Marine resource comprehensive utilization system

Abstract

The invention discloses a comprehensive utilization system for marine resources, which relates to the technical field of marine economy and comprises an evaporator, a wave energy conversion device, a solar heat collector, a shrimp heating device, a stirrer, a refrigerant circulating system, a refrigeration house and a fresh water tank. The evaporator is provided with a seawater inlet, a heating pipeline, a steam outlet, a salt discharge port and a wastewater inlet. The seawater inlet communicates with a water inlet pipeline which is provided with a water suction pump, and the wave energy conversion device drives the water suction pump. And the solar heat collector is communicated with the heating pipeline. The prawn heating device is provided with a prawn inlet, a clear water inlet, a cooked prawn outlet, a steam pipeline and a waste water outlet. The waste water outlet is communicated with the waste water inlet. The stirrer is provided with a stirring paddle, a cooked shrimp inlet, a salt inlet and a pickled shrimp outlet. The stirring paddle is driven by a wave energy conversion device, the salt inlet is communicated with the salt discharge port, and the fresh water tank is communicated with an outlet of the steam pipeline. The marine resource comprehensive utilization system can realize comprehensive utilization of various marine resources.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of marine economy and technology, and particularly relates to a marine resource comprehensive utilization system. BACKGROUND

[0002] With the increasing emphasis on sustainable development and blue ocean economy worldwide, the use of renewable energy such as wave energy and solar energy for marine product processing, seawater desalination, cold chain storage and wastewater treatment technology has attracted widespread attention. These technologies are of great significance for improving the resource self-sufficiency of coastal and island areas, reducing carbon emissions and developing high-value-added fishing economy.

[0003] At present, common shrimp processing usually adopts electric heating or steam boiler heating for pickling, and its heat energy source depends on fossil fuels or power grid power supply, which has high energy consumption cost and pollution. Although the traditional solar drying house or hot water system can utilize solar energy, it has single function and can only be used for heating or drying, and cannot solve the problems of fresh water supply and refrigeration at the same time. In terms of seawater desalination, reverse osmosis or multi-stage flash evaporation technology is mature, but it generally has problems such as high energy consumption, large equipment investment, strict pretreatment requirements, etc., and the concentrated brine produced may cause local ecological environment deterioration if directly discharged into the sea. Independent wave power generation device is mainly used to generate electric energy, which has single energy form and high cost of power grid connection or storage.

[0004] In addition, the existing technical solutions are mostly functionally isolated systems: the waste heat and by-products (concentrated brine / salt) generated by the seawater desalination system are often treated as waste heat and waste, which are not effectively utilized; the high-temperature wastewater generated in the shrimp processing process is also directly discharged, and the heat energy and water resources carried by it are wasted; and the refrigeration of the cold storage requires additional electric energy. This "one-size-fits-all" mode leads to low overall energy and resource utilization efficiency, long investment return period, and failure to form a complete technical system with internal circulation and synergistic effect.

[0005] Therefore, there is an urgent need in the art for an innovative integrated system that can efficiently couple various renewable energy technologies such as wave energy and solar energy, organically combine marine product processing, seawater desalination, by-product utilization, and refrigeration and storage with wastewater treatment, realize the cascade comprehensive utilization of energy and the "zero waste" circulation of materials, and ultimately form a compact, efficient, energy-saving, and environmentally friendly sustainable production system. SUMMARY

[0006] The present application aims to provide a marine resource comprehensive utilization system to solve the problems of the related art and realize the synergistic effect of renewable energy acquisition, marine product processing, seawater desalination, and wastewater heat recovery.

[0007] To achieve the above object, the present application provides the following scheme: The present application discloses a kind of ocean resources comprehensive utilization system, comprising: Evaporator, the evaporator has seawater import, heating pipeline, steam export, salt outlet and waste water import;The seawater import is communicated inlet pipeline, and water pump is arranged on the inlet pipeline; Wave energy conversion device, the wave energy conversion device can drive the water pump, and seawater is pumped to the evaporator; Solar collector, the solar collector is communicated with the heating pipeline, and continuously supplies hot water to the heating pipeline; Sea shrimp heating device, the sea shrimp heating device has sea shrimp import, fresh water import, cooked shrimp export, steam pipeline and waste water outlet;The inlet of the steam pipeline is communicated with the steam export;The waste water outlet is communicated with the waste water import; Stirrer, the stirrer has stirring paddle, cooked shrimp import, salt import and pickled shrimp outlet;The stirring paddle is driven by the wave energy conversion device;The salt import is communicated with the salt outlet; Refrigeration working medium circulation system, the refrigeration working medium circulation system has sequentially arranged primary evaporation section, primary condensation section, secondary evaporation section and secondary condensation section;The pipeline between the waste water outlet and the waste water import passes through the primary evaporation section;The secondary condensation section is communicated with the primary evaporation section; Cold storage, the cold storage is arranged adjacent to the secondary evaporation section; Fresh water pool, the fresh water pool is communicated with the outlet of the steam pipeline.

[0008] In some examples, the wave energy conversion device includes a floating ball, an air piston, an air duct, a one-way air valve, an impeller and a gear;The floating ball is used to float up and down with sea surface;The air piston is connected to the floating ball and is used to float with the floating ball;The air duct is in sliding fit with the air piston;The impeller is rotatably installed in the air duct and is used to be rotated by air flow when the air piston floats;The one-way air valve is installed on the air duct and is used to open when the air piston falls;The gear is in transmission connection with the impeller and is used to drive the water pump and the stirring paddle.

[0009] In some examples, the sea shrimp heating device has a plurality of heating layers; The steam pipeline comprises an inner pipeline in each heating layer and an outer pipeline outside the heating layer; the outer pipeline comprises a main pipeline, an inlet branch pipeline and an outlet branch pipeline; two ends of the inlet branch pipeline are communicated with an outlet of the inner pipeline and the main pipeline, and two ends of the outlet branch pipeline are communicated with an inlet of the inner pipeline and the main pipeline; a steam valve is arranged on the main pipeline between the inlet branch pipeline and the outlet branch pipeline, and on the main pipeline corresponding to the inlet branch pipeline of the heating layer other than the top layer. An inlet of the inner pipeline corresponding to the top heating layer of the steam pipeline is an inlet of the steam pipeline; and one end of the main pipeline on the downstream side of the inner pipeline of the bottom layer is an outlet of the steam pipeline.

[0010] In some examples, the shrimp inlet and the clean water inlet are located at the top of the heating layer, and the cooked shrimp outlet and the waste water outlet are located at the bottom of the heating layer.

[0011] In some examples, the heating layer is in the shape of a cuboid, the shrimp inlet and the cooked shrimp outlet are diagonally distributed, and the clean water inlet and the waste water outlet are diagonally distributed.

[0012] In some examples, the inner pipeline in the heating layer is in the shape of a snake.

[0013] In some examples, a bottomless drawer is slidably installed at the bottom of the inner side of the heating layer; the bottomless drawer can be pulled out through the cooked shrimp outlet after the cooked shrimp outlet is opened.

[0014] In some examples, a high-temperature waste water collecting box is arranged on the pipeline between the waste water outlet and the waste water inlet, the high-temperature waste water collecting box is located on the upstream side of the primary evaporation section, and a filtering device is arranged in the high-temperature waste water collecting box.

[0015] In some examples, the primary evaporation section is a generator for containing a refrigerant solution, the primary condensation section is a condenser, the secondary evaporation section is a refrigerant evaporator, and the secondary condensation section is a refrigerant absorber for containing a refrigerant solution; a pressure reducing valve is arranged between the condenser and the refrigerant evaporator; and the refrigerant absorber and the generator are communicated through two pipelines, one of which is provided with a solution pump.

[0016] In some examples, a sea water control valve is arranged at the sea water inlet, a salt discharge control valve is arranged at the salt discharge port, a steam control main valve is arranged at the steam outlet, and a waste water control valve is arranged at the waste water outlet.

[0017] The present application has the following technical effects relative to the related art: The marine resource comprehensive utilization system realizes comprehensive utilization of marine resources such as sea shrimp, seawater, marine light, and wave energy, maximizes the multi-value of marine resources, and realizes resource recycling and high efficiency and energy saving.

[0018] The wave energy drives the water pump and the stirring paddle throughout the process, and the solar energy provides continuous heat energy for seawater evaporation, so that the two types of clean energy replace traditional fossil energy and reduce system energy consumption and carbon emissions. Seawater is separated into salt and water through the evaporator, and the sea salt is directly used for shrimp seasoning. The pure fresh water generated after steam condensation is stored in the fresh water pool and can be used as domestic water or to supplement the fresh water demand of the shrimp heating device. The high-temperature wastewater generated by shrimp heating is returned to the evaporator, and the waste heat is fully recovered to assist seawater evaporation, reducing heat energy waste. The raw sea shrimp is processed into salted shrimp through steam heating and sea salt pickling, and is stored in the cold storage maintained by the refrigerant circulation system, completing the whole chain processing from marine raw materials to finished products.

[0019] Seawater, waste heat, and clean energy are all reused in multiple levels, and the resource utilization rate is significantly improved compared with the traditional single processing mode. There is almost no pollutant emission throughout the process, and the system is driven by renewable energy on the sea, which is in line with the concept of marine ecological protection and green development. The system integrates seawater desalination, marine processing, energy supply, and fresh-keeping storage functions, and is particularly suitable for scenarios such as islands and offshore aquaculture areas that lack traditional energy and fresh water resources, and has strong practicality and adaptability. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings described in the following only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0021] Fig. 1 FIG. 1 is a schematic diagram of a marine resource comprehensive utilization system in some examples of the present application; Fig. 2 FIG. 2 is a schematic diagram of a wave energy conversion device in some examples of the present application; Fig. 3 FIG. 3 is a schematic diagram of a shrimp heating device in some examples of the present application.

[0022] In the figure: 1-wave energy conversion device; 2-water pump; 3-solar heat collector; 4-seawater control valve; 5-salt discharge control valve; 6-steam control main valve; 7-waste water control valve; 8-evaporator; 9-shrimp heating device; 10-stirrer; 11-cold storage; 12-high-temperature waste water collection tank; 13-generator; 14-condenser; 15-refrigerant evaporator; 16-absorber; 17-solution pump; 18-fresh water pool; 101 - floating ball; 102 - air piston; 103 - one-way air valve; 104 - air pipe; 105 - impeller; 106 - gear; 901 - fresh water inlet; 902 - cooked shrimp outlet; 903 - steam pipe; 904 - sea shrimp inlet; 905 - waste water outlet; 906 - steam valve one; 907 - steam valve three; 908 - steam valve two; 909 - steam valve four. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0024] The present application aims to provide a marine resource comprehensive utilization system to solve the problems in the above-mentioned related technologies and realize the synergistic effect of renewable energy acquisition, marine product processing, seawater desalination and waste heat recovery.

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0026] Referring to Figs. 1-3 The present embodiment provides a marine resource comprehensive utilization system, which comprises an evaporator 8, a wave energy conversion device 1, a solar heat collector 3, a sea shrimp heating device 9, a stirrer 10, a refrigeration working medium circulation system, a cold storage 11 and a fresh water pool 18.

[0027] The evaporator 8 has a seawater inlet, a heating pipe, a steam outlet, a salt discharge port and a waste water inlet. The seawater inlet is communicated with a water inlet pipe, and a water pump 2 is arranged on the water inlet pipe. The wave energy conversion device 1 can drive the water pump 2 to pump seawater into the evaporator 8. The solar heat collector 3 is communicated with the heating pipe and continuously supplies hot water to the heating pipe. The sea shrimp heating device 9 has a sea shrimp inlet 904, a fresh water inlet 901, a cooked shrimp outlet 902, a steam pipe 903 and a waste water outlet 905. The inlet of the steam pipe 903 is communicated with the steam outlet. The waste water outlet 905 is communicated with the waste water inlet. The stirrer 10 has a stirring paddle, a cooked shrimp inlet, a salt inlet and a salted shrimp outlet. The stirring paddle is driven by the wave energy conversion device 1. The salt inlet is communicated with the salt discharge port. The refrigeration working medium circulation system has a primary evaporation section, a primary condensation section, a secondary evaporation section and a secondary condensation section arranged in sequence. The pipeline between the waste water outlet 905 and the waste water inlet passes through the primary evaporation section. The secondary condensation section is communicated with the primary evaporation section. The cold storage 11 is arranged adjacent to the secondary evaporation section. The fresh water pool 18 is communicated with the outlet of the steam pipe 903.

[0028] The working principle of the marine resource comprehensive utilization system of the present embodiment is as follows: The wave energy conversion device 1 converts the wave energy of seawater into mechanical energy to drive the rotation of the water pump 2, and pumps seawater into the evaporator 8. The solar energy collector 3 converts the solar energy on the sea into heat energy to warm the water, which is then sent into the heating pipeline of the evaporator 8 to heat the seawater in the evaporator 8, so that water vapor and precipitated sea salt are formed in the evaporator 8. The hot water in the heating pipeline of the evaporator 8 releases heat and then flows back to the solar energy collector 3 to be heated and warmed again. The precipitated sea salt at the bottom of the evaporator 8 can enter the stirrer 10 through the salt outlet and mix with cooked shrimp entering the stirrer 10 through the cooked shrimp inlet. The stirring paddle in the stirrer 10 rotates under the drive of the wave energy conversion device 1, so that the cooked shrimp and the sea salt are uniformly mixed, and the pickling of the cooked shrimp is completed. After pickling, the pickled shrimp is discharged from the pickled shrimp outlet and stored in the freezer 11 for frozen storage.

[0029] The cooked shrimp required by the stirrer 10 is provided by the sea shrimp heating device 9. Raw sea shrimp enters the sea shrimp heating device 9 through the sea shrimp inlet 904, and clean water for cooking raw sea shrimp enters the sea shrimp heating device 9 through the clean water inlet 901. The high-temperature steam generated in the evaporator 8 is discharged through the steam outlet and then enters the steam pipeline 903 of the sea shrimp heating device 9. The high-temperature steam in the steam pipeline 903 is cooled and condensed into pure fresh water after heat exchange, which is collected in the fresh water pool 18. The pure water in the sea shrimp heating device 9 is heated and boiled to obtain cooked shrimp and high-temperature waste water. The cooked shrimp is supplied to the cooked shrimp inlet of the stirrer 10 to complete the subsequent pickling process. The high-temperature waste water flows back to the evaporator 8 to further provide steam.

[0030] During the process of returning the high-temperature waste water to the evaporator 8, the high-temperature waste water passes through the primary evaporation section of the refrigerant circulation system, releases heat, and performs primary evaporation of the refrigerant. The primary evaporated refrigerant gas flows to the primary condensation section, condenses into a gas-liquid mixture, and then flows to the secondary evaporation section for secondary evaporation. After that, it flows to the secondary condensation section to condense into a liquid, and finally flows back to the primary evaporation section to complete the closed circulation of the refrigerant. The refrigerant provides cold energy in the secondary evaporation section, so that the adjacent freezer 11 decreases from room temperature to refrigeration temperature and maintains the temperature, providing a refrigeration environment for the pickled shrimp.

[0031] In the above process, the comprehensive utilization of marine resources such as sea shrimp, seawater, sunlight on the sea, and wave energy is achieved, which not only maximizes the multi-value of marine resources, but also realizes resource recycling and high efficiency and energy saving.

[0032] Wherein, the wave energy drives the whole process of the water pump 2 and the stirring paddle, and the solar energy provides continuous heat energy for seawater evaporation. The two types of clean energy replace traditional fossil energy, reducing system energy consumption and carbon emissions. Seawater is separated from salt through the evaporator 8, and sea salt is directly used for shrimp seasoning. The condensed steam generates pure fresh water, which is stored in the fresh water pool 18 and can be used as domestic water or to supplement the fresh water demand of the shrimp heating device 9. The high-temperature wastewater generated by the shrimp heating device is returned to the evaporator 8, and the waste heat is fully recovered to assist seawater evaporation, reducing heat energy waste. Raw shrimp is processed into salted shrimp through steam heating and salt curing, and then stored in the cold storage 11 maintained by the refrigerant circulation system, completing the whole chain processing from marine raw materials to finished products.

[0033] Seawater, waste heat, clean energy, and other resources are all multi-level reused, significantly improving resource utilization compared to traditional single processing mode. There is almost no pollutant emission, and it relies on renewable energy on the sea, which is in line with the concept of marine ecological protection and green development. The integrated seawater desalination, marine processing, energy supply, and fresh-keeping storage functions are particularly suitable for scenarios such as islands and offshore aquaculture areas that lack traditional energy and fresh water resources, and have strong practicality and adaptability.

[0034] In some examples, the wave energy conversion device 1 includes a floating ball 101, an air piston 102, an air pipe 104, a one-way air valve 103, an impeller 105, and a gear 106. The floating ball 101 is used to float up and down with the sea surface. The air piston 102 is connected to the floating ball 101 and is used to float with the floating ball 101. The air pipe 104 is in sliding fit with the air piston 102. The impeller 105 is rotatably installed in the air pipe 104 and is used to be pushed to rotate by air flow when the air piston 102 floats up. The one-way air valve 103 is installed on the air pipe 104 and is used to open when the air piston 102 falls. The gear 106 is in transmission connection with the impeller 105 and is used to drive the water pump 2 and the stirring paddle.

[0035] When the wave pushes the floating ball 101 to float up, it drives the air piston 102 to float up together, pressing the gas in the air pipe 104 towards the impeller 105, and pushing the impeller 105 to rotate in the forward direction. When the wave falls, the floating ball 101 falls with the wave under the action of gravity, driving the air piston 102 to fall together. At this time, the one-way air valve 103 opens under the negative pressure in the air pipe 104, and the impeller 105 will not rotate in the reverse direction. With the continuous fluctuation of the wave, the impeller 105 intermittently rotates in the forward direction, driving the water pump 2 to intermittently pump water through the transmission of the gear 106, thereby realizing the intermittent supply of seawater to the evaporator 8.

[0036] In the above process, the supply of seawater depends entirely on wave energy, without the need for additional functions, achieving the effects of energy saving and environmental protection.

[0037] The float 101 and the air piston 102 can be rigidly connected by a fixed connecting rod, or flexibly connected by a chain. The chain connection can reduce the instantaneous impact load exerted by the air piston 102 on the air pipe 104 and extend its service life.

[0038] For example, the lowest end of the air duct 104 is a vertical section, and the air piston 102 slides in this vertical section. Compared with setting the air piston 102 in an inclined section, the frictional resistance of its sliding up and down in the vertical section is smaller, which can reduce the energy loss caused by friction and improve the seawater pumping effect.

[0039] Obviously, the sidewall of the air duct 104 should be provided with a slot for the fixing rod or chain between the float 101 and the air piston 102 to pass through. Accordingly, the air piston 102 should have sufficient axial length so that at least a portion of it is located above the slot to meet the sealing conditions required when compressing air.

[0040] In some examples, the shrimp heating device 9 has multiple heating layers.

[0041] Steam piping 903 includes an inner piping located within each heating layer and an outer piping located outside the heating layer. The outer piping includes a main line, an inlet branch, and an outlet branch. The inlet branch connects to the outlet of the inner piping and the main line at both ends, and the outlet branch connects to the inlet of the inner piping and the main line at both ends. Steam valves are installed on the main line between the outlet branch and the inlet branch, as well as on the inlet branch corresponding to heating layers other than the top layer. These steam valves include steam valve one 906, steam valve two 908, steam valve three 907, and steam valve four 909.

[0042] The inlet of the inner pipe corresponding to the top heating layer is the inlet of steam pipe 903. The end of the main line located downstream of the bottom inner pipe is the outlet of steam pipe 903.

[0043] Taking a three-layer heating system as an example, if steam valve 3 (907) and steam valve 4 (909) are open, and steam valve 1 (906) and steam valve 2 (908) are closed, then: Steam discharged from evaporator 8 first enters the inner pipe of the third (top) heating layer, releases heat, and then enters the outer pipe from the top. After being transported downwards along the outer pipe for a distance, it enters the inner pipe of the second (middle) heating layer, releases heat, and then enters the outer pipe. After being transported downwards along the outer pipe for a distance, it enters the inner pipe of the first (bottom) heating layer, releases heat, and then enters the outer pipe. After continuing to be transported along the outer pipe for a distance, it reaches the outlet of steam pipe 903. Finally, the condensed pure fresh water flows into freshwater pool 18, and the remaining gas is discharged into the atmosphere.

[0044] Clearly, as steam travels through steam pipe 903, its temperature gradually decreases. Therefore, if the shrimp are heated simultaneously by all three heating layers, the third layer will have the highest temperature, followed by the second layer, and the first layer will have the lowest temperature. The shrimp in the third layer can be heated to 100 degrees Celsius, while the second and first layers only serve a preheating function. Afterward, the cooked shrimp and high-temperature wastewater from the third layer are discharged, and the third layer experiences virtually no further heat loss, allowing the second layer to be heated to 100 degrees Celsius.

[0045] If steam valve 1 (906) and steam valve 2 (908) are open, and steam valve 3 (907) and steam valve 4 (909) are closed, then: Steam only heats the third heating layer.

[0046] If steam valve 2 (908) and steam valve 3 (907) are open, and steam valve 1 (906) and steam valve 4 (909) are closed, then: Steam only heats the third and second heating layers.

[0047] If steam valve 1 (906) and steam valve 4 (909) are open, and steam valve 2 (908) and steam valve 3 (907) are closed, then: Steam only heats the third and first heating layers.

[0048] In some examples, the shrimp inlet 904 and the fresh water inlet 901 are located at the top of the heating layer, while the cooked shrimp outlet 902 and the wastewater outlet 905 are located at the bottom of the heating layer.

[0049] The above-mentioned upper and lower partitioning method ensures that when shrimp and water are added to the heating layer, the materials inside the heating layer will not leak out.

[0050] In some examples, the heating layer is rectangular in shape, with the shrimp inlet 904 and the cooked shrimp outlet 902 diagonally opposite each other, and the clean water inlet 901 and the wastewater outlet 905 diagonally opposite each other.

[0051] The above configuration avoids concentrating the openings on one side of the heating layer, thus ensuring balanced strength on both sides of the heating layer and preventing deformation.

[0052] In some examples, the internal piping within the heating layer is serpentine.

[0053] By using a serpentine pipeline design, the flow path length of steam within each heating layer is extended, thereby improving the heating effect of steam on the heating layer.

[0054] In some examples, a bottomless drawer is slidably installed on the bottom inner side of the heating layer. When the cooked shrimp outlet 902 is opened, the bottomless drawer can be pulled out from the cooked shrimp outlet 902.

[0055] The bottomless drawer slides into contact with the bottom plate of the heating layer below. After opening the cooked shrimp outlet 902, the cooked shrimp inside the bottomless drawer can be dragged towards the cooked shrimp outlet 902 by pulling out the bottomless drawer. After being dragged to the outside of the cooked shrimp outlet 902, the cooked shrimp fall directly down. The upper outer contour of the bottomless drawer should fit against the inner wall of the heating layer to ensure that all cooked shrimp fall into the inner side of the bottomless drawer and can be removed at once.

[0056] The above operation is simple and convenient. You only need to pull out the bottomless drawer, without having to use your arms or long poles to laboriously scoop out the cooked shrimp from the heating layer.

[0057] The shrimp inlet (904) and cooked shrimp outlet (902) are preferably equipped with swing-type sealing plates. The lower end of the swing-type sealing plate is hinged to the outer side of the heating layer around a horizontal axis. After the upper end of the swing-type sealing plate is attached to the heating layer, the shrimp inlet (904) and cooked shrimp outlet (902) can be sealed. After the upper end of the swing-type sealing plate is attached to the heating layer, the two can be fixed with fasteners such as pressure plates and screws to prevent them from opening automatically under the pressure inside the heating layer.

[0058] In some examples, a high-temperature wastewater collection tank 12 is installed on the pipeline between the wastewater outlet 905 and the wastewater inlet. The high-temperature wastewater collection tank 12 is located upstream of the primary evaporation section, and a filter device is installed inside the high-temperature wastewater collection tank 12.

[0059] The high-temperature wastewater collected in the high-temperature wastewater collection tank 12 is the wastewater after the shrimp are cooked, which usually includes some shrimp tissues, feces, dirt and other impurities. After filtering the above impurities in the high-temperature wastewater collection tank 12, it is sent to the evaporator 8 to avoid contamination of the sea salt precipitated in the evaporator 8 by the impurities.

[0060] In some examples, the primary evaporation section is a generator 13 for containing the refrigerant solution, the primary condensation section is a condenser 14, the secondary evaporation section is a refrigerant evaporator 158, and the secondary condensation section is a refrigerant absorber 16 for containing the refrigerant solution. A pressure reducing valve is installed between the condenser 14 and the refrigerant evaporator 158. The refrigerant absorber 16 is connected to the generator 13 via two pipelines, namely branch one and branch two, with a solution pump 17 installed on branch one.

[0061] During the return of high-temperature wastewater to evaporator 8, it passes through generator 13, releasing heat and causing the refrigerant in generator 13 to undergo initial evaporation. The refrigerant gas after initial evaporation flows to condenser 14, where it condenses into a gas-liquid mixture, and then flows through a pressure reducing valve to refrigerant evaporator 158. The remaining concentrated solution in generator 13 flows slowly downwards through branch two to refrigerant absorber 16. Due to the pressure reduction valve, the gas-liquid mixture undergoes secondary evaporation at refrigerant evaporator 158, and then flows to refrigerant absorber 16, where it is absorbed by the concentrated solution, diluting the concentrated solution in refrigerant absorber 16. Finally, the liquid refrigerant, driven by solution pump 17, returns to generator 13 through branch one, completing the closed-loop refrigerant cycle.

[0062] The cooling capacity provided by the refrigerant in the refrigerant evaporator 158 lowers the adjacent cold storage 11 from room temperature to refrigeration temperature and maintains the temperature, providing a refrigeration environment for pickled shrimp.

[0063] In some examples, a seawater control valve 4 is installed at the seawater inlet, a salt discharge control valve 5 is installed at the salt discharge outlet, a steam control main valve 6 is installed at the steam outlet, and a wastewater control valve 7 is installed at the wastewater outlet 905.

[0064] The valves described above can control the flow of seawater, sea salt, steam, and wastewater.

[0065] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A comprehensive marine resource utilization system, characterized in that, include: An evaporator having a seawater inlet, a heating pipe, a steam outlet, a brine outlet, and a wastewater inlet; the seawater inlet is connected to a water inlet pipe, and a water pump is installed on the water inlet pipe; A wave energy conversion device, which can drive the water pump to pump seawater into the evaporator; A solar collector, which is connected to the heating pipe and continuously supplies hot water to the heating pipe; The shrimp heating device has a shrimp inlet, a clean water inlet, a cooked shrimp outlet, a steam pipe, and a wastewater outlet; the inlet of the steam pipe is connected to the steam outlet. The wastewater outlet is connected to the wastewater inlet; A mixer having a stirring paddle, a cooked shrimp inlet, a salt inlet, and a pickled shrimp outlet; the stirring paddle is driven by the wave energy conversion device; the salt inlet is connected to the salt outlet. A refrigerant circulation system, comprising a primary evaporation section, a primary condensation section, a secondary evaporation section, and a secondary condensation section arranged sequentially; the pipeline between the wastewater outlet and the wastewater inlet passes through the primary evaporation section; the secondary condensation section is connected to the primary evaporation section; The cold storage is located adjacent to the secondary evaporation section; A freshwater tank, which is connected to the outlet of the steam pipeline.

2. The marine resource comprehensive utilization system according to claim 1, characterized in that: The wave energy conversion device includes a buoy, an air piston, an air duct, a one-way valve, an impeller, and a gear. The buoy is used to float up and down with the sea surface. The air piston is connected to the buoy and is used to float with the buoy. The air duct is slidably engaged with the air piston. The impeller is rotatably installed inside the air duct and is used to be driven to rotate by the airflow when the air piston rises. The one-way valve is installed on the air duct and is used to open when the air piston falls. The gear is driven by the impeller and is used to drive the water pump and the agitator.

3. The marine resource comprehensive utilization system according to claim 1, characterized in that: The shrimp heating device has multiple heating layers; The steam pipeline includes an inner pipeline located within each heating layer and an outer pipeline located outside the heating layer; the outer pipeline includes a main pipeline, an inlet branch pipeline, and an outlet branch pipeline; the two ends of the inlet branch pipeline connect the outlet of the inner pipeline and the main pipeline, and the two ends of the outlet branch pipeline connect the inlet of the inner pipeline and the main pipeline; steam valves are installed on the main pipeline between the outlet branch pipeline and the inlet branch pipeline, as well as on the inlet branch pipeline corresponding to the heating layer that is not the top layer. The inlet of the inner pipe corresponding to the heating layer at the top is the inlet of the steam pipe; the end of the main pipe located downstream of the inner pipe at the bottom is the outlet of the steam pipe.

4. The marine resource comprehensive utilization system according to claim 3, characterized in that: The shrimp inlet and the clean water inlet are located at the top of the heating layer, while the cooked shrimp outlet and the wastewater outlet are located at the bottom of the heating layer.

5. The marine resource comprehensive utilization system according to claim 4, characterized in that: The heating layer is rectangular in shape, the shrimp inlet and the cooked shrimp outlet are diagonally opposite each other, and the clean water inlet and the wastewater outlet are diagonally opposite each other.

6. The marine resource comprehensive utilization system according to claim 3, characterized in that: The internal piping within the heating layer is serpentine.

7. The marine resource comprehensive utilization system according to claim 3, characterized in that: A bottomless drawer is slidably installed on the bottom inner side of the heating layer; after the cooked shrimp outlet is opened, the bottomless drawer can be pulled out from the cooked shrimp outlet.

8. The marine resource comprehensive utilization system according to claim 1, characterized in that: A high-temperature wastewater collection tank is installed on the pipeline between the wastewater outlet and the wastewater inlet. The high-temperature wastewater collection tank is located upstream of the primary evaporation section, and a filtration device is installed inside the high-temperature wastewater collection tank.

9. The marine resource comprehensive utilization system according to claim 1, characterized in that: The primary evaporation section is a generator for containing the refrigerant solution; the primary condensation section is a condenser; the secondary evaporation section is a refrigerant evaporator; and the secondary condensation section is a refrigerant absorber for containing the refrigerant solution. A pressure reducing valve is installed between the condenser and the refrigerant evaporator. The refrigerant absorber and the generator are connected by two pipelines, one of which is equipped with a solution pump.

10. The marine resource comprehensive utilization system according to claim 1, characterized in that: A seawater control valve is installed at the seawater inlet; a salt discharge control valve is installed at the salt discharge outlet; a steam control main valve is installed at the steam outlet; and a wastewater control valve is installed at the wastewater outlet.

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