CN114655414B - High-energy-efficiency ship cooling system - Google Patents
High-energy-efficiency ship cooling system Download PDFInfo
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- CN114655414B CN114655414B CN202210346821.5A CN202210346821A CN114655414B CN 114655414 B CN114655414 B CN 114655414B CN 202210346821 A CN202210346821 A CN 202210346821A CN 114655414 B CN114655414 B CN 114655414B
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- water
- control valve
- water pump
- electric control
- heat exchange
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- 238000001816 cooling Methods 0.000 title claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 122
- 239000000498 cooling water Substances 0.000 claims description 14
- 239000003973 paint Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000013535 sea water Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007227 biological adhesion Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
- B63H21/383—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like for handling cooling-water
Abstract
The invention discloses a high-energy-efficiency ship cooling system, which comprises a main control unit with a human-computer interface and a plurality of water pump control units, wherein the water pump control units are connected with a water pump, the water pump is communicated to the outside of a ship through a water pipe, an electric control valve is arranged on the water pipe, an energy-efficiency control unit is connected between the main control unit and the water pump control units, a flow sensor and a temperature sensor are arranged at the joint of the water pump and the water pipe, the water pump is connected with the energy-efficiency control units, a storage battery pack is connected to the water pump, and the storage battery pack is simultaneously connected with a ship power station and a solar panel pack through a power supply switching device; compared with the existing ship cooling control system, the system is more energy-saving, has higher automation degree, ensures the stable operation of the cooling system more reliably, and also accords with the national big strategic trend of energy conservation, emission reduction and ship energy efficiency improvement.
Description
Technical Field
The invention belongs to the technical field of industrial control, and particularly relates to a high-energy-efficiency ship cooling system.
Background
The ship power equipment needs a cooling device, the existing ship cooling device is low in automation degree, special manpower is needed to be configured to manage the equipment, the cooling system is designed according to rated total cooling power of the whole ship in a design stage, and the actual cooling power is changed along with the change of sailing working conditions or engineering ship construction working conditions.
In many cases, the existing water cooling system has excessive water pump opening or water flow far exceeding the required flow, so that the limited white consumption of ship energy is caused. On the other hand, the source of energy for cooling is not green.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the green environment-friendly cooling control system capable of automatically controlling the flow according to the cooling power requirement, so as to improve the automation degree and the artificial intelligence degree of equipment, improve the utilization degree of green energy and the recovery utilization degree of heat energy, optimize the energy efficiency of the cooling system, and have the advantages of saving energy and simplifying the configuration of crews and the consumption of manpower.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a high-energy-efficiency ship cooling system, includes main control unit and a plurality of water pump control unit that pass through field bus and main control unit expandable connection with human-computer interface, and the water pump is connected to water pump control unit, and the water pump passes through the water pipe and communicates to the overboard, is provided with the automatically controlled valve who is connected with main control unit on the water pipe, main control unit and water pump control unit between be connected with energy efficiency control unit, water pump and water pipe junction be provided with flow sensor and temperature sensor, flow sensor and temperature sensor all are connected with energy efficiency control unit, the water pump on connect storage battery, storage battery pass through power switching device and connect ship power station and solar panel group simultaneously.
The high-energy-efficiency ship cooling system further comprises a heat exchanger connected with the solar panel group, wherein the inlet side of the water pipe is connected with the heat exchanger through a heat exchange water inlet pipe after passing through three branch pipes connected in parallel, the heat exchanger is connected to the outside of a ship through a heat exchange water outlet pipe, the heat exchange water outlet pipe and the heat exchange water inlet pipe are respectively provided with an electric control valve 1 and an electric control valve 2, a connecting pipeline between the heat exchange water outlet pipe and the heat exchange water inlet pipe is provided with an electric control valve 3, and the three branch pipes are respectively connected with a water pump 1 and an electric control valve 4, a water pump 2 and an electric control valve 5, and a water pump 3 and an electric control valve 6; the energy efficiency control unit analyzes the sea state, the navigational speed, the cooling power and other data according to the data of the flow sensor and the temperature sensor, decides whether to enter an energy efficiency control mode, and if so, selects a heat exchange mode or a non-heat exchange mode: in the heat exchange mode, when the temperature of the cooling water of the system is higher than that of the daily hot water system, the electric control valve 1 and the electric control valve 2 are opened, the electric control valve 3 is closed, heat is transferred to the daily hot water system, and the daily hot water system fully utilizes the redundant heat energy; in the non-heat exchange mode, when the temperature of the cooling water of the system is lower than or close to that of the domestic hot water system, the electric control valve 1 and the electric control valve 2 are closed, and the electric control valve 3 is opened.
The high-energy-efficiency ship cooling system adopts heat insulation paint on the inner surface and the outer surface of a water pipe.
The beneficial effects of the invention are as follows:
1, the energy efficiency management mechanism is provided, the heat dissipation working condition of ship operation is referred, and the energy consumption problems such as no-load low-load loss of cooling water are avoided, the energy consumption is saved, and the emission is reduced by means of frequency conversion driving flow control and the like.
And 2, fully utilizing green energy sources such as solar energy and the like.
And 3, the inner surface of the cooling waterway pipeline is smoother in surface and is less likely to adhere to marine organisms due to the adoption of the energy-saving environment-friendly paint, so that the internal resistance of the pipeline is reduced, and the aim of reducing the cooling energy consumption is fulfilled.
And 4, the cooling waterway is communicated with the marine daily hot water system through a valve, so that heat dissipation heat energy can be fully utilized in winter.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of an energy efficiency control unit of the present invention;
FIG. 3 is a schematic view of the waterway connection of the present invention;
FIG. 4 is a schematic flow chart of the control system of the present invention;
FIG. 5 is a schematic view of the structure of the heat exchanger of the present invention;
FIG. 6 is a schematic view of the structure of the top of the heat exchanger;
FIG. 7 is a schematic diagram of heat exchanger top AB and AC piping;
FIG. 8 is a schematic view of the structure of the bottom of the heat exchanger;
fig. 9 is a schematic diagram of the heat exchanger bottom AB and AC lines.
The reference numerals are as follows: 1-a main control unit, 2-an energy efficiency control unit, 3-a human-computer interface, 4-a water pump control unit, 5-a storage battery set, 6-a power supply switching device, 7-a ship power station and 8-a solar panel set.
Detailed Description
The invention will be further described with reference to the drawings and the specific examples.
The existing ship cooling system has the defects of uncontrollable energy consumption, waste of heat energy, lack of interfaces with an energy efficiency control system and the like under the large trend of the existing ship energy efficiency monitoring requirement, so that the invention provides the ship cooling system with high energy efficiency. The invention aims to improve the energy efficiency level of the ship cooling system, improve the automation degree of the ship cooling system, improve the safety degree of equipment, simplify the configuration of crews and the manpower budget and ensure the safety of ships.
As shown in fig. 1,2 and 3, the high-energy-efficiency ship cooling system disclosed by the invention comprises a main control unit 1 with a man-machine interface 3 and a plurality of water pump control units 4 which are connected with the main control unit 1 in an expandable manner through a field bus, wherein the water pump control units 4 are connected with a water pump, the water pump is communicated to the outside of a ship through a water pipe, an electric control valve connected with the main control unit 1 is arranged on the water pipe, and the outside seawater is discharged through the water pipe after entering the system through the water pipe to cool equipment to be cooled, so that circulation is completed.
The energy efficiency control unit 2 is connected between the main control unit 1 and the water pump control unit 4, the energy efficiency control unit 2 takes the control unit as a core, man-machine interaction can be realized by adopting a touch screen, a water pump and a water pipe are connected with each other, a flow sensor and a temperature sensor are both connected with the energy efficiency control unit 2, a storage battery 5 is connected to the water pump, and the storage battery 5 is simultaneously connected with a ship power station 7 and a solar panel set 8 through a power supply switching device 6.
The invention uses the solar panel set 8+ chargeable and dischargeable storage battery set 5 as an independent power supply for long-time use. The water heater is connected with a daily hot water system of a ship crew room, and can partially utilize cooling water to heat in winter. Through the switching of the power supply switching device 6, the ship power station 7 and the solar panel set 8 can be independently or parallelly connected with a storage battery of the water supply pump system for charging, and the solar energy green energy is fully utilized.
The signals input by the main control unit 1 of the present invention are: the system comprises various pump running state signals, control mode signals (manual and automatic), water pump real-time flow signals, cooling water inlet temperature signals, cooling water outlet temperature signals, silencing and fault confirmation signals.
The signals output by the main control unit 1 of the present invention are: and each pump starts and stops signals, adjusts the flow signals of the water pump, buzzers and alarm indicator lamp signals. The main control unit 1 collects water temperature, flow rate, controls the starting and stopping of the pump, and controls the opening and closing of the electromagnetic valves 1,2,3,4,5 and 6. The energy efficiency control unit 2 analyzes the sea state, the speed, the cooling power and other data to determine whether to enter an energy efficiency control mode. The human-machine interface 3 can see all the temperature, valve and electrical status data of the cooling system.
Under the sailing working condition required by the energy efficiency control of the whole ship, the control right of the system is given to the energy efficiency control unit 2 to be converted into an energy efficiency control mode. For example, in some sea conditions, the energy efficiency of the whole ship is highest when the ship sails at a low speed, and the corresponding cooling system should adjust the number of the cooling water pumps and the flow of the cooling water according to the change of the cooling power demand of the ship so as to achieve fine control of the cooling power consumption.
The priority of starting each water pump can be set, the water pump serving as a standby water pump is automatically started according to the preset starting priority under the condition that the flow is insufficient and the running water pump fails, and the flow control of the water pump takes the circulating water temperature as a control target. The interface modularization, the control algorithm modularization of water pump input/cut-off and flow, guarantee that the load of input can not make equipment cooling water temperature too high. And when the water temperature exceeds a system safety threshold, outputting an audible and visual alarm.
The invention also comprises a heat exchanger connected with the solar panel set 8 and the domestic hot water system, the inlet side of the water pipe is connected with the heat exchanger through a heat exchange water inlet pipe after passing through three branch pipes connected in parallel, the heat exchanger is connected to the outside of the ship through a heat exchange water outlet pipe, an electric control valve 1 and an electric control valve 2 are respectively arranged on the heat exchange water outlet pipe and the heat exchange water inlet pipe, an electric control valve 3 is arranged on a connecting pipeline between the heat exchange water outlet pipe and the heat exchange water inlet pipe, and a water pump 1 and an electric control valve 4, a water pump 2 and an electric control valve 5, and a water pump 3 and an electric control valve 6 are respectively connected to the three branch pipes; the energy efficiency control unit 2 analyzes the sea state, the navigational speed, the cooling power and other data according to the data of the flow sensor and the temperature sensor, decides whether to enter an energy efficiency control mode, and if so, selects a heat exchange mode or a non-heat exchange mode:
in the heat exchange mode, when the temperature of the cooling water of the system is higher than that of the daily hot water system, the electric control valve 1 and the electric control valve 2 are opened, the electric control valve 3 is closed, heat is transferred to the daily hot water system, and the daily hot water system fully utilizes the redundant heat energy.
In the non-heat exchange mode, when the temperature of the cooling water of the system is lower than or close to that of the domestic hot water system, the electric control valve 1 and the electric control valve 2 are closed, and the electric control valve 3 is opened.
The system of the invention has standardized control interface, the interface can adopt standardized input/output interface, including DC24V digital quantity input/output, 4-20 mA analog quantity input/output, standard field bus interface, can be realized on different controllers. The function of the load interface module can be standardized, the collected primary signals are preprocessed, the main control unit is convenient to read and process, the response time of the system is shortened, the modules are independent, and the number of the modules and the functional channels are expandable.
Pump control flow logic is shown in fig. 4. Selecting a proper T Upper limit of work T and T Lower limit of work The control effect can be achieved. T (T) Upper limit of work Lower than a domestic hot water system. T (T) Lower limit of work Lower than the highest temperature requirement of the cooling water.
The energy-saving environment-friendly finish paint is adopted on the inner surface of the water pipe, so that a very smooth and low-friction surface can be provided, the water resistance in the pipe is reduced, the possibility of biological adhesion of seawater in a pipeline of a seawater circulating system is reduced, the water resistance energy consumption is reduced, the inner surface and the outer surface of the pipeline of a daily hot water system are both coated with heat insulation paint, and the heat diffusion is prevented to achieve the purposes of energy conservation and emission reduction. As shown in fig. 4.
As shown in fig. 5 to 9, the cooling water is coiled around the heat exchanger by two groups of pipes for heat exchange, one group of AB pipes and one group of AC pipes, which are twisted by two metal pipes.
One end of the AB pipeline is led out from the top of the heat exchanger and is respectively connected to the electric control valve 1 and the solar water heater through the flange A11 and the flange B1, the other end of the AB pipeline is connected to the next layer of spiral surrounding heat exchanger, and after being led out from the bottom of the heat exchanger, the AB pipeline is respectively connected to the electric control valve 2 and the solar water heating system through the flange A12 and the flange C1.
One end of the AC pipeline is led out from the top of the heat exchanger and is respectively connected to the electric control valve 1 and the solar water heater through the water inlet flange A21 and the water inlet flange B2, the other end of the AC pipeline is connected to the next spiral surrounding heat exchanger, and after being led out from the bottom of the heat exchanger, the AC pipeline is respectively connected to the electric control valve 2 and the solar water heating system through the flange A22 and the flange C2.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and some practical embodiments, and variations and modifications may be made by those skilled in the art without departing from the inventive concept, which are all within the scope of the present invention.
Claims (2)
1. An energy efficient marine cooling system, characterized by: the water pump comprises a main control unit (1) with a human-computer interface (3) and a plurality of water pump control units (4) connected with the main control unit (1) through a field bus, wherein the water pump control units (4) are connected with a water pump, the water pump is communicated to the outside of a ship through a water pipe, an electric control valve connected with the main control unit (1) is arranged on the water pipe, an energy efficiency control unit (2) is connected between the main control unit (1) and the water pump control units (4), a flow sensor and a temperature sensor are arranged at the joint of the water pump and the water pipe, the flow sensor and the temperature sensor are both connected with the energy efficiency control unit (2), a storage battery pack (5) is connected with the water pump through a power supply switching device (6), the storage battery pack (5) is simultaneously connected with a ship power station (7) and a solar panel group (8) through the power supply switching device (6); the solar water heater is characterized by further comprising a heat exchanger connected with the solar panel group (8), wherein the inlet side of the water pipe is connected with the heat exchanger through a heat exchange water inlet pipe after passing through three branch pipes connected in parallel, the heat exchanger is connected to the outside of the ship through a heat exchange water outlet pipe, the heat exchange water outlet pipe and the heat exchange water inlet pipe are respectively provided with an electric control valve 1 and an electric control valve 2, a connecting pipeline between the heat exchange water outlet pipe and the heat exchange water inlet pipe is provided with an electric control valve 3, and the three branch pipes are respectively connected with a water pump 1 and an electric control valve 4, a water pump 2 and an electric control valve 5, and a water pump 3 and an electric control valve 6; the energy efficiency control unit (2) decides whether to enter an energy efficiency control mode according to the data of the flow sensor and the temperature sensor, and if so, selects a heat exchange mode or a non-heat exchange mode:
in the heat exchange mode, the electric control valve 1 and the electric control valve 2 are opened, and the electric control valve 3 is closed;
in the non-heat exchange mode, the electric control valve 1 and the electric control valve 2 are closed, and the electric control valve 3 is opened;
the cooling water path is formed by coiling two groups of pipelines on a heat exchanger for heat exchange, and a group of AB pipelines and a group of AC pipelines which are formed by twisting two metal pipelines; one end of the AB pipeline is led out from the top of the heat exchanger and is respectively connected to the electric control valve 1 and the solar water heater through the flange A11 and the flange B1, the other end of the AB pipeline is connected to the next layer of spiral surrounding heat exchanger, and after being led out from the bottom of the heat exchanger, the AB pipeline is respectively connected to the electric control valve 2 and the solar water heating system through the flange A12 and the flange C1; one end of the AC pipeline is led out from the top of the heat exchanger and is respectively connected to the electric control valve 1 and the solar water heater through the water inlet flange A21 and the water inlet flange B2, the other end of the AC pipeline is connected to the next spiral surrounding heat exchanger, and after being led out from the bottom of the heat exchanger, the AC pipeline is respectively connected to the electric control valve 2 and the solar water heating system through the flange A22 and the flange C2.
2. An energy efficient marine cooling system according to claim 1, wherein the inner and outer surfaces of the water pipe are provided with heat insulating paint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210346821.5A CN114655414B (en) | 2022-04-02 | 2022-04-02 | High-energy-efficiency ship cooling system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210346821.5A CN114655414B (en) | 2022-04-02 | 2022-04-02 | High-energy-efficiency ship cooling system |
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| Publication Number | Publication Date |
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| CN114655414A CN114655414A (en) | 2022-06-24 |
| CN114655414B true CN114655414B (en) | 2024-04-09 |
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| CN114655414A (en) | 2022-06-24 |
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