Photovoltaic installation method for exposed polymer waterproof membrane concrete roof

Abstract

The present invention discloses a photovoltaic installation method for an exposed polymer waterproofing membrane concrete roof, comprising the following steps: 1) drilling; 2) installing expansion screws; 3) installing a first prefabricated part; 4) installing a second prefabricated part; 5) installing a photovoltaic bracket; 6) installing a photovoltaic panel. The present invention can install photovoltaic modules on a concrete roof with an exposed polymer waterproofing membrane, and does not require prefabricated concrete piers on the roof for fixing the photovoltaic bracket, which can reduce the roof load; and the photovoltaic installation method of the present invention has low cost, convenient construction, can shorten the construction period, and is more conducive to the promotion and application of roof photovoltaics.

Description

Technical Field

[0001] The invention relates to a photovoltaic installation method for an exposed polymer waterproof coiled material concrete roof. Background Art

[0002] Most countries are developing and using new energy sources. Of course, the development of electricity is the first to be affected. Photovoltaic converts solar energy into electrical energy. It is an inexhaustible renewable energy source and does not produce other harmful gases or solid wastes during the conversion process. Photovoltaic solar panels can be installed in deserts and oceans. Of course, the color steel roofs and concrete roofs of some factories are also suitable installation places. They have large areas and few roof equipment. In this way, power generation can not only be self-sufficient, but also the excess electricity can be sold.

[0003] Since the full life cycle of photovoltaics is 25 years, the waterproof material of the roof is crucial to the entire roof, especially the exposed polymer waterproof membrane on the concrete roof, which is not only convenient for later maintenance, but also the white surface reflection of the polymer membrane is more conducive to the power generation of double-glass photovoltaic panels. However, the support of the photovoltaic panel bracket on this kind of concrete roof is generally made of prefabricated concrete piers, and then the embedded parts are pre-embedded on the concrete piers to fix the photovoltaic bracket base. This prefabricated concrete pier not only increases the self-weight of the roof and causes uneven force on the roof, but also has a high cost and a long construction period. Summary of the invention

[0004] The object of the present invention is to provide a photovoltaic installation method for an exposed polymer waterproof membrane concrete roof, comprising the following steps:

[0005] 1) Punching:

[0006] On the completed concrete roof with exposed polymer waterproofing membrane, holes are punched according to the design requirements of the photovoltaic panels to form installation holes for installing expansion screws;

[0007] 2) Install expansion screws:

[0008] Put an expansion screw into the installation hole and allow the expansion screw to expand and fix in the installation hole;

[0009] 3) Install the first prefab:

[0010] Take a first prefabricated part, which includes: a round nut, a hexagonal nut integrally spliced ​​with one axial end of the round nut, and a waterproof skirt integrally formed on the side circumference of the round nut; the waterproof skirt is made of a polymer waterproof material;

[0011] Tighten the round nut of the first prefabricated part downward onto the fixed expansion screw (with the hexagonal nut facing upward), so that the waterproof skirt of the first prefabricated part is laid on the exposed polymer waterproof membrane of the concrete roof, and the waterproof skirt is welded and fixed to the exposed polymer waterproof membrane. The welding is waterproof and reliable, and the waterproof skirt forms a sealed connection with the exposed polymer waterproof membrane;

[0012] 4) Install the second prefab:

[0013] Take a second prefabricated component, which includes: a flange with a hexagonal hole on the front, and a screw connected to the center of the back of the flange; the flange is also provided with a strip bolt hole for installing the photovoltaic bracket;

[0014] Align the screw of the second prefabricated part downward with the screw hole of the hexagonal nut on the first prefabricated part (with the front of the flange facing upward), insert the hexagonal wrench into the hexagonal hole on the front of the flange of the second prefabricated part, and turn the hexagonal wrench to tighten the screw of the second prefabricated part into the hexagonal nut of the first prefabricated part;

[0015] 5) Install the photovoltaic bracket:

[0016] The photovoltaic bracket is fastened to the flange of the second prefabricated component by passing bolts through the strip-shaped bolt holes of the flange on the second prefabricated component;

[0017] 6) Installing photovoltaic panels:

[0018] Fix the photovoltaic panel on the photovoltaic bracket.

[0019] Preferably, in step 1), an electric drill is used to drill holes according to the size of the expansion screws.

[0020] Preferably, the expansion screw comprises: a bolt with a big head at the tail, a nut threadedly connected to the bolt, and a spring washer, a flat washer and a steel sleeve sleeved on the bolt and located between the nut and the big head of the bolt; the steel sleeve is located between the flat washer and the big head of the bolt, and the steel sleeve has a plurality of cuts on one end facing the big head of the bolt.

[0021] Preferably, in step 2), an expansion screw is placed in the mounting hole with the big end of the bolt facing downward; then the nut of the expansion screw is tightened, and the big end of the bolt is pulled into the sleeve, so that the sleeve expands and fills the mounting hole, and the expansion screw is fixed in the mounting hole.

[0022] Preferably, the hexagonal nut and the round nut of the first preform are coaxial.

[0023] Preferably, the waterproof skirt of the first prefabricated component is circular, and the waterproof skirt is coaxial with the round nut.

[0024] Preferably, the central portion (the portion close to the round nut) of the waterproof skirt of the first prefabricated component is thickened so that the thickness of the central portion of the waterproof skirt is consistent with the thickness of the round nut.

[0025] Preferably, in step 3), a hot air gun is used to weld and fix the waterproof skirt to the exposed polymer waterproof membrane.

[0026] Preferably, the length of the screw of the second prefabricated component is consistent with the depth of the screw hole of the hexagonal nut on the first prefabricated component.

[0027] Preferably, in step 5), the fixing position of the photovoltaic bracket is fine-tuned along the strip bolt holes on the flange according to the design requirements of the photovoltaic panel.

[0028] The advantages and beneficial effects of the present invention are: providing a photovoltaic installation method for an exposed polymer waterproof membrane concrete roof, which can install photovoltaic components on a concrete roof with an exposed polymer waterproof membrane, and does not require prefabricated concrete piers on the roof for fixing photovoltaic brackets, thereby reducing the roof load; and the photovoltaic installation method of the present invention has low cost and convenient construction, which can shorten the construction period and is more conducive to the promotion and application of roof photovoltaics. DETAILED DESCRIPTION

[0029] The specific implementation of the present invention is further described below in conjunction with the examples. The following examples are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0030] The technical solutions specifically implemented in the present invention are as follows:

[0031] A photovoltaic installation method for an exposed polymer waterproof roll concrete roof, characterized by comprising the following steps:

[0032] 1) Punching:

[0033] On the completed concrete roof with exposed polymer waterproofing membrane, according to the design requirements of the photovoltaic panels, use an electric drill to drill holes according to the size of the expansion screws to form installation holes for installing expansion screws;

[0034] 2) Install expansion screws:

[0035] Take an expansion screw, which includes: a bolt with a big head at the tail, a nut threadedly connected to the bolt, and a spring washer, a flat washer and a steel sleeve sleeved on the bolt and located between the nut and the big head of the bolt; the steel sleeve is located between the flat washer and the big head of the bolt, and the steel sleeve has a plurality of cuts on one end facing the big head of the bolt;

[0036] Put the expansion screw into the installation hole with the big head of the bolt facing downward; then tighten the nut of the expansion screw, pull the big head of the bolt into the sleeve, so that the sleeve expands and fills the installation hole, so that the expansion screw is fixed in the installation hole;

[0037] 3) Install the first prefab:

[0038] Take a first prefabricated component, which includes: a round nut, a hexagonal nut integrally spliced ​​with one axial end of the round nut, and a waterproof skirt integrally formed on the side circumference of the round nut; the hexagonal nut and the round nut are coaxial; the waterproof skirt is made of a polymer waterproof material; the waterproof skirt is circular, and the waterproof skirt and the round nut are coaxial; the central part of the waterproof skirt (the part close to the round nut) is thickened so that the thickness of the central part of the waterproof skirt is consistent with the thickness of the round nut;

[0039] Tighten the round nut of the first prefabricated part downward onto the bolt of the fixed expansion screw (with the hexagonal nut facing upward), so that the waterproof skirt of the first prefabricated part is laid on the exposed polymer waterproof membrane of the concrete roof, and the waterproof skirt is welded and fixed to the exposed polymer waterproof membrane with a hot air gun. The welding is waterproof and reliable, and the waterproof skirt forms a sealed connection with the exposed polymer waterproof membrane;

[0040] 4) Install the second prefab:

[0041] Take a second prefabricated part, which includes: a flange with a hexagonal hole on the front, and a screw connected to the center of the back of the flange; the flange is also provided with a strip bolt hole for installing the photovoltaic bracket; the length of the screw of the second prefabricated part is consistent with the depth of the screw hole of the hexagonal nut on the first prefabricated part;

[0042] Align the screw of the second prefabricated part downward with the screw hole of the hexagonal nut on the first prefabricated part (with the front of the flange facing upward), insert the hexagonal wrench into the hexagonal hole on the front of the flange of the second prefabricated part, and turn the hexagonal wrench to tighten the screw of the second prefabricated part into the hexagonal nut of the first prefabricated part;

[0043] 5) Install the photovoltaic bracket:

[0044] The photovoltaic bracket is fastened to the flange of the second prefabricated component by passing bolts through the strip bolt holes of the flange on the second prefabricated component; when fixing the photovoltaic bracket, the fixing position of the photovoltaic bracket is fine-tuned along the strip bolt holes on the flange according to the design requirements of the photovoltaic panel;

[0045] 6) Installing photovoltaic panels:

[0046] Fix the photovoltaic panel on the photovoltaic bracket.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A photovoltaic installation method for an exposed polymer waterproofing membrane concrete roof, characterized in that: The steps include: 1) Punching: Punch holes on the concrete roof with exposed polymer waterproof membrane to form installation holes for installing expansion screws; 2) Install expansion screws: Put an expansion screw into the installation hole and allow the expansion screw to expand and fix in the installation hole; 3) Install the first prefab: Take a first prefabricated part, which includes: a round nut, a hexagonal nut integrally spliced ​​with one axial end of the round nut, and a waterproof skirt integrally formed on the side circumference of the round nut; the waterproof skirt is made of a polymer waterproof material; Tighten the round nut of the first prefabricated part downward onto the fixed expansion screw, so that the waterproof skirt of the first prefabricated part is laid on the exposed polymer waterproof membrane of the concrete roof, and weld the waterproof skirt to the exposed polymer waterproof membrane; 4) Install the second prefab: Take a second prefabricated component, which includes: a flange with a hexagonal hole on the front, and a screw connected to the center of the back of the flange; the flange is also provided with a strip bolt hole for installing the photovoltaic bracket; Align the screw of the second prefabricated part downward with the screw hole of the hexagonal nut on the first prefabricated part, insert the hexagonal wrench into the hexagonal hole on the front side of the flange of the second prefabricated part, and turn the hexagonal wrench to tighten the screw of the second prefabricated part into the hexagonal nut of the first prefabricated part; 5) Install the photovoltaic bracket: The photovoltaic bracket is fastened to the flange of the second prefabricated component by passing bolts through the strip-shaped bolt holes of the flange on the second prefabricated component; 6) Installing photovoltaic panels: Fix the photovoltaic panel on the photovoltaic bracket.

2. The photovoltaic installation method for exposed polymer waterproofing membrane concrete roof according to claim 1 is characterized in that: In step 1), use an electric drill to drill holes according to the size of the expansion screws.

3. The photovoltaic installation method for exposed polymer waterproofing membrane concrete roof according to claim 1 is characterized in that: The expansion screw comprises: a bolt with a big head at the tail, a nut threadedly connected to the bolt, and a spring washer, a flat washer and a steel sleeve sleeved on the bolt and located between the nut and the big head of the bolt; the steel sleeve is located between the flat washer and the big head of the bolt, and a plurality of cuts are opened on one end of the steel sleeve facing the big head of the bolt.

4. The photovoltaic installation method for exposed polymer waterproofing membrane concrete roof according to claim 3 is characterized in that: In step 2), put the expansion screw into the installation hole with the big end of the bolt facing downward; then tighten the nut of the expansion screw, pull the big end of the bolt into the sleeve, so that the sleeve expands and fills the installation hole, and the expansion screw is fixed in the installation hole.

5. The photovoltaic installation method for exposed polymer waterproofing membrane concrete roof according to claim 1 is characterized in that: The hexagonal nut and the round nut of the first preform are coaxial.

6. The photovoltaic installation method for exposed polymer waterproofing membrane concrete roof according to claim 1, characterized in that: The waterproof skirt of the first prefabricated component is circular, and the waterproof skirt is coaxial with the round nut.

7. The photovoltaic installation method for exposed polymer waterproof membrane concrete roof according to claim 6, characterized in that: The central portion of the waterproof skirt of the first prefabricated component is thickened so that the thickness of the central portion of the waterproof skirt is consistent with the thickness of the round nut.

8. The photovoltaic installation method for exposed polymer waterproof membrane concrete roof according to claim 1, characterized in that: In step 3), a hot air gun is used to weld and fix the waterproof skirt to the exposed polymer waterproof membrane.

9. The photovoltaic installation method for exposed polymer waterproofing membrane concrete roof according to claim 1, characterized in that: The length of the screw of the second prefabricated component is consistent with the depth of the screw hole of the hexagonal nut on the first prefabricated component.

10. The photovoltaic installation method for exposed polymer waterproofing membrane concrete roof according to claim 1, characterized in that: In step 5), fine-tune the fixing position of the photovoltaic bracket along the strip bolt holes on the flange.