CN100535547C - Compressing and injecting mixed cycle refrigerating method and device for electric refrigerator - Google Patents
Compressing and injecting mixed cycle refrigerating method and device for electric refrigerator Download PDFInfo
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- CN100535547C CN100535547C CNB2007100356016A CN200710035601A CN100535547C CN 100535547 C CN100535547 C CN 100535547C CN B2007100356016 A CNB2007100356016 A CN B2007100356016A CN 200710035601 A CN200710035601 A CN 200710035601A CN 100535547 C CN100535547 C CN 100535547C
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Abstract
The invention provides a method for compression-jetting mixed circulation refrigeration for a refrigerator and the arrangement for the circulation refrigeration. Wherein, an injector is connected between the outlets of two evaporimeters of the refrigerating chamber and the freezing chamber of the refrigerator and an air-return pipe of the compressor, so as to mix the refrigerant of different pressures generated by the two evaporimeters of the refrigerating chamber and the freezing chamber, hence form a mixed flow of moderate pressure, which enters into the air-return pipe of the compressor, this will increase the pressure of the returned air of the compressor, and reduce the pressure ratio, and improve the refrigerating performance of the compressor. The invention is of simple structure, easy to manufacture, low cost, and runs reliably, is applicable for connecting with pipelines of different refrigerator systems to improve the evenness and controllability of the temperature in the refrigerating chambers, and reduce the loss in useable energy due to too high temperature difference in the refrigerating chambers, hence to save energy for refrigerators. The invention is applicable for industrial production.
Description
Technical field
The invention discloses a kind of refrigerator cycle refrigerating method and device, be meant a kind of refrigerator compression/injection mixing circulation refrigerating method and device especially.
Background technology
Along with popularizing of household electrical appliance, the power saving of household electric refrigerator more and more receives publicity.Household electric refrigerator all is to carry out throttling with capillary basically both at home and abroad at present, in common two-storage temperature refrigerator, cold-producing medium behind the capillary-compensated enters the evaporimeter of refrigerating chamber and refrigerating chamber successively, keep freezer temperature (18 ℃) and temperature of refrigerating chamber (5 ℃) respectively by same evaporating temperature (-29 ℃ approximately), because of heat transfer temperature difference too big in the refrigerating chamber can cause considerable available energy loss, this situation is then more serious for the two-storage temperature refrigerator of big refrigerating chamber.Therefore, the exploitation refrigerator new circulatory system reaches purpose of energy saving and just seems necessary.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art and provide a kind of by reducing the heat transfer temperature difference of evaporimeter, reduce the irreversible heat transfer loss of evaporimeter, improve compressor return air pressure, reduce the compressor pressure ratio, improve the refrigerator compression/injection mixing circulation refrigerating method and the device of refrigeration system refrigeration performance.
The present invention's----refrigerator compression/injection mixing circulation refrigerating plant is to adopt following proposal to realize: connect an injector between two evaporator outlets of cold storage chamber of refrigerator and refrigerating chamber and compressor return air pipe, described injector comprises main jet, absorption chamber, induction tunnel and four parts of anemostat, the conical through-hole tapering of nozzle body is 30 °～45 ° in the described main jet, and the conical through-hole tapering of nozzle trunnion is 15 °～20 °.
In the present invention's----refrigerator compression/injection mixing circulation refrigerating plant: the tapering in the interior cone hole of mixer is 10 °～15 ° in the described anemostat, and the tapering in cone hole is 14 °～18 ° in the diffuser.
The operation principle of the present invention---refrigerator compression/injection mixing circulation refrigerating method and device is sketched in following: the present invention utilizes the theory of jet pipe and diffuser pipe, and then utilize jet turbulent fluctuation diffusion, realize the transmission of energy and conversion mutually, utilize the working fluid of the refrigerant vapour of refrigerator evaporator (high-pressure side), by the refrigerant vapour of freezer evaporator (low-pressure side) driving fluid as injector as injector.When working fluid is flowed through main jet, the static energy or the heat energy of air-flow change into kinetic energy, working fluid forms high-speed jet and causes parital vacuum at nozzle exit, to making its pressure be lower than the pressure of driving fluid, driving fluid automatically " is entrainmented " advance absorption chamber.Absorption chamber is a cavity, comes driving fluid that an internal environment is provided for working fluid causes parital vacuum, thereby realizes the energy exchange between working fluid and two kinds of fluids of driving fluid.Driving fluid quickens under the effect of working steam after entering absorption chamber; enter mixing chamber then and carry out the speed equilibrium; usually also being accompanied by pressure raises; enter again and form one single even and pressure fluid-mixing placed in the middle in the aux. venturi gradually; subsequently, this fluid enters the diffusion chamber, and speed is constantly slowed down; kinetic energy constantly is converted into static energy, and fluid-mixing slows down to compress and reaches certain back pressure.Realization mixes the fluid of two kinds of different pressures mutually, and energy exchange takes place, and the fluid-mixing that finally forms one pressure placed in the middle is got back to the muffler of compressor, improves the back pressure of compressor, reduces pressure ratio, improves the performance of compressor.
The present invention makes refrigerating chamber and freezer evaporator keep different evaporating temperatures because employing adds an injector formation compression/injection hybrid refrigeration cycle in refrigeration system of refrigerator, by reducing the irreversible heat transfer loss that heat transfer temperature difference reduces evaporimeter, improved compressor return air pressure, reduce the compressor pressure ratio, can effectively improve the refrigeration system refrigeration performance; Especially at the single cycle double-door refrigerator, because of the refrigerator evaporator heat transfer temperature difference bigger, cause the more present situation of available energy loss, adopt refrigerator compression/injection hybrid refrigeration cycle system, the temperature that can regulate cold storage chamber of refrigerator and refrigerating chamber effectively makes full use of shunting action capillaceous, electric expansion valve in the system that can remove controls, improve the refrigerator refrigeration performance, reduce its comprehensive energy consumption level, save the complete machine production cost.
The present invention has simple in structure, and is easy to manufacture, cost is low; Do not have any moving component, can move stably in a long term, need not safeguard; Directly do not consume mechanical energy; Can realize carrying the advantages such as reasonable distribution of energy fluid, be suitable for connecting mutually with the refrigerator system pipeline of various models, the uniformity of realization raising temperature of refrigerating chamber in refrigerator and effectively controlled, and the minimizing available energy loss considerable because of heat transfer temperature difference too big in the refrigerating chamber causes, thereby reach the purpose of refrigerator energy-saving, be suitable for suitability for industrialized production.
Description of drawings
Accompanying drawing compresses/sprays emitter construction schematic diagram in the mixing circulation refrigerating plant for refrigerator of the present invention;
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Referring to accompanying drawing, the present invention's----refrigerator compression/injection mixing circulation refrigerating plant is to connect an injector between two evaporator outlets of cold storage chamber of refrigerator and refrigerating chamber and compressor return air pipe, described injector comprises main jet 1, absorption chamber 2, induction tunnel 4 and 3 four parts of anemostat, described absorption chamber 2 is a three-way pipe, through hole one end at the three-way pipe axis direction is connected with main jet 1, the other end is connected with anemostat 3, is connected with induction tunnel 4 on the third through-hole of three-way pipe; Described main jet 1 is made up of nozzle body 5 and nozzle trunnion 6 two parts, and described nozzle body 5 and nozzle trunnion 6 all are provided with conical through-hole vertically, and both bore the point connection of joining; Described anemostat 3 is made up of mixer 7, aux. venturi 9 and diffuser 8 three parts, and described aux. venturi 9 is a cylindrical hole, the awl point in cone hole in the termination mixer 7, the awl point in cone hole in another termination diffuser 8; The conical through-hole tapering of nozzle body 5 is 30 °～45 ° in the described main jet 1, and the conical through-hole tapering of nozzle trunnion 6 is 15 °～20 °; The tapering in mixer 7 interior cone holes is 10 °～15 ° in the described anemostat, and the tapering in cone holes is 14 °～18 ° in the diffuser 8; Described injector adopts the red copper material to make.
Range of application of the present invention is not limited only to refrigerator, for domestic air conditioning, also can produce the domestic air conditioning injector with same energy-saving effect that is complementary with the air-conditioning duct size.
Claims (2)
1, refrigerator compression/injection mixing circulation refrigerating plant, it is characterized in that: between two evaporator outlets of cold storage chamber of refrigerator and refrigerating chamber and compressor return air pipe, connect an injector, described injector comprises main jet, absorption chamber, induction tunnel and four parts of anemostat, the conical through-hole tapering of nozzle body is 30 °～45 ° in the described main jet, and the conical through-hole tapering of nozzle trunnion is 15 °～20 °.
2, refrigerator compression/injection mixing circulation refrigerating plant according to claim 1 is characterized in that: the tapering in the interior cone hole of mixer is 10 °～15 ° in the described anemostat, and the tapering in cone hole is 14 °～18 ° in the diffuser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100356016A CN100535547C (en) | 2007-08-22 | 2007-08-22 | Compressing and injecting mixed cycle refrigerating method and device for electric refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100356016A CN100535547C (en) | 2007-08-22 | 2007-08-22 | Compressing and injecting mixed cycle refrigerating method and device for electric refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101109595A CN101109595A (en) | 2008-01-23 |
| CN100535547C true CN100535547C (en) | 2009-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100356016A Expired - Fee Related CN100535547C (en) | 2007-08-22 | 2007-08-22 | Compressing and injecting mixed cycle refrigerating method and device for electric refrigerator |
Country Status (1)
| Country | Link |
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| CN (1) | CN100535547C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110113803A1 (en) * | 2009-05-14 | 2011-05-19 | Halla Climate Control Corp. | Multi-evaporation system |
| CN104457008B (en) * | 2014-12-16 | 2016-10-05 | 山东大学 | A kind of ejector of the Cold Chain Logistics ejector refrigeration system for waste heat driven |
| CN110455000A (en) * | 2019-07-24 | 2019-11-15 | 中南大学 | Novel energy-conserving noise reduction cooling cycle system |
-
2007
- 2007-08-22 CN CNB2007100356016A patent/CN100535547C/en not_active Expired - Fee Related
Non-Patent Citations (2)
| Title |
|---|
| 喷射器性能、结构及特殊流动现象研究. 李海军，第83-101. 2005 |
| 喷射器性能、结构及特殊流动现象研究. 李海军，第83-101. 2005 * |
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| Publication number | Publication date |
|---|---|
| CN101109595A (en) | 2008-01-23 |
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Granted publication date: 20090902 Termination date: 20110822 |