CN103071305B - Vacuum tube type solar solution regenerator - Google Patents

Abstract

The invention relates to a vacuum tube type solar energy solution regenerator, which is composed of a liquid separation pipe, a liquid collection tank and several solar energy solution regeneration pipes. The solar vacuum tube heat collection tube is a straight-through all-glass vacuum solar heat collection tube. The upper end of the solar vacuum heat collection tube is provided with a liquid nozzle. A solution micro-channel parallel to the axial direction of the solar vacuum heat collecting tube, and a plurality of solution micro-channels communicate with the spray holes of the liquid-dispensing nozzle in one-to-one correspondence. The invention utilizes solar energy to regenerate the solution, saves energy on the consumption of conventional heat sources, integrates a solar vacuum heat collector and a solution regenerator, simplifies the system structure, and improves the effect of solution regeneration.

Description

Vacuum Tube Solar Solution Regenerator

technical field

The invention relates to a solution regenerator, in particular to a vacuum tube type solar solution regenerator.

Background technique

As a new type of dehumidification technology, solution dehumidification can make the treated air have a very low moisture content, and has become a major research hotspot in the field of air conditioning. The solution regeneration equipment is an important part of the solution dehumidification system, and its operation status, efficiency and initial investment directly affect the performance and economy of the system. Since regeneration needs to consume a lot of heat, using solar energy for solution regeneration can greatly reduce the conventional energy consumption of the solution dehumidification system, and improve the economy and energy saving of the system. The existing solar solution regeneration methods are divided into two types: one is to use conventional solar collectors to produce hot water, and send it into the solution to indirectly heat the solution for regeneration. The disadvantage of this method is that the system is more complicated and the regeneration effect is reduced. ; The second is to combine the regenerator with the solar collector. At present, the flat solar solution regenerator is generally used. The flat-panel solar solution regenerator has the advantages of large lighting area, simple structure, and reliable operation. However, due to the large air convection heat loss of the flat-panel solar solution regenerator, and the water vapor is easy to condense on the inner surface of the glass cover, the thermal efficiency And the regeneration efficiency of the solution is reduced. Solar vacuum heat collectors have the advantages of high heat collection temperature and high efficiency, and have been widely used in my country. Therefore, it is necessary to use solar vacuum heat collectors to develop a new solution regenerator to make up for the weakness of flat-plate solar solution regenerators and improve solar energy. The utilization rate and the effect of solution regeneration.

Contents of the invention

The present invention aims to provide a vacuum tube type solar energy solution regenerator, which is used to overcome the shortcomings of the existing solar energy solution regeneration system, and improve the thermal efficiency of solar energy and the effect of solution regeneration.

In order to achieve the above object, the technical solution of the present invention is: a vacuum tube type solar energy solution regenerator, which is composed of a liquid distribution pipe, a liquid collection tank and several solar energy solution regeneration pipes, and is characterized in that: the solar energy solution regeneration pipe includes a solar vacuum heat collection pipe , heat-conducting inner cylinder, solution micro-flow channel, and liquid-dispensing nozzle; the solar vacuum tube heat collector is a straight-through all-glass solar vacuum heat-collecting tube, and the upper end of the solar vacuum heat-collecting tube is equipped with a liquid-dispensing nozzle, and the inner wall of the solar vacuum tube heat-collecting tube is closely attached with In the heat conduction inner cylinder, the inner wall of the heat conduction inner cylinder is provided with a plurality of solution microchannels parallel to the axial direction of the solar vacuum heat collection tube, and the plurality of solution microchannels communicate with the spray holes of the liquid separation nozzle in one-to-one correspondence.

The axis of the solar vacuum heat collecting tube and the horizontal plane are at an inclination angle of 10 ^o ~ 80 ^o .

The beneficial effects of the present invention are:

1. Using solar energy to regenerate the solution saves the consumption of conventional heat sources.

2. The combination of the solar vacuum heat collecting tube and the solution regenerator simplifies the solution regeneration system, increases the temperature of the solution regeneration, and ensures the concentration of the solution after regeneration.

3. The multiple solution micro-channels set in the heat conduction inner cylinder greatly increase the heating area of the solution, and greatly increase the contact area with the air, so that the regeneration effect of the solution is good. The solution forms a liquid film on the surface of the micro-channel, and flows down along the solution micro-channel, which reduces the amount of liquid entrained in the air and the loss of the solution.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is the working schematic diagram of single solar energy solution regeneration pipe of the present invention;

Fig. 3 is a cross-sectional schematic view of a single solar solution regeneration pipe of the present invention;

Fig. 4 is a schematic structural view of the liquid separation nozzle of the present invention.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

As shown in Figures 1 to 4, the vacuum tube type solar solution regenerator of the present invention includes a liquid distribution pipe 1, a liquid separation nozzle 2, a solar solution regeneration pipe 3, a frame 4, a liquid collection tank 5, a liquid outlet pipe 6, a solution Micro flow channel 7, heat conduction inner cylinder 8, liquid spray hole 9, solar vacuum heat collecting tube 10.

Each solar solution regeneration tube 3 is composed of a solar vacuum heat collection tube 10 , a heat conduction inner cylinder 8 , a solution microchannel 7 and a liquid separation nozzle 2 . The solar vacuum heat collecting tube 10 adopts a straight-through type all-glass solar vacuum heat collecting tube. In this example, the outer diameter is 100 mm, and the inclination angle between the solar vacuum heat collecting tube 10 axis and the horizontal plane is 30 ^° . The heat-conducting inner cylinder 8 is closely attached to the inner wall of the solar vacuum heat collecting tube 10, and the inner wall of the heat-conducting inner cylinder 8 is provided with a plurality of solution microflow channels 7 parallel to the axial direction of the solar vacuum heat collecting tube. In this example, the heat-conducting inner cylinder 8 and The solution micro-channels 9 are all made of metal with better thermal conductivity, and anti-corrosion coating is sprayed on the surface. The upper end of the regenerator is provided with a liquid pipe 1, the lower end of the regenerator is provided with a liquid collection tank 5, and the upper end of each solar solution regeneration pipe is provided with a liquid nozzle 2, and the spray hole 9 of the liquid nozzle 2 is in contact with the solution micro The runners 7 are in one-to-one correspondence.

When the solution is regenerated, the dilute solution is distributed to the liquid dispensing nozzle 2 of each solar solution regeneration pipe 3 through the dispensing pipe 1, and then flows to the corresponding solution microchannel 7 through the liquid spray hole 9 of the dispensing nozzle, and the dilute solution is in the form of Film-like downward flow. The solar vacuum heat collection tube 10 transfers the collected heat to the solution through the heat conduction inner cylinder 8 and the solution microchannel 7, the solution is heated, the temperature rises, a part of the water evaporates from the solution, and the air enters the heat conduction chamber from the bottom of the solar vacuum heat collection tube In the inner chamber of the cylinder 8, it rises under the effect of the buoyancy force, mixes with the water vapor evaporated from the solution, and finally the high-temperature and high-humidity air flows out from the upper part of the solar solution regeneration tube 3 . During the descending process of the solutions in the microchannels 7 of each solution, the solubility and temperature of the solutions continue to rise, and they are finally collected into the liquid collection tank 5 to complete the regeneration of the solution.

It is generally required that the flow rate and pressure loss in the liquid distribution pipe be small so that the dilute solution can be evenly distributed to the regeneration pipes of the solar energy solution; and the static pressure of each liquid spray hole of the liquid distribution nozzle should be basically equal in order to distribute the solution evenly to each solution. runner. Both the thermally conductive inner cylinder and the solution microchannel should be made of materials with good thermal conductivity, and corresponding anti-corrosion treatment should be carried out according to the characteristics of the solution to be regenerated.

In this embodiment, the solution micro-channel 7 adopts a crescent shape with the concave surface facing upwards. From the outer edge of the solution micro-channel to the heat-conducting inner cylinder, the cross-sectional area of the solution micro-channel gradually increases, and the solution micro-channel is welded in the heat-conducting inner tube. In this way, the heat exchange area between the solution and the solar vacuum heat collecting tube can be increased, and the water vapor evaporated from the solution can be taken away by the air.

In this embodiment, the liquid-dispensing nozzle 2 is designed to be circular, similar to the shower head of a shower, and the lower surface of the circular ring is provided with a plurality of liquid spray holes 9 corresponding to the solution microchannel 7, which can be The dilute solution is sent to each solution microchannel, and the liquid distribution pipe is connected to the left and right symmetrical sides of the upper plane of the liquid distribution nozzle ring. Adopting this structure is beneficial to evenly distribute the dilute solution to each solar solution regeneration tube and each solution micro-channel therein.

As mentioned above, the present invention can be better realized; the foregoing embodiments are only preferred embodiments of the present invention, and are not used to limit the scope of the present invention; that is, all equivalent changes and modifications made according to the contents of the present invention are all Covered by the protection scope of the claims of the present invention.

Claims (2)

1. a vacuum tube type solar energy solution regenerator, formed by separating tube (1), collecting tank (5) and some solar energy regeneration of waste liquor pipes (3), it is characterized in that: the upper end of described solar energy solution regenerator is provided with separating tube (1), lower end is provided with collecting tank (5), and solar energy regeneration of waste liquor pipe (3) comprises solar vacuum heat-collecting pipe (10), heat conduction inner core (8), solution fluid channel (7), separatory shower nozzle (2); Solar vacuum heat-collecting pipe (10) is through-type full-glass solar energy collecting vacuum tube, solar vacuum heat-collecting pipe (10) upper end is provided with separatory shower nozzle (2), on solar vacuum heat-collecting pipe (10) internal face, be glued with heat conduction inner core (8), heat conduction inner core (8) inwall is provided with multiple and solution fluid channel (7) solar vacuum heat-collecting pipe axially parallel, multiple solution fluid channel (7) respectively with spray hole (9) the corresponding connection one by one of separatory shower nozzle (2), solution fluid channel (7) adopts concave upright crescent.

2. vacuum tube type solar energy solution regenerator according to claim 1, is characterized in that: described solar vacuum heat-collecting pipe (10) axle is horizontal by 10 ^o～80 ^oinclination angle.