CN202393073U - Refrigerating system for ultra-low-temperature refrigerated storages - Google Patents
Refrigerating system for ultra-low-temperature refrigerated storages Download PDFInfo
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- CN202393073U CN202393073U CN2011205502398U CN201120550239U CN202393073U CN 202393073 U CN202393073 U CN 202393073U CN 2011205502398 U CN2011205502398 U CN 2011205502398U CN 201120550239 U CN201120550239 U CN 201120550239U CN 202393073 U CN202393073 U CN 202393073U
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Abstract
The utility model discloses a refrigerating system for ultra-low-temperature refrigerated storages, which comprises a two-stage refrigerating compressor, an oil separator, an oil cold exchange plate, an economizer, a reservoir, an electromagnetic valve, an expansion valve, an air cooler, a condenser, a heat regenerator and a siphon tank which are connected by pipes, wherein an exhaust outlet of a refrigerating compressor unit is connected with an oil feed inlet, an oil discharge outlet is connected to an inlet of the condenser, a liquid outlet of the condenser is connected with the siphon tank, an outlet pipe of the siphon tank is connected with the oil cold exchange plate, the outlet pipe of the siphon tank is connected with the economizer and is connected with the reservoir after being cooled, an outlet of the reservoir is connected with the heat regenerator, a high pressure liquid line is connected with an inlet of the electromagnetic valve, an outlet of the electromagnetic valve is connected with an inlet of the expansion valve, an outlet of the expansion valve is connected with a liquid inlet of the air cooler, a return air outlet of the air cooler is connected with an inlet of the heat regenerator, and an outlet of the heat regenerator is connected with an air suction port of the two-stage refrigerating compressor. The refrigerating system disclosed by the utility model has the advantages of low refrigeration temperature, high safety, remarkable energy saving effect, complete defrosting, and capability of reducing the filling quantity of a refrigerant and the accessory equipment of the system.
Description
Technical field
The utility model belongs to refrigeration technology field, relates in particular to ultra low temperature cool house and uses refrigeration system, is specially adapted to-55～-60 ℃ of ultralow temperature freezer refrigeration systems.
Background technology
Domestic ultra low temperature cool house adopts the ammonia pump refrigeration system more, or the cascade refrigeration system of freon.Existing ammonia refrigeration system deficiency is that ammonia is inflammable and explosive, has penetrating odor, and security is relatively poor; Cascade refrigeration system complex, appurtenances are more, are prone to form reveal and vibration hidden danger; Device therefor all is to decide the frequency unit, can not realize stepless energy adjustment, is unfavorable for energy saving of system; Evaporimeter adopts comb more, has not only increased the charging amount of cold-producing medium, and has increased the load-bearing of building, and engineering cost is risen.
Summary of the invention
The purpose of the utility model is to propose a kind of energy-efficient, refrigeration system that can satisfy-55～-60 ℃ of ultra low temperature cool house temperature requirements.To solve the deficiency that prior art exists.
The technical scheme that the utility model adopted is: a kind of ultra low temperature cool house is used refrigeration system; Comprise the refrigeration unit, magnetic valve, expansion valve, air-cooler and the condenser that connect through pipeline; Refrigeration unit comprises that the two-stage refrigeration compressor, oil eliminator, the oil cooling plate that connect through pipeline change, economizer and reservoir, it is characterized in that said ultra low temperature cool house also comprises regenerator and Siphon pot with refrigeration system; Said refrigeration compressor set air exit connects the oil content inlet, and the oil content outlet inserts condenser inlet, and the condenser liquid outlet is connected with Siphon pot; The Siphon pot outlet changes with the oil cooling plate and is connected, and the Siphon pot outlet is connected with economizer, passes through cold back and is connected with reservoir; The reservoir outlet is connected with regenerator; High-pressure liquid line is connected with electromagnetic valve entrance, and electromagnetic valve outlet connects the expansion valve inlet, and the expansion valve outlet is connected with the liquid inlet of air-cooler; The return-air outlet of air-cooler is connected with the regenerator inlet, and the regenerator outlet is connected with two-stage refrigeration compressor air suction mouth.
The said a kind of ultra low temperature cool house of the utility model is used refrigeration system; It is characterized in that said two-stage refrigeration compressor is a twin-stage frequency conversion screw unit, use R22 or R404A working medium, adopt converter technique; Energy-efficient, the twin-stage compression can realize evaporating temperature-65～-70 degree.
The said a kind of ultra low temperature cool house of the utility model is used refrigeration system, it is characterized in that said air-cooler as evaporimeter, disposes return air cover and defrosting baffle plate, answers electricity consumption defrosting technology, can guarantee good defrosting, and air-cooler adopts low temperature to use motor.
The said a kind of ultra low temperature cool house of the utility model is used refrigeration system, it is characterized in that said expansion valve is the heating power expansion valve of the too high control of B series band evaporating pressure, is the direct expansion vapo(u)rization system.
System is provided with regenerator, can effectively prevent liquid hammer and carry out cold to feed flow liquid.
System is provided with Siphon pot, utilizes siphonic effect to reduce oil temperature, favourable energy saving of system.
System selects 09MnNiD steel pipe or copper pipe for use with piping material, can satisfy the low temperature requirement.
The utlity model has following advantage:
(1) system configuration twin-stage frequency conversion screw unit adopts the R22 cold-producing medium, has safe and efficient characteristics
(2) system configuration air-cooler and return air cover, defrosting shutter adopt electric defrosting, and it is simple to have system, and defrosting is advantage completely.
(3) system selects the direct expansion vapo(u)rization system for use, has reduced charging amount and system's auxiliary device of cold-producing medium.
(4) system configuration regenerator effectively prevents liquid hammer and increases the feed flow degree of supercooling.
Description of drawings
The utility model has two width of cloth accompanying drawings, wherein
Fig. 1 is the utility model overall structure sketch map;
Fig. 2 is the utility model unit internal structure sketch map;
Among the figure: 1, Siphon pot, 2, condenser, 3, air-cooler, 4, expansion valve, 5, magnetic valve, 6, twin-stage frequency conversion screw unit, 7, regenerator, 8, compressor, 9, oil eliminator, 10, the oil cooling plate changes, 11, economizer, 12, reservoir.13, Siphon pot centre exit pipe 14, Siphon pot outlet at bottom pipe.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
System comprises refrigeration unit 6, magnetic valve 5, expansion valve 4, air-cooler 3 and the condenser 2 that connects through pipeline; Refrigeration unit 6 comprises that the two-stage refrigeration compressor 8, oil eliminator 9, the oil cooling plate that connect through pipeline change 10, economizer 11 and reservoir 12, and system also comprises regenerator 7 and Siphon pot 1; Refrigeration compressor set 6 air exits connect oil content 9 inlets, and oil content 9 outlets insert condenser 2 inlets, and condenser 2 liquid outlets are connected with Siphon pot 1; Siphon pot 1 outlet 14 changes 10 with the oil cooling plate and is connected, and Siphon pot 1 outlet 13 is connected with economizer 11, passes through cold back and is connected with reservoir 12; Reservoir 12 outlets are connected with regenerator 7; High-pressure liquid line is connected with magnetic valve 5 inlets, and magnetic valve 5 outlets connect expansion valve 4 inlets, and expansion valve 4 outlets are connected with the liquid inlet of air-cooler 3; The return-air outlet of air-cooler 3 is connected with regenerator 7 inlets, and regenerator 7 outlets are connected with two-stage refrigeration compressor 8 air entries.Two-stage refrigeration compressor 8 is twin-stage frequency conversion screw units, and the evaporating temperature of two-stage refrigeration compression is-65～-70 degree.Refrigeration system is used R22 or R404A working medium.Air-cooler disposes return air cover and defrosting baffle plate.Expansion valve is the heating power expansion valve of the too high control of B series band evaporating pressure.
The first cooling of low-temperature cold store should progressively be lowered the temperature on a time period.Must not lower the temperature every day above 3 ℃, when the storehouse temperature drops to 4 ℃, kept 3～4 days, and then continue cooling.
Stock up the initial stage at freezer, the blower fan frosting is more, needs defrosting in 1～2 day once, and after the stable use of freezer, the rate of replenishing is lower, and the number of times of defrosting can be set at just passable weekly.
The above; Be merely the preferable specific embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technical staff who is familiar with the present technique field is equal to replacement or change according to technical scheme of the present invention and inventive concept thereof in the technical scope that the present invention discloses, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a ultra low temperature cool house is used refrigeration system; Comprise the refrigeration unit (6), magnetic valve (5), expansion valve (4), air-cooler (3) and the condenser (2) that connect through pipeline; Refrigeration unit (6) comprises that the two-stage refrigeration compressor (8), oil eliminator (9), the oil cooling plate that connect through pipeline change (10), economizer (11) and reservoir (12), is characterized in that said ultra low temperature cool house also comprises regenerator (7) and Siphon pot (1) with refrigeration system; Said refrigeration compressor set (6) air exit connects oil content (9) inlet; Oil content (9) outlet inserts condenser (2) inlet, and condenser (2) liquid outlet is connected with Siphon pot (1), and Siphon pot (1) outlet (14) changes (10) with the oil cooling plate and is connected; Siphon pot (1) outlet (13) is connected with economizer (11); Passed through cold back and be connected with reservoir (12), reservoir (12) outlet is connected with regenerator (7), and high-pressure liquid line is connected with magnetic valve (5) inlet; Magnetic valve (5) outlet connects expansion valve (4) inlet; Expansion valve (4) outlet is connected with the liquid inlet of air-cooler (3), and the return-air outlet of air-cooler (3) is connected with regenerator (7) inlet, and regenerator (7) outlet is connected with two-stage refrigeration compressor (8) air entry.
2. a kind of ultra low temperature cool house according to claim 1 is used refrigeration system, it is characterized in that said two-stage refrigeration compressor (8) is a twin-stage frequency conversion screw unit, and the evaporating temperature of two-stage refrigeration compression is-65～-70 degree.
3. a kind of ultra low temperature cool house according to claim 1 is used refrigeration system, it is characterized in that said refrigeration system application R22 or R404A working medium.
4. a kind of ultra low temperature cool house according to claim 1 is used refrigeration system, it is characterized in that said air-cooler disposes return air cover and defrosting baffle plate.
5. a kind of ultra low temperature cool house according to claim 1 is used refrigeration system, it is characterized in that said expansion valve is the heating power expansion valve of the too high control of B series band evaporating pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205502398U CN202393073U (en) | 2011-12-24 | 2011-12-24 | Refrigerating system for ultra-low-temperature refrigerated storages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205502398U CN202393073U (en) | 2011-12-24 | 2011-12-24 | Refrigerating system for ultra-low-temperature refrigerated storages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202393073U true CN202393073U (en) | 2012-08-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205502398U Expired - Lifetime CN202393073U (en) | 2011-12-24 | 2011-12-24 | Refrigerating system for ultra-low-temperature refrigerated storages |
Country Status (1)
| Country | Link |
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| CN (1) | CN202393073U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103688690A (en) * | 2013-12-10 | 2014-04-02 | 河南工业大学 | Large-size automatic low-temperature granary with evaporative cooling system |
| CN111043802A (en) * | 2020-01-13 | 2020-04-21 | 上海海洋大学 | Single-machine two-stage refrigeration system monitoring software |
| CN111059810A (en) * | 2020-01-14 | 2020-04-24 | 上海海洋大学 | Ultralow temperature refrigerating system and electronic expansion valve monitoring and control software |
-
2011
- 2011-12-24 CN CN2011205502398U patent/CN202393073U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103688690A (en) * | 2013-12-10 | 2014-04-02 | 河南工业大学 | Large-size automatic low-temperature granary with evaporative cooling system |
| CN111043802A (en) * | 2020-01-13 | 2020-04-21 | 上海海洋大学 | Single-machine two-stage refrigeration system monitoring software |
| CN111059810A (en) * | 2020-01-14 | 2020-04-24 | 上海海洋大学 | Ultralow temperature refrigerating system and electronic expansion valve monitoring and control software |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: PANASONIC APPLIANCES COMPRESSOR (DALIAN) CO., LTD. Free format text: FORMER NAME: DALIAN SANYO COMPRESSOR CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 116600 Dalian economic and Technological Development Zone, Liaoning Pine Street, No. 8 Patentee after: Panasonic's compressor (Dalian) Co., Ltd Address before: 116033, No. 8 Song Lan street, Dalian economic and Technological Development Zone, Liaoning, China Patentee before: Dalian Sanyo Compressor Co., Ltd. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170126 Address after: 116600 Dalian economic and Technological Development Zone, Liaoning Pine Street, No. 8 Patentee after: Matsushita refrigeration system (Dalian) Co., Ltd. Address before: 116600 Dalian economic and Technological Development Zone, Liaoning Pine Street, No. 8 Patentee before: Panasonic's compressor (Dalian) Co., Ltd |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120822 |