Combined commercial air conditioner host and equipment platform

Abstract

The utility model belongs to the technical field of green energy conservation, and particularly relates to a combined commercial air conditioner host and equipment platform. The combined commercial air conditioner host is formed by assembling modules. Each module comprises a compressor cavity provided with a compressor, an outer heat exchanger assembly cavity provided with an outer heat exchanger assembly and a vertical exhaust cavity, and a longitudinal exhaust cavity communicated with the vertical exhaust cavity. The longitudinal exhaust cavity body is arranged below or above the outer heat exchanger assembly cavity and is fixedly connected with a bottom plate or a top plate of the vertical exhaust cavity; the compressor cavity is arranged on the side edge of the longitudinal exhaust cavity and communicates with a fluorine path and a circuit of the outer heat exchanger assembly cavity. And the air outlet of the longitudinal air exhaust cavity body and the air inlet of the external heat exchanger assembly face the same direction. According to the utility model, the problem of vertical transportation of the high-power commercial air conditioner main unit on an engineering site is solved, necessary operation space is provided for the activities of mounting, overhauling, maintaining, dismounting and the like of the air conditioner main unit, and perfect combination of technical inheritance and innovation is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to green energy -saving technical field especially relates to a combined commercial air conditioning host computer and equipment platform. BACKGROUND

[0002] At present, the application scene of commercial air conditioning host computer has changed fundamentally, and the host computer site is replaced from an open outdoor platform without space constraints to a semi-closed equipment platform under the condition of building distributed energy system; the air inlet and outlet field of the air conditioning host computer is changed from a classic three-dimensional open space in the form of a hemisphere to a single-sided open semi-closed porch with a roof on top, a bottom on the bottom, a wall on the back and a louver on the front.

[0003] To adapt to this change in application scene, the air conditioning industry has carried out continuous technological innovation. For example, a vertical arrangement of fan air conditioning host computer and its equipment platform (application number 202310972409.9) of Guangzhou Wan'er Two Mai Engineering Technology Co., Ltd. starts from expanding the total area of the air conditioning host computer external heat exchanger ventilation section, the total area of the fin, reducing the heat transfer temperature difference of the external heat exchanger body, and constructing a low-resistance external heat exchanger wind path through the external facade decoration mechanism of the equipment platform in the above-mentioned semi-closed building porch (i.e. embedded equipment platform) scene, innovates the design of the air conditioning host computer to realize the wind path coupling and energy coupling of the air conditioning host computer and the building facade decoration structure, and lays the technical foundation for "coupled air conditioning":

[0004] As shown in Figure 1 The patent sets at least one external heat exchanger negative pressure cavity, which is composed of a bottom plate, a side plate, a back plate, a finned tube heat exchanger and a top plate; the back plate is provided with a V-shaped external heat exchanger assembly in a relative horizontal continuous manner, and the back plate is provided with an external heat exchanger negative pressure cavity exhaust port, and the exhaust port is provided with a fan, including an axial flow fan and a centrifugal fan; the preferred rear inclined centrifugal fan has an air inlet towards the external heat exchanger assembly; the horizontally continuous V-shaped finned tube heat exchanger is the air inlet of the negative pressure cavity; an exhaust cavity is arranged below the bottom plate (or above the top plate) of the negative pressure cavity, and the exhaust port of the exhaust cavity is arranged on the same side as the total air inlet port of the air conditioning host computer, and the exhaust inlet of the exhaust cavity is connected to the exhaust outlet of the V-shaped external heat exchanger fan; a compressor cavity is arranged on the back side of the exhaust cavity, and the compressor four-way valve, expansion valve, electrical box and other fluorine circuit components of the air conditioning host computer are arranged in the compressor cavity.

[0005] As shown in Figure 2As shown, the patent establishes the air inlet and outlet field of the V-shaped external heat exchanger assembly of the air conditioner host by the operation of the centrifugal fan: the vertically arranged centrifugal fan draws and discharges the air in the negative pressure cavity of the continuously arranged V-shaped external heat exchanger to generate negative pressure in the cavity, pulls the ambient air to enter the host from the air inlet at a medium speed, disperses and slows down the air flow by a plurality of fin planers, flows through the gap between the fins of the V-shaped external heat exchanger at a low speed to complete heat exchange, then enters the negative pressure cavity, and then flows into the centrifugal fan suction port at the lowest pressure, and finally is pressurized by the fan and discharged at a high speed to the outside through the exhaust cavity.

[0006] The technical advantage of the patent is not only to build a high-efficiency heat exchange air path structure of the external heat exchanger assembly of the air conditioner host to improve the energy density of the air conditioner host, but more importantly, to create conditions for building a low-resistance air path structure with the same side inlet and outlet for the equipment platform facade: the air inlet and outlet of the air conditioner host are arranged in the same direction, on the same side, and vertically, adjacent to the equipment platform facade, and cooperate with the facade to build an air path structure with the same side inlet and outlet of the air conditioner host, effectively improving the speed and kinetic energy of the exhaust air of the external heat exchanger of the air conditioner host, and effectively improving the range and diffusion dilution effect of the exhaust jet of the air conditioner host penetrating the equipment platform facade and entering the ambient atmosphere.

[0007] However, when applying the patent technology, there are the following important scene and process actual technical problems:

[0008] For example, it is necessary to solve the problem of whether the air conditioner host can be vertically transported by the elevator. The patent does not define the structural relationship between the main components inside the air conditioner host, such as the compressor cavity, the external heat exchanger assembly, the vertical exhaust cavity, and the longitudinal exhaust cavity, and the length, width and height size relationship of the whole machine, and does not solve the problem of whether the air conditioner host can be vertically transported by the elevator; using the elevator for vertical transportation to deliver the commercial air conditioner host to the air conditioner site on the equipment platform, and to remove the old machine and transport it out when the equipment is updated, and then to transport the new machine, using the elevator is a must; the size of the ordinary elevator car is usually 2000 long x 1750 deep x 2555 high, and the size of the elevator door is usually 1100 wide x 2100 high, while the commercial air conditioner host is usually of high power, which may exceed the size of the elevator door and the internal space;

[0009] For example, it is necessary to solve the problem of the operation space required for machine maintenance. Because commercial buildings are usually located in superior geographical locations and every inch of land is valuable, resulting in a relatively crowded equipment platform; the patent does not solve the problem of the appropriate operation space required for the necessary cleaning, maintenance and repair of the air conditioner host on the equipment platform, even for on-site detection and repair in case of systemic failure. SUMMARY

[0010] To solve the above-mentioned problems of the prior art, the utility model provides a combined commercial air conditioner host.

[0011] Another purpose of the utility model lies in providing a device platform provided with the combined commercial air conditioner main machine.

[0012] To solve the above technical problems, the technical scheme of the utility model is as follows:

[0013] A combined commercial air conditioner main machine is composed of modules, the module includes a compressor cavity provided with a compressor, an outer heat exchanger assembly cavity provided with an outer heat exchanger assembly and a vertical exhaust cavity, and a longitudinal exhaust cavity cavity communicated with the vertical exhaust cavity; the longitudinal exhaust cavity cavity is arranged below or above the outer heat exchanger assembly cavity and is fixedly connected with the bottom plate or the top plate of the vertical exhaust cavity; the compressor cavity is arranged at the side of the outer heat exchanger assembly cavity and the longitudinal exhaust cavity cavity and is communicated with the outer heat exchanger assembly cavity through a fluid circuit and an electric circuit; the air outlet of the longitudinal exhaust cavity cavity and the air inlet of the outer heat exchanger assembly are oriented in the same direction.

[0014] Further, the horizontal interface size of the longitudinal exhaust cavity cavity is greater than or equal to the horizontal cross section size of the outer heat exchanger assembly cavity.

[0015] Further, the back plate of the outer heat exchanger assembly cavity is arranged flush with the back plate of the longitudinal exhaust cavity cavity; the compressor cavity is arranged at the back plate of the outer heat exchanger assembly cavity and the longitudinal exhaust cavity cavity.

[0016] Further, the bottom of the longitudinal exhaust cavity cavity and the compressor cavity is provided with a base.

[0017] Further, the outer heat exchanger assembly is a finned tube heat exchanger structure composed of at least two flat plate finned tube heat exchangers.

[0018] Further, the size of the module meets the size of entering the ordinary elevator car and the car door.

[0019] A device platform provided with the combined commercial air conditioner main machine, the air outlet of the longitudinal exhaust cavity cavity is aligned with the low-position air outlet or the high-position air outlet reserved in the building facade, and the air inlet of the outer heat exchanger assembly cavity is aligned with the permeable decoration mechanism in the middle upper part or the middle lower part of the building device platform facade.

[0020] The upper surface of the longitudinal exhaust cavity cavity, which is aligned with the low-position air outlet reserved in the building facade, constitutes a maintenance platform.

[0021] Further, at least one row of the combined commercial air conditioner main machines is arranged in the device platform in the transverse direction.

[0022] A kind of installation method of the combined commercial air conditioner main machine in equipment platform setting, comprising the following steps: using ordinary elevator to transport each module, including compressor cavity, longitudinal exhaust cavity cavity, outer heat exchanger assembly cavity, to the floor where equipment platform is located, then to equipment platform site again;

[0023] In equipment platform site, longitudinal exhaust cavity cavity, outer heat exchanger assembly cavity, compressor cavity cavity are assembled;The exhaust port of longitudinal exhaust cavity cavity is aligned with low-position exhaust port or high-position exhaust port reserved in outer facade, and the air inlet of outer heat exchanger assembly cavity is aligned with the permeable decoration mechanism in the upper or lower part of equipment platform outer facade;

[0024] The vertical exhaust cavity in outer heat exchanger assembly cavity is communicated with longitudinal exhaust cavity, to complete the built-in air conditioner main machine outer heat exchanger air path and complete the through connection of equipment platform internal and external air paths;

[0025] Then, the refrigerant fluorine path of compressor cavity cavity and outer heat exchanger assembly cavity is communicated to become a commercial air conditioner main machine complete machine;After that, the fluorine path of air conditioner indoor unit or plate heat exchanger built-in main machine is communicated to jointly construct closed multi-connected refrigerant circuit.

[0026] Preferably, longitudinal exhaust cavity cavity, outer heat exchanger assembly cavity and compressor cavity cavity are assembled in sequence;Or outer heat exchanger assembly cavity, longitudinal exhaust cavity cavity and compressor cavity cavity are assembled in sequence.

[0027] Further, the combined commercial air conditioner main machine is arranged between columns of equipment platform, and is arranged from the column, i.e. the column is the starting point of the arrangement of the combined commercial air conditioner main machine;A larger interval is left in the middle between two columns.

[0028] The combined commercial air conditioner main machines are arranged at intervals, and the interval between the combined commercial air conditioner main machines and the maintenance platform formed by the upper surface of longitudinal exhaust cavity cavity provide space for air conditioner main machine maintenance, maintenance and other operations.

[0029] Compared with the prior art, the utility model has the following beneficial effects:

[0030] ①The problem of vertical transportation of high-power commercial air conditioner main machine in engineering site is solved

[0031] The utility model carries out machine structure decoupling and modularization design to commercial air conditioner main machine, and decouples the commercial air conditioner main machine into at least three first-level components, such as compressor cavity, outer heat exchanger assembly cavity and longitudinal exhaust cavity cavity;The outer heat exchanger assembly cavity and longitudinal exhaust cavity cavity are two-section structure, and the compressor cavity cavity is attached to the two-section structure;The size of each first-level component is designed according to the requirement of vertical transportation of ordinary elevator.

[0032] The three first-level assemblies of the compressor cavity, the longitudinal exhaust cavity cavity, and the outer heat exchanger assembly cavity of the embodiment are balanced in technical parameters and structural dimensions, are independently designed and manufactured, and can be transported to an equipment platform site by using a common elevator and then assembled into a commercial air conditioner main unit.

[0033] ② Provides necessary operation space for installation, maintenance, maintenance, and removal of the air conditioner main unit

[0034] In the utility model, the longitudinal exhaust cavity cavity as the lower section of the two-section structure extends outward on three sides; the lateral extension of the two sides enlarges the width of the longitudinal exhaust cavity, reduces the height of the longitudinal exhaust cavity, and reduces the vertical proportion of the height of the longitudinal exhaust cavity on the outer facade of the equipment platform, and sets the lower limit of the lateral spacing of the outer heat exchanger assembly cavities of adjacent air conditioner main units; the longitudinal extension section of the front side is inserted into the upper part of the equipment platform counter-slope in the direction of the bottom disc, and is docked with the pre-set exhaust port on the outer facade; the longitudinal extension section of the front side, together with the lateral extension sections of the two sides, is connected to form the platform-type waist of the main unit, and provides necessary operation space for the installation, maintenance, maintenance, and removal operation of the outer heat exchanger assembly cavity of the air conditioner main unit.

[0035] ③ Realizes perfect combination of technical inheritance and innovation

[0036] The utility model solves the two technical problems of vertical transportation of the air conditioner main unit by using a common elevator and the operation space required for maintenance and maintenance activities of the air conditioner main unit on the equipment platform, inherits the technology of the air conditioner main unit and the equipment platform (application number 202310972409.9) with vertical arrangement of the fan, adopts the excellent design technologies of the broken line finned tube heat exchanger assembly, the same side and upper and lower arrangement of the air inlet and exhaust port, the expansion of the top space of the equipment platform, the construction of the low-resistance external heat exchanger air path penetrating the outer facade decoration structure of the equipment platform, and further explores the heat exchange potential of the redundant space at the top of the equipment platform, greatly improves the body load strength of the air conditioner main unit, the horizontal line density of the load of the equipment platform, and the appearance degree of the outer facade of the equipment platform; in the semi-closed building corridor (i.e. embedded equipment platform) scene, the air conditioner main unit body design is innovated to realize the air path coupling and energy coupling of the air conditioner main unit and the building outer facade decoration structure, and perfect combination of technical inheritance and innovation is realized. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 A three-dimensional sectional view of a heavy-load air conditioner main unit with vertical arrangement of a V-shaped finned tube heat exchanger and continuous arrangement of a centrifugal fan is provided for the prior art level.

[0038] Figure 2 A running vertical sectional view of a heavy-load air conditioner main unit with vertical arrangement of a V-shaped finned tube heat exchanger and continuous arrangement of a centrifugal fan is provided for the prior art level.

[0039] Figure 3 A schematic diagram of a combined commercial air conditioning host system of Example 1;

[0040] Figure 4 A three-view diagram of a combined commercial air conditioning host of Example 1;

[0041] Figure 5 A three-dimensional sectional view of a combined commercial air conditioning host of Example 1;

[0042] Figure 6 A top view of an outer heat exchanger assembly cavity of a combined commercial air conditioning host of Example 1;

[0043] Figure 7 A top view of an outer heat exchanger assembly cavity of a combined commercial air conditioning host of Example 2 using a copper pipe M-shaped finned tube heat exchanger;

[0044] Figure 8 An equipment platform outer facade structure using a combined commercial air conditioning host of Example 3;

[0045] Figure 9 A schematic diagram of air flow of a combined commercial air conditioning host system of Example 3;

[0046] Figure 10 A top view of air flow of a combined commercial air conditioning host on an equipment platform of Example 3;

[0047] Figure 11 A schematic diagram of air flow distribution of an equipment platform using a combined commercial air conditioning host of Example 3 when in operation;

[0048] Figure 12 A structure diagram for installing and suspending an inner-outer machine refrigerant pipeline capable of three-dimensional movement of an air conditioning host. DETAILED DESCRIPTION

[0049] In order to make the objects, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments, all other embodiments obtained by those of ordinary skill in the art without any creative effort belong to the scope of protection of the present application.

[0050] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terms "first", "second", and similar terms are not intended to denote any order, quantity, or importance, but are merely used to distinguish different components. The terms "include" or "contain" and similar terms mean that the elements or objects before the terms encompass the elements or objects listed after the terms and their equivalents, and do not exclude other elements or objects. The terms "connected" or "connected" and similar terms are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0051] In the description of the present application, it should be understood that the terms "transverse", "longitudinal", "length", "upper", "lower", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the present application.

[0052] Definition: Set the direction perpendicular to the equipment platform facade as the longitudinal direction, the direction parallel to the equipment platform facade as the transverse direction, and the direction perpendicular to the equipment platform bottom plate as the vertical direction.

[0053] Embodiment 1

[0054] As shown in Figures 3 to 6 A combined commercial air conditioner host is composed of modules, the modules include a compressor cavity 1 provided with a compressor 11, an outer heat exchanger assembly cavity 2 provided with an outer heat exchanger assembly 21 and a vertical exhaust cavity 22, and a longitudinal exhaust cavity cavity 3 communicating with the vertical exhaust cavity 22; the longitudinal exhaust cavity cavity 3 is arranged below the outer heat exchanger assembly cavity 2 and fixedly connected with the bottom plate of the vertical exhaust cavity 22; the compressor cavity 1 is arranged at the side edge of the longitudinal exhaust cavity cavity 3 and communicates with the outer heat exchanger assembly cavity 2 in the fluorine path and the circuit; the air outlet 31 of the longitudinal exhaust cavity cavity 3 and the air inlet 23 of the outer heat exchanger assembly 21 are oriented in the same direction.

[0055] The horizontal interface size of the longitudinal exhaust cavity cavity 3 is greater than or equal to the horizontal cross-sectional size of the outer heat exchanger assembly cavity 2.

[0056] The back plate 24 of the outer heat exchanger assembly cavity 2 is arranged flush with the back plate 32 of the longitudinal exhaust cavity cavity 3; the compressor cavity 1 is arranged on the back plate 32 of the longitudinal exhaust cavity cavity 3.

[0057] The bottom of the longitudinal exhaust cavity cavity 3 and the compressor cavity 1 is provided with a base 4.

[0058] The outer heat exchanger assembly 21 is composed of at least two flat plate finned tube heat exchangers 211, and is a V-shaped or N-shaped or M-shaped or "IWI"-shaped finned tube heat exchanger structure.

[0059] The size of the module meets the size that can enter the ordinary elevator car and the car door.

[0060] On the basis of continuing to inherit the design technology of the outer heat exchanger assembly cavity 2, the air inlet 23 and the air outlet 31 on the same side of the polyline type outer heat exchanger assembly cavity, the top space of the equipment platform 5, the low-resistance decorative mechanism 51 penetrating the outer surface of the equipment platform, and the outer heat exchanger air path, the embodiment focuses on the two scenes of using ordinary elevator vertical transportation air conditioner host and the operation space required for maintenance and repair of the air conditioner host on the equipment platform 5, and the process practice technical problems in the background technology. The commercial air conditioner host is decoupled and modularized, and the commercial air conditioner host is decoupled into at least three first-level components: the compressor cavity 1, the outer heat exchanger assembly cavity 2, and the longitudinal air exhaust cavity 3. The size of each first-level component is designed to meet the requirements of ordinary elevator vertical transportation.

[0061] The three first-level components of the compressor cavity 1, the longitudinal air exhaust cavity 3, and the outer heat exchanger assembly cavity 2 in the embodiment are uniformly planned and balanced in technical parameters and structural size, independently designed and manufactured, transported to the commercial building equipment platform site in batches by elevator, and then assembled into a commercial air conditioner host whole machine. Finally, the fluorine circuit and the circuit connecting the air conditioner host and the air conditioner indoor unit are jointly constructed to form a closed multi-split refrigerant circuit.

[0062] In the embodiment, the commercial host whole machine built by the three first-level components of the compressor cavity 1, the longitudinal air exhaust cavity 3, and the outer heat exchanger assembly cavity 2 has an upper and lower two-section structure, and the compressor cavity 1 is attached to the two-section structure.

[0063] In the embodiment, the longitudinal air exhaust cavity 3 as the lower section of the two-section structure has three outwardly extending sides, i.e., the horizontal interface size of the longitudinal air exhaust cavity 3 is greater than or equal to the horizontal cross-sectional size of the outer heat exchanger assembly cavity 2.

[0064] The lateral extension of the left and right sides enlarges the width of the longitudinal exhaust cavity, reduces the height of the longitudinal exhaust cavity, and reduces the vertical proportion of the height of the longitudinal exhaust cavity on the outer facade of the equipment platform, and sets the lower limit of the lateral spacing of adjacent main machines; the longitudinal extension section of the front side is inserted into the front of the base 4 above the counter 53 of the equipment platform 5, and is docked with the pre-set exhaust port on the outer facade; the longitudinal extension section of the front side is connected with the lateral extension sections on both sides to form a platform-type waistline of the air conditioning main machine, which provides the necessary operation space for the operator to install, maintain, repair, and remove the outer heat exchanger assembly cavity of the air conditioning main machine.

[0065] The secondary components of the three primary assemblies of the embodiment are as follows:

[0066] ① The outer heat exchanger assembly cavity 2 includes an outer heat exchanger assembly 21, a backward centrifugal fan 25, and a vertical exhaust cavity 22; the outer heat exchanger assembly 21 is arranged on the air inlet face of the air inlet 23 of the outer heat exchanger assembly cavity 2, and is in communication with the heat exchanger assembly negative pressure cavity of the heat exchange air path of the outer heat exchanger assembly 21; the back plate of the heat exchanger assembly negative pressure cavity is provided with an air outlet, and two backward centrifugal fans 25 and a vertical exhaust cavity 22 are installed on the air outlet.

[0067] ② The longitudinal exhaust cavity 3 includes a longitudinal exhaust cavity 33 and a lateral extension exhaust section 34, which are in communication with the vertical exhaust cavity 22; the exhaust port 31 of the longitudinal exhaust cavity 3 faces the short side of the air conditioning main machine.

[0068] ③ The compressor cavity 1 includes a compressor 11, a gas-liquid separator 12, a four-way valve 13, and an electrical box 14.

[0069] The backward centrifugal fan 25 in the outer heat exchanger assembly cavity 2 of the embodiment is the most restrictive factor in meeting the structural design conditions of the air conditioning main machine for elevator transportation, because the impeller outer diameter significantly exceeds the impeller air inlet diameter; therefore, the backward centrifugal fan 25 with low static pressure, large air volume, and low noise is adopted in the embodiment, and the impeller outer diameter is greatly reduced under the condition of the impeller air inlet diameter being determined, so as to reduce the restriction of the centrifugal fan on the main machine structural design.

[0070] The outer heat exchanger assembly cavity of the embodiment adopts a flat plate finned tube heat exchanger 211 to combine a copper tube "IWI" type finned tube heat exchanger body structure; among them, the copper tube W-shaped finned tube heat exchanger part relies on the front air inlet face for air supply; the two copper tube I-shaped finned tube heat exchanger parts mainly utilize the lateral spacing of the air conditioning main machine for air supply, in addition to a small amount of air supply from the front air inlet face.

[0071] Embodiment 2

[0072] This embodiment and embodiment 1, both focus on the use of ordinary elevator vertical transportation air conditioner host and the operation space required for maintenance and repair of air conditioner host on the equipment platform two big scene, process of practical technical problems, the implementation of structural decoupling and modular design of commercial air conditioner host, the commercial air conditioner host is decoupled into compressor cavity, outer heat exchanger assembly cavity, at least three first level components such as longitudinal exhaust cavity cavity; The size of each first level component is designed to meet the requirements of ordinary elevator vertical transportation; And the three first level components, technical parameters and structure size are balanced, designed and manufactured independently, and assembled into commercial air conditioner host whole machine by using elevator dispersion transportation to equipment platform site.

[0073] As shown in Figure 7 The difference of this embodiment is that the outer heat exchanger assembly 21 adopts copper pipe M type finned tube heat exchanger.

[0074] This embodiment adopts copper pipe M type finned tube heat exchanger for outer heat exchanger assembly 21, which is simpler in structure than "IWI" structure of embodiment 1, and is more suitable for relatively small power models.

[0075] Embodiment 3

[0076] As shown in Figures 8 to 10 A kind of equipment platform 5 of setting combination commercial air conditioner host, the exhaust port 31 of longitudinal exhaust cavity cavity 3 is aligned with the low-position exhaust port 52 reserved in building facade, and the air inlet 23 of outer heat exchanger assembly cavity 2 is aligned with the decoration mechanism 51 in the upper part of building facade;

[0077] The upper surface of longitudinal exhaust cavity cavity 3 constitutes a maintenance platform.

[0078] At least one row of combination commercial air conditioner host is arranged in the equipment platform 5 along the transverse direction.

[0079] The equipment platform 5 includes reverse ridge 53, crossbeam 55, stand column 54, decoration mechanism 51 and low-position exhaust port 52.

[0080] A kind of installation method of setting combination commercial air conditioner host in equipment platform, comprising the following steps: using elevator to transport each module, including compressor cavity 1, longitudinal exhaust cavity cavity 3, outer heat exchanger assembly cavity 2, to the floor where equipment platform 5 is located, and then transported to equipment platform site;

[0081] In equipment platform site, in the order of longitudinal exhaust cavity cavity 3, outer heat exchanger assembly cavity 2 and compressor cavity, they are sequentially assembled in place, the exhaust port 31 of longitudinal exhaust cavity cavity 3 is aligned with the low-position exhaust port 52 reserved in building facade 58, and the air inlet 23 of outer heat exchanger assembly cavity 2 is aligned with the transparent decoration mechanism 51 in the upper part of equipment platform facade 58;

[0082] The vertical exhaust cavity 22 of the external heat exchanger assembly cavity 2 is connected to the longitudinal exhaust cavity 33, thus completing the internal air duct of the air conditioning unit's external heat exchanger and the connection between the internal and external air ducts of the equipment platform.

[0083] The refrigerant circuit of the compressor cavity 1 is then connected to the refrigerant circuit of the external heat exchanger assembly cavity 2 to form the complete commercial air conditioning unit; then, it is connected to the refrigerant circuit 56 of the indoor air conditioning unit 7 or the plate heat exchanger built into the unit to jointly construct a closed multi-unit refrigerant circuit.

[0084] In this embodiment, the longitudinal extension section at the front of the longitudinal exhaust cavity 3 of the combined commercial air conditioning unit, together with the transverse extension sections on both sides, are connected to form the platform-type waist of the unit. That is, the upper surface of the longitudinal exhaust cavity 3 constitutes a maintenance platform, providing important operating space for operators to perform installation, inspection and maintenance operations on the external heat exchanger cavity of the air conditioning unit.

[0085] During operation of this embodiment, the ambient fresh air passes through the upper and middle decorative structure 51 (e.g., louvers) on the outer facade of the equipment platform in a large area, at low speed and with low resistance. It then passes through the front air inlet surface and the side air supply strips of the external heat exchanger assembly cavity 2 of the air conditioning unit and enters the external heat exchanger assembly 21. After heat exchange, it is drawn in by the backward centrifugal fan 25, pressurized and sent into the vertical exhaust cavity 22 in the external heat exchanger assembly cavity 2, and then turns into the bottom longitudinal exhaust cavity 33. Finally, it is ejected at high speed from the exhaust section of the longitudinal exhaust cavity 3, which is connected to the low exhaust port 52 reserved on the outer facade, and discharged into the ambient atmosphere for diffusion and dilution.

[0086] Example 4

[0087] like Figures 11 to 12 As shown, an installation method for setting the combined commercial air conditioning unit on an equipment platform, based on embodiment 3, further includes the following steps:

[0088] The modular commercial air conditioning units are arranged between the columns 54 of the equipment platform, starting from the column closest to the column 54. That is, the column 54 is the starting point for arranging the modular commercial air conditioning units. A large gap 57 is left in the middle between the two columns 54. When a modular commercial air conditioning unit malfunctions and needs to be moved out for repair or equipment replacement, the air conditioning unit can be moved sequentially to the middle gap 57 to make room for disassembling and repairing the malfunctioning machine or moving it out of the equipment platform in modules.

[0089] The modular commercial air conditioning units are arranged at intervals. The maintenance platform formed by the intervals between the modular commercial air conditioning units and the upper surface of the longitudinal exhaust cavity 3 is sufficient to provide space for maintenance and repair work.

[0090] The combined commercial air conditioner host is arranged close to the outer facade 58 of the equipment platform; a back plate of the combined commercial air conditioner host and an inner wall of the equipment platform form a three-in-one channel for people walking, carrying out maintenance, and arranging the inner-outer machine connecting pipeline 8 and the bridge 9. The three-in-one channel serves as a residence area and a buffer area of the air conditioner host, realizes sequential movement of multiple air conditioner hosts, realizes large-scale movement of a single air conditioner host in the longitudinal and transverse directions under a specific functional target, and is convenient for installation, maintenance, and maintenance.

[0091] The fluorine connecting pipeline 8 between the air conditioner inner and outer machines includes a connecting section 81 connected with the air conditioner host, a vertical section 82, and a three-dimensional inclined section 83; the connecting section 81 of the inner-outer machine connecting pipeline 8 is connected with the vertical section 82, the vertical section is upwardly bent at an obtuse angle to form the three-dimensional inclined section 83, and the three-dimensional inclined section 83 is upwardly connected with the copper pipe on the connecting bridge 9.

[0092] The three-dimensional inclined section 83 is expanded in the vertical, transverse, and longitudinal directions, or the three-dimensional inclined section 83 is S-shaped and upwardly bent to be connected with the copper pipe on the connecting bridge 9. The transverse length of the three-dimensional inclined section 83 is not less than the width of two air conditioner hosts 2.

[0093] The air conditioner host installation of the embodiment can be three-dimensionally moved under the condition that the inner-outer machine refrigerant pipeline is communicated, the spatial structural relationship among the multi-split air conditioner host, the connecting copper pipe, the bridge, and the equipment platform is innovated, so as to realize the target of “on the equipment platform densely arranged with multi-split air conditioner hosts, only the position of the multi-split air conditioner host needs to be moved without emptying the refrigerant and without disassembling the inner-outer machine copper pipe connection to implement the inspection and maintenance of the part built-in components of the multi-split air conditioner”.

[0094] The embodiment adopts the method that each copper pipe is first vertically upwardly bent at an obtuse angle to enter the connecting bridge 9, the connecting copper pipe enters the connecting bridge 9 after lagging behind the air conditioner host body position by more than two positions of the width, and the connecting copper pipe is elastically suspended, so as to ensure that the inner-outer machine connecting copper pipe 8 can be moved correspondingly without causing the connecting copper pipe to be wrinkled and damaged in strength that cannot be recovered when the air conditioner host is three-dimensionally moved in the longitudinal, transverse, and vertical directions.

[0095] When the air conditioner host is moved, the connecting copper pipe on the air conditioner host chassis can move correspondingly, and since the total length of the vertical copper pipe and the upward copper pipe from the air conditioner host chassis pipe opening to the fixed position where the connecting copper pipe enters the connecting bridge 9 is more than 5 meters, sufficient elastic space is provided for the pipe opening to move without causing the connecting copper pipe to be wrinkled and damaged in strength that cannot be recovered; thus, on the equipment platform, only the position of the multi-split air conditioner host in the maintenance aisle needs to be moved to open the multi-split air conditioner host structure, implement the inspection and maintenance of the part built-in components of the multi-split air conditioner, and do not need to empty the refrigerant and disassemble the inner-outer machine copper pipe connection.

[0096] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A packaged commercial air conditioning unit, comprising: The module assembly is composed of a compressor cavity provided with a compressor, an outer heat exchanger assembly cavity provided with an outer heat exchanger assembly and a vertical exhaust cavity, and a longitudinal exhaust cavity cavity communicated with the vertical exhaust cavity; The longitudinal exhaust cavity cavity is arranged below or above the outer heat exchanger assembly cavity and is fixedly connected with the bottom plate or the top plate of the vertical exhaust cavity; The compressor cavity is arranged at the side of the outer heat exchanger assembly cavity and the longitudinal exhaust cavity cavity and is communicated with the outer heat exchanger assembly cavity through a fluorine channel and an electric circuit; The air outlet of the longitudinal exhaust cavity cavity and the air inlet of the outer heat exchanger assembly are in the same direction.

2. The packaged commercial air conditioning unit of claim 1, wherein: The horizontal interface size of the longitudinal exhaust cavity cavity is greater than or equal to the horizontal cross-sectional size of the outer heat exchanger assembly cavity.

3. The packaged commercial air conditioning unit of claim 2, wherein: The back plate of the outer heat exchanger assembly cavity is arranged flush with the back plate of the longitudinal exhaust cavity cavity. The compressor cavity is arranged at the back plate of the outer heat exchanger assembly cavity and the longitudinal exhaust cavity cavity.

4. The packaged commercial air conditioning unit of claim 3, wherein: The bottom of the longitudinal exhaust cavity cavity and the bottom of the compressor cavity are provided with a base.

5. The packaged commercial air conditioning unit of claim 3, wherein: The outer heat exchanger assembly is a finned tube heat exchanger structure composed of at least two flat finned tube heat exchangers.

6. The packaged commercial air conditioning unit of claim 1, wherein, The size of the module meets the size of entering the ordinary elevator car and the car door.

7. An equipment platform for the modular commercial air conditioning unit of any one of claims 1-6, wherein, The air outlet of the longitudinal exhaust cavity cavity is aligned with the low-position air outlet or the high-position air outlet reserved in the building facade, and the air inlet of the outer heat exchanger assembly cavity is aligned with the transparent decoration mechanism in the upper or lower part of the building equipment platform facade; The upper surface of the longitudinal exhaust cavity cavity aligned with the low-position air outlet reserved in the building facade constitutes a maintenance platform.

8. The device platform of claim 7, wherein, At least one row of the combined commercial air conditioning main unit is arranged in the equipment platform in the transverse direction.

9. The device platform of claim 7, wherein, The combined commercial air conditioning main unit is arranged between the columns of the equipment platform and is arranged from the column close to the column, that is, the column is the starting point of the arrangement of the combined commercial air conditioning main unit; a larger gap is left in the middle between the two columns; the combined commercial air conditioning main units are arranged at intervals.

10. The device platform of claim 7, wherein, The combined commercial air conditioning main unit is arranged close to the facade of the equipment platform; a three-in-one channel for pedestrians, maintenance, and setting of indoor and outdoor unit connecting pipelines and bridge is formed between the back plate of the combined commercial air conditioning main unit and the inner wall of the equipment platform.

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