Integrated fresh air handling unit for shipbuilding industry

Abstract

The utility model belongs to the technical field of environment-friendly ventilation, and discloses an integrated fresh air handling unit for the shipbuilding industry. Comprising a unit shell; a fresh air mechanism and a plurality of direct expansion external units are arranged in the unit shell; the multiple direct expansion outer units are arranged on one side of the fresh air mechanism, a static pressure box used for balancing pressure is further arranged in the unit shell, the static pressure box is arranged at the position of an air outlet of the fresh air mechanism, and a plurality of air supply connectors are formed in the unit shell. The fresh air mechanism has the functions of fresh air filtration, refrigeration and reheating dehumidification. The fresh air handling unit directly exchanges heat with air through a refrigerant, secondary heat exchange is not needed, a water source is not needed, and use is easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of environmental protection ventilation and relates to an integrated fresh air unit for the shipbuilding industry. Background Art

[0002] In the shipbuilding industry, a lot of welding, grinding and dust removal work is required due to the needs of shipbuilding and processing, and the manual operation environment is relatively harsh. The existing mechanical compartment uses the existing fan to supply air to the interior through the pipeline, but the air supply quality of this solution cannot be guaranteed. When the air is polluted or the weather is hot in summer, the air quality sent to the mechanical compartment is relatively poor and the temperature is relatively high, which cannot effectively improve the working environment of workers. Now there is an urgent need for a fresh air unit with purification and refrigeration functions and easy to use and operate for ventilation in the mechanical compartment. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the above-mentioned background technology and provide an integrated fresh air unit for the shipbuilding industry, wherein the fresh air mechanism has fresh air filtering, refrigeration and reheating and dehumidification functions. The fresh air unit directly exchanges heat with the air through the refrigerant, and does not require secondary heat exchange, so it does not require a water source and is simple to use.

[0004] The technical solution adopted by the utility model to solve its technical problems is: an integrated fresh air unit for the shipbuilding industry, comprising a unit shell; a fresh air mechanism and a plurality of direct expansion external machines are arranged in the unit shell; the plurality of direct expansion external machines are arranged on one side of the fresh air mechanism, a static pressure box for balancing the pressure is also arranged in the unit shell, a static pressure box is arranged at the air outlet of the fresh air mechanism, and a plurality of air supply interfaces are arranged on the unit shell.

[0005] The fresh air mechanism comprises a shell, an air inlet is arranged on the side wall of the shell, a fan section, an electric heating section, a surface cooling section, a primary filter section and an air inlet section are arranged in sequence in the shell; the air inlet is arranged on the side wall panel of the air inlet section; and a fan is arranged in the fan section.

[0006] The shell comprises an inner plate and an outer plate, and polyurethane foam is arranged between the inner plate and the outer plate. The inner plate and the outer plate are made of 304 stainless steel.

[0007] The surface cooling section is a surface cooler (without limitation on the model) or is provided with a plurality of copper tubes, and the copper tubes are filled with a refrigerant, and the refrigerant is preferably fluorine.

[0008] The electric heating section includes an electric heater. The electric heater is not limited in model and can achieve heating.

[0009] The primary filtration stage comprises a filter, preferably a G4 filter.

[0010] An inspection door is arranged on the shell body and an observation window is arranged on the inspection door.

[0011] An air outlet of the fresh air mechanism is arranged on the side wall of the fan section.

[0012] A static pressure box for balancing pressure is also arranged inside the unit shell. Rubber and plastic cotton is pasted on the outside of the static pressure box for heat preservation.

[0013] Furthermore, each air supply interface is externally connected to an air supply duct. Each air supply interface is equipped with an air valve.

[0014] Furthermore, an air supply interface is arranged on the upper part of the unit housing and is connected to the outlet of the static pressure box.

[0015] Furthermore, a plurality of unit inspection doors are provided on the unit casing; the unit inspection doors can be opened to enter the interior of the unit for inspection and maintenance.

[0016] Furthermore, a skylight is arranged on the top of the unit casing, and rainproof louvers are arranged on the side walls; the rainproof louvers and the skylight provide heat dissipation for the operation of the unit.

[0017] Furthermore, the fresh air unit is preferably provided with 4 to 6 air supply interfaces, which can simultaneously supply air to 4 to 6 air supply ducts. The air supply interfaces are connected to the air supply ducts to supply fresh air to the working environment.

[0018] Furthermore, the unit housing is a 40GP standard container. The direct expansion external machine is a commercially available product. There is no restriction on the model. Several direct expansion external machines are preferably arranged at equal distances.

[0019] Furthermore, the unit casing is made of stainless steel 304, which has good corrosion resistance and is more suitable for harsh environments such as the seaside where the air humidity is high and there is a lot of salt in the air.

[0020] The unit is also equipped with an electric control cabinet, which includes a PLC control system. The air valve, fan, direct expansion external unit, surface cooling section, electric heating section, filter, and static pressure box are respectively connected to the PLC control system, and the specific model is not limited, as long as the working function is achieved.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] An integrated fresh air unit for the shipbuilding industry is arranged on the deck of the ship to provide fresh air for the fresh air system. The integrated fresh air unit uses a 40GP standard container as the unit shell, and integrates a fresh air mechanism and a direct expansion external unit. The unit shell is provided with an inspection door, rainproof shutters and skylights. Through the inspection door, you can enter the interior of the fresh air unit to inspect and maintain the equipment. The rainproof shutters and skylights can provide heat dissipation for the operation of the equipment. The fresh air mechanism has the functions of fresh air filtration, refrigeration and reheating dehumidification. The fresh air unit (direct expansion type) directly exchanges heat with the air through the refrigerant, does not require secondary heat exchange, so does not require a water source, and is simple to use. The fresh air unit is very convenient to hoist and transport, does not require installation, and can be used by plugging in. The fresh air unit can not only provide fresh air, but also provide cold air to realize the air conditioning function. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Figure 1 This is a front view of an integrated fresh air unit for the shipbuilding industry according to the utility model.

[0025] Figure 2 The utility model is a top view of an integrated fresh air unit for the shipbuilding industry.

[0026] Figure 3 The utility model is a perspective view of the main surface of an integrated fresh air unit for the shipbuilding industry.

[0027] Figure 4 The utility model is a top perspective view of an integrated fresh air unit for the shipbuilding industry.

[0028] Figure 5 It is a schematic diagram of the internal structure of the main view of the fresh air mechanism of the utility model.

[0029] Figure 6 It is a schematic diagram of the internal structure of the fresh air mechanism of the utility model when viewed from above.

[0030] In the figure, 1. unit casing, 2. air supply interface, 3. unit maintenance door, 4. electric control cabinet, 5. rainproof shutters, 6. skylight, 7. air valve, 8. static pressure box, 9. fresh air mechanism, 10. direct expansion outdoor unit, 901. casing, 902. fan, 903. maintenance door, 904. electric heating section, 905. surface cooling section, 906. primary filter section, 907. air inlet. DETAILED DESCRIPTION

[0031] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0032] Example 1

[0033] An integrated fresh air unit for shipbuilding industry, such as Figure 1-6 As shown, it includes a unit casing 1; a fresh air mechanism 9 and a plurality of direct expansion external machines 10 are arranged in the unit casing 1; the plurality of direct expansion external machines 10 are arranged on one side of the fresh air mechanism 9, and a static pressure box 8 for balancing the pressure is also arranged in the unit casing 1, a static pressure box 8 is arranged at the air outlet of the fresh air mechanism 9, and a plurality of air supply interfaces 2 are arranged on the unit casing 1.

[0034] The fresh air mechanism 9 includes a housing 901, an air inlet 907 is arranged on the side wall of the housing 901, and a fan section, an electric heating section 904, a surface cooling section 905, a primary filter section 906, and an air inlet section are arranged in sequence in the housing 901; the air inlet 907 is arranged on the side wall plate of the air inlet section; and a fan 902 is arranged in the fan section. The air inlet 907 is arranged through the housing 901 and the unit housing 1.

[0035] The housing 901 includes an inner plate and an outer plate, and polyurethane foam is arranged between the inner plate and the outer plate. The inner plate and the outer plate are made of 304 stainless steel.

[0036] The surface cooling section 905 is a surface cooler (without limitation on the model) or is provided with a plurality of copper tubes, and the copper tubes are filled with a refrigerant, and the refrigerant is preferably fluorine.

[0037] The electric heating section 904 includes an electric heater. The electric heater is not limited in model and can be used as long as heating is achieved.

[0038] The primary filter section 906 includes a filter, preferably a G4 filter.

[0039] An inspection door 903 is provided on the housing 901. An observation window is provided on the inspection door 903.

[0040] An air outlet of the fresh air mechanism 9 is arranged on the side wall of the fan section.

[0041] A static pressure box 8 for balancing pressure is also arranged in the unit housing 1. Rubber and plastic cotton is attached to the outside of the static pressure box 8 for heat preservation.

[0042] Each air supply interface 2 is connected to an air supply duct. Each air supply interface 2 is equipped with an air valve 7.

[0043] The air supply interface 2 is arranged on the upper part of the unit housing 1. The air supply interface 2 is connected to the outlet of the static pressure box 8.

[0044] A plurality of unit inspection doors 3 are provided on the unit casing 1; the unit inspection doors 3 can be opened to enter the unit for inspection and maintenance.

[0045] A skylight 6 is arranged on the top of the unit casing 1, and rainproof louvers 5 are arranged on the side walls; the rainproof louvers 5 and the skylight 6 provide heat dissipation for the operation of the unit.

[0046] The fresh air unit is preferably provided with 4 to 6 air supply interfaces 2, which can simultaneously supply air to 4 to 6 air supply ducts. The air supply interface 2 is connected to the air supply duct to supply fresh air to the working environment.

[0047] The unit housing 1 is a 40GP standard container. The direct expansion external machine 10 is a commercially available product. There is no restriction on the model. Several direct expansion external machines 10 are preferably arranged at equal distances.

[0048] The unit housing 1 is made of stainless steel 304, which has good corrosion resistance and is more suitable for harsh environments such as the seaside with high humidity and high salt content in the air.

[0049] The unit is also equipped with an electric control cabinet 4, which includes a PLC control system. The air valve 7, fan 902, direct expansion external machine 10, surface cooling section 905, electric heating section 904, filter, and static pressure box 8 are respectively connected to the PLC control system, and the specific model is not limited, as long as the working function is realized.

[0050] During specific operation, the fresh air mechanism 9 provides fresh air, and the direct expansion external unit 10 is connected to the surface cooling section 905 to provide a cold source for cooling the fresh air. A static pressure box 8 is set at the outlet of the fresh air mechanism 9. The static pressure box 8 has the function of balancing pressure and can ensure the pressure balance of multiple air supply interfaces. The static pressure box 8 is externally insulated. Each air supply interface is provided with an air valve 7. The air supply interface that does not need air supply or is not connected to the air supply pipe needs to close the air valve 7. Under the action of the fan 902, the outdoor air first enters the air inlet section of the fresh air mechanism through the air inlet 907, and then the dust, cotton wool and other impurities in the outdoor wind are filtered by the primary filter section 906. The primary filter section 906 uses a G4 filter. The filtered air passes through the surface cooling section 905 for heat exchange and cooling. After the fresh air is cooled, the humidity is relatively high and close to saturation. At this time, it needs to pass through the electric heating section 904 for reheating and dehumidification to ensure that no condensation occurs during the air supply process. The fresh air mechanism can be entered through the inspection door 903 to inspect the equipment.

[0051] The integrated fresh air unit is easy to hoist and transport, and can be used without installation and plugging in. After the construction is completed, just unplug the power supply and disconnect the air supply duct interface, and the integrated fresh air unit can be hoisted and ready to continue to be used for the next set of hull closure. The fresh air unit is a direct expansion type, which directly exchanges heat with the air through the refrigerant, does not require secondary heat exchange, and therefore does not require a water source, making it simple and convenient to use. It has the air conditioning function of delivering cold air, and has the function of reheating and dehumidification. While cooling, it ensures the appropriate humidity of the supplied air to prevent condensation.

[0052] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. An integrated fresh air unit for the shipbuilding industry, characterized in that: The machine shell (1) comprises a unit casing (1); a fresh air mechanism (9) and a plurality of direct expansion external machines (10) are arranged in the unit casing (1); the plurality of direct expansion external machines (10) are arranged on one side of the fresh air mechanism (9); a static pressure box (8) for balancing pressure is also arranged in the unit casing (1); the static pressure box (8) is arranged at the air outlet of the fresh air mechanism (9); and a plurality of air supply interfaces (2) are arranged on the unit casing (1).

2. The integrated fresh air unit for the shipbuilding industry as claimed in claim 1 is characterized in that: The fresh air mechanism (9) comprises a shell (901), an air inlet (907) is arranged on the side wall of the shell (901), and a fan section, an electric heating section (904), a surface cooling section (905), a primary filter section (906), and an air inlet section are arranged in sequence in the shell (901); the air inlet (907) is arranged on the side wall plate of the air inlet section.

3. The integrated fresh air unit for the shipbuilding industry as claimed in claim 1 is characterized in that: Each air supply interface (2) is externally connected to an air supply duct.

4. The integrated fresh air unit for the shipbuilding industry as claimed in claim 1 is characterized in that: Each air supply interface (2) is equipped with an air valve (7).

5. The integrated fresh air unit for the shipbuilding industry as claimed in claim 1 is characterized in that: The air supply interface (2) is arranged on the upper part of the unit casing (1).

6. The integrated fresh air unit for the shipbuilding industry as claimed in claim 1 is characterized in that: The air supply interface (2) is connected to the outlet of the static pressure box (8).

7. An integrated fresh air unit for shipbuilding industry as claimed in any one of claims 1 to 6, characterized in that: The side wall of the unit housing (1) is provided with rainproof shutters (5).

8. An integrated fresh air unit for shipbuilding industry as claimed in any one of claims 1 to 6, characterized in that: A skylight (6) is arranged on the top of the unit casing (1).

9. An integrated fresh air unit for shipbuilding industry as claimed in any one of claims 1 to 6, characterized in that: A plurality of unit inspection doors (3) are arranged on the unit casing (1).

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