CN112303947A - Double-evaporator refrigeration system, refrigeration equipment and control method of refrigeration system of refrigeration equipment - Google Patents
Double-evaporator refrigeration system, refrigeration equipment and control method of refrigeration system of refrigeration equipment Download PDFInfo
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- CN112303947A CN112303947A CN202011200999.6A CN202011200999A CN112303947A CN 112303947 A CN112303947 A CN 112303947A CN 202011200999 A CN202011200999 A CN 202011200999A CN 112303947 A CN112303947 A CN 112303947A
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- evaporator
- refrigeration
- condenser
- compressor
- drying filter
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/04—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in series
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2511—Evaporator distribution valves
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a double-evaporator refrigeration system, refrigeration equipment and a control method of the refrigeration system, and relates to the technical field of refrigeration. The invention comprises a compressor, a condenser, a drying filter, an evaporator and an anti-condensation pipe; the inlet end of the condenser is connected with the outlet of the compressor; the inlet end of the drying filter is connected with the outlet end of the condenser through a first connecting pipeline; the evaporator comprises a first evaporator and a second evaporator which are connected in parallel, the inlet end of the evaporator is connected with the outlet end of the drying filter, and the outlet end of the evaporator is connected with the inlet of the compressor; the condensation preventing pipe and the first connecting pipeline are connected between the outlet end of the condenser and the inlet end of the drying filter in parallel. The invention controls different refrigeration loops to be communicated through the temperature in the refrigerator and the set temperature, when the temperature is overhigh, the first refrigeration loop works, and when the temperature in the refrigerator returns to normal, the second refrigeration loop works, so that the refrigeration efficiency of the refrigeration equipment is improved, the energy consumption is reduced, and the safety and the stability of stored articles are ensured.
Description
Technical Field
The invention belongs to the technical field of refrigeration, and particularly relates to a double-evaporator refrigeration system, refrigeration equipment and a control method of the refrigeration system.
Background
Refrigerators for refrigerating or freezing foods (or other articles) are essential home appliances, and provide great convenience to people's lives. In the working process of the refrigerator, because the temperature of the freezing evaporator is low, the wet air flowing through the freezing evaporator is easy to generate condensation on the evaporator, and the refrigeration function of the freezing evaporator is further influenced.
In order to prevent the condensation phenomenon generated on the outer surface of the refrigerator body of the refrigeration equipment in the using process, at present, a plurality of refrigerators adopt an electric heating mode to defrost a freezing evaporator. Specifically, a door body heater and a door side pipe are added to prevent condensation. When the refrigeration equipment is powered on for the first time, the heating parts immediately start to work, and heat is transferred into the refrigerator through modes of heat radiation, heat convection and the like, so that the cooling speed of the refrigerator is greatly influenced, and the mode has the defects of low efficiency, high energy consumption and the like; when a user frequently opens a door, high-temperature gas in the environment enters the box to raise the temperature of the box body in the stored articles, the existing refrigerating system can only ensure that the temperature in the box reaches the set temperature within 2 hours, and the box body temperature cannot be rapidly cooled to the set temperature due to the influence of heating parts, so that the temperature fluctuation of the articles is large, and the risk of reducing the performance of the stored articles and even losing efficacy is caused.
Disclosure of Invention
The invention aims to provide a double-evaporator refrigeration system, refrigeration equipment and a control method of the refrigeration system, wherein different refrigeration loops are controlled to be communicated through the temperature in a refrigerator and the set temperature, when the temperature value in the refrigerator is overhigh, the first refrigeration loop of the refrigeration equipment works, the heat dissipation area of an evaporator is increased, the temperature in the refrigerator is quickly reduced, when the temperature value in the refrigerator is recovered to a normal value, the second refrigeration loop of the refrigeration equipment works, so that the temperature in the refrigerator is kept at a normal temperature, the refrigeration speed of the refrigeration equipment is improved by controlling the work of a condensation preventing pipe and increasing the heat dissipation area of the evaporator, the refrigeration efficiency of the refrigeration equipment is improved, the energy consumption is reduced, the problems of low cooling speed and high energy consumption of the refrigeration equipment are solved, and the safety and stability of stored articles are ensured.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention is a dual evaporator refrigeration system comprising: a compressor; a condenser; the inlet end of the condenser is connected with the outlet of the compressor; drying the filter; the inlet end of the drying filter is connected with the outlet end of the condenser through a first connecting pipeline; an evaporator; the evaporator comprises a first evaporator and a second evaporator which are connected in parallel, the inlet end of the evaporator is connected with the outlet end of the drying filter, and the outlet end of the evaporator is connected with the inlet of the compressor; an anti-condensation pipe; the condensation preventing pipe and the first connecting pipeline are connected in parallel between the outlet end of the condenser and the inlet end of the drying filter, and the outlet end of the condenser can be alternatively communicated with the inlet end of the condensation preventing pipe or the inlet end of the first connecting pipeline; the compressor, the condenser, the drying filter, the first evaporator and the second evaporator can be communicated in sequence to form a first refrigeration loop; the compressor, the condenser, the condensation preventing pipe, the drying filter and the first evaporator can be communicated in sequence to form a second refrigeration loop.
Further, still include first solenoid valve, the exit end of condenser passes through first solenoid valve and connects condensation prevention pipe and first connecting line, and first solenoid valve optionally communicates condensation prevention pipe or first connecting line.
Further, the evaporator also comprises a second electromagnetic valve, the second electromagnetic valve is connected with the second evaporator in series and used for communicating the second evaporator, and the second electromagnetic valve and the second evaporator are both connected with the first evaporator in parallel.
A refrigeration device comprises the double-evaporator refrigeration system.
A method of controlling a refrigeration system, comprising the steps of:
the method comprises the following steps: judging whether the set temperature value T0 in the box is greater than the actual value T1;
step two: if the set value T0 is greater than the actual value T1, the compressor, the condenser, the drying filter, the first evaporator and the second evaporator are communicated in sequence to form a first refrigeration loop.
Step three: and if the set value T0 is not more than the actual value T1, the compressor, the condenser, the condensation preventing pipe, the drying filter and the first evaporator are communicated in sequence to form a second refrigeration loop.
The invention has the following beneficial effects:
the invention controls the communication of different refrigeration loops through the temperature in the refrigerator and the set temperature, when the temperature value in the refrigerator is overhigh, the first refrigeration loop of the refrigeration equipment works, the heat dissipation area of the evaporator is increased, the temperature in the refrigerator is quickly reduced, when the temperature value in the refrigerator is recovered to a normal value, the second refrigeration loop of the refrigeration equipment works, so that the temperature in the refrigerator is kept at the normal temperature, the refrigeration speed of the refrigeration equipment is improved by controlling the work of the condensation preventing pipe and increasing the heat dissipation area of the evaporator, the refrigeration efficiency of the refrigeration equipment is improved, the energy consumption is reduced, the problems of low temperature reduction speed and high energy consumption of the refrigeration equipment are solved, and the safety and stability of stored articles are ensured.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of the configuration of a dual evaporator refrigeration system of the present invention;
FIG. 2 is a partial view taken at A in FIG. 1;
FIG. 3 is a flow chart of a method of controlling a refrigeration system;
in the drawings, the components represented by the respective reference numerals are listed below:
1-compressor, 2-condenser, 3-, 4-first electromagnetic valve, 5-condensing fan, 6-drying filter, 7-capillary tube, 8-second electromagnetic valve, 9-evaporator, 10-evaporating fan, 401-first connecting pipeline, 901-first evaporator, 902-second evaporator.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a refrigeration apparatus according to an embodiment of the present invention is provided with a dual evaporator refrigeration system for forming a low temperature environment. The structure of the dual evaporator refrigeration system of the present application will be described below by taking a refrigerator having a refrigeration apparatus as an example. The present embodiment is described as an example, and the technical scope of the present application is not limited thereto. It is understood that in other embodiments, the refrigeration device may also be embodied as other devices provided with a dual evaporator refrigeration system, such as an ice chest, etc., without limitation.
The double-evaporator refrigeration system comprises a control module, not shown, a compressor 1, a condenser 2, a drying filter 6, an evaporator 9, a condensation preventing pipe 5, a first connecting pipeline 401, a first electromagnetic valve 4 and a second electromagnetic valve 8, wherein the structures are connected with each other through pipelines and can form a first refrigeration loop or a second refrigeration loop under the control of the control module.
Specifically, the inlet end of the condenser 2 is connected with the outlet of the compressor 1; the outlet end of the condenser 2 is connected with a first electromagnetic valve 4, the first electromagnetic valve 4 comprises two outlet ends which can be opened and closed under the control of the control module, one of the outlet ends is connected with the inlet end of the condensation preventing pipe 5, and the outlet end of the condensation preventing pipe 5 is connected with the inlet end of the drying filter 6; the other outlet end of the first solenoid valve 4 is directly connected to the inlet end of the dry filter 6 through a first connecting pipe 401. So, prevent tub 5 and first connecting tube 401 and connect in parallel between the exit end of condenser pipe 2 and the entry end of drier-filter 6, first solenoid valve 4 controls the switching of two exit ends under control module's control to control condenser pipe 2 alternatively communicates prevent tub 5 or first connecting tube 401.
The outlet end of the dry filter 6 is connected to the inlet end of the evaporator 9, and it should be noted that a capillary tube 7 may be connected between the dry filter 6 and the evaporator 9, so as to improve the refrigeration efficiency of the refrigerator.
The evaporator 9 includes a first evaporator 901 and a second evaporator 902, the second solenoid valve 8 is connected in series with the second evaporator 902 to control the connection and the closing of the second evaporator 902, both the second solenoid valve 8 and the second evaporator 902 are connected in parallel with the first evaporator 901, the inlet end of the evaporator 9 is connected to the outlet end of the dry filter 6, the outlet end of the evaporator 9 is connected to the inlet of the compressor 10 to control the dry filter 6 to alternatively connect the first evaporator 901 and the second evaporator 902 or the first evaporator 901.
Preferably, the refrigeration system further comprises a condensing fan 3 and an evaporating fan 10. The condensing fan 3 is arranged on one side of the condensing pipe 2 and used for conveying the cold energy in the condensing pipe 2 into the refrigerator; the evaporation fan 10 is installed at one side of the evaporator 9, and is used for outputting heat in the evaporator 9 to the outside of the refrigerator.
When the refrigeration system 1 is in the first refrigeration mode, the first solenoid valve 4 and the second solenoid valve 8 enable the compressor 1, the condenser 2, the filter-drier 6, the first evaporator 901 and the second evaporator 902 to be sequentially communicated under the control of the control module, so as to form a first refrigeration loop.
When the refrigeration system 1 is in the first refrigeration mode, the first electromagnetic valve 4 makes the compressor 1, the condenser 2, the condensation preventing pipe 5, the drying filter 6 and the first evaporator 901 sequentially communicated under the control of the control module to form a second refrigeration loop.
A method of controlling a refrigeration system, comprising the steps of:
the method comprises the following steps: judging whether the set temperature value T0 in the box is greater than the actual value T1;
step two: if the set value T0 is greater than the actual value T1, the compressor 1, the condenser 2, the drying filter 6, the first evaporator 901 and the second evaporator 902 are sequentially communicated to form a first refrigeration loop, the rotating speed of the evaporation fan 10 is increased, and the door heater is disconnected, so that the cooling speed of the refrigeration equipment is increased.
Step three: if the set value T0 is not greater than the actual value T1, the compressor 1, the condenser 2, the condensation preventing pipe 5, the drying filter 6 and the first evaporator 901 are sequentially communicated to form a second refrigeration loop, the evaporation fan 10 returns to the conventional speed, the door heater is turned on, and the refrigeration equipment is restored to the normal refrigeration state.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (5)
1. A dual evaporator refrigeration system comprising:
a compressor (1);
a condenser (2); the inlet end of the condenser (2) is connected with the outlet of the compressor (1);
a drying filter (6); the inlet end of the dry filter (6) is connected with the outlet end of the condenser (2) through a first connecting pipeline (401);
an evaporator (9); the evaporator (9) comprises a first evaporator (901) and a second evaporator (902), the first evaporator (901) and the second evaporator (902) are connected together in parallel, the inlet end of the evaporator (9) is connected with the outlet end of the drying filter (6), and the outlet end of the evaporator (9) is connected with the inlet of the compressor (1);
the compressor (1), the condenser (2), the drying filter (6), the first evaporator (901) and the second evaporator (902) can be communicated in sequence to form a first refrigeration loop;
an anti-condensation tube (5); the condensation preventing pipe (5) and the first connecting pipeline (401) are connected between the outlet end of the condenser (2) and the inlet end of the dry filter (6) in parallel, and the outlet end of the condenser (2) can be alternatively communicated with the inlet end of the condensation preventing pipe (5) or the inlet end of the first connecting pipeline (401);
the compressor (1), the condenser (2), the condensation preventing pipe (5), the drying filter (6) and the first evaporator (901) can be communicated in sequence to form a second refrigeration loop.
2. A dual evaporator refrigeration system as claimed in claim 1 further comprising a first solenoid valve (4), the outlet end of the condenser (2) being connected to the condensation preventing pipe (5) and the first connecting conduit (401) through the first solenoid valve (4), the first solenoid valve (4) being in selective communication with the condensation preventing pipe (5) or the first connecting conduit (401).
3. A dual evaporator refrigeration system as recited in claim 1 further comprising a second solenoid valve (8), said second solenoid valve (8) being in series with a second evaporator (902) for communicating with the second evaporator (902), both said second solenoid valve (8) and said second evaporator (902) being in parallel with said first evaporator (901).
4. A refrigeration apparatus comprising a dual evaporative refrigeration system as claimed in any one of claims 1 to 3.
5. A control method of a refrigerating system as recited in any one of claims 1 to 3, characterized by comprising the steps of:
the method comprises the following steps: judging whether the set temperature value T0 in the box is greater than the actual value T1;
step two: if the set value T0 is greater than the actual value T1, the compressor (1), the condenser (2), the drying filter (6), the first evaporator (901) and the second evaporator (902) are sequentially communicated to form a first refrigeration circuit.
Step three: if the set value T0 is not greater than the actual value T1, the compressor (1), the condenser (2), the condensation preventing pipe (5), the drying filter (6) and the first evaporator (901) are communicated in sequence to form a second refrigeration loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011200999.6A CN112303947A (en) | 2020-11-02 | 2020-11-02 | Double-evaporator refrigeration system, refrigeration equipment and control method of refrigeration system of refrigeration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011200999.6A CN112303947A (en) | 2020-11-02 | 2020-11-02 | Double-evaporator refrigeration system, refrigeration equipment and control method of refrigeration system of refrigeration equipment |
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| CN112303947A true CN112303947A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011200999.6A Pending CN112303947A (en) | 2020-11-02 | 2020-11-02 | Double-evaporator refrigeration system, refrigeration equipment and control method of refrigeration system of refrigeration equipment |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3303054A1 (en) * | 1983-01-29 | 1984-08-02 | Ruhrgas Ag, 4300 Essen | SIGNALER FOR CONTROLLING THE DEFROST PROCESS ON THE AIR SIDE OF THE EVAPORATOR OF A HEAT PUMP OR THE LIKE |
| CN2482034Y (en) * | 2001-04-24 | 2002-03-13 | 海尔集团公司 | Energy-saving electric refrigerator |
| CN102121780A (en) * | 2011-02-16 | 2011-07-13 | 合肥美的荣事达电冰箱有限公司 | Refrigeration system and refrigerator with same |
| CN105004126A (en) * | 2015-08-05 | 2015-10-28 | 合肥美的电冰箱有限公司 | Refrigerator refrigeration system and refrigerator |
-
2020
- 2020-11-02 CN CN202011200999.6A patent/CN112303947A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3303054A1 (en) * | 1983-01-29 | 1984-08-02 | Ruhrgas Ag, 4300 Essen | SIGNALER FOR CONTROLLING THE DEFROST PROCESS ON THE AIR SIDE OF THE EVAPORATOR OF A HEAT PUMP OR THE LIKE |
| CN2482034Y (en) * | 2001-04-24 | 2002-03-13 | 海尔集团公司 | Energy-saving electric refrigerator |
| CN102121780A (en) * | 2011-02-16 | 2011-07-13 | 合肥美的荣事达电冰箱有限公司 | Refrigeration system and refrigerator with same |
| CN105004126A (en) * | 2015-08-05 | 2015-10-28 | 合肥美的电冰箱有限公司 | Refrigerator refrigeration system and refrigerator |
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Application publication date: 20210202 |
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