CN211004652U - Double-micro seawater desalination device - Google Patents

Abstract

The utility model provides a double-micro seawater desalination device, which comprises a shell body, an evaporation vessel, a conduit and a carbon block, wherein the evaporation vessel is arranged in the inner cavity of the shell body, the evaporation vessel is fixed on the shell body through the conduit, and the free end of the conduit passes through the shell body to communicate the evaporation vessel with seawater; the carbon-based block is placed in the inner cavity of the evaporation vessel and floats on the surface of seawater in the inner cavity of the evaporation vessel; the double-microstructure formed by the device utilizes the latest solar-driven steam interface conversion technology, forms a local hot area by selecting a porous carbon material to float on the water surface, greatly reduces heat loss, and efficiently utilizes solar energy to desalt seawater.

Description

A double miniature seawater desalination device

technical field

The utility model relates to the field of interface type solar seawater desalination, in particular to a double miniature seawater desalination device.

Background technique

Solar energy is a typical clean and environmentally friendly energy, which can be used as an alternative energy to solve environmental pollution and energy crisis. Therefore, it has attracted great attention from relevant scientific and social groups from all over the world. Moreover, it has been widely used in many fields, such as hydrogen production, solar thermal power generation, photovoltaic cells, photocatalysis, water purification, etc.

Seawater desalination refers to the process of separating the dissolved mineral salts, organic matter, bacteria and viruses and solids in seawater to obtain fresh water that people can drink and use. From the perspective of energy conversion, it is the process of converting other energy into brine separation energy. As far as the development of seawater desalination technology is concerned, it can be divided into two categories: physical methods and chemical methods. The distillation method in the physical method is the most simple and common: the method of boiling and vaporizing the seawater by heating it, and then condensing the water vapor into fresh water, has low requirements for water quality, and the use of solar distillation is an environmentally friendly, energy-saving and efficient method.

Current technologies for producing steam using solar energy rely on the surface of the material to absorb solar radiation and transfer the accumulated heat to bulk water directly or indirectly through an intermediate heat transfer fluid due to high light losses, large surface heat losses, or the need for a vacuum to reduce convection heat loss, which increases the cost and complexity of the CSP system. Therefore, there is a great need to develop cost-effective and efficient solar energy collection systems. Low-cost micro/nanostructured photothermal systems have recently emerged as a promising approach. Fluids seeded with nanoparticles (NPs) minimize surface energy loss and increase thermal conductivity due to fluid temperature uniformity through the volumetric absorber. Nonetheless, the intriguing and important issue is that the nanoparticles in this case are wasted due to absorption and scattering of incident light. To overcome this problem, many methods have emerged. Air-water interfaces on materials such as carbon-based foams, porous anodized aluminum and cellulose membranes allow for more efficient and cost-effective steam generation. In these platforms, steam generated by thermal localization is achieved through the cooperation of light absorption, adiabatic adiabatic and capillary action. Absorbers of various black materials such as porous carbon materials, metal plasmonic structures and semiconductor nanoparticles have been shown to efficiently absorb solar energy. The substrate used for thermal positioning acts as a thermal insulator, reducing heat transfer between the vaporization area and the bulk liquid. Due to the channel capillary effect, supported by water transport under negative pressure and steam escape, the local evaporation efficiency is increased by about 64%. In addition, the use of solar collectors further increases the thermal efficiency by 85-90%.

SUMMARY OF THE INVENTION

The purpose of the present utility model is to provide a double miniature seawater desalination device, which solves the problem that the current technology of using solar energy to produce steam relies on the surface of the material to absorb solar radiation, and transfers the accumulated heat to bulk water directly or indirectly through the intermediate heat transfer fluid, Because of high light loss, large surface heat loss, or the need for vacuum to reduce convective heat loss, the cost and complexity of the photothermal system are increased and are not conducive to large-scale industrial production.

In order to achieve the above-mentioned purpose, the technical scheme that the utility model adopts is:

The utility model provides a double miniature seawater desalination device, which comprises a shell body, an evaporating vessel, a conduit and a carbon base block. The ends pass through the shell body to communicate the evaporating vessel with the seawater; the carbon base block is placed in the inner cavity of the evaporating vessel and floats on the upper surface of the seawater in the inner cavity of the evaporating vessel.

Preferably, three connecting pieces are evenly distributed on the outer side of the housing body along its circumferential direction, and each connecting piece is provided with a floating ball.

Preferably, the floating balls are high-density metal balls whose outer surfaces are coated with acid-resistant cement paint.

Preferably, the upper end of the housing body is provided with a cover body, and a separate structure is provided between the cover body and the housing body.

Preferably, the cover is laid with a hydrophobic membrane.

Preferably, the casing body and the cover are closed and connected by a butyl waterproof tape.

Preferably, both the housing body and the cover are made of thermally conductive material.

Preferably, the connection between the conduit and the housing body is closed by butyl waterproof tape.

Preferably, both the evaporating vessel and the conduit are made of thermally insulating material.

Compared with the prior art, the beneficial effects of the present utility model are:

The utility model provides a double miniature seawater desalination device, which is formed by a shell body and an evaporating vessel to form a micro-water layer, which is realized by the principle of a communicating device. The internal and external structures of the device are selected from materials with completely opposite thermal conductivity, which can ensure the efficient collection of solar energy to the greatest extent. Efficient recovery of utilization and condensed water; a micro-water film structure is formed by carbon base blocks and evaporating vessels, using the latest solar-driven steam interfacial conversion technology, by selecting a porous carbon material to float on the water surface, forming a localized Thermal zone, greatly reducing heat loss, efficient use of solar energy for seawater desalination.

Further, the set floating ball is of great significance to the realization of the counterweight and stability of the device.

Description of drawings

Fig. 1 is the double miniature desalination seawater equipment desalination seawater structure schematic diagram that the utility model relates to;

Among them, 1. the shell body 2, the evaporating vessel 3, the conduit 4, the floating ball 5, the connecting piece.

Detailed ways

The present utility model will be further described in detail below in conjunction with the accompanying drawings.

As shown in FIG. 1 , a dual miniature seawater desalination device provided by the present invention includes a shell body 1 and an evaporating vessel 2, wherein the body 1 is a cavity structure, and the evaporating vessel 2 is placed in the cavity of the shell body 1, The bottom of the evaporation vessel 2 is connected with a conduit 3, and the inner cavity of the evaporation vessel 2 communicates with the conduit 3; the free end of the conduit 3 passes through the bottom of the shell body 1 and communicates with seawater.

The communication between the evaporating vessel 2 and the seawater is achieved through the conduit 3 .

Carbon-based blocks float on the upper surface of the seawater in the inner cavity of the evaporation vessel 2 .

The outer side of the housing body 1 is evenly distributed with three connecting pieces 5 along its circumferential direction, and each connecting piece 5 is provided with a floating ball 4.

The thickness of the evaporation vessel 2 is 30 mm.

The upper end of the housing body 1 is provided with a cover body, and a separate structure is arranged between the cover body and the body 1; this structure is convenient for collection and utilization of desalinated seawater in use.

The shell body 1 and the cover are made of thermally conductive material PPA matrix white series thermally conductive plastics.

The evaporating vessel 2 and the conduit 3 are made of polyurethane rigid foam insulation material.

The housing body 1 and the cover are closed and connected by butyl waterproof tape.

The conduit 3 and the housing body 1 are sealed and connected by butyl waterproof tape.

The floating ball 4 is a high-density metal ball whose outer surface is coated with KY2 acid-resistant cement paint.

A hydrophobic membrane is laid on the cover.

The carbon-based block can better cover the water surface in the evaporating dish, avoiding the influence of the inter-sphere space formed by the inability of the spheres to be densely arranged on the desalination efficiency.

The working principle of the utility model is:

The evaporating vessel 2 is communicated with the seawater through the conduit 3, the seawater enters the inner cavity of the evaporating vessel 2 under the action of pressure, and the carbon base block is placed in the inner cavity of the evaporating vessel 2, and floats in the inner cavity of the evaporating vessel 2 It is used to absorb solar light on the seawater in the evaporating vessel 2 by using solar energy to evaporate the seawater in the evaporating vessel 2. The evaporated water vapor flows back into the inner cavity of the shell body 1. After the fresh water in the shell body 1 is collected to a certain extent, Open the cover and pour out the desalination from the shell body 1, at this time, the desalination process of seawater is completed.

The utility model has positive effects:

Based on its characteristic "double micro", the dual micro desalination device constructs a dual-scale high-efficiency design of "micro water layer" and "micro water membrane" from the perspective of mechanical and material, which constitutes a good desalination capacity for salt water.

Technical key: The formation of "micro-water layer" is realized by the principle of communicating device, which is of great significance to the realization of the counterweight and stability of the device. The internal and external structures of the device select materials with completely opposite thermal conductivity, which can maximize the efficient utilization of collected solar energy (reduce heat conduction and loss) and the efficient recovery of condensed water (reduce secondary volatilization of condensed water). The formation of "micro-water film" utilizes the latest solar-driven steam interfacial conversion technology. By selecting a porous carbon material to float on the water surface, a local hot zone is formed, which greatly reduces heat loss and efficiently. Use solar energy. The choice of cheap and efficient biomass-based carbon materials for micro-water membrane design materials is more conducive to reducing the preparation cost.

Claims (9)

1. A double miniature seawater desalination device is characterized in that, comprising shell body (1), evaporating vessel (2), conduit (3) and carbon base block, and evaporating vessel (2) is placed inside the shell body (1) In the cavity, the evaporating vessel (2) is fixed on the shell body (1) through a conduit (3), and the free end of the conduit (3) passes through the shell body (1) to communicate the evaporating vessel (2) with seawater; carbon-based The block is placed in the inner cavity of the evaporating vessel (2) and floats on the upper surface of the sea water in the inner cavity of the evaporating vessel (2). 2. A dual miniature seawater desalination device according to claim 1, characterized in that, the outer side of the shell body (1) is uniformly distributed with three connecting pieces (5) along its circumferential direction, and each connecting piece (5) is on the A floating ball (4) is provided. 3 . A dual miniature seawater desalination device according to claim 2 , wherein the floating ball ( 4 ) is a high-density metal ball whose outer surface is coated with acid-resistant cement paint. 4 . 4. A dual miniature seawater desalination device according to claim 1, characterized in that a cover body is provided on the upper end of the shell body (1), and a separate structure is arranged between the cover body and the shell body (1). . 5 . A dual-miniature seawater desalination device according to claim 4 , wherein the cover is laid with a hydrophobic membrane. 6 . 6 . The double miniature seawater desalination device according to claim 4 , wherein the housing body ( 1 ) and the cover body ( 6 ) are closed and connected by a butyl waterproof tape. 7 . 7 . The double miniature seawater desalination device according to claim 4 , wherein the shell body ( 1 ) and the cover body ( 6 ) are both made of thermally conductive materials. 8 . 8 . A dual miniature seawater desalination device according to claim 1 , wherein the conduit ( 3 ) and the shell body ( 1 ) are closed and connected by a butyl waterproof tape. 9 . 9 . The double miniature seawater desalination device according to claim 1 , wherein the evaporation vessel ( 2 ) and the conduit ( 3 ) are made of heat insulating materials. 10 .

Images