CN101929778A

CN101929778A - Refrigeration equipment

Info

Publication number: CN101929778A
Application number: CN 201010275399
Authority: CN
Inventors: 李洲
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-08
Filing date: 2010-09-08
Publication date: 2010-12-29

Abstract

The invention discloses refrigeration equipment which comprises a condenser, an evaporator and a multisource load self-balancing type heat pump. The multisource load self-balancing type heat pump supplies stable hot circulation water and cold circulation water to a system, wherein the cold water of the multisource load self-balancing type heat pump is communicated with the condenser of the refrigeration equipment; the multisource load self-balancing type heat pump comprises a compressor, three heat exchangers, an expansion valve and an electromagnetic four-way valve, which are connected into a loop through pipes; the three heat exchangers are respectively positioned on the pipelines from the compressor to the electromagnetic four-way valve, from the electromagnetic four-way valve to the compressor and between the ports of the electromagnetic four-way valve. The refrigeration equipment of the invention greatly promotes the cooling efficiency and also has the effect of energy saving and emission reduction.

Description

A kind of refrigerating equipment

Technical field

The invention belongs to refrigeration technology field, particularly relate to a kind of refrigerating equipment.

Background technology

Refrigerating equipment is common cooking apparatus, promptly is the most general freezing and refrigerating equipment as domestic refrigerator.Indication of the present invention be relatively large refrigerating chamber and/or freezing chamber, generally be used for occasions such as hotel, dining room.

Heavy construction itself is the place of a high energy consumption, and only room temperature is regulated one, just needs to consume big energy; And the freezing and refrigeration in its food and drink department, also be the energy consumption rich and influential family who can't neglect, in order to allow the certain low temperature of the inner maintenance of refrigerator or refrigerator-freezer, its condenser needs heat radiation constantly, the heat that is come out then all enters surrounding enviroment, increases the thermic load that room temperature is regulated.And often in these occasions, use freezing, refrigerating equipment is very frequent, and is very high to the requirement of refrigerating capacity, thereby brings more thermic load.

Summary of the invention

The objective of the invention is to overcome above deficiency, a kind of more energy-conservation refrigerating equipment is provided.

The present invention has adopted following technical scheme: refrigerating equipment, comprise condenser and evaporimeter, it is characterized in that: it also comprises multi-source load self-balance type heat pump, for system provides stable circulating hot water and circulating water, the cold water of multi-source load self-balance type heat pump communicates with the condenser of refrigerating equipment;

Described multi-source load self-balance type heat pump is made up of a compressor, three heat exchangers, an expansion valve and a solenoid operated four-way valve, be linked as the loop by pipeline, three heat exchangers lay respectively at compressor between the solenoid operated four-way valve, solenoid operated four-way valve is to the pipeline between the compressor, between the port of solenoid operated four-way valve.

Further, also comprise a refrigerant-ethylene glycol heat exchanger on the refrigeration cycle of refrigerating equipment,, and link to each other with a tank with evaporator series or in parallel.

Multi-source load self-balance type heat pump of the present invention is a kind of more advanced heat-exchange device, based on heat pump principle, stable hot water (operated by rotary motion is at 45-55 ℃) and cold water (operated by rotary motion is at 7-12 ℃) can be provided simultaneously, can integrate cooling and heating load, the heat that the refrigeration duty the inside is shifted out satisfies the needs of thermic load, thereby realizes significantly energy-conservation.Its cold water is as the condensation heat radiation media of refrigerating equipment, because cold water temperature is lower than environment temperature and specific heat of water holds much larger than air, so its radiating effect is better than common air heat radiation, thereby the refrigeration system condensing pressure of freezing/refrigeration reduces significantly, make its working conditions of compressor improve, refrigerating capacity increases considerably and energy consumption decline.The cold that increases is stored in the ethylene glycol solution of above-mentioned tank by above-mentioned refrigerant-ethylene glycol heat exchanger.The start and stop of the air-cooled evaporator fan of freezing/cold storage refrigeration system will be decided by the temperature of freezing/refrigerating chamber, and the start and stop of eg pump are by temperature in the ethylene glycol tank.The compressor of freezing/cold storage refrigeration system is higher than set point in the temperature of freezing/refrigerating chamber, and perhaps the ethylene glycol temperature is higher than under the situation of set point and all will starts, and only when the two temperature all reached design temperature, compressor just can be shut down.More than operation control all is not to be under the situation of defrost state at air-cooled evaporimeter, and when air-cooled evaporimeter was in defrost state, the ethylene glycol water pump stopped.Because the heat that condenser distributed can not enter surrounding enviroment, therefore can effectively alleviate the building refrigeration duty again.On the other hand, the hot and cold water of multi-source load self-balance type heat pump has made full use of the balance of indoor cooling and heating load, and only the load part to difference compensates with the external world, can play better comprehensive utilization of energy effect.

On the loop of multi-source load self-balance type heat pump of the present invention three heat exchangers, a solenoid operated four-way valve are arranged, its special Position Design makes three heat exchangers, having fixed exothermic effects for one is used for heating, fixed heat-absorbing action for one and be used for freezing, another is switchable heat exchanger.Cooling and heating load all less than situation about satisfying under, can freeze simultaneously and heat; Under the situation about in refrigeration duty, being satisfied, corresponding heat absorption heat exchanger water circulating pump or blower fan are out of service, the switchable heat exchanger of another one can switch to the heat absorption operational mode and replace fixing endothermic heat exchanger, allow the heat exchanger of fixedly heat release continue heat production, thereby the function that realization heats separately is till thermic load satisfies; Under the situation about in thermic load, being satisfied, corresponding heat release heat exchanger water circulating pump or blower fan are out of service, the switchable heat exchanger of another one can switch to the heat release operational mode and replace fixing heat release heat exchanger, allow the heat exchanger of fixing heat absorption continue heat absorption, thereby realize the function of separate refrigeration, till refrigeration duty satisfies.

Because refrigerating efficiency of the present invention is greatly improved, its refrigerating capacity tends to greater than the required cold of reality, so the present invention has increased ethylene glycol as the medium that stores cold, can play the effect of better energy-saving and emission-reduction.

Description of drawings

Fig. 1 is the schematic diagram of the embodiment of the invention one.

Fig. 2 is the schematic diagram of the embodiment of the invention two.

The specific embodiment

Embodiment one

Referring to Fig. 1.Present embodiment comprises a multi-source balancing the load type source pump, comprising 1, three heat exchanger of compressor 2,3,4, solenoid operated four-way valve 5 and expansion valve 6; Heat exchanger 2 is between the inflow end of compressor 1 and solenoid operated four-way valve 5, and heat exchanger 4 is between the outflow end and compressor 1 of solenoid operated four-way valve 5, and heat exchanger 3 is between two bypass ends of solenoid operated four-way valve 5; Above critical piece constitutes a loop, and cold-producing medium circulates therein.About this multi-source balancing the load type source pump, describing more specifically can be referring to the Chinese patent 2010101004622 of Li Gang application.

7 is the refrigerating equipment of present embodiment, comprise condenser 8, evaporimeter 9, ethylene glycol heat exchanger 10, compressor 11, series connection constitutes a refrigeration cycle, wherein condenser 8 is a water-cooled condenser, link to each other by pipeline with aforesaid heat exchanger 4, heat exchanger 4 provides cold water for condenser 8, thereby can improve the refrigeration of refrigerating equipment 7.Present embodiment also comprises an ethylene glycol tank 12, and ethylene glycol flows between tank 12 and heat exchanger 10, by heat exchanger its temperature is dropped to about-5 ℃, in order to other need.

Embodiment two

Referring to Fig. 2.The difference of present embodiment and embodiment one is that ethylene glycol heat exchanger 10 is to insert refrigeration cycle in parallel with evaporimeter 9, and the other technologies feature is identical with embodiment one, repeats no more.

Claims

1. refrigerating equipment, comprise condenser and evaporimeter, it is characterized in that: it also comprises multi-source load self-balance type heat pump, and for system provides stable circulating hot water and circulating water, the cold water of multi-source load self-balance type heat pump communicates with the condenser of refrigerating equipment;

2. a kind of refrigerating equipment according to claim 1 is characterized in that: also comprise a refrigerant-ethylene glycol heat exchanger on its refrigeration cycle, with evaporator series or in parallel, and link to each other with a tank.