CN114623619A - Refrigerating system with powerful liquid/steam spraying function - Google Patents
Refrigerating system with powerful liquid/steam spraying function Download PDFInfo
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- CN114623619A CN114623619A CN202011462607.3A CN202011462607A CN114623619A CN 114623619 A CN114623619 A CN 114623619A CN 202011462607 A CN202011462607 A CN 202011462607A CN 114623619 A CN114623619 A CN 114623619A
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- compressor
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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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
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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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The invention discloses a refrigeration system with powerful liquid/vapor spraying function, which comprises: the refrigeration system also comprises a refrigerant pump, and the refrigerant pump pumps liquid or vapor refrigerant condensed by the condenser into a compression cavity of the compressor. The refrigerant pump, the condenser and the compressor form a cooling loop which forcibly injects refrigerant to the compression cavity of the compressor at specific time, and the injection pressure is controllable.
Description
Technical Field
The invention belongs to the technical field of refrigeration, and particularly relates to a refrigeration system with a powerful liquid/steam spraying function.
Background
The traditional refrigerant liquid spraying or steam spraying system only utilizes the pressure difference between a condenser and a compression cavity of a compressor to spray the refrigerant into the compression cavity, but cannot spray the refrigerant into an exhaust cavity, and the quantity of the sprayed refrigerant is limited by the pressure difference between the condenser and the compression cavity and the diameter of a passage, so that the spraying effect is general.
Disclosure of Invention
In order to solve the technical problem, the invention provides a refrigeration system with a powerful liquid/vapor spraying function.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a refrigeration system with a powerful liquid/vapor spray function, comprising: the refrigeration system also comprises a refrigerant pump, and the refrigerant pump pumps liquid or vapor refrigerant condensed by the condenser into a compression cavity of the compressor.
The invention discloses a refrigerating system with a powerful liquid/steam spraying function.A refrigerant pump, a condenser and a compressor form a liquid/steam supply loop which forcibly sprays refrigerant to a compression cavity of the compressor at specific time. The invention can effectively improve the refrigeration effect of the whole refrigeration system, and the refrigeration performance can be effectively improved.
On the basis of the technical scheme, the following improvements can be made:
preferably, the refrigerant pump is connected to the subcooler, and the refrigerant pump pumps the liquid or vapor refrigerant passing through the subcooler into the compression cavity of the compressor.
By adopting the preferable scheme, the subcooler can cool the liquid or vapor refrigerant pumped into the compressor.
Preferably, the compressor is provided with a refrigerant pipe, one end of the refrigerant pipe is communicated with the compression cavity of the compressor, the other end of the refrigerant pipe is connected with a refrigerant pump, and the refrigerant pump pumps vapor or liquid refrigerant into the compression cavity of the compressor.
Adopt above-mentioned preferred scheme, can quick effectual refrigerant squeeze into compressor compression chamber.
Preferably, a pressure gauge and a pressure sensor are arranged on the refrigerant pipe, the pressure sensor is connected with a refrigerant pump, and the refrigerant pump adjusts the output pressure and the flow rate of the refrigerant pump according to the pressure value acquired by the pressure sensor and the exhaust pressure of the compressor.
By adopting the preferable scheme, the pressure value of the refrigerant pipe is controllable.
Preferably, the refrigerant pump is capable of pumping a vapor or liquid refrigerant into the compressor discharge cavity, and the compressor discharge cavity is a partial cavity which is capable of communicating with the compressor discharge passage and is close to the compressor compression mechanism.
With the above preferred embodiment, the exhaust temperature is further reduced.
Preferably, the injection amount and injection pressure of the refrigerant pumped into the compression chamber and/or the discharge chamber are adjustable by a refrigerant pump.
Adopt above-mentioned preferred scheme, adjust through refrigerant pump.
Preferably, the refrigerant pump is one or more of a variable speed pump, a constant speed pump, a fixed displacement pump and a variable displacement pump.
The preferable scheme is adopted, and the selection is carried out according to specific requirements.
Preferably, the compressor can be a scroll compressor or a rotor compressor or a screw compressor.
By adopting the preferable scheme, the refrigeration system has wide application range.
Preferably, when the compressor is a scroll compressor, the scroll compressor includes: the vortex plate, the static vortex plate and the driving assembly are arranged in the shell, a refrigerant channel is arranged on the static vortex plate, one end of the refrigerant channel is communicated with a refrigerant pipe, the other end of the refrigerant channel is communicated with an inlet of the compression cavity, and the refrigerant pipe is connected with a refrigerant pump.
Adopt above-mentioned preferred scheme, when the compressor is scroll compressor, simple structure can squeeze into the compression chamber of compressor with the refrigerant smoothly.
Preferably, when the compressor is a scroll compressor, the scroll compressor includes: the compressor comprises a shell, a movable scroll plate, a fixed scroll plate and a driving assembly, wherein a compression cavity is formed between the movable scroll plate and the fixed scroll plate, the movable scroll plate, the fixed scroll plate and the driving assembly are arranged in the shell, a refrigerant channel is arranged on the fixed scroll plate, one end of the refrigerant channel is communicated with a refrigerant pipe, the other end of the refrigerant channel is communicated with an inlet of the compression cavity and an exhaust port of the compressor respectively, and the refrigerant pipe is connected with a refrigerant pump.
Adopt above-mentioned preferred scheme, when the compressor is scroll compressor, simple structure can squeeze into the discharge chamber of compressor with the refrigerant smoothly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a block diagram of a refrigeration system with a powerful liquid/vapor spraying function according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a compressor according to an embodiment of the present invention.
Fig. 3 is a second schematic structural diagram of a compressor according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a connection assembly according to an embodiment of the present invention.
Fig. 5 is a left side view of a connection assembly provided by an embodiment of the present invention.
Fig. 6 is a right side view of a connection assembly provided by an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of the connection assembly and the refrigerant channel according to the embodiment of the present invention.
Wherein: the refrigerant compressor comprises a compressor, a shell, a movable scroll, a fixed scroll, a driving assembly, a refrigerant channel, a condenser, a 3 expansion valve, an evaporator, a 5 refrigerant storage tank, a 6 refrigerant pipe, a 7 refrigerant pump, a 8 subcooler, a 9 pressure gauge, a 10 connecting assembly, a 101 first connecting pipe, a 102 second connecting pipe, an 103 internal thread and a 104 reinforcing assembly, wherein the compressor is arranged at the bottom of the shell, the movable scroll is arranged at the top of the shell, the fixed scroll is arranged at the bottom of the shell, and the reinforcing assembly is arranged at the bottom of the shell.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
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.
In order to achieve the object of the present invention, in some embodiments of a refrigeration system with powerful liquid/vapor spraying function, as shown in fig. 1, a refrigeration system with powerful liquid/vapor spraying function includes: the refrigerating system also comprises a refrigerant pump 7, and the refrigerant pump 7 pumps liquid or vapor refrigerant condensed by the condenser 2 into a compression cavity of the compressor 1.
The refrigerant is stored in the refrigerant reservoir 5.
The invention discloses a refrigeration system with a powerful liquid/steam spraying function.A refrigerant pump 7, a condenser 2 and a compressor 1 form a cooling loop which forcibly sprays refrigerant to a compression cavity of the compressor 1 at specific time. The compression chamber of the compressor 1 refers to the non-suction chamber and the closed chamber which is isolated from the suction chamber and the discharge chamber and tends to lead to the discharge high-pressure chamber.
In order to further optimize the implementation effect of the present invention, in other embodiments, the other features are the same, except that the refrigerant pump 7 is connected to the subcooler 8, and the refrigerant pump 7 pumps the liquid or vapor refrigerant passing through the subcooler 8 into the compression cavity of the compressor 1.
Adopt above-mentioned preferred scheme, subcooler 8 can cool down to the refrigerant of squeezing into liquid state or vapour state in the compressor, and subcooler 8's cold source input can the cold junction return circuit of this application system also can come from outside independent system.
As shown in fig. 2, in order to further optimize the implementation effect of the present invention, in other embodiments, other features and technologies are the same, except that a refrigerant pipe 6 is disposed on the compressor 1, one end of the refrigerant pipe 6 is communicated with the compression cavity of the compressor 1, and the other end thereof is connected to a refrigerant pump 7, and the refrigerant pump 7 pumps vapor or liquid refrigerant into the compression cavity of the compressor 1.
Adopt above-mentioned preferred scheme, can quick effectual refrigerant squeeze into compressor 1 compression chamber.
In order to further optimize the implementation effect of the invention, in other embodiments, the other features and technologies are the same, except that a pressure gauge 9 and a pressure sensor are arranged on the refrigerant pipe 6, the pressure sensor is electrically connected with the refrigerant pump, and the refrigerant pump adjusts the output pressure and the flow rate according to the pressure value acquired by the pressure sensor.
By adopting the preferable scheme, the controllable pressure value of the refrigerant pipe 6 is realized.
In order to further optimize the implementation effect of the present invention, in other embodiments, the other features are the same, except that the refrigerant pump 7 can pump the vapor or liquid refrigerant into the compressor discharge cavity, which is a partial cavity that can communicate with the compressor discharge passage and is close to the compressor compression mechanism.
With the above preferred embodiment, the exhaust temperature is further reduced. It should be noted that the compressor discharge chamber of the present invention refers to a region communicating with the discharge port.
Moreover, in the traditional injection mode, the refrigerant is injected into the air suction cavity or the medium-pressure cavity and needs to be compressed, and the refrigerant pump 7 is adopted to pump the vapor-state or liquid-state refrigerant into the exhaust cavity of the compressor, so that the compression is not needed, the abrasion in the compression process caused by dilution of an oil film is avoided, and unexpected beneficial effects are generated.
Further, in addition to the above-described embodiments, the injection amount and the injection pressure of the refrigerant to be driven into the compression chamber and/or the discharge chamber can be adjusted by the refrigerant pump 7.
With the above preferred arrangement, the injection amount and injection pressure can be controlled by the refrigerant pump.
In order to further optimize the implementation effect of the present invention, in other embodiments, the other features are the same, except that the refrigerant pump 7 is one or more of a variable speed pump, a constant speed pump, a fixed displacement pump and a variable displacement pump.
The preferable scheme is adopted, and the selection is carried out according to specific requirements.
The various embodiments above may be implemented in cross-parallel.
The compressor 1 may be, but not limited to, a scroll compressor, a rotor compressor or a screw compressor, and may also be other types of compressors, and the present invention is not limited thereto.
The following description will be made taking a scroll compressor as an example.
As shown in fig. 2, in some embodiments, when the compressor 1 is a scroll compressor, the compressor includes: the scroll compressor comprises a shell 11, a movable scroll 12, a fixed scroll 13 and a driving assembly 14, wherein a compression cavity is formed between the movable scroll 12 and the fixed scroll 13, the movable scroll 12, the fixed scroll 13 and the driving assembly 14 are arranged in the shell 11, a refrigerant channel 15 is arranged on the fixed scroll 13, one end of the refrigerant channel 15 is communicated with a refrigerant pipe 6, the other end of the refrigerant channel is communicated with an inlet of the compression cavity, and the refrigerant pipe 6 is connected with a refrigerant pump 7.
When the compressor is a scroll compressor, the structure is simple, and the refrigerant can be smoothly pumped into the compression cavity of the compressor.
In other embodiments, as shown in fig. 3, when the compressor 1 is a scroll compressor, the compressor includes: the scroll compressor comprises a shell 11, a movable scroll 12, a fixed scroll 13 and a driving assembly 14, wherein a compression cavity is formed between the movable scroll 12 and the fixed scroll 13, the movable scroll 12, the fixed scroll 13 and the driving assembly 14 are arranged in the shell 11, a refrigerant channel 15 is arranged on the fixed scroll 13, one end of the refrigerant channel 15 is communicated with a refrigerant pipe 6, the other end of the refrigerant channel is communicated with an inlet of the compression cavity and an exhaust port of the compressor respectively, and the refrigerant pipe 6 is connected with a refrigerant pump 7.
When the compressor is a scroll compressor, the structure is simple, the refrigerant can be smoothly pumped into the exhaust cavity of the compressor, and the refrigeration effect is better.
As shown in fig. 4-7, further, the refrigerant pipe 6 is connected to the refrigerant channel 15 through a connection assembly 10, the connection assembly 10 includes:
one end of the first connecting pipe 101 is connected with the refrigerant pipe 6 through an internal thread 103 of the first connecting pipe, the other end of the first connecting pipe is connected with the second connecting pipe 102, the inner cavity structure of the first connecting pipe is along the refrigerant transmission direction, and the cross section of the inner cavity of the first connecting pipe is in transition from a round shape to a flat rectangular shape;
and a second connection pipe 102 for connecting the first connection pipe 101 and the refrigerant passage 15.
The connecting component 10 can smoothly and quickly convey the refrigerant to the corresponding compression cavity and/or the exhaust cavity.
Further, the inner wall of the second connecting pipe 102 is smooth, and the caliber of the outlet is larger than that of the inlet, so as to ensure smooth transmission of the refrigerant.
Further, the first connection pipe 101 and the second connection pipe 102 are connected by the reinforcing member 104, so that the connection strength between the two pipes is ensured.
In order to better show the beneficial effects of the compressor with powerful liquid/vapor spraying function, the experimental results of the invention are shown in table 1 on the premise that the suction temperature, the suction pressure and the discharge temperature of the compressor are consistent. (comparison of the experimental machine with a "Cheshi" brand WF09KM scroll compressor)
TABLE 1 exhaust pressure COMPARATIVE TABLE
As can be seen from table 1, the discharge pressure (condensing pressure) of the compressor with powerful liquid spraying/vapor spraying function of the present invention is higher than that of the conventional liquid spraying compressor. The higher the condensing pressure at which the compressor can be operated, the wider the operating range of the compressor, at the same suction pressure and suction temperature.
The above embodiments are merely illustrative of the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the content of the present invention and implement the present invention, and not to limit the scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the scope of the present invention.
Claims (10)
1. A refrigeration system with a powerful liquid/vapor spray function, comprising: the refrigeration system is characterized by further comprising a refrigerant pump, and the refrigerant pump pumps liquid or vapor refrigerants condensed by the condenser into a compression cavity of the compressor.
2. The refrigerating system with strong liquid/vapor spraying function as claimed in claim 1, wherein said coolant pump is connected to a subcooler, and said coolant pump pumps liquid or vapor coolant passing through said subcooler into a compression chamber of said compressor.
3. A refrigerating system with a powerful liquid/vapor spraying function as claimed in claim 1, wherein a refrigerant pipe is provided on the compressor, one end of the refrigerant pipe is communicated with the compression chamber of the compressor, and the other opposite end of the refrigerant pipe is connected with a refrigerant pump, and the refrigerant pump pumps vapor or liquid refrigerant into the compression chamber of the compressor.
4. A refrigerating system with strong liquid/vapor spraying function as claimed in claim 3, wherein a pressure gauge and a pressure sensor are disposed on the refrigerant pipe, the pressure sensor is connected to the refrigerant pump, and the refrigerant pump adjusts the output pressure and flow rate thereof according to the pressure value collected by the pressure sensor and the discharge pressure of the compressor.
5. A refrigerating system with a powerful liquid/vapor spraying function as claimed in claim 3, wherein the refrigerant pump is capable of pumping refrigerant in vapor or liquid state into the compressor discharge chamber, and the compressor discharge chamber is a partial chamber capable of communicating with the compressor discharge passage and being close to the compressor compression mechanism.
6. A refrigerating system with a strong liquid/vapor spraying function as claimed in claim 5, wherein the injection amount and injection pressure of the refrigerant driven into said compression chamber and/or said discharge chamber can be adjusted by a refrigerant pump.
7. A refrigerating system with strong liquid/vapor spraying function as claimed in claim 1, wherein said coolant pump is one or more of variable speed pump, constant speed pump, fixed displacement pump and variable displacement pump.
8. Refrigeration system with powerful liquid/vapor spray function according to any of claims 1 to 7, wherein the compressor can be a scroll compressor or a rotor compressor or a screw compressor.
9. A refrigerating system with an intensive liquid/vapor spraying function as claimed in claim 8, wherein when the compressor is a scroll compressor, the scroll compressor comprises: the vortex plate type compressor comprises a shell, a movable vortex plate, a fixed vortex plate and a driving assembly, wherein a compression cavity is formed between the movable vortex plate and the fixed vortex plate, the movable vortex plate, the fixed vortex plate and the driving assembly are arranged in the shell, a refrigerant channel is arranged on the fixed vortex plate, one end of the refrigerant channel is communicated with a refrigerant pipe, the other end of the refrigerant channel is communicated with an inlet of the compression cavity, and the refrigerant pipe is connected with a refrigerant pump.
10. A refrigeration system with enhanced liquid/vapor spraying as claimed in claim 8, wherein when said compressor is a scroll compressor, said scroll compressor comprises: the compressor comprises a shell, a movable scroll plate, a fixed scroll plate and a driving assembly, wherein a compression cavity is formed between the movable scroll plate and the fixed scroll plate, the movable scroll plate, the fixed scroll plate and the driving assembly are arranged in the shell, the fixed scroll plate is provided with a refrigerant channel, one end of the refrigerant channel is communicated with a refrigerant pipe, the other end of the refrigerant channel is communicated with an inlet of the compression cavity and an exhaust port of the compressor respectively, and the refrigerant pipe is connected with a refrigerant pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011462607.3A CN114623619A (en) | 2020-12-11 | 2020-12-11 | Refrigerating system with powerful liquid/steam spraying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011462607.3A CN114623619A (en) | 2020-12-11 | 2020-12-11 | Refrigerating system with powerful liquid/steam spraying function |
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| Publication Number | Publication Date |
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| CN114623619A true CN114623619A (en) | 2022-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011462607.3A Pending CN114623619A (en) | 2020-12-11 | 2020-12-11 | Refrigerating system with powerful liquid/steam spraying function |
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| CN (1) | CN114623619A (en) |
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- 2020-12-11 CN CN202011462607.3A patent/CN114623619A/en active Pending
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