CN201892476U - Indirect heat exchange type ice crystal spreading prevention device - Google Patents
Indirect heat exchange type ice crystal spreading prevention device Download PDFInfo
- Publication number
- CN201892476U CN201892476U CN201020595335XU CN201020595335U CN201892476U CN 201892476 U CN201892476 U CN 201892476U CN 201020595335X U CN201020595335X U CN 201020595335XU CN 201020595335 U CN201020595335 U CN 201020595335U CN 201892476 U CN201892476 U CN 201892476U
- Authority
- CN
- China
- Prior art keywords
- heat exchange
- ice crystal
- jet
- ice
- jet pipe
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses an indirect heat exchange type ice crystal spreading prevention device, which comprises a jet pipe and a heat exchange pipe, wherein the jet pipe comprises a speed increasing section at the rear end and a jet section at the front end; the jet section of the jet pipe is sheathed outside the heat exchange pipe which forms heat exchange structure together with the jet section; a heat exchange cavity is formed in the heat exchange pipe; a heat exchange inlet and a heat exchange outlet are arranged on the heat exchange pipe; and the heat exchange cavity is communicated with the outside through the heat exchange inlet and the heat exchange outlet. The indirect heat exchange type ice crystal spreading prevention device has simple structure and can effectively block the rapid reverse spreading of ice crystals.
Description
Technical field
The utility model belongs to ice will make the field, be specifically related to the anti-ice crystal transmission device of a kind of indirect heat exchange formula.
Background technology
Ice-storage air-conditioning is a kind of user side administrative skill that the network load peak load shifting is had remarkable effect, this technology is utilized the ice making of electric power unlatching more than needed at night refrigeration unit, the form of cold with ice stored, the peak of power consumption period then discharges cold for the air conditioner user demand by the mode of ice-melt by day, thereby avoid or reduce the electric power that uses peak period, realization is to the peak load shifting of network load, alleviate the peak-valley difference contradiction of network load, improve the operational efficiency in power plant, finally realize energy-saving and emission-reduction benefit of overall importance.
The core of ice-storage air-conditioning is exactly an ice-making system, traditional ice storage technology mainly comprises two kinds of ice ball type and coileds, the ice-making process of these two kinds of ice storage technologies all is by the low temperature non freezing solution from the refrigeration main frame cold transmission feedwater to be frozen under static relatively state, therefore is referred to as static ice cold-storage.The transmission of heat need overcome the big thermal resistance of plastics or metal pipe-wall and ice sheet in static ice-making process, thereby it is low to have a heat transfer efficiency, and ice making speed is slow, many shortcomings such as refrigeration host computer energy consumption height.
The subcooled water formula dynamic ice cold-storage technology that grows up at the inherent technology shortcoming of static state ice cold-storage has then fundamentally solved above-mentioned technical disadvantages, the ice-making process of dynamic ice cold-storage is to utilize glassware for drinking water that the principle of certain degree of supercooling is arranged, at first in heat exchanger, produce and be lower than 0 ℃ subcooled water, guarantee that by special technique subcooled water does not take place by freeze (otherwise can stop up heat exchanger) in heat exchanger simultaneously, wait subcooled water to discharge heat exchanger then and enter afterwards ice generator again, remove supercooled state, generate the ice slurry.The ice slurry that generates is pumped and enters Ice Storage Tank, frozen water natural layering under the effect of density contrast then, and ice is stored in the groove, and water then continues circulation to be sent into cool-heat-exchanger and produced subcooled water, and so circulation realizes dynamic ice-making process continuously.Heat exchange in the dynamic ice cold-storage ice-making process is passed through liquid in crossing cold heat exchanger---and liquid forced convertion mode realizes, therefore has the coefficient of heat transfer far above static ice making, thereby overcome traditional static ice cold-storage the intrinsic coefficient of heat transfer low, energy consumption high-technology shortcoming.
The key of guaranteeing the stable operation of dynamic ice cold-storage ice-making process is effectively to prevent the frozen problem in the cold heat exchanger.Subcooled water is a kind of astable physical form, under effects such as various disturbances such as stirring, impact, ultrasonic wave radiation, perhaps exists and all very easily removes coldly under the situations such as nuclearing centre such as hydraulically rough surface, impurity particle, crystal ice granule in moment, generates ice and starches.Because runner is narrow and small in the cool-heat-exchanger excessively, not only can stop up runner in case generate the ice slurry, also can cause the structural damage of heat exchanging device, so the ice crystal propagation blocking-up of crossing between cold heat exchanger outlet and the ice generator inlet is one of key technology because of the volumetric expansion that takes place after freezing.Ice crystal is best nucleator for subcooled water, and in a single day subcooled water runs into ice crystal will generate new ice crystal around ice crystal rapidly, and the process of this generation ice crystal has strong propagation trend.In dynamic ice-making system, the a large amount of ice crystals that exist in the ice slurry generator have the strong trend of upstream (crossing cool-heat-exchanger) and propagating along the subcooled water pipeline, and as not adopting effective blocking-up, ice crystal has been bamboo telegraph in the cold heat exchanger, thereby freeze heat exchanger, cause the ice making cycle interruption.
Summary of the invention
The purpose of this utility model is to overcome the defective of prior art, provides a kind of indirect heat exchange formula to prevent the ice crystal transmission device, and the utility model is simple in structure, and can effectively block the fast reverse propagation of ice crystal.
Its technical scheme is as follows:
A kind of indirect heat exchange formula is prevented the ice crystal transmission device, comprise jet pipe and heat exchanger tube, jet pipe comprises the speedup section of rear end and the jet segment of front end, heat exchanger tube is sheathed on the jet segment of jet pipe outward and forms heat exchange structure with jet segment, in the heat exchanger tube is heat exchanging chamber, heat exchanger tube is provided with heat exchange import and heat exchange outlet, and heat exchanging chamber communicates with the external world by heat exchange import and heat exchange outlet.
The technical scheme of the further refinement of aforementioned techniques scheme can be:
Inwall at described jet pipe and stream chamber wall is equipped with hydrophobic coat.
The cross-sectional area of described jet pipe front end is less than the cross-sectional area of rear end.
Described jet pipe is horn-like.
Be equipped with adpting flange at the mouth of pipe of described speedup section rear end and the front end mouth of pipe place of jet segment.
Described heat exchanger tube forms ring cavity in the heat exchanger tube in the form of a ring, this ring cavity with the jet segment of described jet pipe around.
Described ring cavity and the coaxial setting of described jet pipe.
Described heat exchange import is gone into heat exchange outlet and is staggered mutually, and along the tangential direction setting of described ring-type heat exchanger tube, to strengthen the heat exchange effect.
In the utility model, the direction that described subcooled water advances when flowing is a front end, and its rightabout is the rear end.
In the utility model, the speedup section of jet pipe and jet segment can link into an integrated entity by welding or alternate manner, and connecting portion need seamlessly transit, and produce local resistance and violent disturbance to prevent subcooled water at this; Hydrophobic coat can adopt polytetrafluoroethylene (PTFE) or other analog material, and the jet segment of jet pipe can be straight tube, but is not limited to straight tube, and the mouth of pipe can adopt adpting flange to realize with being connected of extraneous pipeline, also can adopt clip to realize.
In sum, the utility model has the advantages that:
1, when subcooled water when the speedup section enters jet segment, its flow velocity increases, the subcooled water of high flow velocities enters ice slurry generator by jet segment, when the ice crystal in the ice slurry generator upstream propagates into anti-ice crystal transmission device described in the utility model, generate a large amount of ice crystals at the inwall of jet pipe jet segment and near inner wall region, this moment is owing to the outer wall in the jet pipe jet segment is provided with heat exchanger tube, water temperature in the heat exchanger tube is higher, water and jet pipe in the heat exchanger tube carry out heat exchange, the ice crystal that touches jet pipe jet segment inwall is melted fast, significantly weaken thereby make near the ice crystal of jet pipe jet segment inwall and the adhesive force of inside pipe wall, ice crystal is quick flow further downstream under the washing away of jet pipe jet segment high speed subcooled water, has avoided the upstream propagation of ice crystal;
2, owing to be equipped with hydrophobic coat at the inwall of described jet pipe and stream chamber wall, even the inwall of ice crystal attached to jet pipe and stream chamber wall arranged, because of its adhesive force is little, as long as the flow velocity of subcooled water is enough big, can be blown off wall and forward end of ice crystal flows;
3, heat exchanger tube is coated at the jet segment of jet pipe, and with the periphery of jet segment around, make heat exchanger tube and jet segment form uniform heat exchange;
4, after the front end mouth of pipe place of the mouth of pipe of described speedup section rear end and jet segment is equipped with adpting flange, being connected of more convenient and other pipeline of system.
Description of drawings
Fig. 1 is the application drawing of the described anti-ice crystal transmission device of the utility model embodiment in subcooled water formula ice slurry manufacturing system;
Fig. 2 is the cutaway view of the described anti-ice crystal transmission device of the utility model embodiment;
Fig. 3 is the stereogram of Fig. 2;
Description of reference numerals:
1, jet pipe, 2, heat exchanger tube, 3, the speedup section, 4, jet segment, 5, the heat exchange import, 6, the heat exchange outlet, 7, heat exchanging chamber, 8, adpting flange.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated:
As Fig. 2, shown in Figure 3, a kind of indirect heat exchange formula is prevented the ice crystal transmission device, comprise jet pipe 1 and heat exchanger tube 2, jet pipe 1 comprises the speedup section 3 of rear end and the jet segment 4 of front end, be sheathed on the jet segment 4 of jet pipe 1 outside the heat exchanger tube 2 and form heat exchange structures with jet segment 4, in the heat exchanger tube 2 be heat exchanging chamber 7, and heat exchanger tube 2 is provided with heat exchange import 5 and heat exchange outlet 6, and heat exchanging chamber 7 exports 6 by heat exchange import 5 and heat exchange and communicates with the external world.
Wherein, the inwall at jet pipe 1 and stream chamber wall is equipped with hydrophobic coat; The cross-sectional area of jet pipe 1 front end is less than the cross-sectional area of rear end, and jet pipe 1 is horn-like; Be equipped with adpting flange 8 at the mouth of pipe of speedup section 3 rear ends and the front end mouth of pipe place of jet segment 4.Described heat exchanger tube 2 forms ring cavities in the form of a ring in the heat exchanger tube 2, this ring cavity with the jet segment 4 of jet pipe 1 around and with jet pipe 1 coaxial setting.
Be illustrated in figure 1 as the operational system figure of subcooled water formula dynamic ice cold-storage ice-making process; the water at low temperature (such as 0 ℃) of taking out in the Ice Storage Tank was admitted to cold heat exchanger by water pump; under the cooling of refrigeration host computer, become the subcooled water that is lower than 0 ℃ (such as-2 ℃) but still keeps liquid state; above-mentioned subcooled water is after crossing cold heat exchanger outlet eliminating; promptly enter the described anti-ice crystal transmission device of present embodiment; through entering ice slurry generator after the anti-ice crystal transmission device again; remove supercooled state; generate the ice slurry and sent back to Ice Storage Tank; ice slurry is at Ice Storage Tank internal cause frozen water density contrast and natural layering; ice floats over the upper strata; depositing in water is in lower floor, and the water of lower floor continues to be recycled sent into cold heat exchanger, circulated so repeatedly; the ice-reserving amount constantly increases, up to holding full shutdown.
In sum, the advantage of present embodiment is:
1, when subcooled water when speedup section 3 enters jet segment 4, its flow velocity increases, the subcooled water of high flow velocities enters ice slurry generator by jet segment 4, when the ice crystal in the ice slurry generator upstream propagates into the anti-ice crystal transmission device of present embodiment, generate a large amount of ice crystals at the inwall of jet pipe 1 jet segment 4 and near inner wall region, this moment is owing to the outer wall in jet pipe 1 jet segment 4 is provided with heat exchanger tube 2, water temperature in the heat exchanger tube 2 is higher, water and jet pipe 1 in the heat exchanger tube 2 carry out heat exchange, the ice crystal that touches jet pipe 1 jet segment 4 inwalls is melted fast, significantly weaken thereby make near the ice crystal of jet pipe 1 jet segment 4 inwalls and the adhesive force of inside pipe wall, ice crystal is quick flow further downstream under the washing away of jet pipe 1 jet segment 4 high speed subcooled waters, has avoided the upstream propagation of ice crystal;
2, owing to be equipped with hydrophobic coat at the inwall of jet pipe 1 and stream chamber wall, even the inwall of ice crystal attached to jet pipe 1 and stream chamber wall arranged, because of its adhesive force is little, as long as the flow velocity of subcooled water is enough big, can be blown off wall and forward end of ice crystal flows;
3, heat exchanger tube 2 is coated at the jet segment 4 of jet pipe 1, and with the periphery of jet segment 4 around, make heat exchanger tube 2 and jet segment 4 form uniform heat exchange;
4, after the front end mouth of pipe place of the mouth of pipe of speedup section 3 rear ends and jet segment 4 is equipped with adpting flange 8, being connected of more convenient and other pipeline of system.
Only be specific embodiment of the utility model below, do not limit protection domain of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection domain of the present utility model.
Claims (8)
1. an indirect heat exchange formula is prevented the ice crystal transmission device, it is characterized in that, comprise jet pipe and heat exchanger tube, jet pipe comprises the speedup section of rear end and the jet segment of front end, heat exchanger tube is sheathed on the jet segment of jet pipe outward and forms heat exchange structure with jet segment, in the heat exchanger tube is heat exchanging chamber, and heat exchanger tube is provided with heat exchange import and heat exchange outlet, and heat exchanging chamber communicates with the external world by heat exchange import and heat exchange outlet.
2. the anti-ice crystal transmission device of indirect heat exchange formula according to claim 1 is characterized in that, is equipped with hydrophobic coat at the inwall of described jet pipe and stream chamber wall.
3. the indirect heat exchange formula is prevented the ice crystal transmission device according to claim 1, it is characterized in that the cross-sectional area of described jet pipe front end is less than the cross-sectional area of rear end.
4. as the anti-ice crystal transmission device of indirect heat exchange formula as described in the claim 3, it is characterized in that described jet pipe is horn-like.
5. as the anti-ice crystal transmission device of indirect heat exchange formula as described in each in the claim 1 to 4, it is characterized in that, be equipped with adpting flange at the mouth of pipe of described speedup section rear end and the front end mouth of pipe place of jet segment.
6. as the anti-ice crystal transmission device of indirect heat exchange formula as described in each in the claim 1 to 4, it is characterized in that described heat exchanger tube forms ring cavity in the form of a ring in the heat exchanger tube, this ring cavity with the jet segment of described jet pipe around.
7. as the anti-ice crystal transmission device of indirect heat exchange formula as described in the claim 6, it is characterized in that described ring cavity and the coaxial setting of described jet pipe.
8. as the anti-ice crystal transmission device of indirect heat exchange formula as described in the claim 6, it is characterized in that described heat exchange import is gone into the heat exchange outlet and staggered mutually, and along the tangential direction setting of described ring-type heat exchanger tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020595335XU CN201892476U (en) | 2010-11-04 | 2010-11-04 | Indirect heat exchange type ice crystal spreading prevention device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020595335XU CN201892476U (en) | 2010-11-04 | 2010-11-04 | Indirect heat exchange type ice crystal spreading prevention device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201892476U true CN201892476U (en) | 2011-07-06 |
Family
ID=44221950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020595335XU Expired - Fee Related CN201892476U (en) | 2010-11-04 | 2010-11-04 | Indirect heat exchange type ice crystal spreading prevention device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201892476U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012139A (en) * | 2010-11-04 | 2011-04-13 | 广州鑫誉蓄能科技有限公司 | Indirect heat exchange type ice crystal spread-resistant device |
| GB2571362A (en) * | 2018-02-22 | 2019-08-28 | Pravinchandra Budhdeo Shamir | Heat exchange system |
-
2010
- 2010-11-04 CN CN201020595335XU patent/CN201892476U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012139A (en) * | 2010-11-04 | 2011-04-13 | 广州鑫誉蓄能科技有限公司 | Indirect heat exchange type ice crystal spread-resistant device |
| GB2571362A (en) * | 2018-02-22 | 2019-08-28 | Pravinchandra Budhdeo Shamir | Heat exchange system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102012139A (en) | Indirect heat exchange type ice crystal spread-resistant device | |
| CN102003856A (en) | Jet type anti-ice crystal transmitter | |
| CN102679654B (en) | Supercooling disable device utilizing high-pressure water jet mode | |
| CN201702337U (en) | Metallic crystallizer strengthened adopting ultrasonic cavitation | |
| CN201892476U (en) | Indirect heat exchange type ice crystal spreading prevention device | |
| CN103486786B (en) | Ice crystal spread-resistant device | |
| CN102679652B (en) | Method and device for preparing ice slurry | |
| CN203413989U (en) | Shell-and-tube type heat exchanger | |
| CN201954867U (en) | Jet-type ice crystal-resistant transmitter | |
| CN202403362U (en) | Integral pin-fin tube type ice storage tank | |
| CN105115214A (en) | Direct evaporation ice slurry circulation dynamic ice production device | |
| CN203837361U (en) | Ice storage tank improving reliability of supercooling ice making method | |
| CN207300002U (en) | A kind of caisson type sea water source heat pump heat exchanger | |
| CN204693684U (en) | A kind of enclosed type crosses cold releasing device | |
| CN201206958Y (en) | Double face integral burbling heat exchange plate | |
| CN202303973U (en) | Frost-resistance flat-plate solar thermal collector | |
| CN101792657B (en) | Device for preparing hydrate slurry | |
| CN204574656U (en) | A kind of de-supercooling device adopting high pressure gas jet flow mode | |
| CN202281534U (en) | Heat pipe type ice storage, ice melting and cold storage device and ice storage and cold storage air conditioner | |
| CN201476173U (en) | Air-water composite heat-source hot-pump type split air conditioner | |
| CN204514152U (en) | A kind ofly can reclaim the open-frame type gasifier heat exchanger tube of LNG cold energy by thermoelectricity | |
| CN202127762U (en) | Semiconductor water dispenser with copper inner container | |
| CN106152340A (en) | A kind of enclosed type supercooling release device | |
| CN107178847B (en) | Nano-fluid ice storage central cooling system | |
| CN202675713U (en) | Water distribution device of heat accumulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20161104 |