CN101532709A - Ice-storage refrigeration device and ice-storage refrigeration system - Google Patents
Ice-storage refrigeration device and ice-storage refrigeration system Download PDFInfo
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- CN101532709A CN101532709A CN200810085035A CN200810085035A CN101532709A CN 101532709 A CN101532709 A CN 101532709A CN 200810085035 A CN200810085035 A CN 200810085035A CN 200810085035 A CN200810085035 A CN 200810085035A CN 101532709 A CN101532709 A CN 101532709A
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Abstract
The invention provides an ice-storage refrigeration device and an ice-storage refrigeration system, belongs to the air conditioning refrigeration technology and mainly solves the technical problem that the existing energy-storage air conditioning system has low energy efficiency and the like. The ice-storage refrigeration device comprises shells; a sealing body with a chamber inside consists of the shells; and the chamber is internally provided with a heat-exchanging pipe coil. The ice-storage refrigeration system consists of an ice-storage system and an ice-melting and cold-releasing system. The invention applies a principle of icing inside pipes, melting ices and ice-storing by spraying and cooling outside the pipe, needs no secondary heat-exchanging devices, greatly reduces the initial investment, has high system energy efficiency, low running expense, quick coldness storage, quick coldness taking speed, good heat exchange effect, reduces the energy consumption of the refrigeration mainframe by about 6% and can be widely applied to the air conditioning refrigeration systems.
Description
Technical field
The present invention relates to the air conditioner refrigerating technology, be a kind of ice-reserving refrigeration system with the ice-reserving refrigerating plant in the air-conditioning system and this device of use.
Background technology
At present, domestic and international ice storage system commonly used in air-conditioning equipment is the relative position in system according to refrigeration unit and ice storage unit, roughly is divided into series connection and two kinds of systems in parallel.These two kinds of ice storage systems are all realized by two times heat changing device is set, and rise thereby cause air-conditioning system to get cold temperature, have both increased the energy loss that produces because of heat exchange, have increased the initial cost of system simultaneously again; Secondly, compare conventional air-conditioning system (the evaporimeter leaving water temperature is 7 ℃), the leaving water temperature of refrigerating medium side lower (should be generally speaking about 5 ℃) in its two times heat changing device, the ice-reserving main frame power consumption that causes because of heat transfer temperature difference strengthens, and generally increases about 6%; In addition, because of setting up of two times heat changing device in the system, the rated lift of refrigerating medium circulating pump and terminal air-conditioner circulating water pump is increased, in running, certainly will increase system's power consumption, and by day under the operating mode, the continuous unlatching of refrigerating medium circulating pump makes the economy of system's operation reduce greatly.
According to the classification of ice storage unit, both at home and abroad comparatively common ice storage unit has that coiled freezes outward, encapsulation ice, borneol landing formula, ice crystal formula etc. are several.Borneol landing formula, ice crystal formula ice storage unit are dynamic ice-making, though improved the efficient of freezing with ice-melt, have reduced energy consumption, and higher because of initial cost, auxiliary device is more, and the machine room clear height is had relatively high expectations, and is limited in actual application.In present cold-storage engineering, use more widely ice storage unit and be freeze outside the coiled, encapsulation ice (ice hockey) two kinds, these two kinds of ice storage units all once freeze to finish because of ice-reserving layer or ice hockey, are called static ice making.But there is following defective in actual use in these two kinds of devices:
1, ice melting system in coiled freezes outward: when ice sheet melted from inside to outside, owing to form thin water layer between coil surface and ice sheet, its thermal conductivity factor only was about 25% of ice, and the heat exchange thermal resistance is bigger in the deicing processes, has influenced the cooling rate rate of getting; In actual use, often adopt thin ice sheet, make it obtain ice-reserving effect preferably in the short period of time, thereby limited its ice-reserving amount to a certain extent.Secondly, the setting of two times heat changing device has reduced heat exchange efficiency.In addition, because of cooling temperature roughly is distributed in about 5 ℃-9 ℃, be not suitable for being applied in the cold air distribution air-conditioning system.
2, the coiled outer ice melting system that freezes outward: put coldly for making system can reach quick ice-melt, the interior water of Ice Storage Tank should be not more than 50% with the space of ice than (ice-storage rate IPF), and the Ice Storage Tank volume that is adopted is bigger; Secondly, outer ice melting system is because of the irrationality of sidepiece cold water turnover ice groove, is easy to generate the current dead angle and causes the current short circuit or dam, thereby can make local ice sheet and the floating ice layer that never melts that form of ice groove, reduced the heat exchange effect.In actual engineering, even for ice-melt, compressed air hose is set stirring in the coil pipe bottom, can make the water in the ice groove be faintly acid but send into air for a long time, coil pipe there is certain corrosiveness, thereby influence operation and reduction service life of device.In addition, relevant with compressed air hose and work a large amount of auxiliary device has a strong impact on security and the reliability that system moves.
3, encapsulation ice ice storage system: similar with the icing outward interior ice melting system of coiled, it is long that cool time is got by this system, increase gradually along with getting cool time prolongation thermal resistance during ice-melt, getting the cooling rate rate reduces, do not meet the Building Heat burden requirement, must adopt the complicated control system effect that just can be well used.Secondly, need lower temperature and bigger refrigerating medium flow could obtain ice-reserving effect preferably in the short period of time, thereby that system's initial cost is increased is a lot of because of the increase of refrigerating medium filling quantity simultaneously, and, ice trough inner water stream is organized bad, easily forms the current dead angle, causes ice in thousand; In addition, the setting of two times heat changing device has reduced heat exchange efficiency; Simultaneously, because of cooling temperature roughly is distributed in about 5 ℃-9 ℃, also be not suitable for being applied in the cold air distribution air-conditioning system.
Summary of the invention
The initial cost that the present invention mainly solves present energy-storage air conditioner system because auxiliary device is many, refrigerating medium circulation consumption is big, the ice groove is big etc. brought is bigger, operating cost is higher, system energy efficiency technical problems such as lower (heat exchange loss big, high-lift refrigerating medium circulating pump run without interruption etc.), and then a kind of inner ice-reserving refrigerating plant is provided.
Bring technical problems such as operating cost is higher, system energy efficiency is lower owing to there are above-mentioned many defectives in the Ice Storage Tank that is adopted in the existing ice-reserving refrigeration system of otherwise address of the present invention, and then a kind of ice-reserving refrigeration system of using above-mentioned ice-reserving refrigerating plant is provided.
Ice-reserving refrigerating plant of the present invention, comprise have waterproof, the shell of protection against the tide and heat-insulating property, constitute the obturator that inside has cavity volume by this shell, in cavity volume, be provided with heat exchange coil, this heat exchange coil be used for liquid in pipe with the pipe heat exchange of outer cavity volume cold-producing medium ice-reserving and get cold by the mobile of liquid in pipe; The import and export end of heat exchange coil is connected in the chilled water import and chilled water outlet that is positioned on the shell; On shell, be provided with the outlet of refrigerating medium import and refrigerating medium, refrigerating medium by the refrigerating medium import enter in the cavity volume with its in heat exchange coil in medium carry out heat exchange and make it form ice sheet, flow out by the refrigerating medium outlet again.
Above-mentioned refrigerating medium import is connected with the fountain distributor, and this fountain distributor is used for that refrigerating medium is sprayed to liquid in heat exchange coil appearance and the heat exchange coil to carry out heat exchange so that its cooling is build-up ice lamination is held at heat exchange coil.
Above-mentioned fountain distributor is by being evenly arranged on the same horizontal level one by one and the pipe that is interconnected is formed, and the bottom of every pipe has densely covered spray apertures.
Above-mentioned heat exchange coil is evenly distributed in shared area of space, and its structure can be combination of snake type or screw type combination.
Above-mentioned shell is a sandwich construction, includes housing, damp-proof layer, heat-insulation layer, water-resistant liner from outside to inside at least.
Above-mentioned heat exchange coil go to the bottom and shell at the bottom of the certain altitude of can being separated by between the table, the space that this height limited constitutes liquid storage pool, described refrigerating medium outlet is positioned at bottom the liquid storage pool.
A kind of ice-reserving refrigeration system of using the ice-reserving refrigerating plant that above-mentioned arbitrary technical scheme limits is released cooling system by ice storage system and ice-melt and is formed; This ice storage system comprises: refrigeration unit, refrigerating medium circulating pump, the port of export of this refrigeration unit links to each other with refrigerating medium import or fountain distributor in the above-mentioned ice-reserving refrigerating plant, and the refrigerating medium outlet at the liquid storage pool place, bottom in the above-mentioned ice-reserving refrigerating plant is connected to the arrival end of refrigeration unit by refrigerating medium circulating pump; Ice-melt is released cooling system and is comprised: heat exchange coil, air conditioning terminal circulating pump and air conditioning terminal part in the above-mentioned ice-reserving refrigerating plant, the air-conditioning backwater outlet of the import of heat exchange coil and air conditioning terminal part is joined in the above-mentioned ice-reserving refrigerating plant, and the outlet of the heat exchange coil in the above-mentioned ice-reserving refrigerating plant is joined by the air-conditioning backwater inlet of air conditioning terminal circulating pump and air conditioning terminal part.
Above-mentioned ice storage system also includes self-con-tained unit and ice-reserving quantity sensor, detects the icing degree of heat exchange coil inwall and feeds back to self-con-tained unit and then the work of control refrigeration unit by the ice-reserving quantity sensor.
The refrigeration unit of said system also can be selected the refrigeration unit of double evaporators for use, wherein, passes to refrigerating medium in the evaporimeter and circulates, and circulates as medium with water in another evaporimeter.
Principle icing in the pipe, that the ice-melt connecting pipe sprays the cooling ice-reserving outward that the present invention uses proposes a kind of simple and effective novel ice-reserving refrigerating plant and ice-reserving refrigeration system.It has the following advantages:
1, initial cost reduces.The ice-reserving refrigerating plant that the present invention adopts is to adopt to freeze in the pipe and ice-melt and connecting pipe spray cooling ice-reserving principle outward, has reduced initial investment widely.
(1), auxiliary device is few: no secondary heat exchange equipment; And because cooling water directly contacts with ice sheet, and its leaving water temperature is low, can be applicable in the low-temperature air conditioner, reduce relevant air conditioner end equipment, thereby investment is reduced greatly.
(2), refrigerating medium circulation consumption is few: adopted the special spray circulatory system, under the prerequisite that guarantees the heat exchange effect, made the refrigerating medium filling quantity reduce greatly, thereby reduced relevant operating cost.
(3), the investment of the agent structure of ice storage unit reduces.Freeze owing to adopt in the coil pipe, so ice-storage rate IPF improves greatly, original Ice Storage Tank is directly replaced by coil pipe, thereby reduces the Ice Storage Tank volume greatly; Secondly, because of the minimizing of refrigerating medium filling quantity, greatly reduce the bearing capacity of the agent structure of ice storage unit.
(4), from the whole system structure, ice storage unit is arranged compact and is made things convenient for field fabrication, need not just can realize fully automatic operation through complicated control system.
2, system energy efficiency height, operating cost are low.
(1), the evaporating temperature of refrigeration system increases.The setting of conventional system two times heat changing device will make the air conditioning terminal system get cold temperature maintenance at 7 ℃, and the evaporating temperature that must reduce refrigeration system obtains; And the air conditioning terminal freeze cycle water that the present invention proposes directly enters and gets cold heat exchange in the coil pipe ice-reserving layer, makes the evaporating temperature of refrigeration system improve at least about 2 ℃ than conventional system, makes the refrigeration host computer energy consumption reduce about 6%.
(2), no two times heat changing device.Hollow of the present invention is recalled to water and is directly walked coil pipe inside, and promptly cold water is directly taken from the ice groove, so than conventional system relatively, saved two times heat changing device, has significantly reduced the process loss that brings because of heat exchange, has improved refrigerating efficiency.
(3), the refrigerating medium circulating pump lift reduces.The design selection of the refrigerating medium water pump of ice-reserving side makes ice-reserving side system resistance reduce greatly because of not considering the circulation resistance of two times heat changing device; And the particular design of the spray circulatory system among the present invention, make that the more conventional ice storage unit resistance of ice groove resistance is less, further reduced ice-reserving side system circulation resistance, make the lift of refrigerating medium circulating pump reduce greatly, power consumption certainly will reduce in the running.
(4), during the daytime ice-melt, need not to open coolant pump, reduce the day electric load.Conventional ice storage system is released under the cold operating mode in the daytime, must open refrigerating medium circulating pump.And among the present invention because of the chilled water heat exchange coil of directly flowing through, do not need to open the refrigerating medium water pump under the cold operating mode so release, reduced the running time of big lift circulating pump, make the economy of system's operation increase greatly.
(5), cold-storage is fast, get cold fast, good effect of heat exchange.Heat exchanger of the present invention is specifically designed as snake type or screw type coil pipe permutation and combination structure, ice-reserving, the equilibrium of ice-melt speed, and utilization rate is higher; Secondly, deicing processes hollow is recalled to water and directly contact with ice, good effect of heat exchange, get cold soon, and not inwardly the water layer that approaches of ice melting system generation influence the heat exchange effect; In addition, the spray circulatory system of particular design among the present invention has improved the heat exchange effect of heat exchanger widely.
(6), be applicable to cold air distribution.Supply water temperature from the ice groove can reach about 1 ℃, and for cold air distribution provides condition, cold air distribution makes flow system flow reduce greatly, makes systematic running cost decrease.
3, can make full use of electric power, can realize " peak load shifting " to electrical network.Native system can adopt the ice-reserving at night, and the refrigeration of ice-melt in the daytime helps promoting the coordinated development of the energy, economy and environment, has good social effect and economic benefit.
Description of drawings
Fig. 1 is an ice-reserving refrigerating plant partial schematic sectional view of the present invention.
Fig. 2 is an ice-reserving refrigeration system schematic diagram of the present invention.
Among the figure: 1, shell, 2, heat exchange coil, 3, bracing frame, 4, the chilled water import, 5, chilled water outlet, 6, the fountain distributor, 7, the refrigerating medium import, 8, the refrigerating medium outlet, 9, spray apertures, 10, liquid level gauge, 11, liquid storage pool, 12, refrigeration unit, 13, refrigerating medium circulating pump, 14, the air conditioning terminal circulating pump, 15, air conditioning terminal part, 16, control valve, 101, housing, 102, damp-proof layer, 103, heat-insulation layer, 104, water-resistant liner.
The specific embodiment
Referring to Fig. 1, this ice-reserving refrigerating plant comprise have waterproof, the shell 1 of protection against the tide and heat-insulating property, constitute the obturator that inside has cavity volume by this shell 1, this obturator is generally cuboid or cylinder, according to actual place such as machine room situation, also can adopt other rule or irregularly shaped; In cavity volume, be provided with heat exchange coil 2, this heat exchange coil 2 be used for liquid in pipe (being generally water) with the pipe heat exchange of outer cavity volume cold-producing medium ice-reserving and get cold by the mobile of liquid in pipe.This heat exchange coil 2 can be by being located at bracing frame 3 fixed installations in the cavity volume, and this bracing frame 3 can be positioned table in the shell; The import and export end of heat exchange coil is connected in the chilled water import 4 and chilled water outlet 5 that is positioned on the shell 1, and generally speaking, chilled water import 4 is positioned at the top or the upper lateral part of shell, and chilled water outlet is positioned at the bottom or the following side of shell.During refrigeration, start relevant power such as pump, medium (being generally water) enters the heat exchange coil of flowing through from the chilled water import, with institute's ice-reserving layer in the pipe get cold after, flow out from chilled water outlet, for user's air-conditioning system, constitute circulation.Be provided with refrigerating medium import 7 and refrigerating medium outlet 8 on shell, this refrigerating medium import and outlet generally lay respectively at the top and the bottom of shell, arrange but refrigerating medium import 7 exports 8 homonymies with refrigerating medium, but also heteropleural are arranged; Refrigerating medium by refrigerating medium import 7 enter in the cavity volume with heat exchange coil 2 in medium carry out heat exchange and make it form ice sheet, flow out by refrigerating medium outlet 8 again.During work, refrigerating medium can be driven by associated pump and link to each other with refrigeration unit, and carries out work to constitute circulation by relevant control setting.Its heat exchange coil can integral body be immersed in and carries out the heat exchange ice-reserving in the refrigerating medium, also can carry out the heat exchange ice-reserving by mode described below.
Above-mentioned refrigerating medium import 7 is connected with fountain distributor 6, and this fountain distributor 6 is used for that refrigerating medium is sprayed to liquid in heat exchange coil appearance and the heat exchange coil to carry out heat exchange so that its cooling is build-up ice lamination is held at heat exchange coil.This fountain distributor 6 can be positioned on the bracing frame 3 equally and be in the top of heat exchange coil in the cavity volume, the entrance point of fountain distributor 6 is connected in the refrigerating medium import 7 that is positioned on the shell 1, the heat exchange coil of refrigerant (refrigerating medium) below fountain distributor 6 sprays to it from the top down that orders about by refrigeration unit, make the water for cooling in its pipe form ice sheet (ice-reserving), flow back to refrigeration unit by the refrigerating medium outlet, constitute circulation.
Above-mentioned fountain distributor 6 is by being evenly arranged on the same horizontal level one by one and the pipe that is interconnected is formed, and the bottom of every pipe has densely covered spray apertures 9, makes refrigerating medium evenly spray to the heat exchange coil of its below, to improve ice making speed.
Above-mentioned heat exchange coil 2 is evenly distributed in shared area of space, its structure can be combination of snake type or screw type combination, promptly in layer arrange (flow direction of pressing medium in the heat exchange coil) from top to bottom, every layer is snake type structure or spiral-shaped structure, to guarantee that the medium in the heat exchange coil can carry out heat exchange effectively, it is stable and higher to make its medium get the cooling rate rate.Also can adopt following spread pattern: arrange from top to bottom, perhaps every two layers or more constitutes a row and is layered arrangement etc. by rows.
Above-mentioned shell 1 is a sandwich construction, includes housing 101, damp-proof layer 102, heat-insulation layer 103, water-resistant liner 104 from outside to inside at least; This shell not only has certain intensity, and guarantees that inner refrigerating medium not to exosmosis or excessive, has protection against the tide, insulation and water resistance; The material of damp-proof layer 102 and water-resistant liner 104 is styrene-butadiene block copolymer or polyethylene polypropylene polymer composite or EPDM waterproof material, and perhaps other has the material of similar functions.
As requested, above-mentioned heat exchange coil go to the bottom and shell at the bottom of the certain altitude of can being separated by between the table, the space that this height limited constitutes liquid storage pool, the cavity volume bottom that promptly shell constituted is liquid storage pool, refrigerating medium outlet 8 is positioned at bottom the liquid storage pool.Compile and return refrigeration unit for the ease of evaporating the refrigerating medium that falls after the heat exchange, described outer casing bottom can be designed to bucket shape or calixconcavity shape.
The above-mentioned liquid level gauge 10 that is equipped with on shell 1, this liquid level gauge 10 is in the liquid storage pool position and communicates with inner volume, to show the liquid level of refrigerating medium in the liquid storage pool.
The surface of above-mentioned shell 1 scribbles the anti-corrosion layer, as antirust paint etc. to prevent the appearance corrosion.
Ice-reserving refrigerating plant of the present invention can be transported to the building site installation by finished product, also can assemble at building-site.Convenient transportation, and can adopt standard component, assembling is fast.
Ice-reserving refrigerating plant of the present invention in use, fountain distributor 6 and liquid storage pool link to each other with refrigeration unit, by the circulation of refrigeration unit control refrigerating medium, heat exchange coil 2 links to each other with the kind of refrigeration cycle pump simultaneously, order about medium circulation in the heat exchange coil by the kind of refrigeration cycle pump, both carry out heat exchange in the ice-reserving refrigerating plant.
Referring to Fig. 2 and in conjunction with Fig. 1, a kind of ice-reserving refrigeration system of using above-mentioned ice-reserving refrigerating plant is released cooling system by ice storage system and ice-melt and is formed.Ice storage system comprises: refrigeration unit 12, refrigerating medium circulating pump 13, the port of export of this refrigeration unit 12 links to each other with refrigerating medium import 7 or fountain distributor 6 in the above-mentioned ice-reserving refrigerating plant, and the refrigerating medium outlet 8 at bottom liquid storage pool 11 places in the above-mentioned ice-reserving refrigerating plant is connected to the arrival end of refrigeration unit 12 by refrigerating medium circulating pump 13.Ice-melt is released cooling system and is comprised: heat exchange coil 2, air conditioning terminal circulating pump 14 and air conditioning terminal part (user side) 15 in the above-mentioned ice-reserving refrigerating plant; The outlet of the air-conditioning backwater of the import of heat exchange coil 2 and air conditioning terminal part 15 is joined in the above-mentioned ice-reserving refrigerating plant, and the outlet of the heat exchange coil 2 in the above-mentioned ice-reserving refrigerating plant is joined by the air-conditioning backwater inlet of air conditioning terminal circulating pump 14 with air conditioning terminal part 15.
Above-mentioned ice storage system also includes self-con-tained unit and ice-reserving quantity sensor, detects the icing degree of heat exchange coil inwall and feeds back to self-con-tained unit and then the work of control refrigeration unit by the ice-reserving quantity sensor.This ice-reserving quantity sensor is used to measure the intrinsic frequency of the mixture of ice and water that flows in the heat exchange coil, thereby judges the density of mixture of ice and water in the pipe.When the intrinsic frequency of mixture of ice and water mobile in the pipe changes, judge the density of mixture by intrinsic frequency in the measuring tube, utilize this sensor can realize on-line measurement.As an embodiment, can adopt high accurate T series Coriolis series of products, can directly measure mass flow, volume flow, density and temperature, its bore and standard pipe diameter are complementary, and can realize the optimizer system discharge capacity; Secondly, because of titanium matter liquid-contacting part is housed, has splendid antiseptic property.Continuous work along with refrigeration unit, medium (water) in the heat exchange coil will be along the glaciation of heat exchange coil inwall, in ice making latter stage, when water be frozen into 15～20mm different-thickness ice sheet and on attached to the heat exchange coil inwall time (centre can leave a routing water supply stream by), the ice-reserving quantity sensor will in time be gathered related data and feed back to self-con-tained unit, by self-con-tained unit to regulate refrigeration unit, make ice storage system reach best optimization operation, and save operating cost to greatest extent.This self-con-tained unit is provided with the non-structure that freezes formula fully and controls the ice-reserving amount, at least include the change-over circuit that is used for the data of ice-reserving quantity sensor collection are changed, be used for electrical signal converted is analyzed and data analysis comparison circuit that compares with the established standards value and the control circuit that is used to control refrigeration unit, relevant self-con-tained unit can adopt the control circuit in the existing related techniques field to realize, does not add detailed description at this.
The workflow of above-mentioned ice-reserving refrigeration system is:
Under the night ice-reserving operating mode, mainly be that ice storage system carries out work, the low temperature refrigerating medium solution that comes out through refrigeration unit 12 (available quality is than the ethylene glycol aqueous solution that is 25% industrial inhibition), fountain distributor 6 backs that are pressed and delivered to heat exchange coil 2 tops in the ice-reserving refrigerating plant by refrigerating medium circulating pump 13 evenly are sprayed onto heat exchange coil 2 surfaces by spray apertures 9, form continuously thin water film uniformly at tube outer surface, evaporation rapidly behind a large amount of heats of spray moisture film absorption heat exchange coil 2 internal water, thus the temperature of recirculated water reduces rapidly in the feasible pipe.The refrigerating medium solution that absorbs behind the heat drops in the liquid storage pool 10 of bottom, is drawn into through refrigerating medium circulating pump 13 that refrigeration unit 12 is cooled once more to be sent, and so circulation can be finished the process that stores of icing the groove cold night.Cold-storage is the time period originally, and system is the sensible heat cold-storage, and after after a while, after the water of heat exchange coil 2 the insides reached 0 ℃, just undergo phase transition this moment freezed, and cold is stored by latent heat of phase change.Increase along with ice layer thickness, the cold that stores in the heat exchange coil collects more and more, this moment, heat exchange coil 2 interior water layer thicknesses will be more and more littler, when ice storage system reaches specified ice-reserving amount or required ice layer thickness, ice-reserving quantity sensor 17 will feed back to self-con-tained unit 16 in time, saves operating cost to greatest extent.
In the daytime ice-melt is released under the cold operating mode, directly enters from the higher air-conditioning backwater of the temperature of air-conditioning side end portion 15 and washes away ice sheet in the heat exchange coil 3 and get coldly, and the ice sheet on heat exchange coil 2 inner surfaces is melted gradually from inside to outside.Because the air-conditioning backwater directly contacts with ice, good effect of heat exchange, get cold soon, the air-conditioning backwater after the cooling can hang down and reach about 1 ℃.Water at low temperature and air-conditioning bypass backwater are mixed into 2-10 ℃ chilled water (as be mixed into 7 ℃ chilled water) by control valve 18, delivering to air conditioning terminal part 15 under the effect of air conditioning terminal circulating pump 14 uses, come back to after the intensification in the ice-reserving refrigerating plant, finish ice-melt and release cold circulation.
During concrete enforcement, according to the engineering actual conditions, determine the air-conditioning refrigeration duty of modular design day, the system that proposes according to the present invention determines the capacity (wherein the selection of ice-reserving refrigerating plant should be determined in conjunction with the machine room real space) of refrigeration unit and ice-reserving refrigerating plant thus; Further determine system support equipment (as refrigerating medium circulating pump, air conditioning terminal circulating pump etc.) on this basis; At last, configurable comparatively perfect parameter monitoring and control system guarantee conversion between ice-reserving operating mode and the cooling operating mode and the cooling sharing of load problem between main frame and the ice storage unit, strengthen energy-saving run.
Claims (10)
1, a kind of ice-reserving refrigerating plant, comprise have waterproof, the shell 1 of protection against the tide and heat-insulating property, constitute the obturator that inside has cavity volume by this shell 1, it is characterized in that: in cavity volume, be provided with heat exchange coil 2, this heat exchange coil 2 be used for liquid in pipe with the pipe heat exchange of outer cavity volume cold-producing medium ice-reserving and get cold by the mobile of liquid in pipe; The import and export end of heat exchange coil is connected in the chilled water import 4 and chilled water outlet 5 that is positioned on the shell 1; On shell, be provided with refrigerating medium import 7 and refrigerating medium outlet 8, refrigerating medium by refrigerating medium import 7 enter in the cavity volume with its in heat exchange coil 2 in medium carry out heat exchange and make it form ice sheet, flow out by refrigerating medium outlet 8 again.
2, ice-reserving refrigerating plant according to claim 1, it is characterized in that: above-mentioned refrigerating medium import 7 is connected with fountain distributor (6), and this fountain distributor (6) is used for that refrigerating medium is sprayed to liquid in heat exchange coil appearance and the heat exchange coil to carry out heat exchange so that its cooling is build-up ice lamination is held at heat exchange coil.
3, ice-reserving refrigerating plant according to claim 2 is characterized in that: above-mentioned fountain distributor (6) is by being evenly arranged on the same horizontal level one by one and the pipe that is interconnected is formed, and the bottom of every pipe has densely covered spray apertures (9).
4, according to claim 1 or 2 or 3 described ice-reserving refrigerating plants, it is characterized in that: above-mentioned heat exchange coil (2) is evenly distributed in shared area of space, and its structure can be combination of snake type or screw type combination.
5, ice-reserving refrigerating plant according to claim 4 is characterized in that: above-mentioned shell (1) is a sandwich construction, includes housing (101), damp-proof layer (102), heat-insulation layer (103), water-resistant liner (104) from outside to inside at least.
6, according to claim 1 or 2 or 3 described ice-reserving refrigerating plants, it is characterized in that: above-mentioned shell (1) is a sandwich construction, includes housing (101), damp-proof layer (102), heat-insulation layer (103), water-resistant liner (104) from outside to inside at least.
7, according to claim 1 or 2 or 3 or 5 described ice-reserving refrigerating plants, it is characterized in that: above-mentioned heat exchange coil go to the bottom and shell at the bottom of the certain altitude of can being separated by between the table, the space that this height limited constitutes liquid storage pool, and described refrigerating medium outlet (8) is positioned at the liquid storage pool bottom.
8, a kind of use aforesaid right requires the ice-reserving refrigeration system of any one described ice-reserving refrigerating plant in 1 ~ 7, releases cooling system by ice storage system and ice-melt and forms; It is characterized in that: this ice storage system comprises: refrigeration unit (12), refrigerating medium circulating pump (13), the port of export of this refrigeration unit (12) links to each other with refrigerating medium import (7) or fountain distributor (6) in the above-mentioned ice-reserving refrigerating plant, and the refrigerating medium outlet (8) that the bottom liquid storage pool (11) in the above-mentioned ice-reserving refrigerating plant is located is connected to the arrival end of refrigeration unit (12) by refrigerating medium circulating pump (13); Ice-melt is released cooling system and is comprised: heat exchange coil (2), air conditioning terminal circulating pump (14) and air conditioning terminal part (15) in the above-mentioned ice-reserving refrigerating plant, the outlet of the air-conditioning backwater of the import of heat exchange coil (2) and air conditioning terminal part (15) is joined in the above-mentioned ice-reserving refrigerating plant, and the outlet of the heat exchange coil (2) in the above-mentioned ice-reserving refrigerating plant is joined by the air-conditioning backwater inlet of air conditioning terminal circulating pump (14) with air conditioning terminal part (15).
9, ice-reserving refrigeration system according to claim 7, it is characterized in that: above-mentioned ice storage system also includes self-con-tained unit and ice-reserving quantity sensor, detects the icing degree of heat exchange coil inwall and feeds back to self-con-tained unit and then the work of control refrigeration unit (12) by the ice-reserving quantity sensor.
10, ice-reserving refrigeration system according to claim 7, it is characterized in that: the refrigeration unit of said system (12) also can be selected the refrigeration unit of double evaporators for use, wherein, pass to refrigerating medium in the evaporimeter and circulate, circulate as medium with water in another evaporimeter.
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| CN200810085035A CN101532709A (en) | 2008-03-14 | 2008-03-14 | Ice-storage refrigeration device and ice-storage refrigeration system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313330A (en) * | 2011-10-14 | 2012-01-11 | 杨成栋 | Ice water air conditioner |
| CN102620364A (en) * | 2012-04-01 | 2012-08-01 | 广州贝龙环保热力设备股份有限公司 | Indirect cooling water storage air-conditioning system and operation method of indirect cooling water storage air-conditioning system |
| TWI404896B (en) * | 2010-06-01 | 2013-08-11 | ||
| CN103363606A (en) * | 2013-07-15 | 2013-10-23 | 深圳市燃气集团股份有限公司 | Multi-cold-source ice storage air conditioning system with liquid level balance mechanism |
| CN104501326A (en) * | 2014-11-12 | 2015-04-08 | 北京百度网讯科技有限公司 | Heat-dissipating system and method |
| CN106556087A (en) * | 2016-10-25 | 2017-04-05 | 珠海格力电器股份有限公司 | Ice storage control device and method and ice storage equipment |
| CN109780657A (en) * | 2019-01-23 | 2019-05-21 | 广东腾源蓄冷节能科技有限公司 | A kind of no plate renews formula dynamic ice-storage and electric heat storage system |
| CN113503600A (en) * | 2020-08-24 | 2021-10-15 | 金美善 | Air cooler capable of improving air cooling efficiency |
| CN113915699A (en) * | 2021-10-14 | 2022-01-11 | 中国科学院电工研究所 | Compact cold accumulation device |
| CN114440357A (en) * | 2022-04-11 | 2022-05-06 | 深圳市伟力低碳股份有限公司 | Refrigeration control method, device and system based on ice cold storage technology |
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2008
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI404896B (en) * | 2010-06-01 | 2013-08-11 | ||
| CN102313330A (en) * | 2011-10-14 | 2012-01-11 | 杨成栋 | Ice water air conditioner |
| CN102620364A (en) * | 2012-04-01 | 2012-08-01 | 广州贝龙环保热力设备股份有限公司 | Indirect cooling water storage air-conditioning system and operation method of indirect cooling water storage air-conditioning system |
| CN103363606A (en) * | 2013-07-15 | 2013-10-23 | 深圳市燃气集团股份有限公司 | Multi-cold-source ice storage air conditioning system with liquid level balance mechanism |
| CN103363606B (en) * | 2013-07-15 | 2016-03-02 | 深圳市燃气集团股份有限公司 | There is the multi-freezing pipe ice-storage air-conditioning system of liquid level equilibrium mechanism |
| CN104501326B (en) * | 2014-11-12 | 2017-08-11 | 北京百度网讯科技有限公司 | A kind of cooling system and method |
| CN104501326A (en) * | 2014-11-12 | 2015-04-08 | 北京百度网讯科技有限公司 | Heat-dissipating system and method |
| CN106556087A (en) * | 2016-10-25 | 2017-04-05 | 珠海格力电器股份有限公司 | Ice storage control device and method and ice storage equipment |
| CN109780657A (en) * | 2019-01-23 | 2019-05-21 | 广东腾源蓄冷节能科技有限公司 | A kind of no plate renews formula dynamic ice-storage and electric heat storage system |
| CN113503600A (en) * | 2020-08-24 | 2021-10-15 | 金美善 | Air cooler capable of improving air cooling efficiency |
| CN113503600B (en) * | 2020-08-24 | 2022-10-11 | 金美善 | Air cooler capable of improving air cooling efficiency |
| CN113915699A (en) * | 2021-10-14 | 2022-01-11 | 中国科学院电工研究所 | Compact cold accumulation device |
| CN114440357A (en) * | 2022-04-11 | 2022-05-06 | 深圳市伟力低碳股份有限公司 | Refrigeration control method, device and system based on ice cold storage technology |
| CN114440357B (en) * | 2022-04-11 | 2022-07-15 | 深圳市伟力低碳股份有限公司 | Refrigeration control method, device and system based on ice cold storage technology |
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