Outdoor fan protection cover and floating liquefied natural gas production, storage and unloading device

Abstract

The utility model relates to an outdoor fan protection cover and a floating type liquefied natural gas production, storage and unloading device, the outdoor fan protection cover is applied to the floating type liquefied natural gas production, storage and unloading device, the outdoor fan protection cover comprises a cover body and a door plate, the cover body is provided with a containing cavity, the cover body is used for being arranged outside a fan in a covering mode, and an opening is formed in one side of the cover body; the door plate is hinged to the cover body and shields the opening; wherein the bottom of the fan is connected to the bottom of the cover body, a vibration isolation piece is arranged between the fan and the cover body, a ventilation opening is formed in the cover body, and an air outlet of the fan is communicated with the ventilation opening. Through the structure, the contact between the fan and the external environment can be effectively isolated, so that the risk that the shell of the fan is easily corroded by the marine environment is reduced, and the service life of the outdoor fan is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to floating liquefied natural gas production storage and handling device technical field, especially an outdoor fan protection cover and floating liquefied natural gas production storage and handling device. BACKGROUND

[0002] The ship air conditioner outdoor unit is composed of condenser, cooling fan, compressor and other components, and is usually arranged outdoors as it needs to utilize outdoor air for heat exchange. However, the air humidity and salt content in marine environment are high, and the light is strong, which causes serious erosion to mechanical equipment.

[0003] For the centrifugal fan used in current ships and marine engineering, although the fan shell and impeller material can adopt stainless steel material to meet the corrosion resistance requirement of marine environment, the motor shell is usually made of cast steel material. In addition, as there is a gas hazard zone in the floating liquefied natural gas production storage and handling device (FLNG for short), the centrifugal fan installed outdoors is required to be explosion-proof from the safety perspective, so the fan must adopt a spark-free mechanical structure design that meets the explosion-proof requirement, which results in that the parts in the fan that contact with air cannot all be made of stainless steel material. These parts cannot meet the corrosion resistance requirement at the same time as the shell during long-term operation of the equipment, which also causes a conflict with the stringent design life problem of FLNG. SUMMARY

[0004] Therefore, it is necessary to provide an outdoor fan protection cover and floating liquefied natural gas production storage and handling device to solve the technical problem of low corrosion resistance of the outdoor centrifugal fan shell in the prior art, which affects the service life.

[0005] An outdoor fan protection cover is applied to a floating liquefied natural gas production storage and handling device, and comprises:

[0006] A cover body is configured with a receiving cavity, and the cover body is used to cover the outside of the fan, and an opening is formed in one side of the cover body.

[0007] A door plate is hinged to the cover body, and the door plate shields the opening.

[0008] The bottom of the fan is connected to the bottom of the cover body, a vibration isolation piece is arranged between the fan and the cover body, a ventilation opening is arranged on the cover body, and the air outlet of the fan is in communication with the ventilation opening.

[0009] In one embodiment, the air outlet of the fan is connected to the ventilation opening through a connecting pipe, and the connecting pipe can be elastically deformed.

[0010] In one of the embodiments, the outdoor fan protective cover further comprises:

[0011] A flange is arranged at the vent and fixedly connected with the cover body, and the flange is used for connecting with an air duct.

[0012] In one of the embodiments, a heat dissipation vent is further arranged on the cover body, and the heat dissipation vent is communicated with an external environment and the accommodating cavity.

[0013] In one of the embodiments, the outdoor fan protective cover further comprises:

[0014] A rain cover is arranged at the heat dissipation vent and fixedly connected with the cover body, and the rain cover can shield an upper edge of the heat dissipation vent.

[0015] In one of the embodiments, the outdoor fan protective cover further comprises:

[0016] A base is supported on the ground, and the cover body is supported on the base.

[0017] In one of the embodiments, the outdoor fan protective cover further comprises:

[0018] Lifting lugs are provided with lifting holes, and the number of the lifting lugs is multiple, and the multiple lifting lugs are arranged on the base in intervals.

[0019] In one of the embodiments, the cover body comprises:

[0020] A frame is configured as a hollow structure.

[0021] Panels are arranged on the side surface of the frame, and the panels arranged on the side surface, the top surface and the bottom surface of the frame enclose to define the accommodating cavity.

[0022] In one of the embodiments, the panel comprises:

[0023] A first surface layer;

[0024] A second surface layer is arranged in intervals with the first surface layer to form a sandwich cavity.

[0025] A filling layer is arranged in the sandwich cavity, and the two sides of the filling layer are fixedly connected with the first surface layer and the second surface layer respectively.

[0026] A floating type liquefied natural gas production, storage and unloading device, the floating type liquefied natural gas production, storage and unloading device comprises the outdoor fan protective cover.

[0027] The outdoor fan protective cover has the following beneficial effects:

[0028] The utility model provides an outdoor fan protection cover, is provided with the accommodation cavity on the cover body, in order to facilitate the fan to be located in the accommodation cavity of cover body, in order to isolate the fan from the external environment. By setting up the opening on the cover body, the door plate is hinged with the cover body, and the opening is shielded through the door plate, so that the opening on the cover body is shielded through the door plate under normal circumstances, to shield the external air, when the fan needs to be overhauled, the opening can be opened through the door plate, thereby entering the accommodation cavity and overhauling the fan. The bottom of the fan is connected to the bottom of the cover body, so as to support the fan through the bottom wall of the cover body. By setting the vibration isolator between the fan and the cover body, the vibration of the fan during operation is absorbed through the vibration isolator, so that the operation of the fan is more stable and reliable. By setting the vent on the cover body, and connecting the air outlet of the fan with the vent on the cover body, the wind blown by the fan is blown into the indoor unit through the vent, thereby ensuring the normal operation of the air conditioning equipment. Through the above structure, the contact between the fan and the external environment can be effectively isolated, thereby reducing the risk that the shell of the fan is easily corroded by the marine environment, and thereby improving the service life of the outdoor fan. BRIEF DESCRIPTION OF DRAWINGS

[0029] Fig. 1 The internal structure schematic view of the outdoor fan protection cover under the top view of the utility model embodiment is provided.

[0030] Fig. 2 The internal structure schematic view of the outdoor fan protection cover under the front view of the utility model embodiment is provided.

[0031] Fig. 3 The internal structure schematic view of the outdoor fan protection cover under the left view of the utility model embodiment is provided.

[0032] Fig. 4 The internal structure schematic view of the outdoor fan protection cover under the right view of the utility model embodiment is provided.

[0033] Cover body 100, accommodation cavity 110, heat dissipation air outlet 120, rain cover 130, base 140, lug 150, panel 160, first face layer 161, second face layer 162, filling layer 163, door plate 200, fan 300, fan seat 310, connecting pipe 400, flange 500, stainless steel material box 600, grounding column 700, vibration isolator 800, hinge 900. DETAILED DESCRIPTION

[0034] In order to make the above object, characteristics and advantages of the present application more apparent, concrete embodiments of the present application will be described in detail with reference to the drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different manners without departing from the spirit of the present application. Those skilled in the art will appreciate the scope of the present application and can make similar modifications without departing from the spirit of the present application. Therefore, the present application is not limited by the embodiments disclosed below.

[0035] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0036] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0037] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0039] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on another element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. The terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment.

[0040] Referring to Figs. 1 to 4 The utility model discloses an outdoor fan 300 protection cover, be applied to floating type liquefied natural gas production storage and unloading device, outdoor fan 300 protection cover includes cover body 100 and door board 200, cover body 100 constructs and holds cavity 110, cover body 100 is used for cover and is located in the outside of fan 300, and the opening is seted up in the side of cover body 100, door board 200 is hinged in cover body 100, and door board 200 shields the opening, wherein the bottom of fan 300 is connected to the bottom of cover body 100, and the vibration isolation piece 800 is arranged between fan 300 and cover body 100, and the vent is provided on cover body 100, and the air outlet of fan 300 is communicated with the vent.

[0041] The technical scheme provides an outdoor fan 300 protective cover, a containing cavity 110 is arranged on a cover body 100, so that the fan 300 is arranged in the containing cavity 110 of the cover body 100, and the fan 300 is isolated from the external environment. An opening is formed on the cover body 100, a door plate 200 is hinged to the cover body 100, and the opening is shielded by the door plate 200, so that the opening on the cover body 100 is shielded by the door plate 200 in a normal case, and external air is shielded; when the fan 300 needs to be overhauled, the opening can be opened by the door plate 200, so that the fan 300 is overhauled in the containing cavity 110. The bottom of the fan 300 is connected to the bottom of the cover body 100, so that the fan 300 is supported by the bottom wall of the cover body 100. The vibration of the fan 300 during operation is absorbed by the vibration isolation piece 800 arranged between the fan 300 and the cover body 100, so that the operation of the fan 300 is more stable and reliable. The air outlet of the fan 300 is communicated with the air vent on the cover body 100, so that the air blown by the fan 300 is blown into the indoor unit through the air vent, so that the normal operation of the air conditioning equipment is ensured. Through the above structure, the contact between the fan 300 and the external environment can be effectively isolated, so that the risk that the shell of the fan 300 is easily corroded by the marine environment is reduced, and the service life of the outdoor fan 300 is prolonged.

[0042] It can be understood that the specific shape of the cover body 100 is not limited, and can be cylindrical, elliptical cylindrical, cuboid or square structure. In the application, the cover body 100 is taken as a square structure for example. An opening for maintenance personnel to enter and exit is formed on one side of the cover body 100, the door plate 200 can be one or two, in the embodiment, the door plate 200 is two, and the two door plates 200 are hinged to opposite sides of the opening through hinges 900, so that the door plate 200 can rotate relative to the cover body 100. The door plate 200 is of a split type, which facilitates periodic state inspection and maintenance work of the equipment, and also facilitates installation, wiring and later replacement of the fan 300 and the motor.

[0043] The fan 300 has a fan seat 310, the fan seat 310 is connected with the bottom wall of the cover body 100, and the vibration isolation piece 800 can be a spring or an elastically deformable cross pad.

[0044] It should be noted that in the embodiment, the fan 300 is a centrifugal fan 300, which is used as an air conditioner outdoor unit in a floating liquefied natural gas production, storage and offloading device. The floating liquefied natural gas production, storage and offloading device (FLNG, also known as LNG-FPSO) is a floating production device used for offshore natural gas field development, which is positioned on the sea through a mooring system, has the functions of exploitation, processing, liquefaction, storage and loading and unloading of natural gas, and realizes the exploitation of offshore natural gas fields and the transportation of natural gas by being used in combination with a liquefied natural gas (LNG) ship.

[0045] In one embodiment, the outlet of the fan 300 is connected to the vent of the cover 100 through a connecting pipe 400, which can be elastically deformed. The outlet of the fan 300 is connected to the vent of the cover 100 through the elastically deformable connecting pipe 400, so that the air discharged from the outlet of the fan 300 can be discharged through the connecting pipe 400 and the vent. Specifically, the connecting pipe 400 can be a canvas pipe with fire resistance function, or a rubber pipe, or a telescopic corrugated pipe. It can be understood that, since the fan 300 has vibration when it is running, the connecting pipe 400 is selected to have the above structure, so as to absorb the vibration of the fan 300 through the elastic deformation of the connecting pipe 400, thereby ensuring the reliability of the connection between the outlet of the fan 300 and the vent of the cover 100.

[0046] In one embodiment, the cover 100 includes a frame and a panel 160, the frame is configured as a hollow structure; the panel 160 is arranged on the side surface of the frame, and the panels 160 arranged on the side surface, top surface and bottom surface of the frame enclose to define the accommodation cavity 110. Further, the panel 160 includes a first surface layer 161, a second surface layer 162 and a filling layer 163, the second surface layer 162 is arranged spaced apart from the first surface layer 161 to form a sandwich cavity; the filling layer 163 is arranged in the sandwich cavity, and the two sides of the filling layer 163 are fixedly connected to the first surface layer 161 and the second surface layer 162 respectively.

[0047] Specifically, the frame can be made of stainless steel profiles or aluminum alloy profiles, and a plurality of profiles are connected end to end to form a hollow frame in the shape of a cube. The panel 160 is fixedly connected to the side surface, bottom surface and top surface of the frame. The frame is used to support the panel 160, and the panel 160 is used to close the accommodation cavity 110, thereby shielding the outside air.

[0048] By setting the panel 160 to form a sandwich cavity through the first surface layer 161 and the second surface layer 162, and setting the filling layer 163 in the sandwich cavity, the corrosion resistance and fire resistance of the panel 160 are improved. Specifically, the first surface layer 161 and the second surface layer 162 are made of stainless steel material, and the filling layer 163 is made of thermal insulation rock wool. The stainless steel material has good corrosion resistance, and the thermal insulation rock wool has good fire resistance. For example, the first surface layer 161 facing the external environment is made of 316L stainless steel plate with a thickness of 1.2 mm, and the second surface layer 162 facing the accommodation cavity 110 is made of 316L stainless steel plate with a thickness of 1 mm; the density of the thermal insulation rock wool as the filling layer 163 is 80 kilograms per cubic meter. Through the above structure, noise isolation is achieved while preventing heat transfer and condensation caused by large temperature difference between the inside and outside of the protective cover.

[0049] In one embodiment, the outdoor fan 300 protective cover further comprises a flange 500, which is arranged at the ventilation opening and fixedly connected with the cover body 100, and the flange 500 is used to connect with the air pipe. By connecting the flange 500 at the ventilation opening of the cover body 100, the flange 500 is connected with the air pipe, so that the wind blown out from the fan 300 is sent into the indoor unit through the air pipe. Specifically, the flange 500 is fixedly connected with the panel 160 through bolts by opening the ventilation opening on one of the surfaces.

[0050] In one embodiment, the cover body 100 is further provided with a heat dissipation air opening 1200, which communicates the external environment with the accommodation cavity 110. The outdoor fan 300 protective cover further comprises a rainproof cover 130, which is arranged at the heat dissipation air opening 1200 and fixedly connected with the cover body 100, and the rainproof cover 130 can shield the upper edge of the heat dissipation air opening 1200.

[0051] Specifically, the heat dissipation air opening 1200 is arranged on the panel 160, and the heat dissipation air opening 1200 is arranged in a grid structure. By arranging the heat dissipation air opening 1200 on the panel 160, the interior of the accommodation cavity 110 is ventilated, so as to achieve heat dissipation of the fan 300. Further, in order to prevent rainwater from entering the accommodation cavity 110 through the heat dissipation air opening 1200 and causing corrosion to the fan 300 shell when it rains, the rainproof cover 130 is arranged at the heat dissipation air opening 1200 in this embodiment, so as to shield the upper edge of the heat dissipation air opening 1200 through the rainproof cover 130, thereby preventing rainwater from entering the accommodation cavity 110 from the heat dissipation air opening 1200.

[0052] In one of the embodiments, the outdoor fan 300 protective cover further comprises a base 140 supported on the ground, and the cover body 100 is supported on the base 140. The outdoor fan 300 protective cover further comprises a lifting lug 150 provided with a lifting hole, and the number of the lifting lug 150 is multiple, and the multiple lifting lugs 150 are arranged on the four outer side walls of the cover body 100 at intervals.

[0053] The base 140 of the protective cover adopts a carbon steel plus anti-corrosion coating process, which solves the problem of galvanic corrosion between different materials while ensuring structural rigidity and corrosion resistance. By providing the lifting lug 150 on the base 140 and providing the lifting hole on the lifting lug 150, the lifting and installation of the fan 300 together with the whole protective cover are facilitated. In addition, in this embodiment, grounding columns 700 are provided at appropriate positions of the fan 300 shell and the cover body 100, which can ensure effective grounding of electrical equipment; and a stainless steel material box 600 for pre-installing cable entry is provided on the panel 160, which facilitates wiring during on-site installation.

[0054] The utility model embodiment further provides a floating type liquefied natural gas production, storage and unloading device, and the floating type liquefied natural gas production, storage and unloading device comprises the outdoor fan protective cover.

[0055] The technical features of the above-described embodiments can be combined arbitrarily, and to make the description concise, all possible combinations of the technical features in the above-described embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that it is within the scope of the present application.

[0056] The above-described embodiments only express several implementation manners of the utility model, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the utility model patent. It should be pointed out that for ordinary skilled persons in the art, without departing from the concept of the utility model, a number of modifications and improvements can be made, which are all within the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An outdoor fan protection cover, used in a floating liquefied natural gas production, storage and unloading device, characterized in that: The outdoor fan protection cover comprises: A cover body, wherein the cover body is configured with a receiving cavity, the cover body is used to cover the outside of the fan, and an opening is opened on one side of the cover body; a door panel, the door panel being hinged to the cover body and covering the opening; The bottom of the fan is connected to the bottom of the cover, a vibration isolator is provided between the fan and the cover, a vent is provided on the cover, and the air outlet of the fan is connected to the vent.

2. The outdoor fan protection cover according to claim 1, characterized in that: The air outlet of the fan is connected to the vent via a connecting pipe, and the connecting pipe is elastically deformable.

3. The outdoor fan protection cover according to claim 1, characterized in that: The outdoor fan protection cover also includes: A flange is provided at the vent and fixedly connected to the cover body, and is used to be connected to the air duct.

4. The outdoor fan protection cover according to claim 1, characterized in that: The cover body is also provided with a heat dissipation vent, which connects the external environment with the accommodating cavity.

5. The outdoor fan protection cover according to claim 4, characterized in that: The outdoor fan protection cover also includes: A rain cover is provided at the heat dissipation vent and is fixedly connected to the cover body. The rain cover can shield the upper edge of the heat dissipation vent.

6. The outdoor fan protection cover according to claim 1, characterized in that: The outdoor fan protection cover also includes: A base is supported on the ground, and the cover is supported on the base.

7. The outdoor fan protection cover according to claim 6, characterized in that: The outdoor fan protection cover also includes: A lifting lug is provided with a lifting hole, and the number of the lifting lugs is multiple, and the multiple lifting lugs are arranged on the base at intervals.

8. The outdoor fan protection cover according to any one of claims 1 to 7, characterized in that: The cover body comprises: The frame is constructed as a hollow structure; The panel is arranged on the side surface of the frame, and the panel arranged on the side surface, top surface and bottom surface of the frame encloses and defines the accommodating cavity.

9. The outdoor fan protection cover according to claim 8, characterized in that: The panel includes: First surface layer; a second surface layer, spaced apart from the first surface layer to form a sandwich cavity; The filling layer is arranged in the interlayer cavity, and two sides of the filling layer are fixedly connected to the first surface layer and the second surface layer respectively.

10. A floating liquefied natural gas production, storage and unloading device, characterized in that: The floating liquefied natural gas production, storage and unloading device includes the outdoor fan protection cover according to any one of claims 1 to 9.

Images