CN219253459U

CN219253459U - Simple equipment for cleaning heliostat

Info

Publication number: CN219253459U
Application number: CN202320754855.8U
Authority: CN
Inventors: 姚志豪
Original assignee: Hengji Nengmai New Energy Technology Co ltd
Current assignee: Hengji Nengmai New Energy Technology Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-06-27
Anticipated expiration: 2033-04-07

Abstract

The utility model relates to simple equipment for cleaning heliostats, and belongs to the field of heliostats. The device comprises a cleaning device, a driving guiding device and a fixed positioning device; the two driving guide devices are respectively connected with the two driving guide devices through two ends of the cleaning device, are arranged above the heliostat mirror surface and can move along guide rails of the driving guide devices, and the two guide rails are respectively arranged on two sides of the heliostat truss through the fixed positioning devices; the cleaning device comprises a brush, a cleaning pipe and a rotary spray head; the plurality of brushes are hung below the cleaning pipe side by side through a central shaft, and an impeller is arranged on the central shaft in the cleaning pipe; a plurality of rotary spray heads are arranged at one side of the interior of the cleaning tube side by side; two ends of the cleaning pipe are respectively connected with the water delivery device. The utility model cleans heliostat mirrors with a small amount of water so as to most reliably reflect the maximum amount of sunlight onto the absorber tower.

Description

Simple equipment for cleaning heliostat

Technical Field

The utility model relates to a cleaning device for heliostats, in particular to simple equipment for cleaning heliostats, and belongs to the field of heliostats.

Background

Solar energy is used as a clean and renewable new energy source and is widely applied in production and life, but in order to effectively improve the utilization rate of solar energy, the cleaning work of heliostats must be followed so as to reflect sunlight to the heat absorption tower to the maximum extent.

The current heliostat cleaning modes mainly comprise manual cleaning, self-cleaning heliostat cleaning and mechanical cleaning. Among them, manual cleaning mainly involves a large amount of manpower to clean heliostats, but for tens of thousands of heliostats, the amount of work is large and the cleaning efficiency is low. The self-cleaning of heliostats mainly adopts self-cleaning glass, the dust adhesion force of the mirror surface is small, when raining, the rainwater can automatically take away the dust on the mirror surface, so as to achieve the purpose of cleaning the mirror surface, but most heliostats are mainly built in dry desert or plateau areas with little rain, and the cleaning mode almost loses effect. Therefore, at present, a mechanical cleaning mode is generally adopted, the existing mechanical cleaning mode generally adopts water cleaning, and comprises a flushing mode and a brushing mode, wherein the flushing mode is to flush dirt and dust with smaller adhesive force on the heliostat mirror surface through high-pressure water, the brushing mode is to brush the heliostat mirror surface through a roller brush, and the dirt with larger adhesive force is removed through friction force between temples on the roller brush and the heliostat mirror surface. But the flushing mode can only remove dirt and dust with smaller adhesive force, and the flushing mode is not suitable for tower type solar power stations, because the flushing mode is mainly established in dry areas such as deserts, plateaus and the like, has more dust and water resources and is required to be cleaned frequently, precious water resources are wasted, and scarce water resources are difficult to provide. Furthermore, high pressure flushing requires a large power source, and it is generally difficult to provide a high power supply in these areas. In the brushing mode, if the dirt with larger adhesive force is to be removed, the dirt needs to be repeatedly rubbed by using the roller brush, so that the time is long, and the required power is larger.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides simple equipment for cleaning heliostats, which utilizes simple equipment and uses a small amount of water to complete the cleaning work of the heliostats, and is particularly suitable for cleaning the heliostats of tower type solar thermal power generation, so that the heliostats reflect sunlight to a heat absorption tower to the maximum extent.

In order to achieve the above purpose, the specific technical scheme of the utility model is as follows:

a simplified apparatus for cleaning heliostats, the apparatus comprising a cleaning device, a drive guide device, and a fixed positioning device;

the two ends of the cleaning device are respectively connected with the two driving guide devices, the cleaning device is arranged above the heliostat mirror surface and can move along the guide rails of the driving guide devices, and the two guide rails are respectively arranged on two sides of the heliostat truss through the fixed positioning devices;

the cleaning device comprises a brush, a cleaning pipe and a rotary spray head; the plurality of brushes are hung below the cleaning pipe side by side through a central shaft, and impellers are arranged on the central shaft in the cleaning pipe; the plurality of rotary spray heads are arranged on one side of the interior of the cleaning pipe side by side; and two ends of the cleaning pipe are respectively connected with the water delivery device.

Further, the apparatus further comprises a self-locking stop means; the self-locking stop block device comprises stop blocks, and the two stop blocks are respectively arranged at two ends of the guide rail.

Further, the self-locking stop block device further comprises a guide pipe, the top ends of the two stop blocks are connected through the guide pipe, and the driving guide device is sleeved on the guide pipe.

Further, the device also comprises a limit displacement sensor and a control module, wherein the two limit displacement sensors are respectively arranged at two ends of the guide rail and are respectively connected with the control module in data, and the control module changes the water flow direction in the cleaning pipe according to the trigger signal of the limit displacement sensor.

Further, the rotary spray heads are divided into two rows and uniformly distributed on two sides of the interior of the cleaning pipe.

Further, the angle between the rotary sprayer and the heliostat is 45 degrees.

Further, the conveying device comprises a regulating valve, a water pump and a waterwheel; the two ends of the cleaning pipe are respectively connected with the regulating valves through water pipes, the two regulating valves are connected with the output port of the water pump through pipelines, and the input port of the water pump is connected with the waterwheel.

Further, the driving guide device comprises a guide rail, a hub, a bracket and a cross beam; the two ends of the cleaning pipe are respectively provided with the bracket, the wheel hub is arranged at the bottom end of the bracket, and the wheel hub is arranged in the guide groove of the guide rail and can move along the guide groove; and two ends of the guide rail are respectively connected with the fixed positioning device through the cross beam.

Further, the length direction of the guide rail is perpendicular to the axial direction of the cleaning device.

Further, the fixed positioning device comprises a connecting block and a fixed block; one end of the connecting block is connected with the driving guide device, the other end of the connecting block is fixed with the truss through the fixing block by taking the angle of the truss as a fixed reference.

The utility model has the beneficial effects that:

the utility model has simple structure and low cost, and can ensure that the heliostat mirror surface is clean and clean through semi-automatic or manual operation, thereby reflecting the maximum amount of sunlight onto the heat absorption tower most reliably.

The cleaning device is driven by a water pressure technology, the structure of the device is simplified, double rows of rotary spray heads are respectively at an angle of 45 degrees with the mirror surfaces of heliostats, the optimal spray angle and the maximum spray efficiency are achieved, the water consumption for cleaning is reduced, stubborn stains are removed through the hairbrushes, the mirror surfaces are clean, and the maximum reflection of sunlight is facilitated.

The utility model can fix and position the bearing and normal operation of the equipment by properly using the angle of the truss as a fixed reference through the fixed positioning device, and the fixed positioning device has the advantages of simple structure, convenient disassembly, stability and reliability, easy operation and capability of completing the installation work of the fixed positioning device at a low position.

According to the self-locking heliostat cleaning device, the guide device is driven to reciprocate along the guide groove and the guide pipe, and the self-locking stop block device is used for preventing the cleaning device from being separated from the heliostat.

Drawings

FIG. 1 is a schematic diagram of a simplified apparatus for cleaning heliostats of the utility model;

fig. 2 is a block diagram of a cleaning device according to the present utility model.

Wherein: 1-cleaning device, 1.1-brush, 1.2-cleaning pipe, 1.3-rotatory nozzle, 1.4-governing valve, 1.5-water pump, 1.6-waterwheel, 2-drive guider, 2.1-guide rail, 2.2-wheel hub, 2.3-support, 2.4-crossbeam, 3-fixed positioner, 4-auto-lock dog device, 4.1-dog, 4.2-stand pipe, 5-heliostat.

Detailed Description

In order to better understand the technical solutions of the present application, the present utility model will be further described in detail below with reference to the drawings and the embodiments.

The terms of upper, lower, left, right, front, rear, and the like in the present application are established based on the positional relationship shown in the drawings. The drawings are different, and the corresponding positional relationship may be changed, so that the scope of protection cannot be understood.

In the present utility model, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, and may be, for example, fixedly connected or detachably connected, integrally connected or mechanically connected, electrically connected or communicable with each other, directly connected or indirectly connected through an intermediate medium, or communicated between two components, or an interaction relationship between two components. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The embodiment describes a simple device for cleaning heliostats, which has small water consumption and adopts a water pressure technology, and is particularly suitable for cleaning work of tower-type solar power stations established in dry, dusty and water resource deficient areas such as deserts and plateaus.

As shown in fig. 1, the device comprises a cleaning device 1, a driving guiding device 2, a fixed positioning device 3 and a self-locking stop block device 4. The two ends of the cleaning device 1 are respectively connected with the driving guide devices 2, the cleaning device is arranged above the mirror surface of the heliostat 5, the two driving guide devices 2 are respectively arranged at two sides of the truss of the heliostat 5 through the fixing and positioning device 3, and the cleaning device 1 moves back and forth along the guide rail 2.1 through the driving guide devices 2 under the action of water flow to clean the mirror surface of the heliostat 5. The two ends of the guide rail 2.1 are respectively provided with a stop block 4.1 of the self-locking stop block device 4, and the driving guide device 2 is limited to prevent the cleaning device 1 from separating from the heliostat 5.

The cleaning device 1 comprises a brush 1.1, a cleaning pipe 1.2, a rotary spray head 1.3, a regulating valve 1.4, a water pump 1.5 and a waterwheel 1.6, wherein a plurality of brushes 1.1 are sequentially arranged below the cleaning pipe 1.2 side by side, the brush 1.1 is hung below the cleaning pipe 1.2 through a central shaft, the end part of the central shaft is connected with an impeller, the impeller is arranged in the cleaning pipe 1.2, and when the impeller rotates, the brush 1.1 is driven to rotate together. The plurality of rotary sprayers 1.3 are distributed in two rows on both sides of the interior of the cleaning tube 1.2 (the two sides refer to the front and rear sides of the moving direction of the cleaning device 1). The two ends of the cleaning pipe 1.2 are respectively connected with the regulating valves 1.4 through water pipes, the two regulating valves 1.4 are connected with the output port of the water pump 1.5 through three-way pipe fittings, the input port of the water pump 1.5 is connected with the waterwheel 1.6 through water pipes, the direction of water flow in the cleaning pipe 1.2 can be regulated through the opening and closing of the two regulating valves 1.4, and the water quantity can be regulated through regulating the opening of the regulating valves 1.4. When the water pump 1.5 is started to inject water into the cleaning pipe 1.2, the rotary spray head 1.3 carries out rotary spraying on the heliostat 5, and the impeller drives the brush 1.1 to rotate under the impact of water flow and water pressure so as to clean the mirror surface of the heliostat 5. The cleaning device 1 is driven by the spray rotation power to move along the heliostat 5. The cleaning device 1 of the embodiment can change the pressure and the direction of water by controlling the flow and the flow direction of the water, thereby controlling the movement direction and the speed of the cleaning device 1 and achieving the purpose of stable driving.

The rotary sprayer 1.3 of this embodiment can also be used with other existing sprayers, such as a lawn water automatic watering sprayer device. Preferably, the rotary spray head 1.3 and the mirror surface of the heliostat 5 are arranged at an angle of 45 degrees, so that an optimal spray angle can be achieved, the spray homogenization can be ensured, and the maximum spray efficiency can be achieved by using the double-row rotary spray head 1.3 for spray. The cleaning pipe 1.2 of this embodiment is a split square pipe structure, so that the brush 1.1 and the rotary spray head 1.3 can be conveniently installed.

The two driving guide devices 2 are respectively arranged on two opposite sides of the truss of the heliostat 5, and the length direction of the driving guide devices 2.1 is perpendicular to the axial direction of the cleaning device 1. The drive guide 2 comprises a guide rail 2.1, a hub 2.2, a bracket 2.3 and a cross beam 2.4. The two ends of the cleaning tube 1.2 of the cleaning device 1 are respectively provided with a support 2.3, one hub 2.2 is arranged at the center of the bottom end of the support 2.3 or two hubs 2.2 are symmetrically arranged at the bottom end of the support 2.3, and the hubs 2.2 are arranged in the guide grooves of the guide rail 2.1 and can move along the guide grooves. Two ends of the guide rail 2.1 are respectively connected with one end of the cross beam 2.4, and the other end of the cross beam 2.4 is fixedly positioned with the truss of the heliostat 5 through the fixing and positioning device 3.

Or in another embodiment, the driving guide device 2 comprises a sliding block, a guide shaft, a bracket 2.3 and a cross beam 2.4, and the structure of the driving guide device 2 is different from that of the driving guide device 2 in that the sliding block is arranged at the bottom end of the bracket 2.3 and slides along the guide shaft through the sliding block, and two ends of the guide shaft are respectively connected with the cross beam 2.4.

In addition, the driving guide device 2 can be provided with a driving mechanism for assisting in completing the movement of the cleaning device 1 when the water flow power is insufficient. The driving mechanism can be a motor, an air cylinder and the like, the motor can be connected with the support 2.3 through an output shaft in a threaded manner, the rotation of the motor is converted into linear movement of the support 2.3 through threaded connection, the air cylinder can be connected with the support 2.3 through a telescopic shaft, and the cleaning device 1 is driven to reciprocate through telescopic movement of the telescopic shaft.

The fixed positioning device 3 adopts a modularized building block type connection mode and comprises a connecting block and a fixing block, one end of the connecting block is connected with a cross beam 2.4 of the driving guide device 2, the other end of the connecting block is used for taking the angle of the truss as a fixed reference, the connecting block can be clamped at the angle position of the truss, and the fixing block is used for fixing the connecting block and the truss through mortise-tenon connection. The fixing and positioning device 3 of the embodiment uses the angle of the truss as a fixing reference, which is convenient for the installation and fixation between the fixing and positioning device 3 and the truss, simplifies the structure of the fixing and positioning device 3 and can ensure the guiding precision of the driving and guiding device 2.

The self-locking stop block device 4 comprises stop blocks 4.1 and guide pipes 4.2, the two stop blocks 4.1 are respectively arranged at two ends of a guide rail 2.1 of the driving guide device 2, the top ends of the two stop blocks 4.1 are connected through the guide pipes 4.2, and a support 2.3 of the driving guide device 2 is sleeved on the guide pipe 4.2, so that the wheel hub 2.2 can be effectively prevented from being separated from a guide groove. Limit displacement sensors can be respectively arranged on the two stop blocks 4.1, the limit displacement sensors are connected with a control module of the device, and the control module can timely adjust the water flow direction or drive the moving direction of the guide device 2 according to signals of the limit displacement sensors, namely drive the cleaning device 1 to move reversely.

After the simple equipment is installed, the water pump 1.5 is started, the water quantity is regulated to the required water quantity through the regulating valve 1.4, the cleaning device 1 starts to spray the heliostat 5 under the driving of water pressure and water flow, the brush 1.1 rotates to clean the mirror surface of the heliostat 5, and meanwhile under the spraying effect, the cleaning device 1 moves along the guide rail 2.1 in a guiding manner through the driving guide device 2. When the cleaning device 1 moves to the end part of the heliostat 5, the control module changes the water flow direction by controlling the opening and closing of the two regulating valves 1.4 so as to change the spraying rotation direction, thereby driving the cleaning device 1 to reciprocate and cleaning the heliostat 5 so as to clean the heliostat 5 and maximize reflected sunlight.

In this embodiment, the control module and the limit displacement sensor may be omitted, and when the cleaning device 1 is manually observed to move to the end of the heliostat 5, the adjusting valve 1.4 is manually adjusted, so as to save cleaning cost to the greatest extent.

While the principles of the utility model have been described in detail in connection with the preferred embodiments thereof, it should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the implementations of the utility model and are not intended to limit the scope of the utility model. The details of the embodiments are not to be taken as limiting the scope of the utility model, and any obvious modifications based on equivalent changes, simple substitutions, etc. of the technical solution of the utility model fall within the scope of the utility model without departing from the spirit and scope of the utility model.

Claims

1. A simple apparatus for cleaning heliostats, characterized in that it comprises a cleaning device (1), a drive guide device (2) and a fixed positioning device (3);

the two ends of the cleaning device (1) are respectively connected with the two driving guide devices (2), the cleaning device (1) is arranged above the mirror surface of the heliostat (5) and can move along the guide rails (2.1) of the driving guide devices (2), and the two guide rails (2.1) are respectively arranged at two sides of the truss of the heliostat (5) through the fixed positioning devices (3);

the cleaning device (1) comprises a hairbrush (1.1), a cleaning pipe (1.2) and a rotary spray head (1.3); the plurality of hairbrushes (1.1) are hung below the cleaning pipe (1.2) side by side through a central shaft, and impellers are arranged on the central shaft in the cleaning pipe (1.2); the plurality of rotary spray heads (1.3) are arranged on one side of the interior of the cleaning pipe (1.2) side by side; two ends of the cleaning pipe (1.2) are respectively connected with the water delivery device.

2. A simplified apparatus for cleaning heliostats according to claim 1, characterized in that it further comprises self-locking stop means (4); the self-locking stop block device (4) comprises stop blocks (4.1), and the two stop blocks (4.1) are respectively arranged at two ends of the guide rail (2.1).

3. The simple and easy apparatus for cleaning heliostats according to claim 2, wherein the self-locking block device (4) further comprises a guide tube (4.2), the top ends of the two blocks (4.1) are connected by the guide tube (4.2), and the driving guide device (2) is sleeved on the guide tube (4.2).

4. The simple and easy apparatus for cleaning heliostats according to claim 2, further comprising a limit displacement sensor and a control module, wherein the two limit displacement sensors are respectively disposed at both ends of the guide rail (2.1) and are respectively connected with the control module data, and the control module changes the water flow direction in the cleaning pipe (1.2) according to the trigger signal of the limit displacement sensor.

5. The simple apparatus for cleaning heliostats according to claim 1, characterized in that a plurality of said rotary sprayers (1.3) are distributed in two rows on both sides inside said cleaning tube (1.2).

6. The simple apparatus for cleaning heliostats according to claim 1 or 5, characterized in that the rotating spray head (1.3) is at an angle of 45 ° with respect to the heliostat (5).

7. The simple apparatus for cleaning heliostats according to claim 1, wherein the water delivery device comprises a regulating valve (1.4), a water pump (1.5) and a waterwheel (1.6); the cleaning device is characterized in that two ends of the cleaning pipe (1.2) are respectively connected with the regulating valves (1.4) through water pipes, the two regulating valves (1.4) are connected with the output port of the water pump (1.5) through pipelines, and the input port of the water pump (1.5) is connected with the water truck (1.6).

8. The simple apparatus for cleaning heliostats according to claim 1, characterized in that said drive guide (2) comprises a rail (2.1), a hub (2.2), a bracket (2.3) and a crossbeam (2.4); the two ends of the cleaning pipe (1.2) are respectively provided with the brackets (2.3), the wheel hubs (2.2) are arranged at the bottom ends of the brackets (2.3), and the wheel hubs (2.2) are arranged in the guide grooves of the guide rails (2.1) and can move along the guide grooves; two ends of the guide rail (2.1) are respectively connected with the fixed positioning device (3) through the cross beam (2.4).

9. The simple apparatus for cleaning heliostats according to claim 8, wherein the length direction of the guide rail (2.1) is perpendicular to the axial direction of the cleaning device (1).

10. The simple and easy apparatus for cleaning heliostats according to claim 1, characterized in that said fixed positioning means (3) comprise a connection block and a fixed block; one end of the connecting block is connected with the driving guide device (2), and the other end of the connecting block is fixed with the truss through the fixing block by taking the angle of the truss as a fixed reference.