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CN-122015295-A - Roof flat plate type solar heat collecting plate

CN122015295ACN 122015295 ACN122015295 ACN 122015295ACN-122015295-A

Abstract

The invention relates to the technical field of solar heat collecting plates, in particular to a roof flat plate type solar heat collecting plate which comprises an outer frame, a heat absorbing plate embedded in the outer frame, first toughened glass and second toughened glass, wherein the first toughened glass is arranged on the back surface of the heat absorbing plate, the second toughened glass is arranged on the heat absorbing surface of the heat absorbing plate, a plurality of third toughened glass which are arranged at equal intervals are arranged on the top of the second toughened glass, a maintaining space is arranged among the plurality of third toughened glass, an isolation transverse frame is fixedly arranged in the maintaining space of the second toughened glass, an assembly cavity is formed in the isolation transverse frame, and a slit is formed in the inner top of the assembly cavity.

Inventors

  • TU QISHENG
  • LIN NANQIAN
  • CHEN GUOTAI

Assignees

  • 福建技术师范学院

Dates

Publication Date
20260512
Application Date
20260226

Claims (9)

  1. 1. A roofing flat-plate solar heat collecting plate is characterized by comprising: The heat absorption device comprises an outer frame (1), a heat absorption plate (2), first toughened glass (4) and second toughened glass (6) which are embedded in the outer frame, wherein the first toughened glass (4) is arranged on the back surface of the heat absorption plate (2), and the second toughened glass (6) is arranged on the heat absorption surface of the heat absorption plate (2); a plurality of third toughened glass (7) which are equidistantly arranged are arranged at the top of the second toughened glass (6), a maintenance space is reserved among the third toughened glass (7), an isolation transverse frame (8) is fixedly arranged in the maintenance space of the second toughened glass (6), an assembly cavity (12) is formed in the isolation transverse frame (8), a slit is formed in the inner top of the assembly cavity (12), a cold-sensitive driver is arranged in the assembly cavity (12), and a functional jacking component (11) capable of penetrating out of the slit is arranged in the assembly cavity (12); The cold-sensitive driver can control the function jacking part (11) to penetrate out of the slit under the preset low-temperature environment.
  2. 2. The flat roof solar panel according to claim 1, wherein the cold-sensitive driver comprises an assembly seat (13) fixedly installed inside the assembly cavity (12), the assembly seat (13) is provided with two side seats, a bimetallic strip (14) is installed between the two side seats in a limiting mode, the bimetallic strip (14) comprises a pre-pressed and shaped passive layer and an active layer which are arranged in an upper layer and a lower layer, the expansion coefficient of the active layer is larger than that of the passive layer, the bimetallic strip (14) can be pre-pressed to a state with a concave center at a high temperature, the bimetallic strip (14) can suddenly jump instantly to be raised to the center after a preset cold transition temperature is met, and the concave center area of the bimetallic strip (14) is in contact with the bottom of the functional jacking component (11).
  3. 3. The flat roof solar heat collecting plate according to claim 2, wherein the assembling seat (13) further comprises a top layer, a guide channel is formed in the top layer, a linkage column (15) is slidably mounted in the guide channel, the bottom end of the linkage column (15) is abutted to the central concave area of the bimetallic strip (14), and the bottom of the functional jacking component (11) is fixedly connected with the top of the linkage column (15).
  4. 4. The roof flat-plate solar heat collecting plate according to claim 2, wherein the top of the functional jacking component (11) is provided with a plurality of pointed saw teeth, the pointed saw teeth are positioned in the slit, the inner wall of the slit is provided with a rubber partition strip (9) tightly attached to the functional jacking component (11) and the pointed saw teeth, and the rubber partition strip (9) and the functional jacking component (11) jointly seal the slit.
  5. 5. The roofing flat-plate solar panel according to claim 2, wherein the active layer is CuZn36 and is arranged on the lower layer, the passive layer is FeNi36 and is arranged on the upper layer, and the bimetallic strip (14) is forced to be pressed into a pre-stable state with a concave center and fixed in an outer ring limiting mode under the condition of being higher than the working temperature of 60-80 ℃.
  6. 6. The flat roof solar heat collecting plate according to claim 4, wherein the thicknesses of the third toughened glass (7) are sequentially increased in equal quantity according to the arrangement sequence, and a stepped state is formed, and when the outer frame (1) and the heat absorbing plate (2) are obliquely arranged and installed, the thickness of the third toughened glass (7) positioned at a high position is larger than that of the third toughened glass (7) positioned at a low position.
  7. 7. The roofing flat-plate solar panel according to claim 6, wherein the surfaces of the plurality of third tempered glass (7) are designed with periodic and micron-sized directional micro-grooves, and the directional micro-grooves are parallel to the oblique direction of the heat absorbing plate (2).
  8. 8. The flat roof solar heat collecting plate according to any one of claims 1 to 7, wherein the frame of the outer frame (1) is designed to be narrow, the thickness of the outer frame (1) in the direction of the heat absorbing surface of the heat absorbing plate (2) is lower than that of the third toughened glass (7), the isolation transverse frame (8) further comprises isolation vertical frames (16) which are enclosed outside the plurality of third toughened glass (7) and are tightly attached, and the isolation vertical frames (16) and the isolation transverse frame (8) are integrally formed and form an assembly frame.
  9. 9. The roof flat-plate solar heat collecting plate according to claim 8, wherein an insulating layer (5) is filled between the circumferential periphery of the heat absorbing plate (2) and the inner frame wall of the outer frame (1), a rotary channel is arranged in the heat absorbing plate (2), the head end and the tail end of the rotary channel penetrate through the outer wall of the heat absorbing plate (2), a working medium pipeline (3) is arranged in the rotary channel, and the head end and the tail end of the working medium pipeline (3) are associated with external working medium heat exchange equipment.

Description

Roof flat plate type solar heat collecting plate Technical Field The invention relates to the technical field of solar heat collecting plates, in particular to a roof flat plate type solar heat collecting plate. Background The solar heat collecting plate is one kind of light-heat converting equipment for building heat supply, and its core components include heat absorbing plate, transparent cover plate, heat insulating layer and casing, and is installed onto building roof in certain inclination angle to collect solar energy effectively. However, in high latitude or severe cold areas, frequent snowfall and accumulation thereof in winter bring serious challenges to the system, snow is continuously covered on the surface of the heat collecting plate, so that not only is the system efficiency returned to zero due to light isolation, but also the huge static load and wind load of the system are more likely to exceed design limits, and the heat collecting plate is deformed, the support is damaged and even the roof structure is hidden danger. The problem is particularly urgent to solve, although there are modes such as electric heating snow melting or manual cleaning, the former has energy consumption greatly contrary to the original purpose of energy conservation, and the latter has low efficiency and safety risk, so that a passive snow removing scheme which is efficient, reliable and free from extra energy is needed in the industry, and the snow is removed before the snow load is accumulated to a dangerous degree, thereby ensuring the long-term stable operation of the system in a severe environment. Disclosure of Invention The invention provides a roof flat plate type solar heat collecting plate, which realizes passive low-temperature triggering ice breaking through the cooperation of a bimetallic strip driver and a functional jacking component, efficiently clears load by cooperatively breaking a snow structure through sharp teeth and step glass, optimizes snow removing paths and heat collecting efficiency by combining narrow frame and micro-groove designs, and remarkably improves the safety and energy benefit of the heat collecting plate in a severe cold and snowy environment. In order to achieve the above object, the present invention provides the following technical solutions: A roofing flat-panel solar collector panel comprising: The heat absorbing device comprises an outer frame, a heat absorbing plate, first toughened glass and second toughened glass, wherein the heat absorbing plate, the first toughened glass and the second toughened glass are embedded in the outer frame, the first toughened glass is arranged on the back surface of the heat absorbing plate, the second toughened glass is arranged on the heat absorbing surface of the heat absorbing plate, a plurality of third toughened glass which are arranged at equal intervals are arranged on the top of the second toughened glass, a maintaining space is reserved among the plurality of third toughened glass, an isolation transverse frame is fixedly arranged in the second toughened glass maintaining space, an assembling cavity is formed in the isolation transverse frame, a slit is formed in the inner top of the assembling cavity, a cold-sensitive driver is arranged in the assembling cavity, a functional jacking part capable of penetrating out of the slit is arranged in the assembling cavity, and the cold-sensitive driver can control the functional jacking part to penetrate out of the slit in a preset low-temperature environment. Optionally, the cold-sensitive driver includes the assembly seat of fixed mounting at the assembly intracavity portion, the assembly seat has two side seats, two spacing install the bimetallic strip between the side seat, the bimetallic strip includes upper and lower double-deck pre-compaction design's passive layer and active layer, the coefficient of expansion of active layer is greater than the coefficient of expansion of passive layer, just the bimetallic strip can pre-compaction to the concave state in center under the high temperature, just the bimetallic strip can jump in the twinkling of an eye after meetting the cold transformation temperature of predetermineeing and be the center epirelief, the concave region in center of bimetallic strip is inconsistent with the bottom of function jacking part. Optionally, the assembly seat still has the top layer, offered the guide passageway on the top layer, slidable mounting has the linkage post on the guide passageway, the bottom of linkage post is inconsistent with the central concave region of bimetallic strip, just the bottom of function jacking part and the top fixed connection of linkage post. Optionally, the top design of function jacking part has a plurality of pointed sawtooth, pointed sawtooth part is located the slit, the rubber partition strip that closely laminates with function jacking part and pointed sawtooth is installed to the slit inner wall, rubber partition strip