A laundry water supply system for large passenger ships

Abstract

The embodiment of the present application provides a laundry water supply system suitable for large passenger ships, comprising: a hot water storage cabinet, which is provided with a fresh water inlet and a water supply pipe for supplying water to a washing machine in a washing machine room; a technical water heater, which is communicated with the hot water storage cabinet through a first water inlet pipe and a first water outlet pipe provided with a storage cabinet circulating pump, heats the flowing fresh water through the supplied hot steam, and sends the formed hot water back to the hot water storage cabinet; a fresh water preheater, which is provided with a pipeline for circulating cylinder jacket water, is communicated with the first water inlet pipe through a second water inlet pipe and a second water outlet pipe, heats the flowing fresh water through the cylinder jacket water, and sends the heated fresh water back to the first water inlet pipe to be heated by the technical water heater again; and a control valve is arranged on the part of the first water inlet pipe between the second water inlet pipe and the second water outlet pipe. The system utilizes the waste heat generated by the generator set and repeatedly uses the hot water of the washing machine, thereby improving the utilization rate of heat energy.

Description

Technical Field

[0001] This invention relates to the field of marine laundry hot water energy treatment technology, and in particular to a laundry water supply system suitable for large passenger ships. Background Technology

[0002] For large passenger ships, due to the large number of people, many washing machines are installed to solve the laundry problem for crew and passengers. However, at the same time, the consumption of hot and cold water is also very large. Therefore, how to save the heat energy of hot water and achieve low-carbon and environmentally friendly ships will be particularly important.

[0003] Existing technologies offer limited consideration for energy recovery in shipboard laundry hot water supply, resulting in energy waste. Current laundry water supply systems simply supply cold fresh water to the washing machine via a heating tank. The system setup is quite simple; the cold and fresh water are divided into two parts. One part is heated by an electric heater before being used by the washing machine. The water used by the washing machine is then directly drained into the floor drain. There is no heat recovery process. (See [link to relevant documentation] for details.) Figure 1 As shown. Summary of the Invention

[0004] In view of the above-mentioned problems existing in the prior art, the present invention provides a washing water supply system suitable for large passenger ships, which uses the waste heat generated by the generator set to heat the washing fresh water, and at the same time, the hot water circulation pipeline of the washing machine enters the hot water storage tank for heat storage, so as to make the most of the thermal energy.

[0005] This invention provides a laundry water supply system suitable for large passenger ships, comprising:

[0006] A hot water storage tank is equipped with a fresh water inlet and a water supply pipe for supplying water to the washing machines in the washing room.

[0007] The technical water heater is connected to the hot water storage tank through a first inlet pipe and a first outlet pipe equipped with a storage tank circulation pump. It heats the flowing fresh water with supplied hot steam and sends the heated water back to the hot water storage tank.

[0008] A freshwater preheater has a pipeline for circulating cylinder liner water, and is connected to the first inlet pipe through a second inlet pipe and a second outlet pipe. It heats the freshwater flowing through the cylinder liner water and sends the heated freshwater back to the first inlet pipe for further heating by the technical water heater.

[0009] The portion of the first water inlet pipe located between the second water inlet pipe and the second water outlet pipe is equipped with a control valve.

[0010] In some embodiments of the present invention, the drain pipe of the washing machine in the washing machine room is connected to the hot water storage tank through a hot water circulation pipe. After the washing machine performs its last rinse, the control valve on the hot water circulation pipe is opened to send the water from the last rinse of the washing machine back to the hot water storage tank through the hot water circulation pipe.

[0011] In some embodiments of the present invention, the cylinder liner water is fresh water heated by the waste heat of the generator set;

[0012] When there is a lot of waste heat, the fresh water flowing through it is heated by the fresh water preheater and the heated fresh water is sent back to the first water inlet pipe.

[0013] When the generator produces less waste heat in its operating mode, the first shut-off valve on the second inlet pipe and the second shut-off valve on the second outlet pipe are closed, and the control valve is opened so that the fresh water flowing out of the hot water storage tank is directly heated by the technical water heater.

[0014] In some embodiments of the present invention, the second water inlet pipe and the second water outlet pipe are further provided with a connecting pipe on the side near the fresh water preheater for connecting the second water inlet pipe and the second water outlet pipe. The connecting pipe is provided with a third shut-off valve, and a temperature-controlled three-way valve that is simultaneously connected to the connecting pipe and the second water outlet pipe is provided at the end connected to the second water outlet pipe.

[0015] In some embodiments of the present invention, the technical water heater is connected to a hot steam pipeline, and the hot steam pipeline is equipped with a steam regulating valve;

[0016] The compressed air supply pipe of the steam regulating valve is connected to and connected to the control box, and the compressed air supply pipe supplies compressed air to the steam regulating valve.

[0017] The steam supply pipeline used to supply steam to the steam regulating valve is also equipped with a remote control valve for opening and closing, which is used to control the steam supply.

[0018] In some embodiments of the present invention, the first water outlet pipe is further provided with a temperature sensor for detecting the water outlet temperature of the water heater. The temperature sensor is connected to the control box. When the temperature detected by the temperature sensor exceeds the set temperature value, the control box controls the opening and closing remote control valve to close.

[0019] In some embodiments of the present invention, the hot water storage tank is equipped with a thermometer. If the temperature of the hot water storage tank is higher than a preset temperature value, when supplying water to the washing machine in the washing machine room, the cold water control valve on the cold water supply pipeline is opened at the same time to supply cold water to the washing machine in the washing machine room through the cold water supply pipeline.

[0020] Compared with existing technologies, the beneficial effects of the laundry water supply system for large passenger ships provided by this invention are: it has energy-saving and environmental protection effects; at the same time, since large passenger ships have as many as thirty or forty washing machines, it can also improve economic efficiency in the long run. It utilizes the waste heat generated by the generator set to heat the fresh water for laundry, and at the same time, it is designed with a circulation pipeline for the hot water from the washing machines to enter a hot water storage tank for heat storage, maximizing the utilization of thermal energy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the principle of the laundry water supply system on passenger ships in the prior art;

[0022] Figure 2 This is a schematic diagram of a laundry water supply system for large passenger ships provided in an embodiment of the present invention.

[0023] Figure Labels

[0024] 1. Energy storage tank circulating pump; 2. Hot water circulating pump; 3. Technical water heater; 4. Temperature sensor; 5. Steam regulating valve; 6. Remote control valve; 7. Temperature-controlled three-way valve; 8. Fresh water preheater; 9. Hot water energy storage tank; 10. Flow meter. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Various embodiments and features of this application are described herein with reference to the accompanying drawings.

[0027] These and other features of this application will become apparent from the following description of preferred forms of embodiments given as non-limiting examples, with reference to the accompanying drawings.

[0028] It should also be understood that although this application has been described with reference to some specific examples, those skilled in the art can certainly implement many other equivalent forms of this application, which have the features described in the claims and are therefore all within the scope of protection defined herein.

[0029] The above and other aspects, features and advantages of this application will become more apparent when taken in conjunction with the accompanying drawings and in view of the following detailed description.

[0030] Specific embodiments of this application are described below with reference to the accompanying drawings; however, it should be understood that the claimed embodiments are merely examples of this application, which can be implemented in various ways. Well-known and / or repeated functions and structures are not described in detail to ascertain the true intent based on the user's historical operations, and to avoid unnecessary or redundant details that would obscure this application. Therefore, the specific structural and functional details claimed herein are not intended to be limiting, but merely serve as the basis and representative basis for the claims to teach those skilled in the art to use this application in various ways with substantially any suitable detailed structure.

[0031] This specification may use the phrases “in one embodiment,” “in another embodiment,” “in yet another embodiment,” or “in other embodiments,” all of which may refer to one or more of the same or different embodiments according to this application.

[0032] This invention provides a laundry water supply system suitable for large passenger ships, such as... Figure 2 As shown, it includes:

[0033] Hot water storage tank 9 is equipped with a fresh water inlet and a water supply pipe for supplying water to the washing machines in the washing room;

[0034] The technical water heater 3 is connected to the hot water storage tank 9 through a first inlet pipe and a first outlet pipe equipped with a storage tank circulation pump 1, and heats the flowing fresh water with supplied hot steam, and sends the heated water back to the hot water storage tank 9.

[0035] The freshwater preheater 8 has a pipeline for circulating cylinder liner water and is connected to the first inlet pipe through the second inlet pipe and the second outlet pipe. It heats the freshwater flowing through the cylinder liner water and sends the heated freshwater back to the first inlet pipe for further heating by the technical water heater 3.

[0036] The portion of the first inlet pipe located between the second inlet pipe and the second outlet pipe is equipped with a control valve.

[0037] In this embodiment, the drain pipe of the washing machine in the washing room is connected to the hot water storage tank 9 through the hot water circulation pipe. After the washing machine rinses for the last time, the control valve on the hot water circulation pipe is opened to send the water from the last rinse back to the hot water storage tank 9 through the hot water circulation pipe. The water from the last rinse is relatively clean, and fresh water resources on the ship are relatively precious, so it is recycled here to save fresh water resources.

[0038] In this embodiment, the cylinder liner water is specifically fresh water heated by the waste heat generated by the generator set. When there is a lot of waste heat, the fresh water flowing through it is heated by the fresh water preheater 8 and the heated fresh water is sent back to the first water inlet pipe to achieve preliminary preheating of the fresh water, thereby reducing the heat required for the technical water heater 3 to heat the fresh water. When the waste heat generated by the generator operation mode is less, the first shut-off valve on the second water inlet pipe and the second shut-off valve on the second water outlet pipe can be closed, and the control valve can be opened so that the fresh water flowing out of the hot water storage tank 9 can be directly heated by the technical water heater 3.

[0039] In this embodiment, the second water inlet pipe and the second water outlet pipe are also provided with a connecting pipe on the side near the fresh water preheater 8 for connecting the second water inlet pipe and the second water outlet pipe. The connecting pipe is provided with a third shut-off valve, and a temperature control three-way valve 7 is provided at the end connected to the second water outlet pipe, which is simultaneously connected to the connecting pipe and the second water outlet pipe.

[0040] In some embodiments of the present invention, the technical water heater 3 is connected to a hot steam pipeline, and a steam regulating valve 5 is provided on the hot steam pipeline; the steam regulating valve 5 is connected to a compressed air supply pipe and connected to a control box, and the compressed air supply pipe supplies compressed air to the steam regulating valve 5; a remote control valve 6 is also provided on the steam supply pipeline used to supply steam to the steam regulating valve 5 to control the supply of steam.

[0041] In this embodiment, a temperature sensor 4 is also provided on the first water outlet pipe to detect the water temperature of the water heater 3. The temperature sensor 4 is connected to the control box. When the temperature detected by the temperature sensor 4 exceeds the set temperature value, the remote control valve 6 is closed by controlling the control box.

[0042] In some embodiments of the present invention, a thermometer is provided on the hot water storage tank 9. If the temperature of the hot water storage tank 9 is higher than a preset temperature value, the cold water control valve provided on the cold water supply pipeline is opened simultaneously when supplying water to the washing machine in the washing machine room, so as to supply cold water to the washing machine in the washing machine room through the cold water supply pipeline. Furthermore, a flow meter 10 is provided on both the cold water supply pipeline and the water supply pipe.

[0043] To facilitate understanding of the above technical solution, the principle of the above laundry water supply system is explained below:

[0044] In the aforementioned washing machine water supply system, when the generator generates relatively little waste heat, the freshwater preheater 8 can be bypassed, and the freshwater in the hot water storage tank 9 can be directly connected to the technical water heater 3. When the generator generates a significant amount of waste heat, the freshwater in the hot water storage tank 9 undergoes heat exchange through the freshwater preheater 8, achieving preliminary heating of the freshwater in the hot water storage tank 9. After preliminary heating, the water passes through the storage tank circulation pump 1 and enters the technical water heater 3 for further heating. The technical water heater 3 uses steam heating, and the steam intake can be adjusted based on the temperature feedback from the hot water outlet temperature sensor 4, thereby regulating the hot water temperature. After being heated by the technical water heater 3, the water, having reached a certain temperature, returns to the hot water storage tank 9 for hot water storage and is supplied to the washing machine during use.

[0045] A thermometer is installed on the hot water storage tank 9. When the hot water temperature inside is too high, the fresh water inlet valve that supplies cold water to the washing machine can be opened to achieve cold water supply. The water temperature can be adjusted manually. After the temperature is adjusted, the hot water in the hot water storage tank 9 is used to supply hot water for washing. At the same time, the hot water from the washing machine can re-enter the hot water storage tank 9 after passing through the washing hot water circulation pump 2 to store heat. At this time, the water from the last rinse of the washing machine can be sent back to the hot water storage tank 9 through the hot water circulation pipe.

[0046] As can be seen from the above technical solution, the laundry water supply system for large passenger ships provided by the above embodiments of the present invention has energy-saving and environmental protection effects. Furthermore, since large passenger ships have as many as thirty or forty washing machines, it can also improve economic efficiency in the long run. It utilizes the waste heat generated by the generator set to heat the fresh water for laundry. Simultaneously, it designs a circulation pipeline for the washing machine's hot water to enter the hot water storage tank 9 for heat storage, maximizing the utilization of thermal energy.

[0047] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to the present invention within its spirit and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of the present invention.

Claims

1. A laundry water supply system suitable for large passenger ships, characterized in that, include: A hot water storage tank is equipped with a fresh water inlet and a water supply pipe for supplying water to the washing machines in the washing room. The technical water heater is connected to the hot water storage tank through a first inlet pipe and a first outlet pipe equipped with a storage tank circulation pump. It heats the flowing fresh water with supplied hot steam and sends the heated water back to the hot water storage tank. A freshwater preheater has a pipeline for circulating cylinder liner water, and is connected to the first inlet pipe through a second inlet pipe and a second outlet pipe. It heats the freshwater flowing through the cylinder liner water and sends the heated freshwater back to the first inlet pipe for further heating by the technical water heater. Among them, the portion of the first water inlet pipe located between the second water inlet pipe and the second water outlet pipe is provided with a control valve; The drain pipe of the washing machine in the washing machine room is connected to the hot water storage tank through the hot water circulation pipe. After the washing machine rinses for the last time, the control valve on the hot water circulation pipe is opened to send the water from the last rinse of the washing machine back to the hot water storage tank through the hot water circulation pipe. The cylinder liner water is fresh water heated by the waste heat of the generator set; When there is a lot of waste heat, the fresh water flowing through it is heated by the fresh water preheater and the heated fresh water is sent back to the first water inlet pipe. When the generator produces less waste heat in its operating mode, the first shut-off valve on the second inlet pipe and the second shut-off valve on the second outlet pipe are closed, and the control valve is opened so that the fresh water flowing out of the hot water storage tank is directly heated by the technical water heater.

2. The laundry water supply system for large passenger ships according to claim 1, characterized in that, The second water inlet pipe and the second water outlet pipe are also provided with a connecting pipe on the side near the fresh water preheater to connect the second water inlet pipe and the second water outlet pipe. The connecting pipe is provided with a third shut-off valve, and a temperature-controlled three-way valve that is connected to both the connecting pipe and the second water outlet pipe is provided at the end connected to the second water outlet pipe.

3. The laundry water supply system for large passenger ships according to claim 1, characterized in that, The water heater is connected to a hot steam pipeline, and a steam regulating valve is provided on the hot steam pipeline. The compressed air supply pipe of the steam regulating valve is connected to and connected to the control box, and the compressed air supply pipe supplies compressed air to the steam regulating valve. The steam supply pipeline used to supply steam to the steam regulating valve is also equipped with a remote control valve for opening and closing, which is used to control the steam supply.

4. The laundry water supply system for large passenger ships according to claim 3, characterized in that, The first water outlet pipe is also equipped with a temperature sensor for detecting the water temperature of the water heater. The temperature sensor is connected to the control box. When the temperature detected by the temperature sensor exceeds the set temperature value, the control box controls the opening and closing remote control valve to close.

5. The laundry water supply system for large passenger ships according to claim 4, characterized in that, The hot water storage tank is equipped with a thermometer. If the temperature of the hot water storage tank is higher than the preset temperature value, when supplying water to the washing machine in the washing machine room, the cold water control valve located on the cold water supply pipeline will be opened at the same time to supply cold water to the washing machine in the washing machine room through the cold water supply pipeline.

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