Cooling unit

Abstract

The utility model discloses a cooling unit which comprises a unit body and a heat exchange core. The heat exchange core body at least divides an indoor heat exchange air duct and an outdoor heat exchange air duct in the machine body; an indoor gallery is arranged in the machine body, the indoor gallery and the indoor heat exchange air duct are separated from each other and are communicated through an air path, and the indoor gallery and the outdoor heat exchange air duct are separated from each other and are not communicated through an air path; a part of the maintenance access of the indoor heat exchange air duct and the indoor fan are positioned in the indoor gallery; and a maintenance access of the outdoor heat exchange air duct is positioned outside the indoor gallery. Part of the overhaul access of the indoor heat exchange air duct, the indoor fan and the indoor gallery are located in the same space, so that indoor air and outdoor air can be prevented from moving and intersecting during overhaul, the characteristic that part of equipment of the indoor fan, the indoor gallery and the indoor heat exchange air duct is equivalent in overhaul frequency can be fully utilized, the overhaul path is optimized, and the overhaul efficiency is improved; the outdoor heat exchange air duct and the indoor gallery are isolated in different spaces, and interference on indoor air circulation when the outdoor heat exchange air duct is overhauled is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of air-conditioning equipment, and in particular to a cooling unit. Background Art

[0002] At present, some industrial precision air conditioners are set as integrated large and medium-sized cooling units, which are equipped with one or more heat exchange cores and multiple air ducts that allow indoor and outdoor air to enter and exit the heat exchange cores. Different components can be set in different air ducts. For example, some air ducts are equipped with evaporators, some air ducts are equipped with condensers, and some air ducts are equipped with spray pipes and filters. The heat exchange core and various components in the air duct play an indispensable role in the refrigeration operation of the cooling unit, so they need to be checked and repaired frequently.

[0003] However, the above-mentioned cooling unit is large in size and has a complex internal structure. When maintenance passages are set for the heat exchange core and each air duct respectively, unreasonable maintenance passages will not only increase the difficulty of maintenance work for maintenance personnel, but also interfere with the installation performance of other equipment in the cooling unit.

[0004] Based on this, in the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: the relationship between the frequency of use of some maintenance channels and their installation positions is not very reasonable, which will increase the moving distance and number of actions of the maintenance personnel, thereby increasing the difficulty and burden of the maintenance personnel's work, and will also occupy the limited important space in the cooling unit, resulting in space waste.

[0005] In summary, how to optimize the layout of the maintenance passage in the cooling unit has become an urgent problem to be solved by those skilled in the art. Utility Model Content

[0006] The purpose of the present application is to provide a cooling unit that can optimize the layout of the maintenance passage within the cooling unit and solve various technical problems caused by the unreasonable frequency of use and distribution position of the maintenance passage.

[0007] To achieve the above-mentioned purpose, the present application provides a cooling unit, including a body and a heat exchange core; the heat exchange core at least separates an indoor heat exchange duct and an outdoor heat exchange duct in the body; an indoor corridor is provided in the body, the indoor corridor and the indoor heat exchange duct are separated from each other and the air path is connected, and the indoor corridor and the outdoor heat exchange duct are separated from each other and the air path is not connected; some maintenance entrances and exits of the indoor heat exchange duct and the indoor fan are both located in the indoor corridor; the maintenance entrances and exits of the outdoor heat exchange duct are located outside the indoor corridor.

[0008] In some embodiments, the indoor heat exchange air duct includes an indoor air inlet cavity and an indoor air outlet cavity separated from both sides of the heat exchange core; the maintenance entrance and exit of the indoor heat exchange air duct includes a first maintenance entrance and exit for maintenance personnel to enter and exit the indoor air outlet cavity, and the first maintenance entrance and exit is arranged on the machine wall between the indoor air outlet cavity and the indoor corridor.

[0009] In some embodiments, the indoor corridor is located below the indoor air outlet cavity; the first inspection entrance and exit is arranged on the machine wall between the top of the indoor corridor and the bottom of the indoor air outlet cavity.

[0010] In some embodiments, the outdoor heat exchange air duct includes an outdoor air inlet cavity and an outdoor air outlet cavity separated from both sides of the heat exchange core; the maintenance entrance and exit of the outdoor heat exchange air duct includes a second maintenance entrance and exit for maintenance personnel to enter and exit the outdoor air inlet cavity, and the second maintenance entrance and exit is located on the side of the outdoor air inlet cavity.

[0011] In some embodiments, the outdoor heat exchange air duct includes two outdoor air inlet cavities; a first maintenance corridor is also provided in the machine body; the indoor air outlet cavity and the two outdoor air inlet cavities are all provided on one side of the first maintenance corridor, and are all distributed on the same floor as the first maintenance corridor; the two second maintenance entrances and exits are respectively located at the two ends of the first maintenance corridor and are respectively connected to the two outdoor air inlet cavities.

[0012] In some embodiments, a plurality of compressors are disposed in the middle of the first maintenance corridor; all the compressors are concentrated in the middle of the first maintenance corridor, and all the compressors are adjacent to the side of the indoor air outlet cavity.

[0013] In some embodiments, the indoor heat exchange air duct includes two indoor air inlet cavities; a second maintenance corridor is also provided in the machine body; the outdoor air outlet cavity and the two indoor air inlet cavities are all provided on one side of the second maintenance corridor, and are all distributed on the same floor as the second maintenance corridor; the maintenance entrance and exit of the outdoor heat exchange air duct also includes a third maintenance entrance and exit for maintenance personnel to enter and exit the indoor air inlet cavity; each third maintenance entrance and exit is connected to the second maintenance corridor through a first closed door.

[0014] In some embodiments, an equipment cavity is also provided in the machine body; the equipment cavity, the first inspection corridor and the second inspection corridor are arranged in layers from bottom to top on the same side of the machine body; the indoor corridor and the equipment cavity are distributed on the same floor and are connected through a second closed door.

[0015] In some embodiments, two first movable skylights for passage are provided between the equipment cavity and the first maintenance corridor, and the two first movable skylights are respectively located at the two ends of the bottom surface of the first maintenance corridor; a second movable skylight for passage is provided between the first maintenance corridor and the second maintenance corridor, and the second movable skylight is located in the middle of the bottom surface of the second maintenance corridor; a third movable skylight for passage is provided in the middle of the top surface of the second maintenance corridor.

[0016] In some embodiments, the equipment cavity includes an electricity cavity that can accommodate electrical control equipment and a distribution box, and a water cavity that can accommodate a water tank and a water pump; a connected transfer cavity is provided at one end of the equipment cavity; the transfer cavity is provided with a third closed door that opens to the outside; both the electricity cavity and the water cavity are provided with a fourth closed door that opens to the outside; the transfer cavity and the indoor corridor are connected through a second closed door.

[0017] Compared with the above-mentioned background technology, the cooling unit provided in the present application includes a body and a heat exchange core; an indoor corridor is provided in the body; the heat exchange core at least separates an indoor heat exchange air duct and an outdoor heat exchange air duct in the body; in the cooling unit, the indoor corridor and the indoor heat exchange air duct are separated from each other and the air path is connected, and the indoor corridor and the outdoor heat exchange air duct are separated from each other and the air path is not connected; some maintenance entrances and exits of the indoor heat exchange air duct and the indoor fan are both in the indoor corridor; the maintenance entrances and exits of the outdoor heat exchange air duct are outside the indoor corridor.

[0018] Some maintenance entrances and exits of indoor fans, indoor corridors and indoor heat exchange ducts are jointly arranged in the same space, which can avoid the convergence of indoor wind and outdoor wind during maintenance. At the same time, the maintenance frequency of some equipment in indoor fans, indoor corridors and indoor heat exchange ducts is equivalent, and the indoor fans, indoor corridors and indoor heat exchange ducts in the same space can be maintained at one time, which is conducive to optimizing the maintenance path of maintenance personnel and improving maintenance efficiency, and reducing the difficulty and burden of maintenance personnel's work.

[0019] The maintenance entrances and exits of the indoor corridor and the outdoor heat exchange air duct are isolated in different spaces. When inspecting the outdoor heat exchange air duct, maintenance personnel entering and exiting the maintenance entrance and exit of the outdoor heat exchange air duct will not interfere with the indoor wind flowing through the indoor corridor, the indoor heat exchange air duct and the indoor fan.

[0020] As can be seen from the above, the cooling unit provided in the present application is provided with different maintenance entrances and exits for the indoor heat exchange air duct and the outdoor heat exchange air duct respectively. Each maintenance entrance and exit is arranged at a specific position suitable for the maintenance work characteristics of the space in which it is located, so as to meet the passage requirements of maintenance personnel in different parts of the machine body and facilitate maintenance personnel to perform maintenance work in different parts of the machine body.

[0021] In addition, after the cooling unit provided in the present application adjusts part of the maintenance entrances and exits of the indoor heat exchange duct to between the indoor corridor and the indoor heat exchange duct, other space around the indoor heat exchange duct can be vacated, which makes it convenient to set up other important equipment of the cooling unit in the free space around the indoor heat exchange duct, which is conducive to optimizing the layout of these important equipment in the machine body and avoiding wasting the limited space in the cooling unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] Figure 1 A schematic diagram of the structure of a cooling unit provided in an embodiment of the present application;

[0024] Figure 2 A schematic diagram of the structure of a cooling unit provided in an embodiment of the present application in a first direction;

[0025] Figure 3 A schematic diagram of the local structure of the cooling unit provided in the embodiment of the present application at the heat exchange core and the compressor;

[0026] Figure 4 A schematic diagram of the structure of the cooling unit provided in an embodiment of the present application in the second direction;

[0027] Figure 5 A schematic diagram of the structure of the cooling unit provided in the embodiment of the present application in the third direction;

[0028] Figure 6 A schematic diagram of the structure of the cooling unit provided in an embodiment of the present application in a fourth direction;

[0029] Figure 7 for Figure 6 A partial enlarged view of the first maintenance entrance and exit.

[0030] in,

[0031] 1-machine body, 2-heat exchange core,

[0032] 3-Indoor heat exchange air duct, 31-Indoor air inlet cavity, 32-Indoor air outlet cavity,

[0033] 4-outdoor heat exchange air duct, 41-outdoor air inlet cavity, 42-outdoor air outlet cavity,

[0034] 5-indoor corridor, 6-indoor fan, 7-first maintenance entrance and exit, 8-second maintenance entrance and exit, 9-first maintenance corridor, 10-compressor, 11-second maintenance corridor, 12-third maintenance entrance and exit, 13-first closed door, 14-equipment cavity, 15-second closed door, 16-first movable skylight, 17-second movable skylight, 18-third movable skylight, 19-transfer cavity, 20-third closed door, 21-fourth closed door, 22-bottom layer board frame, 23-middle layer board frame, 24-top layer board frame, 25-maintenance corridor board frame, 26-outdoor fan, 27-intracavity corridor board. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0036] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] Please refer to Figures 1 to 7 , Figure 1 A schematic diagram of the structure of a cooling unit provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a cooling unit provided in an embodiment of the present application in a first direction; Figure 3 A schematic diagram of the local structure of the cooling unit provided in the embodiment of the present application at the heat exchange core and the compressor; Figure 4 A schematic diagram of the structure of the cooling unit provided in an embodiment of the present application in the second direction; Figure 5 A schematic diagram of the structure of the cooling unit provided in the embodiment of the present application in the third direction; Figure 6 A schematic diagram of the structure of the cooling unit provided in an embodiment of the present application in a fourth direction; Figure 7 for Figure 6 A partial enlarged view of the first maintenance entrance and exit.

[0038] For reference Figure 1 and Figure 2 The present application provides a cooling unit, including a body 1 and a heat exchange core 2; an indoor corridor 5 is provided in the body 1; the heat exchange core 2 is provided in the body 1, and the heat exchange core 2 at least separates an indoor heat exchange air duct 3 and an outdoor heat exchange air duct 4 in the body 1, the indoor heat exchange air duct 3 uses indoor air as a medium to realize a cooling cycle, and the outdoor heat exchange air duct 4 uses outdoor air as a medium to realize a cooling cycle. Usually, mechanical refrigeration equipment such as an evaporator, a condenser, and a compressor 10 are also provided in the body 1. Among them, the indoor air can realize indoor air circulation along channels such as the indoor heat exchange air duct 3 and the indoor corridor 5.

[0039] The indoor corridor 5, the indoor heat exchange air duct 3 and the outdoor heat exchange air duct 4 are separated from each other in the machine body 1. For example, a plurality of machine walls are provided in the machine body 1, and the indoor corridor 5 and the indoor heat exchange air duct 3, and the indoor heat exchange air duct 3 and the outdoor heat exchange air duct 4 are separated by the machine walls. The indoor corridor 5 and the indoor heat exchange air duct 3 are connected in gas path. For example, a ventilation channel or ventilation equipment for gas circulation is provided between the indoor corridor 5 and the indoor heat exchange air duct 3, and the indoor air can flow between the indoor corridor 5 and the indoor heat exchange air duct 3 through the ventilation channel or ventilation equipment; the indoor corridor 5 and the outdoor heat exchange air duct 4 are not connected in gas path. For example, the indoor corridor 5 and the indoor heat exchange air duct 3 are separated from each other by a partition structure capable of achieving airtightness. The partition structure can prevent the outdoor air in the outdoor heat exchange air duct 4 from entering the indoor corridor 5, and of course, it can also prevent the indoor air in the indoor corridor 5 from entering the outdoor heat exchange air duct 4.

[0040] It can be seen from the above that the indoor corridor 5 and the indoor heat exchange duct 3 can be divided into two different spaces by the machine wall to achieve mutual separation. At the same time, the indoor corridor 5 and the indoor heat exchange duct 3 can be connected through a ventilation channel or ventilation equipment to achieve air path communication, so as to meet the indoor wind flowing between the indoor corridor 5 and the indoor heat exchange duct 3; the indoor corridor 5 and the outdoor heat exchange duct 4 can be divided into two different spaces by the machine wall to achieve mutual separation. At the same time, the indoor corridor 5 and the outdoor heat exchange duct 4 can be separated from each other by a partition structure that can achieve air sealing, so as to achieve air path blockage and prevent the indoor wind and the outdoor wind from moving and intersecting with each other.

[0041] Both the indoor heat exchange air duct 3 and the outdoor heat exchange air duct 4 are provided with maintenance entrances and exits, and maintenance personnel can enter and exit the indoor heat exchange air duct 3 through the maintenance entrances and exits of the indoor heat exchange air duct 3. Similarly, maintenance personnel can enter and exit the outdoor heat exchange air duct 4 through the maintenance entrances and exits of the outdoor heat exchange air duct 4. The indoor heat exchange air duct 3 and the outdoor heat exchange air duct 4 can be connected to fans respectively. For example, the indoor heat exchange air duct 3 is connected to the indoor fan 6, and the indoor fan 6 drives the indoor air to flow along the indoor heat exchange air duct 3, and the outdoor heat exchange air duct 4 is connected to the outdoor fan 26, and the outdoor fan 26 drives the outdoor air to flow along the outdoor heat exchange air duct 4. In this cooling unit, some maintenance entrances and exits of the indoor heat exchange duct 3 and the indoor fan 6 are located in the indoor corridor 5, so maintenance personnel can inspect the indoor fan 6 and other equipment in the indoor corridor 5 at one time; the maintenance entrances and exits of the outdoor heat exchange duct 4 are located outside the indoor corridor 5, so when maintenance personnel inspect the equipment in the outdoor heat exchange duct 4, it will not cause the outdoor heat exchange duct 4 to communicate with the indoor corridor 5 and the indoor heat exchange duct 3.

[0042] The heat exchange core 2 may include a primary channel and a secondary channel that can exchange heat with each other. Usually, the primary channel is also called an indoor air channel, and the secondary channel is also called an outdoor air channel. The indoor air flows through the heat exchange core 2 along the indoor air channel, and the outdoor air flows through the heat exchange core 2 along the outdoor air channel. Correspondingly, the indoor heat exchange air duct 3 includes an indoor air inlet chamber 31 and an indoor air outlet chamber 32 separated from both sides of the heat exchange core 2. The indoor air inlet chamber 31 and the indoor air outlet chamber 32 are connected to both sides of the indoor air duct. The indoor air can flow along the indoor air inlet chamber 31, the indoor air duct and the indoor air outlet chamber 32 in sequence to achieve indoor air heat exchange; the outdoor heat exchange air duct 4 includes an outdoor air inlet chamber 41 and an outdoor air outlet chamber 42 separated from both sides of the heat exchange core 2. The outdoor air inlet chamber 41 and the outdoor air outlet chamber 42 are connected to both sides of the outdoor air duct. The outdoor air can flow along the outdoor air inlet chamber 41, the outdoor air duct and the outdoor air outlet chamber 42 in sequence to achieve outdoor air heat exchange.

[0043] Typically, the indoor air outlet chamber 32 is provided with an evaporator, and the outdoor air outlet chamber 42 is provided with a condenser; after the indoor air is cooled by the heat exchange core 2, it can be cooled again by the evaporator, and then discharged from the indoor fan 6; after the outdoor air absorbs heat by the heat exchange core 2, it can absorb heat again from the condenser to cool the condenser, and then be discharged from the outdoor fan 26.

[0044] In some prior arts, although a plurality of inspection passages are provided in the cooling unit, and the indoor heat exchange duct 3 and the outdoor heat exchange duct 4 correspond to different inspection passages respectively, the relationship between the operating characteristics of these inspection passages and their installation positions is not reasonable enough: for example, some inspection passages have a relatively low inspection frequency, but are located on a path that requires frequent passage in the cooling unit, occupying the limited space on the path; for another example, when some inspection passages are opened, the indoor wind and the outdoor wind will intersect with each other, but they are set in a space that allows outdoor wind to circulate, which increases the risk of indoor wind and outdoor wind moving and intersecting; for another example, the inspection operations of some inspection passages have a certain correlation, but they are scattered in different parts of the cooling unit and are far apart, which increases the moving distance of the maintenance personnel.

[0045] For the above technical defects of the prior art, please refer to Figure 1 , Figure 2 , Figures 5 to 7In the cooling unit, the indoor heat exchange air duct 3 includes an indoor air inlet cavity 31 and an indoor air outlet cavity 32, and the maintenance entrance and exit of the indoor heat exchange air duct 3 includes a first maintenance entrance and exit 7, which is located between the indoor air outlet cavity 32 and the indoor corridor 5. For example, the first maintenance entrance and exit 7 is arranged on the machine wall between the indoor air outlet cavity 32 and the indoor corridor 5, and maintenance personnel can enter and exit the indoor air outlet cavity 32. The outdoor heat exchange air duct 4 includes an outdoor air inlet cavity 41 and an outdoor air outlet cavity 42, and the maintenance entrance and exit of the outdoor heat exchange air duct 4 includes a second maintenance entrance and exit 8, which is located outside the indoor corridor 5 and connected to the outdoor air inlet cavity 41, and maintenance personnel can enter and exit the outdoor air inlet cavity 41.

[0046] Usually, the indoor corridor 5 is located below the indoor air outlet cavity 32; the indoor corridor 5 and the indoor air outlet cavity 32 are separated by a machine wall, which is located at the top of the indoor corridor 5 and at the bottom of the indoor air outlet cavity 32, and the first maintenance entrance 7 is arranged on the machine wall. The first maintenance entrance 7 is arranged on the machine wall separated by the top of the indoor corridor 5 and the bottom of the indoor air outlet cavity 32, so the first maintenance entrance 7 can be regarded as being arranged downward at the bottom of the indoor air outlet cavity 32, or as being arranged upward at the top of the indoor corridor 5, and can be used as a maintenance entrance for maintenance personnel to enter and exit the indoor air outlet cavity 32. The maintenance frequency of the indoor air outlet cavity 32 and the equipment therein is relatively low. The first maintenance entrance 7 is arranged at the bottom of the indoor air outlet cavity 32 to free up space in other parts of the indoor air outlet cavity 32, especially to free up relatively important space such as the side of the indoor air outlet cavity 32, so as to avoid the first maintenance entrance 7 with a relatively low maintenance frequency from occupying the limited important space in the machine body 1.

[0047] After entering the indoor corridor 5, the maintenance personnel can not only inspect the equipment in the indoor corridor 5, but also open the first maintenance entrance and exit 7 and enter the indoor air outlet chamber 32 to inspect the indoor air outlet chamber 32. Since the indoor air can originally circulate between the indoor corridor 5 and the indoor air outlet chamber 32, when the first maintenance entrance and exit 7 is opened to enter and exit the indoor air outlet chamber 32, even if the indoor air in the indoor corridor 5 and the indoor air in the indoor heat exchange air path are exchanged in large quantities at the first maintenance entrance and exit 7 in a short period of time, it will not cause obvious adverse effects on the normal operation of the heat exchange core 2 and other structures, and can ensure the normal operation of the indoor corridor 5 and its equipment, the indoor air outlet chamber 32 and its equipment, the heat exchange core 2 and other structures. In addition, the maintenance entrance and exit of the outdoor heat exchange air duct 4 is outside the indoor corridor 5, and the indoor corridor 5 can separate the outdoor heat exchange air duct 4 and the indoor heat exchange air duct 3, effectively preventing the indoor wind and the outdoor wind from moving and intersecting during maintenance.

[0048] In addition, the maintenance frequency of the indoor corridor 5 and the equipment therein, and the maintenance frequency of the indoor air outlet chamber 32 and the equipment therein are comparable to each other. When the maintenance personnel are inspecting the indoor corridor 5 and the equipment therein, they can also inspect the indoor air outlet chamber 32 and the equipment therein. Similarly, when the maintenance personnel are inspecting the indoor air outlet chamber 32 and the equipment therein, they can also inspect the indoor corridor 5 and the equipment therein. It can be seen that arranging the indoor fan 6 and the indoor corridor 5 together in the same space can not only avoid the indoor wind and outdoor wind from moving and intersecting due to maintenance, but also enable multiple equipment with comparable maintenance frequencies to be centrally arranged, so as to realize one-time maintenance of the indoor fan 6 and the indoor corridor 5 with comparable maintenance frequencies, which is conducive to optimizing the maintenance path of the maintenance personnel and improving the maintenance efficiency.

[0049] Generally, the maintenance frequency of the outdoor air inlet chamber 41 and the equipment therein is higher than that of the indoor air outlet chamber 32 and the equipment therein, and of course, higher than that of the indoor corridor 5 and the equipment therein. In order to facilitate the maintenance of the outdoor air inlet chamber 41 and the equipment therein, the second maintenance entrance 8 can be set on the side of the outdoor air inlet chamber 41, that is, the maintenance personnel can enter and exit the outdoor air inlet chamber 41 from the side of the outdoor air inlet chamber 41, without having to enter and exit the outdoor air inlet chamber 41 from the top or bottom of the outdoor air inlet chamber 41, which is conducive to reducing the difficulty of maintenance personnel entering and exiting the outdoor air inlet chamber 41.

[0050] For reference Figure 1 and Figure 4 , the machine body 1 is also provided with a first inspection corridor 9; the outdoor heat exchange air duct 4 generally includes two outdoor air inlet chambers 41, and a second inspection entrance and exit 8 is provided on the side of each outdoor air inlet chamber 41, and maintenance personnel can enter and exit the corresponding outdoor air inlet chamber 41 through the second inspection entrance and exit 8; the first inspection corridor 9, the indoor air outlet chamber 32 and the two outdoor air inlet chambers 41 are distributed on the same floor, and the two second inspection entrances and exits 8 are respectively located at both ends of the first inspection corridor 9, and the indoor air outlet chamber 32 is located on the middle side of the first inspection corridor 9. When it is necessary to inspect each outdoor air inlet chamber 41 and the equipment therein, the maintenance personnel can walk along the first inspection corridor 9 to each second inspection entrance and exit 8, and then enter and exit the corresponding outdoor air inlet chamber 41 through the second inspection entrance and exit 8.

[0051] Typically, the indoor air outlet cavity 32 and the two outdoor air inlet cavities 41 are arranged on the same side of the first inspection corridor 9. Figure 1 and Figure 4 The first inspection corridor 9 is arranged horizontally, and the indoor air outlet cavity 32 and the two outdoor air inlet cavities 41 are arranged side by side at the rear side of the first inspection corridor 9. The two second inspection entrances and exits 8 are respectively located at the two ends of the first inspection corridor 9. A partition structure such as a closed door may be arranged between the first inspection corridor 9 and each second inspection entrance and exit 8, or a closed door may not be arranged. In the case where a closed door is not arranged, even if a small amount of wind in the first inspection corridor 9 enters the outdoor air inlet cavity 41, it will not have a significant impact on the outdoor air inlet cavity 41.

[0052] The maintenance frequency of the outdoor air inlet chamber 41 and the equipment therein is relatively high. For example, the maintenance frequency of the outdoor air inlet chamber 41 and the equipment therein is generally higher than the maintenance frequency of the indoor air outlet chamber 32 and the equipment therein. In the above embodiment, the arrangement of the first maintenance corridor 9 and the second maintenance entrance and exit 8 is conducive to reducing the difficulty of maintenance of the outdoor air inlet chamber 41 and the equipment therein: on the one hand, the second maintenance entrance and exit 8 is arranged on the side of the outdoor air inlet chamber 41, and maintenance personnel can enter and exit the outdoor air inlet chamber 41 from the side of the outdoor air inlet chamber 41, without having to jump into the outdoor air inlet chamber 41 from the bottom of the outdoor air inlet chamber 41 upwards or from the top of the outdoor air inlet chamber 41, which reduces the difficulty of maintenance personnel entering and exiting the outdoor air inlet chamber 41 and is conducive to ensuring the safety of maintenance personnel entering and exiting the outdoor air inlet chamber 41; on the other hand, the first maintenance corridor 9 is distributed on the same floor as the two outdoor air inlet chambers 41 and is arranged on one side of the two outdoor air inlet chambers 41, and the two second maintenance entrances and exits 8 are connected by the first maintenance corridor 9, and maintenance personnel can walk freely along the first maintenance corridor 9, and can not only easily reach each second maintenance entrance and exit 8, but also frequently move between the two second maintenance entrances and exits 8.

[0053] The first maintenance corridor 9 can not only serve as a passage for maintenance personnel to walk, but also serve as the installation base for some mechanical refrigeration equipment. Figures 2 to 4 , the second maintenance entrances and exits 8 are respectively arranged at both ends of the first maintenance corridor 9, and a plurality of compressors 10 are arranged in the middle of the first maintenance corridor 9; these compressors 10 are centrally arranged in the middle of the first maintenance corridor 9, and at the same time, these compressors 10 are all close to the side of the indoor air outlet cavity 32. In this cooling unit, the compressor 10, as a device with a relatively high maintenance frequency, is centrally arranged in the middle of the first maintenance corridor 9 to facilitate maintenance by maintenance personnel; the compressor 10, the evaporator of the indoor air outlet cavity 32, and the condenser of the outdoor air outlet cavity 42 are arranged in the same compressor 10 system, and the installation position of the compressor 10 can not only meet the operating requirements of the evaporator and the condenser, but also optimize the pipeline layout of the compressor 10, so that more pipelines of the compressor 10 are neatly and orderly arranged vertically.

[0054] For reference Figure 1 , Figure 2 and Figure 4 A second maintenance corridor 11 is also provided in the machine body 1; the indoor heat exchange air duct 3 generally includes two indoor air inlet chambers 31, and a third maintenance entrance and exit 12 is provided on the side of each indoor air inlet chamber 31, and maintenance personnel can enter and exit the corresponding indoor air inlet chamber 31 through the third maintenance entrance and exit 12; the second maintenance corridor 11, the outdoor air outlet chamber 42 and the two indoor air inlet chambers 31 are distributed on the same floor, and the two third maintenance entrances and exits 12 are respectively located on one side of the two ends of the second maintenance corridor 11, and the outdoor air outlet chamber 42 is located on one side of the middle part of the second maintenance corridor 11.

[0055] In order to reduce the influence of the outdoor wind in the outdoor air outlet cavity 42 and the wind body in the second inspection corridor 11 on the indoor wind in the indoor air inlet cavity 31, each third inspection entrance and exit 12 can be connected with the second inspection corridor 11 through the first closed door 13. When the first closed door 13 is closed, the indoor air inlet cavity 31 is isolated from the outdoor air outlet cavity 42 and the second inspection corridor 11, which can ensure the independence of each other, play the effect of wind body isolation, and can prevent the outdoor air outlet cavity 42, the second inspection corridor 11 and the indoor air inlet cavity 31 from ventilating each other.

[0056] When it is necessary to inspect each indoor air inlet cavity 31 and the equipment therein, the maintenance personnel can walk along the second inspection corridor 11 to each first closed door 13 , and after opening the first closed door 13 , enter the corresponding indoor air inlet cavity 31 through the third inspection entrance 12 .

[0057] In some of the embodiments mentioned above, two groups of heat exchange cores 2 may be arranged in the machine body 1; the two groups of heat exchange cores 2 are arranged in parallel horizontally, the upper chamber between the two groups of heat exchange cores 2 is the outdoor air outlet chamber 42, the lower chamber between the two groups of heat exchange cores 2 is the indoor air outlet chamber 32, the indoor air inlet chambers 31 are arranged on both sides of the outdoor air outlet chamber 42, and the outdoor air inlet chambers 41 are arranged on both sides of the indoor air outlet chamber 32. It can be seen that the indoor air outlet chamber 32 and the two outdoor air inlet chambers 41 are arranged at the same level at the lower part of the two groups of heat exchange cores 2, and the outdoor air outlet chamber 42 and the two indoor air inlet chambers 31 are arranged at the same level at the upper part of the two groups of heat exchange cores 2.

[0058] The two groups of heat exchange cores 2 can be tilted, that is, both the upper and lower sides are tilted, so that the bottom of the indoor air inlet cavity 31, the bottom of the outdoor air outlet cavity 42, the top of the indoor air outlet cavity 32 and the bottom of the outdoor air inlet cavity 41 are all tilted.

[0059] As can be seen from the foregoing, the indoor air outlet chamber 32 and the two indoor air inlet chambers 31 are both cavities of the indoor heat exchange air duct 3. The two indoor air inlet chambers 31 are interconnected with the indoor air outlet chamber 32 through the two heat exchange cores 2. The indoor wind can flow into the heat exchange core 2 from the two indoor air inlet chambers 31 at an angle downward, and then flow from the two heat exchange cores 2 to the indoor air outlet chamber 32 at an angle downward; similarly, the outdoor air outlet chamber 42 and the two outdoor air inlet chambers 41 are both cavities of the indoor heat exchange air duct 3. The two outdoor air inlet chambers 41 are interconnected with the outdoor air outlet chamber 42 through the two heat exchange cores 2. The outdoor wind can flow into the heat exchange core 2 from the two outdoor air inlet chambers 41 at an angle upward, and then flow from the two heat exchange cores 2 to the outdoor air outlet chamber 42 at an angle upward.

[0060] In the above embodiment, in order to facilitate access to the two indoor air inlet cavities 31, a horizontally arranged cavity corridor plate 27 may be provided in each indoor air inlet cavity 31; the cavity corridor plate 27 may be arranged along the cavity corridor plate 27. Figure 1The corridor through the cavity plate 27 can be made of a hollow plate body, such as a mesh structure, a perforated plate structure.

[0061] In some embodiments, an equipment chamber 14 is further provided in the machine body 1; the equipment chamber 14, the first inspection corridor 9 and the second inspection corridor 11 are arranged in layers from bottom to top on the same side of the machine body 1; the equipment chamber 14 is distributed on the same floor as the indoor corridor 5 and is connected through a second closed door 15. The equipment chamber 14 generally includes an electricity chamber and a water chamber; the electricity chamber can accommodate electrical devices such as electric control equipment and distribution boxes, and the water chamber can accommodate water tanks, water pumps, etc.

[0062] For reference Figure 2 and Figure 4 Typically, a working chamber and a maintenance chamber arranged at one lateral end of the working chamber are provided in the machine body 1; the heat exchange core 2 is arranged in the working chamber; the maintenance chamber includes an equipment chamber 14, a first maintenance corridor 9 and a second maintenance corridor 11, which are mainly used to place some frequently maintained components, such as a compressor 10, a water pump, a motor module and other structures, to facilitate maintenance.

[0063] The equipment cavity 14, the first maintenance corridor 9 and the second maintenance corridor 11 are arranged in layers from bottom to top in the maintenance cavity, and the equipment cavity 14, the first maintenance corridor 9 and the second maintenance corridor 11 in the maintenance cavity are arranged together at one lateral end of the working cavity; the heat exchange core 2 is arranged in the working cavity, and the working cavity includes an indoor corridor 5 arranged below the heat exchange core 2, and the indoor corridor 5 is distributed on the same layer as the equipment cavity 14 and is connected through the second closed door 15. When the second closed door 15 is closed, the indoor corridor 5 can be isolated from the equipment cavity 14, which can ensure the independence of the indoor corridor 5 and the equipment cavity 14 from each other, play the effect of wind isolation, and avoid mutual ventilation between the indoor corridor 5 and the equipment cavity 14. When the second closed door 15 is opened, maintenance personnel can move between the indoor corridor 5 and the equipment cavity 14 through the second closed door 15.

[0064] In the above embodiment, the maintenance chamber may also include a transfer chamber 19; the transfer chamber 19 is arranged at one end of the equipment chamber 14 and is connected to the equipment chamber 14; the transfer chamber 19 is provided with a third closed door 20 that opens to the outside, and when the third closed door 20 is opened, maintenance personnel can shuttle between the outside and the transfer chamber 19 through the third closed door 20; the second closed door 15 is arranged between the transfer chamber 19 and the indoor corridor 5, and the transfer chamber 19 and the indoor corridor 5 are connected through the second closed door 15, and the indoor corridor 5 and the equipment chamber 14 are connected through the second closed door 15 and the transfer chamber 19. When the second closed door 15 is opened, maintenance personnel can shuttle between the transfer chamber 19 and the indoor corridor 5 through the second closed door 15, and of course they can also enter the equipment chamber 14 from the transfer chamber 19.

[0065] In the above embodiment, the equipment cavity 14 includes an electricity cavity and a water cavity, and both the electricity cavity and the water cavity are provided with a fourth closed door 21 that opens outwards. Maintenance personnel can enter and exit the electricity cavity and the water cavity of the equipment cavity 14 through the transfer cavity 19, or they can directly enter and exit the electricity cavity and the water cavity from the fourth closed door 21.

[0066] The electric control equipment, distribution box and other equipment in the power cavity and the water tank, water pump and other equipment in the water cavity are all high-frequency maintenance devices. The fourth closed door 21 is respectively provided on the power cavity and the water cavity, which can improve the convenience of maintenance. For example, the maintenance personnel can stand outside the machine body 1 and inspect the equipment in the power cavity through the fourth closed door 21 of the power cavity. Usually, when there are no idle maintenance personnel in the machine body 1, the maintenance personnel outside the machine body 1 can directly stand outside the machine body 1 and inspect the power cavity and the water cavity through the fourth closed door 21; and when there are idle maintenance personnel in the machine body 1, the maintenance personnel can enter the power cavity and the water cavity through the transfer cavity 19 to realize maintenance.

[0067] Still available for reference Figure 2 and Figure 4 In this cooling unit, the machine body 1 can be provided with a bottom plate frame 22, an intermediate plate frame 23 and a top plate frame 24; the bottom plate frame 22 is arranged at the bottom of the equipment cavity 14, the transfer cavity 19 and the indoor corridor 5; the intermediate plate frame 23 is arranged at the top of the equipment cavity 14, the transfer cavity 19 and the indoor corridor 5, and can also be located at the bottom of the first inspection corridor 9 and the working cavity at the same level; the top plate frame 24 is arranged at the top of the second inspection corridor 11 and the working cavity at the same level. In addition, an inspection corridor plate frame 25 is also arranged in the machine body 1; the inspection corridor plate frame 25 is separated between the first inspection corridor 9 and the second inspection corridor 11; the inspection corridor plate is located in the middle of the height direction of the heat exchange core 2. In this embodiment, an indoor fan 6 is arranged on the lower side of the middle layer frame 23, and the indoor fan 6 corresponds to the indoor heat exchange air duct 3, so the indoor heat exchange air duct 3 discharges air from the bottom; an outdoor fan 26 is arranged on the upper side of the top layer frame 24, and the outdoor fan 26 corresponds to the outdoor heat exchange air duct 4, so the outdoor heat exchange air duct 4 discharges air from the top.

[0068] The first closed door 13 can be erected between the inspection corridor frame 25 and part of the top frame 24, so that the first closed door 13 is arranged vertically, which is convenient for maintenance personnel to enter and exit, and can also play a certain load-bearing role. The second closed door 15 and the third closed door 20 and the fourth closed door 21 can all be erected between the bottom frame 22 and the middle frame 23, and have similar functions to the first closed door 13. The second closed door 15 and the third closed door 20 and the fourth closed door 21 are convenient for maintenance personnel to enter and exit, and can also play a certain load-bearing role.

[0069] The equipment cavity 14, the first maintenance corridor 9 and the second maintenance corridor 11 are arranged in layers from bottom to top on the same side of the machine body 1. In some embodiments, movable skylights are provided between the equipment cavity 14 and the first maintenance corridor 9, and between the first maintenance corridor 9 and the second maintenance corridor 11. For example, a first movable skylight 16 is provided between the equipment cavity 14 and the first maintenance corridor 9, and maintenance personnel can shuttle between the equipment cavity 14 and the first maintenance corridor 9 through the first movable skylight 16, and can enter the first maintenance corridor 9 upward from the equipment cavity 14, or can enter the equipment cavity 14 downward from the first maintenance corridor 9. A second movable skylight 17 is provided between the first maintenance corridor 9 and the second maintenance corridor 11, and maintenance personnel can shuttle between the first maintenance corridor 9 and the second maintenance corridor 11 through the first movable skylight 16, and can enter the second maintenance corridor 11 upward from the first maintenance corridor 9, or can enter the first maintenance corridor 9 downward from the second maintenance corridor 11.

[0070] Usually, two first movable skylights 16 are provided between the equipment cavity 14 and the first inspection corridor 9, and the two first movable skylights 16 are respectively located at the two ends of the bottom surface of the first inspection corridor 9. A second movable skylight 17 is provided between the first inspection corridor 9 and the second inspection corridor 11, and the second movable skylight 17 is located in the middle of the bottom surface of the second inspection corridor 11. In addition, a third movable skylight 18 is provided in the middle of the top surface of the second inspection corridor 11 for passage.

[0071] In order to facilitate passage, climbing equipment such as ladders can be installed between the equipment cavity 14 and the first maintenance corridor 9, and between the first maintenance corridor 9 and the second maintenance corridor 11. Maintenance personnel can use the climbing equipment to move up and down to enter each corresponding space.

[0072] For reference Figure 2 , Figure 6 and Figure 7 One end of the equipment chamber 14 and the transfer chamber 19 are both provided with ladders, and the top ends of the two ladders are respectively aligned with the two first movable skylights 16. Maintenance personnel can climb along the ladders from the transfer chamber 19 to the corresponding first movable skylight 16, or climb along the ladders from the equipment chamber 14 to the corresponding first movable skylight 16, and then enter the first maintenance corridor 9 upwards after opening the first movable skylight 16. Of course, maintenance personnel can also open the first movable skylight 16 in the first maintenance corridor 9, and then descend along the ladders in a step-by-step manner to the transfer chamber 19 or the equipment chamber 14.

[0073] For reference Figure 2 and Figure 4A ladder is provided in the middle of the first inspection corridor 9, and the top of the ladder is aligned with the second movable skylight 17; a ladder is provided in the middle of the second inspection corridor 11, and the top of the ladder is aligned with the third movable skylight 18. Maintenance personnel in the first inspection corridor 9 can climb to the middle of the second inspection corridor 11 through the ladder and the second movable skylight 17, and maintenance personnel in the second inspection corridor 11 can also descend to the first inspection corridor 9 through the ladder and the second movable skylight 17. Maintenance personnel in the second inspection corridor 11 can climb to the top surface of the machine body 1 through the ladder and the third movable skylight 18, and maintenance personnel on the top surface of the machine body 1 can also descend to the second inspection corridor 11 through the ladder and the third movable skylight 18.

[0074] In the above embodiment, the first movable skylight 16, the second movable skylight 17 and the third movable skylight 18 can all be set as grille plates. The grille plates can separate different spaces such as the equipment cavity 14, the first maintenance corridor 9 and the second maintenance corridor 11 to ensure the safe movement of maintenance personnel in these spaces. They can also be used as observation windows to facilitate maintenance personnel to observe the equipment status of adjacent spaces from a distance, facilitate different maintenance personnel to understand each other's coordinates, and improve the cooperation ability of different maintenance personnel. Due to the provision of the grille plates, the middle areas of the first maintenance corridor 9 and the second maintenance corridor 11 will not be completely isolated, but since they are both on the outdoor side, the provision of the grille plates does not affect the normal operation of the equipment in the heat exchange core 2, the first maintenance corridor 9 and the second maintenance corridor 11.

[0075] In the above embodiment, the outdoor air outlet chamber 42 and the two indoor air inlet chambers 31 are arranged on the same side of the second maintenance corridor 11, and are both located on the same side of the second maintenance corridor 11; the two indoor air inlet chambers 31 are both provided with a third maintenance entrance and exit 12 for maintenance personnel to enter and exit, and the second maintenance corridor 11 is connected to the two third maintenance entrances and exits 12 through the first closed door 13; the second movable skylight 17 is located in the middle of the bottom surface of the second maintenance corridor 11, and the two first closed doors 13 are respectively arranged on both sides of the second movable skylight 17.

[0076] In summary, the cooling unit provided in the present application is provided with a working chamber and a maintenance chamber in the body 1; the maintenance chamber is arranged in layers and is provided with a plurality of different maintenance entrances and exits, and the plurality of maintenance entrances and exits respectively correspond to the indoor air inlet chamber 31, the indoor air outlet chamber 32, the outdoor air inlet chamber 41, the outdoor air outlet chamber 42 and the indoor corridor 5 of the working chamber. Different maintenance entrances and exits are suitable for the maintenance operation characteristics of the respective corresponding spaces, and are arranged at specific positions in the body 1 and have specific orientations. Different maintenance entrances and exits are interconnected through adjacent cavities and corridors, providing maintenance personnel with a plurality of parallel and / or series maintenance paths in the body 1, so that maintenance personnel can easily and conveniently move to different maintenance entrances and exits, and multiple maintenance personnel can perform maintenance operations in the body 1 at the same time. In addition, the cooling unit provided in the present application improves the layout of equipment such as the compressor 10 and the indoor fan 6, and can provide sufficient installation space for the compressor 10 on the side of the indoor air outlet cavity 32, which is beneficial to optimizing the wiring paths of the various pipelines of the compressor 10 between the evaporator and the condenser; the indoor fan 6 and the indoor corridor 5 can be arranged in the same space to avoid the indoor wind and the outdoor wind from moving and intersecting due to maintenance, and it is also convenient for maintenance personnel to efficiently and conveniently perform maintenance on the indoor fan 6 and the indoor corridor 5 with the same maintenance frequency.

[0077] The cooling unit provided by the present application is introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of ​​the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A cooling unit, characterized in that: The heat exchange core (2) comprises a machine body (1) and a heat exchange core (2); the heat exchange core (2) is used to separate at least an indoor heat exchange air duct (3) and an outdoor heat exchange air duct (4) in the machine body (1); an indoor corridor (5) is provided in the machine body (1); the indoor corridor (5) and the indoor heat exchange air duct (3) are separated from each other and have an air path connected thereto; the indoor corridor (5) and the outdoor heat exchange air duct (4) are separated from each other and have an air path blocked thereto; part of the maintenance entrances and exits of the indoor heat exchange air duct (3) and the indoor fan (6) are both located in the indoor corridor (5); the maintenance entrances and exits of the outdoor heat exchange air duct (4) are located outside the indoor corridor (5).

2. The cooling unit according to claim 1, characterized in that: The indoor heat exchange air duct (3) comprises an indoor air inlet chamber (31) and an indoor air outlet chamber (32) separated on both sides of the heat exchange core (2); the maintenance entrance and exit of the indoor heat exchange air duct (3) comprises a first maintenance entrance and exit (7) for maintenance personnel to enter and exit the indoor air outlet chamber (32); the first maintenance entrance and exit (7) is arranged on the machine wall between the indoor air outlet chamber (32) and the indoor corridor (5).

3. The cooling unit according to claim 2, characterized in that: The indoor corridor (5) is located below the indoor air outlet cavity (32); the first inspection entrance (7) is arranged on the machine wall between the top of the indoor corridor (5) and the bottom of the indoor air outlet cavity (32).

4. The cooling unit according to claim 2 or 3, characterized in that: The outdoor heat exchange air duct (4) comprises an outdoor air inlet chamber (41) and an outdoor air outlet chamber (42) separated on two sides of the heat exchange core (2); the maintenance entrance and exit of the outdoor heat exchange air duct (4) comprises a second maintenance entrance and exit (8) for maintenance personnel to enter and exit the outdoor air inlet chamber (41), and the second maintenance entrance and exit (8) is located on the side of the outdoor air inlet chamber (41).

5. The cooling unit according to claim 4, characterized in that: The outdoor heat exchange air duct (4) comprises two outdoor air inlet chambers (41); a first maintenance corridor (9) is also provided in the machine body (1); the indoor air outlet chamber (32) and the two outdoor air inlet chambers (41) are both provided on one side of the first maintenance corridor (9) and are both distributed on the same floor as the first maintenance corridor (9); the two second maintenance entrances and exits (8) are respectively located at two ends of the first maintenance corridor (9) and are respectively connected to the two outdoor air inlet chambers (41).

6. The cooling unit according to claim 5, characterized in that: A plurality of compressors (10) are provided in the middle of the first maintenance corridor (9); all of the compressors (10) are centrally arranged in the middle of the first maintenance corridor (9), and all of the compressors (10) are adjacent to the side of the indoor air outlet cavity (32).

7. The cooling unit according to claim 6, characterized in that: The indoor heat exchange air duct (3) comprises two indoor air inlet chambers (31); a second maintenance corridor (11) is also provided in the machine body (1); the outdoor air outlet chamber (42) and the two indoor air inlet chambers (31) are both provided on one side of the second maintenance corridor (11), and are both distributed on the same floor as the second maintenance corridor (11); the maintenance entrance and exit of the outdoor heat exchange air duct (4) further comprises a third maintenance entrance and exit (12) for maintenance personnel to enter and exit the indoor air inlet chamber (31); each of the third maintenance entrances and exits (12) is connected to the second maintenance corridor (11) via a first closed door (13).

8. The cooling unit according to claim 7, characterized in that: An equipment cavity (14) is also provided in the machine body (1); the equipment cavity (14), the first inspection corridor (9) and the second inspection corridor (11) are arranged in layers from bottom to top on the same side of the machine body (1); the indoor corridor (5) and the equipment cavity (14) are arranged on the same layer and are connected via a second closed door (15).

9. The cooling unit according to claim 8, characterized in that: Two first movable skylights (16) for passage are provided between the equipment cavity (14) and the first maintenance corridor (9), and the two first movable skylights (16) are respectively located at two ends of the bottom surface of the first maintenance corridor (9); a second movable skylight (17) for passage is provided between the first maintenance corridor (9) and the second maintenance corridor (11), and the second movable skylight (17) is located in the middle of the bottom surface of the second maintenance corridor (11); and a third movable skylight (18) for passage is provided in the middle of the top surface of the second maintenance corridor (11).

10. The cooling unit according to claim 8, characterized in that: The equipment chamber (14) comprises an electricity chamber capable of accommodating electric control equipment and a distribution box, and a water chamber capable of accommodating a water tank and a water pump; a transfer chamber (19) connected to the equipment chamber (14) is provided at one end; the transfer chamber (19) is provided with a third closed door (20) openable to the outside; the electricity chamber and the water chamber are both provided with a fourth closed door (21) openable to the outside; the transfer chamber (19) and the indoor corridor (5) are connected via the second closed door (15).

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