CN206269436U - A kind of flow controller for adapting to cryogenic quick freezing - Google Patents

A kind of flow controller for adapting to cryogenic quick freezing Download PDF

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Publication number
CN206269436U
CN206269436U CN201621059801.6U CN201621059801U CN206269436U CN 206269436 U CN206269436 U CN 206269436U CN 201621059801 U CN201621059801 U CN 201621059801U CN 206269436 U CN206269436 U CN 206269436U
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CN
China
Prior art keywords
magnetic valve
valve
throttle
throttle capillary
temperature
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Expired - Fee Related
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CN201621059801.6U
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Chinese (zh)
Inventor
刘金平
陈肖依
许雄文
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South China University of Technology SCUT
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South China University of Technology SCUT
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Priority to CN201621059801.6U priority Critical patent/CN206269436U/en
Application granted granted Critical
Publication of CN206269436U publication Critical patent/CN206269436U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of flow controller for adapting to cryogenic quick freezing;Including two capillaries being sequentially connected in series on pipeline, the two capillaries are respectively a throttle capillary tube and second throttle capillary;A valve is parallel with the two ends of second throttle capillary;Valve is magnetic valve;When magnetic valve is opened, refrigerant is flowed out after entrance sequentially passes through throttle capillary tube, a magnetic valve by outlet, and completion is once throttled;When closed electromagnetic valve, refrigerant is flowed out after sequentially passing through throttle capillary tube, a second throttle capillary by outlet, and completion carries out second throttle.This flow controller only includes two capillaries and a magnetic valve, efficiently solves the problems, such as the small, high cost complicated with electric expansion valve process structure of conventional heat expansion valve temperature-control range.Capillary pipe length is determined according to evaporating pressure, temperature fall time can be effectively reduced, it is ensured that fast refrigerating cabinet is efficient, stabilization, reliability service.

Description

A kind of flow controller for adapting to cryogenic quick freezing
Technical field
The utility model is related to the throttling technology in refrigerating field, more particularly to a kind of throttling for adapting to cryogenic quick freezing Device.
Background technology
In conventional refrigeration field, low-temp. refrigerator kind of refrigeration cycle uses heating power expansion valve, and temperature regulating range is small, it is difficult to will Temperature quickly drops to subzero twenties degrees Celsius, and according to electric expansion valve, then control operation is complicated, will to accuracy of data acquisition Ask higher, system complex and reliability reduction.
The content of the invention
The purpose of this utility model is the shortcoming and defect for overcoming above-mentioned prior art, there is provided a kind of simple structure, easily In the flow controller of the adaptation cryogenic quick freezing of operation.Preferably solve that conventional heat expansion valve temperature-control range is small and electronic expansion The complicated problem of valve process structure.
The utility model is achieved through the following technical solutions:
It is a kind of to adapt to the flow controller of cryogenic quick freezing, including two capillaries on pipeline are sequentially connected in series, the two Capillary is respectively a throttle capillary tube and second throttle capillary;A valve is parallel with the two ends of second throttle capillary Door.
The valve is magnetic valve;When magnetic valve is opened, refrigerant sequentially passes through the capillary that once throttles by entrance 1 Flowed out by outlet 2 after pipe, magnetic valve, completion is once throttled;When closed electromagnetic valve, refrigerant is sequentially passed through and once throttled Flowed out by outlet 2 after capillary, second throttle capillary, completion carries out second throttle.
Throttle capillary tube and second throttle capillary are helical form.
The magnetic valve by temperature controller control, when temperature is higher than preset value, open by temperature controller control drive magnetic valve;When When temperature is less than preset value, temperature controller control drive magnetic valve is closed.
The utility model adapts to the throttling method of the flow controller of cryogenic quick freezing, and it comprises the following steps:Work as magnetic valve During opening, refrigerant is flowed out after entrance 1 sequentially passes through throttle capillary tube, a magnetic valve by outlet 2, and completion is carried out once Throttling;When closed electromagnetic valve, refrigerant is flowed out after sequentially passing through throttle capillary tube, a second throttle capillary by outlet 2, Completion carries out second throttle.
The utility model adapts to the flow controller of cryogenic quick freezing, answering in the single-stage refrigeration cycle loop of household freezer With:When household freezer temperature exceedes preset temperature, open magnetic valve, refrigerant by entrance 1 sequentially pass through throttle capillary tube, Flowed out by outlet 2 after magnetic valve, completion is once throttled, and now evaporating temperature gradually rises, and refrigerating capacity gradually increases, freezing Case temperature is quickly down to preset temperature;
If household freezer temperature need to be continued to be down to below preset temperature, magnetic valve is closed, refrigerant is sequentially passed through once Flowed out by outlet 2 after throttle capillary tube, second throttle capillary, completion carries out second throttle, evaporating pressure reduction, evaporating temperature Reduce, make household freezer temperature continue to reduce.
The utility model has the following advantages and effect relative to prior art:
The utility model flow controller.By the switch of magnetic valve, the choke pressure drop of refrigerant is controlled.Realize evaporating pressure Two stage pressures are adjusted, and realize the purpose of single-stage refrigeration cycle system refrigerator fast cooling.
The utility model flow controller, only including two capillaries and a magnetic valve, efficiently solves conventional heat expansion Small, the high cost problem complicated with electric expansion valve process structure of valve temperature-control range.Capillary pipe length is determined according to evaporating pressure, Temperature fall time can be effectively reduced, it is ensured that fast refrigerating cabinet is efficient, stabilization, reliability service.
The utility model technological means is simple and easy to do, by using second throttle technique in single-stage refrigeration cycle, efficiently, Simply realize low-temperature quick-freezing.
Brief description of the drawings
Fig. 1 is the flow controller structural representation that the utility model adapts to cryogenic quick freezing.
Fig. 2 is the flow controller application schematic diagram that the utility model adapts to cryogenic quick freezing.
Specific embodiment
The utility model is more specifically described in detail with reference to specific embodiment.
Embodiment
As shown in Figure 1, 2.The flow controller of cryogenic quick freezing is adapted to the utility model discloses a kind of, including is sequentially connected in series Two capillaries on pipeline, the two capillaries are respectively a throttle capillary tube and second throttle capillary;Secondary The two ends of throttle capillary tube are parallel with a valve.
The valve is magnetic valve;When magnetic valve is opened, refrigerant sequentially passes through the capillary that once throttles by entrance 1 Flowed out by outlet 2 after pipe, magnetic valve, completion is once throttled;Due to the section face of the tubing internal diameter at connection magnetic valve two ends The long-pending area of section much larger than capillary inner diameter, general more than 3 to 6 times, due to the difference of captured area, therefore when magnetic valve is beaten When opening, refrigerant is flowed out after entrance 1 sequentially passes through throttle capillary tube, a magnetic valve by outlet 2;Work as closed electromagnetic valve When, refrigerant is flowed out after sequentially passing through throttle capillary tube, a second throttle capillary by outlet 2, and completion carries out second throttle.
Throttle capillary tube and second throttle capillary are helical form.
The magnetic valve by temperature controller control, when temperature is higher than preset value, open by temperature controller control drive magnetic valve;When When temperature is less than preset value, temperature controller control drive magnetic valve is closed.
The utility model adapts to the throttling method of the flow controller of cryogenic quick freezing, and it comprises the following steps:Work as magnetic valve During opening, refrigerant is flowed out after entrance 1 sequentially passes through throttle capillary tube, a magnetic valve by outlet 2, and completion is carried out once Throttling;When closed electromagnetic valve, refrigerant is flowed out after sequentially passing through throttle capillary tube, a second throttle capillary by outlet 2, Completion carries out second throttle.
The utility model adapts to the flow controller of cryogenic quick freezing, answering in the single-stage refrigeration cycle loop of household freezer With:When household freezer temperature exceedes preset temperature, open magnetic valve, refrigerant by entrance 1 sequentially pass through throttle capillary tube, Flowed out by outlet 2 after magnetic valve, completion is once throttled, and now evaporating temperature gradually rises, and refrigerating capacity gradually increases, freezing Case temperature is quickly down to preset temperature;
If need to continue to be down to below preset temperature by household freezer (fast refrigerating cabinet) temperature, magnetic valve is closed, refrigerant is successively By being flowed out by outlet 2 after throttle capillary tube, a second throttle capillary, completion carries out second throttle, and evaporating pressure is reduced, Evaporating temperature reduction, makes household freezer temperature continue to reduce.
Cryogenic refrigeration is realized in single-stage refrigeration cycle.Can be required according to different fast refrigerating cabinet temperature settings, capillary can be with Random length is processed as, different length can influence the size of evaporating pressure, and capillary is more long, and restriction effect is more obvious, evaporated Pressure is smaller, and evaporating temperature is lower.
The kind of refrigeration cycle flow of a food fast refrigerating cabinet is illustrated in figure 2, the experimental bench of use is a kind of system of single stage compress Cooling system, including compressor, condenser, evaporator, the flow controller of adaptation cryogenic quick freezing of the present utility model.
As can be seen that the outlet of compressor unit connects condenser in Fig. 2, after working medium exchanges heat within the condenser, by this The flow controller of the adaptation cryogenic quick freezing of utility model, flows into evaporator and is exchanged heat, and finally returns to compressor and completes circulation. It is -1 DEG C to set medium temperature, and when food temperature is higher than -1 DEG C in fast refrigerating cabinet, magnetic valve is opened, and refrigeration system inner refrigerant is only By a throttle capillary tube, now, evaporating pressure is higher, the high cooling efficiency of refrigeration system, and refrigerating capacity is big, temperature in fast refrigerating cabinet Degree can extremely -1 DEG C of fast cooling, food moisture completion refrigerating process;When food temperature reaches -1 degree Celsius in fast refrigerating cabinet, electromagnetism Valve is closed, and refrigerant reduces evaporating pressure by second throttle, evaporating temperature reduction, and frozen food is continued extremely so as to reach Required temperature.
As described above, just can preferably realize the utility model.
Implementation method of the present utility model is simultaneously not restricted to the described embodiments, and other are any without departing from of the present utility model Spirit Essence and the change, modification, replacement made under principle, combine, simplify, should be equivalent substitute mode, being included in Within protection domain of the present utility model.

Claims (3)

1. it is a kind of adapt to cryogenic quick freezing flow controller, it is characterised in that:Including two capillarys being sequentially connected in series on pipeline Pipe, the two capillaries are respectively a throttle capillary tube and second throttle capillary;At the two ends of second throttle capillary simultaneously It is associated with a valve;
The valve is magnetic valve;When magnetic valve is opened, refrigerant by entrance (1) sequentially pass through throttle capillary tube, Flowed out by exporting (2) after magnetic valve, completion is once throttled;When closed electromagnetic valve, refrigerant is sequentially passed through and once throttled Flowed out by exporting (2) after capillary, second throttle capillary, completion carries out second throttle.
2. the flow controller of cryogenic quick freezing is adapted to according to claim 1, it is characterised in that:Throttle capillary tube Helical form is with second throttle capillary.
3. the flow controller of cryogenic quick freezing is adapted to according to claim 2, it is characterised in that:The magnetic valve is by temperature controller Control, when temperature is higher than preset value, temperature controller control drive magnetic valve is opened;When temperature is less than preset value, temperature controller control Drive magnetic valve processed is closed.
CN201621059801.6U 2016-09-18 2016-09-18 A kind of flow controller for adapting to cryogenic quick freezing Expired - Fee Related CN206269436U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201621059801.6U CN206269436U (en) 2016-09-18 2016-09-18 A kind of flow controller for adapting to cryogenic quick freezing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201621059801.6U CN206269436U (en) 2016-09-18 2016-09-18 A kind of flow controller for adapting to cryogenic quick freezing

Publications (1)

Publication Number Publication Date
CN206269436U true CN206269436U (en) 2017-06-20

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106288549A (en) * 2016-09-18 2017-01-04 华南理工大学 A kind of reducer adapting to cryogenic quick freezing and method and application
CN109668345A (en) * 2017-10-17 2019-04-23 艾力集团有限责任公司-卡皮贾尼 Thermodynamic system, machine and heat treatment method including thermodynamic system
US11882849B2 (en) 2017-10-17 2024-01-30 Ali Grouup S.R.L.—Carpigiani Thermodynamic system, machine comprising the thermodynamic system and thermal treatment method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106288549A (en) * 2016-09-18 2017-01-04 华南理工大学 A kind of reducer adapting to cryogenic quick freezing and method and application
CN109668345A (en) * 2017-10-17 2019-04-23 艾力集团有限责任公司-卡皮贾尼 Thermodynamic system, machine and heat treatment method including thermodynamic system
CN109668345B (en) * 2017-10-17 2022-05-24 艾力集团有限责任公司-卡皮贾尼 Thermodynamic system, machine comprising a thermodynamic system and method for heat treatment
US11882849B2 (en) 2017-10-17 2024-01-30 Ali Grouup S.R.L.—Carpigiani Thermodynamic system, machine comprising the thermodynamic system and thermal treatment method

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20170620

Termination date: 20190918

CF01 Termination of patent right due to non-payment of annual fee