A unitary air conditioning unit for a ship

Abstract

This utility model discloses a unitary air conditioning unit for ships, including a unit base. An electrical control box is fixedly connected to the upper center of the unit base. A compressor is electrically connected to the left end of the electrical control box. A condenser is installed at the rear end of the compressor and is connected to the compressor. An mounting plate is fixedly connected to the unit base. This utility model unitary air conditioning unit uses a hot water heater for heating. Hot water heating only requires about 40°C to meet the requirements. Even if there is a pipe leak, it will not affect the machine or the surrounding environment. This unitary air conditioning unit can effectively solve the problems of high energy consumption, safety hazards, and the need for electric heating explosion-proof treatment in explosion-proof areas of existing unitary air conditioning units. It reduces material costs and also reduces the operating costs of unitary air conditioning units.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning unit technology, and in particular to a unit air conditioning unit for ships. Background Technology

[0002] Ships navigate various sea areas with complex weather conditions and variable climates. To provide a comfortable working and living environment for crew and passengers, air conditioning technology can create a suitable artificial climate within the cabins, improving the environment. However, the compact space structure of ships makes central air conditioning unsuitable. Therefore, individual cabin air conditioning units are often used to control the temperature and humidity parameters. Currently, these individual air conditioning units generally only have cooling functions; heating typically uses electric heating, resulting in an energy efficiency ratio of less than 1, high energy consumption, and increased operating costs. Furthermore, electric heating temperatures are typically above 100°C, posing a significant safety hazard if a malfunction occurs, potentially damaging the equipment or causing a fire. Moreover, in cabins requiring explosion-proof features, if the individual air conditioning units use electric heating, explosion-proof measures are necessary, increasing manufacturing costs and creating further safety risks.

[0003] In existing unitary air conditioning units, the energy consumption ratio of electric heating is less than 1, resulting in high energy consumption. Moreover, the temperature of the electric heating element is usually >100℃. When the fan and electric heating protection fail, the continuous heating will cause the internal temperature of the unitary air conditioning unit to rise continuously, potentially leading to a fire. In addition, some compartments storing hazardous chemicals require fire and explosion protection. Under normal circumstances, the electric heating element is treated with explosion protection, which increases the material cost of the unit and cannot completely eliminate safety hazards. Utility Model Content

[0004] The purpose of this utility model is to provide a unit air conditioning unit for ships, which solves the problem in the prior art that when the fan and electric heating protection are damaged, the electric heating will continue to heat up the inside of the unit air conditioning unit, thus causing a fire.

[0005] To achieve the above objectives, a unit air conditioning unit for ships is provided, including a unit base, an electrical control box fixedly connected to the upper center of the unit base, a compressor electrically connected to the left end of the electrical control box, a condenser installed at the rear end of the compressor, the compressor and the condenser being connected in communication, and an mounting plate fixedly connected to the unit base;

[0006] An evaporator is fixedly connected to the lower end of the mounting plate. The evaporator is connected to the condenser, and a system pipeline is installed at the connection between the evaporator and the condenser. A water pan is provided at the upper end of the electrical control box. The system pipeline is installed inside the water pan, and an expansion valve is installed on the system pipeline.

[0007] According to the aforementioned unit air conditioning unit for ships, a heater is fixedly connected to the upper end of the mounting plate.

[0008] According to the aforementioned unit air conditioning unit for ships, a fan base is fixedly connected to the upper inner side of the unit base, and a centrifugal fan is installed at the inner end of the fan base.

[0009] According to the aforementioned unit air conditioning unit for ships, an organic unit frame is provided at the inner end of the fan base.

[0010] According to the aforementioned unitary air conditioning unit for ships, an operation panel is mounted on the top of the unit's base.

[0011] According to the aforementioned unitary air conditioning unit for ships, an air outlet is provided at the end of the fan base away from the unit frame.

[0012] The above-mentioned solution has the following beneficial effects:

[0013] 1. The unit air conditioning unit of this utility model uses a hot water heater when heating. Hot water heating only requires about 40℃ to meet the requirements. Even if there is a pipe leak, it will not affect the machine or the surrounding environment. This unit air conditioning unit can effectively solve the problems of high energy consumption, safety hazards and the need for electric heating explosion-proof treatment in explosion-proof areas of existing unit air conditioning units. It reduces material costs and also reduces the operating costs of unit air conditioning units.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a schematic diagram of the overall structure of a unitary air conditioning unit for ships according to the present invention.

[0017] Figure 2 This is a flowchart illustrating the operation of a unitary air conditioning unit for ships according to this utility model.

[0018] Legend:

[0019] 1. Electrical control box; 2. Unit base; 3. Compressor; 4. System piping; 5. Expansion valve; 6. Centrifugal fan; 7. Condenser; 8. Water pan; 9. Evaporator; 10. Mounting plate; 11. Heater; 12. Fan base; 13. Unit frame; 14. Control panel; 15. Air outlet. Detailed Implementation

[0020] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0021] Reference Figure 1-2 This utility model discloses a unit air conditioning unit for ships, comprising a unit base 2. The unit base 2 is characterized by an electrical control box 1 fixedly connected to the upper center, a compressor 3 electrically connected to the left end of the electrical control box 1, a condenser 7 installed at the rear end of the compressor 3, and the compressor 3 connected to the condenser 7. An mounting plate 10 is fixedly connected to the unit base 2. The compressor 3 is located at the left end of the electrical control box 1 and fixed to the unit base 2. Its exhaust port is connected to the air inlet of the condenser 7 via a pipeline; its suction port is connected to the refrigerant outlet of the evaporator 9 via a pipeline, drawing in low-temperature, low-pressure refrigerant gas, compressing it into high-temperature, high-pressure gas, and discharging it.

[0022] An evaporator 9 is fixedly connected to the lower end of the mounting plate 10. The evaporator 9 is connected to the condenser 7, and a system pipe 4 is installed at the connection between the evaporator 9 and the condenser 7. A water pan 8 is installed at the upper end of the electrical control box 1. The system pipe 4 is installed inside the water pan 8, and an expansion valve 5 is installed on the system pipe 4. The condenser 7 is located at the rear end of the compressor 3 and is fixed to the unit base 2. The air inlet is connected to the exhaust pipe of the compressor 3. Its liquid outlet is connected to the inlet of the expansion valve 5 through the system pipe 4, and it is equipped with a seawater inlet and outlet interface. Seawater flows through the condenser tubes, carrying away the heat of the high-temperature and high-pressure refrigerant gas and condensing it into a high-pressure subcooled liquid. At the same time, the evaporator 9 is fixedly connected to the lower end of the mounting plate 10. The inlet is connected to the outlet of the expansion valve 5. The outlet is connected back to the suction port of the compressor 3 through a pipe and is located in the air flow channel. The indoor return air is drawn in by the centrifugal fan 6 and flows through the finned tube surface of the evaporator 9 for heat exchange.

[0023] A heater 11 is fixedly connected to the upper end of the mounting plate 10. The heater 11 is fixedly connected to the upper end of the mounting plate 10 and is provided with hot water inlet and outlet interfaces. Hot water provided by the ship's hot water system flows through the heater tube. When hot water is introduced, the air flowing over its surface is heated.

[0024] A fan base 12 is fixedly connected to the upper inner side of the unit base 2. A centrifugal fan 6 is installed at the inner end of the fan base 12. A unit frame 13 is set at the inner end of the fan base 12. An operation panel 14 is installed on the top of the unit base 2. An air outlet 15 is opened at the end of the fan base 12 away from the unit frame 13. The centrifugal fan 6 drives the air circulation, drawing in indoor return air from the unit return air inlet. The air is forced to flow through the surface of the evaporator 9 or heater 11 in sequence. After heat exchange, the air is sent into the air duct through the air outlet 15 on the fan base 2 and finally into the ship's cabin.

[0025] Working principle: During refrigeration, compressor 3 compresses the low-pressure refrigerant into a high-temperature, high-pressure gas and then it flows into condenser 7. Seawater is condensed through the cooling water inlet and outlet. The high-temperature, high-pressure refrigerant vapor in 7 is condensed into a subcooled liquid. The subcooled refrigerant liquid passes through the filter and is throttled and pressurized by expansion valve 5, becoming a low-temperature, low-pressure gas-liquid two-phase fluid that enters evaporator 9. The low-temperature refrigerant absorbs heat in evaporator 9 and becomes saturated vapor. The saturated vapor is then drawn back into compressor 3 through the pipeline to enter the next cycle. At the same time, the indoor circulating air is cooled by centrifugal fan 6 and then sent into the cabin.

[0026] During heating, the aforementioned refrigeration cycle system is shut down. Hot water enters the heating coil through the hot water inlet and outlet interfaces, exchanges heat with the air through the heating coil, and then leaves the heating coil. Meanwhile, the indoor air, heated by the heating coil, is then sent back into the cabin by fan 6. This achieves the purpose of heating.

[0027] This heating method only requires installing a heating coil inside the unitary air conditioning unit and pre-installing inlet and outlet water interfaces. This method has a simple structure, requires no additional electric heating wire, and eliminates concerns about fire hazards caused by continuous electric heating if the fan or electric heating protection device malfunctions. It is safe to use and eliminates the need for additional explosion-proof measures in some applications, saving material costs. Furthermore, electric heating has an energy consumption ratio of less than 1, resulting in high energy consumption. Using hot water for heating reduces energy consumption, aligning with the national call for energy conservation and emission reduction.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A unitary air conditioning unit for ships, comprising a unit base (2), characterized in that, An electrical control box (1) is fixedly connected to the upper center of the unit base (2). A compressor (3) is electrically connected to the left end of the electrical control box (1). A condenser (7) is installed at the rear end of the compressor (3). The compressor (3) is connected to the condenser (7). An installation plate (10) is fixedly connected to the unit base (2). An evaporator (9) is fixedly connected to the lower end of the mounting plate (10). The evaporator (9) is connected to the condenser (7), and a system pipeline (4) is installed at the connection between the evaporator (9) and the condenser (7). A water pan (8) is provided at the upper end of the electrical control box (1). The system pipeline (4) is installed inside the water pan (8), and an expansion valve (5) is installed on the system pipeline (4).

2. A unitary air conditioning unit for ships according to claim 1, characterized in that, A heater (11) is fixedly connected to the upper end of the mounting plate (10).

3. A unitary air conditioning unit for ships according to claim 1, characterized in that, A fan base (12) is fixedly connected to the upper inner side of the unit base (2), and a centrifugal fan (6) is installed at the inner end of the fan base (12).

4. A unitary air conditioning unit for ships according to claim 3, characterized in that, An assembly frame (13) is provided at the inner end of the fan base (12).

5. A unitary air conditioning unit for ships according to claim 1, characterized in that, An operation panel (14) is installed on the top of the unit base (2).

6. A unitary air conditioning unit for ships according to claim 4, characterized in that, An air outlet (15) is provided at the end of the fan base (12) away from the unit frame (13).

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