Novel low-voltage direct-current air conditioner for ship

Abstract

The novel marine low-voltage direct-current air conditioner comprises an air conditioner module, a cooling water module and a power supply module, the air conditioner module comprises a base, a compressor, a condenser, an evaporator, a fan, an expansion valve and a plurality of connecting pipes, the compressor, the condenser, the evaporator, the fan, the expansion valve and the connecting pipes are arranged on the base, and the compressor is connected with the evaporator and the condenser through the connecting pipes. The evaporator is connected with the condenser through a connecting pipe, the cooling water module comprises a cooling water pump, a filter, a water inlet valve and a plurality of water supply pipes, and the power supply module is electrically connected with the air conditioner module and the cooling water module. According to the utility model, all the devices are integrated on one base, so that the size of the air conditioner module can be reduced, the occupied space is small, and the installation is convenient and fast. Meanwhile, the lithium battery is adopted to drive the air conditioner module and the cooling water module to operate, a generator set does not need to be arranged, use cost is reduced, occupied space is further reduced, and installation is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of marine equipment technology, specifically to a novel marine low-voltage DC air conditioner. Background Technology

[0002] As people's living standards improve, the requirements for the comfort of the cabin environment of various ships, especially the cabin environment of cruise ships, are getting higher and higher. Therefore, the demand for small marine air conditioning units is increasing.

[0003] Currently, on some small vessels, such as patrol boats under 10 meters, installing an air conditioning system requires not only installing the air conditioning unit but also a matching generator system. The generator system includes a generator set, cooling water system, exhaust system, and fuel supply system. For a small vessel, this system is complex and difficult to install, occupies a significant amount of space, and results in high air conditioning costs. Therefore, most small vessels currently forgo installing matching air conditioning systems, leading to a poor comfort experience for the crew.

[0004] Therefore, existing air conditioning systems suitable for small ships have the following disadvantages:

[0005] 1. Existing air conditioning units are complex to install, and their accessories take up a lot of space;

[0006] 2. Air conditioning units that use AC power must be equipped with a generator set;

[0007] 3. Using a generator set increases operating costs. Utility Model Content

[0008] This invention was developed to solve the above-mentioned problems, and its purpose is to provide a new type of marine low-voltage DC air conditioner.

[0009] This utility model provides a novel marine low-voltage DC air conditioner, characterized by comprising: an air conditioning module, a cooling water module, and a power supply module.

[0010] The air conditioning module includes a base, a compressor, a condenser, an evaporator, a fan, an expansion valve, and multiple connecting pipes mounted on the base. The compressor is connected to the evaporator and condenser via the connecting pipes, and the evaporator is connected to the condenser via the connecting pipes. The evaporator has a heat exchange chamber inside, and an air inlet communicating with the heat exchange chamber is opened on the outer wall of the evaporator. The fan is mounted on the evaporator and communicates with the heat exchange chamber.

[0011] The cooling water module includes a cooling water pump, a filter, an inlet valve, and multiple supply pipes. The cooling water pump is connected to the condenser via the supply pipes, the filter is connected to the cooling water pump via a supply pipe, and the inlet valve is connected to the filter via a supply pipe.

[0012] The power supply module is electrically connected to the air conditioning module and the cooling water module.

[0013] The novel marine low-voltage DC air conditioner provided by this utility model also has the following features: the filter is a seawater filter and the circulating water pump is a seawater pump.

[0014] The novel marine low-voltage DC air conditioner provided by this utility model also has the following feature: the compressor is a DC brushless inverter compressor.

[0015] The novel marine low-voltage DC air conditioner provided by this utility model also has the following feature: the condenser is a shell-and-tube condenser.

[0016] The novel marine low-voltage DC air conditioner provided by this utility model also has the following features: the power supply module includes a lithium battery and a transformer, the lithium battery is electrically connected to the compressor and the fan, and the transformer is electrically connected to the cooling water pump.

[0017] The novel marine low-voltage DC air conditioner provided by this utility model also includes the following feature: the control module is electrically connected to the power supply module, and is used to control the operation of the air conditioning module and the cooling water module through the power supply module.

[0018] Functions and effects of utility models

[0019] The novel marine low-voltage DC air conditioner of this invention integrates all components onto a single base, thus reducing the size of the air conditioning module and its footprint, thereby facilitating installation. Furthermore, the use of lithium batteries to power both the air conditioning and cooling water modules eliminates the need for a generator set, reducing operating costs and further minimizing space requirements, making installation even easier. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the air conditioning module and the cooling water module in this utility model;

[0021] Figure 2 This is a schematic diagram of the air conditioning module in this utility model;

[0022] Figure 3 This is a structural schematic diagram of the air conditioning module from another perspective in this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 10. Air conditioning module; 11. Base; 12. Compressor; 13. Condenser; 14. Evaporator; 141. Air inlet; 15. Fan;

[0025] 20. Cooling water module; 21. Cooling water pump; 22. Filter; 23. Inlet valve; 24. Water supply pipe. Detailed Implementation

[0026] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following embodiments are described in detail with reference to the accompanying drawings.

[0027] Example

[0028] Figure 1 This is a schematic diagram of the air conditioning module and cooling water module in this utility model. Figure 2 This is a structural schematic diagram of the air conditioning module in this utility model. Figure 3 This is a structural schematic diagram of the air conditioning module from another perspective in this utility model.

[0029] like Figures 1 to 3 As shown, this embodiment provides a novel marine low-voltage DC air conditioner, including: an air conditioning module 10, a cooling water module 20, a power supply module (not shown in the figure), and a control module (not shown in the figure).

[0030] In this embodiment, the air conditioning module 10 includes a base 11, a compressor 12, a condenser 13, an evaporator 14, a fan 15 disposed on the base 11, as well as an expansion valve (not shown in the figure) and multiple connecting pipes (not shown in the figure). The compressor 12 is connected to the evaporator 14 and the condenser 13 through the connecting pipes. The evaporator 14 is connected to the condenser 13 through the connecting pipes. The evaporator 14 has a heat exchange chamber inside. An air inlet 141 communicating with the heat exchange chamber is opened on the outer wall of the evaporator 14. The fan 15 is disposed on the evaporator 14 and communicates with the heat exchange chamber.

[0031] In this embodiment, the compressor 12 has two openings. One opening is connected to the condenser 13 via a connecting pipe, and the other opening is connected to the evaporator 14 via a connecting pipe. Preferably, the compressor 12 is a DC brushless inverter compressor, ensuring that the starting current of the compressor 12 is 0 and that the capacity is reserved at least 20%, thus making this invention conform to the concept of new energy development.

[0032] In this embodiment, the condenser 13 has four connection ports: one connection port is connected to the cooling water pump 21 via a connecting pipe; one connection port is connected to a drain pipe to discharge the used cooling water to the outside of the ship; one connection port is connected to the compressor 12; and one connection port is connected to the expansion valve via a connecting pipe. Preferably, the condenser 13 is a shell-and-tube type condenser.

[0033] In this embodiment, the evaporator 14 has a refrigerant passage and a hot / cold water passage inside. The outer wall of the evaporator 14 is provided with two refrigerant openings that communicate with the refrigerant passages. One refrigerant opening is connected to the expansion valve through a connecting pipe, and the other refrigerant opening is connected to the compressor 12. Preferably, the evaporator 14 is a plate evaporator.

[0034] In this embodiment, the cooling water module 20 includes a cooling water pump 21, a filter 22, an inlet valve 23, and multiple water supply pipes 24. The cooling water pump 21 is connected to the condenser 13 through the water supply pipes 24, the filter 22 is connected to the cooling water pump 21 through a water supply pipe 24, and the inlet valve 23 is connected to the filter 22 through a water supply pipe 24.

[0035] In this embodiment, the filter 22 is a seawater filter, and the cooling water pump 21 is preferably a seawater pump. This allows the present invention to be applied to various types of ships without the need for an external water pump, making the marine low-voltage DC air conditioner of the present invention smaller and easier to install.

[0036] In this embodiment, the power supply module includes a lithium battery and a transformer. The lithium battery is electrically connected to the compressor 12 and the fan 15, and is electrically connected to the cooling water pump 21 through the transformer. Since most water pumps on the market are 24V, the 48V 100AH ​​lithium battery converts the 48V DC power to 24V through the transformer before powering the cooling water pump 21.

[0037] In this embodiment, the control module is electrically connected to the power supply module and is used to control the operation of the air conditioning module 10 and the cooling water module 20 through the power supply module.

[0038] When using this invention for refrigeration, the user first uses the control module to control the operation of the compressor 12, fan 15, and water pump via the power supply module. Then, the refrigerant is compressed by the compressor 12 into a high-temperature, high-pressure gas that enters the shell-and-tube condenser 13. Simultaneously, seawater (or river water) is pumped to the shell-and-tube condenser 13 via the cooling water pump 21 to cool the high-temperature, high-pressure refrigerant, causing it to condense into a high-pressure refrigerant liquid. The high-pressure refrigerant liquid then passes through an expansion valve to reduce its pressure, becoming a gas-liquid two-phase flow before entering the plate evaporator 14. There, it exchanges heat with the air entering the heat exchange chamber through the air inlet 141. The air releases heat, its temperature decreases, and it is then delivered by the fan 15 to the ship's interior for cooling. The refrigerant absorbs heat from the air and evaporates into a low-pressure gas, which is then drawn back into the compressor 12, thus completing one refrigerant refrigeration cycle.

[0039] The role and effect of the embodiments

[0040] The novel marine low-voltage DC air conditioner of this invention integrates all components onto a single base, thus reducing the size of the air conditioning module and its footprint, thereby facilitating installation. Furthermore, the use of lithium batteries to power both the air conditioning and cooling water modules eliminates the need for a generator set, reducing operating costs and further minimizing space requirements, making installation even easier.

[0041] The above embodiments are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model.

Claims

1. A novel marine low voltage direct current air conditioner characterized in that, Comprise: Air conditioning module, cooling water module, and power supply module, The air conditioning module comprises a base, a compressor, a condenser, an evaporator, a fan, and an expansion valve and a plurality of connecting pipes provided on the base, the compressor is connected with the evaporator and the condenser through the connecting pipes, the condenser is connected with the expansion valve through a connecting pipe, the expansion valve is connected with the evaporator through a connecting pipe, the evaporator is connected with the condenser through the connecting pipe, the evaporator has a heat exchange cavity inside, an air inlet is formed in the outer wall of the evaporator and communicates with the heat exchange cavity, the fan is arranged on the evaporator and communicates with the heat exchange cavity, The cooling water module comprises a cooling water pump, a filter, a water inlet valve, and a plurality of water supply pipes, the cooling water pump is connected with the condenser through the water supply pipes, the filter is connected with the cooling water pump through a water supply pipe, and the water inlet valve is connected with the filter through a water supply pipe, The power supply module is electrically connected with the air conditioning module and the cooling water module.

2. The novel low-voltage direct-current air conditioner for ships according to claim 1, characterized in that: wherein, The filter is a seawater filter, and the cooling water pump is a seawater pump.

3. The novel low-voltage direct-current air conditioner for ships according to claim 1, characterized in that: wherein The compressor is a direct-current brushless variable-frequency compressor.

4. The novel low-voltage direct-current air conditioner for ships according to claim 1, characterized in that: wherein, The condenser is a double-pipe condenser.

5. The novel low-voltage direct-current air conditioner for ships according to claim 1, characterized in that: wherein The power supply module comprises a lithium battery and a transformer, the lithium battery is electrically connected with the compressor and the fan, and the transformer is electrically connected with the cooling water pump.

6. The novel marine low voltage DC air conditioner according to claim 1, characterized in that, Further comprising: A control module electrically connected with the power supply module, for controlling the air conditioning module and the cooling water module to operate through the power supply module.

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