CN113280414A - Porous medium type cold storage device - Google Patents
Porous medium type cold storage device Download PDFInfo
- Publication number
- CN113280414A CN113280414A CN202110408932.XA CN202110408932A CN113280414A CN 113280414 A CN113280414 A CN 113280414A CN 202110408932 A CN202110408932 A CN 202110408932A CN 113280414 A CN113280414 A CN 113280414A
- Authority
- CN
- China
- Prior art keywords
- shell
- storage device
- heat exchange
- sphere
- cold storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/0017—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using cold storage bodies, e.g. ice
- F24F2005/0032—Systems storing energy during the night
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
Abstract
The invention discloses a porous medium type cold accumulation device, which comprises a shell, wherein a liquid inlet and a liquid outlet which are communicated with the shell are arranged on the shell; a plurality of spheres are arranged in the shell, a coolant is arranged in each sphere, and the surface of each sphere is a heat exchange surface; circulation gaps are formed between every two adjacent spheres and between each sphere and the shell, and working fluid flows into the shell through the liquid inlet, exchanges heat through the circulation gaps and the heat exchange surface and then flows out of the liquid outlet; according to the invention, circulation gaps are formed between two adjacent spheres and between the spheres and the shell, so that a porous structure is formed, the contact area of the working fluid and the heat exchange surface is increased, the heat exchange effect is enhanced, and the heat exchange efficiency and the icing rate are improved.
Description
Technical Field
The invention relates to the technical field of ice cold accumulation, in particular to a porous medium type cold accumulation device.
Background
With the development of economy, the use of large air conditioners in buildings is increasing day by day, and the problems brought by the increase of power consumption and imbalance of day and night power consumption are brought. Load transfer is one of the current means for solving the contradiction, namely weakening peak power utilization and achieving balanced power supply. The load transfer is that the ice storage air conditioning system is adopted to refrigerate in the power utilization valley period at night by adopting the electric refrigerator and store the cold energy in the form of ice. The stored cold energy is released in the peak period of electricity utilization so as to meet the requirements of air conditioners of buildings.
The performance of the cold accumulation device has important influence on the running performance of the whole ice cold accumulation in the ice making process, and meanwhile, the freezing rate of the cold accumulation device is one of important indexes for measuring the running efficiency of the whole system. The traditional cold accumulation system is in an ice-coil type, a coil is immersed in water, glycol is introduced into the coil, and the water is frozen through the low-temperature glycol. However, when the glycol in the pipe flows, part of cold energy still does not exchange heat with water and the water in the cold storage device cannot rapidly obtain cold energy to freeze.
Disclosure of Invention
The invention aims to provide a porous medium type cold accumulation device, which aims to solve the problems of low heat exchange efficiency and low icing rate caused by small contact area between ethylene glycol and water in the prior art.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
a porous medium type cold accumulation device comprises a shell, wherein a liquid inlet and a liquid outlet which are communicated with the shell are arranged on the shell;
a plurality of spheres are arranged in the shell, a coolant is arranged in each sphere, and the surface of each sphere is a heat exchange surface;
and circulation gaps are formed between every two adjacent spheres and between each sphere and the shell, and working fluid flows into the shell through the liquid inlet, exchanges heat through the circulation gaps and the heat exchange surface and then flows out of the liquid outlet.
Further, the ball body is made of hot-dip galvanized steel plates.
Furthermore, the coolant in the sphere is water.
Further, the working fluid is an inhibitory glycol.
Further, the inner wall of the shell is provided with a heat insulation material.
Further, the heat insulation material is made of polyurethane.
Furthermore, the shell is made of galvanized steel sheets.
Furthermore, the bottom outside the shell is connected with a bottom fixing device.
According to the technical scheme, the embodiment of the invention at least has the following effects:
1. the invention adopts the structure that the circulation gaps are formed between two adjacent spheres and between the spheres and the shell, thereby forming a porous structure, increasing the contact area of the working fluid and the heat exchange surface, further playing a role in strengthening the heat exchange effect and improving the heat exchange efficiency and the icing rate;
2. the cold accumulation device hot-dip galvanized steel plate is used as a heat exchange interface of the inhibitory glycol and water, so that the heat exchange efficiency is improved;
3. the cold accumulation device enhances heat exchange and improves the freezing rate and the freezing rate at the same time; meanwhile, due to the design of the porous structure, the weight of the cold accumulator is reduced, and the structure is simpler and lighter;
4. this application sets up a plurality of spheroids in the casing, sets up the coolant in the spheroid, and the heat-transfer surface separates coolant and coolant between to the ice that has prevented the coolant from forming causes the collision because of the disturbance of working fluid and then spheroid or casing take place cracked problem.
Drawings
Fig. 1 is a schematic view of the overall structure of a cold storage device according to an embodiment of the present invention.
Wherein: 1. a heat exchange surface; 2. a coolant; 3. a working fluid; 4. a housing; 5. a thermal insulation material; 6. footing fixing device.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
It should be noted that in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention but do not require that the present invention must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. As used in the description of the present invention, the terms "front," "back," "left," "right," "up," "down" and "in" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
As shown in fig. 1, a porous medium type cold storage device comprises a shell 4, wherein a liquid inlet and a liquid outlet which are communicated with the shell are arranged on the shell 4; a plurality of spheres are arranged in the shell 4, a coolant 2 is arranged in each sphere, and the surface of each sphere is a heat exchange surface 1; circulation gaps are formed between every two adjacent spheres and between each sphere and the shell 4, and working fluid flows into the shell 4 through the liquid inlet, exchanges heat with the heat exchange surface through the circulation gaps and then flows out of the liquid outlet.
According to the invention, circulation gaps are formed between two adjacent spheres and between the spheres and the shell, so that a porous structure is formed, the contact area of the working fluid 3 and the heat exchange surface 1 is increased, the heat exchange effect is enhanced, and the heat exchange efficiency and the freezing rate are improved.
The specific structural diagram of the invention is shown in fig. 1, the sphere is made of hot-dip galvanized steel plate, the sphere is of a hollow structure, the shell of the sphere is a heat exchange surface 1, and a circulation gap is formed between the spheres and the shell, so that the whole body forms a porous structure. The material of spheroid in this application adopts hot dip galvanized steel sheet can guarantee that the spheroid has good rust-resistant, anticorrosion ability, has guaranteed the holistic life of device.
The cold-storage agent contained in the ball body is water. The coolant working fluid 3 is a suppressive glycol and the working fluid is able to fill the entire flow gap. During cold accumulation, the secondary refrigerant inhibitory glycol enters from the liquid inlet and quickly fills the whole cold accumulation device. The temperature of the secondary refrigerant is-10 ℃, and the inhibitory glycol exchanges heat with the coolant 2 on the inner side of the heat exchange surface 1 through the heat exchange surface 1 of the sphere. The cold storage agent 2 begins to freeze on the inner side of the heat exchange surface due to the fact that cold energy of inhibitory glycol is absorbed, and the heat exchange surface 1 separates the cold storage agent from the cold storage agent, so that the situation that the shell or the sphere is broken due to collision of ice formed by water due to disturbance of secondary refrigerant is prevented.
In some embodiments, the diameter of the sphere is between 25 and 35cm, and the sphere with the diameter can ensure sufficient icing of the coolant, namely, the working fluid 3 (inhibiting glycol) circulating in the circulating gap formed between the sphere and the sphere can effectively and sufficiently ice the coolant 2. The sphere adopts the diameter design, can make the coolant quick freeze simultaneously, has improved the heat exchange efficiency and the rate of freezing of device.
In some embodiments, the sphere is made by punch forming, and the sphere is provided with an openable and closable small hole for loading and unloading the coolant 2.
In some embodiments, as shown in FIG. 1, the spheres do not fill the entire shell 4, with tubesheets at either end of the shell, and the spheres are located between the tubesheets at both ends. Through holes are distributed on the tube plate, and working fluid enters the shell with the sphere through the through holes on the tube plate after entering from the liquid inlet. The design can ensure that the working fluid of the tube plate dispersedly enters the shell between the two tube plates, ensure that the working fluid is rapidly contacted with all spheres, and improve the heat exchange efficiency.
In the present application, the housing 4 is made by using a thick galvanized steel sheet, and the bottom of the housing 4 is welded and fixed with a footing fixing device 6, and the footing fixing device 6 is used for supporting the housing 4. The inner wall of the shell 4 is provided with a heat insulation material, and the heat insulation material 5 inhibits the exchange of cold energy and heat of the natural environment. In some embodiments, the insulation is polyurethane insulation.
Meanwhile, the interior of the cold accumulation device adopts a porous structure, and the porous structure has the advantages of high specific surface area, high permeability, high mechanical strength and the like, and has important practical significance for reducing the internal volume of the cold accumulation device, lightening the equipment mass and strengthening heat exchange.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (8)
1. A porous medium type cold accumulation device is characterized by comprising a shell, wherein a liquid inlet and a liquid outlet which are communicated with the shell are arranged on the shell;
a plurality of spheres are arranged in the shell, a coolant is arranged in each sphere, and the surface of each sphere is a heat exchange surface;
and circulation gaps are formed between every two adjacent spheres and between each sphere and the shell, and working fluid flows into the shell through the liquid inlet, exchanges heat through the circulation gaps and the heat exchange surface and then flows out of the liquid outlet.
2. The porous media type cold-storage device according to claim 1, wherein the spherical body is a spherical body made of hot-dip galvanized steel sheet.
3. The porous media type cold storage device according to claim 1, wherein the cold storage agent in the spherical body is water.
4. The porous media cold storage device of claim 1, wherein said working fluid is a suppressive glycol.
5. The hole media type cold storage device according to claim 1, wherein an inner wall of the housing is provided with a thermal insulation material.
6. The pore-media type cold storage device according to claim 5, wherein the thermal insulation material is a thermal insulation material made of polyurethane.
7. The pore media type cold storage device according to claim 1, wherein the housing is made of a galvanized steel sheet.
8. The hole media type cold storage device according to claim 1, wherein a foot fixing means is attached to a bottom outside the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110408932.XA CN113280414A (en) | 2021-04-16 | 2021-04-16 | Porous medium type cold storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110408932.XA CN113280414A (en) | 2021-04-16 | 2021-04-16 | Porous medium type cold storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113280414A true CN113280414A (en) | 2021-08-20 |
Family
ID=77276970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110408932.XA Pending CN113280414A (en) | 2021-04-16 | 2021-04-16 | Porous medium type cold storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113280414A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653027U (en) * | 2010-02-03 | 2010-11-24 | 辛天龙 | Flow-dividing honeycomb-type ice storing device |
| CN202040916U (en) * | 2011-03-15 | 2011-11-16 | 上海弗格森制冷设备有限公司 | Dynamic ice cold storing and refrigerating equipment |
| US20170370598A1 (en) * | 2014-12-15 | 2017-12-28 | 3M Innovative Properties Company | Heat and mass transfer devices with wettable layers for forming falling films |
| CN110108142A (en) * | 2019-05-22 | 2019-08-09 | 中国科学院理化技术研究所 | Accumulation of heat/cooler |
| CN210400110U (en) * | 2019-05-22 | 2020-04-24 | 中国科学院理化技术研究所 | Heat/cold storage device |
-
2021
- 2021-04-16 CN CN202110408932.XA patent/CN113280414A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201653027U (en) * | 2010-02-03 | 2010-11-24 | 辛天龙 | Flow-dividing honeycomb-type ice storing device |
| CN202040916U (en) * | 2011-03-15 | 2011-11-16 | 上海弗格森制冷设备有限公司 | Dynamic ice cold storing and refrigerating equipment |
| US20170370598A1 (en) * | 2014-12-15 | 2017-12-28 | 3M Innovative Properties Company | Heat and mass transfer devices with wettable layers for forming falling films |
| CN110108142A (en) * | 2019-05-22 | 2019-08-09 | 中国科学院理化技术研究所 | Accumulation of heat/cooler |
| CN210400110U (en) * | 2019-05-22 | 2020-04-24 | 中国科学院理化技术研究所 | Heat/cold storage device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106654430B (en) | One kind is based on power battery thermal management system in a low temperature of heat pipe and phase-change material | |
| CN102353288B (en) | Heat-pipe type ice-storing ice-melting cold-accumulating device and ice-storing cold-accumulating air conditioner | |
| CN201003824Y (en) | Ice cold-storage air-conditioning device | |
| CN101881492B (en) | Dynamic ice cold storing and refrigerating equipment | |
| CN200940970Y (en) | Thermal pipe type ice storage, melting ice and refrigerator | |
| CN113280414A (en) | Porous medium type cold storage device | |
| CN101749043A (en) | Temperature differential mine air conditioner cold-heat source energy system | |
| CN218645684U (en) | Refrigerating system of developments ice cold-storage | |
| CN102374804A (en) | Heat pipe cold accumulation device | |
| CN111351165B (en) | Compartment fractal ice storage tank | |
| CN215892814U (en) | Micro-channel energy-saving system with cold storage mechanism | |
| CN212227455U (en) | Cold accumulation type air-cooled heat exchanger | |
| CN212242898U (en) | Cold-storage strip, cold-storage subassembly and refrigerator car | |
| CN211476185U (en) | Ice storage water tank based on flat heat pipe | |
| CN113669817A (en) | Millet electricity ice cold-storage and heat accumulation economic benefits and social benefits system | |
| CN201126221Y (en) | Energy-saving energy-storing equipment for air conditioning system | |
| CN209418731U (en) | A kind of compound thermal management system being applied to cylindrical battery based on heat pump principle | |
| CN208042289U (en) | Double-source heat pump and heating system | |
| CN107131694A (en) | A kind of Cool Thermal Storage For The Air conditioning system | |
| CN101666543A (en) | Heat pump water heater and control method | |
| CN212961966U (en) | Central air conditioning cold-storage device | |
| CN111826130A (en) | Low-temperature phase-change cold-storage composite solvent, preparation method thereof and generating device | |
| CN117663319B (en) | Multi-rib ice cold accumulation pipe and ice cold accumulation tank | |
| CN2497204Y (en) | Ice-storing ball | |
| CN117308222A (en) | Ice storage device for ice storage air conditioning system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210820 |