CN113401965A

CN113401965A - Flip formula solar energy sea water desalination device

Info

Publication number: CN113401965A
Application number: CN202110669786.6A
Authority: CN
Inventors: 孔令斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2021-09-17

Abstract

The invention provides a flip type solar seawater desalination device which is formed by connecting 2 condensers into a 1 body. The condenser top surface is a sloped surface and the condenser has 1 high side surface and 1 low side surface. The light and heat plate covers the top surface of the condenser. The intersection line of the high side surface and the light and heat plate forms the central line of the rotating shaft. The rotating shaft screw is connected with the condenser and the light and heat plate at the central line of the rotating shaft. The light and heat plate can be turned upwards. The photothermal plate comprises a photothermal layer, a heat transfer layer, a water absorption layer and a frame from top to bottom. The water absorbing layer extends to the bottom of the condenser through the high side surface. The water absorbing layer is pressed and stuck on the high side surface by the heat insulation plates between the high side surfaces of the 2 condensers to form a seawater ascending channel. The inclined water absorption layer of the photothermal plate is a concentrated seawater descending channel. The condenser communicating pipe is communicated with 2 condensers. The flip type solar seawater desalination device is placed on a shoal or floats on the water surface, and the seawater ascending concentrated seawater descending circulation and the seawater desalination are completed under the action of sunlight. The light and heat plate is turned upwards to take out fresh water from the condenser.

Description

Flip formula solar energy sea water desalination device

Technical Field

The invention relates to a seawater desalination device, in particular to a flip type solar seawater desalination device.

Background

Throughout the development process of the passive solar seawater desalination technology, the disc type solar seawater desalination technology is a whole-process starting point, the solar interface evaporation technology is a current research hotspot, and the solar evaporation technology with the overhead heating surface is a whole-process end point. The overhead heating surface solar evaporation technology is characterized in that a heating surface, an evaporation surface and a condensation surface are sequentially arranged from top to bottom. The overhead heating surface solar evaporation technology is still in the initial stage of development, and the technology is not mature. The Chinese invention patent 2020109186213 and the Chinese invention patent 2021100455488 are specific schemes of overhead heating surface solar evaporation technology. The two technical schemes have the two problems of insufficient recycling of condensation heat and inconvenient operation and use. One is that both of them are that water-absorbing material hugs closely 4 sides of condenser and constitutes the ascending passageway of sea water, do not have the descending passageway of concentrated seawater, and concentrated seawater is detained in the light and heat board, influences the ascending heat transfer of sea water, leads to the condensation heat recycle insufficient. The other is that the Chinese patent invention 2020109186213 needs to inject seawater into the seawater evaporation tank and discharge concentrated seawater out of the seawater evaporation tank, and the Chinese patent invention 2021100455488 needs to add a water pump and a water pipeline and consumes power. Both are inconvenient to operate and use. Because of these two problems, the range of applications for overhead heating surface solar evaporation technology is limited. In islands without electric power and remote rural areas, a solar seawater desalination device which floats on the water surface or is arranged on a shoal, consumes no electric power and is convenient for taking out fresh water is needed. Obviously, none of the 2 solutions described above meets this requirement. To remove fresh water from the condenser, the simplest way is to remove the photothermal plates covering the top of the condenser. The operation process of taking fresh water requires that: firstly, the light and hot plate is easily moved away when fresh water is taken; and secondly, quickly covering the upper hot plate after taking fresh water. The mechanism of turning the hotplate upwards can meet this requirement.

Disclosure of Invention

The invention aims to develop a solar seawater desalination device for directly taking fresh water out of a condenser by arranging a seawater ascending channel and a concentrated seawater descending channel for heat insulation and heat preservation and adopting the technical measure of rotating and upturning a photo-thermal plate.

In order to achieve the purpose, the scheme of the invention is as follows: the structure of the condenser comprises a condenser, a light and heat plate, a square sealing ring, a heat insulation plate, a connecting bolt, a rotating shaft screw and a condenser communicating pipe. The method is characterized in that: the top surface of the condenser is an inclined surface. The condenser has 1 pair of sides of unequal height. These 2 sides are referred to as the high side and the low side, respectively. The light and heat plate covers the top surface of the condenser. The intersection line of the high side surface and the light and heat plate forms a central line of a rotating shaft, and a rotating shaft screw is connected with the condenser and the light and heat plate on the central line of the rotating shaft. The light and heat plate can be turned upwards. The photothermal plate comprises a photothermal layer, a heat transfer layer, a water absorption layer and a frame from top to bottom. The water absorbing layer extends to the bottom of the condenser through the high side surface. The square sealing ring is fixed on the frame and seals a gap between the photo-thermal plate and the condenser. 2 condensers are connected into a 1 body by connecting bolts. The water absorbing layer is pressed and stuck on the high side surface by the heat insulation plates between the high side surfaces of the 2 condensers to form a seawater ascending channel. The inclined water absorption layer of the photothermal plate is a concentrated seawater descending channel. At the bottom of the 2 condensers, the condenser communicating pipes are communicated with the 2 condensers. Forming the flip-type solar seawater desalination device.

The photo-thermal plate comprises a light transmitting layer, a photo-thermal layer, a water absorbing layer and a frame from top to bottom. The transparent layer is made of transparent material such as glass, transparent plastic, etc. The photothermal layer is a black photothermal material. The water absorbing layer is made of cotton cloth or other water absorbing material.

The invention has the advantages that: firstly, a concentrated seawater descending channel is connected with a seawater ascending channel end to end, the concentrated seawater descending drives the seawater to ascend, the seawater ascending accelerates the descending of the concentrated seawater, the circulation of the seawater is accelerated, and the condensation heat recycled is increased while the crystallization of salt in a water absorption layer is eliminated; secondly, the high side surface of the condenser of the seawater ascending channel is heated, and the heat insulation plate prevents heat dissipation, so that the recycling amount of condensation heat can be increased; thirdly, the upper surface of the inclined photo-thermal plate is not easy to accumulate dust and is convenient to eliminate, and even the upper surface can be automatically cleaned in rain; fourthly, the photo-thermal plate is turned upwards, fresh water is directly taken from the condenser, and the use is convenient; fifthly, except solar energy, no other energy is consumed, the device is suitable for remote rural areas with water shortage, and drinking water can be prepared by placing the device in a paddy field; sixthly, the adopted raw materials are all common materials with lower price; and seventhly, the precision requirement of the manufacturing process is not high, and the rapid batch production is convenient.

Drawings

The invention will be further illustrated with reference to the following examples and drawings:

FIG. 1 is a block diagram of the present invention;

FIG. 2 is a view of the condenser structure of the present invention;

FIG. 3 is a block diagram of a light and heat plate of the present invention;

FIG. 4 is a view of the construction of the heat shield of the present invention;

in the figure, 1, a photo-thermal plate, 2, a condenser, 3, a condenser communicating pipe, 4, a thermal baffle, 5, a connecting bolt, 6, a rotating shaft screw, 7, a rotating shaft screw hole, 8, a communicating hole, 9, a connecting bolt hole, 10 and a rotating shaft hole.

Detailed Description

The embodiment is a solar seawater desalination device formed by connecting 2 stainless steel condensers with the bottom surfaces of 1 meter long, 0.5 meter wide and 0.2 meter high and 0.001 meter thick. The top surface of the condenser 2 is inclined at 3 degrees. The light and heat plate 1 covers the top surface of the condenser 2. The condenser 2 has connecting bolt holes 9 and rotating shaft screw holes 7 on both sides of its high side. The bottom of the high side of the condenser 2 is provided with a communicating hole 8. Fig. 2 depicts the positional relationship of the connecting bolt hole 9, the spindle screw hole 7 and the communicating hole 8. The connecting bolt 5 passes through the connecting bolt holes 9 of the two condensers and the heat insulation plate 4 to connect the two condensers 2 into a whole. The spindle screw 6 passes through the spindle screw hole 7 and the spindle hole 10 to connect the light and heat plate 1 and the condenser 2. The photothermal layer of the photothermal plate is black baking varnish. The photothermal plate heat transfer layer was a stainless steel plate 1.04 m long by 0.54 m wide by 0.0005 m thick. The water absorbing layer of the photothermal plate is cotton cloth with the length of 1.04 meters, the width of 0.74 meters and the thickness of 0.001 meter. The photothermal plate frame is a stainless steel frame with the length of 1.03 m and the width of 0.53 m. The 4 sides of the photo-thermal plate frame are all composed of two vertically connected stainless steel blocks with the width of 0.02 m and the thickness of 0.001 m. Part of the cotton cloth is adhered to the lower surface of the stainless steel plate. The stainless steel plate is fixed on the frame by screws or rivets. FIG. 3 is a schematic diagram of a light and heat plate 1 without cotton cloth. The square sealing ring is fixed on the frame. The other part of cotton cloth forms a seawater ascending channel between the high side surface of the condenser 2 and the heat insulation plate 4. The insulation board 4 is a polystyrene board with a length of 1.04 m, a width of 0.15 m and a height of 0.04 m. The plate surface is provided with 4 connecting bolt through holes. Fig. 4 is a view showing the structure of the heat insulating board 4. The condenser communicating tube 3 communicates the two condensers 2 through the communicating hole 8. Fig. 1 shows a flip-type solar seawater desalination device assembled by 2

condensers

2, 2 photo-thermal plates 1, 1 square sealing ring, 1

thermal insulation plate

4, 4 connecting

bolts

5, 4 rotating shaft screws 6 and 1 condenser communicating pipe 3. And a secondary lock catch 1 is arranged between the lower side surface of the condenser 2 and the photo-thermal plate 1.

The working process of the embodiment is as follows: the flip type solar seawater desalination device is placed on a shoal or floats on the water surface. The solar radiation is converted into heat on the upper surface of the photothermal plate 1. The heat heats the seawater in the cotton cloth of the water absorption layer through the heat transfer layer. The seawater is evaporated into steam. The steam is condensed on 4 sides of the condenser 2 and the fresh water surface to release heat to generate fresh water. Seawater ascends along a seawater ascending channel between the high side surface of the condenser and the heat insulation plate 4 to supplement seawater evaporated from the water absorption layer of the photo-thermal plate. The seawater is continuously evaporated and continuously ascends for supplement, the salt concentration of the water absorption layer of the photo-thermal plate is increased, the specific gravity is increased, and the concentrated seawater is formed. Under the action of gravity, the concentrated seawater flows to the lower side surface of the condenser and flows back to the seawater surface. And a circulation that seawater ascends and concentrated seawater descends is formed. The temperature of the ascending seawater absorbs the condensation heat from the high side surface of the condenser is increased, and the water yield is increased.

The lock catch is opened, the light and heat plate 1 is turned upwards, and fresh water is taken out from the condenser 2 by a water taking tool. As is the taking of water from the well.

Claims

1. The utility model provides a flip formula solar energy sea water desalination device, its structure includes condenser, light hot plate, square seal circle, heat insulating board, connecting bolt, pivot screw, condenser communicating pipe, its characterized in that: the top surface of the condenser is an inclined plane, the condenser is provided with 1 pair of side surfaces with different heights, the 2 side surfaces are respectively called a high side surface and a low side surface, a photothermal plate covers the top surface of the condenser, the high side surface and a photothermal plate intersect to form a rotating shaft central line, a rotating shaft screw is connected with the condenser and the photothermal plate at the rotating shaft central line, the photothermal plate can be turned upwards, the photothermal plate is a photothermal layer, a heat transfer layer, a water absorption layer and a frame from top to bottom, the water absorption layer extends to the bottom of the condenser through the high side surface, a square sealing ring is fixed on the frame, a gap between the photothermal plate and the condenser is sealed, the 2 condensers are connected into a body 1 by a connecting bolt, the water absorption layer is tightly pressed and attached to the high side surface by a heat insulation plate between the high side surfaces of the 2 condensers to form a seawater ascending channel, the inclined photothermal plate water absorption layer is a concentrated seawater descending channel, the bottom of the 2 condensers is communicated with the 2 condensers, forming the flip-type solar seawater desalination device.

2. The flip type solar seawater desalination device as claimed in claim 1, wherein: the photo-thermal plate comprises a light transmitting layer, a photo-thermal layer, a water absorbing layer and a frame from top to bottom.