CN214620170U - Refrigeration or heat pump system with powerful steam injection enthalpy increasing function - Google Patents
Refrigeration or heat pump system with powerful steam injection enthalpy increasing function Download PDFInfo
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- CN214620170U CN214620170U CN202022981880.9U CN202022981880U CN214620170U CN 214620170 U CN214620170 U CN 214620170U CN 202022981880 U CN202022981880 U CN 202022981880U CN 214620170 U CN214620170 U CN 214620170U
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Abstract
The utility model discloses a refrigeration or heat pump system with powerful vapour injection enthalpy gain function, include: the system comprises a first condenser, an evaporator, a first expansion valve, a second expansion valve, a heat exchanger, a compressor and a steam injection enthalpy-increasing pump; the compressor, the first condenser, the heat exchanger, the second expansion valve, the evaporator and the compressor are sequentially connected to form a first main loop for completing a refrigeration or heating process; the first condenser is also connected with a steam injection enthalpy increasing pump through a first expansion valve and a heat exchanger, and the steam injection enthalpy increasing pump pumps the steam-state refrigerant condensed by the first condenser into a compression cavity of the compressor. The utility model discloses first condenser, first expansion valve, heat exchanger, steam injection enthalpy-increasing pump and compressor form to the confession vapour return circuit of compressor compression chamber forced injection refrigerant when specific. The utility model discloses can effectively promote whole refrigeration or heat pump system's refrigeration or the effect of heating.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner, concretely relates to refrigeration or heat pump system with powerful vapour injection enthalpy-increasing function.
Background
The traditional steam injection enthalpy-increasing system only utilizes the pressure difference between a condenser and a compression cavity of a compressor to inject a refrigerant into the compression cavity, the refrigerant cannot be injected into an exhaust cavity, and the injection refrigerant quantity is limited by the pressure difference between the condenser and the compression cavity and the diameter of a passage, so that the injection effect is general.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a refrigeration or heat pump system with powerful vapour injection enthalpy-increasing function.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a refrigeration or heat pump system with enhanced vapor injection enthalpy, comprising: the system comprises a first condenser, an evaporator, a first expansion valve, a second expansion valve, a heat exchanger, a compressor and a steam injection enthalpy-increasing pump;
the compressor, the first condenser, the heat exchanger, the second expansion valve, the evaporator and the compressor are sequentially connected to form a first main loop for completing a refrigeration or heating process;
the first condenser is also connected with a steam injection enthalpy increasing pump through a first expansion valve and a heat exchanger, and the steam injection enthalpy increasing pump pumps the steam-state refrigerant condensed by the first condenser into a compression cavity of the compressor.
The utility model discloses a refrigeration or heat pump system with powerful vapour increasing enthalpy function of spouting, first condenser, first expansion valve, heat exchanger, vapour increasing enthalpy pump and compressor form to the steam supply return circuit of compressor compression chamber forced injection refrigerant when specific, the utility model discloses can effectively promote whole refrigeration or heat pump system's refrigeration or the effect of heating.
The evaporation temperature of the first expansion valve can be reduced by using the suction pressure drop of the steam injection enthalpy-increasing pump, so that the supercooling temperature of the refrigerant in front of the second expansion valve is further reduced by the heat exchanger, and the running range and the refrigerating capacity of the refrigerating system are improved.
Because the refrigerating system is provided with the jet steam enthalpy-increasing pump with powerful jet, the heating capacity of the system can be obviously higher than that of the traditional jet steam enthalpy-increasing compressor system theoretically.
On the basis of the technical scheme, the following improvements can be made:
preferably, the refrigeration system further includes: and the second condenser is connected with the steam injection enthalpy increasing pump, and the steam-state refrigerant condensed by the first condenser and the second condenser is pumped into a compression cavity of the compressor by the steam injection enthalpy increasing pump.
With the above preferred embodiment, the refrigerant to be injected into the compression chamber of the compressor can be further cooled.
As the preferred scheme, a refrigerant pipe is arranged on the compressor, one end of the refrigerant pipe is communicated with the compression cavity of the compressor, the other opposite end of the refrigerant pipe is connected with the steam-injection enthalpy-increasing pump, and the steam-state refrigerant is pumped into the compression cavity of the compressor by the steam-injection enthalpy-increasing pump.
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 the steam injection enthalpy increasing pump, and the steam injection enthalpy increasing pump adjusts the output pressure and the flow rate 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 steam injection enthalpy-increasing pump can pump the vapor refrigerant into a compressor exhaust cavity, and the compressor exhaust cavity is a partial cavity which can be communicated with a compressor exhaust channel and is close to a compressor compression mechanism.
With the above preferred embodiment, the exhaust temperature is further reduced.
Preferably, the injection amount and injection pressure of the refrigerant injected into the compression chamber and/or the discharge chamber can be adjusted by a vapor injection enthalpy increasing pump.
By adopting the preferable scheme, the adjustment is carried out by the steam injection enthalpy-increasing pump.
Preferably, the steam injection enthalpy-increasing 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 shell, move vortex dish, quiet vortex dish and drive assembly, move and form the compression chamber between vortex dish and the quiet vortex dish, move vortex dish, quiet vortex dish and drive assembly and set up in the shell, be equipped with the refrigerant passageway on quiet vortex dish, the one end and the refrigerant pipe intercommunication of refrigerant passageway, its other end and compression chamber entry intercommunication, the refrigerant pipe with spout the vapour and increase enthalpy pump and be connected.
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 steam injection enthalpy increasing 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 that are required 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 or heat pump system with a powerful vapor injection enthalpy increasing function according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of the connection assembly provided by the embodiment of the present invention.
Fig. 3 is a left side view of the connection assembly provided by the embodiment of the present invention.
Fig. 4 is a right side view of the connection assembly provided by the embodiment of the present invention.
Fig. 5 is a schematic structural view illustrating a connection between a connection assembly and a refrigerant channel according to an embodiment of the present invention.
Fig. 6 is a graph showing the change of the heating capacity of each system from-15 ℃ to 15 ℃ under the indoor working condition of 20/-, outdoor working condition.
Wherein: the heat exchanger comprises a compressor, 11 refrigerant channels, 2 first condensers, 3 first expansion valves, 4 second expansion valves, 5 heat exchangers, 6 refrigerant pipes, 7 steam injection enthalpy-increasing pumps, 8 evaporators, 9 second condensers, 10 connecting assemblies, 101 first connecting pipes, 102 second connecting pipes, 103 internal threads and 104 reinforcing assemblies.
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 described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The use of the ordinal terms "first," "second," "third," etc., to describe a common object merely indicate that different instances of like objects are being referred to, and are not intended to imply that the objects so described must be in a given sequence, either temporally, spatially, in ranking, or in any other manner.
Also, the expression "comprising" an element is an expression of "open" which merely means that there is a corresponding component, and should not be interpreted as excluding additional components.
In order to achieve the object of the present invention, in some embodiments of a refrigeration or heat pump system with enhanced vapor injection enthalpy, as shown in fig. 1, the refrigeration system includes: the system comprises a first condenser 2, an evaporator 8, a first expansion valve 3, a second expansion valve 4, a heat exchanger 5, a compressor 1 and a steam injection enthalpy-increasing pump 7;
the compressor 1, the first condenser 2, the heat exchanger 5, the second expansion valve 4, the evaporator 8 and the compressor 1 are sequentially connected to form a first main loop for completing a refrigeration or heating process;
the first condenser 2 is also connected with a steam injection enthalpy increasing pump through a first expansion valve 3 and a heat exchanger 5, and the steam injection enthalpy increasing pump 7 pumps the steam-state refrigerant condensed by the first condenser 2 into a compression cavity of the compressor 1.
The utility model discloses a refrigeration or heat pump system with powerful vapour increasing enthalpy function, first condenser 2, first expansion valve 3, heat exchanger 5, vapour increasing enthalpy pump and compressor 1 form to the confession vapour return circuit of compressor 1 compression chamber forced injection refrigerant when specific. The utility model discloses can effectively promote whole refrigeration or heat pump system's refrigeration or the effect of heating.
The evaporation temperature of the first expansion valve 3 can be reduced by using the suction pressure drop of the steam injection enthalpy-increasing pump, so that the supercooling temperature of the refrigerant before the second expansion valve 4 is further reduced by the heat exchanger 5, and the running range and the refrigerating capacity of the refrigerating system are improved.
Because the refrigerating system is provided with the jet steam enthalpy-increasing pump with powerful jet, the heating capacity of the system can be obviously higher than that of the traditional jet steam enthalpy-increasing compressor system theoretically.
In order to further optimize the implementation effect of the present invention, in other embodiments, the rest of the feature technologies are the same, except that the refrigeration system further includes: and the second condenser 9 are connected with the steam injection enthalpy increasing pump 7, and the steam injection enthalpy pump pumps the steam-state refrigerant condensed by the first condenser 2 and the second condenser 9 into a compression cavity of the compressor 1.
With the above preferred embodiment, the refrigerant to be injected into the compression chamber of the compressor 1 can be further cooled.
As shown in fig. 2, in order to further optimize the utility model discloses an implement the effect, in some other embodiments, all the other characteristic techniques are the same, and the difference lies in, is equipped with refrigerant pipe 6 on the compressor 1, and refrigerant pipe 6's one end and compressor 1 compression chamber intercommunication, its relative other end and steam injection enthalpy-increasing pump 7 are connected, and steam injection enthalpy-increasing pump 7 squeezes into compressor 1 compression chamber with the vapour state refrigerant.
Adopt above-mentioned preferred scheme, can quick effectual refrigerant squeeze into compressor 1 compression chamber.
In order to optimize further the utility model discloses an implement the effect, in some other embodiments, all the other characteristic techniques are the same, and the difference lies in, is equipped with manometer and pressure sensor on refrigerant pipe 6, and pressure sensor is connected with jet enthalpy pump 7 electricity, and jet enthalpy pump 7 adjusts its output pressure and flow according to the pressure value of pressure sensor's collection.
By adopting the preferable scheme, the controllable pressure value of the refrigerant pipe 6 is realized.
In order to optimize the utility model discloses an implement the effect further, in some other embodiments, all the other characteristic techniques are the same, and the difference lies in, and the steam injection enthalpy-increasing pump 7 can squeeze into the compressor exhaust chamber with vapour state refrigerant, and the compressor exhaust chamber is for communicating with each other and being close to compressor compression mechanism's partial cavity with compressor exhaust passage.
With the above preferred embodiment, the exhaust temperature is further reduced. It is worth noting that the area which can be communicated with the row opening is within the protection scope of the utility model.
Further, in addition to the above-described embodiments, the injection amount and the injection pressure of the refrigerant to be injected into the compression chamber and/or the discharge chamber can be adjusted by the vapor injection enthalpy increasing pump 7.
With the above preferred arrangement, the injection amount and injection pressure can be controlled by the vapor injection enthalpy increasing pump 7.
In order to further optimize the implementation effect of the present invention, in other embodiments, the rest of the feature technologies are the same, and the difference is that the vapor injection enthalpy-increasing 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 traditional air supply mode has the defects that the air supply temperature is higher and the cooling effect is not obvious under the working condition that the compression ratio is particularly large, for example, the pressure ratio exceeds 10, the air supply amount is insufficient or the air supply temperature is subjected to heat exchange. The utility model relates to a refrigeration or heat pump system with powerful vapour increasing enthalpy function will spout vapour increasing enthalpy pump 7 and will squeeze into the compression intracavity of compressor 1 through the vapour state refrigerant of 2 condensations of first condenser, and the cooling is effectual, has guaranteed air supplement volume and efficiency, simultaneously, has reduced exhaust temperature, and factor of safety is higher, has produced unexpected beneficial effect.
The following description will be made taking a scroll compressor as an example.
In some embodiments, when the compressor 1 is a scroll compressor, the compressor comprises: the device 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 11 is arranged on the fixed scroll plate, one end of the refrigerant channel 11 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 steam injection enthalpy-increasing 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, when the compressor 1 is a scroll compressor, the 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, a refrigerant channel 11 is arranged on the fixed scroll plate, one end of the refrigerant channel 11 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 steam injection enthalpy-increasing 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.
Further, the diameter of the refrigerant pipe 6 is not larger than that of the refrigerant channel 11 connected with the refrigerant pipe.
As shown in fig. 2-5, further, the refrigerant pipe 6 is connected to the refrigerant channel 11 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 11.
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 show better the utility model discloses refrigeration or heat pump system's beneficial effect with powerful steam injection enthalpy-increasing function, the utility model discloses carry out standard conditions heating performance contrast with ordinary system, ordinary enthalpy-increasing system, the experimental result is as shown in table 1 and fig. 6.
Table 1 is a comparison table of heating performance of three products with the same displacement and different types of Shanpai
Can discover through table 1 and fig. 6, under each operating mode the utility model discloses refrigeration or heat pump system's that has powerful steam injection enthalpy-increasing function ability of heating ability has improved about 700w in the ability of heating of ordinary enthalpy-increasing system, has promoted more than 5%.
The above embodiments are only for illustrating the technical conception and the features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.
Claims (10)
1. A refrigeration or heat pump system with enhanced vapor injection enthalpy, comprising: the system comprises a first condenser, an evaporator, a first expansion valve, a second expansion valve, a heat exchanger, a compressor and a steam injection enthalpy-increasing pump;
the compressor, the first condenser, the heat exchanger, the second expansion valve, the evaporator and the compressor are sequentially connected to form a first main loop for completing a refrigeration or heating process;
the first condenser is further connected with the steam injection enthalpy-increasing pump through a first expansion valve and a heat exchanger, and the steam injection enthalpy-increasing pump pumps the steam-state refrigerant condensed by the first condenser into a compression cavity of the compressor.
2. A refrigeration or heat pump system with enhanced vapor injection enthalpy according to claim 1, further comprising: and the second condenser is connected with the steam injection enthalpy increasing pump, and the steam state refrigerant condensed by the first condenser and the second condenser is pumped into a compression cavity of the compressor by the steam injection enthalpy increasing pump.
3. A refrigeration or heat pump system with enhanced vapor injection and enthalpy addition functions as claimed in claim 1, wherein a refrigerant pipe is disposed on the compressor, one end of the refrigerant pipe is communicated with the compression chamber of the compressor, the opposite end of the refrigerant pipe is connected to a vapor injection and enthalpy addition pump, and the vapor refrigerant is pumped into the compression chamber of the compressor by the vapor injection and enthalpy addition pump.
4. A refrigeration or heat pump system with a powerful vapor injection and enthalpy increasing function according to claim 3, characterized in that a pressure gauge and a pressure sensor are arranged on the refrigerant pipe, the pressure sensor is connected with the vapor injection and enthalpy increasing pump, and the vapor injection and enthalpy increasing pump adjusts its output pressure and flow rate according to the pressure value collected by the pressure sensor and the discharge pressure of the compressor.
5. A refrigeration or heat pump system as claimed in claim 1, wherein said vapor injection enthalpy pump is capable of pumping vapor refrigerant into said compressor discharge chamber, said compressor discharge chamber being a portion of the chamber that is in communication with the compressor discharge passage and adjacent to the compressor compression mechanism.
6. A refrigeration or heat pump system with enhanced vapor injection enthalpy function according to claim 1, characterized in that the injection amount and injection pressure of the refrigerant into the compression chamber and/or the discharge chamber can be adjusted by the vapor injection enthalpy pump.
7. A refrigeration or heat pump system with enhanced vapor injection enthalpy function according to claim 1, wherein the vapor injection enthalpy pump is one or more of a variable speed pump, a constant speed pump, a fixed displacement pump, and a variable displacement pump.
8. A refrigeration or heat pump system with enhanced vapor injection enthalpy according to claim 1, characterized in that the compressor can be a scroll compressor or a rotor compressor or a screw compressor.
9. A refrigeration or heat pump system with enhanced vapor injection enthalpy functionality according to claim 1, wherein when the compressor is a scroll compressor, the scroll compressor comprises: the device 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 the refrigerant pipe is connected with the steam injection enthalpy increasing pump.
10. A refrigeration or heat pump system with enhanced vapor injection enthalpy functionality according to claim 1, wherein when the compressor is a scroll compressor, the 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 the steam injection enthalpy-increasing pump.
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| CN202022981880.9U CN214620170U (en) | 2020-12-11 | 2020-12-11 | Refrigeration or heat pump system with powerful steam injection enthalpy increasing function |
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| CN202022981880.9U CN214620170U (en) | 2020-12-11 | 2020-12-11 | Refrigeration or heat pump system with powerful steam injection enthalpy increasing function |
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