Ship hot water circulation system

Abstract

The invention relates to the technical field of ship hot water systems, and discloses a ship hot water circulation system which comprises a hot water boiler, a hot water circulation system and a hot water circulation system. The hot water tank is connected with a water outlet of the hot water boiler, and the hot water tank is used for storing and supplying hot water; a hot water distribution network and user units, the hot water distribution network being for delivering hot water from the heat source to each user unit; the hot water distribution network further comprises a dynamic flow distributor, the complexity of a boiler hot water supply system is reduced, additional heating coils, two living water circulating pumps, pipelines, control valves and the like of the boiler are omitted, the cost is reduced, meanwhile, the dynamic flow distributor is installed at a key node of the hot water distribution network, and the hot water supply efficiency is improved. The hot water flow and pressure of each branch loop can be monitored in real time, the opening degree of the valve is automatically adjusted, it is ensured that balanced distribution of the flow can be achieved in the water using peak period, and the user experience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ship hot water systems, and in particular to a ship hot water circulation system. Background Art

[0002] Hot water boiler is one of the common heat sources for ships. There are generally two ways to provide heat sources on board: one is to heat the cabins, air conditioners and other equipment on board; the other is to directly provide a circulating hot water system to the upper construction area; Conventional requirements for hot water boilers and hot water systems are as follows: The heat source for the entire ship is supplied by a fuel hot water boiler, which provides heat for equipment that needs to be heated and heating and living services, and is equipped with a hot water circulation pump set and a domestic hot water circulation pump set; the boiler hot water system includes two systems: one is the onboard heating source, with an outlet / return water temperature of 90 / 70°C; the other is the domestic hot water source: outlet water temperature: 70°C; if Figure 1 As shown, the conventional hot water system is also equipped with a hot water pressure cabinet and two hot water pumps, which also provide domestic hot water for the upper construction area.

[0003] This conventional design is found to have problems with the hot water supply system when the ship's personnel use the maximum water load. The pressure and water volume of domestic hot water supply are difficult to balance and guarantee for the domestic water consumption of a large number of personnel (especially during peak water consumption), which may cause some users of the system to be unable to use hot water. In order to directly provide hot water for the upper building, the hot water boiler needs to add a separate heating coil, two domestic water circulation pumps and pipelines and control valves, etc. The boiler system is also relatively complicated; in addition, the hot water pressure cabinet system supplies water at the same time, and the system functions are also repeated. Summary of the invention

[0004] The object of the present invention is to provide a ship hot water circulation system to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a ship hot water circulation system, comprising: a hot water boiler, which is used to provide thermal energy for the hot water supply of the entire ship; a hot water cabinet, which is connected to the water outlet of the hot water boiler and is used to store and supply hot water; a hot water distribution network and user units, wherein the hot water distribution network is used to transport hot water from a heat source to each user unit; the hot water distribution network also includes a dynamic flow distributor, which is used to monitor the flow data of each water outlet and branch circuit in the hot water distribution network in real time, and adjust the opening of the valve according to the flow data, thereby dynamically distributing the water flow.

[0006] As a further illustration of the present invention, a flow regulating valve is installed on each water outlet point and branch circuit in the hot water distribution network, and the electric flow regulating valve is electrically connected to the dynamic flow distributor.

[0007] As a further illustration of the present invention, the water outlet and the water return outlet of the hot water cabinet are both provided with temperature sensors.

[0008] As a further description of the present invention, the hot water cabinet is a layered hot water cabinet, the interior of the hot water cabinet is divided into two layers by an insulation board, and a layered heater is provided in each layer of the hot water cabinet.

[0009] As a further explanation of the present invention, the two layers of the hot water cabinet are: a shipboard heating source layer and a domestic hot water source layer. The outlet water temperature of the shipboard heating source layer is controlled at - degrees Celsius, and the return water temperature is controlled at - degrees Celsius. The outlet water temperature of the domestic hot water source layer is controlled at - degrees Celsius.

[0010] As a further illustration of the present invention, a hot water circulation pump is provided on the pipeline between the hot water boiler and the hot water cabinet.

[0011] As a further illustration of the present invention, the user unit at least includes: an air conditioner, a main deck public cabin air conditioner, an oil residue tank, and a dirty lubricating oil tank.

[0012] As a further explanation of the present invention, it also includes a fault alarm module, which is electrically connected to the hot water boiler, the hot water cabinet, and the hot water distribution network respectively. The fault alarm module is used to issue an alarm when the water temperature and water pressure in the system are abnormal.

[0013] As a further explanation of the present invention, it also includes a remote control module, which is electrically connected to the hot water boiler, the hot water cabinet, and the hot water distribution network respectively. The remote control module is used to remotely access and operate the operating status of the ship's hot water circulation system, adjust system parameters, and realize remote management.

[0014] As a further description of the present invention, it also includes a data recording and storage module, which is used to save the operating data of the ship's hot water circulation system to provide data support for subsequent system optimization, fault diagnosis and energy efficiency evaluation.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The present invention analyzes the situation of domestic hot water users on board and uses hot water cabinets to supply water to meet the requirements. A pipeline is directly connected from the hot water boiler outlet to the hot water cabinet, and hot water is directly provided to the domestic hot water source and the heating source on board the ship through the hot water cabinet. This water supply system is simple and reliable, and is also easy for the crew to operate. The existing domestic hot water supply system of the hot water boiler system is eliminated, the complexity of the boiler hot water supply system is reduced, the additional heating coils of the boiler, two domestic water circulation pumps, pipelines and control valves are eliminated, and the cost is reduced. At the same time, a dynamic flow distributor is installed at the key node of the hot water distribution network, which can monitor the hot water flow and pressure of each branch circuit in real time, and automatically adjust the valve opening to ensure balanced distribution of flow even during peak water use, thereby improving user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The equipment flow chart of the existing ship hot water circulation system; Figure 2 This is an equipment flow chart of a ship hot water circulation system of the present invention; Figure 3 The present invention is a schematic diagram of the electrical connection relationship of a ship hot water circulation system.

[0017] In the figure: 1. hot water boiler; 2. hot water cabinet; 201. temperature sensor; 202. layered heater; 3. hot water distribution network; 301. dynamic flow distributor; 302. electric flow control valve; 4. water use unit. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] See also Figure 1-Figure 3 The present invention provides a technical solution: a ship hot water circulation system, comprising: a hot water boiler 1, which is used to provide heat energy for the hot water supply of the whole ship; the hot water boiler 1 is the core heat source of the whole hot water circulation system, responsible for providing stable heat energy for the whole ship. It adopts high-efficiency combustion technology, can quickly heat the water body, and maintain it within a set temperature range.

[0020] Hot water tank 2, hot water tank 2 is connected to the water outlet of hot water boiler 1, and is used to store and supply hot water; hot water tank 2 is connected to hot water boiler 1 as a hot water storage and buffer device, receives and stores high-temperature hot water. Its interior adopts a layered design, which is divided into a ship heating source layer and a domestic hot water source layer by an insulation board to meet the hot water needs of different areas and purposes. Each layer is equipped with a layered heater 202 to ensure that the water temperature is maintained within the set range.

[0021] Hot water distribution network 3 and user unit 4, the hot water distribution network 3 is used to transport hot water from the heat source to each user unit 4; the hot water distribution network 3 also includes a dynamic flow distributor 301, the dynamic flow distributor 301 is used to monitor the flow data of each water outlet and branch circuit in the hot water distribution network 3 in real time, and adjust the opening of the valve according to the flow data, so as to dynamically distribute the water flow. Real-time monitoring ensures that the system can respond quickly to flow changes to avoid water shortage or surplus in local areas. Reduce manual intervention and improve the intelligence and automation level of the system. Ensure that each user unit can obtain a stable supply of hot water even during peak water use periods.

[0022] like Figure 1 As shown, the conventional existing hot water system is also equipped with a hot water pressure cabinet and two hot water pumps, which also provide domestic hot water for the upper construction area. The heat source of the whole ship is supplied by a fuel hot water boiler, which provides heat source for equipment that needs heating and heating and living services. It is equipped with a hot water circulation pump group and a domestic hot water circulation pump group. The boiler hot water system contains 2 systems: one is the shipboard heating source and the other is the domestic hot water source.

[0023] A flow regulating valve 302 is installed on each water outlet and branch circuit in the hot water distribution network 3, and the electric flow regulating valve 302 is electrically connected to the dynamic flow distributor 301. The flow regulating valve 302 can accurately control the flow of hot water passing through it. By adjusting the opening of the valve, the flow adjustment can be achieved from fully closed to fully open to meet the hot water demand of different water outlets. In the hot water distribution network, water outlets at different locations may have pressure differences due to factors such as pipeline length and height difference. The flow regulating valve can help balance these differences and ensure that each water outlet can obtain a stable supply of hot water. By accurately controlling the flow, the flow regulating valve can avoid unnecessary heat loss and energy waste. In areas where a large amount of hot water is not required, the flow can be reduced, thereby reducing energy consumption.

[0024] The water outlet and the water return port of the hot water tank 2 are both provided with a temperature sensor 201. The temperature sensor 201 can continuously and accurately monitor the temperature of the water outlet and the water return port of the hot water tank. These temperature data are important bases for evaluating the operating status of the hot water system and adjusting the system parameters. By monitoring the water outlet temperature, it can be ensured that the hot water supplied to the user reaches the preset comfortable temperature range. At the same time, monitoring the water return port temperature helps to evaluate the utilization efficiency of hot water and prevent the hot water from being overcooled during the circulation process. When the temperature sensor detects an abnormal temperature, such as the water outlet temperature is too low or the water return port temperature is too high, an alarm can be promptly sent to the control system to remind the crew to check and maintain and avoid system failures. The data provided by the temperature sensor can be used to optimize the control strategy of the hot water system. For example, according to the temperature difference between the water outlet and the water return port, the heating power of the hot water boiler or the flow rate of the hot water circulation pump can be dynamically adjusted to achieve a more efficient hot water supply.

[0025] The hot water cabinet 2 is a layered hot water cabinet. The interior of the hot water cabinet 2 is divided into two layers by an insulation board. A layered heater 202 is provided in each layer of the hot water cabinet 2. The two layers of the hot water cabinet 2 are: a shipboard heating source layer and a domestic hot water source layer. The outlet water temperature of the shipboard heating source layer is controlled at 85-95 degrees Celsius, the return water temperature is controlled at 65-75 degrees Celsius, and the outlet water temperature of the domestic hot water source layer is controlled at 65-75 degrees Celsius. By being divided into two layers, the hot water cabinet can store and supply hot water with different temperature requirements respectively. The shipboard heating source layer requires a higher outlet water temperature to meet the heating requirements of specific equipment, while the domestic hot water source layer provides hot water temperature suitable for human use. This layered design avoids energy waste caused by directly using high-temperature hot water for low-temperature requirements. Since each layer has an independent heater and temperature control system, even if one layer fails or is maintained, the other layer can continue to work normally, ensuring the continuity and stability of hot water supply.

[0026] A hot water circulation pump is provided on the pipeline between the hot water boiler 1 and the hot water tank 2. The hot water circulation pump provides power to circulate hot water between the boiler and the hot water tank, avoiding hot water retention in the pipeline and ensuring uniform and timely hot water supply for the entire system. The hot water circulation pump usually adopts a centrifugal or axial flow working principle. The impeller is driven by a motor to rotate, thereby generating centrifugal force to suck hot water from the low-pressure area and push it to the high-pressure area, forming a circulating flow. The hot water circulation pump is provided on the pipeline between the hot water boiler 1 and the hot water tank 2 to ensure that the hot water forms a closed loop in the system to meet various hot water needs.

[0027] The user unit 4 at least includes: air conditioning, main deck public cabin air conditioning, oil residue tank, dirty lubricating oil tank.

[0028] It also includes a fault alarm module, which is electrically connected to the hot water boiler 1, the hot water cabinet 2, and the hot water distribution network 3. The fault alarm module is used to sound an alarm when the water temperature and water pressure in the system are abnormal. The fault alarm module collects the water temperature, water pressure and other parameter information of each key component in the hot water system in real time through sensors and monitoring equipment. The real-time monitored data is compared with the preset safety range. Once any abnormality is found (such as too high or too low water temperature, insufficient water pressure, etc.), the alarm mechanism is triggered immediately. When an abnormality is detected, the fault alarm module will sound an audible and visual alarm, and may notify relevant personnel through SMS, email or system interface. The alarm information usually includes the type of abnormality, the location of occurrence, and possible handling suggestions. The fault alarm module will also record each alarm information, including the time of occurrence, the type of abnormality, the handling result, etc., to provide data support for subsequent fault analysis and system optimization.

[0029] It also includes a remote control module, which is electrically connected to the hot water boiler 1, the hot water cabinet 2, and the hot water distribution network 3 respectively. The remote control module is used to remotely access and operate the operating status of the ship's hot water circulation system, adjust system parameters, and realize remote management.

[0030] It also includes a data recording and storage module, which is used to save the operating data of the ship's hot water circulation system and provide data support for subsequent system optimization, fault diagnosis and energy efficiency evaluation.

[0031] Managers can remotely access the control interface of the ship's hot water circulation system through computers, mobile phones or other smart devices, using the Internet or a dedicated network. This allows them to view the system's operating status, including key parameters such as water temperature, water pressure, and flow, anytime and anywhere.

[0032] Remote operation: In addition to viewing the status, managers can also remotely operate the system through the remote control module. For example, they can adjust the heating power of the hot water boiler, set the water temperature range of the hot water cabinet, change the flow distribution of the hot water distribution network, etc. These operations can be completed in an instant without having to go to the site in person. The remote control module allows managers to adjust various parameters of the system according to actual needs. These parameters may include but are not limited to heating temperature, operating speed of the circulation pump, threshold of fault alarm, etc. Through fine parameter adjustment, the performance of the system can be optimized, energy utilization efficiency can be improved, and unnecessary waste can be reduced. When the system fails, the remote control module can assist managers in fault diagnosis and troubleshooting. By remotely accessing the system's log files and real-time data, managers can quickly locate the problem and take appropriate measures to repair it. This greatly reduces the time and cost of troubleshooting. The remote control module can also record the system's operating data and generate corresponding reports and charts. These data are of great significance for analyzing the system's operating status, optimizing system performance, and predicting future needs. Through data analysis, managers can formulate management strategies and maintenance plans more scientifically.

[0033] The present invention analyzes the situation of domestic hot water users on board and uses hot water cabinets to supply water to meet the requirements. A pipeline is directly connected from the outlet of the hot water boiler 1 to the hot water cabinet 2, and hot water is directly provided to the domestic hot water source and the heating source on board the ship through the hot water cabinet 2. This water supply system is simple and reliable, and the operation of the crew is also simple. The existing domestic hot water supply system of the hot water boiler system is eliminated, the complexity of the boiler hot water supply system is reduced, and the additional heating coils, two domestic water circulation pumps, pipelines and control valves of the boiler are eliminated, thereby reducing costs. At the same time, a dynamic flow distributor is installed at the key node of the hot water distribution network, which can monitor the hot water flow and pressure of each branch circuit in real time, and automatically adjust the valve opening to ensure that the flow can be evenly distributed during peak water use, thereby improving user experience.

[0034] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the present invention.

Claims

1. A ship hot water circulation system, characterized in that: include: A hot water boiler (1), the hot water boiler (1) being used to provide thermal energy for hot water supply throughout the ship; A hot water cabinet (2), the hot water cabinet (2) being connected to the water outlet of the hot water boiler (1), and the hot water cabinet (2) being used to store and supply hot water; A hot water distribution network (3) and user units (4), wherein the hot water distribution network (3) is used to transport hot water from a heat source to each user unit (4); The hot water distribution network (3) further comprises a dynamic flow distributor (301), wherein the dynamic flow distributor (301) is used to monitor the flow data of each water outlet and branch circuit in the hot water distribution network (3) in real time, and to adjust the opening of the valve according to the flow data, thereby dynamically distributing the water flow.

2. A ship hot water circulation system according to claim 1, characterized in that: A flow regulating valve (302) is installed on each water outlet point and branch circuit in the hot water distribution network (3), and the electric flow regulating valve (302) is electrically connected to the dynamic flow distributor (301).

3. A ship hot water circulation system according to claim 1, characterized in that: The water outlet and the water return outlet of the hot water cabinet (2) are both provided with temperature sensors (201).

4. A ship hot water circulation system according to claim 3, characterized in that: The hot water cabinet (2) is a layered hot water cabinet; the interior of the hot water cabinet (2) is divided into two layers by a heat insulation board; and a layered heater (202) is provided in each layer of the hot water cabinet (2).

5. A ship hot water circulation system according to claim 4, characterized in that: The two layers of the hot water cabinet (2) are: a shipboard heating source layer and a domestic hot water source layer. The outlet water temperature of the shipboard heating source layer is controlled at 85-95 degrees Celsius, and the return water temperature is controlled at 65-75 degrees Celsius. The outlet water temperature of the domestic hot water source layer is controlled at 65-75 degrees Celsius.

6. A ship hot water circulation system according to claim 1, characterized in that: A hot water circulation pump is provided on the pipeline between the hot water boiler (1) and the hot water tank (2).

7. A ship hot water circulation system according to claim 1, characterized in that: The user unit (4) at least includes: an air conditioner, a main deck public cabin air conditioner, an oil residue tank, and a dirty lubricating oil tank.

8. A ship hot water circulation system according to claim 1, characterized in that: It also comprises a fault alarm module, which is electrically connected to the hot water boiler (1), the hot water cabinet (2) and the hot water distribution network (3) respectively, and is used to issue an alarm when the water temperature and water pressure in the system are abnormal.

9. A ship hot water circulation system according to claim 1, characterized in that: It also includes a remote control module, which is electrically connected to the hot water boiler (1), the hot water cabinet (2), and the hot water distribution network (3) respectively, and is used to remotely access and operate the operating status of the ship's hot water circulation system, adjust system parameters, and achieve remote management.

10. A ship hot water circulation system according to claim 1, characterized in that: It also includes a data recording and storage module, which is used to save the operating data of the ship's hot water circulation system to provide data support for subsequent system optimization, fault diagnosis and energy efficiency evaluation.

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