CN102353288B - Heat-pipe type ice-storing ice-melting cold-accumulating device and ice-storing cold-accumulating air conditioner - Google Patents
Heat-pipe type ice-storing ice-melting cold-accumulating device and ice-storing cold-accumulating air conditioner Download PDFInfo
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Abstract
The invention discloses a heat-pipe type ice-storing ice-melting cold-accumulating device and an ice-storing cold-accumulating air conditioner. The heat-pipe type ice-storing ice-melting cold-accumulating device is characterized in that an ice-storing box and a secondary refrigerant box of the heat-pipe type ice-storing ice-melting cold-accumulating device are vertically arranged in a box body up and down, the secondary refrigerant box is provided with a liquid inlet and a liquid outlet, and the ice-storing box is filled with water; multiple heat pipes pass through a partition plate so as to be evenly arranged in the ice-storing box and the secondary refrigerant box, and heat transfer materials are arranged in the ice-storing box and the secondary refrigerant box; a corrugated plate or foamed metal is utilized as the heat transfer materials, a heat pipe is a cylindrical hollow circular pipe with two enclosed ends, and the internal surface of the hollow circular pipe is provided with multiple trapezoidal groove channels; and the depth of each trapezoidal groove is 0.5-1mm, and the hollow inner diameter of the heat pipe is 25-75mm. Compared with the prior art, the device provided by the invention has the advantages that the heat transfer efficiency is improved, and the flow resistance of the secondary refrigerant is small; and the heat transfer effect of the added corrugated plate or the foamed metal is improved; and the liquid in an ice-storing section exists in a brash ice mode, the phenomenon of overlong ice melting time is avoided, the corrugated plate or the foamed metal is utilized to improve the heat transfer efficiency.
Description
Technical field
This patent relates to a kind of novel ice-reserving cold-storage device, particularly relates to a kind of heat-pipe type ice-storing ice-melting cold-storage device, the invention still further relates to the air-conditioning that contains this heat-pipe type ice-storing ice-melting cold-storage device.
Background technology
Since the crisis of eighties of last century world energy sources; national governments all attach great importance to the exploitation of " energy savings " and novel alternative energy source; because the multi-efficiency that the ice-reserving technology possesses peak load shifting, energy savings, protection of the environment, significantly reduces expenses has won government and user's extensive approval.The states such as American-European Japan and Korea S take the lead in the ice-reserving technology is incorporated in the air conditioning system, at present the large tracts of land popularization and application this energy accumulating technique.Japan is at present in existing more than 10 ten thousand of the building that uses ice storage system; American plan is with the implementation goal of Technology of Cold Storage Air Conditions popularization and application to 99%.
In order to solve daytime that China electric power occurs and the huge load difference at night, take full advantage of the trough-electricity of electric network night, China begins to introduce and the research ice storage technology from eighties of last century the nineties, and national accumulation of energy engineering project accumulative total only has more than 500 up till now.National correlation department has been put into effect electricity price peak-valley difference policy in China in 2004, reached at present 4:1～5:1, also will constantly widen peak-valley difference in the future, to encourage promoting the use of of energy accumulating technique.China's annual electricity generating capacity 3.65 trillion kilowatt hours in 2009 occupy the second place of the world.But the needs of fast development and the people's lives electricity consumption sharp increase of national economy are not still satisfied in supply of electric power, and national short of electricity situation does not obtain radical change yet, and the use of electric power is rendered as that peak-valley difference is large, the situation of peak power wretched insufficiency.Widely used central air conditioning has become important large electricity consumer in the big-and-middle-sized building of China, its power consumption will account for 40% ~ 60% of building total power consumption, wherein mainly by day operation of most of air-conditioning equipment is the one of the main reasons that causes the electrical network peak-valley difference large.Widening so that some areas power tense on daytime of peak-valley difference, and night electricity is superfluous, like this so that during the low ebb operational efficiency in power station lower.Ice-chilling air conditioning system can be realized the effect of electrical network " peak load shifting " is become one of effective ways that address this problem because of it.
Ice-chilling air conditioning system, it is exactly the thermal storage effect that utilizes ice, utilize the electric power at network load low ebb phase (night), refrigeration machine is moved under full load, the cold that air-conditioning is required partly or entirely stores in cool storage medium ice with the form of sensible heat and latent heat, and cold is discharged to satisfy the needs of the air-conditioning system of building in network load peak period (daytime) again.In addition, effect except " peak load shifting ", ice-chilling air conditioning system can reduce refrigeration plant capacity and installing power, because the ratio of refrigeration plant oepration at full load increases, running status is stable, improve refrigeration plant operational efficiency and utilization rate, saved certain operating cost along with the implementation of electricity price between peak and valley policy can be the user.
Different according to structure, ice-storage air-conditioning system mainly is divided into following four large classes:
The coiled ice storage system by the heat-transfer surface of the coil pipe that is immersed in metal in the water-filled Ice Storage Tank or plastics as cool storage medium and refrigerating medium, freezes by the mobile outer surface of coil pipe that makes of refrigerating medium in coil pipe, thereby stores cold.The coiled ice storage system can be divided into outer ice-melt and interior ice-melt according to the difference of ice-melting mode;
The packaged type ice storage system, intensive being placed in the ice storage unit of ice-reserving container that will the encapsulation cool storage medium by the low temperature refrigerating medium ice storage unit of flowing through, makes cool storage medium in the container freeze to store the cold accumulation system of cold, comprises ice hockey, slab;
The ice sheet falling-type ice storage system constantly freezes the thin ice sheet on the plate-type evaporator surface of refrigeration host computer, thereby then is slipped to the cold accumulation system that stores cold in the Ice Storage Tank.The ice sheet falling-type ice storage system is called again ice collection formula or flake ice formula ice storage system;
Ice crystal formula ice storage system is cooled to the refrigerating medium of low concentration below 0 ℃, produces tiny and uniform ice crystal, and the material that forms the ice pulpous state with refrigerating medium stores the cold accumulation system in Ice Storage Tank.
The problem that existing ice storage system device exists:
The coiled ice storage system such as outer melting type melt ice on coil system, is directly to cool off ice making with cold-producing medium, and Ice Storage Tank is equivalent to the evaporimeter of main frame, and the refrigeration dosage of this device is large, and the weld of coil pipe is many, and refrigrant leakage and maintenance difficult often occur.
The packaged type ice storage system, the carrying out of ice-reserving and deicing processes, its heat exchange thermal resistance all can increase gradually, and therefore ice-reserving and ice-melt speed also descend.
The ice sheet falling-type ice storage system belongs to the dynamic ice-making mode, and its weak point is to increase the mechanism that borneol comes off, and can increase breakdown of refrigeration system, also produces simultaneously the energy loss about 8%.
Ice crystal formula ice storage system, ice slurry and solution that the crystal ice granule that generate is even, tiny, its production Technology is so far in the middle of improving.
Summary of the invention
The heat exchange efficiency that the present invention is intended to overcome prior art is not high, flow resistance large, the high in cost of production shortcoming, the high heat-pipe type ice-storing ice-melting cold-storage device of a kind of heat exchange efficiency is provided and is provided with the ice-reserving cold accumulation air-conditioner of this heat-pipe type ice-storing ice-melting cold-storage device.
The object of the invention is achieved through the following technical solutions:
A kind of heat-pipe type ice-storing ice-melting cold-storage device comprises casing, ice-storage box, refrigerating medium case, heat pipe, dividing plate and heat-transfer matcrial; Ice-storage box and refrigerating medium case are placed in up and down in the casing, are provided with dividing plate between ice-storage box and the refrigerating medium case; The refrigerating medium case is provided with inlet and liquid outlet; Water is housed in ice-storage box; A plurality of heat pipes pass dividing plate and evenly are arranged in ice-storage box and the refrigerating medium case, all are provided with heat-transfer matcrial in ice-storage box and the refrigerating medium case; Heat-transfer matcrial is corrugated plate or foam metal, and wherein the layering of polylith corrugated plate is horizontally fixed in ice-storage box and the refrigerating medium case, and heat pipe passes corrugated plate; Foam metal filled heat pipe periphery in ice-storage box and refrigerating medium case; Described heat pipe is the columniform hollow circular-tube of closed at both ends, the hollow circular-tube inner surface evenly is provided with a plurality of trapezoidal conduits, and the dovetail groove degree of depth 0.5 ~ 1mm, the internal diameter of heat pipe hollow core are 25 ~ 75mm, seal between heat pipe and the dividing plate, the hollow circular-tube of heat pipe is equipped with working solution.
Further, described heat pipe preferably adopts copper pipe or stainless steel tube manufacturing.
Dovetail groove in the described heat pipe is shunk to outside wall surface by internal face.
Working solution in the described heat pipe is preferably ethanol, acetone or liquefied ammonia.
A kind of ice-reserving cold accumulation air-conditioner that is provided with described heat-pipe type ice-storing ice-melting cold-storage device comprises heat-pipe type ice-storing ice-melting cold-storage device, the first eg pump, the second eg pump, air conditioning terminal circulating pump, customer charge, plate type heat exchanger and refrigeration unit; Tubular type ice-storing ice-melting cold-storage device is contained in the casing, and the inlet on the refrigerating medium case of heat-pipe type ice-storing ice-melting cold-storage device is connected with refrigeration unit with liquid outlet and is connected, and wherein the pipeline that is connected with inlet of refrigeration unit is provided with the second eg pump; Liquid outlet also is connected with the entrance point of plate type heat exchanger, inlet also is connected with the port of export of plate type heat exchanger by the first eg pump, and the cold fluid port of export of customer charge is connected with the hot fluid port of export with the cold fluid entrance point of plate type heat exchanger respectively with the hot fluid entrance point.
With respect to prior art, the present invention has following advantage:
(1) exploitation has the heat pipe of conduit in the trapezium structure, changes the inner surface structure of heat pipe, can increase heat pipe inner surface condensation area more than 20%, improves the back-flow velocity of liquid more than 30%.Because the effect of interior conduit, the surface tension of condensation water makes liquid no longer do to stop for a long time at tube wall, but breaks away from cooling wall along conduit rapidly, so whole barrel has more cooling wall directly to contact with steam, reach the enhanced heat exchange effect, improve heat transfer coefficient more than 50%.Compare with existing ice storage unit, under identical ice-reserving amount condition, volume can dwindle about 40%;
(2) heat exchange efficiency is high: corrugated plate or the foam metal of filling between the heat pipe of refrigerating medium section and ice-reserving section can increase heat exchange area, have strengthened heat transfer; And exist mainly with the form of mixture of ice and water in the ice-reserving section, have mobilely, the speed that is conducive to heat exchange improves;
(3) flow resistance is little: the heat convection outside the heat exchange of refrigerating medium case is pipe, flow resistance is little than the coiled ice-reserving, moreover corrugated plate or foam metal form tiny ice cube by the ice of ice-reserving, form bulky ice cube unlike ice in other ice storage units, when melting, avoided the problem at ice-melt dead angle;
(4) ice making and ice-melt are effective: because corrugated plate or foam metal have good thermal conductivity, reduced the thermograde in the coolant fluid, its temperature difference is controlled at 2 ℃, has shortened the time of ice making (ice-melt), has improved the energy efficiency of system;
(5) Systems balanth is good: heat pipe is non-interfering, when operation single heat pipe break down and do not affect the work of other heat pipes, the impact of system also is only limited to heat exchange efficiency decreases;
(6) the ice-reserving section is stable: the water-ice point in the ice-reserving section is stable, and seals, and water quality is difficult for contaminated, has guaranteed the job stability of ice-reserving section;
(7) simple in structure, be easy to processing, there is not the phenomenon of refrigrant leakage: be used for the corrugated plate of augmentation of heat transfer or foam metal and do not have difficult point on the processing technology with being connected to of internal thread heat pipe, process simply than the mode that installs fin additional.
Description of drawings
Fig. 1 is the heat-pipe type ice-storing ice-melting cold-storage device front view with corrugated plate;
Fig. 2 is the heat-pipe type ice-storing ice-melting cold-storage device front view with foam metal;
Fig. 3 is the top view of Fig. 1 or Fig. 2;
Fig. 4 is with heat-pipe type ice-storing ice-melting cold-storage device air conditioner structure schematic diagram;
Fig. 5 is the heat pipe structure schematic diagram among Fig. 1 or Fig. 2;
Fig. 6 is the control principle drawing with heat-pipe type ice-storing ice-melting cold-storage device air-conditioning.
Specific implementation method
For further understanding the present invention, be described in detail of the present invention below in conjunction with drawings and embodiments, need to prove that the scope of protection of present invention is not limited to the description of embodiment.
Shown in Fig. 1,2,3 and 5, a kind of heat-pipe type ice-storing ice-melting cold-storage device comprises casing 1, ice-storage box 2, refrigerating medium case 3, heat pipe 4, dividing plate 5 and heat-transfer matcrial 8; Ice-storage box 2 and refrigerating medium case 3 are placed in up and down in the casing 1, are provided with dividing plate 5 between ice-storage box 2 and the refrigerating medium case 3; Refrigerating medium case 3 is provided with inlet 6 and liquid outlet 7; Water is housed in ice-storage box, by in ice-storage box, freezing and melting heat is stored and discharged.A plurality of heat pipes 4 pass dividing plate 5 and evenly are arranged in ice-storage box 2 and the refrigerating medium case 3, all be provided with heat-transfer matcrial 8 in ice-storage box 2 and the refrigerating medium case 3, as shown in Figure 1, heat-transfer matcrial 8 is corrugated plate, the layering of polylith corrugated plate is horizontally fixed in ice-storage box 2 and the refrigerating medium case 3, and heat pipe 4 passes corrugated plate; As shown in Figure 2, heat-transfer matcrial 8 is foam metal, foam metal filled heat pipe 4 peripheries in ice-storage box 2 and refrigerating medium case 3; As shown in Figure 5, heat pipe 4 is the columniform hollow circular-tube of closed at both ends, the hollow circular-tube inner surface evenly is provided with a plurality of trapezoidal conduits, the dovetail groove degree of depth 0.5 ~ 1mm, the internal diameter of heat pipe hollow core (diameter) is 25 ~ 75mm, sealing between heat pipe 4 and the dividing plate 5, the hollow circular-tube of heat pipe 4 is equipped with working solution, and working solution is preferably ethanol, acetone or liquefied ammonia.Heat pipe 4 is heat transfer element, is gravity type heat pipe.Heat pipe 4 adopts copper pipe or stainless steel tube manufacturing.The dovetail groove of heat pipe 4 is to be 60 ° of (two isosceles limit between angle) direct through groove preferably being provided with opening on the tangential direction of heat pipe inner wall face, and dovetail groove is shunk to outside wall surface by internal face.Its degree of depth is no more than 2/3 of wall thickness.This conduit is groove diametrically.The caliber of opposite heat tube 4 can determine that according to the size of ice-storage box in the air-conditioning system internal diameter of heat pipe adopts national normal value, the dovetail groove degree of depth 0.5 ~ 1mm in the diameter range 25 ~ 75mm, heat pipe, and heat resistant material is copper pipe or stainless steel tube.
As shown in Figure 2, it is 60 ~ 80% foamed aluminium or foam copper material that foam metal adopts existing porosity, and foam metal has the porous metals of some strength and rigidity.Because in the metallic object a lot of intercommunicating pores are arranged, relative surface area is very large, the contact-making surface with water in ice-storage box is larger, thereby has strengthened the transmission of heat between heat pipe and WATER AS FLOW MEDIUM.
As shown in Figure 1, corrugated plate is undulatory plate, and lateral arrangement is in casing, and the connected mode of corrugated plate and heat pipe is expand tube or welding, and it is corrugated that corrugated plate adopts copper sheet or aluminum alloy sheet to strike out cross section.Corrugated plate has following function:
Make liquid and heat pipe and the increase of corrugated plate contact area in the casing, enlarged the transmission area of heat (cold);
Corrugated plate is divided into a plurality of zones with the liquid in the casing, and each regional liquid directly contacts with corrugated plate, has reduced liquid temperature differential (thermograde);
Corrugated plate is compared with liquid has good thermal conductivity, has reduced the thermograde in the coolant fluid, and the temperature of temperature in the liquid and heat pipe outer surface is approached, and has shortened the time of ice making (ice-melt), has improved the energy efficiency of system.
Refrigerating medium is selected spent glycol (CH
2OHCH
2OH) aqueous solution.
The heat-pipe type ice-storing ice-melting cold-storage device both can be positioned in the existing central air-conditioning, also can be positioned in the central air-conditioning to be installed, and the existing central air-conditioning of having installed and used.
As shown in Figure 4, a kind of ice-reserving cold accumulation air-conditioner that is provided with the heat-pipe type ice-storing ice-melting cold-storage device comprises heat-pipe type ice-storing ice-melting cold-storage device, the first eg pump 9, the second eg pump 10, air conditioning terminal circulating pump 11, customer charge 12, plate type heat exchanger 13 and refrigeration unit 14.Tubular type ice-storing ice-melting cold-storage device is contained in the casing 1, and the inlet 6 on the refrigerating medium case 3 of tubular type ice-storing ice-melting cold-storage device is connected with liquid outlet and is connected with refrigeration unit 14 respectively, and wherein the pipeline that is connected with inlet 6 of refrigeration unit 14 is provided with the second eg pump 10; Liquid outlet 7 also is connected with the entrance point of plate type heat exchanger 13, inlet 6 also is connected with the port of export of plate type heat exchanger 13 by the first eg pump 9, and the cold fluid port of export of customer charge 12 is connected with the hot fluid port of export with the cold fluid entrance point of plate type heat exchanger 13 respectively with the hot fluid entrance point.
The ice-reserving cold accumulation air-conditioner course of work that is provided with the heat-pipe type ice-storing ice-melting cold-storage device comprises process of cool and releases cold process.
Process of cool: refrigerating medium ethylene glycol keeps-3 ℃ to-6 ℃ in refrigeration unit 14, be pumped into the refrigerating medium case 3 from inlet 6 by eg pump 10, ethylene glycol washes away heat pipe 4 and carries out heat exchange, the heat of water passes to ethylene glycol in the refrigerating medium case 3 by heat pipe 4 in the ice-storage box 2, ethylene glycol is discharged from liquid outlet 7, takes away heat.The coolant-temperature gage of while in ice-storage box 2 reduces gradually and begins to freeze.In diabatic process, corrugated plate or foam metal augmentation of heat transfer.Liquid in the casing and heat pipe and corrugated plate (foam metal) contact area increases, enlarged the transmission area of heat (cold), heat pipe outside corrugated plate nested or welding is divided into a plurality of zones with the liquid in the casing, this regional liquid directly contacts with corrugated plate, has reduced liquid temperature differential (thermograde).Corrugated plate is compared with liquid has good thermal conductivity, has reduced the thermograde in the coolant fluid, and the temperature of temperature in the liquid and heat pipe outer surface is approached, and so just can reduce the thermal resistance in the ice-reserving process, raising heat (cold) transmission efficiency.The form storage cold of the liquid-solid phase by water.Finish process of cool.Generally be during low power consumption, carry out process of cool.
Release cold process: in the daytime, the ice-reserving cold accumulation air-conditioner is released cold process.Ethylene glycol in the plate type heat exchanger 13 enters in the refrigerating medium case 3 by eg pump 9, and the temperature of ethylene glycol is between 3-6 ℃ at this moment, and the ice in ice-storage box 2 absorbs the heat of ethylene glycol, and ice cube begins to melt.Thereby the cold that process of cool is stored in the ice discharges, ethylene glycol after the cooling is discharged from liquid outlet 7, enter into the cold fluid import of plate type heat exchanger, carry out heat exchange with the hot fluid that enters into plate type heat exchanger from the customer charge end by heat transferring plate, until the ethylene glycol of low temperature is finished heat exchange with the hot fluid working medium (water) of customer charge 12 in plate type heat exchanger 13, satisfy the needs of customer charge 12, finish the cold process of releasing.
As shown in Figure 6, in the casing 1 inlet 6 on the refrigerating medium case 3 are connected with liquid outlet with the liquid outlet of refrigeration unit 14 and pipeline that inlet is connected on be respectively equipped with the first temperature sensor K1 and the second temperature sensor K2; Be respectively equipped with three-temperature sensor K3 and the 4th temperature sensor K4 on the liquid outlet of the inlet 6 of refrigerating medium case 3 and liquid outlet 7 and plate type heat exchanger 13 and the inlet connecting pipe; The pipeline that the cold fluid port of export that plate type heat exchanger 13 is connected with customer charge is connected with the hot fluid entrance point is to be respectively equipped with the first pressure sensor L1 and the second pressure sensor L2; The first temperature sensor K1, the second temperature sensor K2, three-temperature sensor K3, the 4th temperature sensor K4 and the first pressure sensor L1 be connected pressure sensor L2 and be connected with Programmable Logic Controller PLC respectively; Programmable Logic Controller PLC also is connected with touch-screen-enabled O with power supply Power respectively; Programmable Logic Controller PLC is connected with air conditioning terminal circulating pump 11 by the first frequency converter S1, be connected with the first eg pump 9 by the second frequency converter S2, be connected with the second eg pump 10 by the 3rd frequency converter S3, be connected with refrigeration unit 14 by the 4th frequency converter S4.The first temperature sensor K1, the second temperature sensor K2, three-temperature sensor K3 and the 4th temperature sensor K4 collecting temperature direct information Programmable Logic Controller PLC carry out the analyzing and processing computing, the first pressure sensor L1 and the second pressure sensor L2 gather pressure information, be sent to Programmable Logic Controller PLC and carry out the analyzing and processing computing, the VFC instruction of Programmable Logic Controller PLC output is controlled the operation of air conditioning terminal circulating pump 11 through the first frequency converter S1, by the second frequency converter S2, the 3rd frequency converter S3 controls the operation of the first eg pump 9 and the second eg pump 10.
The heat pipe with trapezoidal interior conduit of developing, change the inner surface structure of heat pipe, the inner surface of conventional heat pipe is take smooth surface as main, and heat pipe of the present invention within it wall adds interior conduit, can increase heat pipe inner surface condensation area more than 20%, improve the back-flow velocity of liquid more than 30%.Adopt the heat pipe inner surface of trapezoid groove structure, can improve about 1 times of the capillary action intensity of liquid film, working medium is when being condensed into liquid film in the heat pipe, trapezoid groove structure guiding liquid film directed flow is in groove, turn back to again evaporation ends, according to the variation of surface tension of liquid, can draw and improve back-flow velocity more than 30%.
Working media in the heat pipe adopts low-temperature working liquid, such as ethanol, acetone, liquefied ammonia etc.Working media absorbing heat at heat pipe evaporator section flashes to steam, and steam spreads out of heat at condensation segment, and self is condensed into liquid state.Conduit in the heat pipe utilizes the surface tension of condensation water to make liquid no longer do to stop for a long time at tube wall, but break away from cooling wall along conduit rapidly, so whole barrel has more cooling wall directly to contact with steam, reaches the enhanced heat exchange effect, helps to improve heat transfer coefficient.Simultaneously, in ice-storage box 2 and refrigerating medium case 3, all be provided with heat-transfer matcrial 8, heat-transfer matcrial 8 is the corrugated plate that foam metal or metal are made, Thermal Conductivity by Using is than the height of liquid, the about 45W/mK of thermal conductivity factor, the about 17W/mK of stainless steel thermal conductivity factor, the about 400W/mK of the about 17W/mK thermal conductivity factor of copper thermal conductivity factor such as the about 0.5W/mK of the thermal conductivity factor of water, steel, under the good conduction of heat of corrugated plate in worker quality liquid (foam metal), heat transfer coefficient can increase more than 1 times.
Owing to improved heat transfer coefficient, increased the heat transfer area in the unit volume, can reduce the volume of ice storage unit, compare with existing ice storage unit, under identical ice-reserving amount condition, volume can dwindle about 40%.。
Claims (5)
1. an ice-reserving cold accumulation air-conditioner that is provided with the heat-pipe type ice-storing ice-melting cold-storage device is characterized in that: comprise heat-pipe type ice-storing ice-melting cold-storage device, the first eg pump, the second eg pump, air conditioning terminal circulating pump, customer charge, plate type heat exchanger and refrigeration unit; The heat-pipe type ice-storing ice-melting cold-storage device is contained in the casing, and the inlet on the refrigerating medium case of heat-pipe type ice-storing ice-melting cold-storage device is connected with refrigeration unit with liquid outlet and is connected, and wherein the pipeline that is connected with inlet of refrigeration unit is provided with the second eg pump; Liquid outlet also is connected with the entrance point of plate type heat exchanger, inlet also is connected with the port of export of plate type heat exchanger by the first eg pump, and the cold fluid port of export of customer charge is connected with the hot fluid port of export with the cold fluid entrance point of plate type heat exchanger respectively with the hot fluid entrance point;
Described heat-pipe type ice-storing ice-melting cold-storage device comprises casing, ice-storage box, refrigerating medium case, heat pipe, dividing plate and heat-transfer matcrial; Ice-storage box and refrigerating medium case are placed in up and down in the casing, are provided with dividing plate between ice-storage box and the refrigerating medium case; The refrigerating medium case is provided with inlet and liquid outlet; Water is housed in ice-storage box; A plurality of heat pipes pass dividing plate and evenly are arranged in ice-storage box and the refrigerating medium case, all are provided with heat-transfer matcrial in ice-storage box and the refrigerating medium case; Heat-transfer matcrial is corrugated plate or foam metal, and wherein the layering of polylith corrugated plate is horizontally fixed in ice-storage box and the refrigerating medium case, and heat pipe passes corrugated plate; Foam metal filled heat pipe periphery in ice-storage box and refrigerating medium case; Described heat pipe is the columniform hollow circular-tube of closed at both ends, the hollow circular-tube inner surface evenly is provided with a plurality of trapezoidal conduits, and the dovetail groove degree of depth 0.5 ~ 1mm, the internal diameter of heat pipe hollow core are 25 ~ 75mm, seal between heat pipe and the dividing plate, the hollow circular-tube of heat pipe is equipped with working solution.
2. ice-reserving cold accumulation air-conditioner according to claim 1 is characterized in that: be respectively equipped with the first temperature sensor and the second temperature sensor on the liquid outlet of the inlet on the refrigerating medium case and liquid outlet and refrigeration unit and the pipeline that inlet is connected; Be respectively equipped with three-temperature sensor and the 4th temperature sensor on the liquid outlet of the inlet on the refrigerating medium case and liquid outlet and plate type heat exchanger and the inlet connecting pipe; Plate type heat exchanger is connected with customer charge respectively and is respectively equipped with the first pressure sensor and the second pressure sensor on the cold fluid port of export and the pipeline that the hot fluid entrance point is connected; The first temperature sensor, the second temperature sensor, three-temperature sensor, the 4th temperature sensor and the first pressure sensor be connected pressure sensor and be connected with Programmable Logic Controller respectively; Programmable Logic Controller also is connected with touch-screen-enabled with power supply respectively; Programmable Logic Controller is connected with the air conditioning terminal circulating pump by the first frequency converter, is connected with the first eg pump by the second frequency converter, is connected with the second eg pump by the 3rd frequency converter, is connected with refrigeration unit by the 4th frequency converter.
3. ice-reserving cold accumulation air-conditioner according to claim 1 is characterized in that: described heat pipe employing copper pipe or stainless steel tube manufacturing.
4. ice-reserving cold accumulation air-conditioner according to claim 1, it is characterized in that: the dovetail groove in the described heat pipe is shunk to outside wall surface by internal face.
5. ice-reserving cold accumulation air-conditioner according to claim 1, it is characterized in that: the working solution in the described heat pipe is ethanol, acetone or liquefied ammonia.
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| CN115076805A (en) * | 2021-03-10 | 2022-09-20 | 北京天意能科技有限公司 | Ice-storage and heat-storage dual-purpose energy storage box |
| CN115014016B (en) * | 2022-06-29 | 2024-07-02 | 珠海格力电器股份有限公司 | Cold accumulation device, refrigeration system and cold accumulation method |
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| CN2457552Y (en) * | 2000-12-11 | 2001-10-31 | 无锡市石化通用件厂 | Micro heat pipe |
| CN101338985A (en) * | 2008-01-09 | 2009-01-07 | 南京工业大学 | Heat pipe type porous foam metal heat exchanger |
| CN201811620U (en) * | 2010-10-13 | 2011-04-27 | 淄博明新化工有限公司 | Gravity type heat pipe |
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