Water lens heater for warming and maintaining the temperature of a mariculture pond and method of use

Abstract

The application provides a water lens heater for warming and heat preservation of a mariculture pond and a use method, and relates to the technical field of seawater heating. The heater comprises a water lens unit and at least one heat preservation unit, the water lens unit and the heat preservation unit form a stacked structure distributed in an up-down mode, the water lens unit is located below the heater, and the heat preservation unit is stacked above the water lens unit; a water injection cavity for water injection is formed in the water lens unit, and an air cavity for air injection is formed in the heat preservation unit; the water lens unit and the heat preservation unit are both made of a light-transmitting film. The heater can effectively shorten the warming period of the mariculture pond through the synergistic effect of the three mechanisms of heat locking through the greenhouse effect, light concentration and efficiency increase through the lens, and multi-layer air heat insulation, can raise low-temperature seawater to a suitable temperature for breeding in several hours or 1-2 days, and greatly improves fattening efficiency and production rhythm.

Description

Technical Field

[0001] This invention relates to the field of seawater heating technology, and in particular to a water lens heater for heating and maintaining the temperature of seawater aquaculture ponds, and its method of use. Background Technology

[0002] In marine aquaculture (such as shrimp, shellfish, and sea cucumber), water temperature is a key environmental factor affecting the metabolism, feeding, growth, and disease resistance of organisms. For example, in the oyster fattening stage, the optimal fattening time for Rushan oysters is from November to April of the following year. During this period, the ambient seawater temperature is low, and the temperature of the seawater newly added to the culture ponds is often below 5°C, far from the suitable temperature required for efficient oyster fattening. If fattening is carried out directly in low-temperature seawater, it will not only inhibit the oysters' feeding and metabolic activities but may also reduce their survival rate and fattening efficiency.

[0003] Currently, the industry mainly relies on natural heating, which involves the slow warming of pond water through the natural exchange of sunlight and geothermal energy. However, the natural warming cycle of seawater in aquaculture ponds is too long, lasting from several days to more than a week, which severely slows down the fattening process and affects the aquaculture cycle and economic benefits. Summary of the Invention

[0004] This invention addresses the technical problem of excessively long natural heating cycles in marine aquaculture ponds by providing a water lens heater and its application method for heating and maintaining the temperature of marine aquaculture ponds. The lens heater includes a water lens unit and at least one insulation unit. Through the synergistic effect of greenhouse effect heat retention, lens light focusing enhancement, and multi-layer air insulation, it can effectively shorten the heating cycle of marine aquaculture ponds, raising the low-temperature seawater to a suitable aquaculture temperature within a few hours or 1-2 days, significantly improving fattening efficiency and production pace. It is also suitable for heating and maintaining the temperature of various marine aquaculture ponds, such as those for shrimp, shellfish, and sea cucumber.

[0005] Therefore, the technical solution of the present invention is a water lens heater for heating and heat preservation of seawater aquaculture ponds, comprising a water lens unit and at least one heat preservation unit. The water lens unit and the heat preservation unit form a stacked structure distributed vertically, with the water lens unit located below the heater and the heat preservation unit stacked above the water lens unit. A water injection cavity for injecting water is formed inside the water lens unit, and an air cavity for injecting air is formed inside the heat preservation unit. Both the water lens unit and the heat preservation unit are made of a light-transmitting film.

[0006] Furthermore, the water lens unit includes an upper lens film, a side lens film, and a lower lens film, which are sealed together by welding.

[0007] Furthermore, the thickness of the upper film of the lens is less than the thickness of the side film and the lower film of the lens. After water is injected, the upper film of the lens bulges upward to form a convex lens structure.

[0008] Furthermore, the insulation unit includes an upper insulation film and an inner insulation film, which are sealed together by welding. The lower end of the inner insulation film is sealed to the water lens unit.

[0009] Furthermore, the water lens unit is equipped with a water injection valve for injecting or discharging fresh water; the insulation unit is equipped with an air inflation valve for injecting or discharging air.

[0010] Furthermore, the bottom surface of the heater has a modular geometric shape, including squares, rectangles, triangles, or regular polygons.

[0011] Furthermore, the water lens heater also includes a fence frame fitted outside the water lens unit. The fence frame has a light-transmitting and hollow structure, which is used to maintain the shape of the water lens unit and facilitate splicing and installation.

[0012] Furthermore, the water lens heater also includes an inflatable float located below the water lens unit. The inflatable float is surrounded by a light-transmitting film and has an inflatable chamber inside.

[0013] A method for using a water lens heater for heating and heat preservation in a seawater aquaculture pond, comprising the following steps: laying the heater on the water surface of the aquaculture pond; injecting water into the water lens unit to form a water lens structure; inflating the heat preservation unit to form an air insulation layer; using multiple heaters spliced ​​together to cover the water surface, achieving seawater heating through sunlight irradiation and achieving seawater heat preservation through the air insulation layer.

[0014] Furthermore, after the water lens heater is used, the fresh water in the water lens unit and the air in the insulation unit are discharged through the valve for storage and reuse.

[0015] The beneficial effects of this invention are as follows: the water lens heater, through the synergistic effect of greenhouse effect heat retention, lens light-concentrating enhancement, and multi-layer air insulation, exhibits significant economic benefits in the field of marine aquaculture. It can effectively shorten the heating cycle of marine aquaculture ponds, raising the low-temperature seawater to a suitable aquaculture temperature within a few hours or 1-2 days, greatly improving fattening efficiency and production pace; it has high heating efficiency, good heat preservation performance, and uses sunlight, making it energy-saving and environmentally friendly; the structure uses a light-transmitting film supplemented with fresh water and air as working media, making it simple, reliable, low-cost, and easy to maintain; the modular and splicable design adapts to aquaculture ponds of different sizes and shapes, allowing for flexible installation and convenient covering; the valve facilitates the injection and discharge of media, and the whole unit is foldable for easy storage and transportation, supporting reusability and reducing long-term operating costs; this device is suitable for heating and heat preservation in various marine aquaculture ponds such as shrimp, shellfish, and sea cucumber, and has outstanding practical value and promotion prospects, especially in low-temperature seasons or high-latitude regions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the heater of the present invention;

[0017] Figure 2 yes Figure 1 The main view;

[0018] Figure 3 yes Figure 1 A sectional view;

[0019] Figure 4 This is a schematic diagram of the water lens unit;

[0020] Figure 5 This is a schematic diagram of the insulation unit.

[0021] Figure 6 This is a schematic diagram of the water lens unit using a welding process;

[0022] Figure 7 This is a structural diagram of the fence frame;

[0023] Figure 8 A schematic diagram of the heater in another embodiment;

[0024] Figure 9 yes Figure 8 A sectional view.

[0025] Explanation of symbols in the diagram:

[0026] 1. Water lens unit; 11. Upper lens film; 12. Side lens film; 13. Lower lens film; 101. Water injection chamber; 102. Water injection valve; 2. Insulation unit; 21. Upper insulation film; 22. Side insulation film; 201. Air chamber; 202. Inflation valve; 3. Fence frame; 301. Valve through hole; 4. Inflatable float. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1-7 As shown, the present invention provides a water lens heater for heating and heat preservation in seawater aquaculture ponds. The heater includes a water lens unit 1 and a heat preservation unit 2, which form a stacked structure distributed vertically. The number of heat preservation units 2 is at least one. The water lens unit 1 is located below the heater, and one or more heat preservation units 2 are stacked sequentially on top of the water lens unit 1.

[0029] Both the water lens unit 1 and the heat preservation unit 2 are surrounded by a light-transmitting film. The interior of the water lens unit 1 is surrounded by a light-transmitting film to form a water injection cavity 101. A water injection valve 102 is provided on one side of the water injection cavity 101. Fresh water can be injected into the water injection cavity 101 through the water injection valve 102, and fresh water in the water injection cavity 101 can also be extracted through the water injection valve 102 for easy storage.

[0030] The interior of the heat preservation unit 2 is surrounded by a light-transmitting film to form an air cavity 201. An air inflation valve 202 is provided on one side of the air cavity 201. Air can be injected into the air cavity 201 through the air inflation valve 202, and air can also be extracted from the air cavity 201 through the air inflation valve 202 for easy storage.

[0031] Because the water lens unit 1 and the heat preservation unit 2 of the heater form a stacked structure with the water lens unit 1 filled with fresh water and the heat preservation unit 2 filled with air, when the heater is placed on the seawater surface of the aquaculture pond, the water lens unit 1 will float on the water surface, and sunlight will pass through the transparent heat preservation unit 2 and the water lens unit 1 in turn to irradiate the seawater in the aquaculture pond.

[0032] The heater can be used to heat and keep the seawater in the aquaculture pond by covering the water surface. In order to make it easy to cover the aquaculture pond, the heater is designed to be modular, such as square, rectangle, triangle, regular polygon, etc. on its bottom surface.

[0033] Specifically, the water lens unit 1 includes an upper lens film 11, a side lens film 12, and a lower lens film 13. If the bottom surface of the water lens unit 1 is designed as a square, then the upper lens film 11 and the lower lens film 13 are square. The side lens film 12 is connected to the upper lens film 11 and the lower lens film 13 by a welding sealing process.

[0034] like Figure 6 As shown, the four sides of the upper lens film 11 are welded to the upper end of the lens side film 12, and the hot-pressed connection is located on the outside of the water injection cavity 101. Similarly, the four sides of the lower lens film 13 are welded to the lower end of the lens side film 12, and the hot-pressed connection is located on the outside of the water injection cavity 101.

[0035] To achieve better heat absorption, the present invention expands the upper lens film 11 upward to form a stable convex lens structure, thereby achieving a light-focusing effect. The method of achieving this is to use a thinner light-transmitting film for the upper lens film 11, and a thicker light-transmitting film for the lens side film 12 and the lower lens film 13. For example, the thickness of the upper lens film 11 is 0.08-0.15mm, and the thickness of the lens side film 12 and the lower lens film 13 is 0.20-0.30mm.

[0036] After the water lens unit 1 is filled with fresh water, the extra fresh water will cause the water lens unit 1 to deform elastically. Since the thickness of the light-transmitting film selected for the lens side film 12 and the lens lower film 13 is greater than the thickness of the light-transmitting film selected for the lens upper film 11, the deformation of the water lens unit 1 will preferentially form on the lens upper film 11, causing the lens upper film 11 to bulge upward to form a stable convex lens structure.

[0037] The heat insulation unit 2 includes an upper heat insulation film 21 and a side heat insulation film 22. When only one heat insulation unit 2 is superimposed on the water lens unit 1, the four sides of the upper heat insulation film 21 are welded to the upper end of the side heat insulation film 22, and the lower end of the side heat insulation film 22 is welded to the lens side film 12 or the lower lens film 13 of the water lens unit 1. At this time, the space enclosed by the upper heat insulation film 21, the side heat insulation film 22 and the lower lens film 13 is the air cavity 201.

[0038] When multiple insulation units 2 are stacked on top of water lens unit 1, the multiple insulation units 2 are stacked on top of water lens unit 1 in sequence, and the insulation side film 22 of the previous insulation unit 2 is connected to the insulation top film 21 or insulation side film 22 of the next insulation unit 2 by welding.

[0039] like Figure 7 As shown, in one specific embodiment, in order to better maintain the shape of the water lens unit 1 and facilitate the spreading of several heaters across the seawater surface of the aquaculture pond, a fence frame 3 is fitted around the outside of the water lens unit 1. The fence frame 3 is provided with a valve through hole 301. The fence frame 3 is made of light-transmitting plastic and has a hollow structure. The water lens unit 1 is placed in the fence frame 3. The fence frame 3 is used to limit the shape of the water lens unit 1, prevent it from deforming, and prevent its deformation from affecting the formation of the convex lens structure of the lens film 11 or affecting the splicing of the heaters.

[0040] like Figures 8-9 As shown, in one specific embodiment, an inflatable float 4 is provided below the water lens unit 1. The inflatable float 4 is distributed along the four sides of the lower end face of the water lens unit 1. The inflatable float 4 is surrounded by a light-transmitting film and has an inflatable chamber inside. An inflatable valve is provided on one side of the inflatable chamber to facilitate the inflation and deflation of the inflatable float 4. The inflatable float 4 is used to increase the height of the water lens unit 1 above the water surface. The greater the curvature of the lens film 11 of the water lens unit 1, the greater the height of the water lens unit 1 above the water surface, and the stronger the heat absorption effect.

[0041] The principle behind the water lens heater of this invention for heating and maintaining seawater temperature is as follows:

[0042] 1. Greenhouse Effect Principle: The heater as a whole adopts a high light transmittance transparent film material, whose optical characteristics are the same as those of greenhouse film: it has high transmittance (>85%) for solar short-wave radiation (visible light and near infrared), allowing sunlight to efficiently penetrate the layers of the transparent film of the heater to the seawater; at the same time, it has low transmittance (high reflection / absorption characteristics) for the long-wave infrared radiation (thermal radiation) emitted by the seawater and the freshwater in the water lens unit 1 after being heated, effectively blocking the heat from being lost to the atmosphere in the form of radiation, forming a closed "artificial greenhouse effect", which significantly suppresses the loss of radiative heat, so as to achieve the effect of warming the seawater.

[0043] 2. Light-Concentrating Enhancement Principle: After the water lens unit is filled with fresh water, because the thickness of the upper film of the lens is smaller than that of the side and lower films, the upper film expands upward after water is added, forming a stable convex lens structure. This convex lens structure has a light-concentrating effect, significantly increasing the light energy density received by seawater per unit area. For example, in the morning or evening, when sunlight shines obliquely onto the upper film of the lens, the light-concentrating effect of its convex lens structure allows more light to enter the water lens unit.

[0044] 3. Multi-layer thermal insulation principle: The still air cavity filled within the insulation unit forms a low thermal conductivity insulation layer (air thermal conductivity is approximately 0.026 W / m·K), significantly reducing heat loss to the environment through convection and conduction. The stacking of multiple insulation units creates a gradient thermal insulation barrier, further extending the insulation duration.

[0045] In practical applications, sunlight first passes through the air insulation layer of the insulation unit, and then is focused by the convex lens of the water lens unit to irradiate the seawater surface with higher energy density, achieving rapid warming through the greenhouse effect; at the same time, the insulation unit forms a gradient insulation barrier to inhibit the outward loss of heat, so as to achieve rapid warming and long-term insulation of the seawater.

[0046] Practical verification has shown that the water lens heater of this invention can keep the water surface from freezing when the outside temperature is -10 degrees Celsius. If the water depth is one meter in underground or enclosed ponds, it can maintain the bottom temperature above 6 degrees Celsius, ensuring the temperature required for normal feeding of marine organisms such as sea cucumbers and oysters.

[0047] This invention provides a method for using a water lens heater for heating and maintaining the temperature of a seawater aquaculture pond, comprising the following:

[0048] Place the heater: Lay the unfilled and uninflated heater flat on the surface of the aquaculture pond.

[0049] Water injection into the water lens unit: Fresh water is injected into the water injection chamber through the water injection valve on the water lens unit until the upper membrane bulges and forms a stable convex lens-shaped structure.

[0050] Inflation of the insulation unit: Air is injected into the air cavity through the inflation valve on the insulation unit to fill it and inflate it appropriately.

[0051] Heater installation: Lay out multiple heaters in sequence until the entire surface of the aquaculture pond or the target heating area is covered.

[0052] Routine maintenance: Monitor water temperature and heater integrity daily, and add or adjust water and gas volume through valves when necessary.

[0053] Heater storage: After use, drain the water and gas through the valve, fold and store for easy storage and reuse.

[0054] The water lens heater of this invention exhibits significant economic benefits in the field of marine aquaculture through the synergistic effect of greenhouse effect heat retention, lens light-concentrating enhancement, and multi-layer air insulation. It can effectively shorten the heating cycle of marine aquaculture ponds, raising the low temperature seawater to a suitable aquaculture temperature within a few hours or 1-2 days, greatly improving fattening efficiency and production pace. It has high heating efficiency, good heat preservation performance, and uses sunlight, making it energy-saving and environmentally friendly. The structure uses a light-transmitting film supplemented with fresh water and air as working media, which is simple, reliable, low in manufacturing cost, and easy to maintain. The modular and splicable design can adapt to aquaculture ponds of different sizes and shapes, allowing for flexible installation and convenient covering. Valves facilitate the injection and discharge of media, and the whole unit can be folded for easy storage and transportation, supporting reusability and reducing long-term operating costs. This device is suitable for heating and heat preservation in various marine aquaculture ponds such as shrimp, shellfish, and sea cucumber, and has outstanding practical value and promotion prospects, especially in low-temperature seasons or high-latitude regions.

[0055] However, the above description is merely a specific embodiment of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A water lens heater for heating and maintaining the temperature of seawater aquaculture ponds, characterized in that, The device includes a water lens unit and at least one heat preservation unit. The water lens unit and the heat preservation unit form a stacked structure with the water lens unit located below the heater and the heat preservation unit stacked above the water lens unit. The water lens unit has a water injection cavity for injecting water, and the heat preservation unit has an air cavity for injecting air. Both the water lens unit and the heat preservation unit are made of a light-transmitting film. The water lens unit includes an upper lens film, a side lens film, and a lower lens film. The thickness of the upper lens film is less than the thickness of the side lens film and the lower lens film. After water is injected, the upper lens film expands upward to form a convex lens structure.

2. The water lens heater according to claim 1, characterized in that, The upper lens film, the side lens film, and the lower lens film are sealed together by welding.

3. The water lens heater according to claim 1, characterized in that, The insulation unit includes an upper insulation film and an inner insulation film. The upper insulation film and the inner insulation film are sealed together by welding. The lower end of the inner insulation film is sealed to the water lens unit.

4. The water lens heater according to claim 1, characterized in that, The water lens unit is equipped with a water injection valve for injecting or discharging fresh water; the heat preservation unit is equipped with an air inflation valve for injecting or discharging air.

5. The water lens heater according to claim 1, characterized in that, The bottom surface of the heater has a modular geometric shape, including square, rectangle, triangle or regular polygon.

6. The water lens heater according to claim 1, characterized in that, The water lens heater also includes a fence frame fitted outside the water lens unit. The fence frame is a light-transmitting and hollow structure used to maintain the shape of the water lens unit and facilitate splicing and installation.

7. The water lens heater according to claim 1, characterized in that, The water lens heater also includes an inflatable float located below the water lens unit. The inflatable float is surrounded by a light-transmitting film and has an inflatable chamber inside.

8. A method for using a water lens heater for heating and maintaining the temperature of a seawater aquaculture pond, characterized in that... The water lens heater as described in any one of claims 1 to 7 includes the following steps: laying the heater on the surface of the aquaculture pond; injecting water into the water lens unit to form a water lens structure; inflating the heat preservation unit to form an air insulation layer; using multiple heaters spliced ​​together to cover the water surface, achieving seawater temperature rise through sunlight irradiation, and achieving seawater heat preservation through the air insulation layer.

9. The method according to claim 8, characterized in that, After the water lens heater is used, the fresh water in the water lens unit and the air in the heat preservation unit are discharged through the valve so that they can be stored and reused.

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