CN-224230358-U - Fused salt groove type solar thermal power generation heat collector

CN224230358UCN 224230358 UCN224230358 UCN 224230358UCN-224230358-U

Abstract

The utility model relates to the technical field of photoelectric heating, and discloses a fused salt trough type solar thermal power generation heat collector which comprises a light-transmitting protective cover, a heat collecting pipe, a reflection condenser and a tracking rotation system, wherein the light-transmitting protective cover can be used for sunlight to pass through and is provided with a closable cavity, the heat collecting pipe is suspended in the cavity of the light-transmitting protective cover so that the heat collecting pipe does not rotate along with the sun, the heat collecting pipe is connected with a fused salt steel pipeline through a flexible hose, the reflection condenser is rotatably arranged in the cavity of the light-transmitting protective cover, and the rotation tracking system is connected with the reflection condenser and is used for controlling the reflection condenser to rotate along with the angle of the sun so that the reflection condenser focuses on the heat collecting pipe in real time. The solar heat collecting tube has the beneficial effects that the heat collecting tube is arranged in a hanging manner, so that the heat collecting tube does not need to rotate along with the sun, is connected with a molten salt steel pipeline through a flexible hose, does not need a rotary joint, does not have leakage risk and is easy to maintain.

Inventors

MA MINGYANG
LIANG WENFENG
LU BO
HUI CHAO

Assignees

首航节能光热技术股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250425

Claims (10)

1. A molten salt trough type solar thermal power collector, comprising: The light-transmitting protective cover can pass through sunlight and is provided with a closable cavity; The heat collecting pipe is suspended in the cavity of the light-transmitting protective cover so that the heat collecting pipe does not rotate along with the sun, and the heat collecting pipe is connected with the molten salt steel pipeline through a flexible hose; The reflection condenser is rotatably arranged in the cavity of the light-transmitting protective cover; And the tracking rotation system is connected with the reflecting condenser and used for controlling the reflecting condenser to rotate along with the angle of the sun so as to enable the reflecting condenser to focus on the heat collecting tube in real time.
2. The molten salt trough type solar thermal power generation collector of claim 1, wherein the tracking and rotating system comprises a tracking control system and a rotating assembly, the rotating assembly is arranged in a cavity of a light-transmitting protective cover and is positioned below a heat collecting tube, the reflecting condenser is slidably arranged on the rotating assembly, and the tracking control system is respectively connected with the reflecting condenser and the rotating assembly to control the rotating assembly to push the reflecting condenser to rotate along with the angle of the sun so as to enable the reflecting condenser to be focused on the heat collecting tube in real time.
3. The molten salt trough type solar thermal power generation collector of claim 2, wherein the rotating assembly comprises a support frame, a guide rail and a push rod assembly, the guide rail is fixed on the support frame and is positioned below the heat collecting pipe, the reflective condenser is slidably mounted on the guide rail through a sliding bearing, the push rod assembly is fixed on the support frame, and the output end of the push rod assembly is connected with the reflective condenser and used for pushing the reflective condenser to slide along the guide rail.
4. The molten salt trough type solar thermal power collector of claim 3, wherein the push rod assembly comprises two push rods, and the two push rods are respectively positioned at two sides of the central axis of the reflecting condenser.
5. The molten salt trough type solar thermal power generation collector of claim 3, wherein the guide rail is semicircular, and the center of the guide rail is the midpoint of the axis of the collector tube.
6. The molten salt trough type solar thermal power generation collector according to claim 3, wherein the tracking control system comprises an inclinometer and a computer, the inclinometer is mounted on the reflecting condenser, the inclinometer and the push rod assembly are connected with the computer through signals so as to feed back real-time angles of the reflecting condenser to the computer, and the push rod assembly is controlled by a preset algorithm of the computer to push the reflecting condenser to rotate along with the solar angles and focus on the heat collecting tube in real time.
7. The molten salt trough type solar thermal power generation collector of claim 1, wherein the reflective concentrator comprises a supporting structure and a reflective layer, the supporting structure is parabolic, and the reflective layer is distributed on the inner side surface of the supporting structure.
8. The molten salt trough type solar thermal power generation collector of claim 7, wherein the reflecting layer is a reflecting mirror or a silver-plated high polymer reflecting film, and the thickness of the reflecting layer is 1mm.
9. The molten salt trough type solar thermal power generation collector of claim 1, further comprising a flexible steel wire, wherein the heat collecting tube is suspended in the light-transmitting protective cover through the flexible steel wire.
10. The molten salt trough type solar thermal power generation collector of claim 9, wherein the light-transmitting protective cover is made of ultra-white glass.

Description

Fused salt groove type solar thermal power generation heat collector Technical Field The utility model relates to the technical field of photoelectric heating, in particular to a fused salt trough type solar thermal power generation heat collector. Background Concentrating solar thermal power generation is to focus solar energy, collect heat and exchange heat by using a high-temperature medium, and then supply heat or drive a steam turbine to generate power. Because the concentrated solar thermal power generation generally can be configured with heat storage of a high-temperature medium, continuous power generation can be realized, and the photovoltaic power generation has incomparable advantages. But with the significant reduction in cost of photovoltaic power generation. Although concentrating solar thermal power generation has technical advantages, the concentrating solar thermal power generation is limited by the existing technical conditions as an investment project with larger initial investment, and the cost advantages are far behind. The convenient path for reducing cost in concentrating solar thermal power generation is a large-opening molten salt groove type technology, but the heat collecting tube of the traditional molten salt groove type heat collector is arranged on a supporting frame, and synchronously rotates along with the change of the position of the sun along with the supporting frame in the heat collecting process, so that flexible connection is required between the heat collecting tube and a molten salt steel pipeline, and the current flexible connection has a rotating structure of a rotating joint, so that the rotating joint is easy to leak and difficult to maintain. Therefore, the molten salt tank type thermal power generation technology is urgently required to design a heat collector structure capable of avoiding the oil leakage risk of the existing rotary joint. Disclosure of utility model The utility model aims to provide a fused salt trough type solar thermal power generation collector, which aims to solve the problems that in the prior art, the end part of the existing collector tube needs to be connected by a rotary joint, the rotary joint is easy to leak, and the maintenance is difficult. In order to achieve the above purpose, the present utility model provides the following technical solutions: A molten salt trough solar thermal power collector comprising: The light-transmitting protective cover can pass through sunlight and is provided with a closable cavity; The heat collecting pipe is suspended in the cavity of the light-transmitting protective cover so that the heat collecting pipe does not rotate along with the sun, and the heat collecting pipe is connected with the molten salt steel pipeline through a flexible hose; The reflection condenser is rotatably arranged in the cavity of the light-transmitting protective cover; And the tracking rotation system is connected with the reflection condenser and used for controlling the reflection condenser to rotate along with the angle of the sun so as to enable the reflection condenser to focus on the heat collecting tube in real time. Through this setting, the heat-collecting tube adopts the mode installation of suspending in midair, does not have rotary motion in the operation in-process, does not need rotary joint, does not have the risk of leaking, and operation maintenance cost is low. The tracking and rotating system comprises a tracking control system and a rotating assembly, wherein the rotating assembly is arranged in a cavity of the light-transmitting protective cover and is positioned below the heat collecting tube, the reflecting condenser is slidably arranged on the rotating assembly, and the tracking control system is respectively connected with the reflecting condenser and the rotating assembly so as to control the rotating assembly to push the reflecting condenser to rotate along with the angle of the sun, so that the reflecting condenser is focused on the heat collecting tube in real time. Further, the rotating assembly comprises a supporting frame, a guide rail and a push rod assembly, wherein the guide rail is fixed on the supporting frame and is positioned below the heat collecting pipe, the reflecting condenser is slidably arranged on the guide rail through a sliding bearing, the push rod assembly is fixed on the supporting frame, and the output end of the push rod assembly is connected with the reflecting condenser and used for pushing the reflecting condenser to slide along the guide rail. Further, the push rod assembly comprises two push rods, and the two push rods are respectively positioned at two sides of the central axis of the reflecting condenser. By arranging the two push rods, the sliding position of the reflection condenser along the guide rail can be conveniently adjusted, and the stability of the reflection condenser can be effectively improved. Further, the guide rail is semicircular, and the cen