Mobile carbon fiber modular waste heat extraction and refrigeration unit

Abstract

This utility model relates to the field of refrigeration equipment technology, and provides a mobile carbon fiber container waste heat extraction and refrigeration device, including a carbon fiber container and a water supply tank, a water supply pump, a refrigerant water pump, a seawater heat exchanger, and at least one air-cooled chiller unit installed inside the carbon fiber container. The carbon fiber container has a first inlet, a first outlet, a second inlet, a second outlet, and a water supply interface. The first inlet of the carbon fiber container is used to connect to the secondary side outlet of the waste heat exchanger, and the first outlet of the carbon fiber container is used to connect to the secondary side inlet of the waste heat exchanger. The second inlet of the carbon fiber container is used to connect to the seawater submersible pump, and the second outlet of the carbon fiber container is used to introduce seawater. The first inlet of the carbon fiber container is connected to the inlet of the refrigerant water pump. This utility model can remove waste heat from user equipment from the waste heat exchanger, realize waste heat extraction and refrigeration from the waste heat exchanger, and ensure continuous and stable extraction of waste heat from the user end.

Description

Technical Field

[0001] This utility model relates to the field of refrigeration equipment technology, and in particular to a mobile carbon fiber container waste heat extraction and refrigeration device. Background Technology

[0002] When a ship's power plant is operating normally, its onboard seawater cooling system can remove waste heat generated by the equipment through a waste heat exchanger. However, when the ship is berthed, undergoing dry-dock maintenance, or in the event of an emergency, the ship's onboard cooling system may malfunction. In such cases, waste heat and latent heat from the equipment must be removed by an external waste heat removal device to ensure the safety of the ship's power plant. The waste heat removal system is a crucial guarantee for the safety of a ship during normal operation and berthing.

[0003] Currently, when ships need to be moored during repairs, seawater is directly introduced to cool them down. However, this method results in a small amount of cooling, poor cooling effect, and low heat exchange efficiency. Furthermore, because seawater is directly connected to the equipment, any leaks can cause significant inconvenience to the cabins. Utility Model Content

[0004] This utility model mainly addresses the technical problems of low heat exchange efficiency, poor heat exchange effect, and inconvenience in the current method of cooling with seawater. It proposes a mobile carbon fiber container waste heat export and refrigeration device to provide low-temperature cooling seawater or fresh water to the waste heat exchanger, and to remove the waste heat from the user equipment from the waste heat exchanger, thereby realizing the waste heat export and refrigeration of the waste heat exchanger and ensuring the continuous and stable export of waste heat from the user end.

[0005] This utility model provides a mobile carbon fiber container waste heat export and refrigeration device, including: a water tank 2, a water pump 3, a refrigerant water pump 6, a seawater heat exchanger 7, and at least one air-cooled chiller unit 4 inside the carbon fiber container 1.

[0006] The carbon fiber container 1 has a first inlet 14, a first outlet 15, a second inlet 16, a second outlet 17, and a water supply interface 18.

[0007] The first inlet 14 of the carbon fiber cabin 1 is used to connect with the secondary side outlet of the residual heat exchanger 11, and the first outlet 15 of the carbon fiber cabin 1 is used to connect with the secondary side inlet of the residual heat exchanger 11.

[0008] The second inlet 16 of the carbon fiber cabin 1 is used to connect with the seawater submersible pump 8, and the second outlet 17 of the carbon fiber cabin 1 is used to introduce seawater.

[0009] The first inlet 14 of the carbon fiber modular container 1 is connected to the inlet of the chilled water pump 6;

[0010] The outlet of the chilled water pump 6 is connected to the inlet of the air-cooled chiller unit 4 and the primary inlet of the seawater heat exchanger 7.

[0011] The outlet of the air-cooled chiller unit 4 is connected to the first outlet 15 of the carbon fiber container 1.

[0012] The primary outlet of the seawater heat exchanger 7 is connected to the first outlet 15 of the carbon fiber container 1; the secondary inlet of the seawater heat exchanger 7 is connected to the second inlet 16 of the carbon fiber container 1; and the secondary outlet of the seawater heat exchanger 7 is connected to the second outlet 17 of the carbon fiber container 1.

[0013] The inlet of the water supply tank 2 is connected to the water supply interface 18; the outlet of the water supply tank 2 is connected to the inlet of the water supply pump 3, and the outlet of the water supply pump 3 is connected to the inlet of the refrigerant water pump 6.

[0014] Preferably, an expansion tank 5 is installed in front of the inlet of the refrigerant water pump 6.

[0015] Preferably, the number of the air-cooled chiller units 4 is two sets; the two sets of air-cooled chiller units 4 are arranged side by side.

[0016] Preferably, the air-cooled chiller unit 4 is suitable for seawater heat exchange medium;

[0017] The air-cooled chiller unit 4 is equipped with sacrificial anode protection devices at both its inlet and outlet.

[0018] Preferably, the water replenishment tank 2, water replenishment pump 3, refrigerant water pump 6, seawater heat exchanger 7, and air-cooled chiller unit 4 are installed inside the carbon fiber container 1 via base 12.

[0019] The carbon fiber modular cabin 1 has multiple doors;

[0020] The top of the carbon fiber modular cabin 1 is detachable, and the top of the carbon fiber modular cabin 1 is equipped with an electrically operated sliding ventilation cabin top plate.

[0021] The carbon fiber modular cabin 1 is equipped with a split-type air conditioner.

[0022] Preferably, a tube winding machine 10 is also provided on the base 12.

[0023] Preferably, the seawater submersible pump 8 is covered with a filter cage 9;

[0024] The seawater submersible pump 8 and the filter cage 9 are placed inside the carbon fiber cabin 1 when not in use, and are hoisted outside the carbon fiber cabin 1 when in use.

[0025] Preferably, a first valve v01 is provided behind the first inlet 14 of the carbon fiber modular cabin 1;

[0026] A second valve v02 is installed in front of the first outlet 15 of the carbon fiber modular cabin 1;

[0027] A third valve v03 is installed in front of the air-cooled chiller unit 4;

[0028] A fourth valve v04 is installed in front of the primary side inlet of the seawater heat exchanger 7;

[0029] A sixth valve v06 is installed on the connecting pipeline between the first outlet 15 of the carbon fiber cabin 1 and the secondary inlet of the residual heat exchanger 11.

[0030] A seventh valve v07 is installed behind the secondary inlet of the seawater heat exchanger 7;

[0031] An eighth valve v08 is installed on the connecting pipeline between the first inlet 14 of the carbon fiber cabin 1 and the secondary outlet of the residual heat exchanger 11.

[0032] A ninth valve v09 is installed in front of the secondary side outlet of the seawater heat exchanger 7;

[0033] A tenth valve v10 is installed between the inlet of the water tank 2 and the water supply interface 18.

[0034] Preferably, a first pressure gauge P01, a first temperature monitoring gauge T01, and a first flow monitoring gauge F01 are installed at the rear of the air-cooled chiller unit 4;

[0035] A second pressure gauge P02 and a second temperature monitoring gauge T02 are installed in front of the chilled water pump 6;

[0036] A third pressure gauge P03, a third temperature monitoring gauge T03, and a third flow monitoring gauge F03 are installed behind the secondary inlet of the seawater heat exchanger 7.

[0037] A fourth pressure gauge P04 and a fourth temperature monitoring gauge T04 are installed in front of the secondary side outlet of the seawater heat exchanger 7.

[0038] Preferably, the seawater heat exchanger 7 is suitable for seawater heat exchange and has a detachable structure;

[0039] The mobile carbon fiber modular waste heat extraction and refrigeration device provided by this utility model has the following advantages compared with the prior art:

[0040] 1. This utility model relates to a mobile carbon fiber container waste heat removal and refrigeration device. Using a carbon fiber container as a carrier, a complete refrigeration system is designed according to waste heat load requirements. It can cool the fresh or seawater medium in the system, providing low-temperature cooled seawater or freshwater to the waste heat exchanger. It can also remove waste heat from the user equipment through the waste heat exchanger, achieving waste heat removal and refrigeration, thus ensuring the safety of the user's power unit. This utility model provides an external cooling device for ships. When the ship is under repair or otherwise without seawater cooling, it connects to the waste heat exchanger, providing a low-temperature cooling medium to remove waste heat or latent heat from the equipment, ensuring the normal operation of the waste heat removal system and guaranteeing a continuous and stable removal of waste heat from the user end, thereby ensuring the safety of the entire power unit.

[0041] 2. This unit is equipped with an air-cooled chiller, a highly efficient and corrosion-resistant unit specifically designed to handle seawater and salt spray environments. The evaporator uses titanium alloy heat exchange tubes, and the condenser uses corrosion-resistant black aluminum fins, making it stable for both fresh and seawater circulation applications. It also adapts well to the high-temperature, high-humidity, and high-salt salt spray environment of coastal areas. This provides a reliable guarantee for the long-term safe and stable operation of the system.

[0042] 3. The core equipment of the "normal operation mode" of this utility model is the air-cooled chiller unit. Two air-cooled chiller units are used in parallel to cool and reduce the temperature at the user end. When the heat load at the user end is less than 50%, one air-cooled chiller unit can be shut down, which can greatly improve the stability and safety of the system operation, and also effectively reduce the power consumption of the device.

[0043] 4. The core equipment of the "fault operation mode" of this utility model, the seawater heat exchanger, adopts a detachable structure. The plates are made of asymmetric corrugated titanium alloy material and adopt a crawler-type double sealing groove design. The entire heat exchanger has higher corrosion resistance, higher heat exchange efficiency, safer sealing, and more convenient maintenance.

[0044] 5. The outer shell of this device is designed as a carbon fiber container. Carbon fiber has a specific gravity less than 1 / 4 that of steel, yet its tensile strength is 7-9 times that of steel. It features high specific strength, strong environmental adaptability, good thermal insulation, and excellent watertightness. This greatly improves the strength, thermal insulation, and corrosion resistance of the device, facilitating its hoisting, transportation, operation, and maintenance.

[0045] 6. This utility model integrates all the main equipment into a mobile carbon fiber container, minimizing the overall size of the device. The instrumentation and electrical control components adopt a modular and miniaturized design, and are centrally installed in the same container as the main equipment. Only one main power cable needs to be plugged into the external electrical interface. The weight distribution of the entire device is relatively even, making it easier to hoist and transport, and less prone to tilting or rotation. Attached Figure Description

[0046] Figure 1 This is a schematic diagram of the structure of the mobile carbon fiber modular waste heat extraction and refrigeration device provided by this utility model.

[0047] Figure 2 This is a schematic diagram of the mobile carbon fiber modular waste heat extraction and refrigeration device provided by this utility model.

[0048] Attached reference numerals: 1. Carbon fiber container; 2. Water supply tank; 3. Water supply pump; 4. Air-cooled chiller unit; 5. Expansion tank; 6. Refrigerant water pump; 7. Seawater heat exchanger; 8. Seawater submersible pump; 9. Filter cage; 10. Tube rolling machine; 11. Excess heat exchanger; 12. Base; 13. Control box; 14. First inlet; 15. First outlet; 16. Second inlet; 17. Second outlet; 18. Water supply interface; 19. Electrical distribution cabinet; Detailed Implementation

[0049] To make the technical problems solved by this utility model, the technical solutions adopted, and the technical effects achieved clearer, this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0050] like Figure 1-2 As shown in the figure, a mobile carbon fiber container waste heat export and refrigeration device provided in this utility model embodiment includes: a water supply tank 2, a water supply pump 3, a refrigerant water pump 6, a seawater heat exchanger 7, and at least one air-cooled chiller unit 4, all located inside the carbon fiber container 1.

[0051] The water replenishment tank 2, water replenishment pump 3, refrigerant water pump 6, seawater heat exchanger 7, and air-cooled chiller unit 4 are installed inside the carbon fiber cabin 1 via base 12. The carbon fiber cabin 1 is movable and has six sides. After the entire cabin is assembled, it is fixedly connected to the base 12. Lifting brackets are located on the base 12 for lifting the entire cabin. The carbon fiber cabin 1 has multiple doors. Specifically, the left and right sides of the carbon fiber cabin 1 are respectively equipped with control room doors, equipment room doors, chiller unit ventilation doors, and chiller unit maintenance doors. The top of the carbon fiber cabin 1 is detachable and is equipped with an electrically operated sliding ventilation top panel. The front of the carbon fiber cabin 1 has a swing door for the equipment control room, facilitating personnel access for maintenance. The interior of the carbon fiber cabin 1 is equipped with a split-type air conditioner, a power supply box, and a ladder to the top. The rear of the carbon fiber cabin 1 has a tilting ventilation door for the air-cooled chiller unit 4 and a maintenance door for the air-cooled chiller unit 4.

[0052] In this embodiment, the device is connected to the user terminal equipment via a rubber hose. A hose reel 10 is also provided on the base 12, with the hose attached inside the hose reel 10 for easy retraction and deployment. All hoses and connectors requiring assembly during operation can be placed inside the carbon fiber container 1. The hose is a rubber hose with built-in threaded steel wire, which has advantages such as a small bending radius, easy storage, light weight, and corrosion resistance. The hose connector is a quick-connect coupling, which is convenient for installation and disassembly, saving physical effort.

[0053] The carbon fiber container 1 has a first inlet 14, a first outlet 15, a second inlet 16, a second outlet 17, and a water supply interface 18. The first inlet 14 of the carbon fiber container 1 is used to connect to the secondary side outlet of the waste heat exchanger 11, and the first outlet 15 of the carbon fiber container 1 is used to connect to the secondary side inlet of the waste heat exchanger 11. The second inlet 16 of the carbon fiber container 1 is used to connect to the seawater submersible pump 8, and the second outlet 17 of the carbon fiber container 1 is used to introduce seawater. The first inlet 14 of the carbon fiber container 1 is connected to the inlet of the refrigerant water pump 6. Preferably, an expansion tank 5 is provided in front of the inlet of the refrigerant water pump 6.

[0054] The outlet of the chilled water pump 6 is connected to the inlet of the air-cooled chiller unit 4 and the primary inlet of the seawater heat exchanger 7; the outlet of the air-cooled chiller unit 4 is connected to the first outlet 15 of the carbon fiber container 1; there are two sets of air-cooled chiller units 4; the two sets of air-cooled chiller units 4 are arranged side by side.

[0055] The primary outlet of the seawater heat exchanger 7 is connected to the first outlet 15 of the carbon fiber container 1; the secondary inlet of the seawater heat exchanger 7 is connected to the second inlet 16 of the carbon fiber container 1, and the secondary outlet of the seawater heat exchanger 7 is connected to the second outlet 17 of the carbon fiber container 1; the inlet of the makeup water tank 2 is connected to the makeup water interface 18; the outlet of the makeup water tank 2 is connected to the inlet of the makeup water pump 3, and the outlet of the makeup water pump 3 is connected to the inlet of the chilled water pump 6.

[0056] In this embodiment, the air-cooled chiller unit 4 is suitable for seawater heat exchange medium and has a compressor, evaporator, and condenser. The compressor is a fully enclosed scroll compressor; the evaporator uses titanium alloy heat exchange tubes; and the condenser uses corrosion-resistant black aluminum fins. Sacrificial anode protection devices are installed at the inlet and outlet of the air-cooled chiller unit 4. The air-cooled chiller unit 4 continuously provides refrigerant at the required temperature through a refrigeration cycle. Considering that seawater cooling water flows year-round on the secondary side of the waste heat exchanger 11, even after the system has been drained, flushed, and filled with fresh water, a large amount of chloride ions will still remain in the refrigerant circulating water when the air-cooled chiller unit 4 is running. This results in the operating water quality being significantly different from that of conventional air conditioning refrigerant circulating water, hereinafter referred to as "freshwater-seawater." If the air-cooled chiller unit 4 is not made of special materials, it will inevitably cause corrosion and damage to the equipment itself, leading to a shortened service life. In response to this situation, the air-cooled chiller unit 4 in this device is a high-efficiency corrosion-resistant chiller unit specially designed to cope with seawater media and salt spray environment. The evaporator adopts titanium alloy heat exchange tubes and the condenser adopts anti-corrosion black aluminum fins. It can be stably used in freshwater circulation and can adapt well to the high temperature, high humidity and high salt spray environment of the coast.

[0057] Because the operating medium in the unit is fresh seawater, in addition to using a special material evaporator for the air-cooled chiller unit 4, all pipelines in this unit are galvanized anti-corrosion parts, and valves and pipeline accessories are made of 316L stainless steel. Sacrificial anode protection devices are installed at the inlet and outlet of the air-cooled chiller unit 4 to effectively prevent fresh seawater from corroding and damaging the system pipelines and the air-cooled chiller unit 4.

[0058] In this embodiment, the seawater heat exchanger 7 is suitable for seawater heat exchange and adopts a detachable structure for easy maintenance and disassembly. The plates of the seawater heat exchanger 7 are made of asymmetric corrugated titanium alloy material, and the sealing gasket of the seawater heat exchanger 7 has two track-type sealing grooves. The entire seawater heat exchanger 7 has higher corrosion resistance, higher heat exchange efficiency, safer sealing, and more convenient maintenance.

[0059] Because the heat exchanger 11 and the heat exchange medium circulation of this device are in a closed-loop system with a pump, a makeup water tank 2 and a makeup water pump 3 are installed to ensure stability and safety. This allows for initial water replenishment during operation and automatic pressure-controlled water replenishment during operation. On the system return water side, a seawater-resistant stainless steel expansion tank 5 is installed in front of the inlet of the chilled water pump 6 as a pressure stabilizing device for automatically adjusting the system pressure. This device can adjust the system pressure within a certain range, making the system operation more stable and safe. Based on the system capacity, one makeup water tank 2 and one makeup water pump 3 are provided. In the automatic operation mode, when the pressure value returned by the second pressure gauge P02 (return water pressure sensor) is lower than the set value, the makeup water pump 3 will automatically start, replenishing the water pressure in the system to the set value before automatically stopping.

[0060] In this embodiment, the seawater submersible pump 8 is covered by a filter cage 9; the filter cage 9 covers the seawater submersible pump 8 to prevent large foreign objects in the seawater from entering the pipeline. When not in use, the seawater submersible pump 8 and the filter cage 9 are placed inside the carbon fiber container 1, and can be hoisted outside the carbon fiber container 1 when in use. The seawater submersible pump 8 can be bolted to the base 12, and the filter cage 9 is fixed with an outer frame and lifting lugs made of angle steel. In an emergency, the top cover of the carbon fiber container 1 can be opened to hoist the seawater submersible pump 8 to the target location.

[0061] This waste heat extraction and refrigeration unit is equipped with multiple water filtration devices: a filter is installed at the first inlet 14 of the carbon fiber cabin 1 to prevent impurities from entering the air-cooled chiller 4 and the seawater heat exchanger 7, which could damage them and affect the cooling effect and equipment lifespan. A Y-type filter is installed at the second inlet 16 of the carbon fiber cabin 1 where the seawater submersible pump 8 connects to the waste heat extraction device to prevent impurities in the seawater from entering the user-side circulation system.

[0062] A control room is located at one end of the carbon fiber modular container 1. The rear of the control room is where the seawater submersible pump 8 is stored. The control room is separated from the equipment operating area by a partition wall, which reduces noise in the control room. An observation window is installed on the partition wall to monitor the equipment status at any time. The control room door is a single outward-opening door. Inside the control room are a power distribution cabinet 19 and a control box 13. The top cover of the control room is a movable and detachable structure, which facilitates the hoisting and removal of the control box 13 and the seawater submersible pump 8.

[0063] The protection level of the distribution cabinet 19 and control box 13 is not lower than IP43, and the incoming and outgoing lines are arranged in a bottom-in, bottom-out configuration. The power supply of the distribution cabinet 19 is 380V, and the control power is drawn from the power supply. The distribution cabinet 19 provides the required power to the air-cooled chiller unit 4, the chilled water pump 6, and the seawater submersible pump 8 through internal circuit breakers, contactors, thermal relays, etc., and also provides 220V power to power the auxiliary equipment inside the carbon fiber container 1. The distribution cabinet 19 is equipped with indicator lights for the power supply and control power supply, start / stop buttons and status indicator lights for the air-cooled chiller unit 4, the chilled water pump 6, and the seawater submersible pump 8, as well as incoming line voltmeters and ammeters. The distribution cabinet 19 provides electrical protection against short circuits and overloads. The control box 13 is equipped with monitoring system instrument acquisition, display, and storage devices, which can complete the storage of measurement information and electrical information, as well as screen operation and display. The control box 13's operating interface mainly includes indicator lights for the air-cooled chiller unit 4, each water pump, start / stop buttons, power indicator lights, power switches, and an emergency stop button. Voltage and current display meters are installed on the blank areas on both sides of the display interface.

[0064] To ensure personal and equipment safety, all electrical equipment and potentially energized metal parts are equipped with protective grounding. Grounding points are located on the metal structures of the equipment. Both distribution cabinet 19 and control box 13 are equipped with protective grounding. Distribution cabinet 19 and control box 13 meet the following protection standards: top, side, and rear protection ratings are no less than IP45, and front protection rating is no less than IP43. Distribution cabinet 19 and control box 13 are equipped with internal ventilation and heat dissipation systems, and the internal temperature of distribution cabinet 19 and control box 13 does not exceed 50 degrees Celsius.

[0065] A first valve v01 is installed behind the first inlet 14 of the carbon fiber container 1; a second valve v02 is installed in front of the first outlet 15 of the carbon fiber container 1; a third valve v03 is installed in front of the air-cooled chiller unit 4; a fourth valve v04 is installed in front of the primary side inlet of the seawater heat exchanger 7; a sixth valve v06 is installed on the connecting pipe between the first outlet 15 of the carbon fiber container 1 and the secondary side inlet of the waste heat exchanger 11; a seventh valve v07 is installed behind the secondary side inlet of the seawater heat exchanger 7; an eighth valve v08 is installed on the connecting pipe between the first inlet 14 of the carbon fiber container 1 and the secondary side outlet of the waste heat exchanger 11; a ninth valve v09 is installed in front of the secondary side outlet of the seawater heat exchanger 7; and a tenth valve v10 is installed between the connecting pipe between the inlet of the makeup water tank 2 and the makeup water interface 18. The terms "in front" and "rear" refer to the direction of liquid flow; the direction of liquid inflow is "in front," and the method of liquid outflow is "rear."

[0066] A first pressure gauge P01, a first temperature monitoring gauge T01, and a first flow monitoring gauge F01 are installed behind the air-cooled chiller unit 4; a second pressure gauge P02 and a second temperature monitoring gauge T02 are installed in front of the refrigerant water pump 6; a third pressure gauge P03, a third temperature monitoring gauge T03, and a third flow monitoring gauge F03 are installed behind the secondary inlet of the seawater heat exchanger 7; and a fourth pressure gauge P04 and a fourth temperature monitoring gauge T04 are installed in front of the secondary outlet of the seawater heat exchanger 7.

[0067] The first pressure gauge, P01, monitors the system's cooling water supply pressure; the second pressure gauge, P02, monitors the system's cooling water return pressure; the third pressure gauge, P03, monitors the seawater cooling water intake pressure; and the fourth pressure gauge, P04, monitors the seawater cooling water discharge pressure. These four pressure gauges not only display pressure values ​​locally but also transmit indications, alarms, and pressure gauge signals to the control cabinet for system status display and control.

[0068] The first flow meter, F01, is used to monitor the system's cooling water supply flow rate, and the third flow meter, F03, is used to monitor the seawater cooling water intake flow rate. Flow rate values ​​can be displayed locally, or indicators, alarms, and flow meter signals can be transmitted remotely to the control cabinet for system status display and control.

[0069] The first temperature monitoring meter T01 monitors the system's cooling water supply temperature; the second temperature monitoring meter T02 monitors the system's cooling water return temperature; the third temperature monitoring meter T03 monitors the seawater cooling water intake temperature; and the fourth temperature monitoring meter T04 monitors the seawater cooling water discharge temperature. These four temperature monitoring meters not only display the temperature values ​​locally but also transmit indication, alarm, and temperature meter signals remotely to the control box 13 for system status display and control.

[0070] The working principle of the mobile carbon fiber container waste heat extraction and refrigeration device of this utility model is as follows: the medium at the secondary side outlet of the waste heat exchanger 11 is connected to the waste heat extraction and refrigeration device through the seawater system discharge channel using a rubber hose. The medium enters the air-cooled chiller unit 4 through the refrigerant water pump 6 for refrigeration and cooling. The cooled secondary side medium is connected to the secondary side inlet of the waste heat exchanger 11 through the seawater system suction channel using a rubber hose to complete the heat transfer.

[0071] When the air-cooled chiller unit 4 is unavailable, the high-temperature medium from the secondary side outlet of the waste heat exchanger 11, after entering this waste heat extraction refrigeration device, no longer enters the air-cooled chiller unit 4, but instead enters the seawater heat exchanger 7 for heat exchange. The medium, after being cooled, enters the secondary side inlet of the waste heat exchanger 1, completing the heat transfer. On the other side, the secondary side (low-temperature side) of the seawater heat exchanger 7 is cooled and heated by the seawater driven by the seawater submersible pump 8. The emergency seawater submersible pump 8 can be lifted out of the module, placed in a suitable position, and seawater can be connected to the device through a rubber hose. After heat exchange in the seawater heat exchanger 7, the seawater is directly discharged back into the sea through the rubber hose, carrying away the system's heat.

[0072] This waste heat extraction and refrigeration device is equipped with a water supply interface 18, which is used to connect to an external water source system to replenish the water supply tank 2 of the waste heat extraction and refrigeration device. It can be used for initial water replenishment of the system, or to replenish water through the water supply tank 2 and the water supply pump 3 when the system is short of water.

[0073] Detailed working process of the mobile carbon fiber modular waste heat extraction and refrigeration device of this utility model:

[0074] 1. The waste heat extraction and refrigeration unit is started and put into operation.

[0075] This waste heat extraction and refrigeration device has two working states: "normal operation" and "fault operation". In the "normal operation" working state, the air-cooled chiller unit 4 cools the user side. In the "fault operation" working state, the air-cooled chiller unit 4 is shut down, and the seawater submersible pump 8 is turned on to drive the seawater heat exchanger 7 to exchange heat and cool the user side.

[0076] The device of this invention can support both automatic and manual modes in "normal operation" mode. In automatic mode, the power-on process is as follows:

[0077] 1) Manually close the seventh valve v07 and the ninth valve v09 of this waste heat extraction refrigeration device, and manually open the first valve v01 and the second valve v02.

[0078] 2) Open the sixth valve v06 and the eighth valve v08 on the secondary side of the residual heat exchanger 11.

[0079] 3) Open the fifth valve v05 to replenish water to the water tank 2 until the water level reaches the maximum, then close the tenth valve v10.

[0080] 4) Automatically open the third valve v03 and close the fourth valve v04. Check the outlet pressure value of the air-cooled chiller unit 4. If it is less than the specified value, automatically start the water supply pump 3 to inject water into the device. The air in the system pipeline can be discharged through the exhaust valve set at the high position until the system is full of water. When the outlet pressure value of the air-cooled chiller unit 4 reaches the specified value and the third valve v03 is detected to be open, the device reaches the state where the refrigerant water pump 6 can be started.

[0081] 5) Start the refrigerant water pump 6 and determine the circulation flow rate by detecting the pressure difference between the inlet and outlet of the air-cooled chiller unit 4. When the pressure difference is greater than the specified value, the flow rate reaches the start-up requirement. At the same time, detect other parameters. After all parameters are normal, the air-cooled chiller unit 4 is started and the unit enters normal operation. In normal operation, when the pressure difference is less than the specified value or a high or low pressure alarm occurs, the air-cooled chiller unit 4 will automatically alarm and shut down, and display and record the alarm information. After the alarm parameters return to normal, the unit will be restarted and operation will resume.

[0082] The above process can also be completed manually in manual mode. Air-cooled chiller unit 4 is operated in pairs, and the number of operating air-cooled chiller units 4 can be automatically adjusted according to the actual load at the user end. When the user end load is below 50%, one air-cooled chiller unit 4 is shut down, which can greatly improve the stability and safety of system operation, and also effectively reduce the power consumption of this waste heat extraction refrigeration unit.

[0083] 2. The waste heat extraction refrigeration unit has finished operating.

[0084] 1) Air-cooled chiller unit 4 is shut down;

[0085] 2) After the specified time (10 minutes), the refrigerant water pump 6 stops, the third valve v03 closes, and the system stops;

[0086] 3) When the device is not in use for a long time, the rubber hose can be removed and the drain valve set at the lowest point can be opened to drain the water stored in the device. After the water is drained, the first valve v01 and the second valve v02 can be connected with a hose, the water pump 3 can be manually turned on, and the water in the water tank 2 can be used to flush the pipeline. After flushing, the pipeline can be dried with a hot air blower and the pipeline port can be sealed with a blind flange.

[0087] 3. The waste heat extraction refrigeration unit is malfunctioning.

[0088] During the operation of this waste heat extraction refrigeration unit, when the air-cooled chiller unit 4 fails to operate due to a malfunction, the air-cooled chiller unit 4 will be shut down, the third valve v03 will automatically close, the fourth valve v04 will automatically open, and the seventh valve v07 and the ninth valve v09 will be manually opened to start the "fault operation" working state. The high-temperature return water from the user side will enter the seawater heat exchanger 7 through the fourth valve v04 for cooling and then return to the waste heat exchanger 11. On the other side, the seawater submersible pump 8 will be turned on, driving the emergency cooling water (seawater) through the seventh valve v07 and rubber hose to enter the seawater heat exchanger 7. After heat exchange is completed, it will be discharged to the sea through the ninth valve v09 and rubber hose.

[0089] After use, the mobile carbon fiber container waste heat extraction and refrigeration device of this utility model can be disassembled by removing the rubber hose, and the water pump 3 can be turned on to flush the entire pipeline system with the water in the water tank 2. After flushing, the pipeline is dried with a hot air blower, and the ports are sealed with blind flanges to keep the entire system dry. Depending on the actual storage conditions on site, the observation window of the control room can be opened periodically, and the split air conditioner can be used to dehumidify the entire waste heat extraction and refrigeration device to prevent damage to the equipment due to the humid storage environment.

[0090] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A mobile carbon fiber shelter waste heat extraction refrigeration device, characterized in that, include: The carbon fiber container (1) contains a water supply tank (2), a water supply pump (3), a chilled water pump (6), a seawater heat exchanger (7), and at least one air-cooled chiller unit (4). The carbon fiber container (1) has a first inlet (14), a first outlet (15), a second inlet (16), a second outlet (17), and a water supply interface (18); The first inlet (14) of the carbon fiber cabin (1) is used to connect with the secondary side outlet of the residual heat exchanger (11), and the first outlet (15) of the carbon fiber cabin (1) is used to connect with the secondary side inlet of the residual heat exchanger (11). The second inlet (16) of the carbon fiber cabin (1) is used to connect with the seawater submersible pump (8), and the second outlet (17) of the carbon fiber cabin (1) is used to introduce seawater. The first inlet (14) of the carbon fiber cabin (1) is connected to the inlet of the chilled water pump (6); The outlet of the chilled water pump (6) is connected to the inlet of the air-cooled chiller unit (4) and the primary side inlet of the seawater heat exchanger (7); The outlet of the air-cooled chiller unit (4) is connected to the first outlet (15) of the carbon fiber container (1); The primary outlet of the seawater heat exchanger (7) is connected to the first outlet (15) of the carbon fiber container (1); the secondary inlet of the seawater heat exchanger (7) is connected to the second inlet (16) of the carbon fiber container (1); and the secondary outlet of the seawater heat exchanger (7) is connected to the second outlet (17) of the carbon fiber container (1). The inlet of the water supply tank (2) is connected to the water supply interface (18); the outlet of the water supply tank (2) is connected to the inlet of the water supply pump (3), and the outlet of the water supply pump (3) is connected to the inlet of the refrigerant water pump (6).

2. The mobile carbon fiber shelter waste heat extraction refrigeration apparatus of claim 1, wherein, An expansion tank (5) is installed in front of the inlet of the refrigerant water pump (6).

3. The mobile carbon fiber shelter waste heat extraction refrigeration apparatus of claim 1, wherein, The number of the air-cooled chiller units (4) is two sets; the two sets of air-cooled chiller units (4) are set up side by side.

4. The mobile carbon fiber shelter waste heat extraction refrigeration apparatus of claim 3, wherein, The air-cooled chiller unit (4) is suitable for seawater heat exchange medium; The evaporator uses titanium alloy heat exchange tubes, and the condenser uses corrosion-resistant black aluminum fins. The air-cooled chiller unit (4) is equipped with sacrificial anode protection devices at its inlet and outlet.

5. The mobile carbon fiber shelter waste heat extraction refrigeration apparatus of claim 1, wherein, The water supply tank (2), water supply pump (3), chilled water pump (6), seawater heat exchanger (7), and air-cooled chiller unit (4) are installed inside the carbon fiber container (1) via a base (12); The carbon fiber modular cabin (1) has multiple doors; The top of the carbon fiber cabin (1) is detachable, and the top of the carbon fiber cabin (1) is equipped with an electrically operated sliding ventilation cabin top plate. The carbon fiber modular cabin (1) is equipped with a split-type air conditioner.

6. The mobile carbon fiber shelter waste heat extraction refrigeration apparatus of claim 5, wherein, A tube rolling machine (10) is also installed on the base (12).

7. The mobile carbon fiber shelter waste heat extraction refrigeration apparatus of claim 5, wherein, The seawater submersible pump (8) is covered with a filter cage (9); The seawater submersible pump (8) and filter cage (9) are placed inside the carbon fiber cabin (1) when not in use, and are hoisted outside the carbon fiber cabin (1) when in use.

8. The mobile carbon fiber shelter waste heat extraction refrigeration apparatus of claim 1, wherein, A first valve v01 is installed behind the first inlet (14) of the carbon fiber cabin (1); A second valve v02 is installed in front of the first outlet (15) of the carbon fiber container (1); A third valve v03 is installed in front of the air-cooled chiller unit (4); A fourth valve v04 is installed in front of the primary side inlet of the seawater heat exchanger (7); A sixth valve v06 is installed on the connecting pipeline between the first outlet (15) of the carbon fiber cabin (1) and the secondary side inlet of the residual heat exchanger (11); A seventh valve v07 is installed behind the secondary inlet of the seawater heat exchanger (7); An eighth valve v08 is installed on the connecting pipeline between the first inlet (14) of the carbon fiber cabin (1) and the secondary outlet of the residual heat exchanger (11); A ninth valve v09 is installed in front of the secondary side outlet of the seawater heat exchanger (7); A tenth valve v10 is installed between the inlet of the water supply tank (2) and the connecting pipe between the water supply interface (18).

9. The mobile carbon fiber shelter waste heat extraction refrigeration apparatus of claim 8, wherein, A first pressure gauge P01, a first temperature monitoring gauge T01, and a first flow monitoring gauge F01 are installed at the rear of the air-cooled chiller unit (4); A second pressure gauge P02 and a second temperature monitoring gauge T02 are installed in front of the chilled water pump (6); A third pressure gauge P03, a third temperature monitoring gauge T03, and a third flow monitoring gauge F03 are installed behind the secondary side inlet of the seawater heat exchanger (7). A fourth pressure gauge P04 and a fourth temperature monitoring gauge T04 are installed in front of the secondary side outlet of the seawater heat exchanger (7).

10. The mobile carbon fiber shelter waste heat extraction refrigeration apparatus of claim 1, wherein, The seawater heat exchanger (7) is suitable for seawater heat exchange and has a detachable structure.

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