GB2572829A - An air conditioning unit - Google Patents
An air conditioning unit Download PDFInfo
- Publication number
- GB2572829A GB2572829A GB1806418.8A GB201806418A GB2572829A GB 2572829 A GB2572829 A GB 2572829A GB 201806418 A GB201806418 A GB 201806418A GB 2572829 A GB2572829 A GB 2572829A
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- GB
- United Kingdom
- Prior art keywords
- condensing
- chamber
- section
- evaporating
- evaporator
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/02—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing
- F24F1/022—Self-contained room units for air-conditioning, i.e. with all apparatus for treatment installed in a common casing comprising a compressor cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/36—Modules, e.g. for an easy mounting or transport
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
An air conditioning unit comprises an evaporating section 100 having an evaporator 122 and an evaporating section fan 121, and a condensing section 200 having a condenser 231 and a condensing section fan 232. The evaporating section is formed separately from, and in use located on and vertically above, the condensing section. The condensing section may have a condensing first chamber 230 housing the condenser and the condensing section fan, a condensing second chamber 220 which connects with an evaporating first chamber 120 of the evaporating section and houses the evaporator and the evaporating section fan, and a condensing third chamber 250 connecting with the condensing first and second chambers respectively. The condensing third chamber comprises an outdoor air inlet and a communication valve 241 for controlling a connection state of the condensing first and second chambers. The condensing section may have first and second front panels 211a, 211b constituting front wall portions of the condensing second and third chambers respectively. The first front panel is detachable and located above the second front panel. The outdoor air inlet is opposite the second front panel and a compressor 244 is located in the condensing second chamber.
Description
Specification
An Air Conditioning Unit
Field of Technology
The invention relates to an air conditioning unit.
Background Technologies
The applicant of the present invention disclosed an integrated air conditioning unit in the patent document No. ZL201310421922.5, as shown in FIG. 9, a second fan assembly 6, an evaporator 5, a first fan assembly 3, a condenser 2, and a compressor 1 are installed in the housing of the integrated air conditioner unit in sequence from top to bottom in the vertical direction, a first passage for indoor air to flow through the evaporator 5 and the second fan assembly 6, and a second passage for outdoor air to flow through the condenser 2 and the first fan assembly 3 in sequence are formed in the housing 11; also provided in the housing 11 are an air valve assembly 7 which is switched between a first position that causes the first passage to connect with the outdoor side to introduce the outdoor air, a second position that causes the first passage to connect with the indoor side to introduce the indoor air and a position interposed between the first position and the second position to introduce the outdoor air and indoor air; an outdoor air inlet is provided at the bottom of the housing of the integrated air conditioning unit, and the compressor 1 is installed at the bottom of the housing of the integrated air conditioning unit.
However, many problems have arisen in the use of the abovementioned integrated air conditioning unit, and specifically include:
First, the air conditioning unit is a monolithic structure, which has a large size and volume, which makes production, handling, and installation difficult;
Second, because the compressor 1 is installed at the bottom of the housing of the integrated air conditioning unit, and the outdoor air inlet is also opened at the bottom of the housing of the air conditioning unit, when the air conditioning unit adopts an installation mode wherein the outdoor air inlet is arranged under the floor in an equipment room, the compressor also sinks under the floor, which is not conducive to the maintenance of the compressor, resulting in an increased difficulty in maintaining the compressor.
In view of the above problems, the applicant of the present invention has improved the air conditioning unit.
Invention Description
In view of this, the main object of the present invention is to provide an air conditioning unit capable of reducing installation difficulty and maintenance difficulty.
In order to achieve the above object, the present invention provides an air conditioning unit, comprising an evaporating section with an evaporator and an evaporating section fan, a condensing section with a condenser and a condensing section fan, the two sections being separated and vertically assembled together from top to bottom.
With this solution, since the condensing section and the evaporating section are provided separately, the production, handling, and installation are convenient.
Preferably, the condensing section has a condensing first chamber for mounting the condenser and the condensing section fan, a condensing second chamber for connecting with a chamber of the evaporating section for mounting the evaporator and the evaporating section fan, and a condensing third chamber respectively connecting with the two chambers, an outdoor air inlet is provided in the condensing third chamber, and a communication valve for controlling a connection state of the condensing first chamber and the condensing second chamber is installed in the condensing third chamber.
With this solution, outdoor fresh air enters the condensing third chamber first via the outdoor air inlet, and then enters the condensing first chamber via the condensing third chamber, it can be controlled that whether outdoor fresh air enters the condensing second chamber by controlling the on-off state of the communication valve. In this way there is no need to separately arrange an outdoor air inlet in the condensing section for outdoor fresh air to enter the condensing second chamber, and when the air conditioning unit is installed, it is also avoided that a hole separately connecting with the condensing second chamber is provided in the wall of the equipment room, which is advantageous for simplifying the internal structure of the air conditioning unit, reducing the installation difficulty, and simplifying the installation process.
Preferably, the condensing section has a first front panel located above and constituting a front wall portion of the condensing second chamber, and a second front panel located below and constituting a front wall portion of the condensing third chamber, the outdoor air inlet is opposite to the second front panel; a compressor is installed in the condensing second chamber; the first front panel and the condensing section main body are detachable.
With this solution, when the air conditioning unit adopts an installation mode wherein the outdoor air inlet is arranged under the floor in an equipment room, the compressor does not sink into the floor, which facilitates a frontal maintenance of the compressor and is beneficial to reducing the difficulty of maintaining the compressor.
Preferably, evaporator pipelines for connecting the compressor and the evaporator and for circulation of a refrigerant comprise an evaporator first pipeline installed in the evaporating section, an evaporator second pipeline installed in the condensing section, and an evaporator third pipeline connecting both; the three pipelines are disconnected, both ends of the evaporator third pipeline are in threaded connection with the evaporator first pipeline and the evaporator second pipeline.
With this solution, it is possible to simplify the installation process of the evaporator pipelines during the installation of the air conditioning unit and to reduce its installation difficulty. Meanwhile, the air tightness and stability of connection between the three pipelines can be ensured.
Preferably, the evaporating section has an evaporating third chamber at the front side thereof, a front wall portion of the evaporating third chamber is composed of a front panel of the evaporating section; the evaporator first pipeline is disposed in the evaporating third chamber; the front panel of the detachable evaporating section is mounted on the evaporating unit main body.
With this solution, after opening the front panel of the evaporating section, the maintenance staff can directly or easily sees the evaporator first pipeline, which can achieve full frontal maintenance and reduce maintenance difficulty. Meanwhile, maintenance space around the air conditioning unit can be omitted, and the installation space occupied by the air conditioning unit can be reduced.
Preferably, an electronic control box is installed in the evaporating third chamber.
With this solution, after opening the front panel of the evaporating section, the maintenance staff can directly or easily sees the electronic control box, which can achieve full frontal maintenance and reduce maintenance difficulty.
Preferably, the compressor and the evaporator second pipeline are disposed in the condensation second chamber and located at the front side thereof.
With this solution, after opening the front panel of the evaporating section, the maintenance staff can directly or easily see the compressor and the evaporator second pipeline, which can achieve full frontal maintenance and reduce maintenance difficulty. Meanwhile, maintenance space around the air conditioning unit can be omitted, and the installation space occupied by the air conditioning unit can be reduced.
Preferably, a condenser pipeline for connecting the compressor with the condenser, and other refrigeration system accessories are provided in the condensing second chamber and disposed near the front side thereof.
With this solution, after opening the front panel of the evaporating section, the maintenance staff can directly or easily see the condenser pipeline and other refrigeration system, which can achieve full frontal maintenance and reduce maintenance difficulty. Meanwhile, maintenance space around the air conditioning unit can be omitted, and the installation space occupied by the air conditioning unit can be reduced.
Preferably, an indoor air supply outlet is arranged in an upper portion of the front panel of the evaporating section and an indoor return air inlet is arranged in the first front panel of the condensing section.
With this solution, the spacing distance between the indoor return air inlet and the indoor air supply outlet can be increased, which effectively prevents the low-temperature air entering the equipment room through the indoor air supply outlet from re-entering the air conditioning unit through the indoor return air inlet before exchanging heat with the air in the equipment room and is beneficial to grantee the cooling effect of the air in the equipment room.
Preferably, an excess pressure exhaust outlet for discharging indoor air to the outdoors is provided at an upper portion of a rear panel of the evaporating section, an exhaust outlet for discharging the air flowing through the condenser to the outdoors is arranged at a middle upper portion of a rear panel of the condensing section, the outdoor air inlet is located at the bottom of the rear panel of the condensing section.
With this solution, the spacing distance from both of the exhaust outlet and the excess pressure exhaust outlet to the outdoor air inlet opening in the longitudinal direction can be increased, the indoor high-temperature air discharged through the exhaust outlet and the excess pressure exhaust outlet usually floats above due to its high temperature, and the outdoor fresh air usually sinks below due to its low temperature, in this way it can effectively prevent indoor exhaust air from re-entering the unit through outdoor fresh air inlet, resulting in reduced cooling effect.
Description of the Drawings
Figure 1 is a front view of two sections of an air conditioning unit in a disassembled state;
Figure 2 is a front view of two sections of an air conditioning unit in an assembled state;
Figure 3 is a left view of the air conditioning unit shown in Figure 2;
Figure 4 is a left view of the air conditioning unit installed on the floor of an equipment room;
Figure 5 is a left view of the air conditioning unit installed on the floor of the equipment room, using a frontal air supply method;
Figure 6 is a left view of the air conditioning unit installed on the floor of the equipment room, using a top air supply method;
Figure 7 is a schematic view of the internal structure of the air conditioning unit in a disassembled state, which is a left view;
Figure 8 is a schematic view of the internal structure of the air
Ί conditioning unit in the mounting mode shown in Figure 5, which is a left view;
Figure 9 is a schematic view of an air conditioning unit in existing technology.
Specific Implementation
Hereinafter, specific embodiments of the air conditioning unit of the present embodiment will be described in detail with reference to Figs. 1 to
8. In the following description, the side of the air conditioning unit near the wall is the “rear” side, the side opposite to the wall is the “front” side, the side in contact with the ground is “lower” side, and the side opposite to the ground is the “upper” side, when an user is facing the front panel of the air conditioning unit, the left and right sides of the air conditioning unit are the left and right sides relative to the user.
As shown in Fig. 1 to Fig. 3, the air conditioning unit of the present embodiment mainly includes an evaporating section 100 and a condensing section 200 that are separately provided. These two sections each have a shape of cuboid. When the air conditioning unit is in an assembled state, the foregoing two sections are sequentially combined together from top to bottom in the vertical direction and respectively aligned in the front-rear direction and in the left-right direction. The specific structure of the foregoing two sections will be described in detail below.
Evaporating section 100
As shown in Fig. 1 to Fig. 3 and Fig. 7 to Fig. 8, the evaporating section 100 is in cuboid shape as a whole and has a cuboid-shaped evaporating section housing 110. The evaporating section housing 110 mainly includes a cuboid-shaped supporting frame and multiple panels mounted on the surface of the supporting frame, wherein the front panel 111 of the evaporating section 100 is detachably mounted on the main frame of the evaporating section housing 110. As shown in Fig. 7 and Fig. 8, the internal space of the evaporating section housing 110 is partitioned into an evaporating first chamber 120 at the front side and an evaporating second chamber 130 at the rear side.
As shown in Fig. 1 and Fig. 2, an indoor air supply outlet 112 connecting with the evaporating first chamber 120 is arranged in the upper portion of the front panel 111, and a heating device 117 for heating the air flowing through the indoor air supply outlet 112 is installed on the evaporating section housing 110. As shown in Fig. 3, the side panel 115 of the evaporating section housing 110 is provided with an excess pressure exhaust outlet 116 at its rear portion and connecting with the evaporating second chamber 130, which is used to connect the room with the evaporating second chamber 130. Provided on the rear panel 113 of the evaporating section housing 110 is an excess pressure exhaust outlet (not shown in the figure) located at an upper portion thereof and connecting with the evaporating second chamber, this excess pressure exhaust outlet is used to connect the evaporating second chamber 130 with the outdoors. An excess pressure exhaust valve 114 is installed on the excess pressure exhaust outlet. In addition, an evaporating section first opening (not shown in the figure) connecting with the evaporating first chamber is also arranged at the bottom of the evaporating section housing 110.
As shown in Fig. 7 and Fig. 8, an evaporating section fan 121 and an evaporator 122 are arranged in the evaporating first chamber 120 in sequence from top to bottom, the inlet side of the evaporator 122 connects with the evaporating first opening, and the outlet side thereof connects with the inlet side of the evaporating section fan 121, the outlet side of the evaporating section fan 121 connects with the indoor air outlet 112. The evaporator 122 consists of two finned heat exchangers symmetrically arranged in a “V” shape when it is viewed from the side (the left sides in both of Fig. 7 and Fig. 8) of the air conditioning unit, and the top of the Vshaped structure is hermetically connected to the inner wall surfaces of the front and rear sides of the evaporating first chamber 120. In the present embodiment, by arranging the evaporator 122 in a V shape, the heat exchange area of the evaporator 122 can be sufficiently increased in a limited space, which is advantageous in improving the heat dissipation and reducing the airflow resistance. The evaporating section fan 121 is a centrifugal fan that axially intakes the air and radially supplies the air. The evaporating section fan 121 is located above the evaporator 122, and the outdoor air inlet of the evaporating section fan 121 is just facing the opening at the top of the V-shaped structure of the evaporator 122. In this way, it can be ensured that the low-temperature air generated during heat exchange in the evaporator 122 are all sent to the room via the indoor air supply outlet under suction by the evaporating section fan 121 in case of loss in cooling capacity.
In addition, as shown in Fig. 7 to Fig. 8, an evaporating third chamber 140 partitioned from the evaporation section housing 110 is provided at the front side thereof, and an electronic control box 141 and an evaporator first pipeline 142 connecting the following compressor 244 and the evaporator 122 for circulating a refrigerant are provided in the evaporating third chamber 140. An evaporating section second opening (not shown in the figure) connecting with the evaporating third chamber 140 is also arranged at the bottom of the evaporating section housing 110. As shown in Fig. 7 and Fig. 8, the electric box 141 and the evaporator first pipeline 142 are provided on the front side of the evaporating section 100, thereby the electric box 141 and the evaporator first pipeline 142 can be accessed when opening the front panel 111 of the evaporating section 100 during maintenance, so that complete maintenance from the front can be achieved.
Condensing section 200
As shown in Fig. 1 to Fig. 3 and Fig. 7 to Fig. 8, the condensing section 200 is in cuboid shape as a whole and has a cuboid-shaped condensing section housing 210. The condensing section housing 210 mainly includes a cuboid-shaped supporting frame and multiple panels mounted on the surface of the supporting frame. The internal space of the condensing section housing 210 is partitioned into an condensing section first chamber 230 located at the rear side, an condensing second chamber 220 located at the front side, and an condensing third chamber 250 located below the aforementioned two chambers, wherein the upper portion of the condensing third chamber 250 has two openings arranged in the front-rear direction, the opening at the front side connects the condensing third chamber 250 with the condensing second chamber 220, and the opening at the rear side connects the condensing third chamber 250 with the condensing section first chamber 230. A communication valve 241 is installed in the condensing third chamber 250, and the communication valve 241 is used to control the connection state of the condensing first chamber 230 and the condensing second chamber 220. The front panel 211 of the condensing unit 200 is composed of a first front panel 211a located above and corresponding to the condensing second chamber 220, and a second front panel 211b located below and corresponding to the condensing third chamber 250. The two panels are detachably mounted on the main frame of the condensing unit housing 210.
An exhaust outlet located at an upper portion and an outdoor air inlet located at a lower portion are arranged in the rear panel 215 of the condensing section housing 210, wherein the exhaust outlet connects the condensing first chamber with the outdoors to discharge the hightemperature air in the condensing first chamber 230, the exhaust valve 216 is installed at the exhaust outlet on the rear panel 215 of the condensing section housing 210; the outdoor air inlet connects the condensing third chamber 250 with the outdoors and is used for the outdoor fresh air to enter the condensing section 200, and an air inlet valve 217 is installed at the outdoor air inlet.
A condenser 231 and a condensing section fan 232 are arranged in the condensing section first chamber 230 in sequence from top to bottom. As shown in Fig. 7 to Fig. 8, the condenser 231 consists of two finned heat exchangers symmetrically arranged in a “V” shape when it is viewed from the side (the left sides in both of Fig. 7 and Fig. 8) of the air conditioning unit, and the top of the V-shaped structure is hermetically connected to the inner wall surfaces of the front and rear sides of the condensing section first chamber 230. In the present embodiment, by arranging the condenser 231 in a V shape, the heat exchange area of the condenser 231 can be sufficiently increased in a limited space, which is advantageous in improving the heat dissipation and reducing the airflow resistance. The condensing section fan 232 is a centrifugal fan that axially intakes the air and radially supplies the air. The condensing section fan 232 is located above the condenser 231, and the outdoor air inlet of the condensing section fan 232 is just facing the opening at the top of the V-shaped structure of the condenser 231. In this way, it can be ensured that the hightemperature air generated during heat exchange in the condenser 231 is completely discharged to the outdoors through the exhaust outlet under suction of the condensing section fan 232.
The first front panel 211a of the condensing section 200 is provided with an indoor return air inlet 212 located at the upper portion and connecting with the condensing second chamber 220. The indoor return air inlet 212 connects indoor space with the condensing second chamber 220. A return air valve 213 is installed at the indoor return air inlet 212 in the condensing section housing 210. A condensing section first opening 214 is arranged at the top of the condensing section housing 210. A medium12 efficiency filter 242 and a first preliminary filter 243 arranged in sequence from top to bottom are installed at the condensing section first opening 214 in the condensing unit housing 210.
Installed in the condensing second chamber 220 are a compressor 244, an evaporator second pipeline 245 for connecting the compressor 244 with the evaporator 122 and for circulation of a refrigerant, a condenser pipeline
246 for connecting the compressor 244 with the condenser 231, and other refrigeration system accessories. As shown in Fig. 7 and Fig. 8, the compressor 244, the evaporator second pipeline 245, the condenser pipeline 246 and other refrigeration system accessories are provided on the front side of the condensing second chamber 220, thereby the compressor 244, the evaporator second pipeline 245, the condenser pipeline 246 and other refrigeration system accessories can be accessed when opening the front panel 21 la of the condensing section 200 during maintenance, so that complete maintenance from the front can be achieved.
In addition, as shown in Fig. 7 and Fig. 8, a second preliminary filter
247 for filtering the air flowing through the condenser 231 is installed at the connection between the condensing first chamber 230 and the condensing third chamber 250, a third preliminary filter 248 for filtering the air entering the condensing second chamber 220 is installed at the connection between the condensing second chamber 220 and the condensing third chamber 250. In the present embodiment, the first preliminary filter 243, the second preliminary filter 247, and the third preliminary filter 248 are all nylon mesh filters.
Specifically, the air conditioning unit further includes an evaporator third pipeline 143 (not shown in the drawing). The evaporator third pipeline 143, the evaporator second pipeline 245, and the evaporator first pipeline 142 are all disconnected, when evaporating section 100 and the condensing section 200 are in the assembled state, the upper end of the evaporator third pipeline 143 is in threaded connection with the evaporator first pipeline 142 and the lower end thereof is in threaded connection with the evaporator second pipeline 245. The three pipelines together constitute a pipeline for the refrigerant to flow between the compressor 244 and the evaporator 122. The aforementioned three pipelines include two branch pipes, one for the low-temperature refrigerant to enter the evaporator 122 from the compressor 244, and the other for the high-temperature refrigerant to return to the compressor 244 from the evaporator 122. In addition, stop valves 144 are provided on both branch pipes of the evaporator first pipeline 142 and of the evaporator second pipeline 245, so that the vacuum degree of the refrigeration system and the refilling amount of the refrigerant in the production process can be accurately controlled.
When the air conditioning unit is in the assembled state, both the evaporating section 100 and the condensing section 200 are assembled together from top to bottom. In this state, the evaporating section first opening connects with the condensing section first opening, such that the evaporating section first chamber 120 connects with the condensing section second chamber 220. As viewed from the side of the air conditioning unit, connecting pipelines (including the evaporator first pipeline 142, the evaporator third pipeline 143, and the evaporator second pipeline 245) for connecting the compressor 244 with the evaporator 122 are mainly arranged along the vertical direction in the evaporating third chamber 140 and in the condensing section second chamber 220 and are located on the front sides of the two chambers.
In the following, in combination with the above description of the structure, the installation manner of the air conditioning unit will be briefly described with reference to Figs. 4 to 6.
The air conditioning unit of this embodiment is generally disposed in a data center room and is generally arranged close to the wall 300 of the data center room, as shown in Fig. 4 to Fig. 6, the wall 300 is provided with a first opening 310, a second opening 320, and a third opening 330, which are provided from top to bottom in sequence. When the air conditioning unit is in the installed state, the first opening 310 connects with the excess pressure exhaust outlet, the second opening 320 connects with the exhaust outlet, and the third opening 330 connects with the outdoor air inlet.
As shown in Fig. 4, the air conditioning unit is placed in the equipment room in a way that the unit as a whole is placed on the floor 400 of the equipment room. In this installation mode, the outdoor air inlet of the air conditioning unit is located above the floor 400 of the equipment room. This installation mode is suitable for the equipment room with a larger space.
As shown in Fig. 5 and Fig. 6, the air conditioning unit can also be placed in the equipment room such that the bottom thereof is placed under the floor 400 of the equipment room. In this installation mode, the bottom of the air conditioning unit sinks down and is placed below the floor 400 of the equipment room, the outdoor air inlet of the air conditioning unit is also located below the floor 400 of the equipment room. This installation mode is suitable for the equipment room with a smaller space. In particular, in the present embodiment, since the front panel 211 of the condensing section 200 is divided into the first front panel 211a corresponding to the condensing second chamber 220 and the second front panel 211b corresponding to the condensing third chamber 250, and the compressor 244 is installed in the condensing second chamber 220, when the air conditioning unit adopts the installation manner of Fig. 5 to Fig. 6, it is convenient for maintenance of the compressor 244.
In addition, in Fig. 4 and 5, air is blown into the room through the indoor air supply outlet 112 from the front panel. However, the present invention is not limited thereto. As shown in Fig.6, the front panel 111 of the evaporation section 100 and its top panel may be replaced, air supply from the top can be achieved by installing an air duct 500 at the top of the evaporation section 100.
It can be seen that by adopting the air conditioning unit of the present embodiment, the air supply mode and installation mode of the air conditioning unit can be altered, so that a proper air supply mode and a proper installation mode can be selected according to the installation environment such as the building structure of the data center room, equipment layout and the like.
With reference to the above description of the structure, the working principle of the air conditioning unit will be briefly described with reference to Fig. 8.
According to various conditions such as indoor and outdoor temperatures, the air conditioning unit of the present invention mainly has the following three operation modes:
1. Completely mechanical cooling mode
When the outdoor temperature is higher than the indoor temperature, the air conditioning unit is operated in the mechanical cooling mode.
The excess pressure exhaust valve 114 and the communication valve 241 are closed; the air inlet valve 217, the exhaust valve 216 and the return air valve 213 are opened, and the evaporating section fan 121, the condensing section 232 and the compressor 244 are operated.
Under suction of the evaporating section fan 121, the indoor return air enters the condensing second chamber 220 via the return air valve 213, and flows through the first preliminary filter 243, the medium-efficiency filter 242, the condensing section first opening 214 and the evaporating section first opening in sequence and then enters the evaporating first chamber
120, flows through the evaporator 122 to exchange heat with the lowtemperature refrigerant circulating in the evaporator 122, and converted into low-temperature air, and the low-temperature air flows through the evaporating section fan 121 and enters indoor space via the indoor air outlet 112.
Under suction of the condensing section fan 232, the outdoor fresh air enters the condensing third chamber 250 and the condensing first chamber 230 via the air inlet valve 217, and flows through the second preliminary filter 247 and the condenser 231 in sequence and exchanges heat with the high-temperature refrigerant circulating in the condenser 231 when flowing through the condenser 231 and converted into high-temperature air, and the high-temperature air flows through the condensing section fan 232 and is discharged to the outdoors via the exhaust valve 216.
2. Completely fresh-air free cooling
When the outdoor ambient temperature meets the free cooling conditions, the air conditioning unit is operated in a free cooling mode.
The exhaust valve 216 and the return air valve 213 are closed; the air inlet valve 217, the communication valve 241, and the excess pressure exhaust valve 114 are opened, and the evaporating section fan 121 is operated and the compressor 244 is closed.
Under suction of the evaporating section fan 121, the outdoor fresh air enters the condensing second chamber 220 via the air inlet valve 217, the condensing third chamber 250, and the communication valve 241, and flows through the third preliminary filter 248, the compressor 244, the first preliminary filter 243, the medium-efficiency filter 242, the condensing section first opening 214 and the evaporating section first opening in sequence and then enters the evaporating first chamber 120, and flows through the evaporator 122 and the evaporating section fan 121, and enters the indoor via the excess pressure exhaust valve 114; meanwhile, under the positive pressure of the indoor air, the indoor warm air enters the evaporating second chamber 130 via the excess pressure inlet 116 and is discharged to the outdoors through the excess pressure exhaust valve 114
In addition, when the outdoor temperature is relatively low, the supply air temperature can also be adjusted by opening the return air valve 213. Specifically, the proportions of indoor return air and outdoor inlet air can be adjusted by adjusting the ratio of opening degrees of the communication valve 241 and the return air valve 213 so as to ensure that the supply air temperature is within a reasonable range.
3. Partially free cooling mode
When the outdoor temperature is in a certain suitable range, the unit is operated in a partially free cooling mode. The air inlet valve 217, the communication valve 241, the return air valve 213, the exhaust valve 216, and the excess pressure exhaust valve 114 are opened, and the evaporating section fan 121, the condensing section fan 232 and the compressor 244 are operated.
Under suction of the evaporating section fan 121, the outdoor fresh air enters the condensing second chamber 220 via the air inlet valve 217 and the communication valve 241, the indoor return air enters the condensing second chamber 220 via the return air valve 213, the outdoor fresh air and the indoor return air are mixed in the condensing second chamber 220 and then flows through the first preliminary filter 243, the medium-efficiency filter 242, the condensing section first opening 214 and the evaporating section first opening in sequence and then enters the evaporating first chamber 120, flows through the evaporator 122 to exchange heat with the low-temperature refrigerant circulating in the evaporator 122 and converted into low-temperature air, and the low-temperature air flows through the evaporating section fan 121 and enters indoor space via the indoor air outlet 112;
Under suction of the condensing section fan 232, the outdoor fresh air enters the condensing first chamber 230 via the air inlet valve 217 and the condensing third chamber 250, and flows through the second preliminary filter 247 and the condenser 231 in sequence, and exchanges heat with the high-temperature refrigerant circulating in the condenser 231 when flowing through the condenser 231 and converted into high-temperature air, and the high-temperature air flows through the condensing section fan 232 and is discharged to the outdoors via the exhaust valve 216; meanwhile, under the positive pressure of the indoor air, the indoor warm air enters the evaporating second chamber 130 via the excess pressure inlet 116 and is discharged to the outdoors through the excess pressure exhaust valve 114 .
Form the above, it can be seen that by controlling the opening and closing states of the air inlet valve 217, the communication valve 241, the return air valve 213, the exhaust valve 216, the excess pressure exhaust valve 114, the evaporating section fan 121, the condensing section 232 and the compressor 244, the air conditioning unit can be switched into a mechanical cooling mode, a free cooling mode, or a partially free cooling mode so as to effectively use outdoor natural cold source in the winter and in a transition season having low outdoor air temperature to reduce the temperature of the data center room, which is beneficial to improve the flexibility of operation mode of the air conditioning unit and save energy. In addition, by controlling the opening and closing states of the five air valves, i.e. the air inlet valve 217, the communication valve 241, the return air valve 213, the exhaust valve 216 and the excess pressure exhaust valve 114, an independent introduction of fresh air and an independent air discharge can also be achieved. In addition, the aforementioned plurality of air valves are all electric air valves, and each air valve only has air flowing in a single direction, ensuring that each air valve is operated smoothly and without noise, and loss in wind amount and cooling capacity caused by the cross-over of air between various air flows can be avoided.
From the above, the air conditioning unit of the present invention mainly has the following technical effects:
First, as shown in Fig. 1, the overall structure of the air conditioning unit is divided into the condensing section 200 and the evaporating section 100 which are separately provided, which makes the production, handling and installation convenient.
Second, since the compressor 244, the evaporator second pipeline 245, the condenser pipeline 246 and other refrigeration system accessories are all provided on the front side of the condensing second chamber 220, the front panel 211a of the condensing section 200 is detachable; the electric control box 141 and the evaporator first pipeline 142 are both located on the front side of the evaporating section 100, the front panel 111 of the evaporating section 100 is detachable; these aforementioned parts can be accessed when opening the front panels (i.e. front panels of each section) of the air conditioning unit during maintenance, so that complete maintenance from the front can be achieved and maintenance difficulty can be reduced.
Third, as shown in Fig. 3, 7 and 8, since the indoor air supply outlet 112 is arranged in an upper portion of the air conditioning unit and the indoor return air inlet 212 is arranged in a middle portion of the air conditioning unit, the spacing distance between the indoor return air inlet 212 and the indoor air supply outlet 112 can be increased, which effectively prevents the low-temperature air entering the equipment room through the indoor air supply outlet from re-entering the air conditioning unit through the indoor return air inlet before exchanging heat with the air in the equipment room and is beneficial to grantee the cooling effect of the air in the equipment room.
Fourth, as shown in Fig. 3, 7 and 8, since the outdoor fresh air inlet is located at an lower portion of the air conditioning unit, an exhaust outlet is located at an middle portion of the air conditioning unit, the excess pressure exhaust outlet is located at an upper portion of the air conditioning unit, the spacing distance between both of the exhaust outlet and the excess pressure exhaust outlet and the outdoor air inlet opening in the longitudinal direction can be increased, the indoor = air discharged through the exhaust outlet and the excess pressure exhaust outlet usually floats above due to its high temperature, and the outdoor fresh air usually sinks below due to its low temperature, in this way it can effectively prevent indoor exhaust air from re-entering the unit through outdoor fresh air inlet, resulting in reduced cooling effect.
Fifth, multiple air filters (preliminary filter and medium-efficiency filter) are installed inside the air conditioning unit. Under different operating modes, the air conditioning unit can filter the indoor air and the air introduced from the outdoors into the indoors with multiple layers, reducing indoor air pollution and cleaning times of heat exchanger.
The foregoing descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the scope of protection of the present invention.
Claims (9)
1. An air conditioning unit, comprising an evaporating section (100) with an evaporator (122) and an evaporating section fan (121), a condensing section (200) with a condenser (231) and a condensing section fan (232), the two sections being separated and vertically assembled together from top to bottom.
2. The air conditioning unit according to claim 1, wherein the condensing section (200) has a condensing first chamber (230) for mounting the condenser (231) and the condensing section fan (232), a condensing second chamber (220) for connecting with a chamber of the evaporating section (100) for mounting the evaporator (122) and the evaporating section fan (121), and a condensing third chamber (250) respectively connecting with the two chambers, an outdoor air inlet is provided in the condensing third chamber (250), and a communication valve (241) for controlling a connection state of the condensing first chamber (230) and the condensing second chamber (220) is installed in the condensing third chamber (250).
3. An air conditioning unit according to claim 2, wherein the condensing section (200) has a first front panel (211a) located above and constituting a front wall portion of the condensing second chamber (220) and a second front panel (211b) located below and constituting a front wall portion of the condensing third chamber (250), the outdoor air inlet is opposite to the second front panel (21 lb);
a compressor (244) is installed in the condensing second chamber (220);
the first front panel (211a) and the condensing section main body are detachable.
4. The air conditioning unit according to claim 3, wherein evaporator pipelines for connecting the compressor (244) with the evaporator (122) and for circulation of a refrigerant comprise an evaporator first pipeline (142) installed in the evaporating section (100), an evaporator second pipeline (245) installed in the condensing section (200), and an evaporator third pipeline (143) connecting both, the three pipelines are disconnected, both ends of the evaporator third pipeline (143) are in threaded connection with the evaporator first pipeline (142) and the evaporator second pipeline (245).
5. The air conditioning unit according to claim 4, wherein the evaporating section (100) has an evaporating third chamber (140) at the front side thereof, a front wall portion of the evaporating third chamber (140) is composed of a front panel portion (111) of the evaporating section (100);
the evaporator first pipeline (142) is disposed in the evaporating third chamber (140);
the front panel (111) of the evaporating section (100) is detachably mounted on the evaporating unit main body.
6. The air conditioning unit according to claim 5, wherein an electric control box (141) is installed in the evaporating third chamber (140).
7. The air conditioning unit according to claim 4, wherein the compressor (244) and the evaporator second pipeline (245) are disposed in the condensation second chamber (220) and located at the front side thereof.
8. The air conditioning unit according to claim 7, wherein a condenser pipeline (246) for connecting the compressor (244) with the condenser (231) and other refrigeration system accessories are provided in the condensing second chamber (220) and positioned near the front side thereof.
9. The air conditioning unit according to claim 1, wherein an excess pressure exhaust outlet for discharging indoor air to the outdoors is provided at an upper portion of a first rear panel (113) of the evaporating section (100), an exhaust outlet for discharging the air flowing through the condenser (231) to the outdoors is arranged at an upper portion of a second rear panel (215) of the condensing section (200), the outdoor air inlet is located at the lower portion of the second rear panel (215) of the condensing section (200).
Intellectual
Property
Office
Application No: GB1806418.8
Examiner:
Ms Janet Kohler
Claims searched: 1-10
Date of search: 23 August 2018
Patents Act 1977: Search Report under Section 17
Documents considered to be relevant:
Category
Relevant to claims
Identity of document and passage or figure of particular relevance
X
1
CN 103528133 A
(AIRSYS REFRIGERATION ENGINEERING) See figure 5 and WPI Abstract Accession No. 2014-E90688.
X
1
US 4987952 Al
(DUMONT HOLDING COMPANY) See figure 3 and column 3, lines 17-28.
X
1
US 2006/086124 Al
(SELLERS) See figures and paragraphs [0015]-[0017],
X
1
US 3802216 Al
(TEXAS ENG SALES CO) See figures 3-6 and column 2, lines 29-39.
X
1
DE 20313048 U
(WEISS KLIMATECHNIK GMBH) See figure 1, WPI Abstract Accession No. 2004-284503 and paragraph [0017]
X
1
EP 1271064 A2
(UNGARELLI) See figures, paragraph [0001], last sentence, and paragraph [0002],
Categories:
X
Document indicating lack of novelty or inventive step
A
Document indicating technological background and/or state of the art.
Y
Document indicating lack of inventive step if
P
Document published on or after the declared priority date but
combined with one or more other documents of
before the filing date of this invention.
same category.
&
Member of the same patent family
E
Patent document published on or after, but with priority date
earlier than, the filing date of this application.
Field of Search:
Search of GB, EP, WO & US patent documents classified in the following areas of the UKCX :
Worldwide search of patent documents classified in the following areas of the IPC____________
F24F____________________________________________________________
The following online and other databases have been used in the preparation of this search report EPODOC, WPI, Patent Fulltext
9. The air conditioning unit according to claim 3, wherein an indoor air supply outlet (112) is arranged in an upper portion of the front panel (111) of the evaporating section (100), and an indoor return air inlet (212) is arranged in the first front panel (211a) of the condensing section (200).
10. The air conditioning unit according to claim 2, wherein an excess pressure exhaust outlet for discharging indoor air to the outdoors is provided at an upper portion of a rear panel (215) of the evaporating section (100), an exhaust outlet for discharging the air flowing through the condenser (231) to the outdoors is arranged at a middle upper portion of a rear panel (215) of the condensing section (200), the outdoor air inlet is located at the bottom of the rear panel (215) of the condensing section (200).
Amendments to the claims have been made as follows:
Claims
22 08 19
1. An air conditioning unit, comprising an evaporating section (100) with an evaporator (122) and an evaporating section fan (121), a condensing section (200) with a condenser (231) and a condensing section fan (232), the evaporating section (100) and the condensing section (200) being separate from each other, and the evaporating section (100) being mounted above the condensing section, wherein the condensing section (200) has a condensing first chamber (230) in which the condenser (231) and the condensing section fan (232) are mounted, a condensing second chamber (220) which connects with a chamber of the evaporating section (100) in which the evaporator (122) and the evaporating section fan (121) are mounted, and a condensing third chamber (250) respectively connecting with the two condensing chambers, and wherein an outdoor air inlet is provided in the condensing third chamber (250), and a communication valve (241) is installed in the condensing third chamber (250) for controlling a connection state of the condensing first chamber (230) and the condensing second chamber (220).
2. An air conditioning unit according to claim 1, wherein the condensing section (200) has a first front panel (211a) located in an upper part of the condensing section (200) and constituting a front wall portion of the condensing second chamber (220) and a second front panel (211b) located in a lower part of the condensing section (200) and constituting a front wall portion of the condensing third chamber (250),
22 08 19 the outdoor air inlet is opposite to the second front panel (211b);
a compressor (244) is installed in the condensing second chamber (220);
the first front panel (211 a) and a condensing section main body are detachable.
3. The air conditioning unit according to claim. 2, wherein evaporator pipelines for connecting the compressor (244) with the evaporator (122) and for circulation of a refrigerant comprise an evaporator first pipeline (142) installed in the evaporating section (100), an evaporator second pipeline (245) installed in the condensing section (200), and an evaporator third pipeline (143) connecting both, the first, second and third pipelines (142, 245, 143) are disconnectable; and when evaporating section 100 and the condensing section 200 are in the assembled state, both ends of the evaporator third pipeline (143) are in threaded connection with the evaporator first pipeline (142) and the evaporator second pipeline (245).
4. The air conditioning unit according to claim 3, wherein the evaporating section (100) has an evaporating first chamber (120), an evaporating second chamber (130), and an evaporating third chamber (140), the evaporating third chamber (140) being positioned at a front side thereof, and a front wall portion of the evaporating third chamber (140) being composed of a front panel portion (111) of the evaporating section (100);
the evaporator first pipeline (142) is disposed in the evaporating third chamber (140);
the front panel (111) of the evaporating section (100) is detachably mounted on the evaporating unit main body.
22 08 19
5. The air conditioning unit according to claim 4, wherein an electric control box (141) is installed in the evaporating third chamber (140).
6. The air conditioning unit according to claim 3, wherein the compressor (244) and the evaporator second pipeline (245) are disposed in the condensing second chamber (220) and located at a front side of the condensing second chamber (220).
7. The air conditioning unit according to claim 6, wherein a condenser pipeline (246) for connecting the compressor (244) with the condenser (231) and other refrigeration system accessories is provided in the condensing second chamber (220) and positioned on the front side of the condensing second chamber (220).
8. The air conditioning unit according to claim 2, wherein an indoor air supply outlet (112) is arranged in an upper portion of the front panel (111) of the evaporating section (100), and an indoor return air inlet (212) is arranged in the first front panel (211a) of the condensing section (200).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810285061.5A CN108458419A (en) | 2018-04-02 | 2018-04-02 | Air-conditioner set |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB201806418D0 GB201806418D0 (en) | 2018-06-06 |
| GB2572829A true GB2572829A (en) | 2019-10-16 |
| GB2572829B GB2572829B (en) | 2020-04-08 |
Family
ID=62236034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1806418.8A Active GB2572829B (en) | 2018-04-02 | 2018-04-19 | An air conditioning unit |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108458419A (en) |
| GB (1) | GB2572829B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL2027246B1 (en) * | 2020-12-30 | 2022-07-21 | Air Supplies Holland B V | Assembly for constructing a climate control unit, climate control unit and system comprising the same |
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- 2018-04-19 GB GB1806418.8A patent/GB2572829B/en active Active
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| US3802216A (en) * | 1971-09-24 | 1974-04-09 | Texas Eng Sales Co | Portable air conditioner and heating unit |
| US4987952A (en) * | 1990-04-26 | 1991-01-29 | Dumont Holding Company | Apparatus for use in dehumidifying and otherwise conditioning air within a room |
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Also Published As
| Publication number | Publication date |
|---|---|
| GB201806418D0 (en) | 2018-06-06 |
| GB2572829B (en) | 2020-04-08 |
| CN108458419A (en) | 2018-08-28 |
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