CN213810906U - Large-scale air conditioning unit and building facade composite module - Google Patents
Large-scale air conditioning unit and building facade composite module Download PDFInfo
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- CN213810906U CN213810906U CN202021848510.1U CN202021848510U CN213810906U CN 213810906 U CN213810906 U CN 213810906U CN 202021848510 U CN202021848510 U CN 202021848510U CN 213810906 U CN213810906 U CN 213810906U
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Abstract
The utility model discloses a large-scale air conditioning unit and outer facade composite module of building, large-scale air conditioning unit includes: a housing; the outer heat exchanger is vertically arranged in the shell and extends along a plurality of adjacent side walls of the shell, and an air inlet part and an air outlet part are arranged on the side walls of the shell opposite to the outer heat exchanger; the outer heat exchanger and the partition plate and/or the wall surface of the shell enclose to form a closed heat exchange cavity; the air suction ports of the centrifugal fans are communicated with the heat exchange chamber, and the air outlet ports of the centrifugal fans are communicated with the air outlet part on the shell; under the action of the centrifugal fan, outside air enters the shell from the air inlet parts on the multiple side surfaces, then flows through the outer heat exchanger for heat exchange, enters the heat exchange cavity, and is discharged from the shell through the centrifugal fan and the air outlet part; the water path of the inner heat exchanger is communicated with a water path at the tail end of an air conditioner in a building; at least one group of circulating modules for the circulation of refrigerant are arranged between the fluorine paths of the outer heat exchanger and the inner heat exchanger, and the water path of the inner heat exchanger exchanges heat with the fluorine paths to produce cold (hot) water required by the tail end of an air conditioner in a building.
Description
Technical Field
The utility model relates to an air conditioner technical field, concretely relates to adopt large-scale air conditioning unit of heat exchanger inner chamber multiple spot negative pressure pump drainage wind and air conditioning unit and building facade composite module outward.
Background
Although the number of high-rise buildings is rapidly increased, the traditional central air conditioner of the building marked by a screw compressor and a cooling tower is tiny; a central air conditioning module with V-shaped surface air coolers and other external heat exchangers on the top, as shown in fig. 1, has become the mainstream type of the central air conditioning market.
In the conversion process of arranging a V-shaped surface cooling type external heat exchanger central air conditioning module at the top of a traditional building central air conditioner with a screw compressor and a cooling tower as marks, the popularization of the concept of a distributed energy system plays a key role. As the distributed energy system is gradually accepted by the building design industry and users, local central air-conditioning modules are arranged in each flat layer of the building and each area of each flat layer to replace the traditional central air-conditioning of the building; the local central air-conditioning module has the important characteristics of greatly shortened heat medium conveying path, greatly reduced conveying pipe diameter, dispersed heat load, flexible unit module arrangement, simple unit management and the like, and is becoming a new alliance of building central air-conditioning;
however, the top V-shaped surface-cooled external heat exchanger central air conditioning module must be installed on the building roof or on an open air platform for ventilation and diffusion; if the air conditioner is embedded into a building and arranged on equipment platforms at each flat layer in the outer vertical surface of the building, the air outlet of an outer heat exchanger is blocked, reflected and reflowed by a ceiling, two problems of 'increase of air exhaust pressure and reduction of air volume' and 'short circuit of air flow' of the outer heat exchanger occur, so that the condensation pressure in summer is increased, the evaporation pressure in winter is reduced, and the thermal performance of a local central air conditioning module is seriously attenuated.
SUMMERY OF THE UTILITY MODEL
To the problem in the background art, the utility model provides an adopt large-scale air conditioning unit of heat exchanger inner chamber multiple spot negative pressure pump drainage, include:
a housing;
the outer heat exchanger is vertically arranged in the shell and extends along a plurality of adjacent side walls of the shell, and an air inlet part and an air outlet part are arranged on the side wall of the shell opposite to the outer heat exchanger; the outer heat exchanger, the partition plate and/or the wall surface of the shell enclose to form a closed heat exchange cavity;
the air suction ports of the centrifugal fans are communicated with the heat exchange chamber, and the air outlet ports of the centrifugal fans are communicated with the air outlet part on the shell; under the action of the centrifugal fan, outside air enters the shell from the air inlet parts on the multiple side surfaces, then flows through the outer heat exchanger for heat exchange, enters the heat exchange cavity, and is discharged from the shell through the centrifugal fan and the air outlet part;
at least one inner heat exchanger, at least one group of circulating modules for the circulation of refrigerant are arranged between the outer heat exchanger and the fluorine path of the inner heat exchanger, and the water path of the inner heat exchanger exchanges heat with the fluorine path to produce cold (hot) water required by the tail end of an air conditioner in a building.
In some embodiments, the outer heat exchanger has a "U" shape in cross section and extends along three adjacent sidewalls of the housing.
In some embodiments, the outer heat exchanger extends along a front and/or side of the housing, and the air inlet portion is disposed on the front and/or side of the housing.
In some embodiments, the air outlet is located at the bottom or the top of the front surface of the housing and has a long and narrow strip shape.
In some embodiments, the centrifugal fan is a backward tilting centrifugal fan, the casing is further provided with an exhaust cavity, one side of the exhaust cavity is provided with the air outlet portion, and a communicated channel is arranged between the heat exchange cavity and the exhaust cavity; the backward-tilting centrifugal fan is arranged in the air exhaust cavity, and an air inlet of the backward-tilting centrifugal fan is communicated with the channel.
In some embodiments, the top or bottom and/or the side of the heat exchange cavity is provided with the exhaust cavity, the exhaust cavities at the positions are provided with the backward-inclined centrifugal fans, and each backward-inclined centrifugal fan is respectively communicated with the heat exchange cavity through the channel.
In some embodiments, the centrifugal fan is a forward multi-wing fan with a volute, an air inlet of the forward multi-wing fan is located in the heat exchange cavity, and an air outlet of the forward multi-wing fan extends out of the heat exchange cavity and is communicated with the air outlet portion.
In some embodiments, a plurality of the circulation modules are arranged in parallel between the fluorine paths of the outer heat exchanger and the inner heat exchanger.
In some embodiments, the inner heat exchanger adopts a plate heat exchanger, and a water path of the plate heat exchanger is communicated with a water path at the tail end of an air conditioner in a building;
in some embodiments, the inner heat exchanger is a shell-and-tube heat exchanger, and a water path of the shell-and-tube heat exchanger is communicated with a water path at the tail end of an air conditioner in a building.
In some embodiments, the circulation module comprises a compressor, a four-way valve and a throttling device, the outer heat exchanger, the throttling device, the inner heat exchanger and the compressor are circularly connected to form a loop, the compressor is connected to the loop through the four-way valve, and the flow direction of refrigerant in the circulation module is adjusted through switching of the four-way valve.
In some embodiments, two ends of the compressor are respectively connected to a first connector and a third connector of the four-way valve, a fourth connector of the four-way valve is communicated with the outer heat exchanger, and a second connector of the four-way valve is communicated with the fluorine pipeline of the inner heat exchanger.
In some embodiments, an equipment cavity is further disposed within the housing, and the circulation module body is disposed within the equipment cavity.
The utility model also provides an air conditioning unit and building facade composite module, including the equipment platform that sets up on the building and is connected with the facade and set up the air conditioning unit on the equipment platform, the air conditioning unit adopts the large-scale air conditioning unit of adoption heat exchanger inner chamber multiple spot negative pressure pump drainage as above; the outer vertical surface of the equipment platform is provided with a ventilating shielding decoration part, and an opening is formed in the corresponding position of the air outlet part on the shielding decoration part.
In some embodiments, the blind trim portion is a louvered structure.
In some embodiments, an exhaust duct is connected to the air outlet portion, one end of the exhaust duct communicates with the air outlet portion, and the other end of the exhaust duct extends to the louver structure and communicates with an air outlet on the louver structure.
In some embodiments, a plurality of air guiding blades are arranged in parallel in the exhaust duct, and the air guiding blades are arranged in a downward inclination manner.
In some embodiments, the equipment platform is an inner recess between adjacent bay windows on the facade of the building, or an inner recess formed vertically from top to bottom on the building and connected to the facade.
The utility model discloses owing to adopt above technical scheme, make it compare with prior art, have following advantage and positive effect:
1. structure for optimizing local central air-conditioning module
The traditional local central air-conditioning module generally adopts an axial flow fan arranged above or on the side surface of an outer heat exchanger module;
according to the large-scale air conditioning unit adopting the multipoint negative pressure pumping and exhausting of the inner cavity of the heat exchanger, the spatial structure relationship of an outer fan of a traditional local central air conditioning module between an upper heat exchanger and a lower heat exchanger is fundamentally changed, the outer heat exchanger is arranged on the upper side, and the outer fan is arranged on the lower side or the rear side, so that ambient air is exhausted from the bottom after passing through the outer heat exchanger with uniform low-speed low resistance at the front side, the spatial structure of the central air conditioning module in the local area is optimized, the gravity center and the running noise of the whole air conditioning unit are reduced, and the stability is improved;
2. improving the integrity and decorativeness of facade
When the traditional local central air conditioner is arranged on a building internal equipment platform, a special air pipe is required to be installed to guide the air exhaust flow direction of a fan, the air outlet of the air pipe is over against the top or waist of a decorative facade unit such as a shutter, and the air exhaust duct of the fan and the blades of the decorative facade unit such as the shutter generate serious spatial interference, so that the unsmooth air exhaust amount is reduced, and the pressure bearing, vibration and noise of the blades of the shutter are also caused; the integrity and decorativeness of the facade is also destroyed;
the embodiment adopts a large-scale air conditioning unit with a heat exchanger inner cavity and multi-point negative pressure suction and exhaust, which is used as a building distributed energy module, a local central air conditioning outdoor unit with a strip-shaped air outlet at the bottom is matched with decorative units such as shutters and the like on the outer vertical surface of a building, the air inlet surface on the positive side surface of the central air conditioning outdoor unit is butted with a main body ventilation area on the decorative units such as the shutters and the like, and the strip-shaped air outlet at the bottom of the central air conditioning outdoor unit is butted with a low-level strip-shaped air outlet reserved on the decorative units such as the shutters and the like, so that the front-back integrated combination of the air conditioning outdoor unit and the decorative units such as the shutters and the like and the front-back integrated combination of the air conditioning outdoor unit and the low-level strip-shaped air outlet of the shutters and the like are realized, the serious spatial interference between the exhaust air duct of the traditional fan and the blades of the outer vertical surface decorative units such as the shutters and the like is eliminated, the forced vibration and the noise of the blades of the shutters are eliminated, and the installation complexity and the installation workload of the shutters are reduced, the integrity and the decoration of the outer facade of the building are improved;
3. ensure the thermal performance of the local central air-conditioning module
If the traditional local central air-conditioning module is arranged on each position equipment platform of each flat layer in the building, the air outlet of the external heat exchanger is blocked, reflected and reflows by a ceiling, even if a special air pipe is installed to guide the air exhaust flow direction of a fan, the air outlet of the air pipe is just opposite to the top or waist of a decorative external facade unit such as a shutter and the like, serious spatial interference and unsmooth air exhaust can be generated, two problems of 'increase of air exhaust pressure and reduction of air volume' and 'short circuit of air flow' of the external heat exchanger occur, so that the condensation pressure in summer is increased, the evaporation pressure in winter is reduced, the thermal performance of the local central air-conditioning module is seriously attenuated, and the local central air-conditioning module greatly deviates from laboratory test data;
in the large-scale air conditioning unit adopting the multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger, the tube-fin type outer heat exchanger is arranged on the upper portion, and the fan is arranged on the lower portion in a rear position, so that ambient air can uniformly penetrate through the decorative units such as the louver and the fins of the outer heat exchanger at low speed and low resistance from the front surface of the heat exchanger; moreover, a plurality of centrifugal fans are adopted to replace the traditional axial flow fan, so that the wind pressure and the wind quantity are improved, and the speed of the air outlet of a strip-shaped air outlet at the bottom of the unit and the incident ambient atmosphere, the range and the diffusion dilution effect are improved; the embodiment fundamentally solves the two problems of air outlet pressure rising air volume reduction and air outlet short circuit of the traditional local central air conditioner, and ensures the consistency of thermal performance data of the air conditioning unit and laboratory tests.
Drawings
The above and other features and advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of a prior art air conditioning unit;
fig. 2 is a top view of a large-scale air conditioning unit provided in embodiment 1 and using a heat exchanger inner cavity to perform multi-point negative pressure pumping and exhausting;
FIG. 3 is a side view of a large air conditioning unit with multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger provided in embodiment 1;
FIG. 4 is a schematic diagram of a refrigeration fluorine circuit in example 1;
FIG. 5 is a schematic view of a fluorine generating circuit in example 1;
FIG. 6 is a side view of a large air conditioning unit with multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger provided in embodiment 2;
FIG. 7 is a top view of a variation of the large air conditioning unit provided in example 3 with multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger;
FIG. 8 is a side view of a variation of the large air conditioning unit provided in example 3 with multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger;
FIG. 9 is a top view of a variation of the large air conditioning unit provided in example 4 with multi-point negative pressure pumping and exhausting of the inner chamber of the heat exchanger;
FIG. 10 is a top view of a variation of the large air conditioning unit provided in example 5 with multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger;
FIG. 11 is a side view of a variation of the large air conditioning unit provided in example 5 with multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger;
FIG. 12 is a schematic view showing the structure of a building according to example 6;
FIG. 13 is a longitudinal sectional view of the building structure in example 6;
fig. 14 is a schematic structural view of a building facade module provided in example 6;
fig. 15 is a schematic structural view of a building according to example 7.
Detailed Description
The invention will be described in more detail hereinafter with reference to the accompanying drawings showing embodiments of the invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity.
The utility model provides a large-scale air conditioning unit which adopts the heat exchanger inner cavity to pump and exhaust air under the multi-point negative pressure, comprising a shell, an outer heat exchanger, at least two centrifugal fans and at least one inner heat exchanger; the outer heat exchanger is vertically arranged in the shell and extends along a plurality of adjacent side walls of the shell, and air inlet parts are arranged on the side walls of the shell opposite to the outer heat exchanger; the outer heat exchanger and the partition plate and/or the inner wall surface of the shell enclose to form a closed heat exchange cavity; an air suction port of the centrifugal fan is communicated with the heat exchange chamber, and an air outlet is communicated with an air outlet part on the shell; under the action of the centrifugal fan, outside air enters the shell from the air inlet parts on the multiple side surfaces, then flows through the outer heat exchanger for heat exchange, enters the heat exchange cavity, and is discharged from the shell through the centrifugal fan and the air outlet part; at least one group of circulating modules for the circulation of refrigerant are arranged between the pipeline in the outer heat exchanger and the fluorine path of the inner heat exchanger, and the water path of the inner heat exchanger exchanges heat with the fluorine path to produce cold (hot) water required by the tail end of an air conditioner in a building.
The hot water or cold water obtained by heat exchange in the water channel of the plate heat exchanger can be conveyed to a fan coil in a building room to realize refrigeration and heating in the building, and can also be used for producing domestic water and the like, and the specific application scene is adjusted according to specific needs, so that the shortage of the hot water or cold water is limited.
The utility model provides an adopt large-scale air conditioning unit of heat exchanger inner chamber multiple spot negative pressure pump drainage wind, many centrifugal fan start, the air of pump drainage heat transfer intracavity is in order to produce inner chamber multiple spot negative pressure state, produce pressure differential inside and outside the outer heat exchanger of tube fin formula, pulling ambient air low-speed, even, low resistance flows through the outer heat exchanger of tube fin formula, flow in a plurality of centrifugal fan negative pressure inlet scoop after accomplishing the heat exchange, after centrifugal fan promotes the pressure head, it jets into ambient atmosphere diffusion dilution at a high speed to flow through outer heat exchanger module bottom bar air outlet again.
The utility model makes the ambient air pass through the decoration units such as the building outer vertical face shutter and the outer heat exchanger fin uniformly, at low speed and with low resistance; moreover, a plurality of centrifugal fans are adopted to replace the traditional axial flow fan, so that the wind pressure and the wind quantity are improved, and the speed of the air outlet of a strip-shaped air outlet at the bottom of the unit and the incident ambient atmosphere, the range and the diffusion dilution effect are improved; the utility model discloses solved fundamentally that traditional local central air conditioning air-out wind pressure risees the amount of wind and reduces and two big problems of air-out short circuit, guaranteed the uniformity of thermal technology performance data and laboratory test of air conditioning unit.
Specific examples are further described below.
Example 1
Referring to fig. 2-5, the present embodiment provides a large air conditioning unit using multi-point negative pressure pumping and exhausting in an inner cavity of a heat exchanger, which includes a casing 1, and an outer heat exchanger 2 is disposed in the casing 1.
In the present embodiment, as shown in fig. 2, the outer heat exchanger 2 is U-shaped and extends along the front surface and two side surfaces of the casing 1, and the side surfaces of the casing 1 opposite to the three surfaces of the outer heat exchanger 2 are provided with air inlet portions 103, so that the external air can uniformly pass through the outer heat exchanger 2.
The outer heat exchanger 2 is a finned heat exchanger, which may be an integral structure, or may be a plurality of outer heat exchanger modules, and is not limited herein and may be adjusted according to specific situations.
In other embodiments, the outer heat exchanger 2 may also be in an L-shape or the like, or may extend only along the front surface and one of the side surfaces of the casing, which is not limited herein and may be adjusted according to specific situations.
In this embodiment, the top of the "U" shaped outer heat exchanger is combined with the inner wall surface of the top of the casing, and the left side and the bottom of the "U" shaped outer heat exchanger are provided with partitions, thereby forming a closed heat exchange chamber 101.
In this embodiment, an exhaust cavity 102 is disposed below the heat exchanger cavity 101, two centrifugal fans 3 are disposed in the exhaust cavity 102 side by side, a backward inclined centrifugal fan is used as a specific centrifugal fan, a channel for communicating the heat exchange cavity 101 with the exhaust cavity 102 is disposed therebetween, and an air inlet of the backward inclined centrifugal fan is communicated with the channel to achieve air suction from the heat exchange cavity 101. Further, the exhaust cavity 102 is further communicated with an air outlet portion 104 arranged on the housing, and the air outlet portion is arranged at the bottom of the front surface of the housing 1 and is in a long and narrow strip shape in this embodiment, so that small-area high-speed air outlet is realized.
In other embodiments, the exhaust cavity 102 may be disposed at the top or the left side of the heat exchange cavity, the centrifugal fans may be of other types, the number of the centrifugal fans may be two or more, and the number of the centrifugal fans is not limited herein and may be adjusted according to specific needs.
In this embodiment, an inner heat exchanger 4 is further disposed in the casing 1, and two sets of circulation modules, namely a circulation module 5 and a circulation module 6, are disposed between the pipeline in the outer heat exchanger 1 and the fluorine path of the inner heat exchanger 4.
Specifically, the pipeline in the outer heat exchanger 2 is divided into two pipeline modules, the two pipeline modules are independent from each other but share one set of fin assembly, the fluorine path in the inner heat exchanger 4 is also divided into two fluorine path modules, and the two fluorine path modules are independent from each other; the circulation module 5 is circularly connected with one of the pipeline modules and one of the fluorine path modules to form a channel for circulating a common refrigerant, and the circulation module 6 is circularly connected with the other pipeline module and one of the fluorine path modules to form a channel for circulating a common refrigerant. In other embodiments, the number of the circulation modules may be selected according to specific requirements, and the number of the partitions of the pipeline module and the fluorine path module is determined according to the number of the circulation modules, which is not limited herein.
In the present embodiment, the structures of the circulation module 5 and the circulation module 6 are the same, and the circulation module 5 is taken as an example for further description.
Specifically, referring to fig. 4 to 5, the circulation module 5 includes a compressor 501, a four-way valve 502, and a throttling device 503, wherein one of the pipeline modules of the outer heat exchanger 2, the throttling device 501, one of the fluorine path modules of the plate heat exchanger 4, and the compressor 501 are connected in a circulating manner to form a loop, and the compressor 501 is connected to the loop through the four-way valve 502, and the flow direction of the refrigerant in the circulation module is adjusted by switching the four-way valve 502.
Further, two ends of the compressor 501 are respectively connected to a first port a and a third port c of the four-way valve 502, a fourth port d of the four-way valve 502 is communicated with the outer heat exchanger 2, and a second port b of the four-way valve 502 is communicated with a fluorine path pipeline of the plate heat exchanger 4.
Further, as shown in fig. 4, when the first port a of the four-way valve 502 is communicated with the fourth port d, and the second port b is communicated with the third port c, the circulation module 5 operates the refrigeration fluorine path, so that the water path of the plate heat exchanger 4 is cooled; as shown in fig. 5, when the port a of the four-way valve 502 is communicated with the port b, and the port c is communicated with the port d, the circulation module 5 operates to heat the fluorine circuit, so that the water circuit of the plate heat exchanger 4 is heated.
In this embodiment, the waterway part of the inner heat exchanger 4 is communicated with the water circulation system through the inlet and outlet water valves 8, and the operation thereof is promoted by the water pump 7.
In the embodiment, the inner heat exchanger 6 adopts a plate heat exchanger, and a water path of the plate heat exchanger is communicated with a water path at the tail end of an air conditioner in a building; of course, in other embodiments, the inner heat exchanger 4 may also be a shell-and-tube heat exchanger, and a water path of the shell-and-tube heat exchanger is communicated with a water path at the end of an air conditioner in a building; the structural form of the inner heat exchanger 4 can be adjusted according to specific situations, and is not limited here.
In this embodiment, an equipment chamber is further disposed in the housing 1, and each circulation module is disposed in the equipment chamber. The equipment chamber in the preferred embodiment is arranged in the housing 1 behind the heat exchange chamber 101.
The large-scale air conditioning unit adopting the heat exchanger inner cavity multipoint negative pressure pumping and exhausting has the advantages that:
1. structure for optimizing local central air-conditioning module
The traditional local central air-conditioning module generally adopts an axial flow fan arranged above or on the side surface of an outer heat exchanger module;
according to the large-scale air conditioning unit adopting the multipoint negative pressure pumping and exhausting of the inner cavity of the heat exchanger, the spatial structure relationship of an outer fan of a traditional local central air conditioning module between an upper heat exchanger and a lower heat exchanger is fundamentally changed, the outer heat exchanger is arranged on the upper side, the outer fan is arranged on the lower side, and ambient air is exhausted from the bottom after passing through the outer heat exchanger with uniform low-speed low resistance at the front side, so that the spatial structure of the central air conditioning module in the local area is optimized, the gravity center and the running noise of the whole air conditioning unit are reduced, and the stability is improved;
2. improving the integrity and decorativeness of facade
When the traditional local central air conditioner is arranged on a building internal equipment platform, a special air pipe is required to be installed to guide the air exhaust flow direction of a fan, the air outlet of the air pipe is over against the top or waist of a decorative facade unit such as a shutter, and the air exhaust channel of the fan and the blades of the decorative facade unit such as the shutter generate serious spatial interference, so that the air exhaust is not smooth, and the blades of the shutter are subjected to pressure bearing, vibration and noise; the integrity and decorativeness of the facade is also destroyed;
the embodiment of the invention relates to a large-scale air conditioning unit adopting multipoint negative pressure pumping and exhausting of an inner cavity of a heat exchanger, which is used as a building distributed energy module, a local central air conditioning outdoor unit with a strip-shaped air outlet at the bottom is arranged in a matching way with decorative units such as shutters and the like on the outer vertical surface of a building, the front air inlet surface of the central air conditioning outdoor unit is butted with a main body ventilation area on the decorative units such as the shutters and the like, the strip-shaped air outlet at the bottom of the central air conditioning outdoor unit is butted with a low-level strip-shaped air outlet reserved on the decorative units such as the shutters and the like, the front and back integrated combination of the air conditioning outdoor unit and the decorative units such as the shutters and the like is realized, the front and back integrated combination of the air conditioning outdoor unit and the low-level strip-shaped air outlet of the shutters and the like is realized, the serious spatial interference between an exhaust air duct of a traditional fan and the blades of the outer vertical surface decorative units such as the shutters and the like is eliminated, the forced vibration and the noise of the blades of the shutters are eliminated, and the installation complexity and the workload of the shutters are reduced, the integrity and the decoration of the outer facade of the building are improved;
3. ensure the thermal performance of the local central air-conditioning module
If the traditional local central air-conditioning module is arranged on each position equipment platform of each flat layer in the building, the air outlet of the external heat exchanger is blocked, reflected and reflows by a ceiling, even if a special air pipe is installed to guide the air exhaust flow direction of a fan, the air outlet of the air pipe is just opposite to the top or waist of a decorative external facade unit such as a shutter and the like, serious spatial interference and unsmooth air exhaust can be generated, two problems of 'increase of air exhaust pressure and reduction of air volume' and 'short circuit of air flow' of the external heat exchanger occur, so that the condensation pressure in summer is increased, the evaporation pressure in winter is reduced, the thermal performance of the local central air-conditioning module is seriously attenuated, and the local central air-conditioning module greatly deviates from laboratory test data;
in the large-scale air conditioning unit adopting the multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger, the tube fin type outer heat exchanger is arranged on the upper portion, and the fan is arranged on the lower portion, so that ambient air can uniformly penetrate through the decorative units such as the louver and the fins of the outer heat exchanger at low speed and low resistance from the front surface of the heat exchanger; moreover, a plurality of centrifugal fans are adopted to replace the traditional axial flow fan, so that the wind pressure and the wind quantity are improved, and the speed of the air outlet of a strip-shaped air outlet at the bottom of the unit and the incident ambient atmosphere, the range and the diffusion dilution effect are improved; the embodiment fundamentally solves the two problems of air outlet pressure rising air volume reduction and air outlet short circuit of the traditional local central air conditioner, and ensures the consistency of thermal performance data of the air conditioning unit and laboratory tests.
Example 2
Referring to fig. 6, this embodiment is adjusted based on embodiment 1.
Specifically, in the present embodiment, the air outlet cavity 102 is disposed at the top of the heat exchange cavity 101, and the corresponding air outlet portion 104 is also disposed at the top of the front surface of the housing and has a long and narrow strip shape. A plurality of centrifugal fans 3 are provided directly on top of the casing 1. The embodiment is suitable for the building with the air exhaust interface arranged at the middle upper part of the equipment platform.
In this embodiment, all the other structures of the large air conditioning unit adopting the multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger can refer to the description in embodiment 1, and the description is not limited herein.
Example 3
Referring to fig. 7-8, this embodiment is adjusted based on embodiment 1.
Specifically, in this embodiment, the rear and the bottom of the heat exchange cavity 101 are provided with the exhaust cavity 102 for communicating, and the exhaust cavity at the rear of the heat exchange cavity 101 is provided with a backward inclined centrifugal fan arranged in an axial horizontal direction, the exhaust cavity at the bottom of the heat exchange cavity 101 is provided with a backward inclined centrifugal fan arranged in an axial vertical direction, and the air suction ports of the two backward inclined centrifugal fans are communicated with the heat exchange cavity 101 for air suction.
In the embodiment, one of the two centrifugal fans is arranged on the rear side wall surface of the heat exchange cavity, and the other centrifugal fan is arranged at the bottom, but not on the bottom in embodiment 1.
In this embodiment, all the other structures of the large air conditioning unit adopting the multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger can refer to the description in embodiment 1, and the description is not limited herein.
Example 4
Referring to fig. 9, this embodiment is adjusted based on embodiment 3.
Specifically, in this embodiment, two independent plate heat exchangers are disposed in the casing 1, and two sets of circulation modules are respectively communicated between each set of plate heat exchanger 4 and the outer heat exchanger 2; specifically, two independent circulation modules 5 and 6 are connected between the plate heat exchanger 401 and the outer heat exchanger 2, and two independent circulation modules 9 and 10 are connected between the plate heat exchanger 402 and the outer heat exchanger 2.
In this embodiment, four centrifugal fans 3 are provided in the air exhaust cavity 102, specifically, the air exhaust cavity at the rear of the heat exchange cavity 101 is provided with two backward inclined centrifugal fans horizontally arranged in parallel, the air exhaust cavity at the bottom of the heat exchange cavity 101 is provided with two backward inclined centrifugal fans vertically arranged in parallel, and air suction ports of the four backward inclined centrifugal fans are communicated with the heat exchange cavity 101 to suck air.
The number of plate heat exchangers and the number of centrifugal fans are increased, and the larger outer heat exchanger 2 is selected correspondingly and is suitable for large air conditioning units.
In this embodiment, all the other structures of the large air conditioning unit adopting the multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger can refer to the description in embodiment 3, and the description is not limited herein.
Example 5
Referring to fig. 10-11, this embodiment is adjusted based on embodiment 4.
Specifically, in this embodiment, the centrifugal fan 3 is a forward multi-blade fan; in this embodiment, the arrangement of the air exhaust cavity is omitted, the air inlets of the forward multi-wing fans are located in the heat exchange cavity 101, and the air outlets extend out of the heat exchange cavity 101 and are communicated with the air outlet part 104.
Further, in the present embodiment, three forward multi-wing fans are provided, wherein two forward multi-wing fans are located in the heat exchange cavity 101 at the rear position side by side, and the other forward multi-wing fan is located in the heat exchange cavity 101 at the lower position, as shown in fig. 10; the air outlets of the three forward multi-wing fans are communicated with a long and narrow air outlet part 104 at the bottom of the front surface of the shell 1 along the extending heat exchange cavity 101.
In this embodiment, all the other structures of the large air conditioning unit adopting the multi-point negative pressure pumping and exhausting of the inner cavity of the heat exchanger can refer to the description in embodiment 4, and the description is not limited herein.
Example 6
Referring to fig. 10 to 14, the present invention further provides an outdoor unit of an air conditioner and a building facade combination module, comprising an equipment platform 12 arranged on a building and connected to a facade and an air conditioning unit arranged on the equipment platform 12, wherein the air conditioning unit adopts any one of the large air conditioning units of embodiments 1 to 5 which adopts a heat exchanger inner cavity to pump and exhaust air at multiple points under negative pressure; the outer facade opening of the equipment platform is provided with a shielding decoration part 11 which can be ventilated, and the corresponding part of the shielding decoration part 11 and the air outlet part is provided with an opening.
In this embodiment, as shown in fig. 10, the equipment platform 12 is located in an interior recess between bay window structures on adjacent floors of the building; the shielding decoration part is of a shutter structure. Of course, in other embodiments, the specific position of the device platform and the implementation scheme of the shielding decoration part can be adjusted according to specific situations, and are not limited herein.
In this embodiment, an exhaust duct 13 is connected to the air outlet portion 104 of the air conditioner external unit 01, one end of the exhaust duct 13 is communicated with the air outlet portion 104, and the other end of the exhaust duct 13 extends to the louver structure and is communicated with an air outlet on the louver structure.
Furthermore, be provided with a plurality of mutual parallel arrangement's wind blade in the exhaust pipe 11, wind blade is the downward sloping setting for the air-out that enters into in the exhaust pipe 13 is discharge downwards along wind blade, and lower angle slope discharges right, so that make high-speed exhaust air keep away from the air inlet portion.
Of course, in other embodiments, the air guide vane may not be provided, for example, the angle of the vane on the louver corresponding to the outlet of the exhaust duct 11 may be adjusted to make the outlet air downward at 45 °, which is not limited herein and may be adjusted according to specific needs.
The utility model provides an outer quick-witted and outer facade composite module of building, as the energy module of building, will be equipped with the decorative unit such as the shutter of the outer facade of bar air outlet and the outer facade of building and pair the setting, the air conditioning unit air inlet face docks with the main part ventilation zone on the decorative unit such as shutter, the bar air outlet butt joint that reserves on the decorative unit such as air conditioning unit bar air outlet and shutter, realizes the outer machine of air conditioner and the front and back integrated combination of decorative unit such as shutter around the decorative unit, the outer machine of air conditioner air outlet and the bar air outlet of decorative unit such as shutter around the integrated combination;
when the air conditioner runs, a centrifugal fan in the air conditioner set is started, a negative pressure area is generated in the heat exchange cavity, ambient air is pulled to pass through gaps of outer vertical surface decoration units such as shutters on the front surface, then passes through gaps of outer heat exchanger fins uniformly at a low speed and at a low resistance, is sucked by the centrifugal fan after heat exchange is completed, enters strip-shaped air outlets of the decoration units such as the shutters from strip-shaped air outlets after being boosted by the centrifugal fan, and finally enters the ambient air at a high speed.
Example 7
Referring to fig. 15, this example is an adjustment based on example 9.
In the present embodiment, the equipment platform 12 is an inner recess formed vertically from top to bottom in the building and connected to the facade.
In this embodiment, the rest of the structure of the outdoor unit of an air conditioner and the building facade module can refer to the description in embodiment 6, and is not limited herein.
It will be appreciated by those skilled in the art that the invention can be embodied in many other specific forms without departing from the spirit or scope thereof. Although embodiments of the present invention have been described, it is to be understood that the present invention should not be limited to those precise embodiments, and that various changes and modifications can be effected therein by one skilled in the art without departing from the scope or spirit of the invention as defined by the appended claims.
Claims (18)
1. A large-scale air conditioning unit, characterized by comprising:
a housing;
the outer heat exchanger is vertically arranged in the shell and extends along a plurality of adjacent side walls of the shell, and an air inlet part and an air outlet part are arranged on the side wall of the shell opposite to the outer heat exchanger; the outer heat exchanger, the partition plate and/or the wall surface of the shell enclose to form a closed heat exchange cavity;
the air suction ports of the centrifugal fans are communicated with the heat exchange chamber, and the air outlet ports of the centrifugal fans are communicated with the air outlet part on the shell; under the action of the centrifugal fan, outside air enters the shell from the air inlet parts on the multiple side surfaces, then flows through the outer heat exchanger for heat exchange, enters the heat exchange cavity, and is discharged from the shell through the centrifugal fan and the air outlet part;
at least one inner heat exchanger, at least one group of circulating modules for the circulation of refrigerant are arranged between the outer heat exchanger and the fluorine path of the inner heat exchanger, and the water path of the inner heat exchanger exchanges heat with the fluorine path to produce cold and hot water required by the tail end of an air conditioner in a building.
2. The large air conditioning unit according to claim 1, wherein the cross section of the outer heat exchanger is "U" shaped and extends along three adjacent side walls of the housing.
3. The large air conditioning unit according to claim 1 or 2, wherein the outer heat exchanger extends along a front and/or side of the housing, and the air inlet portion is disposed on the front and/or side of the housing.
4. The large air conditioning unit according to claim 1 or 2, wherein the air outlet is located at the bottom or the top of the front surface of the housing and is in the shape of a long and narrow strip.
5. The large-scale air conditioning unit according to claim 1 or 2, wherein the centrifugal fan is a backward inclined centrifugal fan, an exhaust cavity is further arranged in the housing, the air outlet part is arranged on one side of the exhaust cavity, and a communicating channel is arranged between the heat exchange cavity and the exhaust cavity; the backward-tilting centrifugal fan is arranged in the air exhaust cavity, and an air inlet of the backward-tilting centrifugal fan is communicated with the channel.
6. The large-scale air conditioning unit according to claim 5, wherein the top or bottom and/or the side of the heat exchange cavity is provided with the exhaust cavity, the exhaust cavities at each position are provided with the back-tilting centrifugal fans, and each back-tilting centrifugal fan is respectively communicated with the heat exchange cavity through the channel.
7. The large-scale air conditioning unit according to claim 1 or 2, wherein the centrifugal fan is a forward multi-wing fan with a volute, an air inlet of the forward multi-wing fan is located in the heat exchange cavity, and an air outlet of the forward multi-wing fan extends out of the heat exchange cavity and is communicated with the air outlet portion.
8. The large air conditioning unit according to claim 1, wherein a plurality of the circulation modules are arranged in parallel between the fluorine paths of the outer heat exchanger and the inner heat exchanger.
9. The large-scale air conditioning unit according to claim 1, characterized in that the inner heat exchanger adopts a plate heat exchanger, and a plate heat exchanger water channel is communicated with an air conditioning terminal water channel in a building.
10. The large-scale air conditioning unit according to claim 1, characterized in that the inner heat exchanger is a shell-and-tube heat exchanger, and a shell-and-tube heat exchanger water path is communicated with an air conditioning end water path in a building.
11. The large air conditioning unit according to claim 1 or 8, wherein the circulation module comprises a compressor, a four-way valve and a throttling device, the outer heat exchanger, the throttling device, the inner heat exchanger and the compressor are circularly connected to form a loop, the compressor is connected to the loop through the four-way valve, and the flow direction of the refrigerant in the circulation module is adjusted through switching of the four-way valve.
12. The large air conditioning unit according to claim 11, wherein two ends of the compressor are connected to a first port and a third port of the four-way valve respectively, a fourth port of the four-way valve is communicated with the outer heat exchanger, and a second port of the four-way valve is communicated with the fluorine pipeline of the inner heat exchanger.
13. The large air conditioning unit according to claim 1, wherein an equipment cavity is further provided in the housing, and the circulation module body is disposed in the equipment cavity.
14. An air conditioning unit and building facade combined module is characterized by comprising an equipment platform which is arranged on a building and connected with a facade and an air conditioning unit which is arranged on the equipment platform, wherein the air conditioning unit adopts a large air conditioning unit according to any one of claims 1 to 13; the outer vertical surface of the equipment platform is provided with a ventilating shielding decoration part, and an opening is formed in the corresponding position of the air outlet part on the shielding decoration part.
15. An air conditioning unit and building facade module in accordance with claim 14, wherein the shield decoration part is a louver structure.
16. The combined module as claimed in claim 15, wherein the air outlet portion is connected with an exhaust duct, one end of the exhaust duct is communicated with the air outlet portion, and the other end of the exhaust duct extends to the louver structure and is communicated with an exhaust outlet on the louver structure.
17. An air conditioning unit and building facade module as claimed in claim 16, wherein a plurality of parallel air guide vanes are provided in the exhaust duct, and the air guide vanes are inclined downwards.
18. An air conditioning unit and building facade module as claimed in claim 14 or 15, wherein the equipment platform is an inner recess between adjacent bay windows on the building facade or an inner recess formed vertically from top to bottom on the building and connected to the building facade.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848510.1U CN213810906U (en) | 2020-08-28 | 2020-08-28 | Large-scale air conditioning unit and building facade composite module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021848510.1U CN213810906U (en) | 2020-08-28 | 2020-08-28 | Large-scale air conditioning unit and building facade composite module |
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| CN213810906U true CN213810906U (en) | 2021-07-27 |
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| CN202021848510.1U Active CN213810906U (en) | 2020-08-28 | 2020-08-28 | Large-scale air conditioning unit and building facade composite module |
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Effective date of registration: 20230317 Address after: Room R21-A124, Room 403, No. 1, Mingzhu 1st Street, Hengli Town, Nansha District, Guangzhou City, Guangdong Province, 511466 Patentee after: Guangzhou Wan'ermei Engineering Technology Co.,Ltd. Address before: Room 203, building 1, No. 23 and 33, Lane 466, Yindu Road, Minhang District, Shanghai Patentee before: SHANGHAI BOHAN THERMAL ENERGY TECHNOLOGY Co.,Ltd. |