Node connecting structure of refrigeration house roof and photovoltaic stand column

Abstract

The utility model discloses a node connecting structure of a refrigeration house roof and a photovoltaic stand column, which comprises a heat insulation fixing unit used for fixing the photovoltaic stand column and a waterproof unit arranged on the heat insulation fixing unit, and the heat insulation fixing unit comprises a mounting groove formed in the refrigeration house roof, a column foot fixed on the bottom wall of the mounting groove and a heat insulation block. The lower part of the photovoltaic stand column is fixed on the column foot; the groove wall and the bottom wall of the mounting groove are both coated with first waterproof coatings, and the upper portion of the heat insulation block extends upwards to the position above the roof and is connected with the roof. The installation grooves are dug in the roof of the refrigeration house and filled with the heat insulation blocks, the photovoltaic stand columns are wrapped with the heat insulation blocks, the heat bridge effect can be effectively avoided, and the influence of a photovoltaic system on the refrigeration house is reduced as much as possible; first waterproof coatings are arranged in the mounting grooves, and waterproof units are further arranged on the heat insulation blocks and the roof, so that the waterproof performance of the joints can be effectively guaranteed, and water leakage of the refrigeration house is avoided; as the stand columns are buried in the refrigeration house roof, waterproof parts on the refrigeration house roof can be replaced conveniently.

Description

Technical Field

[0001] The utility model relates to the installation of a photovoltaic bracket on a cold storage roof, in particular to a node connection structure between a cold storage roof and a photovoltaic column. Background Art

[0002] Logistics cold storage is usually located in a relatively open area, making it a high-quality resource for rooftop distributed solar photovoltaic systems. Installing a solar photovoltaic system on the roof of a cold storage not only makes full use of roof resources, but also enables the company to use green electricity, save energy and reduce emissions. For cold storage, in order to ensure the waterproof performance of the cold storage, the roof waterproofing needs to be replaced every certain period. This requires that the installation of the roof solar system cannot affect the replacement of the roof waterproofing, and the waterproof performance of the installation node must be guaranteed; in addition, the existing photovoltaic brackets are generally built with steel. The existing practice of directly installing photovoltaic columns on the roof of the cold storage has a thermal bridge effect, that is, the heat of the photovoltaic bracket is transferred to the inside of the cold storage through the concrete, resulting in condensation water in the cold storage, which in turn causes frost in the cold storage. Therefore, it is crucial to design a photovoltaic bracket and roof connection structure that can not only ensure waterproof performance and facilitate the replacement of cold storage roof waterproofing, but also avoid the thermal bridge effect. Summary of the invention

[0003] In view of this, the utility model provides a node connection structure between a cold storage roof and a photovoltaic column.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The node connection structure between the cold storage roof and the photovoltaic column described in the utility model comprises a heat-insulating fixing unit for fixing the photovoltaic column and a waterproof unit arranged on the heat-insulating fixing unit, the heat-insulating fixing unit comprises a mounting groove opened on the cold storage roof and a column foot fixed on the bottom wall of the mounting groove, the lower part of the photovoltaic column is fixed on the column foot; the groove wall and the bottom wall of the mounting groove are both coated with a first waterproof coating, the heat-insulating fixing unit also comprises a heat-insulating block arranged in the mounting groove, the upper part of the heat-insulating block extends upward to the top of the roof and is connected to the roof, the upper part of the heat-insulating block is a conical part, and the waterproof unit is laid on the conical part and the roof near the bottom of the conical part. The beneficial effect is that the utility model excavates the mounting groove on the roof of the cold storage and fills the heat-insulating block, on the basis of realizing the installation of the photovoltaic column (the photovoltaic column is a steel structure column, such as a steel column or a steel pipe) on the roof, the heat-insulating block is wrapped on the photovoltaic column, which can effectively avoid the generation of a thermal bridge effect and minimize the impact of the photovoltaic system on the cold storage. The utility model has a first waterproof coating in the installation groove and a waterproof unit on the insulation block and the roof, which can effectively ensure the waterproof performance at the node and avoid water leakage in the cold storage; and because the column is buried in the roof of the cold storage, it is convenient to replace the waterproof on the roof of the cold storage.

[0006] Preferably, the steel plate of the column foot is fixed to the bottom wall of the mounting groove by chemical bolts.

[0007] Preferably, the waterproof unit includes a first waterproof layer with a thickness of 3 mm to 6 mm, the first waterproof layer has a first waterproof portion laid on the tapered portion, a second waterproof portion extending vertically upward from the first waterproof portion, and a third waterproof portion horizontally arranged at the bottom edge of the first waterproof portion, the second waterproof portion is coated on the photovoltaic column, and the third waterproof portion is horizontally laid on the roof. Beneficial effect: The first waterproof layer of the utility model is laid on the tapered portion, the column and the roof, effectively ensuring the waterproof performance of the connection.

[0008] More preferably, the waterproof unit also includes a second waterproof layer with a thickness of 3mm to 6mm, the structure of the second waterproof layer is the same as that of the first waterproof layer, and the second waterproof layer is arranged on the first waterproof layer to further ensure the waterproof performance at the connection node and avoid water leakage.

[0009] Preferably, the first waterproof layer and the second waterproof layer are both made of SBS waterproof membrane.

[0010] Preferably, the waterproof unit further comprises a second waterproof coating disposed on the roof and the tapered portion, and a width of a horizontal portion of the second waterproof coating is greater than a width of the first waterproof portion.

[0011] Preferably, the insulation block is a foam concrete block, which can be cast on site, and the construction is simple and convenient.

[0012] Compared with the prior art, the utility model has the following advantages: the utility model digs an installation groove on the roof of the cold storage and fills it with insulation blocks. On the basis of installing photovoltaic columns (photovoltaic columns are steel structure columns, such as steel columns or steel pipes, etc.) on the roof, the insulation blocks are wrapped on the photovoltaic columns, which can effectively avoid the thermal bridge effect and minimize the impact of the photovoltaic system on the cold storage. The utility model has a first waterproof coating in the installation groove and a waterproof unit on the insulation block and the roof, which can effectively ensure the waterproof performance at the node and avoid water leakage in the cold storage; and because the columns are buried in the roof of the cold storage, it is convenient to replace the waterproof on the roof of the cold storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0014] The following is a detailed description of an embodiment of the utility model in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0015] It should be noted that, in the description of the present utility model, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0016] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0017] Combination Figure 1 It can be known that the node connection structure between the cold storage roof and the photovoltaic column described in the utility model includes a heat-insulating fixing unit for fixing the photovoltaic column 3 and a waterproof unit arranged on the heat-insulating fixing unit. The heat-insulating fixing unit includes a mounting groove opened on the cold storage roof 1 and a column foot 2 fixed on the bottom wall of the mounting groove. The lower part of the photovoltaic column 3 is fixed on the column foot 2. The photovoltaic column 3 and the column foot 2 can be welded together or connected in a sleeve type. The steel plate of the column foot 2 is fixed to the reinforced concrete floor 5 of the cold storage by chemical bolts 4. The mounting holes on the steel plate are long holes for easy installation. The groove wall and the bottom wall of the mounting groove are coated with a first waterproof coating 6 to ensure the waterproof performance of the mounting groove. The heat-insulating fixing unit also includes a heat-insulating block 7 arranged in the mounting groove. The heat-insulating block 7 is preferably a foam concrete block with heat-insulating performance, and the construction is simple and convenient. Since the insulation block 7 wraps the column foot 2 and the lower part of the photovoltaic column 3, it has a good insulation effect, thereby avoiding the thermal bridge effect and further avoiding condensation in the cold storage; the upper part of the insulation block 7 extends upward to the top of the roof. The upper part of the insulation block 7 is a conical part, and the bottom edge of the conical part is connected to the roof. The waterproof unit is laid on the conical part and the roof near the bottom of the conical part. The waterproof unit includes a second waterproof coating 8 applied on the conical part and the roof near the conical part. The thickness of the second waterproof coating 8 is about 1.5 mm, so that it overlaps with the existing waterproof coating on the roof up and down to ensure the waterproof effect.

[0018] Combination Figure 1It can be seen that the waterproof unit also includes a first waterproof layer 9 (using SBS waterproof membrane) with a thickness of 3mm to 6mm. The first waterproof layer 9 has a first waterproof portion laid on the conical portion, a second waterproof portion extending vertically upward from the first waterproof portion, and a third waterproof portion horizontally arranged at the bottom edge of the first waterproof portion. The second waterproof portion is coated on the photovoltaic column 3, and the third waterproof portion is horizontally laid on the roof, effectively ensuring the waterproof effect at the node; the waterproof unit also includes a second waterproof layer 10 (using SBS waterproof membrane) with a thickness of 3mm to 6mm. The structure of the second waterproof layer 10 is the same as that of the first waterproof layer 9, and the second waterproof layer 10 is laid on the first waterproof layer 9, further ensuring the waterproof performance at the connection node to avoid water leakage;

[0019] The upper parts of the first waterproof layer 9 and the second waterproof layer 10 are fixed on the photovoltaic column 3 through metal hoops, and the top of the waterproof unit and the photovoltaic column 3 are sealed with sealant.

[0020] The construction process of the utility model is as follows: excavate the installation groove on the roof, clean the installation groove, and pour a layer of concrete at the bottom of the groove for leveling; then install the column foot 2, and fix the column foot 2 on the bottom wall of the installation groove (the column foot 2 and the photovoltaic column 3 can be an integrated structure or can be bolted and fixed);

[0021] Clean the installation groove again, and apply a first waterproof coating 6 with a thickness of 1.5 mm on the groove wall and bottom wall of the installation groove, and then backfill and pour foam concrete into the installation groove, so that the part above the roof is a conical structure, the height of the part above the roof is more than 30 mm and the slope is about 5%, and the bottom edge of the conical part is flush with the roof;

[0022] A second waterproof coating 8 with a thickness of 1.5 mm is applied on the conical portion, the roof near the conical portion and the photovoltaic column 3 near the conical portion, and then a first waterproof layer 9 and a second waterproof layer 10 are constructed. The upper parts of the first waterproof layer 9 and the second waterproof layer 10 are fixedly connected to the photovoltaic column 3 through metal hoops, and sealant is applied on the tops of the first waterproof layer 9 and the second waterproof layer 10 to ensure the sealing and waterproof performance of the connection.

[0023] The utility model digs an installation groove on the roof of the cold storage and fills it with an insulation block 7. The insulation block 7 is wrapped on the photovoltaic column 3, which can effectively avoid the thermal bridge effect and reduce the impact on the cold storage. The installation groove has a first waterproof coating 6 and the insulation block 7 and the roof also have a waterproof unit, which can effectively ensure the waterproof performance at the node and avoid water leakage in the cold storage. And because the column is buried in the cold storage roof 1, it is convenient to replace the waterproof on the cold storage roof 1.

[0024] Finally, it should be emphasized that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A node connection structure between a cold storage roof and a photovoltaic column, characterized in that: The node connection structure includes a heat-insulating fixing unit for fixing the photovoltaic column and a waterproof unit arranged on the heat-insulating fixing unit. The heat-insulating fixing unit includes a mounting groove opened on the roof of the cold storage and a column foot fixed on the bottom wall of the mounting groove, and the lower part of the photovoltaic column is fixed on the column foot; the groove wall and the bottom wall of the mounting groove are coated with a first waterproof coating, and the heat-insulating fixing unit also includes a heat-insulating block arranged in the mounting groove, the upper part of the heat-insulating block extends upward to above the roof and is connected to the roof, the upper part of the heat-insulating block is a conical part, and the waterproof unit is laid on the conical part and the roof near the bottom of the conical part.

2. The node connection structure between the cold storage roof and the photovoltaic column according to claim 1 is characterized in that: The steel plate of the column foot is fixed to the bottom wall of the installation groove by chemical bolts.

3. The node connection structure between the cold storage roof and the photovoltaic column according to claim 1 is characterized in that: The waterproof unit includes a first waterproof layer with a thickness of 3mm to 6mm, the first waterproof layer has a first waterproof portion laid on the conical portion, a second waterproof portion extending vertically upward from the first waterproof portion, and a third waterproof portion horizontally arranged at the bottom edge of the first waterproof portion, the second waterproof portion is wrapped on the photovoltaic column, and the third waterproof portion is horizontally laid on the roof.

4. The node connection structure between the cold storage roof and the photovoltaic column according to claim 3 is characterized in that: The waterproof unit further includes a second waterproof layer with a thickness of 3 mm to 6 mm. The structure of the second waterproof layer is the same as that of the first waterproof layer, and the second waterproof layer is arranged on the first waterproof layer.

5. The node connection structure between the cold storage roof and the photovoltaic column according to claim 4 is characterized in that: The first waterproof layer and the second waterproof layer are both made of SBS waterproof membrane.

6. The node connection structure between the cold storage roof and the photovoltaic column according to claim 3 is characterized in that: The waterproof unit further includes a second waterproof coating layer provided on the roof and the tapered portion, wherein a width of a horizontal portion of the second waterproof coating layer is greater than a width of the first waterproof portion.

7. The node connection structure between the cold storage roof and the photovoltaic column according to claim 1 is characterized in that: The heat insulation blocks are foam concrete blocks.

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