CN220601645U - Refrigerating equipment with air inlet surfaces and air exhaust surfaces orthogonally arranged double air channels and equipment platform thereof - Google Patents

Abstract

The utility model belongs to the technical field of new energy, and discloses a refrigerating device with an air inlet surface and an air outlet surface which are orthogonally arranged with double air channels. The host device comprises a shell, 2 groups of refrigerant circulating systems arranged in the shell and an exhaust cavity; each refrigerant circulation system is provided with an independent outer heat exchanger negative pressure cavity and an independent exhaust cavity, wherein the outer heat exchanger negative pressure cavity consists of 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 cavity of the external heat exchanger, and the air outlets on the back plate correspond to the air suction inlets of the vertically arranged fans; the air outlet is communicated with the air exhaust cavity; the air outlet of the air exhaust cavity is positioned on the side plate of the shell and is orthogonally arranged with the air inlet surface of the shell. The utility model constructs the outer heat exchanger air path of the low resistance penetrating through the blind window on the outer elevation, constructs the outer heat exchanger assembly structure, and improves the energy density of the body; the number of the equipment is reduced, the space structure relationship is simplified, and the occupied area is reduced.

Description

Refrigerating equipment with air inlet surfaces and air exhaust surfaces orthogonally arranged double air channels and equipment platform thereof

Technical Field

The utility model belongs to the technical field of new energy, and particularly relates to a refrigerating device with an air inlet surface and an air outlet surface which are orthogonally arranged with double air channels 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.

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 shutter of the outer facade, and the classical air conditioning host which enters from the back of the wind path and exits from the front of the wind path is blocked to exhaust the atmosphere outside the building, so that the heat exchange performance is seriously attenuated; 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 household central air-conditioning host and the air energy water heater become standard configurations on the fine room equipment platform; in summary, the classic household central air conditioner host and the air energy water heater 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

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 refrigerating device with two air channels, wherein the air inlet surfaces and the air outlet surfaces are orthogonally arranged;

the dual refrigeration system of the present utility model can be used for air conditioning, or for air energy water heater, or one system is used for air conditioning and the other system is used for air energy water heater.

The utility model further aims to provide an equipment platform for assembling the double-air-duct refrigeration equipment with the air inlet surface and the air outlet surface arranged in an orthogonal mode.

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

a refrigerating device with two air channels arranged in an orthogonal mode on an air inlet surface and an air outlet surface comprises a shell, 2 groups of refrigerant circulating systems arranged in the shell and an air outlet cavity; the refrigerant cycle 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 consists of an 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 cavity of the external heat exchanger, and the air outlets are provided with vertically arranged fans; the outer heat exchanger is an air inlet of a negative pressure cavity of the outer heat exchanger;

an air outlet on the backboard corresponds to an air suction inlet of the vertically arranged fan; the air outlet is communicated with the air exhaust cavity; the air outlet of the air exhaust cavity is positioned on the side plate of the shell and is orthogonal to the air inlet surface 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 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 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 impacts the tip of each fin plate in the horizontal section V-shaped fin tube heat exchanger assembly at an obtuse angle beta, and is reflected by the fin tip plate to enter fin gaps 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 fin tube heat exchanger in the horizontal section V-shaped fin tube heat exchanger assembly 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.

The finned tube copper tubes of the serrated fold line type finned tube heat exchanger assembly are parallel to the serrated 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 finned tube copper tubes are parallel or basically parallel to the upper bottom plate and the lower bottom plate and are 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 finned tube copper tube forms an obtuse angle with the side wall of the negative pressure cavity of the adjacent external heat exchanger.

Further, the negative pressure cavities and the exhaust cavities of the 2 outer heat exchangers are arranged up and down or left and right side by side and are separated by a middle partition plate. 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, an exhaust section is arranged at the exhaust outlet.

Further, a plurality of flow guide plates are arranged in the exhaust section; the deflector plates are arranged parallel or nearly parallel to the shutter plates, or the deflector plates are arranged vertically and are provided with angles for guiding the exhaust air flow to deviate from the host device.

Further, the area of the air outlet of the air exhaust cavity is 15-60% of the area of the air inlet surface of the negative pressure cavity of the outer heat exchanger.

Further, the exhaust cavity is a cavity with a unidirectional air outlet and is composed of a side plate, a top plate, a bottom plate, a back plate of the negative pressure cavity of the external heat exchanger and an exhaust cavity back plate, wherein the side plate, the top plate and the bottom plate of the shell; the air outlet of the air exhaust cavity is a vertical rectangular air outlet.

Further, the exhaust face surrounded by the exhaust opening is arranged on the long side face of the shell, and the air inlet face is arranged on the short side face of the shell or/and the long side face adjacent to the short side face.

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

Further, the outer side of the back plate of the exhaust cavity or the outer side of the negative pressure cavity side plate of the outer heat exchanger is provided with a compressor cavity for placing a fluorine circuit assembly 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 host equipment is arranged in the outer corridor type equipment platform, and an air outlet of the air exhaust cavity faces the outer vertical face of the outer corridor type equipment platform.

Further, an exhaust section is arranged at the exhaust 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 exhaust 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 exhaust outlet; an opening structure matched with an exhaust section positioned in the middle or lower part of the exhaust cavity is arranged on the outer elevation shutter of the outer corridor type equipment platform; the exhaust section at the middle part or the lower part of the exhaust cavity is embedded into the shutter opening structure.

Further, an outer convex exhaust section is arranged at the exhaust outlet; the outer vertical face shutter of the outer corridor type equipment platform is provided with an opening structure matched with an outer convex type exhaust section positioned in the middle or lower part of the exhaust cavity; the outer convex type exhaust section at the middle part or the lower part of the exhaust cavity 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:

(1) external heat exchanger air path for constructing low-resistance penetrating through blind window on outer elevation

The vertical strip-shaped small-area air outlet is arranged on the air exhaust cavity panel of the external heat exchanger, the air outlet is arranged near the transverse midpoint position of the vertical fan wall and is equal to the distance between the air outlet and each fan, and the ventilation section of the air exhaust collected by each fan in the front air exhaust cavity of the air outlet is large, the path is short and the resistance is small; after the air outlet, the air exhaust air flow enters the vertical strip-shaped diving type air exhaust section, under the constraint and induction of a plurality of diving type flow guide plates arranged in the vertical strip-shaped diving type air exhaust section, an air exhaust air flow line and the outer elevation louver window sheet are in parallel or nearly parallel states, and the air exhaust air flow penetrates through the louver window sheet group at low resistance to be exhausted to the outside environment at high speed, so that the long-range diffusion dilution is realized.

According to the utility model, the outer vertical surface of the equipment platform is taken as a reference surface for measurement and calculation, the area of an air outlet of an outer heat exchanger of the host equipment is very small and is obviously smaller than the area (less than 1/3) of an air inlet area of the outer vertical surface, the air inlet area is large, the air inlet speed is low, and the air inlet resistance is close to zero; the exhaust speed is more than 3 times of the average air inlet speed, the exhaust dynamic pressure head on the outer elevation is more than 9 times of the air inlet dynamic pressure head, the exhaust air flow penetrates through the outer elevation shutter to penetrate into the atmosphere, the range is far, and the diffusion dilution effect is good; the utility model constructs the whole-course low-resistance air path of the outer heat exchanger assembly for overcoming the backflow short circuit of the exhaust air flow, the thermal performance of host equipment on the equipment platform is not reduced compared with that of laboratory data, and the task of taking the air conditioner and the air energy water heater as heat conveyers is completed with high quality and high efficiency.

(2) Constructing an outer heat exchanger assembly structure and improving the energy density of the body

In the chain type flow of medium-speed air inlet of air flow of an external heat exchanger, dispersion and deceleration of fin planing cutters, heat exchange on huge fin heat exchange areas on a total huge ventilation surface, collection and acceleration, fan boosting and high-speed discharge of a diving type air exhaust section, the utility model takes a fan as a power source, takes a huge amount of continuously arranged horizontal section V-shaped fin tube heat exchanger assembly fin planing cutters as cores, completes the speed reduction and air distribution of fin gaps, is efficient and smooth, builds an air path structure of efficient heat exchange inside air conditioner and water heater host equipment, and improves the energy density of the external heat exchanger assembly and the host equipment;

according to the vertical arrangement of the fans, the air suction inlet straight-face external heat exchanger reduces the upward turning local resistance of the air flow before the suction inlet of the traditional air-out multi-split air-conditioner fan, combines the step planing of the fin planing tool and the throttling function of the fin gaps, and improves the ventilation and heat exchange uniformity of the external heat exchanger.

The utility model breaks through the non-uniformity problem of vertical ventilation heat exchange of the traditional multi-split external heat exchanger, and the height of the external heat exchanger can break through the traditional design of about 1200mm of the multi-split external heat exchanger, so that the height of the external heat exchanger is increased to more than 2000mm, and the body energy density of the main machine equipment of the air-conditioning water heater is further increased.

(3) Reducing the number of devices, simplifying the spatial structure relationship and reducing the occupied area

The utility model combines the air energy water heater main machine of the air conditioner main machine into a whole, thereby reducing the number of devices on the device platform and the installation engineering quantity; in addition, the installation of the air-conditioning water heater host equipment on the equipment platform is very convenient and quick, and the host is moved and placed to the outer heat exchanger diving type exhaust section which is close to the outer elevation shutter; the air conditioner main unit is close to the shutter without contacting, hard connection or soft connection is not needed between the air exhaust section and the shutter, the difficulty and the engineering quantity of the installation and construction of the air conditioner main unit are reduced, and the amplification and diffusion of vibration noise of the air conditioner main unit in the shutter are also reduced in a hard connection mode.

The utility model combines the air energy water heater host of the air conditioner host into a whole, greatly simplifies the equipment platform and the equipment relationship and the space structure relationship on the outer vertical surface of the equipment platform, comprises the interrelationship of a power circuit, a signal circuit, a refrigerant pipeline, a condensate water waterway and an outer heat exchanger air path of the air energy water heater host of the air conditioner host and the space structure relationship between the air energy water heater host and the equipment platform and the outer vertical surface of the equipment platform, and therefore, the equipment platform is simple and the operation and the maintenance of the equipment are more convenient.

The utility model combines the air energy water heater main machine of the air conditioner main machine into a whole, removes the special air supply and exhaust channel of the external heat exchanger of the air energy water heater, and reduces the occupied area of the equipment platform.

(4) Perfect unification of outer elevation decoration and excellent thermal performance of air conditioner host machine is realized

The air exhaust cavity of the host device is provided with a diving type air outlet which is vertically and centrally arranged on the outer surface of the host device body and centrally arranged on the middle lower part of the outer vertical surface of the device platform; when the host equipment on the equipment platform operates, the outer vertical face shutters corresponding to the two sides and the upper part of the host equipment form an air inlet area, the shutters corresponding to the small-area central vertical strip-shaped air outlet area on the air exhaust cavity panel of the host equipment form an air exhaust area, and the air inlet area and the air exhaust area are mutually separated to block the backflow short circuit of air exhaust.

The air exhaust cavity of the utility model is matched with the shutter window sheet group on the outer vertical surface of the platform of the equipment through the down-rushing type air outlet, and the air exhaust of the external heat exchanger is smooth; the outer elevation of the equipment platform is used as a reference surface for measurement and calculation, the area of an air outlet of the outer heat exchanger is very small and is remarkably smaller than the area (less than 1/3) of an air inlet area of the outer elevation, the air exhaust speed is more than 3 times of the air inlet speed, the air exhaust dynamic pressure head on the outer elevation is more than 9 times of the air inlet dynamic pressure head, the air exhaust flow penetrates through the shutter of the outer elevation to penetrate into the atmosphere, the air range of the environment is far, the diffusion dilution effect is good, the thermal performance of host equipment on the equipment platform is not reduced compared with that of laboratory data, and the task of being used as a heat carrier is completed with high quality and high efficiency.

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 host equipment, 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 host equipment.

Drawings

FIG. 1 is a three-dimensional cross-sectional view of a refrigeration apparatus with a double air duct orthogonal to the air intake and exhaust surfaces of embodiment 1;

FIG. 2 is a top view of a refrigeration apparatus with two air ducts disposed orthogonally to the air intake and exhaust surfaces of embodiment 1;

fig. 3 is a longitudinal vertical sectional view of the cooling apparatus with the double air ducts orthogonally arranged on the air intake surface and the air exhaust surface of embodiment 1;

fig. 4 is a transverse vertical sectional view of the cooling device with the air inlet surface and the air outlet surface of embodiment 1 orthogonally arranged with double air channels;

fig. 5 is a longitudinal vertical cross-sectional view of the air-intake surface and air-exhaust surface of the embodiment 1, in which the air-exhaust operation of the double-duct refrigerating device is orthogonally arranged;

FIG. 6 is a schematic view of a three-dimensional structure of a horizontal cross-section V-shaped 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 diagram showing the distribution of the air intake area and the air exhaust area of the host device of embodiment 1, which adopts the two refrigeration systems with the air intake and the air exhaust orthogonal to each other, on the outer vertical surface of the platform;

FIG. 9 is a schematic diagram of a system with two air channels arranged orthogonally to the air inlet and outlet surfaces of embodiment 1;

FIG. 10 is a top view of a host device employing a double V-fin tube heat exchanger with air inlet and outlet surfaces disposed orthogonally to one another in accordance with example 2;

FIG. 11 is a graph of the operating airflow profile of a host device employing a dual V-fin tube heat exchanger with air inlet and outlet surfaces disposed orthogonally to one another in accordance with example 2;

FIG. 12 is a schematic diagram of two sets of refrigerating systems of a host machine apparatus of an air-conditioning host air-energy water heater for outputting air-conditioning water to an indoor unit by using an intermediate heat exchanger in accordance with embodiment 3;

FIG. 13 is a top plan view of the construction of the main unit of the zigzag-shaped fin tube heat exchanger assembly of embodiment 4;

FIG. 14 is a top plan view of the operating airflow of a host device for a zigzag-type finned tube heat exchanger assembly of example 4;

FIG. 15 is a top view of the structure of the host device with the air inlet disposed on both sides of the V-shaped tip in the embodiment 5, and the air inlet and the air outlet are orthogonal;

FIG. 16 is a top view of the operational airflow of the host device with the air ports of example 5 disposed on both sides of the V-shaped tip portion in which the air inlet airflow and the air outlet airflow are orthogonal;

FIG. 17 is a vertical cross-sectional view of the male air exhaust section of example 6 embedded in the open structure of the platform shutter of the apparatus;

fig. 18 is a top view showing the structure of a side-draft dual refrigeration system host apparatus according to embodiment 7;

FIG. 19 is a top plan view of the operating airflow of a side-draft dual refrigeration system host machine of example 7;

FIG. 20 is a schematic view of building vertical airflow collection and upward movement during summer operation of a device platform mounted side exhaust host device.

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. 1-9, a double-air-duct refrigerating device is arranged in an orthogonal manner on the air inlet surface and the air outlet surface,

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;

one of the dual refrigeration systems of the present embodiment is for an air conditioner and the other is for an air energy water heater.

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 is composed of the outer heat exchanger 2, a part of the casing, and the back plate 21.

The 2 external heat exchanger negative pressure chambers are arranged up and down, i.e. the external heat exchangers are arranged up and down and separated by a middle partition 38.

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 6 negative pressure cavities 22 of the external heat exchangers, and the air outlets 23 are provided with vertically arranged 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 and are separated by a middle partition plate 38.

Each exhaust cavity 3 corresponds to 1 exhaust outlet 31, and the two exhaust cavities are separated by a middle partition plate 38.

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.

An air outlet 23 on the back plate 21 corresponds to an air suction inlet of the vertically arranged fan; the air outlet 23 is communicated with the air exhaust cavity 3; the air outlet 31 of the air exhaust cavity 3 is positioned on the side plate 13 of the shell 1 and is arranged orthogonally to the air inlet surface 12 of the shell 1.

The outer side surface of the back plate of the exhaust cavity is provided with a compressor cavity 4 for placing a fluorine circuit component comprising a compressor 41, a gas-liquid separator, a four-way valve, an expansion valve and an electric box.

The exhaust cavity 3 is a cavity with a one-way exhaust port and is composed of a side plate, a top plate, a bottom plate, a back plate of the negative pressure cavity 22 of the external heat exchanger and an exhaust cavity back plate 46, wherein the side plate, the top plate and the bottom plate of the shell 1; the air outlet 31 of the air exhaust cavity 3 is a vertical rectangular air outlet.

The exhaust face surrounded by the exhaust port 31 is provided on the long side face of the housing 1, and the intake face 12 is provided on the short side face of the housing 1.

The area of the air outlet 31 of the air exhaust cavity is 15-60% of the area of the air inlet surface of the negative pressure cavity 22 of the external heat exchanger.

The air outlet 31 of the host device of this embodiment is connected with the combined vertical strip-shaped diving type air exhaust section 33 which is in accordance with the shutter structure of the outer vertical face of the device platform, and can be in a riveting mode or a flange connection mode.

A diving type exhaust section 33 is arranged at the exhaust 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 blind window 52 of the outer facade.

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 from the small-area 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 louver window sheets are in parallel or nearly parallel states, the interception area of the louver window sheet group to the air exhaust air flow is minimum, the interception resistance is minimum, the air exhaust air flow passes through the louver window sheet group of the outer vertical surface of the equipment platform and is discharged to the outside environment at a high speed, and the long-range diffusion dilution is performed.

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. 7, 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.

The embodiment creatively reconstructs an outer heat exchanger structure, an outer heat exchanger air path structure and an air conditioner host structure of a household air conditioner host by arranging the double air duct refrigeration equipment with the air inlet surface and the air outlet surface in an orthogonal mode, 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 main machine, the technical characteristics of the double-refrigerating-system main machine fusion body with the air inlet surface and the air outlet surface in the embodiment are that:

two V-shaped fin tube external heat exchanger assemblies with oversized heat exchange areas respectively serving 2 refrigeration system hosts are adopted; each fin tube outer heat exchanger assembly consists of at least 2 flat plate type fin 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 section of the fin tube outer heat exchanger assembly perpendicular to the long sides of the fins is a folded line type;

In the embodiment, 1 horizontal V-shaped finned tube heat exchanger assembly is respectively arranged up and down in the limited space of a host fusion body of the double refrigeration systems in parallel to the direction of an air inlet surface of an air inlet of the host fusion body, the upper outer heat exchanger assembly is connected with one refrigeration system, and the lower outer heat exchanger assembly is connected with the other refrigeration system;

in the embodiment, each outer heat exchanger assembly is unfolded along the air inlet surface of the horizontal V-shaped finned tube heat exchanger to obtain a large-area ventilating surface of the outer heat exchanger assembly, and the large-area ventilating surface of the outer heat exchanger assembly is unfolded again to obtain a large-area fin heat transfer surface, so that the total fin heat exchange area of the outer heat exchanger assembly of the main unit of the air conditioner double-refrigerating system is effectively enlarged, the heat transfer temperature difference of the outer heat exchanger body is reduced, the evaporating pressure is increased, the condensing pressure is reduced, and the refrigerating capacity and the energy efficiency ratio of the refrigerating system are improved.

In the embodiment, a main unit fusion body of a double-air-channel double-refrigerating system is arranged on an air inlet surface and an air outlet surface in an orthogonal manner, an upper external heat exchanger negative pressure cavity and a lower external heat exchanger negative pressure cavity are arranged, each negative pressure cavity is formed by combining a bottom plate, a side plate, a back plate, a fin tube external heat exchanger assembly and a top plate, wherein the bottom plate of the upper negative pressure cavity and the top plate of the lower negative pressure cavity are combined into a whole, and the same horizontal partition plate is shared;

In the embodiment, each negative pressure cavity backboard is arranged in a V-shaped outer heat exchanger assembly in a relative transverse direction; an exhaust outlet of the negative pressure cavity of the external heat exchanger is arranged on the vertical back plate, and the exhaust outlet is provided with a backward inclined external rotor centrifugal fan; the impeller rotating surface of the vertical backward inclined outer rotor centrifugal fan is positioned in the vertical surface, and the air suction inlet faces the outer heat exchanger assembly; the V-shaped finned tube heat exchanger which is transversely arranged is an air inlet of a negative pressure cavity of the outer heat exchanger;

an exhaust cavity of the centrifugal fan is arranged outside a vertical back plate of the negative pressure cavity of the external heat exchanger, and an exhaust outlet of the exhaust cavity is arranged on a lateral panel orthogonal to an air inlet of the main machine fusion body and is a vertical strip-shaped exhaust outlet; two exhaust cavity air outlets of the two refrigeration systems are adjacently combined to form a unified vertical strip-shaped air outlet, and then the vertical strip-shaped diving type air exhaust section is connected.

The vertical strip-shaped diving type exhaust section comprises an upper independent diving type exhaust section and a lower independent diving type exhaust section which are respectively communicated with two exhaust cavities of the refrigerating system; a plurality of guide plates which are parallel to each other are arranged in each diving type independent exhaust section, the inclination angle of each guide plate is the same as or similar to that of the outer elevation shutter window sheet, and the guide plates are matched with the outer elevation shutter structure of the equipment platform so as to reduce the interception area and interception resistance of the shutter window sheet to exhaust air flow.

The compressor cavity is arranged on the outer side of the exhaust cavity of the external heat exchanger assembly and is used for accommodating two sets of circuit components such as a refrigerating system compressor, a four-way valve, an expansion valve and the like and an electric box and the like.

The main engine fusion body of the double-air-channel double-refrigerating system with the orthogonal air inlet surface and the air outlet surface is essentially characterized in that the air inlet surface, the outer heat exchanger assembly, the negative pressure cavity, the fan wall, the air outlet cavity and the compressor cavity are arranged in a linear progressive manner, the air inlet surface of the main engine is perpendicular to a linear progressive line, and the air outlet surface of the air outlet cavity of the main engine is parallel to the linear line and orthogonal to the air inlet surface of the main engine.

The embodiment is provided with progressive layout of an air inlet of an outer heat exchanger, an outer heat exchanger assembly, a fan wall, an exhaust cavity and an exhaust outlet of the exhaust cavity of the air conditioner host and a water heater host 2-group refrigerant circulation system, so that 2 independent outer 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 (i.e. the bottom plate of the housing 1), 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 exhaust 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.

In this embodiment, on the side surfaces of the air inlet 11, the external heat exchanger 2, the fan wall, the air exhaust cavity 3 and the air exhaust port 31, the compressor cavity 4 is arranged, and 2 groups of circuit components such as a compressor 41, a four-way valve, an expansion valve and the like of the refrigerant circulation system arranged in the casing are arranged.

(2) Innovative design of inlet and outlet wind field of external heat exchanger of host equipment

In this embodiment, the air inlet surface and the air outlet surface are orthogonally provided with the double-air-channel refrigeration device, and the air inlet 11, the negative pressure cavity 22 of the external heat exchanger, the air outlet cavity 3 and the air outlet 31 of the air outlet cavity.

When each external heat exchanger in the embodiment performs ventilation heat exchange, the heat exchange air flow is subjected to two static pressure-dynamic pressure conversions from the air inlet 11 to the air outlet 31 by taking the centrifugal fan as power, the first static pressure-dynamic pressure conversion realizes the high-speed air suction of the air inlet of the centrifugal fan, and the second static pressure-dynamic pressure conversion realizes the high-speed air discharge of 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: 6 centrifugal fans on the fan wall pump out the air in the negative pressure cavity of the external heat exchanger to generate negative pressure in the cavity, and the ambient air under the static pressure (gauge pressure) of an air outlet of 0Pa is pulled to enter the main machine equipment from the air inlet at a medium speed (about 4 m/s), the air inlet airflow is divided and decelerated by the multi-fin planing tool to plane the main body air inlet airflow in a ladder manner, the low speed (below 2 m/s) flows through the fin gaps of the external heat exchanger to complete heat exchange, then enters the negative pressure cavity of the external heat exchanger, is collected and accelerated, and flows into the centrifugal fan air inlet with the lowest full path pressure (the gauge pressure is a negative value) at a high speed, so that the first air static pressure-dynamic pressure conversion is completed; 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 for diffusion dilution from a rectangular small-area air outlet on the outer surface of the air exhaust cavity at high speed (about 8 m/s) under the positive pressure of the air exhaust cavity; 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 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 side surfaces of the outer heat exchanger negative pressure chamber 22 and the exhaust chamber 3.

The host equipment of this embodiment, 2 segmentation finned tube heat exchanger assemblies, 2 segmentation outer heat exchanger negative pressure chamber 2, 2 segmentation fan walls, 2 segmentation exhaust chamber 3 and 2 segmentation air exit 31,2 segmentation dive section of airing exhaust 33, all separate with intermediate baffle 38, link up respectively and form independent air path, 2 the outer facade shutter window piece clearance of equipment platform is directly pointed to 2 section of air exit of airing exhaust, and the construction route is short, the resistance is low, the amount of wind is big, the outer heat exchanger assembly air current path structure of heat exchange intensity height, serves air conditioner host computer outer heat exchanger assembly and the outer heat exchanger assembly of air energy water heater respectively.

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 host device of the embodiment drives the refrigerant to circulate in a closed cycle by taking the compressor 41 as power 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-conditioning water heater host fusion body 2 external heat exchanger assemblies and the fin gap air flow.

The embodiment also remodels the structure of the air inlet and outlet area on the outer vertical surface of the equipment platform.

According to the embodiment, the outer vertical face of the equipment platform is taken as a reference plane for measurement and calculation, the area of an exhaust area corresponding to the vertical strip-shaped push-down type exhaust outlet of the external heat exchanger integrated with the host machine of the double refrigeration system is very small and is remarkably smaller than the area of an air inlet area of the outer vertical face, and the air inlet area is less than 1/3; the air inlet area on the side surface and the upper part of the main machine fusion body is obviously larger than the area of the air outlet, and the main machine fusion body has the characteristics of large air inlet area, low air inlet speed and air inlet resistance close to zero; the exhaust speed reaches more than 3 times of the average air inlet speed, the exhaust dynamic pressure head on the outer vertical face reaches more than 9 times of the air inlet dynamic pressure head, and the exhaust air flow penetrates through the shutter of the outer vertical face to penetrate into the atmosphere, so that the diffusion dilution effect is good.

According to the embodiment, the air inlet surface and the air exhaust surface are orthogonally provided with the double-air-channel double-refrigerating system host fusion, and when an air inlet, heat exchange and air exhaust full-path structure innovation and a full-flow operation mode innovation are implemented on the outer heat exchanger assembly, the refrigerant pipeline side uses a compressor as power to drive the refrigerant to perform closed circulation and high-efficiency phase change heat exchange in the circulation process, so that energy coupling of an air channel and a fluorine channel is realized.

In the embodiment, a compressor cavity is arranged at the outer side of an exhaust cavity of an external heat exchanger assembly of a double-refrigerating-system main unit fusion body, and circuit components such as compressors, four-way valves, expansion valves, gas-liquid separators and the like of two sets of refrigerating circuits and power cable signal wire electric boxes are arranged; the components of the refrigeration loop, the external heat exchanger, the refrigerant connecting pipe, the indoor unit heat exchanger and the like form a refrigeration loop according to the sequence of a compressor, a four-way valve, a condenser, an expansion valve, an evaporator, a four-way valve, a gas-liquid separator and a compressor;

the compressor of the embodiment is used as refrigeration cycle loop power, high-low pressure states of refrigerant are respectively established in the evaporator pipeline of the condenser, the refrigerant is driven to circularly flow and repeatedly change phase in the refrigeration cycle loop to realize heat transfer, namely, the air conditioning refrigeration system absorbs heat of low-temperature ambient air flowing through gaps of fins through evaporation and heat absorption of refrigerant liquid in the inner pipeline of the evaporator and absorption of heat absorption areas of the giant fins connected with the copper pipes in an ascending mode, and releases heat of 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 release of heat of the high-temperature ambient air flowing between the fins through heat release areas of the giant fins connected with the copper pipes in an ascending mode, so that heat transfer from the low-temperature environment of the air conditioning evaporator to the high-temperature environment of the condenser is realized.

The host device of this embodiment may operate independently of each other, that is, 2 sets of refrigerant circulation systems may operate synchronously or asynchronously.

Example 2

10-11, the basic principle of this embodiment is the same as that of embodiment 1, and 2 negative pressure chambers of the external heat exchanger are provided, each negative pressure chamber is formed by combining a bottom plate, a side plate, a back plate, a fin tube external heat exchanger and a top plate; the back plate is arranged opposite to the transverse V-shaped outer heat exchanger assembly, an exhaust outlet of a negative pressure cavity of the outer heat exchanger is arranged on the back plate, and a backward inclined outer rotor centrifugal fan is arranged at the exhaust outlet; the suction inlet of the centrifugal fan faces to the outer heat exchanger assembly; the V-shaped finned tube heat exchanger is transversely arranged and is an air inlet of the negative pressure cavity; and an exhaust cavity of the outer heat exchanger assembly backward-inclined outer rotor centrifugal fan is arranged on the outer side of the negative pressure cavity backboard.

The air outlet of the air exhaust cavity is arranged on the panel of the outer heat exchanger assembly of the air conditioner host and is a vertical strip-shaped air outlet; the air outlet of the air exhaust cavity is in butt joint with a diving type air exhaust section, and a plurality of diving type plates are arranged in the diving type air exhaust section to restrict and induce the air flow rays of air exhaust to be parallel or nearly parallel to the shutter window sheets; the outer side of the exhaust cavity of the outer heat exchanger assembly is provided with a compressor cavity, and fluorine circuit components such as an electric box of a four-way valve expansion valve of an air conditioner main machine compressor are arranged.

The embodiment is different in that the transverse double-V-shaped fin tube outer heat exchanger assembly is combined with a transverse single backward inclined outer rotor centrifugal fan, and the fin area of the outer heat exchanger is larger.

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.

When the host equipment of the embodiment operates, the fan drives the entering, heat exchange and discharging of the ambient air: the negative pressure in the outer heat exchanger assembly cavity pulls air outside the outer heat exchanger to enter the main engine at medium speed, the main air inlet flow is shaved by a plurality of fin shaving cutters to realize the dispersion and deceleration of the air inlet flow, the air flows at low speed through the fin gaps of the outer heat exchanger assembly with large total ventilation section and huge total fin area, and then the air flows into the fan air inlet with the lowest pressure in a converging and accelerating way, and finally the air flows into the air exhaust cavity by being boosted by the fan; the air exhaust flow entering the diving type air exhaust section from the rectangular air outlet of the air exhaust cavity of the outer heat exchanger assembly passes through the metal net or the grille on the outer vertical surface of the equipment platform to be exhausted to the external environment atmosphere at high speed, and the air is diluted by long-range diffusion.

The fan wall of the embodiment is simpler, the area of the fins of the outer heat exchanger assembly is enlarged, the distance between the fan wall and the outer heat exchanger assembly is properly pulled, the simplified fan wall can still ensure the ventilation uniformity of the outer heat exchanger assembly, and the fan wall is suitable for a double-system household central air conditioning system.

Example 3

As shown in fig. 12, the air conditioner main unit of this embodiment is the same as that of embodiments 1 to 3,

the embodiment is different in that an intermediate heat exchanger 6 is arranged in a compressor cavity 4 of an air conditioner host, and two paths of heat exchange medium channels of the intermediate heat exchanger 5 are respectively a refrigerant channel and an air conditioner water channel;

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 air conditioner main unit of the embodiment produces cold water (hot water) through the intermediate heat exchanger 6 and transmits the cold water (hot water) to the air conditioner indoor unit for cooling and dehumidifying (heating) the indoor air; the intermediate heat exchanger 6 may be a plate heat exchanger, a shell and tube heat exchanger, a double tube heat exchanger or a combination thereof.

The present embodiment has all the advantages of embodiments 1-3, and the air conditioner host increases the output of air-conditioning water from the intermediate heat exchanger 6 to the indoor units in the building to block the refrigerant on the corridor type equipment platform, thereby avoiding the risk of leakage and accumulation of the refrigerant in the building, and creating conditions for the air conditioner host to adopt the environment-friendly refrigerant with zero global warming effect and zero ozone layer destruction effect, such as R290, but with combustibility.

Example 4

As shown in fig. 13 to 14, this embodiment has the same principle and structure as embodiment 1, and is different in that:

the dual refrigeration system of the present embodiment is used for an air conditioner.

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, the two flat plate type finned tube heat exchangers 37 form a V-shaped finned tube heat exchanger 40, and the two flat plate type finned tube heat exchanger end plates can be connected to form a V-shaped finned tube heat exchanger, or a plurality of single-row tube flat plate type finned tube heat exchangers are bent into a V shape and then assembled to form 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, an exhaust cavity of the finned tube heat exchanger is arranged between the partition plate 39 and the finned tube heat exchanger, and the exhaust cavity is communicated with the negative pressure cavity of the external heat exchanger.

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

The finned tube copper tubes of the serrated fold line type finned tube heat exchanger assembly are parallel to the serrated 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 finned tube copper tubes are parallel or basically parallel to the upper bottom plate and the lower bottom plate and are 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 copper pipe of the fin tube and the side wall of the negative pressure cavity of the adjacent external 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 5

15-16, the principle and structure of the embodiment are the same as those of embodiment 1/2, and two independent air channels and two sets of refrigerating systems are arranged on the air conditioner main machine and the air energy water heater main machine, and the finned tube heat exchanger assembly, the negative pressure cavity of the external heat exchanger, the fan wall and the exhaust cavity of each refrigerating system are arranged in a progressive manner.

The embodiment is different in that the air inlet end face perpendicular to the linear type line is closed, and the air inlet is opened at two sides of the tip of the V-shaped finned tube.

When the air conditioner host or the air energy water heater host operates, the fan drives ambient air to enter, exchange heat and discharge along a set path:

The negative pressure in the cavity of the negative pressure cavity of the external heat exchanger pulls air outside the external heat exchanger to enter the main machine equipment from air inlets at two sides of the tip of the V-shaped finned tube at medium speed, the main body air inlet flow is planed in a ladder manner by a plurality of fin planing tools to realize the dispersion and deceleration of the air inlet flow, the air flows at low speed through the fin gaps of the external heat exchanger assembly with large total ventilation section and huge fin total area, and then is collected and accelerated to flow into a fan air inlet with the lowest pressure, and finally is boosted by a fan and sent into an exhaust cavity; the air is discharged from the air exhaust cavity of the outer heat exchanger assembly to the outside environment air at high speed through the small-area rectangular air outlet, and is diluted in a long-range diffusion way.

The air inlets of the embodiment are arranged on two sides of the tip of the V-shaped finned tube heat exchanger assembly, the end faces of the tip of the heat exchanger assembly are closed, so that an air conditioner host can be arranged close to a gable (a longitudinal partition wall perpendicular to an outer vertical surface) on an equipment platform, and the air conditioner host is suitable for a double-system household central air conditioner system or a household central air conditioner heating central water heating system.

Example 6

As shown in fig. 17, a host device platform is provided in which host devices are disposed in a corridor type device platform, and an exhaust port 31 of an exhaust chamber 3 faces an outer elevation of the corridor type device platform 5.

The air conditioner main unit of this embodiment is similar to embodiment 1, and the air conditioner main unit of this embodiment is different from embodiment 4 in that,

The exhaust outlet 31 is provided with a vertical strip rectangular outer convex exhaust section 35 which is matched with the shape of the exhaust 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 matched with the 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 7

As shown in fig. 18-20, in the main unit device of this embodiment, the compressor chamber is disposed outside the negative pressure chamber of the external heat exchanger, that is, the compressor chamber is laterally disposed, the vertical strip-shaped air outlet 31 is communicated with the lateral external convex air exhaust section 35, the lateral external convex air exhaust section 35 is internally provided with a lateral air guide plate sheet set, the air guide plate sheet 34 is vertically disposed and is provided with an angle for guiding the air exhaust air flow to deviate from the air conditioner main unit, that is, the air guide plate sheet set is directed at one end facing away from the air inlet of the main unit device with a small angle;

the equipment platform of the embodiment is provided with a shutter 52 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 the side wall; when the host equipment is installed, the lateral exhaust section of the host equipment is embedded into a vertical strip-shaped opening structure 36 reserved in the shutter;

when the equipment platform operates, the positive pressure exhaust cavity of the host equipment discharges air into the lateral exhaust section at a high speed after heat exchange, the exhaust air flow is seen from the horizontal direction to drift laterally under the constraint and induction of the flow guide plate group in the lateral exhaust section, 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 host machine equipment of the equipment platforms of a plurality of layers of the building is emitted laterally at a small angle in the horizontal plane, then is gathered in the vertical direction of the outer space at the rear side of the compressor cavity, 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 host equipment is caused by the attachment of cold (hot) air of the external elevation of the equipment platform is solved:

in winter, cold air discharged by the external heat exchanger of each layer of equipment platform diffuses and dilutes 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 equipment of the lower layer of equipment platform sucks the cold air discharged by the host equipment 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 equipment is deteriorated;

in summer, hot air discharged by the external heat exchanger of each layer of equipment platform diffuses and dilutes in front of the outer facade of the external 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, the more the strings are, the outer facade of the equipment platform is covered, so that the host equipment of the upper layer of equipment platform sucks the hot air discharged by the host equipment of the lower layer of equipment platform, the condensation temperature is raised, the supercooling degree of condensate is reduced, and the refrigerating performance of the host equipment is deteriorated;

In this embodiment, under the constraint and induction of the flow guide plate group in the lateral exhaust section, the air after heat exchange of the host equipment in each layer is blown to the outer space at the rear side of the compressor cavity at a high speed in a lateral direction, and the exhaust air flow is separated from the space right in front of the equipment platform, so that the exhaust air flow is stopped from flowing back to the local equipment platform, and the risk that the exhaust air flow is sucked by the lower adjacent equipment platform (winter) or by the upper adjacent equipment platform (summer) after being discharged from the local equipment platform is stopped.

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 (18)

1. The refrigerating equipment with the air inlet surface and the air outlet surface arranged in an orthogonal manner is characterized by comprising a shell, 2 groups of refrigerant circulating systems arranged in the shell and an air outlet cavity; the refrigerant cycle system includes an external heat exchanger and a compressor; each group of refrigerant circulation system is provided with an independent outer heat exchanger negative pressure cavity and an exhaust cavity, wherein the outer heat exchanger negative pressure cavity consists of 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 cavity of the external heat exchanger, and the air outlets are provided with vertically arranged fans; the outer heat exchanger is an air inlet of a negative pressure cavity of the outer heat exchanger;

An air outlet on the backboard corresponds to an air suction inlet of the vertically arranged fan; the air outlet is communicated with the air exhaust cavity; the air outlet of the air exhaust cavity is positioned on the side plate of the shell and is orthogonal to the air inlet surface of the shell.

2. The double-air-duct refrigeration equipment with the air inlet face and the air outlet face arranged in an orthogonal mode according to claim 1, wherein the outer heat exchanger is a horizontal-section V-shaped finned tube heat exchanger assembly or a zigzag folding-line type finned tube heat exchanger assembly; at least 2 flat plate type finned tube heat exchangers of the horizontal section V-shaped finned tube heat exchanger assembly; 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 double-air-duct refrigerating device with the orthogonal air inlet surface and the air outlet surface according to claim 2, wherein 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.

4. The apparatus according to claim 1, wherein the negative pressure chambers and the exhaust chambers of the 2 external heat exchangers are disposed vertically or side by side and are separated by a middle partition.

5. The dual-air-duct refrigeration apparatus of claim 1, wherein said back plate is provided with at least 2 air outlets; and a fan is arranged at each air outlet to form a fan wall.

6. The apparatus according to claim 5, wherein the fan is a centrifugal fan or an axial fan.

7. The apparatus of claim 6 wherein said centrifugal fan is a retroverted external rotor centrifugal fan.

8. The refrigeration equipment with double air channels arranged in an orthogonal mode on the air inlet surface and the air outlet surface of the air outlet cavity is 15-60% of the air inlet surface area of the negative pressure cavity of the external heat exchanger.

9. The refrigeration equipment with double air channels arranged in an orthogonal mode on an air inlet surface and an air outlet surface according to claim 1, wherein the air outlet cavity is a cavity with a one-way air outlet and is composed of a side plate, a top plate and a bottom plate of a shell, a back plate of a negative pressure cavity of an external heat exchanger and an air outlet cavity back plate; the air outlet of the air exhaust cavity is a vertical rectangular air outlet.

10. The dual-air-duct refrigerating device according to claim 1, wherein the air-intake surface and the air-exhaust surface surrounded by the air-exhaust opening are arranged on the long-side surface of the shell, and the air-intake surface is arranged on the short-side surface of the shell or/and the long-side surface adjacent to the short-side surface.

11. The apparatus of claim 1, wherein the exhaust port is provided with an exhaust section.

12. The double-air-duct refrigerating device with the air inlet face and the air outlet face arranged in an orthogonal mode according to claim 11, wherein a plurality of air guide plate air outlets are arranged in the air outlet section; the deflector plates are arranged parallel or nearly parallel to the shutter plates, or the deflector plates are arranged vertically and are provided with angles for guiding the exhaust air flow to deviate from the host device.

13. The apparatus according to claim 1, wherein the outer side of the back plate of the air exhaust chamber or the outer side of the negative pressure chamber side plate of the outer heat exchanger is provided with a compressor chamber for placing a fluorine circuit assembly including a compressor, a gas-liquid separator, a four-way valve, an expansion valve and an electric box.

14. The double-air-duct refrigerating device with the orthogonal air inlet face and the air outlet face according to claim 12, wherein the host device is further provided with an intermediate heat exchanger, and two heat exchange medium channels of the intermediate heat exchanger are respectively a refrigerant channel and an air-conditioning water channel of an air-conditioning host machine; 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.

15. A host device platform, wherein the host device of any one of claims 1 to 14 is disposed in a gallery type device platform, and an air outlet of the air exhaust chamber faces an outer vertical surface of the gallery type device platform.

16. The host device platform of claim 15, wherein the exhaust port is provided with an exhaust section; the exhaust section is arranged adjacent to the outer vertical face shutter of the outer corridor type equipment platform.

17. The host device platform of claim 15, wherein the exhaust port is provided with an exhaust section; an opening structure matched with an exhaust section positioned in the middle or lower part of the exhaust cavity is arranged on the outer elevation shutter of the outer corridor type equipment platform; the exhaust section at the middle part or the lower part of the exhaust cavity is embedded into the shutter opening structure.

18. The host device platform of claim 15, wherein the shutter has a rectangular open configuration with a long side parallel to a bottom or side of the device platform.