CN203518309U - Refrigerator and refrigerating loop of direct-cooling refrigerator - Google Patents
Refrigerator and refrigerating loop of direct-cooling refrigerator Download PDFInfo
- Publication number
- CN203518309U CN203518309U CN201320666458.1U CN201320666458U CN203518309U CN 203518309 U CN203518309 U CN 203518309U CN 201320666458 U CN201320666458 U CN 201320666458U CN 203518309 U CN203518309 U CN 203518309U
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- temperature
- evaporator
- refrigerating
- evaporimeter
- chamber
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- 238000001816 cooling Methods 0.000 title claims abstract description 17
- 238000005057 refrigeration Methods 0.000 claims abstract description 26
- 238000007710 freezing Methods 0.000 abstract description 10
- 230000008014 freezing Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 239000003507 refrigerant Substances 0.000 description 16
- 238000004134 energy conservation Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
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Abstract
The utility model relates to a refrigerator and a refrigerating loop of the direct-cooling refrigerator. The refrigerator comprises a compressor, a condenser, a refrigeration evaporator, a freezing evaporator, a first temperature-varying evaporator, a second temperature-varying evaporator, an air return pipe, a first capillary pipe and a second capillary pipe, wherein the first capillary pipe, the refrigeration evaporator and the first temperature-varying evaporator form a series-connection flow channel; the series-connection flow channel is connected with the second capillary pipe in parallel; an outlet of a connection structure of the series-connection flow channel and the second capillary pipe is connected to an inlet of the freezing evaporator; an outlet of the freezing evaporator is divided into two channels; air in one channel of the outlet of the freezing evaporator flows back to the compressor via the second temperature-varying evaporator and the air return pipe; and air in the other channel of the outlet of the freezing evaporator directly flows back to the compressor via the air return pipe. By using the refrigerator and the refrigerating loop of the direct-cooling refrigerator, the problem that the temperature range of a middle temperature-varying chamber of the direct-cooling refrigerator is small is solved, the indoor temperature of the temperature-varying chamber can be below minus 18 DEG C, and the temperature-varying chamber has functions of a freezing chamber, a soft freezing chamber, a controlled freezing chamber, a refrigerating chamber and the like. The refrigerating loop is simple, the cost is low, a control mode is simple, flow channels are changed over infrequently, and an energy-saving effect is achieved.
Description
Technical field
The utility model relates to a kind of refrigerator, particularly a kind of direct cooling refrigerator refrigerating circuit and refrigerator.
Background technology
Three direct cooling refrigerators in the market, comprise refrigerating chamber, temperature-changing chamber and refrigerating chamber, the temperature range of middle temperature-changing chamber is generally+10 ℃～-10 ℃ between, according to user's needs, select corresponding temperature, but the range of temperature scope of existing temperature-changing chamber is less, can not meet multiple demand, as temperature-changing chamber, cannot store the food that three-star freezer temperature (18 ℃) requires, consumer has been caused to inconvenience.
The method of head it off is increase by one road temperature-changing chamber evaporimeter at present, thereby strengthens temperature-changing chamber disengagement area, reaches the object of-18 ℃ of frozen food to realize temperature-changing chamber, and its refrigerating circuit as shown in Figure 1.Refrigerant is after compressor 1 compression, the cold media gas of HTHP enters condenser 2 and is condensed into refrigerant liquid, refrigerant liquid enters one through device for drying and filtering 3 and enters four magnetic valves that go out 4, refrigerant through magnetic valve 4 after out enters four capillary 5a, 5b, 5c, 5d, and the refrigerant after capillary 5a throttling enters refrigerating evaporator 6; Refrigerant after capillary 5b throttling enters refrigeration evaporator 7, and refrigerant enters refrigerating evaporator 6 from refrigeration evaporator 7 out again; Refrigerant after capillary 5c throttling enters the first alternating temperature evaporimeter 8, then enters the second alternating temperature evaporimeter 9, finally enters refrigerating evaporator 6 again; Refrigerant after capillary 5d throttling enters the second alternating temperature evaporimeter 9, enter again refrigerating evaporator 6, refrigerant carries out heat exchange with the air of the interior space in refrigeration evaporator 7, refrigerating evaporator 6, the first alternating temperature evaporimeter 8 and the second alternating temperature evaporimeter 9, for refrigerating chamber, refrigerating chamber and temperature-changing chamber cooling, finally by refrigerating evaporator 6 cold media gas cooled via return air pipe 10 out, flow back to compressor 1.
This kind of refrigeration cycle, reaches-18 ℃ although can realize temperature-changing chamber, and whole loop is than more complicated, and cost is higher, wayward, not energy-conservation.
Utility model content
The utility model main purpose is to address the above problem and is not enough, provides a kind of loop simple, the direct cooling refrigerator refrigerating circuit that cost is low and energy-conservation.
Another main purpose of the utility model is, a kind of refrigerator that adopts above-mentioned refrigerating circuit is provided.
For achieving the above object, the technical solution of the utility model is:
A kind of direct cooling refrigerator refrigerating circuit, comprise compressor, condenser, refrigeration evaporator, refrigerating evaporator, the first alternating temperature evaporimeter, the second alternating temperature evaporimeter and muffler, also comprise the first capillary and the second capillary, described the first capillary, refrigeration evaporator, the first alternating temperature evaporator bank becomes series connection stream, described series connection stream and described the second capillary paralleling, described series connection stream is connected the entrance of described refrigerating evaporator with the second outlet capillaceous, the outlet of described refrigerating evaporator is divided into two-way, described compressor is flowed back to through described the second alternating temperature evaporimeter and muffler in one tunnel, described compressor is directly flowed back to through described muffler in another road.
Further, between described condenser and described the first capillary and the second capillary, be connected in series one one magnetic valve that enters scene 2.
Further, between the outlet of described refrigerating evaporator and described the second alternating temperature evaporimeter and muffler, be connected a triple valve.
Further, described the first alternating temperature evaporimeter and the second alternating temperature evaporimeter are plate-tube type evaporator.
Another technical scheme of the present utility model is:
A refrigerator, comprises refrigerating chamber, temperature-changing chamber and refrigerating chamber, comprises refrigerating circuit as above.
Further, described the first alternating temperature evaporimeter and the second alternating temperature evaporimeter are arranged on respectively the position of rear portion, top, bottom or the both sides of described temperature-changing chamber.
Further, described the first alternating temperature evaporimeter is arranged on the rear portion of described temperature-changing chamber, and described the second alternating temperature evaporimeter is arranged on the top of described temperature-changing chamber.
Further, at described the second alternating temperature evaporimeter place, temperature-changing chamber blower fan is set.
Content to sum up, a kind of direct cooling refrigerator refrigerating circuit described in the utility model and refrigerator, making refrigeration evaporator, refrigerating evaporator, temperature-changing chamber evaporimeter form new connection by magnetic valve moves towards, thereby solved the little problem of the middle temperature-changing chamber temperature range of direct cooling refrigerator, the indoor temperature of temperature-changing chamber reaches below-18 ℃, makes temperature-changing chamber realize the effect of chamber function between freezing, soft freezing, ice temperature, refrigeration etc.And this refrigerating circuit is simple, cost is low, and between control mode letter, the switching between each stream is less, has energy-conservation effect.
Accompanying drawing explanation
Fig. 1 is prior art refrigerating circuit figure;
Fig. 2 is the utility model refrigerating circuit figure.
As depicted in figs. 1 and 2, compressor 1, condenser 2, device for drying and filtering 3, magnetic valve 4, capillary 5a, 5b, 5c, 5d, refrigerating evaporator 6, refrigeration evaporator 7, the first alternating temperature evaporimeters 8, the second alternating temperature evaporimeter 9, muffler 10, the first capillaries 11, the second capillary 12, triple valve 13, magnetic valve 14, temperature-changing chamber blower fan 15.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the utility model is described in further detail:
As shown in Figure 2, a kind of direct cooling refrigerator refrigerating circuit, comprises compressor 1, condenser 2, refrigerating evaporator 6, refrigeration evaporator 7, the first alternating temperature evaporimeter 8, the second alternating temperature evaporimeter 9, muffler 10, the first capillary 11 and the second capillary 12.
Wherein, the first capillary 11, refrigeration evaporator 7, the first alternating temperature evaporimeter 8 form a series connection stream, series connection stream is in parallel with the second capillary 12, series connection stream and the outlet of the second capillary 12 are all connected the entrance of refrigerating evaporator 8, the outlet of refrigerating evaporator 8 is divided into two-way again by an electronic three-way valve 13, one tunnel the second alternating temperature evaporimeter 9 and muffler 10 flow back to compressor 1, and the direct cooled via return air pipe 10 in another road flows back to compressor 1.
Between condenser 2 and the first capillary 11 and the second capillary 12, be connected in series a magnetic valve 14, magnetic valve 14 is the magnetic valve into scene 2, condenser 2 refrigerant liquid is out divided into two-way through a magnetic valve 14 that enters scene 2, flows into respectively the first capillary 11 and the second capillary 12.
As shown in Figure 2, describe the kind of refrigeration cycle process of this refrigerating circuit below in detail:
Refrigerant is through compressor 1, condenser 2 and device for drying and filtering 3, enter a magnetic valve 14 that enters scene 2, be divided into two-way, one tunnel enters refrigerating evaporator 6 through the first capillary 11, refrigeration evaporator 7, the first alternating temperature evaporimeter 8, another road directly enters refrigerating evaporator 6 through the second capillary 12, refrigerant is after refrigerating evaporator 6, by an electronic three-way valve 13, be divided into two-way, one tunnel the second alternating temperature evaporimeter 9 enters muffler 10 and gets back to compressor 1, one tunnel and get back to compressor 1 and complete circulation through muffler 10.
When the design temperature of temperature-changing chamber is lower or below-18 ℃ time, electronic three-way valve 13 will will be brought into the second alternating temperature evaporimeter 9 from refrigerating evaporator 6 refrigerant out, so just increased the evaporimeter refrigeration gross area of temperature-changing chamber, can realize fast reducing to the object of-18 ℃ of low temperature, then refrigerant cooled via return air pipe 10 flows back into compressor 1, completes a kind of refrigeration cycle.
The utility model also provides a kind of refrigerator, comprises refrigerating chamber, temperature-changing chamber and refrigerating chamber, at refrigerating chamber, refrigeration evaporator 7 is set, and at refrigerating chamber, refrigerating evaporator 6 is set, and at temperature-changing chamber, the first temperature-changing chamber evaporimeter 8 and the second temperature-changing chamber evaporimeter 9 is set.
Wherein, the first alternating temperature evaporimeter 8 and the second alternating temperature evaporimeter 9 are arranged on respectively the position of rear portion, top, bottom or the both sides of temperature-changing chamber, can arrange according to actual installing space.In the present embodiment, preferably the first alternating temperature evaporimeter 8 is arranged on to the rear portion of temperature-changing chamber, the second 9, alternating temperature evaporimeter top that is arranged on temperature-changing chamber, and first alternating temperature evaporimeter 8 and the second alternating temperature evaporimeter 9 preferably adopt plate-tube type evaporator, to increase the heat exchange efficiency of temperature-changing chamber, the first alternating temperature evaporimeter 8 and the second alternating temperature evaporimeter 9 also can adopt finned tube evaporator.
In order to make, temperature-changing chamber temperature is more even, quickening refrigerating speed, makes temperature-changing chamber can reach in the short period of time-18 ℃, at the second alternating temperature evaporimeter 9 places, a temperature-changing chamber blower fan 15 can also be set, and accelerates the heat exchange of the second alternating temperature evaporimeter 9.
As mentioned above, given scheme content, can derive similar technical scheme by reference to the accompanying drawings.In every case be the content that does not depart from technical solutions of the utility model, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.
Claims (8)
1. a direct cooling refrigerator refrigerating circuit, comprise compressor, condenser, refrigeration evaporator, refrigerating evaporator, the first alternating temperature evaporimeter, the second alternating temperature evaporimeter and muffler, it is characterized in that: also comprise the first capillary and the second capillary, described the first capillary, refrigeration evaporator, the first alternating temperature evaporator bank becomes series connection stream, described series connection stream and described the second capillary paralleling, described series connection stream is connected the entrance of described refrigerating evaporator with the second outlet capillaceous, the outlet of described refrigerating evaporator is divided into two-way, described compressor is flowed back to through described the second alternating temperature evaporimeter and muffler in one tunnel, described compressor is directly flowed back to through described muffler in another road.
2. direct cooling refrigerator refrigerating circuit according to claim 1, is characterized in that: between described condenser and described the first capillary and the second capillary, be connected in series one one magnetic valve that enters scene 2.
3. direct cooling refrigerator refrigerating circuit according to claim 1, is characterized in that: between the outlet of described refrigerating evaporator and described the second alternating temperature evaporimeter and muffler, be connected a triple valve.
4. direct cooling refrigerator refrigerating circuit according to claim 1, is characterized in that: described the first alternating temperature evaporimeter and the second alternating temperature evaporimeter are plate-tube type evaporator.
5. a refrigerator, comprise refrigerating chamber, temperature-changing chamber and refrigerating chamber, at refrigerating chamber, refrigeration evaporator is set, at refrigerating chamber, refrigerating evaporator is set, at temperature-changing chamber, the first temperature-changing chamber evaporimeter and the second temperature-changing chamber evaporimeter are set, it is characterized in that: comprise the refrigerating circuit as described in claim 1-3 any one.
6. refrigerator according to claim 5, is characterized in that: described the first alternating temperature evaporimeter and the second alternating temperature evaporimeter are arranged on respectively the position of rear portion, top, bottom or the both sides of described temperature-changing chamber.
7. refrigerator according to claim 6, is characterized in that: described the first alternating temperature evaporimeter is arranged on the rear portion of described temperature-changing chamber, and described the second alternating temperature evaporimeter is arranged on the top of described temperature-changing chamber.
8. refrigerator according to claim 5, is characterized in that: at described the second alternating temperature evaporimeter place, temperature-changing chamber blower fan is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666458.1U CN203518309U (en) | 2013-10-28 | 2013-10-28 | Refrigerator and refrigerating loop of direct-cooling refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320666458.1U CN203518309U (en) | 2013-10-28 | 2013-10-28 | Refrigerator and refrigerating loop of direct-cooling refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203518309U true CN203518309U (en) | 2014-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320666458.1U Expired - Lifetime CN203518309U (en) | 2013-10-28 | 2013-10-28 | Refrigerator and refrigerating loop of direct-cooling refrigerator |
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| CN (1) | CN203518309U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579030A (en) * | 2019-09-27 | 2019-12-17 | 长虹美菱股份有限公司 | refrigerating system of refrigerator and control method |
-
2013
- 2013-10-28 CN CN201320666458.1U patent/CN203518309U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110579030A (en) * | 2019-09-27 | 2019-12-17 | 长虹美菱股份有限公司 | refrigerating system of refrigerator and control method |
| CN110579030B (en) * | 2019-09-27 | 2023-08-08 | 长虹美菱股份有限公司 | Refrigerating system of refrigerator and control method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
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| CX01 | Expiry of patent term |