CN201764744U - Water-cooled low-temperature aqueous solution unit - Google Patents
Water-cooled low-temperature aqueous solution unit Download PDFInfo
- Publication number
- CN201764744U CN201764744U CN2010202675579U CN201020267557U CN201764744U CN 201764744 U CN201764744 U CN 201764744U CN 2010202675579 U CN2010202675579 U CN 2010202675579U CN 201020267557 U CN201020267557 U CN 201020267557U CN 201764744 U CN201764744 U CN 201764744U
- Authority
- CN
- China
- Prior art keywords
- compressor
- water
- condenser
- solution unit
- low
- 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 - Lifetime
Links
Landscapes
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
Abstract
The utility model discloses a water-cooled low-temperature aqueous solution unit, which is used for providing cold sources for purposes such as low-temperature cold storage, low-temperature environment experiments, and the like, and can well improve the energy-saving effect. The aqueous solution unit comprises a circulation loop formed by a compressor, a condenser, a throttle device and an evaporator, wherein the compressor adopts a semi-closed twin-screw compressor. Compared with an open screw compressor or a piston compressor, the semi-closed twin-screw compressor has the characteristics of simple structure, good sealing performance, low noise, more reliable and steadier operation, longer service life, and the like, thereby reducing energy consumption of the unit system and prolonging the service life thereof; and as an oil separator is arranged, the content of refrigerants entering a heat exchanger can be guaranteed to be kept above 99.7 percent, thereby reducing the negative influence of oil on the heat exchange effect and improving the energy efficiency. The aqueous solution unit is suitable for being popularized and applied in fields such as food preservation, medicine cold-storage, low-temperature environment experiments, and the like.
Description
Technical field
The utility model relates to a kind of cryogenic freezing refrigeration unit, especially relates to a kind of water-cooled water at low temperature solution unit that low-temperature receiver is provided for purposes such as deepfreeze, low temperature environment experiments.
Background technology
At present, cryogenic freezing refrigeration unit has obtained utilization widely as the main frame of applications such as food fresh keeping, medicine refrigeration, low temperature environment experiment.For water at low temperature solution is provided, traditional cryogenic freezing refrigeration unit selects for use open type helical-lobe compressor or piston compressor that power is provided, not only fault rate height, easily leakage, and energy consumption height, complicated operation.
The utility model content
Technical problem to be solved in the utility model provides a kind of energy-saving effect water-cooled water at low temperature solution unit preferably.
The technical scheme that its technical problem that solves the utility model adopts is: water-cooled water at low temperature solution unit, comprise the closed circuit that compressor, condenser, throttling arrangement and evaporimeter form, and described compressor adopts semiclosed double-screw compressor.
Further be between compressor and condenser, to be provided with oil eliminator.
Further be, between condenser and compressor, be provided with oil cooler, have cooling water circulation loop and fluid closed circuit in the described oil cooler, the cooling water inlet of oil cooler connects the coolant outlet of condenser, the coolant outlet of oil cooler connects the cooling water inlet of condenser, the fluid inlet of oil cooler connects the fluid outlet of compressor, and the fluid outlet of oil cooler connects the fluid inlet of compressor.
Further be that described compressor is electrically connected with control system.
Further be between condenser and throttling arrangement, to be provided with the device for drying and filtering of removable renew cartridge.
The beneficial effects of the utility model are: the semiclosed double-screw compressor of employing is compared with open type helical-lobe compressor or piston compressor, semi-hermetic screw compressor has simple in structure, good airproof performance, characteristics such as noise is low, move more reliable steadily, the characteristics of longer service life, therefore, can reduce the energy consumption of machine set system, and can improve service life; And the setting of oil eliminator can guarantee that the refrigerant content that enters heat exchanger remains on more than 99.7%, reduces the negative effect of oily heat exchanging effect, improves efficiency; The setting of oil cooler can be cooled off the high temperature refrigeration oil in the compressor, and to guarantee the cooling of refrigeration oil to compressor inner structure part, apply in the fields such as food fresh keeping, medicine refrigeration, low temperature environment experiment that are adapted at.
Description of drawings
Fig. 1 is a system works schematic diagram of the present utility model.
Be labeled as among the figure: compressor 1, condenser 2, throttling arrangement 3, evaporimeter 4, oil eliminator 5, oil cooler 6, control system 7, device for drying and filtering 8.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
As shown in Figure 1, water-cooled water at low temperature solution unit of the present utility model comprises the closed circuit that compressor 1, condenser 2, throttling arrangement 3 and evaporimeter 4 form, and described compressor 1 adopts semiclosed double-screw compressor.Semiclosed double-screw compressor is compared with open type helical-lobe compressor or piston compressor, semi-hermetic screw compressor has simple in structure, good airproof performance, characteristics such as noise is low, move more reliable steadily, the characteristics of longer service life, therefore, can reduce the energy consumption of machine set system, and can improve service life.
For satisfying the low temperature requirement of food fresh keeping in the freezer or medical medicine refrigeration, be in particular the low temperature requirement of the various variable work condition tests that satisfy in the environmental simulation test, the low-temperature receiver in-30～-5 ℃ of scopes need be provided.The evaporating temperature of unit can be regulated within the specific limits.And along with the variation of evaporating temperature, the built-in volumetric ratio of compressor 1 will change, oil content also will be ensued variation in its steam, cause from the gaseous coolant that the built-in oil eliminator of compressor 1 comes out, containing certain refrigeration oil, and, between compressor 1 and condenser 2, be provided with oil eliminator 5 in order to separate this refrigeration oil.The setting of oil eliminator 5, remaining refrigeration oil in the gaseous coolant that separable compressor 1 built-in oil eliminator comes out guarantees that the refrigerant content that enters heat exchanger remains on more than 99.7%, reduces the negative effect of oily heat exchanging effect, improves efficiency.Simultaneously, the refrigeration oil that oil eliminator 5 is separated utilizes that compressor 1 is inhaled, the pressure reduction of exhaust outlet, gets back to compressor 1 middle part off and on or enters oil groove in the compressor 1 from compressor 1 air entry.
The variation of evaporating temperature; make compressor 1 interior compression ratio strengthen; delivery temperature rises; limiting case may cause the action of delivery temperature protection switch; therefore; need be to the fluid in the compressor 1; bearing and motor etc. cool off; and in order to reach effective; cooling effect easily; between condenser 2 and compressor 1, be provided with oil cooler 6; have cooling water circulation loop and fluid closed circuit in the described oil cooler 6; the cooling water inlet of oil cooler 6 connects the coolant outlet of condenser 2; the coolant outlet of oil cooler 6 connects the cooling water inlet of condenser 2; the fluid inlet of oil cooler 6 connects the fluid outlet of compressor 1, and the fluid outlet of oil cooler 6 connects the fluid inlet of compressor 1.During work, refrigeration oil in the compressor 1 is incorporated into circulation in the oil cooler 6, and the condensed water of condenser 2 also is incorporated into circulation in the oil cooler 6, in this cyclic process, in cooled refrigeration oil is got back to compressor 1 bearing in the compressor 1, motor etc. are cooled off, condensed water is then got back to condenser 2.And, can adopt liquid refrigerants that compressor 1 is carried out the hydrojet cooling in order to reach better cooling effect.The hydrojet condition be the oil temperature of refrigeration oil greater than 85 ℃ (they being that oily temperature begins hydrojet when being higher than 85 ℃), the recovery condition is that the oil temperature of refrigeration oil is less than 78 ℃ (being that oily temperature stops hydrojet when being lower than 78 ℃).
For making compressor 1 as often as possible be operated in the zone of high energy efficiency, described compressor 1 is electrically connected with control system 7.The temperature of control system 7 by in the system that records food fresh keeping, medicine being refrigerated, the work of control compressor 1, realize the operation of level Four capacity regulating or make the efficient of compressor 1 force to be controlled at 75～100% section operations, make efficiency higher, save operating cost to greatest extent, can realize full-automatic energy-saving control and intellectualized operation, realize unmanned.
The refrigeration system planted agent of the utility model water-cooled water at low temperature solution unit stops moisture, should guarantee in manufacture process dry, the pure refrigerant.At the acidic materials in the system, moisture etc., between condenser 2 and throttling arrangement 3, be provided with the device for drying and filtering 8 of removable renew cartridge, utilize 8 pairs of acidic materials of device for drying and filtering, moisture etc. to filter Moisture high UCL in system, should be in time renew cartridge more, in case the generation of the stifled phenomenon of stagnant ice.
Claims (5)
1. water-cooled water at low temperature solution unit comprises the closed circuit that compressor (1), condenser (2), throttling arrangement (3) and evaporimeter (4) form, and it is characterized in that: described compressor (1) adopts semiclosed double-screw compressor.
2. water-cooled water at low temperature solution unit as claimed in claim 1 is characterized in that: be provided with oil eliminator (5) between compressor (1) and condenser (2).
3. water-cooled water at low temperature solution unit as claimed in claim 2, it is characterized in that: between condenser (2) and compressor (1), be provided with oil cooler (6), have cooling water circulation loop and fluid closed circuit in the described oil cooler (6), the cooling water inlet of oil cooler (6) connects the coolant outlet of condenser (2), the coolant outlet of oil cooler (6) connects the cooling water inlet of condenser (2), the fluid inlet of oil cooler (6) connects the fluid outlet of compressor (1), and the fluid outlet of oil cooler (6) connects the fluid inlet of compressor (1).
4. as claim 1,2 or 3 described water-cooled water at low temperature solution units, it is characterized in that: described compressor (1) is electrically connected with control system (7).
5. water-cooled water at low temperature solution unit as claimed in claim 4 is characterized in that: the device for drying and filtering (8) that is provided with removable renew cartridge between condenser (2) and throttling arrangement (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202675579U CN201764744U (en) | 2010-07-22 | 2010-07-22 | Water-cooled low-temperature aqueous solution unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202675579U CN201764744U (en) | 2010-07-22 | 2010-07-22 | Water-cooled low-temperature aqueous solution unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764744U true CN201764744U (en) | 2011-03-16 |
Family
ID=43717353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202675579U Expired - Lifetime CN201764744U (en) | 2010-07-22 | 2010-07-22 | Water-cooled low-temperature aqueous solution unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764744U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313393A (en) * | 2011-10-19 | 2012-01-11 | 周兆龙 | Steam-energy water heating machine |
-
2010
- 2010-07-22 CN CN2010202675579U patent/CN201764744U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313393A (en) * | 2011-10-19 | 2012-01-11 | 周兆龙 | Steam-energy water heating machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102141322B (en) | Absorption-mechanical compression coupling refrigeration and cold accumulation system | |
| CN200990845Y (en) | Defrosting-free fruit-vegetable precooling, storing fresh reservation facility | |
| CN102353205B (en) | Refrigeration equipment | |
| CN103075831B (en) | Novel air-cooled evaporation type composite refrigeration house refrigerating system | |
| CN101261024A (en) | Heat moisture segmental processing air-conditioning unit device and its air-treatment method | |
| CN104344479B (en) | A kind of cold storage energy-saving air conditioning system and its operation method | |
| CN105202804A (en) | Adsorption and vapor compression cascade type refrigeration device and control method thereof | |
| CN104214873A (en) | Thermal pump driving solution dehumidifying device and method based on graded utilization of condensation heat | |
| CN202630556U (en) | Fridge with function of quick cooling | |
| CN204987335U (en) | Refrigerated water type computer lab air conditioner of fluorine pump dual cycle nature cold source cold -storage system | |
| CN1288397C (en) | Air compressor with energy storage and refrigeration function | |
| CN204202062U (en) | With the water-cooled cooling water air conditioner unit of ice-reserving function | |
| CN201764744U (en) | Water-cooled low-temperature aqueous solution unit | |
| CN105066310A (en) | Chilled water type machine room air conditioner of fluorine pump double-circulation natural cold source cold storage system | |
| CN103129573A (en) | Stepless adjustable load variable air rate directly-evaporative type air conditioner special for urban railway transit | |
| CN113375382B (en) | System for preparing fluid ice by dehumidification and evaporation of rotating wheel driven by transcritical carbon dioxide heat pump | |
| CN202928184U (en) | A screw water chilling unit with a gravity self-circulation oil cooler | |
| CN205026991U (en) | Adsorb with vapor compression overlapping formula refrigerating plant and contain its air conditioner | |
| CN213984106U (en) | Carbon dioxide refrigeration air-conditioning system | |
| CN102506481A (en) | Air conditioner and refrigerator combined device | |
| CN112524832A (en) | Novel air-conditioning refrigeration system adopting carbon dioxide for refrigeration | |
| CN205919545U (en) | Cold chain and cold -storage coupled system | |
| CN110686345A (en) | Efficient building refrigerating machine room and control method thereof | |
| CN106765916B (en) | Temperature control system and temperature control method | |
| CN205718035U (en) | Integral type screw rod Cool-water Machine for Industry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |
|
| CX01 | Expiry of patent term |