CN201361466Y - Energy-saving ice-melting system for cold trap ice melting of freeze-drying device - Google Patents
Energy-saving ice-melting system for cold trap ice melting of freeze-drying device Download PDFInfo
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- CN201361466Y CN201361466Y CNU2008202323445U CN200820232344U CN201361466Y CN 201361466 Y CN201361466 Y CN 201361466Y CN U2008202323445 U CNU2008202323445 U CN U2008202323445U CN 200820232344 U CN200820232344 U CN 200820232344U CN 201361466 Y CN201361466 Y CN 201361466Y
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Abstract
The utility model relates to the food processing equipment, in particular to an energy-saving ice-melting system for cold trap ice melting of a freeze-drying device, which comprises a cold trap, a throttle valve or expansion valve, a condenser, a refrigeration compressor, an ice-melting tank, a heat exchanger and a water storage tank. The cold trap is connected in sequence with the refrigeration compressor, the heat exchanger and the condenser through refrigerant pipelines; the refrigerant pipeline between the condenser and the cold trap is provided with the throttle valve or expansion valve; one branch water pipeline of the heater exchanger is connected in sequence with the water storage tank and a circulating pump and forms a circulating branch with the heat exchanger; the other branch water pipeline of the heat exchanger is connected in sequence with the ice-melting tank, the water storage tank and the circulating pump, and forms a circulating branch with the heat exchanger; and the ice-melting tank is connected with the cold trap through the water pipeline. The utility model can save the energy, and correspondingly reduce the configuration of the condenser or improve the operating efficiency of the refrigeration compressor under the condition without changing the configuration of the condenser. No separate heat source is required during the ice melting, no ice-melting water is required, and no separate period for ice melting is required after the completion of drying.
Description
Technical field
The utility model relates to food processing equipment, specifically a kind of energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap.
Background technology
For some food, medicine or other article, need under vacuum, freezing condition, carry out drying processing, promptly need vacuum freeze.Vacuum freeze drying generally is to place drying cabin (or directly freezing at drying cabin) with freezing good material, the vacuum that needs will be evacuated to by vavuum pump in the cabin, heating plate in the cabin is supplied with the required heat of water sublimed in the material, the moisture that distils out be frozen into communicate with drying cabin or the cold-trap coil pipe in drying cabin on, end to be dried or in dry run, removed by thawing again.
The mode that the ice-out on the cold-trap is removed in end to be dried is called the disposable aqueous fusion ice of catching again, generally needs a large amount of water and long time, not only wastes water but also influence operating efficiency.Then need two or more cold-traps in the dry run cold-trap ice-melt, other cold-trap guarantees the continuity of dry run during cold-trap ice-melt therein, though saved the ice-melt time, needs a large amount of water or steam to supply with the heat that ice-melt needs.
In addition, cold-trap keeps low temperature to need refrigeration compressor to supply with cold.In the working cycles of refrigeration compressor, constitute: cold-trap, compressor, condenser, choke valve or expansion valve by four major parts.The cold-producing medium of low-temp low-pressure absorbs the heat of cooled object (steam that distils out in the material) and evaporates in cold-trap, refrigeration compressor absorbs the low-pressure low-temperature (pressure limit 72～355kPa from cold-trap, temperature range-28～0 ℃) refrigerant gas, be compressed into high pressure-temperature (pressure limit 1004～1352kPa through refrigeration compressor, 85～120 ℃ of temperature ranges) refrigerant gas, enter and be condensed into high pressure refrigerant liquid in the condenser, high pressure refrigerant liquid is through choke valve or expansion valve, the refrigerant liquid that becomes low-pressure low-temperature enters into the cold-trap heat absorption and flashes to refrigerant gas, the cooled compressor of refrigerant gas of evaporation siphons away, and finishes kind of refrigeration cycle one time.(annotate: pressure is absolute pressure)
Refrigerant gas at high pressure-temperature enters in the process that is condensed into high pressure refrigerant liquid in the condenser, emits a large amount of heats, take away these heats and need a large amount of cooling water circulations in the condenser, and these heats is dispersed in the environment finally.This shows that this part heat is not utilized and has been lost.
The utility model content
In order to solve the energy consumption height that exists in the existing vacuum freeze system and the problem of energy loss, the purpose of this utility model is to provide the energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap of a kind of energy utilization rate height, production efficiency height, good reliability.
The purpose of this utility model is achieved through the following technical solutions:
The utility model comprises cold-trap, choke valve or expansion valve, condenser, refrigeration compressor and ice-melt jar, also comprise heat exchanger and water tank, cold-trap links to each other with refrigeration compressor, heat exchanger and condenser successively by refrigerant line, and the refrigerant line between condenser and the cold-trap is provided with choke valve or expansion valve; One branching pipe road of heat exchanger connects water tank and circulating pump successively, constitutes the circulation branch road with heat exchanger, and another branching pipe road of heat exchanger connects ice-melt jar, water tank and circulating pump successively, constitutes the circulation branch road with heat exchanger; The ice-melt jar links to each other with cold-trap by water lines.
Wherein: on the described heat exchanger one branching pipe road, be provided with first valve between heat exchanger and the water tank; On another branching pipe road of heat exchanger, be provided with second valve between heat exchanger and the ice-melt jar; Be provided with the ice-melt tube bank that is connected with the import and export of water lines respectively in the ice-melt jar; On the ice-melt jar liquid level gauge is installed; The discharge pipe line of ice-melt jar is provided with the ice-melt draining pump; The water lines of ice-melt jar and cold-trap is provided with the ice-melt valve; Cold-trap is two or more; The interior gas of cold-trap that the ice-melt jar enters ice-melt is negative pressure steam.
Advantage of the present utility model and good effect are:
1. the utility model utilizes the waste heat in the kind of refrigeration cycle, has saved the energy.
2. the utility model has added heat exchanger in kind of refrigeration cycle, can correspondingly reduce the configuration of condenser or improved the operating efficiency of refrigeration compressor under the configuring condition that does not reduce condenser.
3. the utility model has adopted two or more cold-traps, and other cold-trap guarantees the continuity of dry run during cold-trap ice-melt therein; Do not need independent thermal source during ice-melt, do not need ice-melt water, do not need the independent ice-melt time behind dry the end.
4. the utility model adopts the ice-melt of negative pressure steam, and the negative pressure vapor (steam) temperature is at 15～25 ℃, and the refrigeration once more to cold-trap when entering the cold-trap ice-melt can not increase load and fluctuation.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Wherein: 1 is cold-trap, and 2 is choke valve or expansion valve, and 3 is condenser, 4 is heat exchanger, and 5 is refrigeration compressor, and 6 is water tank, 7 is first valve, and 8 is circulating pump, and 9 is second valve, 10 are the ice-melt jar, and 11 are the ice-melt tube bank, and 12 are the ice-melt draining pump, 13 is liquid level gauge, 14 are the ice-melt valve, and 15 is refrigerant line, and 16 is water lines.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model comprises cold-trap 1, choke valve or expansion valve 2, condenser 3, heat exchanger 4, refrigeration compressor 5, water tank 6 and ice-melt jar 10, cold-trap 1 links to each other with refrigeration compressor 5, heat exchanger 4 and condenser 3 successively by refrigerant line 15, and the refrigerant line 15 between condenser 3 and the cold-trap 1 is provided with choke valve or expansion valve 2.One branching pipe road 16 of heat exchanger 4 connects water tank 6, circulating pump 8 successively, takes back heat exchanger 4 again, constitutes the circulation branch roads with heat exchanger 4, on the water lines 16 of this branch road, be provided with first valve 7 between heat exchanger 4 and the water tank 6; Another branching pipe road 16 of heat exchanger 4 connects ice-melt jar 10, water tank 6 and circulating pump 8 successively, takes back heat exchanger 4 again, constitutes the circulation branch roads with heat exchanger 4, on the water lines 16 of this branch road, be provided with second valve 9 between heat exchanger 4 and the ice-melt jar 10.Be provided with the ice-melt tube bank 11 that is connected with the import and export of water lines respectively in the ice-melt jar 10, the two ends of ice-melt tube bank 11 are connected with water tank 6 and heat exchanger 4 respectively by water lines 16.Cold-trap 1 is two or more, and ice-melt jar 10 is connected with each cold-trap 1 respectively by water lines 16, is equipped with ice-melt valve 14 on ice-melt jar 10 and each cold-trap 1 water pipe connecting road 16.On the ice-melt jar 10 liquid level gauge is installed.The discharge pipe line of ice-melt jar 10 is provided with ice-melt draining pump 12.
Operation principle of the present utility model is:
During work, the cold-producing medium of low-temp low-pressure absorbs the heat of cooled object (steam that distils out in the material) and evaporates in cold-trap 1, low-pressure low-temperature (pressure limit 72～355kPa that refrigeration compressor 5 absorbs from cold-trap 1, temperature range-28～0 ℃) refrigerant gas, be compressed into the refrigerant gas of high pressure-temperature (pressure limit 1004～1352kPa, 85～120 ℃ of temperature ranges) through refrigeration compressor 5; At first the refrigerant gas of high pressure-temperature enters heat exchanger 4, carries out heat exchange with the water of lower temperature in the heat exchanger 4, with the heating of the water in the heat exchanger 4, and the cold-producing medium cooling; Just absorb the part heat of high pressure high temperature refrigerant in heat exchanger 4, do not reach the condensation temperature of cold-producing medium, cold-producing medium still is gas in heat exchanger 4.Then, the refrigerant gas that temperature reduces enters in the condenser 3 again, be condensed into high pressure refrigerant liquid, high pressure refrigerant liquid is through choke valve or expansion valve 2, the refrigerant liquid that becomes low-pressure low-temperature enters into the heat of vaporization that cold-trap 1 absorbs cooled object again and becomes refrigerant gas, the cooled compressor 5 of refrigerant gas of evaporation siphons away, and finishes kind of refrigeration cycle one time.
After the water that temperature is lower in the heat exchanger 4 had absorbed the heat of cold-producing medium, temperature raise, and circulates between heat exchanger 4, first valve 7 and water tank 6 by circulating pump, and is constantly heated; And heated water is stored in the water tank 6, and standby during for ice-melt, water is in continuous heated process, and second valve 9 is in closed condition.
During ice-melt, first valve 7 is closed, and second valve 9 is opened, the circulation between circulating pump 8, heat exchanger 4, second valve 9, ice-melt tube bank 11, water tank 6 of the hot water in the water tank 6, ice-melt in the ice-melt jar 10 of flowing through is restrained and was emitted heat at 11 o'clock, gives the heating of the water in the ice-melt jar 10; And the coolant-temperature gage in the ice-melt tube bank 11 descends, and constantly is heated in heat exchanger 4 again.Ice-melt jar 10 links to each other with cold-trap 1 by water lines 16 and ice-melt valve 14, and ice-melt jar 10 is in vacuum state, and the water in the ice-melt jar 10 is heated the back and produces about 15～25 ℃ negative pressure steam.Adopt two or more cold-traps, other cold-trap guarantees the continuity of dry run during cold-trap ice-melt therein.When a cold-trap needs ice-melt, its with ice-melt jar 10 between in the water lines 16 corresponding ice-melt valve 14 open, negative pressure steam enters this cold-trap, and with the ice-out Cheng Shui in this cold-trap tube bank, the water of the thawing ice-melt valve 14 in this water lines 16 again flows back to ice-melt jar 10.Ice-melt jar 10 is equipped with liquid level gauge 13, when the water in the ice-melt jar 10 reaches designated water level (being liquid level gauge 13 height), can guarantee that the water level in the ice-melt jar 10 remains at the level of setting, does not consume extra water by outside ice-melt draining pump 12 drain tanks.
Claims (9)
1. energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap, comprise cold-trap, choke valve or expansion valve, condenser, refrigeration compressor and ice-melt jar, it is characterized in that: also comprise heat exchanger (4) and water tank (6), cold-trap (1) links to each other with refrigeration compressor (5), heat exchanger (4) and condenser (3) successively by refrigerant line (15), and the refrigerant line (15) between condenser (3) and the cold-trap (1) is provided with choke valve or expansion valve (2); One branching pipe road (16) of heat exchanger (4) connects water tank (6) and circulating pump (8) successively, constitutes the circulation branch road with heat exchanger (4), another branching pipe road (16) of heat exchanger (4) connects ice-melt jar (10), water tank (6) and circulating pump (8) successively, constitutes the circulation branch road with heat exchanger (4); Ice-melt jar (10) links to each other with cold-trap (1) by water lines (16).
2. by the described energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap of claim 1, it is characterized in that: go up on described heat exchanger (4) one branching pipe roads (16), be provided with first valve (7) between heat exchanger (4) and the water tank (6).
3. by the described energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap of claim 1, it is characterized in that: go up on another branching pipe road (16) of described heat exchanger (4), be provided with second valve (9) between heat exchanger (4) and the ice-melt jar (10).
4. by the described energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap of claim 1, it is characterized in that: be provided with the ice-melt tube bank (11) that is connected with the import and export of water lines respectively in the described ice-melt jar (10).
5. by the described energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap of claim 1, it is characterized in that: on the described ice-melt jar (10) liquid level gauge is installed.
6. by the described energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap of claim 1, it is characterized in that: the discharge pipe line of described ice-melt jar (10) is provided with ice-melt draining pump (12).
7. by the described energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap of claim 1, it is characterized in that: described ice-melt jar (10) is provided with ice-melt valve (14) with the water lines (16) of cold-trap (1).
8. by the described energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap of claim 1, it is characterized in that: described cold-trap (1) is two or more.
9. by the described energy-conservation ice melting system that is used for the ice-melt of freeze-drier cold-trap of claim 1, it is characterized in that: the interior gas of cold-trap (1) that described ice-melt jar (10) enters ice-melt is negative pressure steam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202323445U CN201361466Y (en) | 2008-12-30 | 2008-12-30 | Energy-saving ice-melting system for cold trap ice melting of freeze-drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202323445U CN201361466Y (en) | 2008-12-30 | 2008-12-30 | Energy-saving ice-melting system for cold trap ice melting of freeze-drying device |
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| CN201361466Y true CN201361466Y (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202323445U Expired - Fee Related CN201361466Y (en) | 2008-12-30 | 2008-12-30 | Energy-saving ice-melting system for cold trap ice melting of freeze-drying device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102197859A (en) * | 2010-03-24 | 2011-09-28 | 陈万仁 | Freeze-drying device with multistage energy recycling function |
| CN102620550A (en) * | 2012-04-27 | 2012-08-01 | 王海军 | System and method for recovering and utilizing waste heat of freeze drier |
| CN106679338A (en) * | 2015-07-13 | 2017-05-17 | 株式会社爱发科 | Vacuum drying apparatus and vacuum drying method |
| CN107990635A (en) * | 2016-10-27 | 2018-05-04 | 上海浦东冷冻干燥设备有限公司 | A kind of vacuum freezing drying device and method |
| CN108151386A (en) * | 2017-12-22 | 2018-06-12 | 台州龙江化工机械科技有限公司 | A kind of refrigeration system and operating method of brine ice making |
| CN108981292A (en) * | 2018-06-15 | 2018-12-11 | 上海工程技术大学 | A kind of freeze dryer energy conserving system and operation method using solar energy absorption type refrigeration |
| CN109323536A (en) * | 2018-11-15 | 2019-02-12 | 浙江冠峰食品机械有限公司 | A kind of vacuum freeze drier |
| CN111365875A (en) * | 2020-05-26 | 2020-07-03 | 华东交通大学 | Pharmaceutical factory sewage source mechanical refrigeration cold-trap system |
| CN111457683A (en) * | 2020-05-19 | 2020-07-28 | 烟台大学 | Novel waste heat and condensed water recovery freeze dryer and operation method thereof |
| CN114923314A (en) * | 2022-03-07 | 2022-08-19 | 上海工程技术大学 | Freeze dryer energy-saving system utilizing solar energy and condensation heat |
| CN115479452A (en) * | 2022-10-12 | 2022-12-16 | 烟台绿冷热能科技有限公司 | Vacuum freeze-drying system and control method |
-
2008
- 2008-12-30 CN CNU2008202323445U patent/CN201361466Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102197859A (en) * | 2010-03-24 | 2011-09-28 | 陈万仁 | Freeze-drying device with multistage energy recycling function |
| CN102620550A (en) * | 2012-04-27 | 2012-08-01 | 王海军 | System and method for recovering and utilizing waste heat of freeze drier |
| CN106679338A (en) * | 2015-07-13 | 2017-05-17 | 株式会社爱发科 | Vacuum drying apparatus and vacuum drying method |
| CN107990635A (en) * | 2016-10-27 | 2018-05-04 | 上海浦东冷冻干燥设备有限公司 | A kind of vacuum freezing drying device and method |
| CN108151386B (en) * | 2017-12-22 | 2020-12-11 | 台州龙江化工机械科技有限公司 | Refrigerating system for making ice by brine and operation method |
| CN108151386A (en) * | 2017-12-22 | 2018-06-12 | 台州龙江化工机械科技有限公司 | A kind of refrigeration system and operating method of brine ice making |
| CN108981292A (en) * | 2018-06-15 | 2018-12-11 | 上海工程技术大学 | A kind of freeze dryer energy conserving system and operation method using solar energy absorption type refrigeration |
| CN108981292B (en) * | 2018-06-15 | 2021-04-20 | 上海工程技术大学 | Energy-saving system of freeze dryer utilizing solar absorption refrigeration and operation method |
| CN109323536A (en) * | 2018-11-15 | 2019-02-12 | 浙江冠峰食品机械有限公司 | A kind of vacuum freeze drier |
| CN111457683A (en) * | 2020-05-19 | 2020-07-28 | 烟台大学 | Novel waste heat and condensed water recovery freeze dryer and operation method thereof |
| CN111457683B (en) * | 2020-05-19 | 2023-06-02 | 烟台大学 | Novel waste heat and condensate recovery freeze dryer and operation method thereof |
| CN111365875A (en) * | 2020-05-26 | 2020-07-03 | 华东交通大学 | Pharmaceutical factory sewage source mechanical refrigeration cold-trap system |
| CN114923314A (en) * | 2022-03-07 | 2022-08-19 | 上海工程技术大学 | Freeze dryer energy-saving system utilizing solar energy and condensation heat |
| CN114923314B (en) * | 2022-03-07 | 2023-04-28 | 上海工程技术大学 | Freeze dryer energy-saving system utilizing solar energy and condensation heat |
| CN115479452A (en) * | 2022-10-12 | 2022-12-16 | 烟台绿冷热能科技有限公司 | Vacuum freeze-drying system and control method |
| CN115479452B (en) * | 2022-10-12 | 2024-03-22 | 烟台绿冷热能科技有限公司 | Vacuum freeze-drying system and control method |
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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 |
Granted publication date: 20091216 Termination date: 20171230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |