CN101629771A - Gas direct contact type ice slurry preparation system - Google Patents
Gas direct contact type ice slurry preparation system Download PDFInfo
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- CN101629771A CN101629771A CN200910102116A CN200910102116A CN101629771A CN 101629771 A CN101629771 A CN 101629771A CN 200910102116 A CN200910102116 A CN 200910102116A CN 200910102116 A CN200910102116 A CN 200910102116A CN 101629771 A CN101629771 A CN 101629771A
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Abstract
The invention discloses a gas direct contact type ice slurry preparation system. The system comprises three parts of refrigerant circulation, gas circulation and ice-making solution circulation, wherein a refrigerating medium adopts an environmental-friendly gas, such as air, nitrogen, and the like. Compared with a liquid refrigerating medium, the gas with same mass can generate more air bubbles in an ice slurry generator so as to increase the heat exchange area; the gas is easier to realize higher gas inlet speed so as to promote the diffusion of the air bubbles; the temperature distribution in the ice slurry generator is more even, the local supercooling is prevented, and the probability of generating an ice blockage is reduced. In addition, a first-class heat exchanger is adopted in the system. A refrigeration system evaporator is arranged in the first-class heat exchanger, and a refrigerating medium gas directly contacts with solution (ethanediol solution) in the first-class heat exchanger to exchange heat. Because of the intensive disturbance function of the gas, the convection heat exchanging factor of the refrigerating medium and the evaporator is greatly increased, and the problem of larger heat resistance caused by direct convection heat exchange of the gas and the refrigerating system evaporator is solved. Accordingly, the gas with higher temperature passes through refrigerating medium solution with lower temperature, thereby achieving the aim for removing water in the gas and further reducing the probability of the ice blockage of the system.
Description
Technical field
The present invention relates to energy field of air conditioning, relate in particular to a kind of gas direct contact type ice slurry preparation system.
Background technology
Traditional contact method is produced ice slurry and is meant that liquid refrigerant and the direct contact heat-exchanging of ice making solution are produced ice to be starched.But, this method exists following problem: 1. ice generator nozzle place takes place may to carry part steam secretly in stifled 2. refrigerant vapours of ice easily and enters refrigeration system, destroys performance of refrigerant systems 3. cold-producing mediums and may carry parts of lubricating oil secretly and enter ice generator and destroy the heat transfer property in the ice generator and make the compressor oil starvation.Therefore, can consider to adopt the gas refrigerating medium.Yet the gas refrigerating medium is with the refrigeration system evaporator heat exchange time, and thermal resistance is excessive, influences the entire system performance.
Summary of the invention
The objective of the invention is to solve contact method and produce the problem that ice slurry system practicability is faced, propose a kind of efficient, practical gas direct contact type ice slurry preparation system.。
The present invention intends adopting following technical scheme to realize purpose of the present invention:
Gas direct contact type ice slurry preparation system, it is characterized in that, it is circulated by cold-producing medium, three parts of gas circulation and the circulation of ice making solution are formed: the cold-producing medium circulation comprises the refrigeration unit that is connected successively, device for drying and filtering, magnetic valve, heating power expansion valve, first-class heat exchanger, wherein the refrigeration unit outlet is connected by first stop valve with the device for drying and filtering import, be provided with first Pressure gauge in the middle of magnetic valve and the heating power expansion valve, heating power expansion valve is connected by second stop valve with the first-class heat exchanger refrigerant inlet, the first-class heat exchanger refrigerant inlet is provided with second Pressure gauge and first temperature sensor, first-class heat exchanger is provided with second temperature sensor, the first-class heat exchanger refrigerant outlet is provided with three-temperature sensor and the 3rd Pressure gauge, and the first-class heat exchanger refrigerant outlet is by the 3rd stop valve, the 4th stop valve is connected with the refrigeration unit import; Gas circulation comprises the first-class heat exchanger that connects successively, air pump, ice generator and electric T-shaped valve, wherein the first-class heat exchanger air inlet is provided with the 4th Pressure gauge, first bimetallic thermometer, the first-class heat exchanger gas outlet is provided with second bimetallic thermometer and the 5th Pressure gauge, the first-class heat exchanger gas outlet is connected with the air pump import with the 7th stop valve and first connecting hose by the 6th stop valve, the air pump import is provided with first ball valve, the 6th Pressure gauge, the air pump outlet is provided with the 7th Pressure gauge, the air pump outlet is by second connecting hose, the 8th stop valve, the 9th stop valve is connected with the ice generator air inlet, wherein be provided with the 3rd bimetallic thermometer and first flow meter between the 8th stop valve and the 9th stop valve, the ice generator air inlet is provided with the 4th temperature sensor, the 4th bimetallic thermometer, the 8th Pressure gauge, the ice generator gas outlet is provided with the 5th bimetallic thermometer, the 5th temperature sensor, the 9th Pressure gauge, the ice generator gas vent is by the tenth stop valve, electric T-shaped valve is connected with the first-class heat exchanger air inlet with the 5th stop valve; The circulation of ice making solution comprises that putting cold circulation circulates with cold-storage: put cold circulation and comprise the ice generator that is connected successively, air conditioner end equipment, heater, wherein ice generator outlet and air conditioner end equipment import are by the 12 stop valve, the 13 stop valve connects, be provided with the 6th temperature sensor between the 12 stop valve and the 13 stop valve, the 6th bimetallic thermometer, the tenth Pressure gauge, be provided with the 7th temperature sensor between the 13 stop valve and the air conditioner end equipment import, the 7th bimetallic thermometer, the 11 Pressure gauge, import is connected by the 14 stop valve air conditioner end equipment with heater, be provided with the 12 Pressure gauge between air conditioner end equipment and the 14 stop valve, the 8th temperature sensor, the 8th bimetallic thermometer, be provided with second flowmeter between the 14 stop valve and the heater import, be provided with the 9th temperature sensor between heater outlet and the ice generator ice making solution inlet port, the 9th bimetallic thermometer, the 13 Pressure gauge, the cold-storage circulation comprises the ice generator that connects successively, Ice Storage Tank, the ice making solution pump, heater, import is connected by the 12 stop valve with Ice Storage Tank in the ice generator outlet, be provided with the 6th temperature sensor between the 12 stop valve and the Ice Storage Tank import, the 6th bimetallic thermometer, the tenth Pressure gauge, Ice Storage Tank second outlet is by being connected with the import of ice making solution pump, be provided with the 3rd connecting hose between the 15 stop valve and the import of ice making solution pump, the 14 Pressure gauge, be provided with second ball valve between outlet of ice making solution pump and the 16 stop valve, the 15 Pressure gauge, the 4th connecting hose, be provided with second flowmeter between the 16 stop valve and the heater, be provided with the 9th temperature sensor between heater and the ice generator ice making solution inlet port, the 9th bimetallic thermometer, the 13 Pressure gauge, Ice Storage Tank first outlet is connected with the outlet of the 16 stop valve by the 17 stop valve, and gas circulation adopts nitrogen.
Described cold-producing medium circulation and gas circulation adopt the first-class heat exchanger coupling.
The present invention compared with prior art has beneficial effect:
1) adopt the gas refrigerating medium to substitute conventional refrigerants, thereby can producing more bubble, the gas of equal in quality provide bigger heat exchange area to increase the volume coefficient of heat transfer, and thereby the bigger inlet velocity quickening bubble of the easier realization of gas spreads in ice generator, make the ice generator interior temperature distribution more even, avoid local overcooling, reduce the stifled possibility that takes place of ice.In addition, adopt gas such as air as refrigerating medium, inexpensive easy acquisition and environmental friendliness have reduced the use amount of cold-producing medium, energy-conserving and environment-protective.
2) the cold-producing medium circulation is adopted the first-class heat exchanger coupling with gas circulation, because the direct contact heat-exchanging of solution in gas and the first-class heat exchanger, while solution and refrigeration system evaporator heat convection, the violent disturbance of gas makes convection transfer rate increase greatly, the bigger problem of thermal resistance when having solved the direct heat convection of gas and evaporimeter.Simultaneously, owing to adopted first-class heat exchanger in the system, gas earlier through the first-class heat exchanger cooling and dehumidifying, has been avoided the generation of the stifled phenomenon of ice generator nozzle place ice before entering ice generator.
3) by introducing first-class heat exchanger on the basis of producing ice slurry system at traditional contact method, continued the high advantage of contact method heat exchange efficiency and solved its problem that exists originally.Compare the general coiled ice-storage system of current application, this system has the raising that higher evaporating temperature helps performance of refrigerant systems.And because the particularity of ice slurry, the ice slurry of generation can directly be delivered on the air-conditioning system end-equipment and use, and has vast potential for future development.
Description of drawings
Accompanying drawing is the structural representation of gas direct contact type ice slurry preparation system.
The specific embodiment
As shown in drawings, gas direct contact type ice slurry preparation system is circulated by cold-producing medium, three parts of gas circulation and the circulation of ice making solution are formed: the cold-producing medium circulation comprises the refrigeration unit 1 that is connected successively, device for drying and filtering 3, magnetic valve 4, heating power expansion valve 6, first-class heat exchanger 10, wherein refrigeration unit 1 outlet is connected by first stop valve 2 with device for drying and filtering import 3, be provided with first Pressure gauge 5 in the middle of magnetic valve 4 and the heating power expansion valve 6, heating power expansion valve 6 is connected by second stop valve 7 with first-class heat exchanger 10 refrigerant inlet, first-class heat exchanger 10 refrigerant inlet are provided with second Pressure gauge 8 and first temperature sensor 9, first-class heat exchanger 10 is provided with second temperature sensor 11, first-class heat exchanger 10 refrigerant outlets are provided with three-temperature sensor 12 and the 3rd Pressure gauge 13, and first-class heat exchanger 10 refrigerant outlets are by the 3rd stop valve 14, the 4th stop valve 15 is connected with refrigeration unit 1 import; Gas circulation comprises the first-class heat exchanger 10 that connects successively, air pump 26, ice generator 70 and electric T-shaped valve 62, wherein first-class heat exchanger 10 air inlets are provided with the 4th Pressure gauge 17, first bimetallic thermometer 18, first-class heat exchanger 10 gas outlets are provided with second bimetallic thermometer 19 and the 5th Pressure gauge 20, first-class heat exchanger 10 gas outlets are connected with air pump 26 imports with the 7th stop valve 22 and first connecting hose 23 by the 6th stop valve 21, air pump 26 imports are provided with first ball valve 24, the 6th Pressure gauge 25, air pump 26 outlets are provided with the 7th Pressure gauge 27, air pump 26 outlets are by second connecting hose 28, the 8th stop valve 29, the 9th stop valve 33 is connected with ice generator 70 air inlets, wherein be provided with the 3rd bimetallic thermometer 30 and first flow meter 32 between the 8th stop valve 29 and the 9th stop valve 33, ice generator 70 air inlets are provided with the 4th temperature sensor 34, the 4th bimetallic thermometer 35, the 8th Pressure gauge 36, ice generator 70 gas outlets are provided with the 5th bimetallic thermometer 37, the 5th temperature sensor 38, the 9th Pressure gauge 39, ice generator 70 gas vents are by the tenth stop valve 40, electric T-shaped valve 62 is connected with first-class heat exchanger 10 air inlets with the 5th stop valve 16; The circulation of ice making solution comprises that putting cold circulation circulates with cold-storage: put cold circulation and comprise the ice generator 70 that is connected successively, air conditioner end equipment 49, heater 66, wherein ice generator 70 outlets and air conditioner end equipment 49 imports are by the 12 stop valve 41, the 13 stop valve 45 connects, be provided with the 6th temperature sensor 42 between the 12 stop valve 41 and the 13 stop valve 45, the 6th bimetallic thermometer 43, the tenth Pressure gauge 44, be provided with the 7th temperature sensor 46 between the 13 stop valve 45 and air conditioner end equipment 49 imports, the 7th bimetallic thermometer 47, the 11 Pressure gauge 48,66 imports are connected by the 14 stop valve (53) air conditioner end equipment 49 with heater, be provided with the 12 Pressure gauge 50 between air conditioner end equipment (49) and the 14 stop valve (53), the 8th temperature sensor 51, the 8th bimetallic thermometer 52, be provided with second flowmeter 65 between the 14 stop valve 53 and heater 66 imports, be provided with the 9th temperature sensor 67 between heater 66 outlets and the ice generator 70 ice making solution inlet port, the 9th bimetallic thermometer 68, the 13 Pressure gauge 69, the cold-storage circulation comprises the ice generator 70 that connects successively, Ice Storage Tank 55, ice making solution pump 58, heater 66,55 imports are connected by the 12 stop valve 41 with Ice Storage Tank in ice generator 70 outlets, be provided with the 6th temperature sensor 42 between the 12 stop valve 41 and Ice Storage Tank 55 imports, the 6th bimetallic thermometer 43, the tenth Pressure gauge 44, Ice Storage Tank 55 second outlets are by being connected with 58 imports of ice making solution pump, be provided with the 3rd connecting hose 56 between the 15 stop valve 54 and 58 imports of ice making solution pump, the 14 Pressure gauge 57, be provided with second ball valve 59 between 58 outlets of ice making solution pump and the 16 stop valve 61, the 15 Pressure gauge 63, the 4th connecting hose 60, be provided with second flowmeter 65 between the 16 stop valve 61 and the heater 66, be provided with the 9th temperature sensor 67 between heater 66 and the ice generator 70 ice making solution inlet port, the 9th bimetallic thermometer 68, the 13 Pressure gauge 69, Ice Storage Tank 55 first outlets are connected with 61 outlets of the 16 stop valve by the 17 stop valve 64, and gas circulation adopts nitrogen.
Described cold-producing medium circulation and gas circulation adopt the first-class heat exchanger coupling.
Operation principle of the present invention is: open refrigeration unit and ice making solution pump and store ice slurry during low power consumption night.Refrigeration system is transferred to gas by the solution in the first-class heat exchanger with cold, and GAS ABSORPTION cold temperature reduces the bottom injection of process gas pump arrival ice generator and enters in the ice making solution.The cold temperature that ice making solution absorbs in the gas constantly descends until the generation ice slurry that reaches the freezing point.Heat temperature in the GAS ABSORPTION ice making solution raises and returns in the first-class heat exchanger simultaneously.Ice in ice generator slurry enters after the Ice Storage Tank because density contrast separates automatically, upper strata ice slurry, and lower floor's solution, ice making solution is got back in the ice generator by solution pump again.In addition, also the ice slurry of producing directly can be delivered to the terminal cold of realizing of air-conditioning system exchanges.
Claims (2)
1. gas direct contact type ice slurry preparation system, it is characterized in that, it is circulated by cold-producing medium, three parts of gas circulation and the circulation of ice making solution are formed: the cold-producing medium circulation comprises the refrigeration unit (1) that is connected successively, device for drying and filtering (3), magnetic valve (4), heating power expansion valve (6), first-class heat exchanger (10), wherein refrigeration unit (1) outlet is connected by first stop valve (2) with device for drying and filtering import (3), be provided with first Pressure gauge (5) in the middle of magnetic valve (4) and the heating power expansion valve (6), heating power expansion valve (6) is connected by second stop valve (7) with first-class heat exchanger (10) refrigerant inlet, first-class heat exchanger (10) refrigerant inlet is provided with second Pressure gauge (8) and first temperature sensor (9), first-class heat exchanger (10) is provided with second temperature sensor (11), first-class heat exchanger (10) refrigerant outlet is provided with three-temperature sensor (12) and the 3rd Pressure gauge (13), and first-class heat exchanger (10) refrigerant outlet is by the 3rd stop valve (14), the 4th stop valve (15) is connected with refrigeration unit (1) import; Gas circulation comprises the first-class heat exchanger (10) that connects successively, air pump (26), ice generator (70) and electric T-shaped valve (62), wherein first-class heat exchanger (10) air inlet is provided with the 4th Pressure gauge (17), first bimetallic thermometer (18), first-class heat exchanger (10) gas outlet is provided with second bimetallic thermometer (19) and the 5th Pressure gauge (20), first-class heat exchanger (10) gas outlet is connected with air pump (26) import with the 7th stop valve (22) and first connecting hose (23) by the 6th stop valve (21), air pump (26) import is provided with first ball valve (24), the 6th Pressure gauge (25), air pump (26) outlet is provided with the 7th Pressure gauge (27), air pump (26) outlet is by second connecting hose (28), the 8th stop valve (29), the 9th stop valve (33) is connected with ice generator (70) air inlet, wherein be provided with the 3rd bimetallic thermometer (30) and first flow meter (32) between the 8th stop valve (29) and the 9th stop valve (33), ice generator (70) air inlet is provided with the 4th temperature sensor (34), the 4th bimetallic thermometer (35), the 8th Pressure gauge (36), ice generator (70) gas outlet is provided with the 5th bimetallic thermometer (37), the 5th temperature sensor (38), the 9th Pressure gauge (39), ice generator (70) gas vent is by the tenth stop valve (40), electric T-shaped valve (62) is connected with first-class heat exchanger (10) air inlet with the 5th stop valve (16); The circulation of ice making solution comprises that putting cold circulation circulates with cold-storage: put cold circulation and comprise the ice generator (70) that is connected successively, air conditioner end equipment (49), heater (66), wherein ice generator (70) outlet and air conditioner end equipment (49) import are by the 12 stop valve (41), the 13 stop valve (45) connects, be provided with the 6th temperature sensor (42) between the 12 stop valve (41) and the 13 stop valve (45), the 6th bimetallic thermometer (43), the tenth Pressure gauge (44), be provided with the 7th temperature sensor (46) between the 13 stop valve (45) and air conditioner end equipment (49) import, the 7th bimetallic thermometer (47), the 11 Pressure gauge (48), import is connected by the 14 stop valve (53) air conditioner end equipment (49) with heater (66), be provided with the 12 Pressure gauge (50) between air conditioner end equipment (49) and the 14 stop valve (53), the 8th temperature sensor (51), the 8th bimetallic thermometer (52), be provided with second flowmeter (65) between the 14 stop valve (53) and heater (66) import, be provided with the 9th temperature sensor (67) between heater (66) outlet and ice generator (70) the ice making solution inlet port, the 9th bimetallic thermometer (68), the 13 Pressure gauge (69), the cold-storage circulation comprises the ice generator (70) that connects successively, Ice Storage Tank (55), ice making solution pump (58), heater (66), import is connected by the 12 stop valve (41) with Ice Storage Tank (55) in ice generator (70) outlet, be provided with the 6th temperature sensor (42) between the 12 stop valve (41) and Ice Storage Tank (55) import, the 6th bimetallic thermometer (43), the tenth Pressure gauge (44), Ice Storage Tank (55) second outlets are by being connected with ice making solution pump (58) import, be provided with the 3rd connecting hose (56) between the 15 stop valve (54) and ice making solution pump (58) import, the 14 Pressure gauge (57), be provided with second ball valve (59) between ice making solution pump (58) outlet and the 16 stop valve (61), the 15 Pressure gauge (63), the 4th connecting hose (60), be provided with second flowmeter (65) between the 16 stop valve (61) and the heater (66), be provided with the 9th temperature sensor (67) between heater (66) and ice generator (70) the ice making solution inlet port, the 9th bimetallic thermometer (68), the 13 Pressure gauge (69), Ice Storage Tank (55) first outlets are connected with the 16 stop valve (61) outlet by the 17 stop valve (64), and gas circulation adopts nitrogen.
2. a kind of gas direct contact type ice slurry preparation system according to claim 1 is characterized in that described cold-producing medium circulation and gas circulation adopt the first-class heat exchanger coupling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101021165A CN101629771B (en) | 2009-08-13 | 2009-08-13 | Gas direct contact type ice slurry preparation system |
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| CN2009101021165A CN101629771B (en) | 2009-08-13 | 2009-08-13 | Gas direct contact type ice slurry preparation system |
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| CN101629771A true CN101629771A (en) | 2010-01-20 |
| CN101629771B CN101629771B (en) | 2010-09-01 |
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| CN2009101021165A Expired - Fee Related CN101629771B (en) | 2009-08-13 | 2009-08-13 | Gas direct contact type ice slurry preparation system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922830A (en) * | 2010-08-05 | 2010-12-22 | 华中科技大学 | Supercooled liquid ice slurry continuous preparation device |
| CN102062506A (en) * | 2011-01-20 | 2011-05-18 | 广州鑫誉蓄能科技有限公司 | Ice slurry concentrating device and air conditioning system using same |
| CN102818410A (en) * | 2012-08-13 | 2012-12-12 | 浙江大学 | Gas-direct-contact-type ice slurry generator |
| CN103221765A (en) * | 2010-09-29 | 2013-07-24 | 林效默 | Ice-making apparatus |
| CN104214866B (en) * | 2014-09-12 | 2017-05-24 | 河南科技大学 | Unit-type ice storage air conditioning system |
| CN107388667A (en) * | 2017-08-22 | 2017-11-24 | 中国科学院广州能源研究所 | A kind of new ice slurry preparation facilities and preparation method thereof |
| CN115031456A (en) * | 2022-06-24 | 2022-09-09 | 华北水利水电大学 | Ice making and cold supplying system, refrigerator car and ice making and cold supplying control method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2160631B (en) * | 1984-04-25 | 1987-11-11 | Marine And Ind Refrigeration | Gas coolant system |
| CN1325859C (en) * | 2004-12-30 | 2007-07-11 | 上海海事大学 | Process for preparing duality ice through direct contact |
| CN100385185C (en) * | 2006-05-24 | 2008-04-30 | 浙江大学 | Solution-type dynamic ice-making system |
| CN100498142C (en) * | 2006-11-30 | 2009-06-10 | 浙江大学 | Superamphipathatic nano-solution dynamic ice-making system and method thereof |
-
2009
- 2009-08-13 CN CN2009101021165A patent/CN101629771B/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922830A (en) * | 2010-08-05 | 2010-12-22 | 华中科技大学 | Supercooled liquid ice slurry continuous preparation device |
| CN103221765A (en) * | 2010-09-29 | 2013-07-24 | 林效默 | Ice-making apparatus |
| CN103221765B (en) * | 2010-09-29 | 2015-11-25 | 林效默 | Ice maker |
| CN102062506A (en) * | 2011-01-20 | 2011-05-18 | 广州鑫誉蓄能科技有限公司 | Ice slurry concentrating device and air conditioning system using same |
| CN102818410A (en) * | 2012-08-13 | 2012-12-12 | 浙江大学 | Gas-direct-contact-type ice slurry generator |
| CN102818410B (en) * | 2012-08-13 | 2014-07-02 | 浙江大学 | Gas-direct-contact-type ice slurry generator |
| CN104214866B (en) * | 2014-09-12 | 2017-05-24 | 河南科技大学 | Unit-type ice storage air conditioning system |
| CN107388667A (en) * | 2017-08-22 | 2017-11-24 | 中国科学院广州能源研究所 | A kind of new ice slurry preparation facilities and preparation method thereof |
| CN115031456A (en) * | 2022-06-24 | 2022-09-09 | 华北水利水电大学 | Ice making and cold supplying system, refrigerator car and ice making and cold supplying control method thereof |
| CN115031456B (en) * | 2022-06-24 | 2024-04-09 | 华北水利水电大学 | Ice making and cooling system, refrigerator car and ice making and cooling control method thereof |
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| CN101629771B (en) | 2010-09-01 |
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