Refrigeration – Automatic control – Diverse – cascade or compound refrigeration-producing system
Patent
1998-11-18
2000-10-17
Wayner, William
Refrigeration
Automatic control
Diverse, cascade or compound refrigeration-producing system
165208, F24F 300, F25B 700
Patent
active
061314013
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a refrigerating system applicable to a supermarket or the like requiring various types of temperature environments.
BACKGROUND ART
A chilling showcase applicable to a supermarket or the like has conventionally been known as disclosed in Japanese Laid-Open Publication No. 62-94785, for example. A showcase of such a type includes a refrigerating system in which a compressor, a condenser, an expansion valve and an evaporator are connected via a refrigerant pipe. The showcase includes not only a display stand for foods but also an air passage for circulating the air into/from the display stand. The evaporator is installed in the air passage.
When the refrigerating system is driven, a refrigerant discharged from the compressor is condensed in the condenser and then the pressure of the refrigerant is reduced by the expansion valve. Subsequently, the refrigerant exchanges heat in the evaporator with the air flowing through the air passage and is evaporated, thereby cooling the air. The cooled air is supplied through the air passage to the display stand, thereby keeping the temperature of the foods at a predetermined low temperature. Such a refrigerating system can keep the foods fresh.
In addition, a supermarket is usually equipped with an air-conditioning system for conditioning the air in an in-store selling area and an employees' office. Such an air-conditioning system is constructed by connecting an outdoor unit placed outside of the store to an indoor unit placed on the ceiling or the like inside the store via a refrigerant pipe and the like. Heat is transported between the outdoor unit and the indoor unit, thereby cooling the air inside the store and the employees' office. The air-conditioning system can keep a comfortable air condition inside the store and the employees' office.
Problems to be Solved
As described above, a refrigerating system and an air-conditioning system have conventionally been provided separately for an area, such as a showcase, where foods are displayed and for an area, such as an in-store selling area and an employees' office, where persons are present, respectively. The refrigerating system and the air-conditioning system have provided appropriate environments required for the respective areas. That is to say, the refrigerating system and the air-conditioning system have heretofore been totally independent of each other.
Thus, it has conventionally been necessary to provide discrete heat sources for a refrigerating system and an air-conditioning system, respectively. More specifically, a condenser and the like need to be provided for a refrigerating system for a showcase and an outdoor unit needs to be provided for an air-conditioning system for conditioning the air inside a store. Accordingly, the freezer and air-conditioning systems required for a supermarket as a whole have been adversely complicated.
Moreover, spaces for housing various units constituting the respective heat sources have recently been required separately. Therefore, the spaces for disposing the freezer and air-conditioning systems have disadvantageously increased these days.
In view of the above-described conventional problems, the present invention has been devised in order to provide a refrigerating system, which can simultaneously condition by itself the air in various types of temperature environments in a supermarket or the like, can simplify the overall construction thereof and can reduce the required installation space.
DISCLOSURE OF INVENTION
In order to accomplish the above-described objective, according to the present invention, a single heat source unit is connected to a plurality of application units of a first type for forming a two-stage refrigerating cycle with the heat source unit and also connected to a plurality of application units of a second type for forming a one-stage refrigerating cycle with the heat source unit, and respectively different temperature environments are set by the application units of these two types.
Solutions
S
REFERENCES:
patent: 5108475 (1992-04-01), Briggs
patent: 5318104 (1994-06-01), Shah et al.
patent: 5335508 (1994-08-01), Tippmann
patent: 5447038 (1995-09-01), Vaynberg
Mezaki Takenori
Ueno Akitoshi
Daikin Industries Ltd.
Studebaker Donald R.
Wayner William
LandOfFree
Refrigerating system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Refrigerating system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Refrigerating system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-457767