Solar heat collection type seawater desalination device

Abstract

The utility model belongs to the technical field of seawater desalination, and particularly relates to a solar heat collection type seawater desalination device which comprises an evaporation box, a solar evaporation mechanism is arranged on the top surface of the evaporation box, a water inlet of the evaporation box is communicated with seawater, and a water outlet of the evaporation box is communicated with a condensation assembly; the solar evaporation mechanism comprises a solar heat collection assembly and an evaporation assembly, the solar heat collection assembly is arranged on the top face of the evaporation box, the evaporation assembly is arranged in the evaporation box, a water outlet of the condensation assembly is communicated with the evaporation assembly and an external water using device, and the solar heat collection assembly provides heat for the evaporation assembly. The solar heat collection assembly provides heat for the evaporation assembly, after steam enters the condensation assembly, the heat is released and becomes water drops, the heat is taken away through the condensation assembly and used for providing domestic water for an external water using device, and when sunlight is insufficient due to poor weather, the heat of the condensation assembly is used for assisting in providing heat for the evaporation assembly.

Description

Technical Field

[0001] The utility model belongs to the technical field of seawater desalination, and in particular relates to a solar heat collection type seawater desalination device. Background Art

[0002] There are many methods for desalination of seawater, such as conventional distillation, reverse osmosis membrane method, dialysis method, etc. Solar desalination through solar distillation is one of the important methods. Its operation is basically to absorb solar energy from seawater, and then condense it after rapid evaporation to obtain fresh water. This method does not consume conventional energy, and has a simple structure and is easy to operate.

[0003] At present, the overall utilization rate of solar energy in most related devices is not very high. While achieving seawater desalination through solar distillation methods, it is impossible to achieve multi-level comprehensive utilization of other functions, and it is impossible to achieve multi-level utilization of energy in the entire seawater desalination process, resulting in energy waste. Utility Model Content

[0004] The utility model aims to provide a solar heat collection type seawater desalination device to solve the above problems.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] A solar heat collection type seawater desalination device comprises an evaporation box, the top surface of which is provided with a solar evaporation mechanism, the water inlet of which is connected to seawater, and the water outlet of which is connected to a condensation component;

[0007] The solar evaporation mechanism includes a solar heat collection component and an evaporation component. The solar heat collection component is arranged on the top surface of the evaporation box, and the evaporation component is arranged in the evaporation box. The water outlet of the condensation component is connected to the evaporation component and an external water use device. The solar heat collection component provides heat for the evaporation component.

[0008] Preferably, the solar thermal collection component includes a solar thermal collection plate fixedly connected to the top surface of the evaporation box, the top surface of the solar thermal collection plate is concave, the top surface of the solar thermal collection plate is fixedly connected to a bracket, the top surface of the bracket is fixedly connected to a reflecting plate, the bottom surface of the reflecting plate is fixedly connected to a concave mirror, the lower end of the concave surface of the solar thermal collection plate is fixedly connected to a heat conductor, the heat conductor is located directly below the concave mirror, and the heat conductor transfers heat to the evaporation component.

[0009] Preferably, the evaporation component includes two heating tubes fixedly connected to the internal top wall of the evaporation box, the two heating tubes are horizontally and symmetrically arranged, the heating tubes are fixedly connected to the heat conductor, and the internal bottom wall of the evaporation box is provided with an auxiliary evaporation part, and the auxiliary evaporation part is connected to the condensation component.

[0010] Preferably, the condensation assembly includes a condensation box connected to the water outlet of the evaporation box, a heat absorption pipe is arranged around the outer wall of the condensation box, the water inlet of the heat absorption pipe is connected to the external water tank, the water outlet of the heat absorption pipe is connected to the water inlet of a water pump, the water outlet of the water pump is connected to a first connecting pipe and a second connecting pipe, the second connecting pipe is connected to an external water use device, and the first connecting pipe is connected to the auxiliary evaporation part.

[0011] Preferably, the auxiliary evaporation part includes an auxiliary heating pipe laid on the inner bottom wall of the evaporation box, a water inlet of the auxiliary heating pipe is connected to the first connecting pipe, and a water outlet of the auxiliary heating pipe is connected to the outside.

[0012] Preferably, the water inlet of the evaporation box is connected to a water inlet pipe, a filter is provided at one end of the water inlet pipe away from the evaporation box, and the water inlet pipe is connected to the seawater.

[0013] Preferably, a heat-insulating layer is circumferentially fixedly connected to the outer wall of the condensing box, and the heat-absorbing pipe is located between the condensing box and the heat-insulating layer.

[0014] Compared with the prior art, the utility model has the following advantages and technical effects:

[0015] The solar thermal collection component provides heat for the evaporation component, causing the seawater to evaporate in the evaporation box. At the same time, after the steam enters the condensation component, it releases heat and turns into water droplets under the action of the condensation component. The heat is taken away by the condensation component and used to provide domestic water for external water-using devices. When the weather is bad and there is insufficient sunlight, the heat of the condensation component is used to assist the evaporation component in providing heat. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the auxiliary heating tube.

[0019] Among them, 1. Evaporation box; 2. Solar collector plate; 3. Bracket; 4. Reflection plate; 5. Concave mirror; 6. Heat conductor; 7. Heating tube; 8. Condensation box; 9. Heat absorption tube; 10. Insulation layer; 11. Water inlet pipe; 12. First connecting pipe; 13. Second connecting pipe; 14. Auxiliary heating pipe; 15. Filter; 16. Water pump. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Reference Figure 1 to Figure 2 As shown, the utility model provides a solar heat collection type seawater desalination device, comprising an evaporation box 1, a solar evaporation mechanism is arranged on the top surface of the evaporation box 1, a water inlet of the evaporation box 1 is connected to seawater, and a water outlet of the evaporation box 1 is connected to a condensation component;

[0023] The solar evaporation mechanism includes a solar heat collection component and an evaporation component. The solar heat collection component is arranged on the top surface of the evaporation box 1, and the evaporation component is arranged in the evaporation box 1. The water outlet of the condensation component is connected with the evaporation component and the external water device. The solar heat collection component provides heat for the evaporation component.

[0024] The solar thermal collection component provides heat for the evaporation component, causing the seawater to evaporate in the evaporation box 1. At the same time, after the steam enters the condensation component, it releases heat and turns into water droplets under the action of the condensation component. The heat is taken away by the condensation component and used to provide domestic water for external water-using devices. When the weather is bad and the sunlight is insufficient, the heat of the condensation component is used to assist the evaporation component in providing heat.

[0025] A further optimized solution is provided, wherein the solar thermal collection assembly includes a solar thermal collection panel 2 fixedly connected to the top surface of the evaporation box 1, the top surface of the solar thermal collection panel 2 is a concave surface, the top surface of the solar thermal collection panel 2 is fixedly connected to a bracket 3, the top surface of the bracket 3 is fixedly connected to a reflecting plate 4, the bottom surface of the reflecting plate 4 is fixedly connected to a concave mirror 5, the lower end of the concave surface of the solar thermal collection panel 2 is fixedly connected to a heat conductor 6, the heat conductor 6 is located directly below the concave mirror 5, and the heat conductor 6 transfers heat to the evaporation assembly.

[0026] Sunlight irradiates the concave surface of the solar collector plate 2, and reaches the reflector plate 4 after being reflected by the solar collector plate 2. After being reflected by the reflector plate 4, the reflector plate 4 reaches the heat conductor 6. The heat conductor 6 is hemispherical and can better absorb the light reflected by the reflector plate 4.

[0027] According to a further optimization scheme, the evaporation component includes two heating tubes 7 fixedly connected to the internal top wall of the evaporation box 1, the two heating tubes 7 are horizontally and symmetrically arranged, the heating tubes 7 are fixedly connected to the heat conductor 6, and the internal bottom wall of the evaporation box 1 is provided with an auxiliary evaporation part, which is connected to the condensation component.

[0028] The heating speed is faster when a plurality of heating tubes 7 are arranged at equal intervals along the length direction of the evaporation box 1 .

[0029] A further optimized solution is that the condensing component includes a condensing box 8 connected to the water outlet of the evaporating box 1, a heat absorbing tube 9 is arranged around the outer wall of the condensing box 8, the water inlet of the heat absorbing tube 9 is connected to the external water tank, the water outlet of the heat absorbing tube 9 is connected to the water inlet of the water pump 16, the water outlet of the water pump 16 is connected to the first connecting tube 12 and the second connecting tube 13, the second connecting tube 13 is connected to the external water use device, and the first connecting tube 12 is connected to the auxiliary evaporating part.

[0030] The external water tank contains domestic water, which is connected to the heat absorption pipe 9 through a water pump. After the steam enters the condenser 8, it releases heat and turns into water droplets under the action of the heat absorption pipe 9. The heat is absorbed by the water in the heat absorption pipe 9, so that the cold water in the heat absorption pipe 9 is turned into hot water and used to provide domestic hot water for the external water use device. When the weather is bad and the sunlight is insufficient, the heat of the heat absorption pipe 9 is used to provide heat for the auxiliary evaporation part.

[0031] According to a further optimization scheme, the auxiliary evaporation part includes an auxiliary heating pipe 14 laid on the inner bottom wall of the evaporation box 1, the water inlet of the auxiliary heating pipe 14 is connected to the first connecting pipe 12, and the water outlet of the auxiliary heating pipe 14 is connected to the outside.

[0032] According to a further optimization scheme, the water inlet of the evaporation box 1 is connected with a water inlet pipe 11, a filter screen 15 is arranged at one end of the water inlet pipe 11 away from the evaporation box 1, and the water inlet pipe 11 is connected with seawater.

[0033] According to a further optimized solution, a heat-insulating layer 10 is circumferentially fixedly connected to the outer wall of the condensing box 8 , and the heat-absorbing pipe 9 is located between the condensing box 8 and the heat-insulating layer 10 .

[0034] The working process of the utility model is as follows:

[0035] The seawater is filtered through the filter 15 to filter out debris and enters the evaporation box 1 through the water inlet pipe 11. The sunlight irradiates the concave surface of the solar collector 2, and reaches the reflective plate 4 after being reflected by the solar collector 2. The reflective plate 4 reflects and reaches the heat conductor 6. The heat conductor 6 is hemispherical and can better absorb the light reflected by the reflective plate 4. A plurality of heating tubes 7 are arranged at equal intervals along the length direction of the evaporation box 1 to increase the heating speed. After the seawater becomes steam and enters the condensation box 8, it releases heat under the action of the heat absorption tube 9 and becomes water droplets. The heat is absorbed by the heat absorption tube 9, so that the cold water in the heat absorption tube 9 becomes hot water and is used to provide domestic hot water for external water use devices. When the weather is bad and the sunlight is insufficient, the heat of the heat absorption tube 9 is used to provide heat for the auxiliary heating tube 14 to assist the evaporation of seawater.

[0036] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A solar thermal desalination device, characterized in that: It comprises an evaporation box (1), the top surface of which is provided with a solar evaporation mechanism, the water inlet of the evaporation box (1) is connected to seawater, and the water outlet of the evaporation box (1) is connected to a condensation component; The solar evaporation mechanism comprises a solar heat collection component and an evaporation component, wherein the solar heat collection component is arranged on the top surface of the evaporation box (1), and the evaporation component is arranged inside the evaporation box (1). The water outlet of the condensation component is connected to the evaporation component and an external water-using device, and the solar heat collection component provides heat for the evaporation component.

2. A solar thermal desalination device according to claim 1, characterized in that: The solar heat collecting assembly comprises a solar heat collecting plate (2) fixedly connected to the top surface of the evaporation box (1); the top surface of the solar heat collecting plate (2) is a concave surface; the top surface of the solar heat collecting plate (2) is fixedly connected to a bracket (3); the top surface of the bracket (3) is fixedly connected to a reflecting plate (4); the bottom surface of the reflecting plate (4) is fixedly connected to a concave mirror (5); the lower end of the concave surface of the solar heat collecting plate (2) is fixedly connected to a heat conductor (6); the heat conductor (6) is located directly below the concave mirror (5); the heat conductor (6) is located at the focus of the concave mirror (5); and the heat conductor (6) transfers heat to the evaporation assembly.

3. A solar thermal desalination device according to claim 2, characterized in that: The evaporation component comprises two heating tubes (7) fixedly connected to the internal top wall of the evaporation box (1), the two heating tubes (7) are arranged horizontally and symmetrically, the heating tubes (7) are fixedly connected to the heat conductor (6), and the internal bottom wall of the evaporation box (1) is provided with an auxiliary evaporation part, and the auxiliary evaporation part is connected to the condensation component.

4. A solar thermal desalination device according to claim 3, characterized in that: The condensation assembly comprises a condensation box (8) connected to the water outlet of the evaporation box (1); a heat absorption pipe (9) is arranged around the outer wall of the condensation box (8); the water inlet of the heat absorption pipe (9) is connected to an external water tank; the water outlet of the heat absorption pipe (9) is connected to the water inlet of a water pump (16); the water outlet of the water pump (16) is connected to a first connecting pipe (12) and a second connecting pipe (13); the second connecting pipe (13) is connected to an external water-using device; and the first connecting pipe (12) is connected to the auxiliary evaporation part.

5. A solar thermal desalination device according to claim 4, characterized in that: The auxiliary evaporation section comprises an auxiliary heating pipe (14) laid on the inner bottom wall of the evaporation box (1), the water inlet of the auxiliary heating pipe (14) being connected to the first connecting pipe (12), and the water outlet of the auxiliary heating pipe (14) being connected to the outside.

6. A solar thermal desalination device according to claim 1, characterized in that: The water inlet of the evaporation box (1) is connected to a water inlet pipe (11), a filter screen (15) is provided at one end of the water inlet pipe (11) away from the evaporation box (1), and the water inlet pipe (11) is connected to the seawater.

7. A solar thermal desalination device according to claim 4, characterized in that: The outer wall of the condensing box (8) is circumferentially fixedly connected with a heat-insulating layer (10), and the heat-absorbing pipe (9) is located between the condensing box (8) and the heat-insulating layer (10).

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