CN106196376B - Unit type air conditioner with integrated multi-evaporating temperature structure - Google Patents
Unit type air conditioner with integrated multi-evaporating temperature structure Download PDFInfo
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- CN106196376B CN106196376B CN201610711743.9A CN201610711743A CN106196376B CN 106196376 B CN106196376 B CN 106196376B CN 201610711743 A CN201610711743 A CN 201610711743A CN 106196376 B CN106196376 B CN 106196376B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F25B39/00—Evaporators; Condensers
- F25B39/02—Evaporators
Abstract
The invention relates to a unit air conditioner with an integrated multi-evaporating temperature evaporator, which comprises a box body, wherein the box body is provided with an evaporator, a plurality of compressors and a plurality of condensers, and is characterized in that: the evaporator is an integrated evaporator with a multi-evaporation temperature structure and is provided with a plurality of refrigerant input ends, a plurality of refrigerant output ends and a plurality of independent evaporation pipelines, wherein the evaporation pipelines are respectively connected with the refrigerant input ends of a compressor through the refrigerant output ends, and the refrigerant output ends of the compressors are sequentially connected with the refrigerant input ends of the evaporation pipelines through a condenser and a throttling device to form a plurality of independent refrigeration loops; each refrigeration loop can form a multi-evaporation-temperature independent refrigeration loop structure by setting different evaporation temperatures; an air inlet and an air supply opening are arranged in the box body, and the air inlet is communicated with the air inlet end of the evaporator to form a cold air channel passing through a plurality of independent refrigerating loops. The invention has the outstanding beneficial effects of high coefficient of performance (COP) of refrigeration and the like.
Description
Technical Field
The present invention relates to a unit type air conditioner having an integrated multi-evaporating temperature structure. Belongs to the technical field of heating ventilation and air conditioning.
Background
In the building, the energy consumption of the air conditioning system can account for 40% -50% of the total energy consumption of the building, and in the air conditioning system adopting the unit air conditioner, the unit air conditioner is used as a refrigerating host and an air conditioning terminal, so that the compressor can provide refrigerating capacity and the fan can deliver refrigerating capacity, and the energy consumption of the air conditioning system can account for more than 80% of the energy consumption of the air conditioning system, and therefore, the energy-saving operation of the unit air conditioner is related to the energy-saving rate of the whole air conditioning system.
Since the coefficient of performance COP of a refrigeration system is proportional to the evaporation temperature of an evaporator, the higher the evaporation temperature, the higher the COP of refrigeration.
In the prior art, a unit air conditioner is generally provided with 1-4 unequal compressors according to the refrigerating capacity, four refrigerating loops are provided, the evaporating temperatures of the refrigerating loops are equal, and the evaporator temperature also needs to be kept at a lower value in order to ensure a lower air outlet temperature. Therefore, the improvement of the refrigeration coefficient of performance (COP) of the refrigeration system is limited, and the defect of low COP exists.
Therefore, in order to improve the COP of the refrigeration performance of the air conditioner, the invention provides a high-efficiency unit type air conditioner provided with an integrated multi-evaporation temperature evaporator from the aspect of energy cascade utilization.
Disclosure of Invention
The invention aims to solve the problem that the prior art unit type air conditioner has low coefficient of performance (COP) of refrigeration, and provides a unit type air conditioner with an integrated multi-evaporation temperature evaporator. The invention has the characteristics of obtaining higher average evaporation temperature, enabling the unit air conditioner to operate efficiently and energy-effectively and having high coefficient of performance (COP) of refrigeration.
The aim of the invention can be achieved by adopting the following technical scheme:
the utility model provides a unit formula air conditioner with many evaporating temperature evaporimeters of integral type, includes the box, is equipped with evaporimeter, many compressors and a plurality of condenser in the box, its structural feature lies in: the evaporator is an integrated evaporator with a multi-evaporation temperature structure and is provided with a plurality of refrigerant input ends, a plurality of refrigerant output ends and a plurality of independent evaporation pipelines, wherein the evaporation pipelines are respectively connected with the refrigerant input ends of a compressor through the refrigerant output ends, and the refrigerant output ends of the compressors are sequentially connected with the refrigerant input ends of the evaporation pipelines through the condenser and the throttling device to form a plurality of independent refrigeration loops; each refrigeration loop can form a multi-evaporation-temperature independent refrigeration loop structure by setting different evaporation temperatures; the box body is internally provided with an air inlet and an air supply outlet, the air inlet is communicated with the air inlet end of the evaporator, the air outlet end of the evaporator is communicated with the air supply outlet through a fan or is directly communicated with the air supply outlet, and a cold air channel passing through a plurality of independent refrigerating loops is formed, so that a unit type air conditioner with a plurality of evaporating temperature structures is formed.
The aim of the invention can also be achieved by adopting the following technical scheme:
further, the box body is sequentially provided with a compressor, a condenser section, an evaporator section, a fan section and an air outlet section from bottom to top, the side wall of the evaporator section is provided with an air inlet, the air outlet section is provided with an air supply outlet, the evaporator section, the fan section and the air outlet section are sequentially communicated, and the fan section is provided with a fan; the compressors and the condensers are arranged in the compressor section, the evaporator is arranged in the evaporator section, the air inlet end of the evaporator is connected with the air inlet, and the air outlet end of the evaporator is sequentially communicated with the air supply outlet through the fan section and the air outlet section, so that an air conditioning channel is formed.
Further, the evaporator is disposed obliquely in the evaporator section to increase the contact surface of the intake air of the intake port with the evaporator piping structure.
Further, an evaporator, two compressors and two condensers are arranged in the box body, wherein one of the compressors is a low-temperature compressor, and the other compressor is a high-temperature compressor; the refrigerant output end of the low-temperature compressor is connected with one of the refrigerant inlets of the evaporator sequentially through one of the condensers and one of the throttling devices, and one of the refrigerant outlets of the evaporator is connected with the refrigerant input end of the low-temperature compressor to form a low-temperature refrigeration loop; the refrigerant output end of the high-temperature compressor sequentially passes through the second condenser and the second throttling device and is connected with the second refrigerant inlet of the evaporator, and the second refrigerant outlet of the evaporator is connected with the refrigerant input end of the high-temperature compressor to form a high-temperature refrigerating loop; i.e. two refrigeration loops with high and low evaporation temperatures are formed in the box.
Further, an evaporator, three compressors and three condensers are arranged in the box body, wherein one of the compressors is a low-temperature compressor, the other compressor is a medium-temperature compressor, and the other compressor is a high-temperature compressor; the refrigerant output end of the low-temperature compressor is connected with one of the refrigerant inlets of the evaporator sequentially through one of the condensers and one of the throttling devices, and one of the refrigerant outlets of the evaporator is connected with the refrigerant input end of the low-temperature compressor to form a low-temperature refrigeration loop; the second refrigerant outlet of the evaporator is connected with the second refrigerant input end of the medium temperature compressor to form a medium temperature refrigeration loop; the refrigerant output end of the high-temperature compressor sequentially passes through the third condenser and the fourth throttling device to be connected with the third refrigerant inlet of the evaporator, and the third refrigerant outlet of the evaporator is connected with the refrigerant input end of the high-temperature compressor to form a high-temperature refrigerating loop; i.e. three refrigeration loops with high, medium and low evaporation temperatures are formed in the box.
Further, the same reason is that four or more than four refrigerating loops of high, secondary high, medium and low are formed in the box body, and a plurality of refrigerating loops with different evaporating temperature structures are formed.
Further, the evaporator is an integrated direct expansion evaporator with multiple evaporation temperatures, and comprises a shell, radiating fins and an evaporation tube structure, wherein the radiating fins and the evaporation tube structure are arranged in the shell, the radiating fins are arranged on the surface of the evaporation tube structure, the evaporation tube structure comprises a plurality of groups of refrigerant evaporation inlet/outlet tube structures, and all the evaporator structures are arranged in the inner cavity of the shell; each group of refrigerant evaporation inlet/outlet pipe structures are mutually independent and are respectively provided with a refrigerant input end and a refrigerant output end, the refrigerant input ends of each group of refrigerant evaporation inlet/outlet pipe structures are connected with different refrigerant input ends through throttling devices, and the refrigerant output ends are connected with the refrigerant input ends of different compressors to form a plurality of mutually independent refrigeration loops; the refrigerant with different temperatures is input through different refrigerant input ends, so that a stepped evaporation pipeline structure with a plurality of evaporation temperatures in a single shell is formed; the radiating fins arranged on the surface of the evaporating pipe structure are of a continuous and uninterrupted integral structure, and an easy-cleaning and low-wind-resistance structure is formed.
Further, the evaporating pipe structure comprises three groups of refrigerant evaporating inlet/outlet pipe structures, wherein the first group of refrigerant evaporating inlet/outlet pipe structures are formed by a first row of refrigerant evaporating inlet/outlet pipes 1a, the second group of refrigerant evaporating inlet/outlet pipe structures are formed by second to third rows of refrigerant evaporating inlet/outlet pipes 1b-1c, and the third group of refrigerant evaporating inlet/outlet pipe structures are formed by fourth to sixth rows of refrigerant evaporating inlet/outlet pipes 1d-1 f; in the first group of refrigerant evaporation inlet/outlet pipe structures, the refrigerant output end of an external condenser is communicated with the input end of a throttling device through a refrigerant pipe, the output end of the throttling device is connected with the input end of a refrigerant liquid separator, and a plurality of output ends of the refrigerant liquid separator are respectively communicated with the evaporator refrigerant inlet pipe in the first row of refrigerant evaporation inlet/outlet pipe 1a through a liquid separation pipe to form a two-return heat absorption structure; the output ends of the refrigerant inlet pipes of the evaporators are communicated with the input ends of refrigerant outlet pipes of the evaporators, the output ends of the refrigerant outlet pipes of the evaporators are respectively communicated with the input ends of refrigerant collecting pipes, the output ends of the refrigerant collecting pipes are externally connected with the input ends of refrigerant pipes of the compressors through refrigerant circulating pipes, and one of the evaporators in the refrigeration cycle is formed by a first row of refrigerant evaporation inlet/outlet pipes 1 a; similarly, in the second group of refrigerant evaporation inlet/outlet pipe structures, the second to third rows of refrigerant evaporation inlet/outlet pipes 1b-1c constitute the second evaporator in the refrigeration cycle; in the third group of refrigerant evaporation inlet/outlet pipe structures, the refrigerant evaporation inlet/outlet pipe structures form the third evaporator in the refrigeration cycle by the fourth to sixth rows of refrigerant evaporation inlet/outlet pipes 1d-1 f.
Further, external refrigerant enters the input end of the throttling device through the refrigerant circulating pipe, the output end of the throttling device is connected with the input end of the refrigerant liquid separator, the output end of the refrigerant liquid separator is respectively communicated with the refrigerant inlet pipe of the evaporator in the same group of refrigerant evaporation inlet/outlet pipe groups through a plurality of liquid separation pipes, and a plurality of refrigerant output pipes in the same group of refrigerant evaporation inlet/outlet pipe groups are communicated with the refrigerant circulating pipe through a refrigerant collecting pipe and are connected with the input end of the refrigerant pipe of the compressor through the refrigerant circulating pipe; the evaporator refrigerant inlet pipe and the refrigerant output pipes of different refrigerant evaporation inlet/outlet pipe groups are different in number, or the input refrigerants are different, so that a stepped evaporation pipeline structure with a plurality of evaporation temperatures is formed.
Further, the fins of the evaporator are of a continuous uninterrupted structure, so that cleaning is facilitated, and resistance of a wind system is reduced.
The invention has the advantages and beneficial effects that
1. The evaporator is an integrated evaporator with a multi-evaporation temperature structure and is provided with a plurality of refrigerant input ends, a plurality of refrigerant output ends and a plurality of independent evaporation pipelines, wherein the evaporation pipelines are respectively connected with the refrigerant input ends of a compressor through the refrigerant output ends, and the refrigerant output ends of the compressors are sequentially connected with the refrigerant input ends of the evaporation pipelines through a condenser and a throttling device to form a plurality of independent refrigeration loops; each refrigeration loop forms an independent refrigeration loop structure with multiple evaporating temperatures by accessing refrigerants with different temperatures; therefore, the problem that the refrigeration coefficient of performance COP of the unit type air conditioner in the prior art is low can be solved, and the unit type air conditioner has the advantages that higher average evaporation temperature can be obtained, the unit type air conditioner can operate in a high-efficiency and energy-saving mode, the refrigeration coefficient of performance COP is high, and the like.
2. The invention can adopt a multi-head unit type air conditioner, the refrigerating loops corresponding to the compressors are designed as independent loops, but share one evaporator with multiple evaporating temperatures, and according to the principle of energy cascade utilization, the air to be treated flows in from a high evaporating temperature section and flows out from a low evaporating temperature section by setting different evaporating temperatures of the refrigerating loops in turn from high to low, so as to finish the cooling treatment of the air. The evaporation temperature setting principle is to combine the factors such as the refrigerating capacity of each compressor, the number of heat exchange tubes of the evaporator, the air treatment requirement to be treated and the like, so that the overall refrigerating efficiency of the unit type air conditioner is kept to the greatest extent, and compared with a conventional unit, the unit type air conditioner has the advantage that higher average evaporation temperature can be obtained, and the overall refrigerating efficiency of the unit type air conditioner is higher.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the present invention.
Fig. 2 is a schematic block diagram of embodiment 1 of the present invention.
Fig. 3 is a schematic view showing the external structure of an evaporator according to embodiment 1 of the present invention.
Fig. 4 is a schematic partial structure of an evaporator according to embodiment 1 of the present invention.
Fig. 5 is a schematic structural view of embodiment 2 of the present invention.
Fig. 6 is a schematic block diagram of embodiment 2 of the present invention.
Detailed Description
Specific example 1:
referring to fig. 1 and 2, the present embodiment includes a box 30, in which an evaporator 4, a plurality of compressors and a plurality of condensers are disposed in the box 30, where the evaporator 4 is an integral evaporator with a multi-evaporation-temperature structure, and has a plurality of refrigerant input ends, a plurality of refrigerant output ends and a plurality of independent evaporation pipelines, where the evaporation pipelines are connected to the refrigerant input ends of one compressor through the refrigerant output ends, and the refrigerant output ends of the compressors are connected to the refrigerant input ends of the evaporation pipelines sequentially through the condensers and a throttling device, so as to form a plurality of independent refrigeration loops; each refrigeration loop forms an independent refrigeration loop structure with multiple evaporating temperatures by accessing refrigerants with different temperatures; the box 30 is provided with an air inlet 15 and an air supply outlet 17, the air inlet 15 is communicated with the air inlet end of the evaporator 4, the air outlet end of the evaporator 4 is communicated with the air supply outlet 17 through a fan 16 or is directly communicated with the air supply outlet 17, and a cold air channel passing through a plurality of independent refrigeration loops is formed, so that a unit type air conditioner with a plurality of evaporating temperature structures is formed.
In this embodiment:
the box body 30 is sequentially provided with a compressor section 30-1, an evaporator section 30-2, a fan section 30-3 and an air outlet section 30-4 from bottom to top, the side wall of the evaporator section 30-2 is provided with an air inlet 15, the air outlet section 30-4 is provided with an air supply outlet 17, the evaporator section 30-2, the fan section 30-3 and the air outlet section 30-4 are communicated, and the fan section 30-3 is provided with a fan 16; the compressors and the condensers are arranged in the compressor section 30-1, the evaporator 4 is arranged in the evaporator section 30-2, the air inlet end 13 of the evaporator 4 is connected with the air inlet 15, and the air outlet end 14 is sequentially communicated with the air outlet 17 through the fan section 30-3 and the air outlet section 30-4 to form an air conditioning channel.
The evaporator 4 is placed obliquely in the evaporator section 30-2 to enlarge the contact surface of the inlet air 15 with the pipe structure of the evaporator 4.
The evaporator 4, two compressors and two condensers are arranged in the box 30, wherein one of the compressors 1 is a low-temperature compressor, and the other compressor 10 is a high-temperature compressor; the refrigerant output end of the low-temperature compressor is connected with one of the refrigerant inlets 7 of the evaporator 4 sequentially through one of the condensers and one of the throttling devices, and one of the refrigerant outlets 8 of the evaporator 4 is connected with the refrigerant input end of the low-temperature compressor to form a low-temperature refrigeration loop; the refrigerant output end of the high-temperature compressor sequentially passes through the second condenser and the second throttling device to be connected with the second refrigerant inlet 11 of the evaporator 4, and the second refrigerant outlet 12 of the evaporator 4 is connected with the refrigerant input end of the high-temperature compressor to form a high-temperature refrigerating loop; i.e., a high and a low two refrigeration loops are formed in the tank 30.
The embodiment comprises the following steps: the device comprises a compressor 1, a condenser 2, a throttling device 3, an evaporator 4 with 2 evaporation temperatures, a cooling water inlet end 5, a cooling water outlet end 6, an evaporator low evaporation temperature section refrigerant inlet 7, an evaporator low evaporation temperature section refrigerant outlet 8, a refrigerant pipe 9, a compressor 10 corresponding to a high temperature evaporation temperature refrigeration loop, an evaporator high evaporation temperature section refrigerant inlet 11, an evaporator high evaporation temperature section refrigerant outlet 12, a processed air inlet 13 and a processed air outlet 14, wherein the compressor 1, the condenser 2, the throttling device 3, the evaporator 4, the cooling water inlet end 5, the cooling water outlet end 6, the evaporator low evaporation temperature section refrigerant inlet 7, the evaporator low evaporation temperature section refrigerant outlet 8, the refrigerant pipe 9, the compressor 10, the evaporator high evaporation temperature section refrigerant inlet 11, the evaporator high evaporation temperature section refrigerant outlet 12 and the processed air inlet 14 are all arranged. The air conditioner comprises an air inlet 15, a fan section 30-3, a fan 16 (1 or more), an air supply outlet 17 (the position of which can be adjusted according to the need), an air outlet section 30-4 and a condensate water interface 18.
In fig. 2, the left and right sides are independent refrigerating loops of the unit type air conditioner, the evaporator is shared by the two refrigerating loops, but the inner refrigerant pipes are independently arranged.
High evaporating temperature refrigeration refrigerant loop: after the refrigerant is compressed by the compressor 10 corresponding to the high-evaporation-temperature refrigerating loop, the refrigerant enters the condenser 2, is condensed and released by the condenser 2, enters the throttling device 3, enters the high-evaporation-temperature section in the evaporator from the refrigerant inlet 11 of the high-evaporation-temperature section of the evaporator after being throttled, flows out from the refrigerant outlet 12 of the high-evaporation-temperature section of the evaporator after absorbing heat and evaporating, is sucked into the compressor by the compressor 10, and completes the refrigerating refrigerant loop.
Low evaporating temperature refrigerant loop: after the refrigerant is compressed by the compressor 1 corresponding to the low-evaporation-temperature refrigeration loop, the refrigerant enters the condenser 2, enters the throttling device 3 after being condensed and released by the condenser 2, enters the low-evaporation-temperature section in the evaporator from the refrigerant inlet 7 of the low-evaporation-temperature section of the evaporator after being throttled, flows out from the refrigerant outlet 8 of the low-evaporation-temperature section of the evaporator after absorbing heat and evaporating, is sucked into the compressor by the compressor 1, and completes the refrigeration refrigerant loop.
An air treatment loop: the processed air enters the high evaporation temperature section of the evaporator from the air inlet 13, then flows through the low evaporation temperature section of the evaporator in series, is discharged from the outlet 14 after being cooled, and is sent out from the air supply outlet 18, thus completing the air conditioning process.
The air treatment process of the embodiment can set 2 different evaporation temperatures of the evaporator according to the actual treatment process, such as 10 ℃ and 13 ℃, and can obtain higher average evaporation temperature than a unit with the same evaporation temperature (10 ℃) in general, thereby obtaining higher refrigeration efficiency, and the fins of the matched evaporator are continuous and uninterrupted, which is beneficial to cleaning and reducing the resistance of a wind system.
Referring to fig. 3 and 4, the evaporator 4 is an integral multi-evaporation-temperature direct expansion evaporator, which comprises a shell 4-0, a radiating fin 4-3 and an evaporation tube structure 4-2, wherein the radiating fin 4-3 and the evaporation tube structure 4-2 are arranged in the shell 4-0, the radiating fin 4-3 is arranged on the surface of the evaporation tube structure 4-2, the evaporation tube structure 4-2 comprises a plurality of groups of refrigerant evaporation inlet/outlet tube structures, and all the refrigerant evaporation inlet/outlet tube structures are arranged in an inner cavity of the shell 4-0; each group of refrigerant evaporation inlet/outlet pipe structures are mutually independent and are respectively provided with a refrigerant input end and a refrigerant output end, the refrigerant input ends of each group of refrigerant evaporation inlet/outlet pipe structures are connected with different refrigerant input ends through throttling devices 4-8, and the refrigerant output ends are connected with the refrigerant input ends of different compressors to form a plurality of mutually independent refrigeration loops; the refrigerant with different temperatures is input through different refrigerant input ends, so that a stepped evaporation pipeline structure with a plurality of evaporation temperatures in a single shell is formed; the radiating fins 4-3 arranged on the surface of the evaporating pipe structure 4-2 are of a continuous and uninterrupted integral structure, and form an easy-cleaning and low-wind-resistance structure.
The evaporation tube structure 4-2 includes three sets of refrigerant evaporation inlet/outlet tube structures, the first set of refrigerant evaporation inlet/outlet tube structures is composed of a first row of refrigerant evaporation inlet/outlet tubes 1a, the second set of refrigerant evaporation inlet/outlet tube structures is composed of second to third rows of refrigerant evaporation inlet/outlet tubes 1b-1c, and the third set of refrigerant evaporation inlet/outlet tube structures is composed of fourth to sixth rows of refrigerant evaporation inlet/outlet tubes 1d-1 f; in the first group of refrigerant evaporation inlet/outlet pipe structures, the refrigerant output end of an external condenser is communicated with the input end of a throttling device 4-8 through a refrigerant pipe 4-9, the output end of the throttling device 4-8 is connected with the input end of a refrigerant liquid separator 4-6, and a plurality of output ends of the refrigerant liquid separator 4-6 are respectively communicated with an evaporator refrigerant inlet pipe 4-16 in a first row of refrigerant evaporation inlet/outlet pipe 1a after passing through a liquid separation pipe 4-15 to form a two-return heat absorption structure; the output ends of the evaporator refrigerant inlet pipes 4-16 are communicated with the input ends of refrigerant output pipes 4-17, the output ends of a plurality of refrigerant output pipes 4-17 are respectively communicated with the input ends of refrigerant collecting pipes 4-7, the output ends of the refrigerant collecting pipes 4-7 are externally connected with the refrigerant input ends 4-12 of a compressor through refrigerant circulating pipes 4-18, and one of the evaporators in the refrigeration cycle is formed by a first row of refrigerant evaporation inlet/outlet pipes 1 a; similarly, in the second group of refrigerant evaporation inlet/outlet pipe structures, the second to third rows of refrigerant evaporation inlet/outlet pipes 1b-1c constitute the second evaporator in the refrigeration cycle; in the third group of refrigerant evaporation inlet/outlet pipe structures, the refrigerant evaporation inlet/outlet pipe structures form the third evaporator in the refrigeration cycle by the fourth to sixth rows of refrigerant evaporation inlet/outlet pipes 1d-1 f.
The external refrigerant enters the input end of the throttling device 4-8 through the refrigerant circulation pipe, the output end of the throttling device 4-8 is connected with the input end of the refrigerant liquid separator 4-6, the output end of the refrigerant liquid separator 4-6 is respectively communicated with the evaporator refrigerant inlet pipe 4-16 in the same group of refrigerant evaporation inlet/outlet pipe group through a plurality of liquid separation pipes 4-15, a plurality of refrigerant output pipes 4-17 in the same group of refrigerant evaporation inlet/outlet pipe group are communicated with the refrigerant circulation pipe 4-18 through the refrigerant collecting pipe 4-7, and the output end of the refrigerant circulation pipe 4-18 is connected with the input end of the refrigerant pipe 4-12 of the compressor; the number of the evaporator refrigerant inlet pipes 4-16 and the number of the plurality of refrigerant outlet pipes 4-17 of different refrigerant evaporation inlet/outlet pipe groups are different, or the number of the input refrigerant mediums are different, so that a stepped evaporation pipeline structure with a plurality of evaporation temperatures is formed. The fins of the evaporator 4 are of continuous and uninterrupted structure, so as to facilitate cleaning and reduce the resistance of the wind system.
Specific example 2:
referring to fig. 5 and 6, the feature of this embodiment 2 is: the evaporator 4, three compressors and three condensers are arranged in the box 30, wherein one of the compressors is a low-temperature compressor, the other compressor is a medium-temperature compressor, and the other compressor is a high-temperature compressor; the refrigerant output end of the low-temperature compressor is connected with one of the refrigerant inlets of the evaporator 4 sequentially through one of the condensers and one of the throttling devices, and one of the refrigerant outlets of the evaporator 4 is connected with the refrigerant input end of the low-temperature compressor to form a low-temperature refrigeration loop; the second refrigerant output end of the medium temperature compressor is connected with the second refrigerant inlet of the evaporator 4 sequentially through the second condenser and the second throttling device, and the second refrigerant outlet of the evaporator 4 is connected with the second refrigerant input end of the medium temperature compressor to form a medium temperature refrigeration loop; the refrigerant output end of the high-temperature compressor sequentially passes through the third condenser and the fourth throttling device to be connected with the third refrigerant inlet of the evaporator 4, and the third refrigerant outlet of the evaporator 4 is connected with the refrigerant input end of the high-temperature compressor to form a high-temperature refrigerating loop; i.e., three refrigeration loops of high, medium and low are formed in the cabinet 30.
In this example 2:
1 is a compressor corresponding to a low evaporation temperature refrigeration loop, 2 is a condenser, 3 is a throttling device, 4 is an evaporator with three evaporation temperatures, 5 is cooling water inlet, 6 is cooling water outlet, 7 is a refrigerant inlet of the low evaporation temperature section of the evaporator, 8 is a refrigerant outlet of the low evaporation temperature section of the evaporator, the device is characterized in that the device is composed of a refrigerant pipe 9, a compressor corresponding to a medium-temperature evaporation temperature refrigeration loop 10, an evaporation temperature section refrigerant inlet in an evaporator 11, an evaporation temperature section refrigerant outlet in the evaporator 12, a processed air inlet 13 and a processed air outlet 14. 15 is a unit air conditioner air inlet, 30-3 is a fan section, 16 is a fan (1 or more), 17 is an air supply outlet (the position can be adjusted according to the requirement), 30-4 is an air outlet section, 20 is a condensed water interface, 21 is a compressor corresponding to a high evaporation temperature refrigeration loop, 22 is a refrigerant inlet of an evaporator high evaporation temperature section, and 23 is a refrigerant outlet of the evaporator high evaporation temperature section.
In fig. 6, the left, middle and right are independent refrigerating loops of the unit type air conditioner, the evaporator is shared by three refrigerating loops, but the inner refrigerant pipes are independently arranged.
High evaporating temperature refrigeration refrigerant loop: after the refrigerant is compressed by the compressor 21 corresponding to the high-evaporation-temperature refrigerating loop, the refrigerant enters the condenser 2, is condensed and released by the condenser 2, enters the throttling device 3, enters the high-evaporation-temperature section in the evaporator from the refrigerant inlet 22 of the high-evaporation-temperature section of the evaporator after being throttled, flows out from the refrigerant outlet 23 of the high-evaporation-temperature section of the evaporator after absorbing heat and evaporating, is sucked into the compressor by the compressor 21, and completes the refrigerating refrigerant loop.
Medium evaporating temperature refrigeration refrigerant loop: after the refrigerant is compressed by the compressor 10 corresponding to the medium-evaporation-temperature refrigeration loop, the refrigerant enters the condenser 2, is condensed and released by the condenser 2, enters the throttling device 3, enters the medium-evaporation-temperature section in the evaporator from the refrigerant inlet 11 of the evaporation-temperature section in the evaporator after being throttled, flows out from the refrigerant outlet 12 of the evaporation-temperature section in the evaporator after absorbing heat and evaporating, is sucked into the compressor by the compressor 10, and completes the refrigeration refrigerant loop.
Low evaporating temperature refrigerant loop: after the refrigerant is compressed by the compressor 1 corresponding to the low-evaporation-temperature refrigeration loop, the refrigerant enters the condenser 2, enters the throttling device 3 after being condensed and released by the condenser 2, enters the low-evaporation-temperature section in the evaporator from the refrigerant inlet 7 of the low-evaporation-temperature section of the evaporator after being throttled, flows out from the refrigerant outlet 8 of the low-evaporation-temperature section of the evaporator after absorbing heat and evaporating, is sucked into the compressor by the compressor 1, and completes the refrigeration refrigerant loop.
An air treatment loop: the processed air enters the high evaporating temperature section of the evaporator from the air inlet 13, then flows through the middle evaporating temperature section and the low evaporating temperature section of the evaporator in series in sequence, is discharged from the outlet 14 after being cooled, and is sent out from the air supply outlet 18, thus completing the air conditioning process.
The treatment process of the embodiment can set 3 different evaporation temperatures of the evaporator according to the actual treatment process, such as 10 ℃, 12.5 ℃ and 15 ℃, and can obtain higher average evaporation temperature than a unit with the same evaporation temperature (10 ℃) in general, thereby obtaining higher refrigeration efficiency, and the fins of the matched evaporator are continuous and uninterrupted, thereby being beneficial to cleaning and reducing the resistance of a wind system.
The details are the same as in example 1.
Other embodiments:
other embodiments of the invention are characterized in that: four or more than four refrigerating loops of high, secondary high, medium and low are formed in the case 30, and a plurality of refrigerating loops having different temperature structures are formed. The rest is the same as in embodiment 1 or embodiment 2.
Compared with the air conditioning system of a common unit type air conditioner, the air inlet temperature of the direct expansion type evaporator for treating air is about 27 ℃, the air outlet temperature is about 15 ℃, the evaporation temperature is generally about 9 ℃ and is used for guaranteeing the air outlet temperature, and in practice, the evaporation temperature of the evaporator at the air inlet position is 27 ℃, the evaporation temperature of the air inlet position can be properly improved, the lower temperature of the air outlet temperature can be guaranteed, the use requirement can be met, but the integral evaporation temperature of the evaporator can be improved, and the refrigeration COP is higher.
Claims (10)
1. The utility model provides a unit formula air conditioner with many evaporating temperature evaporimeters of integral type, includes box (30), is equipped with evaporimeter (4), many compressors and a plurality of condenser in box (30), its characterized in that: the evaporator (4) is an integrated evaporator with a multi-evaporation-temperature structure and is provided with a plurality of refrigerant input ends, a plurality of refrigerant output ends and a plurality of independent evaporation pipelines, wherein each independent evaporation pipeline is connected with the refrigerant input end of one compressor through the refrigerant output end, and the refrigerant output end of the compressor is connected with the refrigerant input ends of the evaporation pipelines through the condenser and the throttling device in sequence to form a plurality of independent refrigeration loops; each refrigeration loop forms an independent refrigeration loop structure with multiple evaporation temperatures by setting different evaporation temperatures; an air inlet (15) and an air supply opening (17) are arranged in the box body (30), the air inlet (15) is communicated with the air inlet end of the evaporator (4), the air outlet end of the evaporator (4) is communicated with the air supply opening (17) through a fan (16) or is directly communicated with the air supply opening (17), and a cold air channel passing through a plurality of independent refrigerating loops is formed, so that a unit type air conditioner with a plurality of evaporating temperature structures is formed.
2. The unit air conditioner having an integrated multiple evaporating temperature evaporator as set forth in claim 1, wherein: the box body (30) is sequentially provided with a compressor section (30-1), an evaporator section (30-2), a fan section (30-3) and an air outlet section (30-4) from bottom to top, an air inlet (15) is formed in the side wall of the evaporator section (30-2), an air supply opening (17) is formed in the air outlet section (30-4), the evaporator section (30-2), the fan section (30-3) and the air outlet section (30-4) are communicated by people, and a fan (16) is arranged in the fan section (30-3); the compressors and the condensers are arranged in the compressor section (30-1), the evaporator (4) is arranged in the evaporator section (30-2), the air inlet end (13) of the evaporator (4) is connected with the air inlet (15) and the air outlet end (14) sequentially pass through the fan section (30-3) and the air outlet section (30-4) to be communicated with the air supply outlet (17) to form an air conditioning channel.
3. A unit air conditioner having an integrated multiple evaporating temperature evaporator as in claim 2, wherein: the evaporator (4) is obliquely arranged in the evaporator section (30-2) so as to enlarge the contact surface between the inlet air of the air inlet (15) and the pipeline structure of the evaporator (4).
4. A unit air conditioner having an integrated multiple evaporating temperature evaporator as claimed in claim 2 or 3, wherein: an evaporator (4), two compressors and two condensers are arranged in the box body (30), one of the compressors (1) is a low-temperature compressor, and the other compressor (10) is a high-temperature compressor; the refrigerant output end of the low-temperature compressor is connected with one of the refrigerant inlets (7) of the evaporator (4) sequentially through one of the condensers and one of the throttling devices, and one of the refrigerant outlets (8) of the evaporator (4) is connected with the refrigerant input end of the low-temperature compressor to form a low-temperature refrigeration loop; the refrigerant output end of the high-temperature compressor sequentially passes through the second condenser and the second throttling device to be connected with the second refrigerant inlet (11) of the evaporator (4), and the second refrigerant outlet (12) of the evaporator (4) is connected with the refrigerant input end of the high-temperature compressor to form a high-temperature refrigeration loop; namely, a high refrigeration loop and a low refrigeration loop are formed in the box body (30).
5. A unit air conditioner having an integrated multiple evaporating temperature evaporator as claimed in claim 2 or 3, wherein: an evaporator (4), three compressors and three condensers are arranged in the box body (30), wherein one of the compressors is a low-temperature compressor, the other compressor is a medium-temperature compressor, and the other compressor is a high-temperature compressor; the refrigerant output end of the low-temperature compressor is connected with one of the refrigerant inlets of the evaporator (4) sequentially through one of the condensers and one of the throttling devices, and one of the refrigerant outlets of the evaporator (4) is connected with the refrigerant input end of the low-temperature compressor to form a low-temperature refrigeration loop; the second refrigerant output end of the medium temperature compressor is connected with the second refrigerant inlet of the evaporator (4) sequentially through the second condenser and the second throttling device, and the second refrigerant outlet of the evaporator (4) is connected with the second refrigerant input end of the medium temperature compressor to form a medium temperature refrigeration loop; the refrigerant output end of the high-temperature compressor sequentially passes through the third condenser and the fourth refrigerant inlet of the throttle device and is connected with the third refrigerant inlet of the evaporator (4), and the third refrigerant outlet of the evaporator (4) is connected with the refrigerant input end of the high-temperature compressor to form a high-temperature refrigerating loop; namely, three refrigeration loops of high, medium and low are formed in the box body (30).
6. A unit air conditioner having an integrated multiple evaporating temperature evaporator as claimed in claim 2 or 3, wherein: four or more than four refrigerating loops of high, secondary high, medium and low are formed in the box body (30), and a plurality of refrigerating loops with different temperature structures are formed.
7. A unit air conditioner having an integrated multiple evaporating temperature evaporator as claimed in claim 2 or 3, wherein: the evaporator (4) is an integrated direct expansion type evaporator with multiple evaporation temperatures, and comprises a shell (4-0), radiating fins (4-3) and an evaporation tube structure (4-2), wherein the radiating fins (4-3) and the evaporation tube structure (4-2) are arranged in the shell (4-0), the radiating fins (4-3) are arranged on the surface of the evaporation tube structure (4-2), the evaporation tube structure (4-2) comprises a plurality of groups of refrigerant evaporation inlet/outlet tube structures, and all the refrigerant evaporation inlet/outlet tube structures are arranged in the inner cavity of the shell (4-0); each group of refrigerant evaporation inlet/outlet pipe structures are mutually independent and are respectively provided with a refrigerant input end and a refrigerant output end, the refrigerant input ends of each group of refrigerant evaporation inlet/outlet pipe structures are connected with different refrigerant input ends through throttling devices (4-8), and the refrigerant output ends are connected with the refrigerant input ends of different compressors to form a plurality of mutually independent refrigeration loops; the refrigerant with different temperatures is input through different refrigerant input ends, so that a stepped evaporation pipeline structure with a plurality of evaporation temperatures in a single shell is formed; the radiating fins (4-3) arranged on the surface of the evaporating pipe structure (4-2) are of a continuous and uninterrupted integral structure, and form a structure which is easy to clean and low in wind resistance.
8. The unit air conditioner having an integrated multiple evaporating temperature evaporator as recited in claim 7, wherein: the external refrigerant enters the input end of the throttling device (4-8) through the refrigerant circulating pipe, the output end of the throttling device (4-8) is connected with the input end of the refrigerant separator (4-6), the output end of the refrigerant separator (4-6) is respectively communicated with the evaporator refrigerant inlet pipe (4-16) in the same group of refrigerant evaporation inlet/outlet pipe groups through a plurality of liquid separating pipes (4-15), a plurality of refrigerant output pipes (4-17) in the same group of refrigerant evaporation inlet/outlet pipe groups are communicated with the refrigerant circulating pipe (4-18) through the refrigerant collecting pipe (4-7), and the output end of the refrigerant separator is connected with the refrigerant pipe input end (4-12) of the compressor through the refrigerant circulating pipe (4-18); the number of the refrigerant inlet pipes (4-16) of the evaporator and the number of the refrigerant outlet pipes (4-17) of the evaporator of the different refrigerant evaporation inlet/outlet pipe groups are different, or the number of the refrigerant input pipes are different, so that a stepped evaporation pipeline structure with a plurality of evaporation temperatures is formed.
9. The unit air conditioner having an integrated multiple evaporating temperature evaporator of claim 8, wherein: the evaporating pipe structure (4-2) comprises three groups of refrigerant evaporating inlet/outlet pipe structures, wherein the first group of refrigerant evaporating inlet/outlet pipe structures are formed by a first row of refrigerant evaporating inlet/outlet pipes (1 a), the second group of refrigerant evaporating inlet/outlet pipe structures are formed by second to third rows of refrigerant evaporating inlet/outlet pipes (1 b-1 c), and the third group of refrigerant evaporating inlet/outlet pipe structures are formed by fourth to sixth rows of refrigerant evaporating inlet/outlet pipes (1 d-1 f); in the first group of refrigerant evaporation inlet/outlet pipe structures, the refrigerant output end of an external condenser is communicated with the input end of a throttling device (4-8) through a refrigerant pipe (4-9), the output end of the throttling device (4-8) is connected with the input end of a refrigerant separator (4-6), and a plurality of output ends of the refrigerant separator (4-6) are respectively communicated with an evaporator refrigerant inlet pipe (4-16) in a first row of refrigerant evaporation inlet/outlet pipe (1 a) through a liquid separation pipe (4-15) to form a two-return heat absorption structure; the output ends of the refrigerant inlet pipes (4-16) of the evaporator are communicated with the input ends of refrigerant output pipes (4-17), the output ends of a plurality of refrigerant output pipes (4-17) are respectively communicated with the input ends of refrigerant collecting pipes (4-7), the output ends of the refrigerant collecting pipes (4-7) are externally connected with the refrigerant pipe input ends (4-12) of the compressor through refrigerant circulating pipes (4-18), and one of the evaporators in the refrigeration cycle is formed by a first row of refrigerant evaporation inlet/outlet pipes (1 a); similarly, in the second group of refrigerant evaporation inlet/outlet pipe structures, the second to third rows of refrigerant evaporation inlet/outlet pipes (1 b-1 c) form the second evaporator in the refrigeration cycle; in the third group of refrigerant evaporation inlet/outlet pipe structures, the refrigerant evaporation inlet/outlet pipe structures form the third evaporator in the refrigeration cycle by the fourth to sixth rows of refrigerant evaporation inlet/outlet pipes (1 d-1 f).
10. The unit air conditioner having an integrated multiple evaporating temperature evaporator as recited in claim 7, wherein: the fins of the evaporator (4) are of a continuous and uninterrupted structure, so that the cleaning and the reduction of the resistance of a wind system are facilitated.
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| CN201610711743.9A CN106196376B (en) | 2016-08-23 | 2016-08-23 | Unit type air conditioner with integrated multi-evaporating temperature structure |
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| CN201610711743.9A CN106196376B (en) | 2016-08-23 | 2016-08-23 | Unit type air conditioner with integrated multi-evaporating temperature structure |
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| CN106839120A (en) * | 2017-03-17 | 2017-06-13 | 广东美的制冷设备有限公司 | Heat exchanger assembly and its installation method, indoor apparatus of air conditioner and air-conditioner |
| CN108601287B (en) * | 2018-02-11 | 2020-08-28 | 北京百度网讯科技有限公司 | Overhead refrigeration method and overhead refrigeration unit |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2211525A1 (en) * | 1991-04-23 | 1992-10-24 | Asahi Breweries Ltd. | Refrigeration system consisting of a plurality of refrigerating cycles |
| CN1888693A (en) * | 2005-06-27 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Refrigerant circulating pipeline structure capable of fully utilizing condensed water on evaporator |
| CN102445016A (en) * | 2011-11-16 | 2012-05-09 | 广州市设计院 | Method for preparing large-temperature difference chilled water in single machine two-stage compression manner and special water chilling unit |
| CN202973358U (en) * | 2012-09-12 | 2013-06-05 | 青岛海信日立空调系统有限公司 | Air conditioner used in high-temperature environment |
| CN104482689A (en) * | 2014-12-16 | 2015-04-01 | 苟仲武 | Efficient compression type heat pump system and work method of efficient compression type heat pump system |
| CN204648751U (en) * | 2014-12-16 | 2015-09-16 | 苟仲武 | A kind of Efficient Compression formula heat pump |
| CN105466063A (en) * | 2015-12-16 | 2016-04-06 | 珠海格力电器股份有限公司 | Heat pump system |
| CN206207616U (en) * | 2016-08-23 | 2017-05-31 | 广州市设计院 | Unit type air conditioner with integral type multi-evaporation temperature structure |
-
2016
- 2016-08-23 CN CN201610711743.9A patent/CN106196376B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2211525A1 (en) * | 1991-04-23 | 1992-10-24 | Asahi Breweries Ltd. | Refrigeration system consisting of a plurality of refrigerating cycles |
| CN1888693A (en) * | 2005-06-27 | 2007-01-03 | 乐金电子(天津)电器有限公司 | Refrigerant circulating pipeline structure capable of fully utilizing condensed water on evaporator |
| CN102445016A (en) * | 2011-11-16 | 2012-05-09 | 广州市设计院 | Method for preparing large-temperature difference chilled water in single machine two-stage compression manner and special water chilling unit |
| CN202973358U (en) * | 2012-09-12 | 2013-06-05 | 青岛海信日立空调系统有限公司 | Air conditioner used in high-temperature environment |
| CN104482689A (en) * | 2014-12-16 | 2015-04-01 | 苟仲武 | Efficient compression type heat pump system and work method of efficient compression type heat pump system |
| CN204648751U (en) * | 2014-12-16 | 2015-09-16 | 苟仲武 | A kind of Efficient Compression formula heat pump |
| CN105466063A (en) * | 2015-12-16 | 2016-04-06 | 珠海格力电器股份有限公司 | Heat pump system |
| CN206207616U (en) * | 2016-08-23 | 2017-05-31 | 广州市设计院 | Unit type air conditioner with integral type multi-evaporation temperature structure |
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