CN220552024U - Main unit fusion body of fan rear-mounted double-air-duct double-refrigerating system and equipment platform thereof - Google Patents

Abstract

The utility model belongs to the technical field of new energy sources, and discloses a host fusion body of a fan rear-mounted double-air-duct double-refrigerating system and a device platform thereof. The host fusion body comprises a shell, 2 groups of refrigerant circulation systems and an exhaust cavity; the refrigerant circulation system includes an external heat exchanger and a compressor; each group of refrigerant circulation systems is provided with an independent negative pressure cavity of the external heat exchanger, and the negative pressure cavity of the external heat exchanger comprises the external heat exchanger, a part of shell and a back plate; the back plate is provided with a plurality of air outlets of the negative pressure cavities of the external heat exchangers, the air outlets are provided with fans, the air outlets are communicated with the air exhaust cavities, and the air outlets of the air exhaust cavities are arranged on the same side of the air inlets of the shell; the outer heat exchanger is an air inlet of a negative pressure cavity of the outer heat exchanger. The utility model innovates the high-efficiency heat exchange air path structure of the air conditioner main unit external heat exchanger assembly, and improves the energy density of the main body; constructing a high-efficiency air path system penetrating through the outer vertical surface of the equipment platform; the power density of the equipment platform is improved, and the occupied area of the equipment platform is reduced.

Description

Main unit fusion body of fan rear-mounted double-air-duct double-refrigerating system and equipment platform thereof

Technical Field

The utility model belongs to the technical field of new energy, and particularly relates to a host fusion body of a fan rear-mounted double-air-duct double-refrigerating system and a device platform thereof.

Background

The heat of the air energy water heater is derived from air, the heat of the condenser of the air energy water heater is released, and the main body is the heat extracted from the air by the evaporator; the evaporator of the main machine of the water heater cannot effectively ventilate the ambient atmosphere, so that the air outlet of the evaporator is circularly short-circuited in the small space of the equipment platform, the temperature of the small space of the equipment platform is continuously reduced, and the evaporation pressure of the evaporator is further reduced, and the heating quantity is seriously attenuated; this phenomenon is more serious in low temperature seasons, and the heat pump main unit of the water heater is degenerated into an electric heating tube.

As shown in fig. 1, the pursuit of building designers, owners and society on the visual effect of the outer facade of the building causes the air conditioning host on the equipment platform to be hidden by the outer facade louver, and the classical air conditioning host entering from the back of the wind path and exiting from the front of the wind path is blocked to seriously attenuate the air exhaust and heat exchange performance of the atmosphere outside the building; the medium-speed exhaust (below 7 m/s) air conditioner host computer is hindered to the exhaust of the atmosphere environment outside the equipment platform, the static pressure of exhaust is increased, the exhaust speed is reduced, the air quantity is reduced, and a considerable part of air flow in the reduced exhaust air quantity is blocked by the shutter and returns to the equipment platform and is again inhaled by the external heat exchanger to cause air flow short circuit, so that the diffusion dilution effect of the exhaust penetrating through the shutter of the external elevation into the atmosphere environment is severely inhibited. The condensation pressure of the external heat exchanger is too high, the condensate is not enough in supercooling during the cooling operation in summer, the evaporation pressure of the external heat exchanger is too low, the circulation quantity of the refrigerant is greatly attenuated during the heating operation in winter, the task of the air conditioner serving as a heat carrier cannot be finished at full cost, and the performance of the air conditioner on an equipment platform is greatly reduced compared with laboratory data.

The two-carbon era comes, the popularization of the air energy water heater is greatly accelerated, and a household central air conditioner host and the air energy water heater become standard configurations on a fine room equipment platform in the eye; in summary, the classic household central air conditioner host and the air energy water heater in the early stage of the double carbon age have the following problems:

(1) performance attenuation of air energy water heater of air conditioning host on equipment platform

The air conditioning host and the air energy water heater host behind the outer facade shutter of the equipment platform are blocked from exhausting air to the atmosphere outside the building, the diffusion dilution effect of the air exhausted penetrating the outer facade shutter and entering the atmosphere is severely inhibited, so that the condensation pressure of the outer heat exchanger is too high, the condensate undercooling is insufficient when the air conditioning host is in refrigerating operation in summer, the evaporation pressure of the outer heat exchanger is too low, the circulation volume of the refrigerant is greatly attenuated when the air conditioning host is in heating operation in winter, the task of the air energy water heater of the air conditioner serving as a heat carrier cannot be completed at full scale, and the thermal performance of the air energy water heater of the air conditioning host on the equipment platform is greatly reduced compared with the laboratory data.

(2) Device resource reconfiguration

The air conditioner host and the air energy water heater host are vapor compression refrigeration equipment, the working principle is the same, the electromechanical structure is quite similar, and the air conditioner host and the air energy water heater host are a fluorine path system driven by a compressor, a condenser, a throttle valve and an evaporator, a fan and a water pump driven high-temperature heat source medium system and a low-temperature heat source medium system.

In a narrow equipment platform space, two sets of air conditioner host equipment and heat pump hot water equipment which are mutually independent and have the same principle and similar structure are configured in this way, so that the air conditioner host equipment and the heat pump hot water equipment are repeated configuration of refrigeration equipment resources and waste of the refrigeration equipment resources.

(3) Device platform inefficiency and inefficiency area increase

In the two-carbon era, a household central air-conditioning host machine and an air energy water heater (comprising a host machine and a water tank) have become standard configurations on a residential equipment platform;

as the air conditioning host, the air energy water heater and other devices on the residential device platform are required to be distributed as independent units, an air inlet channel is reserved for the outer heat exchanger arranged on the rear side of the air conditioning host adopting the back-in front-out side air outlet channel structure, and an air inlet channel and an air outlet channel are reserved for the air energy water heater host evaporator, the distance among the central air conditioning host, the air energy water heater host, the water tank and other devices on the device platform is increased, and the ineffective low-efficiency area is increased.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a host fusion body of a fan rear-mounted double-air-duct double-refrigerating system;

the utility model further aims to provide an equipment platform for assembling the host fusion body of the fan rear-mounted double-air-duct double-refrigerating system.

In order to solve the technical problems, the technical scheme of the utility model is as follows:

a main engine fusion of a fan rear-mounted double-air-duct double-refrigerating system comprises a shell, 2 groups of refrigerating agent circulating systems arranged in the shell and an exhaust cavity; the refrigerant cycle system includes an external heat exchanger and a compressor;

each group of refrigerant circulation systems is provided with an independent outer heat exchanger negative pressure cavity, and the outer heat exchanger negative pressure cavity comprises an outer heat exchanger, a part of shell and a back plate;

the back plate is provided with a plurality of air outlets of the negative pressure cavities of the external heat exchangers, the air outlets are provided with fans, the air outlets are communicated with the air exhaust cavities, and the air outlets of the air exhaust cavities are arranged on the same side of the air inlet of the shell; the outer heat exchanger is an air inlet of a negative pressure cavity of the outer heat exchanger.

Further, the air outlet of the air exhaust cavity faces to the short side of the shell.

Further, the outer heat exchanger is a horizontal section V-shaped finned tube heat exchanger assembly or a zigzag fold line type finned tube heat exchanger assembly; the horizontal section V-shaped finned tube heat exchanger assembly comprises at least 2 flat plate type finned tube heat exchangers; or the V-shaped finned tube heat exchanger is formed by bending a flat plate type finned tube heat exchanger; or consists of a flat plate type finned tube heat exchanger and a V-shaped finned tube heat exchanger formed by bending the flat plate type finned tube heat exchanger; the cross section of the horizontal section V-shaped finned tube heat exchanger assembly perpendicular to the long sides of the fins is a folded line type.

The long sides of the fins of the flat plate type finned tube heat exchanger are arranged in the vertical direction or close to the vertical direction in the horizontal air duct.

Further, the cross section of the horizontal section V-shaped finned tube heat exchanger assembly vertical to the long sides of the fins is V-shaped or N-shaped, or the horizontal section V-shaped finned tube heat exchanger assembly is formed by continuously arranging at least 2 fin tube heat exchangers with the cross sections vertical to the long sides of the fins.

Preferably, the cross section of the horizontal cross section V-shaped finned tube heat exchanger assembly, which is perpendicular to the long sides of the fins, is W-shaped; preferably, the apex angle alpha of the V-shaped fin tube heat exchanger is 15-110 degrees.

Preferably, the apex angle alpha of the V-shaped fin tube heat exchanger is 30-90 degrees.

Preferably, the apex angle alpha of the V-shaped fin tube heat exchanger is 30-60 degrees.

Further, one side of the section of the horizontal section V-shaped finned tube heat exchanger assembly vertical to the long sides of the fins is a heat exchanger air inlet surface, and the other side is a heat exchanger air outlet surface; the air outlet surface belongs to the negative pressure cavity area of the external heat exchanger.

Further, the incident surface of the air inlet flow is each flat plate type finned tube heat exchanger, and the intersection angle of the air inlet flow and the tip of each fin plate on each flat plate type finned tube heat exchanger is an obtuse angle; the obtuse angle beta is 97.5-145 degrees; the air inlet flow hits the tip of each fin plate at an obtuse angle beta, and is reflected by the fin tip plate to enter the fin gap to flow to the negative pressure cavity of the external heat exchanger.

Further, the flow rate of the air flow entering each fin gap d is equal to the air inlet flow intercepted by the vertical distance delta between the tips of the front fin plate and the rear fin plate of the flat plate type finned tube heat exchanger on the air inlet section;

delta = d.sin alpha/2, where alpha is the apex angle of the V-type finned tube heat exchanger;

the vertical distance delta value of the tips of the front fin plate and the rear fin plate of the flat plate type fin tube heat exchanger on the air inlet section is 0.13 d-0.7 d.

Preferably, the air flow speed of the fin gap is 1/3 of the air inlet speed, and the incidence obtuse angle beta corresponding to the vertex angle alpha of the V-shaped fin tube heat exchanger is 39 degrees and 109.5 degrees.

Further, the zigzag broken line type finned tube heat exchanger assembly is formed by combining one or two of a plurality of flat plate type finned tube heat exchangers or V-shaped finned tube heat exchangers with a plurality of partition plates; the zigzag folding line type finned tube heat exchanger assembly is zigzag folding line type on a section perpendicular to the long side of the fin.

Further, the cross section of the zigzag fold line type finned tube heat exchanger assembly perpendicular to the long sides of the fins is of an N type, or the cross section perpendicular to the long sides of the fins is of a W type formed by a V type finned tube heat exchanger, a baffle plate and a flat plate type finned tube heat exchanger; or consists of a V-shaped finned tube heat exchanger, 2 baffles and 2 flat plate type finned tube heat exchangers.

Further, the included angle gamma between the baffle plate and the flat plate type finned tube heat exchanger is 0.5 alpha;

the included angle epsilon between the baffle plate and the V-shaped finned tube heat exchanger is 0.5 alpha.

The heat exchange tubes of the zigzag folding line type finned tube heat exchanger assembly are parallel to the zigzag edges; the fin group of the fin tube heat exchanger is orthogonally sleeved on the heat exchange tube.

The zigzag fold line type finned tube heat exchanger assembly, the upper bottom plate, the lower bottom plate, the left side plate and the right side plate are combined into an outer heat exchanger negative pressure cavity.

The heat exchange tube is parallel or basically parallel with the upper bottom plate and the lower bottom plate and is in oblique relation with the left side plate and the right side plate.

The zigzag fold line type finned tube heat exchanger assembly divides a heat exchange air duct into a front cavity and a rear cavity, the front cavity is an air inlet cavity, the rear cavity is communicated with an air suction port of the fan set and is a negative pressure cavity of the external heat exchanger;

preferably, the heat exchange tube forms an obtuse angle with the side wall of the negative pressure cavity of the adjacent outer heat exchanger.

Further, the negative pressure cavities of the 2 outer heat exchangers are arranged up and down or side by side left and right. That is, the outer heat exchangers are arranged up and down or side by side.

Further, the back plate is provided with at least 2 air outlets; and a fan is arranged at each air outlet to form a fan wall.

Further, the fan adopts a centrifugal fan or an axial flow fan.

Further, the centrifugal fan is a backward inclined outer rotor centrifugal fan.

Preferably, the back plate is provided with 4 or 6 air outlets; and a fan is arranged at each air outlet to form a fan wall.

Further, the exhaust cavity is a cavity with a unidirectional air outlet and comprises a vertical exhaust cavity or consists of a vertical exhaust cavity and a transverse exhaust cavity which are mutually communicated; or consists of a vertical exhaust cavity and a lateral exhaust cavity which are communicated with each other; the transverse exhaust cavity is arranged below the bottom plate of the negative pressure cavity of the outer heat exchanger or above the top plate of the negative pressure cavity of the outer heat exchanger.

Further, the back side of the back plate of the exhaust cavity is provided with a compressor cavity for installing a fluorine circuit component comprising an air conditioner compressor, a four-way valve, an expansion valve and an electric box, or one side outside the negative pressure cavity of the outer heat exchanger of the shell is provided with a compressor cavity for installing a fluorine circuit component comprising an air conditioner compressor, a gas-liquid separator, a four-way valve, an expansion valve and an electric box;

the gas-liquid separator, the air conditioner compressor, the four-way valve, the external heat exchanger and the expansion valve are communicated with a refrigerant pipeline of the air conditioner indoor unit to form a refrigerant circulation loop of the air conditioning system.

Further, an exhaust section is arranged at the air outlet.

Further, a plurality of flow guide plates are arranged in the exhaust section; the air guide plate sheet is parallel to or nearly parallel to the shutter sheets, or the air guide plate sheet is vertically arranged and provided with an angle for guiding the exhaust air flow to deviate from the air conditioner host.

Further, a diving type exhaust section is arranged at the air outlet; a plurality of flow guide plates are arranged in the diving type exhaust section.

Further, an outer convex exhaust section is arranged at the air outlet; a plurality of flow guide plates are arranged in the convex exhaust section.

Further, the sides of the negative pressure cavity and the exhaust cavity of the external heat exchanger are provided with a compressor cavity for placing a fluorine circuit component comprising a compressor, a gas-liquid separator, a four-way valve, an expansion valve and an electric box.

Further, the air conditioner main unit is also provided with an intermediate heat exchanger, and two paths of heat exchange medium channels of the intermediate heat exchanger are respectively a refrigerant channel and an air conditioner water channel of the air conditioner main unit; the refrigerant channel is connected with a fluorine path of the air conditioner host; the air conditioner water channel is connected with an air conditioner indoor heat exchanger.

The utility model provides an equipment platform, the host computer integration sets up in outer corridor type equipment platform, the air outlet in chamber of airing exhaust is towards outer facade of outer corridor type equipment platform.

Further, an exhaust section is arranged at the air outlet; the exhaust section is arranged adjacent to the outer vertical face shutter of the outer corridor type equipment platform.

Further, a diving type exhaust section is arranged at the air outlet; the diving type exhaust section is arranged adjacent to the outer vertical face shutter of the outer corridor type equipment platform; the deflector plates of the dive exhaust section are parallel or nearly parallel to the louver plates.

Further, an exhaust section is arranged at the air outlet; an opening structure matched with an exhaust section is arranged on the outer elevation shutter of the outer corridor type equipment platform; the exhaust section is embedded into the shutter opening structure.

Further, an outer convex exhaust section is arranged at the air outlet; an opening structure matched with the outer convex type exhaust section is arranged on the outer vertical surface shutter of the outer corridor type equipment platform; the outer convex exhaust section is embedded into the shutter opening structure.

Further, the opening structure of the shutter is rectangular, and the long side of the shutter is parallel to the bottom side or the side of the equipment platform.

Compared with the prior art, the utility model has the following beneficial effects:

the rear-mounted double-air-duct host fusion of the fan has the advantages that:

(1) high-efficiency heat exchange air path structure of host fusion external heat exchanger assembly is constructed, and energy density of host is improved

The utility model takes a horizontal V-shaped finned tube heat exchanger as a basic unit of two external heat exchanger assemblies of a main machine fusion body, and arranges the horizontal V-shaped finned tube heat exchanger in a limited space of the fusion body in parallel with the direction of an air inlet surface of an air inlet of the main machine, and spreads the air inlet surface of the horizontal V-shaped finned tube heat exchanger to obtain a large-area ventilating surface of the heat exchanger assembly, and spreads the ventilating surface of the large-area heat exchanger assembly for the second time to obtain a large-area finned heat transfer surface.

The main engine fusion body of the utility model is in the chain flow of medium-speed air intake of the air flow of the external heat exchanger, the fins of the fin planing tool are planed in a gradient manner for dispersion and deceleration, heat exchange is carried out on a huge quantity of fins of the heat exchange area S on a huge total ventilation surface, collection and acceleration are carried out, a fan is boosted and discharged into a vertical exhaust cavity, a low-level horizontal exhaust cavity is discharged at a high speed, the air flow takes the fan as a power source, and a huge quantity of fins of the V-shaped heat exchanger are continuously arranged as a core, so that an air path structure for efficient heat exchange in the main engine fusion body is constructed;

the centrifugal fans are vertically arranged, the suction inlet straight-face external heat exchanger assembly reduces the upward turning local resistance of the air flow before the suction inlet of the traditional multi-split air blower, leads the air flow lines to enter and exit the fin gaps in a zigzag form in the plane vertical to the long sides of the fins, and generates the local resistance of the air flow striking the fin tip turns, the flow section expanding air flow in the fin gaps decelerates, the flow flowing out of the fin gaps turns accelerates and the like; the local resistance of the air flow entering and exiting the fin gaps is larger than the resistance of the air inlet section before the fin tube heat exchanger assembly and the resistance of the air outlet section after the fin tube heat exchanger assembly, so that the throttling effect of the fin gaps on the air flow is more obvious, and the ventilation heat exchange uniformity and the heat exchange strength of the surface of the fin tube outer heat exchanger assembly are improved.

The utility model breaks through the non-uniformity problem of vertical ventilation heat exchange of the traditional multi-split external heat exchanger, the height of the external heat exchanger can break through the traditional design of about 1200mm of the multi-split external heat exchanger, the height is improved to more than 2000mm, and the energy density of the main machine fusion body is improved.

(2) Creates conditions for constructing a through shutter air path by matching with the outer vertical surface of the equipment platform

The utility model has compact structure, and the air inlets of the air outlets of the host fusion body are arranged in the same direction, on the same side and up and down, thus preparing conditions for installing the host fusion body on the equipment platform and constructing the structure of the shutter air path of the outer elevation through the host fusion body by matching with the outer elevation of the equipment platform;

according to the utility model, under the design concept that the area of the air inlet of the main machine fusion body is equal to the area of the air outlet of the main machine fusion body is approximately equal to 2:1, the air exhaust speed is 2 times that of the air inlet, the air exhaust dynamic pressure head is 4 times that of the air inlet dynamic pressure head, the air exhaust speed and the kinetic energy of the external heat exchanger of the main machine fusion body are effectively improved, and the range and the diffusion dilution effect of the air exhaust jet of the main machine fusion body penetrating through the external vertical surface of the equipment platform and entering the environment atmosphere are effectively improved.

The equipment platform for installing the host fusion of the blower rear double-air-duct double-refrigerating system has the advantages that:

(1) High-efficiency wind path system for building external vertical surface of crossing equipment platform

The utility model establishes the pneumatic layout that the middle-speed air inlet and the bottom air outlet of the upper middle part of the platform outer vertical surface and the main machine fusion body are arranged at the same direction and the same side, the air inlet area is equal to the air outlet area which is approximately equal to 2:1, the main sections of the air inlet channels of the two outer heat exchanger assemblies of the air conditioner water heater are taken into the main machine fusion body, and an air path structure system of the side outlet of the platform side of the main machine fusion body is constructed;

according to the utility model, under the design concept that the air exhaust area is approximately equal to 2:1, the air exhaust speed is 2 times of the air inlet speed, and the air exhaust dynamic pressure head is 4 times of the air inlet dynamic pressure head, so that the air exhaust speed, kinetic energy and external exhaust effect of the external heat exchanger of the main machine fusion body are effectively improved;

the design of the low-position exhaust cavity with the deflector plate group, which is close to the ground of the equipment platform, can be matched with the inclined louver structure of the decorative louver conventionally used on the outer vertical surface of the building, so that exhaust air flow is led to be led to the atmosphere by the inclined louver of the outer vertical surface to be subjected to small-angle diving diffusion, the function and the decoration of the outer vertical surface of the louver type building for preventing wind and rain from invading the equipment platform are maintained, the range and the diffusion dilution effect of the exhaust of the external heat exchanger of the host fusion body penetrating the outer vertical surface of the equipment platform into the atmosphere are effectively improved, and the problem of serious attenuation of the host performance of the air-conditioning water heater caused by the louver of the outer vertical surface of the equipment platform is fundamentally solved.

(2) Improving the power density of the equipment platform and reducing the occupation area of the equipment platform

According to the main engine fusion body adopted by the utility model, the horizontal V-shaped finned tube heat exchanger is continuously arranged in the limited space of the fusion body, the large-area heat exchanger ventilation surface is unfolded, and the large-area fin heat transfer surface is secondarily unfolded on the large-area heat exchanger ventilation surface, so that the total fin heat transfer area of the main engine fusion body external heat exchanger assembly is effectively enlarged, the heat transfer temperature difference of the heat exchanger body is reduced, the evaporating pressure is increased, the condensing pressure is reduced, the refrigerating capacity and the energy efficiency ratio of a refrigerating air-conditioning system are increased, and the heavy-load main engine fusion body is constructed.

The utility model creates a main machine fusion body with heavy load characteristics by a device platform layout mode, reduces the transverse distance between the main machine fusion bodies, realizes three-in-one of a pedestrian passageway, a maintenance passageway and a copper pipe cable bridge passageway, and develops the top idle space of the device platform by lifting the main machine height through the main machine low-position exhaust cavity, thereby greatly reducing the occupation area of an ineffective low-efficiency space and a ventilation blind area on the device platform, greatly improving the average refrigerating and heating power density (namely the refrigerating and heating capacity per unit area) of the device platform from the current situation of about 11.6 kw/-square meter to more than 25 kw/-square meter, improving the efficiency by more than 100%, and saving the area of the device platform by more than 1/2 under the same refrigerating and heating loads.

(3) Lateral width of outer vertical face of equipment occupied by air inlet and outlet face of main machine fusion body

The width of the outer vertical face of the building is an important resource next to the building area in the building index system, and the current situation that the air inlet and outlet face of the main machine of the air conditioner occupies the transverse width of the outer vertical face of the building equipment is overlarge, so that ventilation, lighting and visual communication between the inner space of the same-layer building and the external environment are blocked, and the air inlet and outlet face of the main machine of the air conditioner is a prominent problem in the design of building heating, ventilation and air conditioning.

According to the utility model, through the two external heat exchangers and the two air inlet and outlet paths of the external heat exchangers in the main body of the recombined main body, the power density of the main body of the air-conditioning water heater is improved, and the structural relationship between the main body of the recombined main body and the equipment platform is greatly reduced, so that the effective dead space is greatly reduced, the transverse width of the outer vertical surface of the building equipment layer occupied by the air inlet and outlet surfaces of the main body of the air-conditioning water heater is greatly reduced under the same building heat load condition, and ventilation lighting and visual communication between the inner space of the same-layer building and the external environment are ensured.

(4) Facilitating host fusion detection maintenance

The main machine fusion body adopted by the utility model is characterized in that fluorine circuit components such as a compressor, a gas-liquid separator, a four-way valve, an expansion valve, an electric box, a fan and the like are intensively arranged in a compressor cavity outside an exhaust cavity of an outer heat exchanger assembly;

According to the utility model, the cavity panel of the host fusion compressor is arranged towards the inner side maintenance channel of the equipment platform, so that the host fusion inspection maintenance is greatly facilitated: when a fault occurs, a compressor cavity panel of the host fusion body is opened on a maintenance channel at the inner side of the equipment platform, and a compressor, a gas-liquid separator, a four-way valve, an expansion valve, an electric box, a fan and other fluorine circuit components which possibly have the fault are completely removed, so that the inspection and maintenance are very convenient, and the history inspection and maintenance problems of the host fusion body (an external machine) are solved.

The utility model not only eliminates the obstruction of the shutter to the exhaust of the external heat exchanger, effectively penetrates through the air path of the external heat exchanger and ensures the thermal performance of the main engine fusion body, but also maintains the decoration of the outer facade of the shutter, thereby realizing the perfect unification of the decoration of the outer facade of the equipment platform, the visual effect of the outer facade of the building and the excellent thermal performance of the main engine fusion body.

Drawings

FIG. 1 is a top view of an external heat exchanger air path of a rear-inlet front-outlet type central air conditioner host machine of an air path, wherein the air flow rate is reduced due to the fact that a device platform shutter prevents air outlet static pressure from rising, and part of air outlet flows back to an air inlet;

FIG. 2 is a three-dimensional cross-sectional view of a fan rear-mounted dual-air-duct dual-refrigeration system host fusion of embodiment 1;

FIG. 3 is a vertical cross-sectional view of a fan rear-mounted dual-air-duct dual-refrigeration system host fusion of embodiment 1;

FIG. 4 is a horizontal cross-sectional view of a fan rear dual air duct dual refrigeration system host fusion of example 1;

FIG. 5 is a longitudinal vertical cross-sectional view of the running air flow of the main unit fusion of the fan rear-mounted double-air-duct double-refrigerating system of embodiment 1;

FIG. 6 is a schematic view of a three-dimensional structure of a finned tube heat exchanger assembly;

FIG. 7 is a horizontal cross-sectional view of a "fin planer" at the fin gap entrance to intercept the incoming airflow, stepped planing to reflect the incoming airflow into the fin gap to complete heat exchange with the fins, and then to discharge the fin gap;

FIG. 8 is a schematic diagram of a host fusion system of a fan rear-mounted double-air-duct double-refrigeration system of embodiment 1;

FIG. 9 is a horizontal cross-sectional view of a fan rear dual air duct dual refrigeration system host fusion with a compressor chamber side setup of example 2;

FIG. 10 is a horizontal cross-sectional view of a fan rear dual air duct dual refrigeration system host fusion employing a zigzag-type finned tube heat exchanger assembly of example 3;

FIG. 11 is a top view of the operational airflow of a fan rear dual air duct dual refrigeration system host fusion employing a zigzag-type finned tube heat exchanger assembly of example 3;

FIG. 12 is a vertical cross-sectional view of the airflow operation of the equipment platform of the host fusion of the dual-air-duct dual-refrigeration system with the blower installed in embodiment 4;

FIG. 13 is a vertical cross-sectional view of the airflow running of the equipment platform with the host fusion low-level strip-shaped air outlet embedded in the outer-elevation shutter opening structure;

FIG. 14 is a top plan view of a rear fan wall side-draft air-flow side-drift host fusion;

FIG. 15 is a top plan view of the airflow operation of the rear fan wall side exhaust airflow side drift host fusion;

FIG. 16 is a top plan view of the equipment platform airflow operation with the rear fan wall mounted with the side exhaust airflow side drift jet host fusion;

FIG. 17 is a schematic diagram showing the distribution of the air inlet surface and the air outlet surface on the outer vertical surface of the equipment platform when the rear fan wall lateral air exhaust airflow lateral drifting host fusion body operates in summer;

FIG. 18 is a schematic view of the vertical airflow collection and upward movement of a building during summer operation of the equipment platform mounted side-to-side exhaust mainframe assembly.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to the drawings of the embodiments of the present application. It will be apparent that the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments, based on the described embodiments, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of protection of the present application.

Unless otherwise defined, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this application belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

In the description of the present utility model, it should be understood that the terms "transverse," "longitudinal," "length," "upper," "lower," "left," "right," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Definition: the direction perpendicular to the outer vertical face of the outer corridor type equipment platform is set to be longitudinal, and the direction parallel to the outer vertical face of the outer corridor type equipment platform is set to be transverse.

Example 1

As shown in fig. 2-8, a fan rear-mounted double-air-duct double-refrigerating system host fusion,

comprises a shell 1,2 groups of refrigerant circulation systems arranged in the shell and an exhaust cavity 3; the refrigerant circulation system includes the outer heat exchanger 2 and the compressor 41;

each group of refrigerant circulation systems has an independent outer heat exchanger negative pressure chamber 22, and the outer heat exchanger negative pressure chamber 22 includes the outer heat exchanger 2, a part of the casing, and the back plate 21.

The negative pressure cavities of the 2 external heat exchangers are arranged up and down, namely the external heat exchangers are arranged up and down.

The outer heat exchanger 2 and the outer heat exchanger negative pressure cavity 22 of the air conditioner are positioned at the upper part; the outer heat exchanger 2 and the outer heat exchanger negative pressure cavity 22 of the air energy water heater are positioned at the lower part.

The back plate 21 is provided with air outlets 23 of the negative pressure cavities 22 of the 6 external heat exchangers, and the air outlets 23 are provided with fans 24 to form a fan wall. The fan 24 is positioned in the exhaust cavity 3, and the fan 24 is a backward inclined outer rotor centrifugal fan.

Each outer heat exchanger negative pressure cavity corresponds to 1 exhaust cavity 3, namely 2 exhaust cavities 3 are arranged up and down.

Each exhaust chamber 3 corresponds to 1 air outlet 31.

The negative pressure cavity 22 of the external heat exchanger of the air conditioner is provided with 4 air outlets 23; the negative pressure cavity 22 of the outer heat exchanger of the air energy water heater is provided with 2 air outlets 23.

The back plate of the exhaust chamber 3 is provided at the rear side thereof with a compressor chamber 4 for placing a fluorine circuit assembly including a compressor 41, a gas-liquid separator, a four-way valve, an expansion valve and an electric box.

The gas-liquid separator, the air-conditioning compressor, the four-way valve, the external heat exchanger and the expansion valve are communicated with a refrigerant pipeline of the air-conditioning indoor unit to form a refrigerant circulation loop of the air-conditioning system.

The air outlet 23 is communicated with the air exhaust cavity 3, and an air outlet 31 of the air exhaust cavity 3 is arranged on the same side as the air inlet 11 of the shell; the outer heat exchanger 2 is an air inlet of the negative pressure cavity 22 of the outer heat exchanger.

The air outlet 31 of the air discharge chamber 3 is directed towards the short side of the housing.

The exhaust cavity 3 is a cavity with a unidirectional air outlet and consists of a vertical exhaust cavity and a horizontal exhaust cavity which are mutually communicated; wherein the transverse exhaust chamber is arranged below the bottom plate of the negative pressure chamber 22 of the outer heat exchanger.

The air outlet 31 of the air exhaust cavity is connected with a diving type air exhaust section 33 which is matched with the shutter structure of the outer vertical surface of the equipment platform.

The connection between the air outlet 31 of the host fusion body and the diving type air exhaust section 33 of the blind structure of the outer elevation of the equipment platform can be realized by adopting a riveting mode or a flange connection mode.

A diving type exhaust section 33 is arranged at the air outlet 31; a plurality of deflector plates 34 are arranged in the diving type exhaust section 33. The deflector sheets 34 of the dive exhaust section 33 are parallel or nearly parallel to the louvers of the equipment platform.

The deflector sheet 34 is used for restricting and inducing the direction of the exhaust air flow and is abutted against the outer vertical surface shutter.

When the air conditioner main unit of the embodiment operates, the air exhaust air flow sent into the air exhaust cavity is boosted by the centrifugal fan, is emitted out from the air outlet at a high speed (about 8 m/s), enters the diving type air exhaust section 33, under the constraint and induction of the plurality of flow guide plates 34 arranged in the diving type air exhaust section 33, the air exhaust air flow rays and the shutter window sheets are in parallel or nearly parallel states, the interception area of the shutter window sheet group to the air exhaust air flow is minimum, the interception resistance is minimum, the air exhaust air flow passes through the shutter window sheet group of the outer facade of the equipment platform and is discharged to the external environment atmosphere at a high speed, and the far-range diffusion dilution is carried out.

As shown in fig. 6 to 7, the external heat exchanger 2 of this example is a horizontal-section V-shaped fin tube heat exchanger assembly as a specific embodiment. The horizontal section V-shaped finned tube heat exchanger assembly consists of 4 flat plate type finned tube heat exchangers 37; or 2 fin tube heat exchangers 40 with V-shaped cross sections perpendicular to the long sides of the fins are arranged continuously. The V-type fin tube heat exchanger 40 is composed of 2 flat plate type fin tube heat exchangers 37.

As shown in fig. 7, the flat plate type fin tube heat exchanger includes a fin plate 110 and heat exchange tubes 115; a plurality of fin plates 110 parallel to each other and spaced apart from each other by a certain interval to form a fin group; passes through the heat exchange tubes 115 in a direction perpendicular to the plane of the fin plate 110.

The heat exchange tube 115 connects the lotus header gas collection tube 133 and the fluorine line 134.

The lotus header gas collectors 133 at the vertices of each V-shape are arranged in one-to-one correspondence with the V-shape finned tube heat exchangers 40, and one set of lotus header gas collectors 133 serves 2 flat plate-type finned tube heat exchangers 37 constituting the V-shape.

The section of the horizontal section V-shaped finned tube heat exchanger assembly perpendicular to the long sides of the fins is a broken line, and more specifically, is a W shape;

the fin long sides of the flat plate-type fin tube heat exchanger 37 are disposed in the vertical direction or in the nearly vertical direction.

The vertex angle alpha of the V-shaped fin tube heat exchanger is 15-110 degrees.

As an alternative embodiment, the V-fin tube heat exchanger has a top angle α of 30 ° to 90 °.

As an alternative embodiment, the V-fin tube heat exchanger has a top angle α of 30 ° to 60 °.

As shown in fig. 6, one side of the section of the horizontal section V-shaped finned tube heat exchanger assembly vertical to the long sides of the fins is a heat exchanger air inlet surface, and the other side is a heat exchanger air outlet surface; the air outlet surface belongs to the area of the negative pressure cavity 22 of the external heat exchanger.

The incident surface of the air inlet flow is each flat plate type finned tube heat exchanger in the horizontal section V-shaped finned tube heat exchanger assembly, and the intersection angle between the air inlet flow and the tip of each fin plate 110 on each flat plate type finned tube heat exchanger 37 is an obtuse angle beta; the obtuse angle beta is 97.5-145 degrees; the incoming air stream impinges the tips of each fin plate 110 at an obtuse angle beta and is reflected by the fin tips into the fin gap to the outer heat exchanger negative pressure chamber 22.

The flow rate of the air flow entering each fin gap d is equal to the air inlet flow intercepted by the vertical distance delta between the tips of the front fin plate and the rear fin plate of the flat plate type finned tube heat exchanger on the air inlet section;

delta = d.sin alpha/2, where alpha is the apex angle of the V-type finned tube heat exchanger;

the vertical distance delta value of the tips of the front fin plate and the rear fin plate of the flat plate type fin tube heat exchanger on the air inlet section is 0.13 d-0.7 d.

As a specific embodiment, the air flow speed of the fin gap is 1/3 of the air inlet speed, and the incidence obtuse angle beta corresponding to the vertex angle alpha of the V-shaped fin tube heat exchanger is 39 degrees and 109.5 degrees.

As shown in fig. 4 and 5, the air inlet 11, the outer heat exchanger 2, the outer heat exchanger negative pressure cavity 22, the fan 24, the air exhaust cavity 3 and the air outlet 31 of the main unit fusion body of the present embodiment form an air inlet and outlet path with a progressive layout of the rear of the outer heat exchanger and the front of the fan and the air exhaust cavity.

The embodiment of the host fusion body of the fan rear-mounted double-air-duct double-refrigerating system creatively reconstructs an outer heat exchanger structure, an outer heat exchanger air path structure and an air conditioner host structure of the household air conditioner host, and creates conditions for fusion of the air conditioner host and an equipment platform.

(1) Innovative structure design of air conditioner main unit

Compared with a classical household air conditioner host, the host fusion body of the embodiment is characterized in that: the refrigerant circulation system with 2 groups is arranged in the shell, a horizontal section V-shaped finned tube heat exchanger assembly with an oversized heat exchange area is adopted, the horizontal section V-shaped finned tube heat exchanger assembly is arranged in front in the whole structure, and a fan wall and an exhaust cavity are arranged behind and an air outlet is arranged in front.

6-7, the horizontal section V-shaped finned tube heat exchanger assembly of the embodiment comprises a W-shaped structure consisting of 4 flat plate type finned tube heat exchangers; or a W-shaped structure is formed by a V-shaped finned tube heat exchanger formed by bending 2 flat plate type finned tube heat exchangers; or a W-shaped structure is formed by a flat plate type finned tube heat exchanger and a V-shaped finned tube heat exchanger formed by bending the flat plate type finned tube heat exchanger; the section of the fin tube external heat exchanger perpendicular to the long sides of the fins is a folded line type.

In the limited space of the main unit fusion body, the embodiment is parallel to the direction of the air inlet surface of the air conditioner main unit air inlet, and at least 1V-shaped fin tube heat exchanger assembly with a horizontal section is respectively arranged up and down. The air inlet surface of the V-shaped finned tube heat exchanger with the horizontal section is unfolded to obtain a large-area ventilating surface of the outer heat exchanger, and the large-area ventilating surface of the outer heat exchanger is unfolded for the second time to obtain a large-area fin heat transfer surface, so that the total fin heat transfer area S of the outer heat exchanger is effectively enlarged, the heat transfer temperature difference delta t of the outer heat exchanger body is reduced, the evaporating pressure is increased, the condensing pressure is reduced, and the refrigerating capacity Q and the energy efficiency ratio COP of a refrigerating air conditioning system are improved.

As shown in fig. 4-5, the embodiment is provided with an air inlet of an external heat exchanger, an external heat exchanger assembly, a fan wall, an exhaust cavity and an air outlet of the exhaust cavity of the refrigerant circulation system of 2 groups of air conditioner hosts and water heater hosts, so that 2 independent external heat exchanger air paths are formed.

In this embodiment, 2 outer heat exchanger negative pressure chambers 22 are disposed up and down, each outer heat exchanger negative pressure chamber 22 is formed by combining a bottom plate, a side plate 25, a back plate 21, an outer heat exchanger 2 and a top plate (i.e. the top plate of the housing 1), wherein the bottom plate of the upper outer heat exchanger negative pressure chamber 22 and the top plate of the lower outer heat exchanger negative pressure chamber 22 are combined into one, and share the same partition plate.

The back plate 21 is arranged opposite to the horizontal continuous V-shaped finned tube heat exchanger assembly with a horizontal section, an outer heat exchanger negative pressure cavity air outlet 23 is arranged on the back plate 21, and the outer heat exchanger negative pressure cavity air outlet 23 corresponds to an air suction inlet of the backward inclined outer rotor centrifugal fan; the air suction port of the backward inclined outer rotor centrifugal fan faces to the outer heat exchanger 2.

The horizontal section V-shaped finned tube heat exchanger assembly which is transversely arranged is an air inlet of the negative pressure cavity 22 of the outer heat exchanger; an exhaust cavity 3 of the centrifugal fan is arranged on the outer side of each back plate 21, and the area of an air outlet 31 of the exhaust cavity 3 is 15-60% of the area of an air inlet surface of the negative pressure cavity 22 of the external heat exchanger. The method comprises the steps of carrying out a first treatment on the surface of the

In this embodiment, the compressor chamber 4 is disposed at the rear side of the back plate of the exhaust chamber 3, and 2 groups of circuit components such as the compressor 41, the four-way valve, the expansion valve and the like of the refrigerant circulation system disposed in the casing and the electric box are disposed.

(2) Innovative design of air inlet and outlet field of main machine integrated external heat exchanger

The main engine fusion body of the fan rear-mounted double-air-duct double-refrigerating system comprises an air inlet 11, an outer heat exchanger negative pressure cavity 22, an air exhaust cavity 3 and an air outlet 31 of the air exhaust cavity, and forms an air inlet and outlet path of the outer heat exchanger, wherein the air inlet and outlet path is short in construction path, low in resistance, large in air quantity and high in heat exchange strength.

As shown in fig. 8 and 9, when each external heat exchanger in this embodiment performs ventilation and heat exchange, the centrifugal fan is used as power from the air inlet 11 to the air outlet 31, the heat exchange air flow undergoes two static pressure-dynamic pressure conversions, the first static pressure-dynamic pressure conversion realizes high-speed air suction at the air inlet of the centrifugal fan, and the second static pressure-dynamic pressure conversion realizes high-speed air discharge at the air outlet 31 of the air exhaust cavity; in addition, the air flow lines entering and exiting the fin gaps of the heat exchanger are fold line type air flow lines turning twice and are positioned in a plane perpendicular to the long sides of the fins, but not in a plane parallel to the fins; these two points are the most essential movement characteristics of the total ventilation and heat exchange process of the two external heat exchangers in the embodiment.

In the embodiment, each external heat exchanger establishes an air inlet and outlet field through the operation of a plurality of centrifugal fans on the corresponding fan wall: the method comprises the steps that 6 centrifugal fans on the fan wall pump out air in a negative pressure cavity of an outer heat exchanger to generate negative pressure in the cavity, ambient air under static pressure (gauge pressure) of 0Pa is pulled to enter the main machine fusion body from an air inlet at a medium speed (about 4 m/s), the air inlet flow of a main body is shaved in a ladder manner through a plurality of fin shavers to realize scattered deceleration of the air inlet flow, the air at a low speed (below 2 m/s) flows through fin gaps of the outer heat exchanger to finish heat exchange, then enters the negative pressure cavity of the outer heat exchanger, is gathered and accelerated, and flows into a centrifugal fan air inlet with the lowest full path pressure (the gauge pressure is a negative value) at a high speed to finish primary air static pressure-dynamic pressure conversion; the air flow flowing into the air suction port of the centrifugal fan at high speed is boosted by the fan and sent into an air exhaust cavity with positive pressure relative to the atmospheric environment, and is injected into the atmospheric environment from the air outlet of the air exhaust cavity at high speed (about 8 m/s) under the positive pressure effect of the air exhaust cavity to be diffused and diluted; the heat exchange airflow in the embodiment takes the centrifugal fan as power from the air inlet to the air outlet of the main machine, and is subjected to twice static pressure-dynamic pressure conversion, so that the high-speed suction of the centrifugal fan and the high-speed discharge of the air exhaust cavity are realized.

When the air conditioner main unit of the embodiment operates, the microscopic process that the air flow enters and exits the fin gaps and flows at a low speed in the fin gaps is an important link of the external heat exchanger entering and exiting the wind field.

At the section of the air inlet E-E, medium-speed air flow of about 4m/s flowing in from the outer vertical surface of the equipment platform is pushed to the section F-F of the fin gap inlet in a uniform laminar flow mode, the line of the air inlet air flow at the section F-F and the fins at the back side of the gap form an obtuse angle relation, and the fins at the back side of the gap are used as a plane cutter to plane a piece of air flow from the air inlet main body air flow and plug into the fin gap; the main body air inlet airflow which is "dug" is intercepted by the blade tip of the "fin planer" at the F-F position, and the main body air inlet airflow impinges on the blade tip of the "planer" of the fin at the back side of the gap at an obtuse angle, and is diffused and decelerated in the fin gap after being reflected by the fin at the front side of the gap; the air flow which is planed by the fin planing tool and is subjected to collision diffusion deceleration is pulled by negative pressure of the negative pressure cavity at about 1.5m/s, and flows out of the fin channel against the resistance of the fin gap channel; the low-speed air flow reaching the G-G section of the fin gap outlet is accelerated again to a medium-speed air flow of about 4m/s under the negative pressure pulling of the negative pressure cavity, and is collected and discharged at the H-H section.

When the air conditioner host machine of the embodiment operates, heat exchange is carried out between the air flow between the refrigerant in the condenser pipeline of the evaporator and the clearance air flow between the fins outside the pipeline, so that energy coupling is realized.

In this embodiment, on one side of the refrigerant, the refrigerant is driven to circulate by the compressor, and the refrigerant absorbs heat from the evaporator in the low-temperature air environment and releases heat from the condenser in the high-temperature air environment by high-efficiency phase change heat exchange of the refrigerant during circulation.

The present embodiment provides a compressor chamber 4 for housing circuit components including a compressor 41, a gas-liquid separator 42, a four-way valve 43, an expansion valve 45, and an electric box, and a power cable signal line electric box, on the rear side of the back plate of the exhaust chamber 3.

The main engine fusion body of the embodiment, the 2-section type finned tube heat exchanger assembly and the 2-section type external heat exchanger negative pressure cavity 2 are separated by the middle partition plate 38 and are respectively communicated to form independent air paths, the 2 exhaust section air outlets directly refer to the louver gaps of the outer elevation of the equipment platform, and the air flow path structure of the external heat exchanger assembly with short path, low resistance, large air quantity and high heat exchange strength is constructed to respectively serve the air conditioner main engine external heat exchanger assembly and the air energy water heater external heat exchanger assembly.

The embodiment realizes the structural innovation of large span for the air inlet flow path and the air outlet flow path of the external heat exchanger.

In this embodiment, the compressor 41 is used as power to drive the refrigerant to circulate in a closed circuit on the refrigerant side, and the refrigerant performs high-efficiency phase change heat exchange in the circulation process, so as to realize energy coupling in the heat exchange process of the air flow between the 2 external heat exchangers of the main body equipment and the fins.

In this embodiment, the compressor 41, the four-way valve, the expansion valve, the gas-liquid separator and other refrigerating circuit elements and power cable signal line and other circuit components of the 2 sets of refrigerant circulation systems of the air conditioner and the air energy water heater are arranged in the compressor cavity.

The main engine fusion of the embodiment uses the compressor 41 as power to drive the refrigerant to circulate in a closed circuit on the refrigerant side, and the refrigerant exchanges heat in a phase change manner with high efficiency in the circulation process, so as to realize energy coupling in the heat exchange process of the air flow between the 2 external heat exchanger assemblies of the main engine fusion and the fins.

The components of the refrigerant circulation system, the outer heat exchanger 2, the refrigerant connecting pipe, the indoor unit heat exchanger and the like form an air conditioner refrigeration circulation loop and an air energy water heater refrigeration circulation loop according to the sequence of the compressor 41, the four-way valve, the condenser, the expansion valve, the evaporator, the four-way valve, the gas-liquid separator and the compressor 41; the compressor 41 is used as refrigeration cycle loop power, a high-low pressure state of a refrigerant is respectively established in a condenser evaporator pipeline, the refrigerant is driven to circularly flow and repeatedly change phase in the refrigeration cycle loop to realize heat transfer, namely, an air conditioner refrigerating system absorbs heat of low-temperature ambient air flowing through gaps of fins through evaporation and heat absorption of refrigerant liquid in an inner pipeline of the evaporator and absorption of heat absorption areas of giant fins connected with the copper pipe in an ascending manner, and heat is released from high-temperature ambient air flowing between the fins through condensation and heat release of high-temperature high-pressure refrigerant gas in the condenser pipeline and heat release of the high-temperature ambient air flowing through heat release areas of the giant fins connected with the copper pipe in an ascending manner, so that heat is transferred from the low-temperature environment of the air conditioner evaporator to the high-temperature environment of the condenser; the air energy water heater refrigerant circulation system absorbs heat of air in the atmosphere flowing through fin gaps through evaporation heat absorption of refrigerant liquid in an inner pipeline of an evaporator and then through a huge fin heat absorption area of a copper pipe, and heat is transferred from the atmosphere environment where the water heater evaporator is located to the high-temperature hot water environment where the condenser is located through condensation heat release of high-temperature high-pressure refrigerant gas in a condenser pipeline of the water tank.

The host fusion body of the embodiment can independently operate, namely, 2 sets of refrigerant circulation systems can synchronously operate or asynchronously operate.

Example 2

As shown in fig. 9, both the present embodiment and embodiment 1 are double-refrigerating-system fusion hosts with the front outer heat exchanger assembly and negative pressure cavity and the rear centrifugal fan and exhaust cavity.

The embodiment is different in that the dual refrigeration system is an air conditioning system and an air energy water heater system, and the compressor cavity is arranged on the side surface of the air exhaust cavity of the negative pressure cavity of the main machine fusion body; in the embodiment, as the compressor cavity is laterally arranged, the transverse width of the host fusion body is increased, the longitudinal thickness is reduced, and the method is more suitable for residential equipment platforms with smaller longitudinal depth.

Example 3

As shown in fig. 10-11, this embodiment and embodiment 1,

the principle and the structure of the embodiment are the same as those of the embodiment 1, and the embodiment is a double-refrigerating-system fusion host machine with the front-mounted external heat exchanger assembly and negative pressure cavity and the rear-mounted centrifugal fan and exhaust cavity.

The present embodiment differs in that,

the outer heat exchanger 2 is a zigzag fold line type finned tube heat exchanger assembly formed by combining three flat plate type finned tube heat exchangers 37 and a partition plate 39; wherein, two flat plate type finned tube heat exchangers 37 form a V-shaped finned tube heat exchanger 40, two flat plate type finned tube heat exchanger end plates can be connected to form the V-shaped finned tube heat exchanger 40, or a plurality of single-row tube flat plate type finned tube heat exchangers are bent into a V shape and then assembled into a composite V-shaped finned tube heat exchanger; the other flat plate type finned tube heat exchanger 37 is independently arranged outside the V-shaped finned tube heat exchanger, a partition plate 39 is arranged between the other flat plate type finned tube heat exchanger and the V-shaped finned tube heat exchanger, the space between the partition plate 39 and the finned tube heat exchanger is an exhaust cavity 3 of the finned tube heat exchanger, and the exhaust cavity is communicated with the negative pressure cavity 22 of the external heat exchanger.

The angle of the included angle gamma between the partition 39 and the flat plate type fin tube heat exchanger 37 is 0.5α;

the angle of the angle epsilon between the baffle 39 and the V-fin tube heat exchanger 40 was 0.5α.

The zigzag fold line type finned tube heat exchanger assembly is zigzag in cross section perpendicular to the long sides of the fins.

The heat exchange tubes of the zigzag folding line type finned tube heat exchanger assembly are parallel to the zigzag edges; the fin plate group of the fin tube heat exchanger is orthogonally sleeved on the copper tube.

The zigzag fold line type finned tube heat exchanger assembly, the upper bottom plate, the lower bottom plate, the left side plate and the right side plate are combined into an outer heat exchanger negative pressure cavity. The outer heat exchanger negative pressure cavity 22 is formed by combining a bottom plate, a side plate, a back plate 21, an outer heat exchanger 2 and a top plate (namely, the top plate of the shell 1), wherein the bottom plate of the upper outer heat exchanger negative pressure cavity 22 and the top plate of the lower outer heat exchanger negative pressure cavity 22 are combined into a whole, and share the same partition plate.

The heat exchange tube is parallel or basically parallel with the upper bottom plate and the lower bottom plate and is in oblique relation with the left side plate and the right side plate.

The zigzag fold line type finned tube heat exchanger assembly divides a heat exchange air duct into a front cavity and a rear cavity, the front cavity is an air inlet cavity, the rear cavity is communicated with an air suction port of the fan set, and the rear cavity is an outer heat exchanger negative pressure cavity 22;

the heat exchange tube and the side wall of the negative pressure cavity of the adjacent outer heat exchanger form an obtuse angle.

In the embodiment, as the three-plate type finned tube heat exchanger assembly with the V+1 structure is adopted, compared with a single V-shaped finned tube heat exchanger, the heat exchange area is enlarged, and the requirement of an air conditioning system with larger refrigerating capacity is met.

Example 4

As shown in fig. 12, in the embodiment, a host fusion equipment platform of a fan rear-mounted double-air-duct double-refrigeration system is defined by taking an outer vertical surface of the equipment platform as a longitudinal direction and a parallel outer vertical surface as a transverse direction.

The host fusion body of the embodiment 1 is arranged on the equipment platform of the embodiment at intervals transversely, and the air outlets of the air inlets face the outer vertical face, namely the air inlet direction is set to be longitudinal, and the air inlet face perpendicular to the air inlet direction is set to be transverse.

The embodiment of the host fusion equipment platform with the rear double air channels and the double refrigeration systems aims at two major problems that an air conditioner air energy water heater host and the equipment platform are low in energy density, and the equipment platform occupies a transverse width of an outer facade of a building, redefines and reorganizes the host fusion structure of the air conditioner air energy water heater and an outer heat exchanger air path system:

(1) main unit fusion body of air-conditioning air energy water heater adopting high power density

In the embodiment, the host fusion body is adopted, the horizontal V-shaped finned tube heat exchanger is used as a basic unit of two external heat exchanger assemblies of an air-conditioning water heater of the host fusion body, the horizontal V-shaped finned tube heat exchanger is arranged in a limited space of the host fusion body along the transverse direction, the air inlet surface of the horizontal V-shaped finned tube heat exchanger is unfolded to obtain a large-area ventilating surface of the heat exchanger assembly, and the large-area ventilating surface of the heat exchanger assembly is unfolded for the second time to obtain a large-area fin heat transfer surface, so that the total fin heat exchange area of the two external heat exchanger assemblies of the host fusion body is effectively enlarged, the heat transfer temperature difference of the heat exchanger body is reduced, the evaporating pressure is increased, the condensing pressure is reduced, the refrigerating capacity and the energy efficiency ratio of a refrigerating and air-conditioning system are improved, and the external heat exchanger assembly and the host have the characteristic of high power density.

(2) Air path of recombined external heat exchanger assembly and idle low-efficiency space of development equipment platform

In the embodiment, a host fusion body is arranged on an equipment platform in a transverse adjacent manner, and the host fusion body brings main sections of air inlet channels and air exhaust channels of two external heat exchanger assemblies of an air conditioner water heater into a host body; host fusion air inlet and outlet straight-face equipment platform outer vertical face; the host fusion body of the embodiment directly introduces fresh air from the outer vertical surface, and removes the longitudinal and transverse air supply and air distribution air channels of the rear air-conditioning host by bypassing the front row host on the traditional equipment platform while increasing the refrigerating capacity, thereby reducing the inefficient and ineffective space of the equipment platform.

The host machine of the embodiment adopts a lower air outlet mode, and the air outlet of the outer heat exchanger directly discharges the environment atmosphere outside the outer vertical surface from a channel below the chassis of the outer heat exchanger assembly; the embodiment lifts the outer heat exchanger assembly height to the equipment platform top redundancy space;

the embodiment greatly reduces the transverse interval of the host module to about 100mm, and the transverse interval only needs to meet the requirement of longitudinal pulling out and longitudinal feeding in of the host fusion;

in the embodiment, a pedestrian passageway maintenance channel is arranged between an inner wall of an equipment platform and a host fusion body which is transversely arranged; a bridge used for arranging copper pipes connected with an inner machine and an outer machine of an air conditioning system and a bridge of a power cable and a signal wire of a host fusion body are arranged above the maintenance channel, so that a three-in-one bridge channel of the pedestrian channel maintenance channel is realized;

Through the structural innovation, the embodiment develops the idle low-efficiency space of the equipment platform.

When the equipment platform operates, the backward inclined centrifugal fans are vertically arranged in the negative pressure cavities of the two external heat exchangers of the main machine fusion body to operate, air in the negative pressure cavities of the corresponding V-shaped external heat exchanger assemblies is pumped out, negative pressure is generated in the cavities, and ambient air is pulled to penetrate through the outer vertical surfaces of the equipment platform and enter the main machine fusion body; after the external ambient air enters the main machine fusion body, the external ambient air disperses and decelerates under the gradient planing action of the fin planing cutters of the two external heat exchanger assemblies of the air-conditioning water heater, and flows through the fin gaps of the V-shaped external heat exchanger at a low speed, so that the heat exchange between the ambient air and the refrigerant in the copper pipe of the external heat exchanger is realized; the ambient air after heat exchange enters a corresponding negative pressure cavity, is further collected and accelerated, flows into a fan air suction port with the lowest pressure, is boosted by a fan to pass through a vertical air exhaust cavity, a low-level air exhaust cavity and an outer vertical surface, and is injected into the ambient atmosphere at high speed to be diffused and diluted.

Example 5

As shown in fig. 13, an equipment platform, a host fusion is disposed in the outer corridor type equipment platform, and the air outlet 31 of the air exhaust cavity 3 faces the outer vertical surface of the outer corridor type equipment platform 5. The vertical equipment platform outer vertical surface is taken as a longitudinal direction, and the parallel outer vertical surface is taken as a transverse direction.

The air conditioner main unit of the embodiment is similar to the embodiment 1, and adopts a physical structure with a front external heat exchanger and a rear fan and an exhaust cavity; the air conditioner main unit of the present embodiment is different from embodiment 1 in that,

the air outlet 31 is provided with an outer convex type air exhaust section 35 which is matched with the shape of the air outlet; a plurality of deflector plates 34 are arranged in the convex exhaust section 35.

The outer vertical surface shutter of the outer corridor type equipment platform 5 is provided with an opening structure 36 of a matched outer convex type exhaust section 35. The male air discharge section 35 is embedded in the opening structure 36 of the louver 52. When the air conditioner main unit is in operation, the exhaust air of the air outlet 31 passes through the opening structure of the louver 52 to be directly discharged to the ambient atmosphere.

The present embodiment has all the advantages of embodiment 4, and since the frame of the outer convex air exhaust section 35 and the deflector sheet 34 embedded in the opening structure 36 of the shutter 52 are not hidden behind the shutter 52, but the outer environment is straight, the outer surface becomes a part of the outer vertical surface of the visible equipment platform, and the frame of the outer convex air exhaust section 35 and the deflector sheet 34 have decoration, so that the shutter of the outer vertical surface of the equipment platform has increased structural variation and color variation, and a better decorative visual effect is achieved; the outer convex air exhaust section 35 embedded in the shutter and the opening structure 36 of the shutter can be suspended in the opening structure 36 of the shutter or flexibly connected with the opening structure of the shutter without rigid connection, so as to avoid the transmission and amplification of the noise of the air conditioner host.

Example 6

As shown in fig. 14-18, in the main unit fusion body of the air-conditioning air energy water heater fusion body of the embodiment, a compressor cavity is arranged at the rear side of a back plate of a negative pressure cavity of an outer heat exchanger, namely, the compressor cavity is rear, a vertical strip-shaped air outlet 31 of the main unit fusion body is communicated with a lateral air exhaust section 35, a lateral air guide plate sheet set is arranged in the lateral air exhaust section 35, and air guide plates 34 are vertically arranged and provided with angles for guiding air exhaust air flow to deviate from the main unit of the air conditioner, namely, the small angles of the air guide plate sheet set point to the side opposite to the main unit fusion body;

in the equipment platform, a shutter 52 is arranged on the outer vertical surface, and a vertical strip-shaped opening structure capable of freely accommodating a lateral exhaust section of an air conditioner host is reserved on the shutter 52 close to a side wall; when the host fusion is installed, the lateral exhaust section of the host fusion is embedded into a vertical strip-shaped opening structure 36 reserved in the shutter;

when the equipment platform operates, the host fusion positive pressure exhaust cavity discharges air into a lateral exhaust section at a high speed after heat exchange, under the constraint and induction of the flow guide plate sheet group in the lateral exhaust section, the exhaust air flow is seen from the horizontal direction to drift and shoot in the lateral direction, the exhaust air flow is separated from the space right in front of the equipment platform, the exhaust air flow is prevented from flowing back to the local equipment platform, and meanwhile, the exhaust air flow is prevented from being sucked by a lower adjacent equipment platform (winter) or an upper adjacent equipment platform (summer) after being discharged from the local equipment platform. Seen from the vertical direction, the air exhaust air flow of the main machine fusion body of the equipment platforms of a plurality of layers of buildings is emitted laterally at a small angle in the horizontal plane, then is gathered in the vertical direction of the outer space of the rear side of the main machine fusion body, hot air flow moves upwards in summer, cold air flow moves downwards in winter, and is separated from the vertical space of the equipment platforms, and is diffused and diluted away from the equipment platforms.

When the external heat exchanger of the traditional high-rise building, especially the high-rise residential building, in winter (summer) is in ventilation operation to the environment atmosphere, as the external elevation of the equipment platform has the positive pressure high-speed external air exhaust of a small-area air exhaust area and the micro negative pressure low-speed suction of the environment air of a large-area air inlet area, the phenomenon that the external air exhaust is diffused and diluted in the atmosphere and the external elevation of the external air exhaust and reflux after partial dilution is carried out, and the problem of the performance degradation of a host fusion body is caused by the attachment of cold (hot) air of the external elevation of the equipment platform is caused:

in winter, cold air discharged by the external heat exchanger of each layer of equipment platform is diffused and diluted in front of the outer facade of the external heat exchanger and partially flows back, the whole cold air discharged by the existing multi-layer equipment platform moves downwards and converges in a vertical direction, the cold air is connected end to end, beads are in a chain, the more the strings are, the outer facade of the equipment platform is covered, so that the host fusion of the lower layer of equipment platform sucks the cold air discharged by the host fusion of the upper layer of equipment platform, the evaporation temperature is reduced, the circulation quantity of the refrigerant is reduced, and the heating performance of the host fusion is deteriorated;

in summer, hot air discharged by the outer heat exchanger of each layer of equipment platform diffuses and dilutes in front of the outer facade of the outer heat exchanger and partially flows back, the whole hot air discharged by the existing multi-layer equipment platform moves upwards and converges in a vertical direction, the hot air is connected end to end, beads are connected in a chain manner, more strings are formed, the outer facade of the equipment platform is covered, so that the upper layer equipment platform host fusion body sucks the hot air discharged by the lower equipment platform host fusion body, the condensation temperature is raised, the supercooling degree of condensate is reduced, and the refrigerating performance of the host fusion body is deteriorated;

Under the constraint and induction of the flow guide plate sheet group in the lateral exhaust section, the air after heat exchange of the main machine fusion body of each layer of the embodiment is blown to the outer space at the rear side of the compressor cavity at a lateral high speed, and exhaust air flow is separated from the space right in front of the equipment platform, so that the exhaust air flow is prevented from flowing back to the local equipment platform, and the risk that the exhaust air flow is sucked by a lower adjacent equipment platform (winter) or by an upper adjacent equipment platform (summer) after being exhausted from the equipment platform is avoided.

It is to be understood that the above examples of the present utility model are provided by way of illustration only and not by way of limitation of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (19)

1. The main engine fusion of the fan rear-mounted double-air-duct double-refrigerating system is characterized by comprising a shell, 2 groups of refrigerating agent circulating systems arranged in the shell and an exhaust cavity; the refrigerant cycle system includes an external heat exchanger and a compressor; each group of refrigerant circulation systems is provided with an independent outer heat exchanger negative pressure cavity, and the outer heat exchanger negative pressure cavity comprises an outer heat exchanger, a part of shell and a back plate; the back plate is provided with a plurality of air outlets of the negative pressure cavities of the external heat exchangers, the air outlets are provided with fans, the air outlets are communicated with the air exhaust cavities, and the air outlets of the air exhaust cavities are arranged on the same side of the air inlet of the shell; the outer heat exchanger is an air inlet of a negative pressure cavity of the outer heat exchanger.

2. The fan rear-mounted double-air-duct double-refrigerating system host fusion according to claim 1, wherein the external heat exchanger is a horizontal section V-shaped finned tube heat exchanger assembly or a zigzag folding-line finned tube heat exchanger assembly; the horizontal section V-shaped finned tube heat exchanger assembly comprises at least 2 flat plate type finned tube heat exchangers; or the V-shaped finned tube heat exchanger is formed by bending a flat plate type finned tube heat exchanger; or consists of a flat plate type finned tube heat exchanger and a V-shaped finned tube heat exchanger formed by bending the flat plate type finned tube heat exchanger; the cross section of the horizontal section V-shaped finned tube heat exchanger assembly perpendicular to the long sides of the fins is a folded line type.

3. The fan rear-mounted double-air-duct double-refrigerating system host fusion according to claim 2, wherein the zigzag folding-line type finned tube heat exchanger assembly is formed by combining one or two of a plurality of flat plate type finned tube heat exchangers or V-shaped finned tube heat exchangers with a plurality of partition plates; the zigzag folding line type finned tube heat exchanger assembly is zigzag folding line type on a section perpendicular to the long side of the fin.

4. The fan rear-mounted double-air-duct double-refrigerating system host fusion according to claim 3, wherein the cross section of the zigzag folding-line type finned tube heat exchanger assembly perpendicular to the long sides of the fins is of an N type, or the cross section perpendicular to the long sides of the fins is of a W type formed by a V-shaped finned tube heat exchanger, a baffle plate and a flat finned tube heat exchanger; or consists of a V-shaped finned tube heat exchanger, 2 baffles and 2 flat plate type finned tube heat exchangers.

5. The blower fan rear double-air-duct double-refrigerating system host fusion according to claim 1, wherein the 2 negative pressure cavities of the outer heat exchangers are arranged up and down or side by side.

6. The blower fan rear double air duct double refrigeration system main unit fusion according to claim 5, wherein 2 groups of 2 zigzag folding line type finned tube heat exchanger assemblies arranged in the shell are communicated with the air conditioning system compressor.

7. The fan rear double-air-duct double-refrigerating system main unit fusion according to claim 5, wherein 2 groups of 2 zigzag-shaped broken-line type finned tube heat exchanger assemblies are arranged in the shell and are respectively communicated with an air conditioning system compressor and an air energy water heater main unit compressor.

8. The blower fan rear-mounted double-air-duct double-refrigerating system host fusion according to claim 1, wherein the back plate is provided with at least 2 air outlets; and a fan is arranged at each air outlet to form a fan wall.

9. The blower fan rear double-air-duct double-refrigerating system main engine fusion according to claim 8, wherein the blower fan adopts a centrifugal blower fan or an axial flow blower fan.

10. The blower fan rear double-air-duct double-refrigerating system main engine fusion according to claim 9, wherein the centrifugal blower fan is a backward-inclined outer rotor centrifugal blower fan.

11. The fan rear-mounted double-air-duct double-refrigerating system host fusion according to claim 1, wherein the air exhaust cavity is a cavity with a unidirectional air outlet and comprises a vertical air exhaust cavity or consists of a vertical air exhaust cavity and a transverse air exhaust cavity which are mutually communicated; or consists of a vertical exhaust cavity and a lateral exhaust cavity which are communicated with each other; the lateral exhaust cavity is arranged on the outer side of the negative pressure cavity side plate of the outer heat exchanger.

12. The blower fan rear-mounted double-air-duct double-refrigerating system main unit fusion body according to claim 6, wherein an exhaust section is arranged at the air outlet.

13. The fan rear-mounted double-air-duct double-refrigerating system host fusion according to claim 12, wherein a plurality of flow guide plates are arranged in the exhaust section; the air deflector sheet is parallel to or close to the louver sheet parallel to the equipment platform, or the air deflector sheet is vertically arranged and provided with an angle for guiding the exhaust air flow to deviate from the air conditioner host.

14. The fan rear double air duct double refrigeration system main unit fusion according to claim 1, wherein the rear side of the back plate of the exhaust cavity is provided with a compressor cavity for installing a fluorine circuit component comprising an air conditioner compressor, a four-way valve, an expansion valve and an electric box, or,

A compressor cavity for installing a fluorine circuit component comprising an air conditioner compressor, a gas-liquid separator, a four-way valve, an expansion valve and an electric box is arranged on one side outside the negative pressure cavity of the outer heat exchanger of the shell;

the gas-liquid separator, the air conditioner compressor, the four-way valve, the external heat exchanger and the expansion valve are communicated with a refrigerant pipeline of the air conditioner indoor unit to form a refrigerant circulation loop of the air conditioning system.

15. The main unit fusion of a fan rear-mounted double-air-duct double-refrigerating system according to claim 1, wherein the main unit fusion is further provided with an intermediate heat exchanger, and two paths of heat exchange medium channels of the intermediate heat exchanger are respectively a refrigerant channel and an air-conditioning water channel of an air-conditioning main unit; the refrigerant channel is connected with a fluorine path of the air conditioner host; the air conditioner water channel is connected with an air conditioner indoor heat exchanger.

16. An equipment platform, characterized in that the host fusion body according to any one of claims 1-15 is arranged in the outer corridor type equipment platform, and an air outlet of the air exhaust cavity faces to an outer vertical surface of the outer corridor type equipment platform.

17. The equipment platform of claim 16, wherein an exhaust section is provided at the air outlet; the exhaust section is arranged adjacent to the outer vertical face shutter of the outer corridor type equipment platform.

18. The equipment platform of claim 16, wherein an exhaust section is provided at the air outlet; an opening structure matched with an exhaust section is arranged on the outer elevation shutter of the outer corridor type equipment platform; the exhaust section is embedded into the shutter opening structure.

19. The equipment platform of claim 18, wherein the open structure of the louvers is rectangular with long sides parallel to the equipment platform bottom or side.