Anti-corrosion air conditioner and marine air conditioner

Abstract

The invention relates to the technical field of refrigeration, particularly provides an anti-corrosion air conditioner and a marine air conditioner, and aims to solve the problem that an existing marine air conditioner is easily corroded by vaporous water containing salt and seawater. In order to achieve the purpose, the anti-corrosion air conditioner comprises a shell, an indoor unit and a heat exchanger, the shell is installed on the outdoor side, a sealing cavity is formed in the inner wall of the shell, the indoor unit is installed on the indoor side and used for heating the indoor side, and the heat exchanger is arranged in the sealing cavity and constructed to be communicated with the indoor unit through a heat exchange pipeline. And the heat exchange pipeline is in sealed connection with the sealed cavity, so that the heat exchanger is isolated from the external environment of the shell, the situation that the heat exchanger is corroded by salt-containing water or seawater is effectively avoided, and the service life of the heat exchanger is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigeration, and in particular relates to an anti-corrosion air conditioner and a marine air conditioner. Background Art

[0002] The environment of air conditioners on offshore platforms or ships is quite different from that of traditional air conditioners on land. For example, the air at sea level contains gaseous water with salt, which is easy to corrode metal parts such as metal pipes of heat exchangers installed outdoors. Especially when using water cooling to directly cool the metal pipes of the heat exchanger with seawater, seawater has a strong corrosive effect on the metal pipes of the heat exchanger, which affects the service life of the air conditioner unit.

[0003] In order to solve the above problems, pure titanium or titanium alloy is usually used as the metal tube of the heat exchanger to prevent corrosion by seawater. However, this can only slow down the corrosion rate of the metal tube of the heat exchanger by salt water or seawater, and cannot fundamentally prevent the metal tube of the heat exchanger from being corroded. As a result, the metal tube of the heat exchanger still has the problem of leakage due to long-term corrosion by salt water or seawater.

[0004] Accordingly, the art needs a new technical solution to solve the above problems. Summary of the invention

[0005] In order to solve the above problems in the prior art, that is, to solve the problem that the metal pipes of the heat exchanger installed on the outdoor side in the prior art are corroded by salt water or seawater for a long time and leak.

[0006] In a first aspect, the present invention provides an anti-corrosion air conditioner, the anti-corrosion air conditioner comprising:

[0007] A housing is installed outside the room, and a sealed cavity is formed on the inner wall of the housing;

[0008] An indoor unit, which is installed on the indoor side and is used to cool or heat the indoor side;

[0009] The heat exchanger is arranged inside the sealed cavity and is configured to communicate with the indoor unit through a heat exchange pipeline, and the heat exchange pipeline is sealedly connected to the sealed cavity to isolate the heat exchanger from the external environment of the shell.

[0010] In the preferred technical solution of the above-mentioned anti-corrosion air conditioner, the anti-corrosion air conditioner also includes a heat transfer part, which is arranged in the sealed cavity and is configured to accelerate the heat transfer speed between the heat exchanger and the shell to improve the cooling or heating efficiency of the indoor unit on the indoor side.

[0011] In the preferred technical solution of the above-mentioned anti-corrosion air conditioner, the heat transfer part is a fan, which is arranged in the sealed cavity and is used to accelerate the gas flow speed inside the sealed cavity.

[0012] In the preferred technical solution of the above-mentioned anti-corrosion air conditioner, the anti-corrosion air conditioner further comprises:

[0013] The enhanced heat exchange device is installed on the outer wall of the shell and is configured to accelerate the heat exchange rate between the shell and the external environment of the shell.

[0014] In the preferred technical solution of the above-mentioned anti-corrosion air conditioner, the enhanced heat exchange device comprises:

[0015] a heat dissipation wall, which is mounted on the outer wall of the shell and is configured to form a heat exchange tube with the outer wall of the shell, wherein the heat exchange tube includes a first vent and a second vent;

[0016] An air inlet is arranged on the heat dissipation wall so that air enters the heat exchange cylinder through the air inlet and flows out from the first vent and the second vent to accelerate the flow speed of air on the outer surface of the shell.

[0017] In the preferred technical solution of the above-mentioned anti-corrosion air conditioner, the enhanced heat exchange device further comprises:

[0018] A contraction structure is installed on the outer wall of the shell, and the heat dissipation wall is installed on the contraction structure in a telescopic manner. It is configured to retract the heat dissipation wall into the contraction structure when the air flow rate flowing through the outer wall of the shell is greater than or equal to a preset flow rate, and is also configured to extend the heat dissipation wall from the contraction structure when the air flow rate flowing through the outer wall of the shell is less than the preset flow rate.

[0019] In the preferred technical solution of the above-mentioned anti-corrosion air conditioner, the enhanced heat exchange device further comprises:

[0020] The heat exchange fins are arranged on the outer wall of the shell and are used to increase the contact area between the shell and the air.

[0021] In the preferred technical solution of the above-mentioned anti-corrosion air conditioner, the housing further comprises:

[0022] An anti-corrosion coating applied to the outer wall of the shell;

[0023] The antifouling coating is applied on the outer side of the anticorrosion coating.

[0024] In the preferred technical solution of the above-mentioned anti-corrosion air conditioner, the anti-corrosion air conditioner also includes an inert gas which fills the sealed cavity.

[0025] In a second aspect, the present invention further provides a marine air conditioner, the marine air conditioner further comprising the above-mentioned anti-corrosion air conditioner, wherein the anti-corrosion air conditioner is installed outside the hull.

[0026] When the above technical solution is adopted, the air conditioner of the present invention includes a shell, an indoor unit and a heat exchanger. The shell is installed on the outdoor side, and a sealed cavity is formed on the inner wall of the shell. The indoor unit is installed on the indoor side for heating or cooling the indoor side. The heat exchanger is arranged in the sealed cavity and is configured to be connected with the indoor unit through a heat exchange pipeline, and the heat exchange pipeline is sealed and connected to the sealed cavity to isolate the heat exchanger from the external environment of the shell, effectively avoiding the occurrence of corrosion of the heat exchanger by water containing salt or seawater, thereby increasing the service life of the heat exchanger. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0028] Figure 1 It is a schematic diagram of the transverse cross-sectional structure of the outdoor unit of the anti-corrosion air conditioner of the present invention.

[0029] Figure 2 It is a schematic diagram of the longitudinal cross-sectional structure of the outdoor unit of the anti-corrosion air conditioner of the present invention.

[0030] Figure 3 It is a structural schematic diagram of the enhanced heat exchange device of the anti-corrosion air conditioner of the present invention.

[0031] Figure 4 It is a partial enlarged view of the heat exchange fins of the anti-corrosion air conditioner of the present invention.

[0032] Figure 5 It is a structural schematic diagram of the heat exchange device of the anti-corrosion air conditioner of the present invention in a retracted state.

[0033] Figure 6 It is a structural schematic diagram of the heat exchange device of the anti-corrosion air conditioner of the present invention in an extended state.

[0034] Figure 7 It is a schematic structural diagram of the anti-corrosion coating of the shell of the anti-corrosion air conditioner of the present invention.

[0035] List of reference numerals:

[0036] 1. Anti-corrosion air conditioner; 11. Shell; 111. Sealed cavity; 12. Nitrogen; 13. Enhanced heat exchange device; 131. Heat dissipation wall; 1311. Air inlet; 1312. First vent; 1313. Second vent; 132. Contraction structure; 1321. Bracket; 1322. Contraction groove; 133. Heat exchange fins; 14. Heat exchanger; 15. Fan; 16. Anti-corrosion coating; 161. Anti-corrosion inner layer; 162. Anti-fouling coating. DETAILED DESCRIPTION

[0037] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not used to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0038] It should be noted that, in the description of the present invention, the terms "middle", "upper", "lower", "vertical", "horizontal", "inside", "outside" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are merely for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0039] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] Figure 1 The figure is a schematic diagram of the transverse cross-sectional structure of an outdoor unit of an anti-corrosion air conditioner according to an embodiment of the present invention. Figure 2 The figure is a schematic diagram of the longitudinal cross-sectional structure of an outdoor unit of an anti-corrosion air conditioner according to an embodiment of the present invention. Figure 3 It is a structural schematic diagram of an enhanced heat exchange device for an anti-corrosion air conditioner according to an embodiment of the present invention. Figure 4 It is a partial enlarged view of the heat exchange fins of the anti-corrosion air conditioner according to an embodiment of the present invention. Figure 5 It is a structural schematic diagram of a heat exchange device of an anti-corrosion air conditioner in a retracted state according to an embodiment of the present invention. Figure 6 It is a structural schematic diagram of a heat exchange device of an anti-corrosion air conditioner in an embodiment of the present invention in an extended state. Figure 7 It is a schematic structural diagram of an anti-corrosion coating of a shell of an anti-corrosion air conditioner according to an embodiment of the present invention.

[0041] like Figure 1 See also Figure 2-Figure 7, in order to solve the problem that the existing air conditioner used in offshore platforms or ships is corroded by gaseous water or seawater containing salt, causing damage to the compressor and other important parts of the air conditioner. The present invention provides an anti-corrosion air conditioner 1, which includes a shell 11, an indoor unit (not shown) and a heat exchanger 14. The shell 11 is installed on the outdoor side of the offshore platform (not shown) or the hull (not shown), and the inner wall of the shell 11 is formed with a sealed cavity 111. The indoor unit is installed on the indoor side for cooling or heating the indoor side. The heat exchanger 14 is arranged inside the sealed cavity 111, and is configured to be connected with the indoor unit through a heat exchange pipeline (not shown), and the heat exchange pipeline is sealed and connected to the sealed cavity 111, so that the heat exchanger 14 is isolated from the external environment of the shell 11, effectively avoiding the occurrence of the situation that the water or seawater containing salt corrodes the heat exchanger 14, thereby avoiding the occurrence of the situation that other important parts of the anti-corrosion air conditioner 1 are damaged due to the corrosion and leakage of the heat exchanger 14. Preferably, the housing 11 of the present invention is made of copper or aluminum or a metal with good thermal conductivity such as a copper alloy or an aluminum alloy.

[0042] When the anti-corrosion air conditioner 1 of the present invention cools or heats the indoor side, the heat exchanger 14 installed in the sealed cavity 111 exchanges heat with the shell 11, and then the shell 11 exchanges heat with the outdoor environment, thereby achieving heat exchange between the heat exchanger 14 and the external environment of the shell 11. Through the above-mentioned arrangement, during the heat exchange between the heat exchanger 14 and the external environment of the shell 11, the heat exchanger 14 does not need to have any contact with the external environment of the shell 11, so that the heat exchanger 14 will not contact with gaseous water or seawater containing salt, thereby avoiding the heat exchanger 14 from being corroded by gaseous water or seawater containing salt.

[0043] In addition, the inventors found in the process of realizing the present invention that the metal tube of the heat exchanger 14 made of pure titanium or titanium alloy in the prior art will still leak due to the long-term corrosion of the gaseous water or seawater containing salt during the long-term contact with the gaseous water or seawater containing salt, and the metal tube of the heat exchanger 14 needs to be replaced with a new one after the metal tube of the heat exchanger 14 leaks. Since the metal tube of the heat exchanger 14 made of pure titanium or titanium alloy has a high cost, this will lead to a high cost for replacing the metal tube of the heat exchanger 14. In addition, after the metal tube of the heat exchanger 14 leaks due to corrosion, it may even cause damage to other parts of the indoor unit, which will greatly increase the maintenance cost of the anti-corrosion air conditioner 1.

[0044] During the operation of the anti-corrosion air conditioner 1 of the present invention, the heat exchanger 14 does not need to come into contact with gaseous water or seawater containing salt. Even if the shell 11 is corroded due to long-term contact with gaseous water or seawater containing salt, resulting in holes in the sealed cavity 111 and causing the heat exchanger 14 to come into contact with gaseous water or seawater containing salt, the shell 11 can be replaced in time without replacing the heat exchanger 14 of the anti-corrosion air conditioner 1. In this way, the anti-corrosion air conditioner 1 of the present invention has a lower maintenance cost.

[0045] As a possible implementation, Figure 1 See also Figure 2 The anti-corrosion air conditioner 1 further comprises a heat transfer part, which is arranged in the sealed cavity 111 and is configured to accelerate the heat transfer speed between the heat exchanger 14 and the shell 11, so as to improve the refrigeration or cooling efficiency of the indoor unit to the indoor side. Preferably, the heat transfer part is a fan 15, which is arranged in the sealed cavity 111 and is used to accelerate the gas flow speed inside the sealed cavity 111, so as to improve the heat transfer efficiency between the heat exchanger 14 and the shell 11. In the specific implementation of the present invention, the fan 15 is arranged at the bottom of the sealed cavity 111, so that the fan 15 causes the gas with a lower temperature at the bottom of the sealed cavity 111 to generate forced convection with the gas with a higher temperature at the top of the sealed cavity 111, so that the heat exchanger 14 can fully exchange heat with the gas inside the sealed cavity 111, and then the gas exchanges heat with the shell 11, thereby improving the heat exchange efficiency between the heat exchanger 14 and the shell 11.

[0046] In addition, in a preferred embodiment of the present invention, when the indoor unit heat load is relatively small, the heat exchange demand of the heat exchanger 14 is relatively small, and the fan 15 can be turned off at this time. In this way, when the fan 15 does not need to blow the gas, the gas with a lower temperature at the bottom of the sealed cavity 111 and the gas with a higher temperature at the top of the sealed cavity 111 will also generate self-generated convection. At this time, the shell 11 and the heat exchanger 14 can also achieve heat exchange through natural convection of the gas, so as to achieve the heat exchange efficiency between the heat exchanger 14 and the external environment of the shell 11 when the indoor unit heat load is relatively small. When the indoor unit heat load is relatively large, the anti-corrosion air conditioner 1 can operate in the initial stage of operation. That is, the fan 15 is not turned on at the initial stage of operation, but after a period of operation, when the temperature of the gas in the sealed cavity 111 is at a relatively high level, the fan 15 in the sealed cavity 111 is turned on. At this time, the fan 15 blows the gas, so that the forced convection formed by the gas inside the sealed cavity 111 can realize the rapid heat exchange between the heat exchanger 14 and the shell 11, so that the heat exchanger 14 and the environment outside the shell 11 can be rapidly exchanged.

[0047] Of course, in other embodiments, the heat transfer part can also be a semiconductor refrigeration chip. In this case, the inner wall of the sealed cavity 111 of the shell 11 is provided with a heat insulation layer, and the semiconductor heating chip is installed in the heat insulation layer, so that the cold end and / or hot end of the semiconductor refrigeration chip are located inside the sealed cavity 111, and the hot end and / or cold end of the semiconductor refrigeration chip are located outside the sealed cavity 111 and in contact with the shell 11. In this way, when the anti-corrosion air conditioner 1 cools the indoor side, the cold end of the semiconductor refrigeration chip located inside the sealed cavity 111 cools the inside of the sealed cavity 111, so that the heat exchanger 14 cools the refrigerant flowing through it. The hot end of the semiconductor refrigeration chip located outside the sealed cavity 111 transfers heat to the shell 11, and the shell 11 transfers heat to the external environment, thereby realizing the transfer of heat from the heat exchanger 14 to the external environment where the shell 11 is located. When the indoor side is heated by the indoor unit, the working principle is similar to the above-mentioned refrigeration process, which will not be repeated here.

[0048] It should be noted that although the above combination Figure 1-Figure 2 The shell 11 is described as being installed horizontally on the upper surface of the offshore platform or the hull, but this is not restrictive, and the shell 11 can also be placed in an inclined or vertical manner along the side wall of the offshore platform and the hull. But this is also not restrictive, and in other embodiments of the present invention, the shell 11 can also be installed on the part of the offshore platform or the hull below the sea level, so that the shell 11 can directly contact the seawater, so that the present invention uses seawater resources to cool the shell 11 in a water-cooling manner.

[0049] As a possible implementation, Figure 1 See also Figure 2 When the shell 11 is installed above the sea level, for example, the shell 11 is installed horizontally on the upper surface of an offshore platform or a hull, in order to speed up the heat exchange efficiency between the shell 11 and the external environment in which the shell 11 is located, the anti-corrosion air conditioner 1 also includes a plurality of enhanced heat exchange devices 13. The plurality of enhanced heat exchange devices 13 are evenly distributed along the vertical direction and are installed at the lower part of the outer wall edge of the shell 11, and are configured to speed up the heat exchange rate between the shell 11 and the external environment of the shell 11, thereby increasing the heat exchange rate between the heat exchanger 14 and the external environment of the shell 11, thereby increasing the cooling or heating efficiency of the anti-corrosion air conditioner 1 on the indoor side.

[0050] As a possible implementation, Figure 2 See also Figure 3The enhanced heat exchange device 13 includes a heat dissipation wall 131 and an air inlet 1311. The heat dissipation wall 131 is installed on the outer wall of the shell 11, and is configured to form a heat exchange cylinder placed in the up-down direction with the outer wall of the shell 11, and the heat exchange cylinder includes a first vent 1312 at the upper end and a second vent 1313 at the lower end. In this way, when the air entering the heat exchange cylinder contacts the outer wall of the shell 11, the air exchanges heat with the outer wall of the shell 11. For example, when the anti-corrosion air conditioner 1 cools the indoor side, the temperature of the outer wall of the shell 11 will be higher than the ambient temperature of the outdoor side under the action of heat release of the heat exchanger 14, so that after the air contacts the outer wall of the shell 11, the temperature of the air will be heated and increased. On the contrary, when the anti-corrosion air conditioner 1 heats the indoor side, the temperature of the outer wall of the shell 11 will be lower than the ambient temperature of the outdoor side under the action of heat absorption of the heat exchanger 14, so that the temperature of the air contacting the outer wall of the shell 11 will be cooled and decreased. As is well known, since the density of air decreases with the increase of temperature, when the air inside the heat exchange tube contacts the outer wall of the shell 11 and is heated, the heated air will flow out from the first vent 1312 located at the upper end, and the air with a lower temperature outside the heat exchange tube will enter the heat exchange tube through the air inlet 1311 and the second vent 1313 under the action of pressure. When the air inside the heat exchange tube contacts the outer wall of the shell 11 and is cooled, the cooled air will flow out from the second vent 1313 located at the lower end, and the air with a higher temperature outside the heat exchange tube will enter the heat exchange tube through the air inlet 1311 and the first vent 1312 under the action of pressure. In this way, even if the outer wall of the shell 11 is in a windless environment, under the action of the enhanced heat exchange device 13, flowing air will be formed inside the heat exchange tube, so that the heat exchange speed between the shell 11 and the air can be increased by the enhanced heat exchange device 13.

[0051] It should be noted that despite the combination Figure 1 and Figure 2 The heat dissipation wall 131 is described as being arranged in a vertical direction on the outer edge of the shell 11, but this is not restrictive. Those skilled in the art may also cover the entire outer surface of the shell 11 with a plurality of enhanced heat exchange devices 13 as needed. In this way, while the heat exchange rate between the air and the outer wall of the shell 11 is enhanced by the plurality of enhanced heat exchange devices 13, the heat dissipation walls 131 of the plurality of enhanced heat exchange devices 13 can also block sunlight to avoid direct sunlight on the outer surface of the shell 11, thereby reducing the solar radiation received by the shell 11 and avoiding the situation where the heat exchange efficiency between the shell 11 and the air is affected by solar radiation.

[0052] Preferably, in the specific implementation of the present invention, a rib for increasing the air intake speed of the air intake 1311 can be provided at the air intake 1311 to increase the air intake efficiency of the air intake 1311. Alternatively, the air intake 1311 can be provided with a trumpet-shaped opening that expands outward to increase the air intake efficiency of the air intake 1311.

[0053] As a possible implementation, Figure 3 See also Figure 5-Figure 6 The enhanced heat exchange device 13 also includes a contraction structure 132, which is arranged on the outer wall of the shell 11. The heat dissipation wall 131 is installed on the contraction structure 132 in a telescopic manner. It is configured to extend the heat dissipation wall 131 from the contraction structure 132 when the flow rate of the air flowing through the outer wall of the shell 11 is less than the preset flow rate, so that the heat dissipation wall 131 and the outer wall of the shell 11 form a heat exchange tube. At this time, the heat exchange tube accelerates the air flow rate on the outer surface of the shell 11. It is also configured to retract the heat dissipation wall 131 inside the contraction structure 132 when the air flow rate flowing through the outer wall of the shell 11 is greater than or equal to the preset flow rate, so that the shell 11 exchanges heat with the air under the action of natural wind. In this way, the enhanced heat exchange device 13 can extend or retract the heat dissipation wall 131 according to the wind speed value flowing through the outer surface of the shell 11 under the action of the contraction structure 132. So that the shell 11 and the air have a higher heat exchange efficiency.

[0054] It should be noted that the preset flow rate can be determined by the designer based on experience, experiments, calculations, etc. For example, the preset flow rate can be set to 6 m / s. In this way, if the air flow rate on the outer wall of the shell 11 is higher than 6 m / s, it means that the wind speed in the environment where the shell 11 is located is relatively high, so that when the heat dissipation wall 131 of the heat exchange device 13 is retracted, the temperature of the surface of the shell 11 can be taken away by the air, thereby realizing rapid heat exchange between the shell 11 and the air outside the shell 11, so that the heat exchanger 14 inside the shell 11 exchanges heat with the air through the shell 11, so as to ensure the stable operation of the anti-corrosion air conditioner 1.

[0055] As a possible implementation, Figure 5 See also Figure 6The contraction structure 132 includes a contraction groove 1322 disposed on the surface of the shell 11 and a driving mechanism (not shown) disposed in the contraction groove 1322, through which the heat dissipation wall 131 is driven to extend or retract in the contraction groove 1322. At this time, the heat dissipation wall 131 can be formed by connecting a plurality of parallel heat dissipation plates, and both ends of the plate are slidably connected to a bracket 1321 mounted on the outer wall of the shell 11, so that when the heat dissipation wall 131 extends from the contraction groove 1322 under the action of the driving force of the driving mechanism, the heat dissipation wall 131 can form a heat exchange tube with the outer surface of the shell 11 along the bracket 1321 and under the action of the supporting force of the bracket 1321. Alternatively, in other embodiments of the present invention, the bracket 1321 may not be provided on the outer wall of the housing 11, and the heat dissipation wall 131 itself may be a plate having a circular curved surface. In this case, the contraction groove 1322 is provided in a shape that can match the plate having a circular curved surface, so that the plate having a circular curved surface can extend from the contraction groove 1322 or contract in the contraction groove 1322 under the action of the driving mechanism. Specifically, the driving mechanism may be a common driving mechanism such as a gear set transmission mechanism, a gear rack transmission mechanism or a pneumatic cylinder, which will not be described in detail here.

[0056] As a possible implementation, the anti-corrosion air conditioner 1 further includes a wind speed sensor (not shown) and a controller (not shown), and the wind speed sensor and the driving mechanism are connected to the controller respectively. The wind speed sensor is arranged on the outer wall of the housing 11, and is used to detect the air flow rate of the outer surface of the housing 11, so that the controller controls the driving mechanism to drive the heat dissipation wall 131 to extend from the contraction structure 132 or retract into the contraction structure 132 according to the air flow rate of the outer wall of the housing 11, thereby enabling the present invention to improve the heat exchange efficiency between the housing 11 and the air by extending the heat dissipation wall 131 when the wind speed at sea level is relatively low, or enabling the present invention to enable the housing 11 to quickly exchange heat with the air under the action of natural wind when the wind speed at sea level is relatively high, and at the same time, reduce the wind resistance of the housing 11.

[0057] As a possible implementation, Figure 3 See also Figure 4The enhanced heat exchange device 13 also includes heat exchange fins, which are arranged on the outer wall of the shell 11, and are used to increase the contact area between the shell 11 and the air outside the shell 11, so as to accelerate the heat exchange speed between the shell 11 and the outer shell environment of the shell 11. Preferably, in the specific implementation of the present invention, the heat exchange fins have a V-shaped structure protruding from the outer wall of the shell 11 from bottom to top along the outer wall of the shell 11. By setting the V-shaped structure protruding from the outer wall, when the air inside the heat exchange cylinder moves upward along the outer wall of the shell 11 due to heat, the air can flow upward quickly along the bottom corner of the heat exchange fins of the V-shaped structure, thereby accelerating the flow speed of the air on the outer surface of the shell 11, thereby improving the heat exchange efficiency between the shell 11 and the air. When the air inside the heat exchange cylinder moves downward along the outer wall of the shell 11 due to cooling, the air can flow along the two side walls of the V-shaped structure, and under the action of the two side walls of the heat exchange fins of the V-shaped structure, the air inside the heat exchange cylinder can fully contact the shell 11 with a lower temperature, so that the shell 11 and the air have a higher heat exchange efficiency. Therefore, the heat exchange efficiency between the shell 11 and the air is improved by the heat exchange fins.

[0058] It should be noted that, in the specific implementation of the present invention, the specific protruding height of the V-shaped structure protruding from the outer wall of the shell 11 can be determined according to actual needs.

[0059] As a possible implementation, the anti-corrosion air conditioner 1 also includes an inert gas, which is filled inside the sealed cavity 111, so that the sealed cavity 111 is installed without oxygen and water vapor, ensuring that the heat exchanger 14 does not undergo an oxidation reaction with the gas inside the sealed cavity 111, and then further ensuring that the heat exchanger 14 is not corroded. Preferably, in the specific implementation of the present invention, the inert gas is nitrogen 12. When the nitrogen 12 contacts the outer wall of the shell 11, the nitrogen 12 will rise due to heating or move downward due to cooling. At this time, the unheated or uncooled nitrogen 12 will form natural convection with the heated or cooled nitrogen 12, and then exchange heat with the shell 11, thereby realizing heat exchange of the anti-corrosion air conditioner 1. The above-mentioned heat exchange by natural convection of nitrogen 12 is suitable for the case of low heat exchange load. If the heat exchange load of the heat exchanger 14 is large, the nitrogen 12 inside the sealed cavity 111 will be concentrated in the upper part or lower part of the sealed cavity 111 due to heating or cooling, resulting in a decrease in the convection speed of the nitrogen 12, making the heat exchange speed between the heat exchanger 14 and the shell 11 lower than the temperature rise speed or drop speed of the heat exchanger 14. At this time, in order to increase the heat exchange speed between the heat exchanger 14 and the shell 11, it is necessary to turn on the fan to speed up the flow speed of the nitrogen 12 inside the sealed cavity 111, thereby speeding up the heat exchange speed between the heat exchanger 14 and the shell 11, so as to ensure that the temperature of the heat exchanger 14 is maintained within a certain range, thereby ensuring the stable operation of the anti-corrosion air conditioner 1.

[0060] As a possible implementation, Figure 7 As shown, the shell 11 also includes an anti-corrosion coating 16 coated on the outer wall, and the anti-corrosion coating 16 is used to improve the anti-corrosion performance of the shell 11, thereby increasing the service life of the shell 11. Preferably, the anti-corrosion coating 16 includes an anti-corrosion inner layer 161 and an anti-fouling coating 162. The anti-corrosion inner layer 161 is applied to the outer surface of the shell 11 and / or the enhanced heat exchange device 13, and the corrosion rate of the gaseous water or seawater containing salt water on the shell 11 and / or the enhanced heat exchange device 13 is reduced by the anti-corrosion inner layer 161. The anti-fouling coating 162 is applied to the outer surface of the anti-corrosion inner layer 161 of the shell 11, and the anti-fouling coating 162 makes it difficult for fouling organisms in the ocean air or seawater to adhere to the surface of the anti-fouling coating 162, or the attachment is not firm, so that the fouling organisms attached to the surface of the anti-fouling coating 162 are removed from the surface of the anti-fouling coating 162 under the action of air flow or seawater flow. Among them, the anti-corrosion coating 16 or the anti-corrosion inner layer 161 uses a coating composed of epoxy glass flakes, and utilizes the performance characteristics of epoxy glass flake coating film being hard, wear-resistant, impact-resistant and seawater-resistant to improve the seawater corrosion resistance of the shell 11. The anti-fouling coating 162 uses a silanized acrylic resin, and utilizes the characteristics of silanized acrylic resin having low surface energy, high elasticity and low surface roughness, so that fouling organisms are not easy to adhere to the surface of the anti-fouling coating 162, or the attachment is not firm, and it is easy to be removed from the surface of the anti-fouling coating 162 under the scouring action of strong water flow. Preferably, the thickness of the epoxy glass flake coating is 310 microns to 500 microns, and the thickness of the silanized acrylic resin coating is 100 microns to 200 microns, so that the shell 11 has high anti-corrosion and anti-fouling properties while also having good heat transfer performance.

[0061] It should be noted that, although the anti-corrosion coating 16 or the anti-corrosion inner layer 161 described above is an epoxy glass phosphorus flake coating and the anti-fouling coating 162 is a silanized acrylic resin coating, this is not restrictive, and those skilled in the art can also select different anti-corrosion coatings 16 or anti-corrosion inner layers 161 and different anti-fouling coatings 162 according to specific needs and specific application scenarios. For example, the anti-corrosion coating 16 or the anti-corrosion inner layer 161 can be a coating with anti-corrosion properties such as graphite flake coating or polyurethane anti-corrosion coating, and the anti-fouling coating 162 can be a coating with anti-fouling properties such as acrylic zinc resin coating, acrylate resin coating or carboxylic zinc resin coating.

[0062] In addition, those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present invention and form different embodiments. For example, in the claims of the present invention, any one of the claimed embodiments may be used in any combination.

[0063] So far, the technical solutions of the present invention have been described in conjunction with the optional implementation modes shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific implementation modes. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. An anti-corrosion air conditioner, characterized in that: The anti-corrosion air conditioner comprises: A housing is installed outside the room, and the interior of the housing forms a sealed cavity; An indoor unit, installed on the indoor side, for cooling or heating the indoor side; and The heat exchanger is arranged in the sealed cavity and is configured to communicate with the indoor unit through a heat exchange pipeline, and the heat exchange pipeline is sealedly connected to the sealed cavity to isolate the heat exchanger from the external environment of the shell.

2. The anti-corrosion air conditioner according to claim 1, characterized in that: The anti-corrosion air conditioner also includes a heat transfer portion, which is arranged in the sealed cavity and is configured to accelerate the heat transfer speed between the heat exchanger and the shell to improve the cooling or heating efficiency of the indoor unit on the indoor side.

3. The anti-corrosion air conditioner according to claim 2, characterized in that: The heat transfer part is a fan, which is arranged in the sealed cavity and is used to accelerate the flow speed of the gas in the sealed cavity.

4. The anti-corrosion air conditioner according to claim 1, characterized in that: The anti-corrosion air conditioner also includes: The enhanced heat exchange device is installed in the cooling area of ​​the outer wall of the shell and is configured to accelerate the heat exchange rate between the shell and the external environment of the shell.

5. The anti-corrosion air conditioner according to claim 4, characterized in that: The enhanced heat exchange device comprises: a heat dissipation wall installed in a to-be-cooled region of the outer wall of the shell, configured to form a heat exchange tube with the outer wall of the shell, wherein the heat exchange tube includes a first vent and a second vent; and An air inlet is arranged on the heat dissipation wall so that air enters the heat exchange cylinder through the air inlet and flows out from the first vent and the second vent to accelerate the flow speed of air on the outer surface of the shell.

6. The anti-corrosion air conditioner according to claim 5, characterized in that: The enhanced heat exchange device also includes: A contraction structure is installed at a position in the outer wall of the shell corresponding to the heat dissipation wall. The heat dissipation wall is configured to be installed on the contraction structure in a telescopic manner, and is configured to retract the heat dissipation wall into the contraction structure when the air flow rate through the outer wall of the shell is greater than or equal to a preset flow rate. The heat dissipation wall is also configured to extend out of the contraction structure when the air flow rate through the outer wall of the shell is less than the preset flow rate.

7. The anti-corrosion air conditioner according to claim 5, characterized in that: The enhanced heat exchange device also includes: Heat exchange fins are arranged in the area to be cooled on the outer wall of the shell and are used to increase the contact area between the shell and the air.

8. The anti-corrosion air conditioner according to claim 1, characterized in that: The housing further comprises: An anti-corrosion coating is applied to the outer wall of the shell.

9. The anti-corrosion air conditioner according to any one of claims 1 to 8, characterized in that: The anti-corrosion air conditioner also includes an inert gas which fills the sealed cavity.

10. A marine air conditioner, characterized in that: The marine air conditioner comprises the anti-corrosion air conditioner according to any one of claims 1 to 9, and the anti-corrosion air conditioner is installed outside the hull.

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