CN1114035A - Novel direct-cooling type double-temperature double-control refrigerating system - Google Patents
Novel direct-cooling type double-temperature double-control refrigerating system Download PDFInfo
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- CN1114035A CN1114035A CN 94110664 CN94110664A CN1114035A CN 1114035 A CN1114035 A CN 1114035A CN 94110664 CN94110664 CN 94110664 CN 94110664 A CN94110664 A CN 94110664A CN 1114035 A CN1114035 A CN 1114035A
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- magnetic valve
- evaporator
- compressor
- refrigerating chamber
- refrigerating
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- 238000001816 cooling Methods 0.000 title claims abstract description 8
- 238000005057 refrigeration Methods 0.000 claims abstract description 53
- 238000001704 evaporation Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims description 15
- 230000008020 evaporation Effects 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- 238000009835 boiling Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 description 5
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 3
- 235000019404 dichlorodifluoromethane Nutrition 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 235000016936 Dendrocalamus strictus Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
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- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The utility model provides a novel two accuse refrigerating system of two temperature of direct-cooling formula, by the compressor, the condenser, drier-filter, a plurality of solenoid valves, a plurality of capillaries, the freezer evaporimeter, walk-in evaporimeter is constituteed, because this system places the freezer evaporimeter in the walk-in evaporimeter in front, walk-in evaporimeter sets up on the way, satisfied the evaporating temperature requirement of different boiling refrigeration working mediums among the multiple mixed refrigeration working medium, make two accuse refrigerating system of two temperature be suitable for multiple mixed working mediums, have energy-conservation and improve the effect of compressor energy efficiency ratio and life.
Description
The utility model relates to a kind of refrigeration and control system of novel direct-cooling type double temperature double control refrigerator.Specifically, be exactly improvement to the refrigeration and the control system of existing direct-cooling type double temperaturing controling refrigerator.
In the existing direct-cooling type double temperature double control refrigeration system, employing be the refrigeration system that is referred to as the 1.2.0 mode, i.e. system, two temperature controllers do not have automatically molten white device.As the Qindao--the BCD-220 type refrigerator of Liebherr's board promptly is typical case's representative of this refrigeration system.In the design of this system, with the commutation of refrigerating chamber temperature controller control magnetic valve, with the start-stop of refrigerating chamber temperature controller control compressor, the refrigeration working medium refrigerator evaporator of at first flowing through, enter freezer evaporator again, and refrigerator evaporator places on the branch road, freezer evaporator places on the main line.Its advantage is: compact conformation, be easy to control, and cost is low.
In recent years, along with the raising of human environmental consciousness, international community cuts down and bans use of the CFCs(freon-type material) cry more and more higher.The end of this century, present employed R-12(Freon-12) refrigeration working medium will be all alternative by floride-free refrigeration working medium, and from the achievement in research of present countries in the world, still do not have desirable single refrigeration working medium and can substitute existing R-12.Can estimate that following floride-free refrigeration working medium will be polynary hybrid refrigeration working medium.
Polynary hybrid refrigeration working medium is applied in the simple refrigeration system of single temperature control, can not produce considerable influence to its refrigeration performance; But in the double temperature double control refrigeration system, because the refrigerator refrigeration room temperature generally all is lower than-18 ℃, and temperature of refrigerating chamber is generally 0 ℃～10 ℃.Therefore, when mixed working fluid through capillary-compensated, when entering refrigerator evaporator, because each working medium evaporating temperature difference, though cause mixed working fluid in refrigerator evaporator, can both reach temperature requirement, because restrictions such as flow, evaporator area can not be evaporated fully; And when arriving freezer evaporator, part higher boiling working medium can not reach the evaporating temperature requirement, can only flow through freezer evaporator and get back in the compressor.Cause the refrigerating chamber cisco unity malfunction thus; The return-air in-tube evaporation of part working medium before entering compressor makes the muffler frosting; Compressor efficiency reduces, the lost of life, and fault rate improves; Refrigerator power consumption increases.
The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of and pours into polynary hybrid refrigeration working medium, and make the mixed working fluid double temperature double control refrigeration system of evaporation fully rationally.This system can satisfy the refrigeration performance requirement of refrigerator, reaches energy-conservation, improves the effect of compressor life-span and Energy Efficiency Ratio.
The utility model is achieved in that
In the refrigeration system of forming by compressor, condenser, device for drying and filtering, magnetic valve, capillary, freezer evaporator, refrigerator evaporator, comprise following two cover kind of refrigeration cycle:
I: by compressor, condenser, device for drying and filtering, I magnetic valve, I capillary, freezer evaporator, the cryogenic fluid kind of refrigeration cycle that the II magnetic valve is formed;
II: by compressor, condenser, device for drying and filtering, I magnetic valve, II capillary, freezer evaporator, II magnetic valve, the mixed working fluid kind of refrigeration cycle that refrigerator evaporator is formed.
In above-mentioned refrigeration system, refrigerator evaporator is arranged in parallel on the branch road of refrigeration system, freezer evaporator is arranged on the main line of refrigeration system, in the freezer evaporator back, refrigerator evaporator front, refrigeration system main line bifurcation, be provided with a two-position three way magnetic valve, this magnetic valve also can be substituted by the check valve that is arranged on the parallel branch.
In above-mentioned refrigeration system, freezer evaporator can be made up of the evaporation pipeline that two covers on same evaporator plate do not communicate; Wherein, two circuits are parallel with one another, and being serially connected in wherein, the refrigerator evaporator of a circuits back is arranged on the branch road of refrigeration system.
In the electric control system of above-mentioned refrigeration system, when the single-pole double-throw switch (SPDT) in the refrigerating chamber temperature controller was beaten in 1 position, I magnetic valve and II magnetic valve cut off the power supply, and refrigerating chamber temperature controller and refrigerating chamber temperature controller are to connect compressor after in parallel; When single-pole double-throw switch (SPDT) is beaten in 2 positions, connect with the refrigerating chamber temperature controller after I magnetic valve and the parallel connection of II magnetic valve, this branch road and compressor parallel, the refrigerating chamber temperature controller is serially connected with on their main line.
In the above-mentioned refrigeration control system, I number and II magnetic valve are conductings under "on" position, close under off-position.
Design of the present utility model is: freezer evaporator is placed the refrigerator evaporator front, low boiling working fluid in the multicomponent mixture work medium is at first evaporated under the freezer environment temperature, satisfy the freezer temperature needs, and this moment, higher boiling working medium did not reach evaporating temperature under the freezer environment temperature, can not evaporate; When working medium to be mixed was flowed through refrigerator evaporator, low boiling working fluid had almost evaporated fully, and at this moment, the refrigerating chamber environment temperature has reached the evaporating temperature requirement of higher boiling working medium, and higher boiling working medium start vaporizer satisfies the temperature of refrigerating chamber needs.In the freezing chamber evaporator process, even there is remaining low boiling working fluid not evaporate fully, in the refrigerating chamber evaporation process, also can evaporate fully, make mixed working fluid can be fully, evaporation fully, return compressor.
Fig. 1 is existing 1.2.0 refrigerating system figure.
Fig. 2 is a refrigerating system figure of the present utility model.
Fig. 3 is electric control system figure of the present utility model.
Fig. 4 is the refrigerating system figure of one of the utility model embodiment.
Fig. 5 is two the refrigerating system figure of the utility model embodiment.
Fig. 6 is the do not communicate freezer evaporator structure chart of pipeline of two covers on same evaporator plate.
Fig. 7 is three the refrigerating system figure of the utility model embodiment.
Fig. 8 is the refrigeration system electrical control figure that the utility model omits a magnetic valve.
Wherein, compressor (1), condenser (2); device for drying and filtering (3), I magnetic valve (4), I capillary (5); II capillary (6), freezer evaporator (7), II magnetic valve (8); refrigerator evaporator (9), freezer evaporator plate (10), attaching plug (11); PTC starter (12), refrigerating chamber temperature controller (13), refrigerating chamber temperature controller (14); hot protective relay (15), check valve (16), single-pole double-throw switch (SPDT) (17).
Below in conjunction with accompanying drawing the utility model is further described:
Be typical refrigerant system figure of the present utility model as shown in Figure 2.Multicomponent mixture work medium is discharged from compressor (1), through condenser (2), device for drying and filtering (3) arrives I magnetic valve (4), at this moment, the path of magnetic valve (4) connects II capillary (6) and enters freezer evaporator (7), arrive II magnetic valve (8) again, the path of magnetic valve (8) connects refrigerator evaporator (9), returns compressor (1) again through refrigerator evaporator (9).In this course of work, the commutation of I magnetic valve (4) and II magnetic valve (8) is all by refrigerating chamber temperature controller (14) control, the opening, stop being controlled by refrigerating chamber temperature controller (13) of compressor (1).Be example still with Fig. 2 system, when multicomponent mixture work medium evaporates in refrigerator evaporator (9) through freezer evaporator (7), after reaching the temperature requirement of refrigerating chamber regulation, refrigerating chamber temperature controller (14) action, commutate simultaneously in I number and II magnetic valve (4), (8), at this moment, mixed working fluid is through I number electric tubule (5), enter freezer evaporator (7) evaporation again, enter II magnetic valve (8) then, directly return compressor (1).In this course of work, polynary working medium is without refrigerator evaporator (9), only evaporation in freezer evaporator (7), behind the temperature requirement that reaches the refrigerating chamber regulation, refrigerating chamber temperature controller (13) action, compressor (1) shuts down, and whole refrigeration system is finished a complete kind of refrigeration cycle.In first course of work of whole circulation, at first evaporation in freezer evaporator (7) of low boiling working fluid in the multicomponent mixture work medium, and higher boiling working medium is evaporated in refrigerator evaporator (9), when refrigerating chamber reaches temperature requirement, magnetic valve (4), (8) commutation, when refrigeration system was used second course of work, freezer temperature had been close to requirement, in the system still unevaporated refrigeration working medium seldom, compressor (1) work can not make freezer temperature reach requirement for a long time.At this moment, the unevaporated higher boiling refrigeration working medium of minute quantity has been not enough to refrigeration system is impacted.
Show as Fig. 3, when single-pole double-throw switch (SPDT) (17) is beaten in 1 position, magnetic valve (4), (8) outage, not conducting; In conjunction with Fig. 2, hybrid refrigeration working medium circulates along the II road; When temperature of refrigerating chamber reaches requirement, refrigerating chamber temperature controller (14) action, single-pole double-throw switch (SPDT) (17) is beaten when 2 positions, magnetic valve (4), (8) connection, hybrid refrigeration working medium circulates along the I road.With this, realize control to the utility model refrigeration system.
Show as Fig. 4, mounting condition according to product structure in the practical application and refrigeration system, the II magnetic valve (8) that Fig. 2 is shown, substitute with the check valve (16) that is arranged on the branch road, this check valve (16) and I magnetic valve (4) also links, and the assurance mixed working fluid is when I capillary (5) enters refrigerating evaporator (7), and check valve (16) leads to, through out-of-date, close by check valve (16) from II capillary (6) for mixed working fluid.It is simple in structure to use check valve (16) to have, reliability height, the advantage that cost is low.
Canonical system of the present utility model can be changed to as shown in Figure 5, the freezer evaporator of use two not connected circuits on same evaporimeter, choose reasonable capillary pipe length and evaporator area can omit II magnetic valve (8) or check valve (16), reduce cost more.Wherein, freezer evaporator structure such as Fig. 6 show that on evaporator plate (10), not connected evaporation pipeline (7a), (7b) of two covers connects with other pipeline respectively.
In some cases, according to refrigerating chamber volume and refrigerating chamber volume size, select suitable evaporator area and capillary pipe length under rational matching status, the utility model can form the refrigeration system of showing as Fig. 7, its electric control system such as Fig. 8 show, its operation principle is: when temperature of refrigerating chamber does not reach requirement, polynary working medium is through condenser (2), device for drying and filtering (3), capillary (5), refrigerating evaporator (7), refrigeration evaporator (9) returns compressor (1), at this moment, check valve (16) is closed; After temperature of refrigerating chamber reaches requirement, refrigerating chamber temperature controller (14) action, check valve (16) is opened, multicomponent mixture work medium directly returns compressor (1) through check valve (16), after freezer temperature also reaches requirement, refrigerating chamber temperature controller (13) action, close compressor (1), the kind of refrigeration cycle process finishes.
Claims (6)
1, the two temperature control cooling systems of a kind of novel direct-cooling type comprise compressor, condenser, device for drying and filtering, magnetic valve, capillary, freezer evaporator, refrigerator evaporator etc., it is characterized in that comprising in same refrigeration system following two cover kind of refrigeration cycle,
I: by compressor (1), condenser (2), device for drying and filtering (3), I magnetic valve (4), I capillary (5), freezer evaporator (7), the cryogenic fluid kind of refrigeration cycle that II magnetic valve (8) is formed;
II: by compressor (1), condenser (2), device for drying and filtering (3), I magnetic valve (4), II capillary (6), freezer evaporator (7), II magnetic valve (8), the mixed working fluid kind of refrigeration cycle that refrigerator evaporator (9) is formed.
2, refrigerating system according to claim 1 is characterized in that described refrigerator evaporator (9) is arranged in parallel on the branch road of refrigeration system.
3, refrigerating system according to claim 1 and 2, the II magnetic valve (8) that it is characterized in that being arranged between freezer evaporator (7) and the refrigerator evaporator (9) can be replaced by the check valve (16) that is arranged on the parallel branch.
4, refrigerating system according to claim 1 and 2, after it is characterized in that being arranged at I number and II capillary, the evaporation pipeline (7a) that can not communicate by two covers on same evaporator plate (10) of the freezer evaporator (7) in the refrigerating chamber, (7b) evaporimeter of Zu Chenging is alternative; After wherein pipeline (7a) connects refrigerator evaporator (9), connect compressor (1), another pipeline (7b) directly is connected with compressor (1).
5, refrigerating system according to claim 1 and 2, it is characterized in that in the electric control system of this refrigeration system, when the single-pole double-throw switch (SPDT) (17) in the refrigerating chamber temperature controller (14) is beaten in 1 position, I magnetic valve (4) and II magnetic valve (8) cut off the power supply, and refrigerating chamber temperature controller (14) and refrigerating chamber temperature controller (13) are to connect compressor (1) after in parallel; When single-pole double-throw switch (SPDT) (17) was beaten in 2 positions, I magnetic valve (4) and II magnetic valve (8) back in parallel was connected in series with refrigerating chamber temperature controller (14), and this branch road is in parallel with compressor (1), and refrigerating chamber temperature controller (13) is serially connected with on their main line.
6, refrigerating system according to claim 1 and 2 is characterized in that described magnetic valve is conducting, closes under off-position under "on" position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110664 CN1114035A (en) | 1994-06-20 | 1994-06-20 | Novel direct-cooling type double-temperature double-control refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94110664 CN1114035A (en) | 1994-06-20 | 1994-06-20 | Novel direct-cooling type double-temperature double-control refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1114035A true CN1114035A (en) | 1995-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94110664 Pending CN1114035A (en) | 1994-06-20 | 1994-06-20 | Novel direct-cooling type double-temperature double-control refrigerating system |
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| Country | Link |
|---|---|
| CN (1) | CN1114035A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363704A (en) * | 2013-06-26 | 2013-10-23 | 青岛澳柯玛超低温冷冻设备有限公司 | Connection system structure and operation method for evaporators in refrigeration equipment |
| WO2013159347A1 (en) | 2012-04-27 | 2013-10-31 | 孝感市易生新材料有限公司 | Method for continuously producing high-content high-optical-purity lactate |
| CN105953484A (en) * | 2016-04-26 | 2016-09-21 | 澳柯玛股份有限公司 | Double-capillary-tube refrigerating system of refrigerator |
| CN108800711A (en) * | 2017-04-28 | 2018-11-13 | 青岛海尔智能技术研发有限公司 | Dual temperature area solid-state refrigeration equipment |
| CN111141069A (en) * | 2020-01-19 | 2020-05-12 | 无锡冠亚恒温制冷技术有限公司 | Refrigeration heating temperature control system for aerospace part testing |
-
1994
- 1994-06-20 CN CN 94110664 patent/CN1114035A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159347A1 (en) | 2012-04-27 | 2013-10-31 | 孝感市易生新材料有限公司 | Method for continuously producing high-content high-optical-purity lactate |
| CN103363704A (en) * | 2013-06-26 | 2013-10-23 | 青岛澳柯玛超低温冷冻设备有限公司 | Connection system structure and operation method for evaporators in refrigeration equipment |
| CN103363704B (en) * | 2013-06-26 | 2015-11-18 | 青岛澳柯玛超低温冷冻设备有限公司 | The How It Works of evaporimeter connected system structure in refrigeration plant |
| CN105953484A (en) * | 2016-04-26 | 2016-09-21 | 澳柯玛股份有限公司 | Double-capillary-tube refrigerating system of refrigerator |
| CN108800711A (en) * | 2017-04-28 | 2018-11-13 | 青岛海尔智能技术研发有限公司 | Dual temperature area solid-state refrigeration equipment |
| CN108800711B (en) * | 2017-04-28 | 2020-12-15 | 青岛海尔智能技术研发有限公司 | Double-temperature-zone solid-state refrigeration equipment |
| CN111141069A (en) * | 2020-01-19 | 2020-05-12 | 无锡冠亚恒温制冷技术有限公司 | Refrigeration heating temperature control system for aerospace part testing |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |