12 of each group evaporator 1 flows into water supply end.
Further, during cold-storage water pot cold-storage, each group evaporator 1 is connected；
The secondary water at low temperature of upper water distributor 51 flows into the evaporator water inlet pipe 11 of first group of evaporator 1, after secondary water at low temperature cooling,
Flowed out from the evaporator outlet pipe 12 of first group of evaporator 1, into the evaporator water inlet pipe 11 of second group of evaporator 1, then
After secondary cooling, flowed out from the evaporator outlet pipe 12 of second group of evaporator 1, the evaporator water outlet of the evaporator 1 of last group
Cold water in pipe 12 flows into lower water-dispensing device 52.
The utility model improves the accumulation of energy energy of cold-storage water pot, the secondary low temperature after cold-storage water pot has been let cool
Water, for the supercooling of handpiece Water Chilling Units refrigeration working medium, obtain the heat of refrigeration working medium and temperature raises, improve the storage of cold-storage water pot
Cold energy power.
The utility model utilizes the reverse Carnot cycle principle of refrigeration working medium, and the condensed refrigeration working medium of condenser is entered into one
Step cooling, the temperature of refrigeration working medium is less than the condensation temperature (degree of supercooling) of working medium, and this part cold is directly changed into cold
The refrigerating capacity of water dispenser group, improve the refrigerating capacity of handpiece Water Chilling Units.
The utility model realizes the peak load shifting of handpiece Water Chilling Units electricity consumption；Add the cold storage capacity and cooling-water machine of cold-storage water pot
The refrigerating capacity of group, reduce the power consumption of handpiece Water Chilling Units；Save the operating cost of cooling process.
Above-described is only principle and preferred embodiment of the present utility model.It should be pointed out that for the general of this area
For logical technical staff, on the basis of the utility model principle, some other modifications can also be made, also should be regarded as this practicality
New protection domain.
Claims (10)
1. a kind of cold accumulation system, including cold-storage water pot and handpiece Water Chilling Units, the handpiece Water Chilling Units include successively evaporator, compressor,
Condenser and expansion valve, it is characterised in that the handpiece Water Chilling Units have at least two groups, and the handpiece Water Chilling Units also include subcooler, institute
State subcooler to be connected between the condenser and the expansion valve, the subcooler includes subcooler water inlet pipe, subcooler goes out
Water pipe, working medium feed tube and working medium drain pipe, the subcooler water inlet pipe and the subcooler outlet pipe and the cold-storage water pot
Connection, the working medium feed tube are connected with the condenser, and the working medium drain pipe is connected with the expansion valve.
2. cold accumulation system according to claim 1, it is characterised in that the cold-storage water pot includes upper water distributor and lower water distribution
Device, during the independent cooling of the handpiece Water Chilling Units, the lower water-dispensing device connects with the subcooler water inlet pipe, the upper water distributor and institute
State the connection of subcooler outlet pipe.
3. cold accumulation system according to claim 1, it is characterised in that the cold-storage water pot includes upper water distributor and lower water distribution
Device, during the independent cold-storage of the cold-storage water pot, the subcooler water inlet pipe and subcooler outlet pipe connect with the upper water distributor.
4. cold accumulation system according to claim 1, it is characterised in that the cold-storage water pot includes upper water distributor and lower water distribution
Device, cold-storage water pot cold-storage and when letting cool simultaneously, the subcooler water inlet pipe and subcooler outlet pipe with the upper water distribution
Device connects.
5. cold accumulation system according to claim 1, it is characterised in that the cold-storage water pot includes upper water distributor and lower water distribution
Device, the evaporator include evaporator water inlet pipe and evaporator outlet pipe, and the evaporator outlet pipe connects with the lower water-dispensing device
Logical, the evaporator water inlet pipe connects with the upper water distributor.
6. cold accumulation system according to claim 5, it is characterised in that the cold accumulation system also includes user terminal, the use
Family end includes water supply end and backwater end, and the water supply end connects with the evaporator outlet pipe, the backwater end and the evaporation
Device water inlet pipe connects.
7. cold accumulation system according to claim 6, it is characterised in that the cold accumulation system also includes heat exchanger, described
Heat exchanger further comprises water at low temperature water inlet end, secondary water at low temperature water side, user's water supply end and user's backwater end, the low temperature
Water water inlet end connects with the lower water-dispensing device, and the secondary water at low temperature water side connects with the upper water distributor, and the user supplies water
End connects with the water supply end, and user's backwater end connects with the backwater end.
8. cold accumulation system according to claim 7, it is characterised in that the cold-storage water pot is let cool, while the cooling-water machine
During group cooling, the subcooler water inlet pipe connects with the secondary water at low temperature water side, the subcooler outlet pipe and the upper cloth
Hydrophone connects.
9. cold accumulation system according to claim 1, it is characterised in that during the handpiece Water Chilling Units cooling, supercooling described in each group
Device is in parallel, and evaporator described in each group is in parallel.
10. cold accumulation system according to claim 1, it is characterised in that during the cold-storage water pot cold-storage, supercooling described in each group
Device is in parallel, evaporator series described in each group.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107014017A (en) * | 2017-05-19 | 2017-08-04 | 深圳佩尔优科技有限公司 | Cold accumulation system and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107014017A (en) * | 2017-05-19 | 2017-08-04 | 深圳佩尔优科技有限公司 | Cold accumulation system and control method |
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