Wastewater recycling device for photo-thermal field station

Abstract

The utility model relates to a photo-thermal field station waste water recycling device which comprises a cleaning assembly used for cleaning a straight face heliostat, a liquid storage trailer used for recycling waste water and a cleaning vehicle used for fixing and moving the cleaning assembly, and the liquid storage trailer is located below the cleaning assembly and dragged by the cleaning assembly. The liquid storage trailer comprises an inclined water receiving plate and a liquid storage tank communicated with the water receiving plate, and the surface area of the water receiving plate is larger than the bottom surface area of the cleaning assembly so that the water receiving plate can completely receive cleaning waste water scraped from the straight-face heliostat by a soft scraper on the cleaning assembly. The device can solve the problem of waste caused by direct discharge of wastewater generated by cleaning the straight-face heliostat, and provides technical support for zero discharge of wastewater in a whole plant by combining with the current situation that a project site where the photo-thermal field station is constructed is extremely short of water.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater recovery, in particular to a wastewater recycling device for a photothermal station. Background Art

[0002] Solar thermal power generation is a way of generating electricity using solar energy. It focuses sunlight on a specific area through solar thermal concentrators (such as straight heliostats or curved heliostats), raising the temperature of the area and generating steam, which is then used to drive turbines to generate electricity. This technology is environmentally friendly, renewable and efficient, and is considered to be a potential new clean energy source. In terms of environmental pollution, solar thermal power generation is a clean production process with minimal harm to the environment. However, large-scale solar thermal stations require the use of tens of thousands of straight heliostats, so the wastewater generated by the solar thermal stations is mainly concentrated in the cleaning wastewater generated by cleaning the heliostats. The existing cleaning wastewater is directly discharged into the natural environment, causing water waste. Utility Model Content

[0003] The purpose of the utility model is to provide a wastewater recycling device for a solar thermal power plant. In view of the current situation of extreme water shortage at the project site where the solar thermal power plant is built, research on terminal wastewater recycling and other related treatment technologies is carried out, water classification and recycling are strictly refined, the amount of fresh water intake and external discharge is reduced, technical support is provided for the implementation of zero wastewater discharge in the whole plant, and the problem of waste caused by direct discharge of cleaning wastewater is solved.

[0004] In order to solve the above problems, the utility model provides a wastewater recycling device for a solar thermal power station, comprising a cleaning component for cleaning a straight-facing heliostat, a liquid storage trailer for recovering wastewater, and a cleaning vehicle for fixing and moving the cleaning component, the liquid storage trailer being located below the cleaning component and being towed by the cleaning component, the liquid storage trailer comprising an inclined water receiving plate and a liquid storage tank connected to the water receiving plate, the surface area of ​​the water receiving plate being larger than the bottom area of ​​the cleaning component so that the water receiving plate can completely receive the cleaning wastewater scraped from the straight-facing heliostat by the soft scraper on the cleaning component.

[0005] The wastewater recycling device provided by the utility model also has the following technical features:

[0006] Furthermore, the cleaning vehicle is provided with a clean water tank and a waste water tank, the waste water tank and the liquid storage tank are connected via a pipeline, and the clean water tank is connected to the cleaning component.

[0007] Furthermore, a water pump is provided on the passage between the waste water tank and the liquid storage tank.

[0008] Furthermore, the cleaning component includes a main frame plate parallel to the straight-facing heliostat, and the soft scraper and baffle perpendicular to the main frame plate are fixedly provided on the main frame plate, the baffle is located at the front end of the cleaning component in the forward direction to prevent the spray water from escaping, and the soft scraper is located at the rear end of the cleaning component in the forward direction.

[0009] Furthermore, the liquid storage trailer also includes a frame, the front end of the frame is rotatably connected to a traction shaft fixedly provided below the front end of the main frame plate in the forward direction, and the water receiving plate and the liquid storage tank are fixedly provided on the frame.

[0010] Furthermore, the horizontal height of the water receiving plate at the front end of the frame is higher than that of the other end opposite thereto, a fence is provided around the water receiving plate, and the liquid storage tank is located at the rear end of the frame.

[0011] Furthermore, a cleaning drum and a spray pipe are also provided on the main frame plate; the length of the baffle in the direction in which it extends from the main frame plate is between the lengths of the cleaning drum and the spray pipe in the direction in which they extend from the main frame plate; the length of the soft scraper in the direction in which it extends from the main frame plate is greater than the length of the cleaning drum in the direction in which it extends from the main frame plate.

[0012] The utility model has the following beneficial effects: the device improves the existing cleaning device of the straight-facing heliostat, so that the cleaning wastewater generated by the cleaning component when cleaning the straight-facing heliostat will be blocked by the soft scraper or scraped off the straight-facing heliostat, and the wastewater flows along the soft scraper into the water receiving plate of the liquid storage trailer and is stored in the liquid storage tank, and then the wastewater can be taken to the wastewater treatment station by the cleaning vehicle and reprocessed into clean water that can be used to clean the straight-facing heliostat, so as to achieve the purpose of recycling the wastewater in the solar thermal power station. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the non-direct-facing heliostat of the utility model;

[0015] Figure 3 for Figure 2 Detailed view of point A in the middle;

[0016] Figure 4 It is a structural schematic diagram of the non-straight-face heliostat of the utility model from a right-side perspective;

[0017] Figure 5 for Figure 4 Detailed view of point B in the middle;

[0018] Figure 6It is a schematic diagram of the structure of the non-straight-surface heliostat of the utility model from a top-down perspective;

[0019] Figure 7 It is a structural schematic diagram of the liquid storage trailer of the utility model. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0021] like Figures 1 to 7 In the embodiment of the solar thermal power plant wastewater recycling device of the utility model shown, the solar thermal power plant wastewater recycling device includes a cleaning component 1 for cleaning the directly-facing heliostat 4, a liquid storage trailer 2 for recovering wastewater, and a cleaning vehicle 3 for fixing and moving the cleaning component 1. The liquid storage trailer 2 is located below the cleaning component 1 and is towed by the cleaning component 1. The liquid storage trailer 2 includes an inclined water receiving plate 22 and a liquid storage tank 23 connected to the water receiving plate 22 through a water inlet channel 232. The surface area of ​​the water receiving plate 22 is greater than the bottom area of ​​the cleaning component 1 so that the water receiving plate 22 can completely receive the cleaning wastewater scraped from the directly-facing heliostat 4 by the soft scraper 14 on the cleaning component 1. The soft scraper 14 can also make the cleaning effect of the directly-facing heliostat 4 better. When the cleaning vehicle 3 uses the cleaning component 1 to clean the straight-facing heliostat 4, the generated cleaning waste water will be blocked by the soft scraper 14 or scraped off the straight-facing heliostat 4, and the waste water will flow along the soft scraper 14 to the water receiving plate 22 of the liquid storage trailer 2 and be stored in the liquid storage tank 23. After that, the waste water can be taken to the wastewater treatment station by the cleaning vehicle 3 and reprocessed into clean water that can be used to clean the straight-facing heliostat 4, so as to achieve the purpose of recycling waste water in the solar thermal power station.

[0022] In one embodiment of the present application, preferably, Figure 1 , Figure 2 As shown, the cleaning vehicle 3 is provided with a clean water tank 32, a waste water tank 31 and a mechanical arm 33. The waste water tank 31 and the liquid storage tank 23 are connected by pipelines. As shown in the figure, a docking port 1 232 and a docking port 2 311 are provided and connected by pipelines; and a water pump is provided on the passage between the waste water tank 31 and the liquid storage tank 23, so that the waste water in the liquid storage tank 23 can be circulated into the waste water tank 31, so that the cleaning vehicle 3 can work for a longer time; because there will inevitably be loss of cleaning water, the volume of the waste water tank 31 is set smaller than that of the clean water tank; the clean water tank 32 is connected to the cleaning component 1, and the relevant pipelines are arranged on the mechanical arm 33, and the mechanical arm 33 is used to support the cleaning component 1.

[0023] In one embodiment of the present application, preferably, Figures 1 to 6As shown, the cleaning wastewater generated by the cleaning component 1 will be blocked by the soft scraper 14 or scraped off from the directly facing heliostat 4. Specifically, the cleaning component 1 includes a main frame plate 13 parallel to the directly facing heliostat 4, and the main frame plate 13 is fixedly provided with a soft scraper 14 and a baffle 15 perpendicular to the main frame plate 13. The main frame plate 13 is also provided with a cleaning drum 11 and a spray pipe 12, and the cleaning drum 11 and the spray pipe 13 are arranged between the soft scraper 14 and the baffle 15; the cleaning drum 11 can use a vertical drum with a central axis perpendicular to the horizontal plane (that is, the drum shown in the figure), or a horizontal drum with a central axis perpendicular to the directly facing heliostat 4, and the type of the cleaning drum 11 is not limited here; the spray pipe 12 is arranged on both sides of the cleaning drum 11, and the high-pressure water mist sprayed by it can effectively clean the directly facing heliostat 4; the baffle 15 The plate 15 is located at the front end of the cleaning component 1 in the forward direction to prevent the spray water from escaping, and the soft scraper 14 is located at the rear end of the cleaning component 1 in the forward direction; the space between the main frame plate 13, the soft scraper 14 and the baffle 15 is the main area for collecting waste water in this device; the baffle 15 also uses soft materials to prevent scratching the directly facing heliostat 4, and the length of the baffle 15 in the direction extending from the main frame plate 13 is between the length of the cleaning drum 11 and the spray pipe 12 in the direction extending from the main frame plate 13, so as to prevent the baffle 15 from contacting the directly facing heliostat 4 and thus hindering the subsequent cleaning work of the spray pipe 12 and the cleaning drum 11; the length of the soft scraper 14 in the direction extending from the main frame plate 13 is greater than the length of the cleaning drum 11 in the direction extending from the main frame plate 13, which can effectively play the role of blocking and scraping off waste water.

[0024] In one embodiment of the present application, preferably, Figure 4 , Figure 5 As shown, the liquid storage trailer 2 is located below the cleaning component 1 and is towed by the cleaning component 1. Specifically, the liquid storage trailer 2 also includes a frame 21. The front end of the frame 21 is rotatably connected to a traction shaft 131 fixedly provided below the front end of the main frame plate 13 in the forward direction. A bearing hole 211 is provided at the corresponding front end of the frame 21, so that the cleaning vehicle 3 can drive the liquid storage trailer 2 to turn synchronously when turning. The water receiving plate 22 and the liquid storage tank 23 are fixedly provided on the frame 21.

[0025] In one embodiment of the present application, preferably, Figure 4 , Figure 5 , Figure 7 As shown, the inclined setting of the water receiving plate 22 can effectively collect waste water. Specifically, the horizontal height of the water receiving plate 22 at the front end of the frame 21 is higher than the other end opposite thereto. A fence 221 is provided around the water receiving plate 22, and the liquid storage tank 23 is located at the rear end of the frame 21.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A wastewater recycling device for a solar thermal power station, characterized in that: The invention comprises a cleaning component (1) for cleaning a straight-facing heliostat (4), a liquid storage trailer (2) for recovering waste water, and a cleaning vehicle (3) for fixing and moving the cleaning component (1), wherein the liquid storage trailer (2) is located below the cleaning component (1) and is towed by the cleaning component (1), and the liquid storage trailer (2) comprises an inclined water receiving plate (22) and a liquid storage tank (23) connected to the water receiving plate (22), wherein the surface area of ​​the water receiving plate (22) is larger than the bottom surface area of ​​the cleaning component (1) so that the water receiving plate (22) can completely receive the cleaning waste water scraped from the straight-facing heliostat (4) by a soft scraper (14) on the cleaning component (1).

2. The wastewater recycling device for a solar thermal power plant according to claim 1 is characterized in that: The cleaning vehicle (3) is provided with a clean water tank (32) and a waste water tank (31); the waste water tank (31) and the liquid storage tank (23) are connected via a pipeline; and the clean water tank (32) is connected to the cleaning assembly (1).

3. The wastewater recycling device for a solar thermal power plant according to claim 2 is characterized in that: A water pump is provided on the passage between the waste water tank (31) and the liquid storage tank (23).

4. The wastewater recycling device for a solar thermal power plant according to claim 2 is characterized in that: The cleaning component (1) comprises a main frame plate (13) parallel to the straight-facing heliostat (4); the soft scraper plate (14) and the baffle plate (15) perpendicular to the main frame plate (13) are fixedly provided on the main frame plate (13); the baffle plate (15) is located at the front end of the cleaning component (1) in the forward direction to prevent the spray water from escaping; the soft scraper plate (14) is located at the rear end of the cleaning component (1) in the forward direction.

5. The wastewater recycling device for a solar thermal power plant according to claim 4 is characterized in that: The liquid storage trailer (2) further comprises a vehicle frame (21), the front end of the vehicle frame (21) being rotatably connected to a traction shaft (131) fixedly provided below the front end of the main frame plate (13) in the forward direction, and the water receiving plate (22) and the liquid storage tank (23) being fixedly provided on the vehicle frame (21).

6. The wastewater recycling device for a solar thermal power plant according to claim 5 is characterized in that: The water receiving plate (22) is at a higher level at the front end of the vehicle frame (21) than at the other end opposite thereto, a fence (221) is provided around the water receiving plate (22), and the liquid storage tank (23) is located at the rear end of the vehicle frame (21).

7. The wastewater recycling device for a solar thermal power plant according to claim 4 is characterized in that: A cleaning drum (11) and a spray pipe (12) are also provided on the main frame plate (13); the length of the baffle plate (15) in the direction in which it extends from the main frame plate (13) is between the lengths of the cleaning drum (11) and the spray pipe (12) in the direction in which they extend from the main frame plate (13); and the length of the soft scraper (14) in the direction in which it extends from the main frame plate (13) is greater than the length of the cleaning drum (11) in the direction in which it extends from the main frame plate (13).

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