CN204665730U - For the refrigeration unit of low ambient temperature - Google Patents
For the refrigeration unit of low ambient temperature Download PDFInfo
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- CN204665730U CN204665730U CN201520227139.XU CN201520227139U CN204665730U CN 204665730 U CN204665730 U CN 204665730U CN 201520227139 U CN201520227139 U CN 201520227139U CN 204665730 U CN204665730 U CN 204665730U
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Abstract
The utility model discloses a kind of refrigeration unit for low ambient temperature, the compressor of this refrigeration unit, condenser, expansion valve, evaporimeter to be connected formation refrigerating circuit successively by pipeline, condenser comprises housing and is located at the condenser pipe in housing, a partition panel is provided with in the inner chamber of housing, the inner chamber of condenser shell is separated into two independently chambers by partition panel, partition panel is provided with the hole passed through for condenser pipe, condenser pipe comprises the first condenser coil and second condenser coil of series connection, first condenser coil is arranged in the first chamber, evaporating type condensing mechanism is provided with in first chamber, the first chamber is made to form evaporating type condensing room, second condenser coil is the condenser coil with radiating fin, second condenser coil is arranged in the second chamber, the top of the second chamber is provided with the second blower fan, the second chamber is made to form air-cooled condensation chamber.The utility model can not freeze at low ambient temperatures, and annual high energy efficiency is run.
Description
Technical field
The utility model relates to, particularly a kind of refrigeration unit for low ambient temperature.
Background technology
Along with the raising of economic development and industrialized level, increasing industry needs year round cooling, needs the annual supply (as food, pharmacy, petrochemical factory etc.) keeping cryogenic freezing water.How accomplish that energy-efficient is a problem of air conditioner refrigerating industry for user's cooling with security and stability at any time.Accomplish that this point problem is little at warm area (as south China).And may lower than the region of zero degree (as northern China cold district) for outdoor temperature, for user's cooling at any time, will in the face of the problem in low ambient temperature in winter (low ambient temperature refers to that outdoor dry-bulb temperature is lower than subzero), this just needs to adopt refrigeration unit (refrigeration unit refers to can provide the refrigeration plant of constant temperature, constant current, constant pressure cryogenic water) to carry out cooling.Refrigeration unit at present for low ambient temperature mainly contains following two kinds:
The first is the refrigeration unit refrigeration adopting water-cooled or evaporative condenser, as adopted the supporting outdoor cooling tower refrigeration of water-cooling screw rod unit, or adopts evaporating type condensing screw water cooling machine set refrigeration etc.But the shortcoming of this refrigeration unit is, owing to adopting the refrigeration unit refrigeration of water-cooled or evaporative condenser, need to use outdoor water cooling tower or Water spray evaporative condenser, can run to high energy efficiency in summer for outdoor water cooling tower or Water spray evaporative condenser, if in the winter time under low ambient temperature, certain antifreezing measures must be taked, run as adopted water pump and cooling tower always and do not shut down, the flowing of cooling water is kept to prevent from freezing, for another example cooling tower or electrical heating set up by evaporative condenser and anti-icing fluid etc. of annotating in cooling water in the winter time prevents from freezing is adopted, power consumption and use cost were so both added, and easily cause equipment component to freeze because of misoperation, device damage is caused to freeze, poor reliability.
The second is the refrigeration unit refrigeration adopting air cooled condenser, as air-cooled screw machine, wind-cooling vortex machine etc.Adopt the refrigeration unit refrigeration of air cooled condenser, though without preventing freeze in winter problem, but its defect is, Energy Efficiency Ratio (COP) is low, energy consumption for cooling is far above same cold water chiller (with reference to GB50189-2005 " public building energy design standard " 5.4.5 bar regulation, declared working condition and the cold unit COP of Water Under are 3.8 ~ 5.1, and air-cooled unit COP is only 2.4 ~ 2.8), the annual fallback of this refrigeration unit, energy-saving effect extreme difference.
Therefore, being badly in need of exploitation one can not freeze at low ambient temperatures, and the refrigeration unit for low ambient temperature that annual high energy efficiency is run.
Summary of the invention
In view of this, the purpose of this utility model is to provide a kind of refrigeration unit for low ambient temperature, and the utility model can not freeze at low ambient temperatures, and annual high energy efficiency is run.
Refrigeration unit for low ambient temperature of the present utility model, comprise compressor, condenser, expansion valve, evaporimeter, described compressor, condenser, expansion valve, evaporimeter to be connected formation refrigerating circuit successively by pipeline, described condenser comprises housing and is located at the condenser pipe in housing, a partition panel is provided with in the inner chamber of described condenser shell, the inner chamber of condenser shell is separated into two independently chambers by this partition panel, described partition panel is provided with the hole passed through for condenser pipe, described condenser pipe comprises the first condenser coil and second condenser coil of series connection, described first condenser coil is arranged in the first chamber, be provided with in described first chamber for the evaporating type condensing mechanism to condenses in the first condenser coil, the first chamber is made to form evaporating type condensing room, described second condenser coil is the condenser coil with radiating fin, described second condenser coil is arranged in the second chamber, the top of described second chamber is provided with for the second blower fan to the second condenser coil cooling, the second chamber is made to form air-cooled condensation chamber.
Further, the pipeline between described condenser and expansion valve is in series with device for drying and filtering.
Further, described evaporating type condensing mechanism comprises the first blower fan, water collection device, water knockout drum, water pump, header tank, described first blower fan is positioned at the top of the first chamber, described water collection device and water knockout drum are installed in the first chamber, wherein water collection device is positioned at the below of the first blower fan, water knockout drum is positioned at the below of water collection device, described header tank is arranged on the bottom of the first chamber, described first condenser coil is between water knockout drum and header tank, described water pump is positioned at outside the first chamber, the water inlet of this water pump is communicated with header tank, and the delivery port of water pump is communicated with water knockout drum.
Further, a sidewall of described first chamber is provided with the first cold dry air entrance with the first chamber, and a sidewall of described second chamber is provided with the second cold dry air entrance with the second chamber.
The beneficial effects of the utility model: the refrigeration unit for low ambient temperature of the present utility model, make condenser achieve winter or summer and run the automatic control pattern changed, first, cooling in summer unit will lean on the effect of evaporating type condensing room, by to shower water sweat cooling on the first condenser coil, and by air-cooled condensation chamber as a supplement or surplus, like this when outdoor temperature is higher than 5 DEG C, refrigeration unit is in the main high energy efficiency state by sweat cooling, achieves energy-conservation object.Secondly, winter is when outdoor temperature is lower than 5 DEG C, the evaporating type condensing room of refrigeration unit stops shower water, refrigeration unit is by the air-cooled refrigeration simultaneously of the second blower fan in the first blower fan in the evaporating type condensing room after cutting off the water supply and air-cooled condensation chamber, ensure that the condenser of refrigeration unit is in dry type, air-cooled state when low ambient temperature, fundamentally thoroughly solve the problem that refrigeration unit off-premises station freezes.In addition, because now outdoor temperature is low, the heat transfer temperature difference of condenser and air is large, and heat exchange efficiency is high, and refrigeration unit is fully shifted by condenser and make use of the cold in outdoor cold wind.Thus shower water sweat cooling when making this refrigeration unit achieve high temperature, air-cooled refrigeration during low temperature, reach the effect of dual-use, so both remain water evaporation for cooling unit eer high, the advantage of energy saving in running, achieves again air cooling chiller group and is not afraid of the advantage freezed, safe and reliable, take full advantage of the outdoor temperature difference, energy-efficient.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of condenser of the present utility model.
Detailed description of the invention
As shown in the figure: the refrigeration unit for low ambient temperature of the present embodiment, comprise compressor 1, condenser 2, expansion valve 4, evaporimeter 5, described compressor 1, condenser 2, expansion valve 4, evaporimeter 5 to be connected formation refrigerating circuit successively by pipeline.Described condenser 2 comprises housing and is located at the condenser pipe in housing, a partition panel 6 is provided with in the inner chamber of described condenser 2 housing, the inner chamber of condenser shell is separated into two independently chambers by this partition panel 6, described partition panel 6 is provided with the hole passed through for condenser pipe, described condenser pipe comprises the first condenser coil 71 and the second condenser coil 72 of series connection, described first condenser coil 71 is arranged in the first chamber 21, be provided with in described first chamber 21 for the evaporating type condensing mechanism to condenses in the first condenser coil 71, the first chamber 21 is made to form evaporating type condensing room, like this when outdoor environment temperature is higher than 0 DEG C, condenser 2 is mainly by the evaporating type condensing mechanism shower water sweat cooling in the first chamber 21, namely condensation heat is walked heat primarily of the water evaporator strip sprayed and forms kind of refrigeration cycle, for user provides cold water, refrigeration unit is made to be in high-effect state, achieve energy-conservation object, be suitable for using summer, described second condenser coil 72 is the condenser coil with radiating fin 72a, described second condenser coil 72 is arranged in the second chamber 22, the top of described second chamber 22 is provided with the second blower fan 8 for cooling the second condenser coil 72, the second chamber 22 is made to form air-cooled condensation chamber, like this when outdoor environment temperature is lower than 0 DEG C, first chamber 21 stops shower water, condenser 2 is by laying respectively at the second blower fan 8 air-cooled refrigeration simultaneously in the first blower fan 9 of evaporating type condensing mechanism in the first chamber 21 and the second chamber 22, namely condensation heat is taken away heat primarily of air sensible (its heat transfer temperature difference is large, good effect of heat exchange) and form kind of refrigeration cycle, for user provides cold water, the condenser of refrigeration unit is made to be in dry type when low ambient temperature, air-cooled state, fundamentally thoroughly solve the problem that refrigeration unit off-premises station freezes.
In the present embodiment, the pipeline between described condenser 2 and expansion valve 4 is in series with device for drying and filtering 3.
In the present embodiment, described evaporating type condensing mechanism comprises the first blower fan 9, water collection device 10, water knockout drum 11, water pump 12, header tank 13, described first blower fan 9 is positioned at the top of the first chamber 21, described water collection device 10 and water knockout drum 11 are arranged in the first chamber 21, wherein water collection device 10 is positioned at the below of the first blower fan 9, water knockout drum 11 is positioned at the below of water collection device 10, described header tank 13 is arranged on the bottom of the first chamber 21, described first condenser coil 71 is between water knockout drum 11 and header tank 13, described water pump 12 is positioned at outside the first chamber 21, the water inlet of this water pump 12 is communicated with header tank 13, the delivery port of water pump 12 is communicated with water knockout drum 11.
In the present embodiment, a sidewall of described first chamber 21 is provided with the first cold dry air entrance 14 be communicated with the first chamber 21, and a sidewall of described second chamber 22 is provided with the second cold dry air entrance 15 be communicated with the second chamber 22, for air circulation.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (4)
1. the refrigeration unit for low ambient temperature, comprise compressor, condenser, expansion valve, evaporimeter, described compressor, condenser, expansion valve, evaporimeter to be connected formation refrigerating circuit successively by pipeline, it is characterized in that: described condenser comprises housing and is located at the condenser pipe in housing, a partition panel is provided with in the inner chamber of described condenser shell, the inner chamber of condenser shell is separated into two independently chambers by this partition panel, described partition panel is provided with the hole passed through for condenser pipe, described condenser pipe comprises the first condenser coil and second condenser coil of series connection, described first condenser coil is arranged in the first chamber, be provided with in described first chamber for the evaporating type condensing mechanism to condenses in the first condenser coil, the first chamber is made to form evaporating type condensing room, described second condenser coil is the condenser coil with radiating fin, described second condenser coil is arranged in the second chamber, the top of described second chamber is provided with for the second blower fan to the second condenser coil cooling, the second chamber is made to form air-cooled condensation chamber.
2. the refrigeration unit for low ambient temperature according to claim 1, is characterized in that: the pipeline between described condenser and expansion valve is in series with device for drying and filtering.
3. the refrigeration unit for low ambient temperature according to claim 1, it is characterized in that: described evaporating type condensing mechanism comprises the first blower fan, water collection device, water knockout drum, water pump, header tank, described first blower fan is positioned at the top of the first chamber, described water collection device and water knockout drum are installed in the first chamber, wherein water collection device is positioned at the below of the first blower fan, water knockout drum is positioned at the below of water collection device, described header tank is arranged on the bottom of the first chamber, described first condenser coil is between water knockout drum and header tank, described water pump is positioned at outside the first chamber, the water inlet of this water pump is communicated with header tank, the delivery port of water pump is communicated with water knockout drum.
4. the refrigeration unit for low ambient temperature according to claim 1, it is characterized in that: a sidewall of described first chamber is provided with the first cold dry air entrance with the first chamber, a sidewall of described second chamber is provided with the second cold dry air entrance with the second chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227139.XU CN204665730U (en) | 2015-04-15 | 2015-04-15 | For the refrigeration unit of low ambient temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520227139.XU CN204665730U (en) | 2015-04-15 | 2015-04-15 | For the refrigeration unit of low ambient temperature |
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| Publication Number | Publication Date |
|---|---|
| CN204665730U true CN204665730U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520227139.XU Expired - Fee Related CN204665730U (en) | 2015-04-15 | 2015-04-15 | For the refrigeration unit of low ambient temperature |
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| CN (1) | CN204665730U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587498A (en) * | 2021-07-15 | 2021-11-02 | 浙江国祥股份有限公司 | Supercooling type efficient evaporative condenser |
-
2015
- 2015-04-15 CN CN201520227139.XU patent/CN204665730U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587498A (en) * | 2021-07-15 | 2021-11-02 | 浙江国祥股份有限公司 | Supercooling type efficient evaporative condenser |
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| 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: 20150923 Termination date: 20160415 |