A single-component silicone sealant for solar photovoltaic modules and a preparation method thereof

Abstract

The application discloses a single-component organic silicon sealant for solar photovoltaic modules and a preparation method thereof, and relates to the technical field of high polymer materials. The single-component organic silicon sealant for solar photovoltaic modules is prepared by mixing 107 silicon oil, reinforcing fillers, a silane coupling agent, a catalyst and a cross-linking agent. The preparation method of the single-component organic silicon sealant for solar photovoltaic modules is realized by a preparation device of the single-component organic silicon sealant for solar photovoltaic modules. The preparation device of the single-component organic silicon sealant for solar photovoltaic modules comprises a reaction kettle. The application can form a continuously shrinking closed space in the reaction kettle, thereby shortening the time required for vacuumizing treatment. Nitrogen can be input into the material from the lower part of the material, thereby effectively improving the heat exchange area of nitrogen and the material, improving the material cooling speed, and thereby obviously improving the preparation efficiency of 107 silicon oil.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high polymer materials, in particular to a single-component organic silicon sealant for solar photovoltaic modules and a preparation method thereof. BACKGROUND

[0002] In the prior art, when sealing a solar photovoltaic module, a single-component moisture-removing type silicon sealant is mainly used as the sealant. However, the type of sealant needs to react with a cross-linking agent with the help of moisture in the air to be cured. Since the speed of penetration of moisture in the air into the silicon sealant is relatively slow, the deep curing time of the single-component moisture-removing type silicon sealant is long, which greatly affects the assembly efficiency of the solar photovoltaic module.

[0003] The patent application CN 102936483A discloses a single-component organic silicon sealant for solar photovoltaic modules and a preparation method thereof. The single-component organic silicon sealant is prepared by mixing 107 silicon oil, reinforcing fillers, a silane coupling agent, a catalyst and a cross-linking agent. In actual preparation, first, 107 silicon oil and the cross-linking agent are mixed as raw materials to prepare 107 end-capped silicon oil, and then the 107 end-capped silicon oil, the reinforcing fillers, the silane coupling agent and the catalyst are mixed as raw materials to prepare the finished product.

[0004] However, the above preparation method still has some shortcomings after being actually applied by the person skilled in the art. More obviously, in the preparation of 107 silicon oil, a large amount of time is consumed for vacuumizing the reaction container, which increases the time cost and leads to a low preparation efficiency of 107 silicon oil.

[0005] In addition, after the reaction container is vacuumized, nitrogen gas needs to be injected into the reaction container as a protective gas to facilitate the cooling of the materials inside the reaction container. However, after the nitrogen gas is injected into the reaction container, it can only exchange heat with the materials by contacting the top surface of the materials to cool the materials. Due to the limitation of the contact area, the cooling speed of the materials is slow, which further affects the preparation efficiency of 107 silicon oil.

[0006] Therefore, it is necessary to invent a single-component organic silicon sealant for solar photovoltaic modules and a preparation method thereof to solve the above problems. SUMMARY

[0007] The present application relates to the technical field of high polymer materials, in particular to a single-component organic silicon sealant for solar photovoltaic modules and a preparation method thereof.

[0008] In order to achieve the above object, the present application provides the following technical scheme: a preparation method of a single-component organic silicon sealant for a solar photovoltaic module, wherein the single-component organic silicon sealant is prepared by mixing 107 silicon oil, reinforcing filler, silane coupling agent, catalyst and cross-linking agent, and the preparation method of the single-component organic silicon sealant for the solar photovoltaic module is realized by a preparation device of the single-component organic silicon sealant for the solar photovoltaic module.

[0009] The preparation device of the single-component organic silicon sealant for the solar photovoltaic module comprises a reaction kettle, the top, the inside and the bottom of the reaction kettle are provided with a driving and nitrogen supply mechanism, the outside of the driving and nitrogen supply mechanism is sequentially provided from bottom to top with a secondary driving mechanism, a lower nitrogen dispersion mechanism, an upper nitrogen dispersion mechanism, a lifting stirring mechanism and a sealing trigger mechanism, and the secondary driving mechanism, the lifting stirring mechanism and the sealing trigger mechanism are all in transmission connection with the driving and nitrogen supply mechanism.

[0010] The driving and nitrogen supply mechanism comprises a driving motor, a driving screw, a nitrogen input pipe and an outer air hole.

[0011] The driving motor is fixedly arranged at the top of the reaction kettle, the driving screw is located in the inside of the reaction kettle and is in transmission connection with the driving motor, the nitrogen input pipe is connected to the bottom end of the driving screw through a rotary joint, and the outer air hole is provided with a plurality of outer air holes which are evenly arranged in the middle part of the outside of the driving screw.

[0012] The secondary driving mechanism comprises a driving plate, a guide rod and a driving sleeve.

[0013] The driving plate is sleeved and arranged at the bottom of the outside of the driving screw and is in threaded connection with the driving screw, the guide rod is provided with two guide rods which are fixedly arranged at the bottom of the driving plate on both sides, the two guide rods are both slidably penetrated through the inner wall of the reaction kettle and extended to the bottom of the reaction kettle, and the driving sleeve is slidably sleeved on the outside of the driving screw and rotatably nested on the top of the driving plate.

[0014] The lower nitrogen dispersion mechanism comprises an annular blocking plate, a first T-shaped sliding rod, a first rotating sleeve, a lower blocking plate, a blocking column, a T-shaped channel, a valve and an inner air hole.

[0015] The annular blocking plate is located below the lower blocking plate and is fixedly connected with the inner wall of the reaction kettle, the first T-shaped sliding rod is vertically and slidingly nested in the driving screw, a gas passage is vertically formed in the first T-shaped sliding rod, the first rotating sleeve is slidingly sleeved on the outside of the driving sleeve and is fixedly connected with the first T-shaped sliding rod, the lower blocking plate is sleeved on the outside of the driving sleeve and is rotatably connected with the first rotating sleeve through a bearing, the plurality of blocking columns, T-shaped channels, valves and inner air holes are provided, the plurality of blocking columns are uniformly fixed on the top of the lower blocking plate, the plurality of T-shaped channels are respectively formed in the plurality of blocking columns, the plurality of valves are respectively fixed on the top openings of the plurality of T-shaped channels, and the plurality of inner air holes are uniformly formed on the top of the first T-shaped sliding rod.

[0016] Preferably, the upper nitrogen dispersion mechanism comprises an upper blocking plate, a magnet, a dispersion chamber and a dispersion passage.

[0017] Preferably, the upper blocking plate is slidingly sleeved on the outside of the driving screw and is fixedly connected with the driving sleeve, a plurality of accommodating grooves are uniformly and vertically formed on the top of the upper blocking plate, the plurality of blocking columns are vertically and slidingly arranged in the plurality of accommodating grooves, the plurality of magnets are uniformly and fixedly nested on the bottom of the upper blocking plate and the top of the lower blocking plate, the dispersion chamber is formed in the center of the upper blocking plate, the plurality of dispersion passages are provided, and the plurality of avoiding grooves are communicated with the dispersion chamber through the dispersion passages.

[0018] Preferably, the lifting and stirring mechanism comprises a driving guide rail, a sliding sleeve and a stirring rod.

[0019] Preferably, the driving guide rail is provided with two, the two driving guide rails are fixedly arranged on the top of the driving screw, the sliding sleeve is slidingly sleeved on the outside of the driving screw and the two driving guide rails, the stirring rod is provided with a plurality of, and the plurality of stirring rods are uniformly fixed on the outside of the sliding sleeve.

[0020] Preferably, the sealing trigger mechanism comprises a sealing plate, a second rotating sleeve and a second T-shaped sliding rod.

[0021] Preferably, the sealing plate is sleeved on the outside of the driving screw and is threadedly connected with the driving screw, the sealing plate is vertically and slidingly nested in the reaction kettle, the second rotating sleeve is rotatably nested on the top of the sealing plate through a bearing, and the second T-shaped sliding rod is vertically and slidingly nested in the driving screw and is fixedly connected with the second rotating sleeve.

[0022] Preferably, the preparation method comprises the following steps:

[0023] S1, 107 silicone oil and crosslinking agent are added into the reaction kettle, then the driving motor is started, and the driving motor drives the driving screw to rotate, and the driving screw drives the plurality of stirring rods to mix the 107 silicone oil and the crosslinking agent uniformly through the driving guide rail and the sliding sleeve during rotation;

[0024] S2, the driving screw drives the sealing plate to descend and the driving plate to ascend during rotation, the second T-shaped slide rod is driven to descend synchronously through the second rotating sleeve when the sealing plate descends, the driving plate drives the upper sealing plate to ascend synchronously through the driving sleeve when the driving plate ascends, the upper sealing plate drives the material in the reaction kettle to ascend synchronously when the upper sealing plate ascends, the lower sealing plate is driven to ascend synchronously through the magnet when the upper sealing plate ascends, and the first T-shaped slide rod is driven to ascend synchronously through the first rotating sleeve when the lower sealing plate ascends;

[0025] S3, when the driving plate ascends to the first threshold value, the sealing plate seals the upper part of the inner cavity of the reaction kettle, and the upper sealing plate and the lower sealing plate form a closed space in the reaction kettle, and the inside of the reaction kettle is vacuumized at this time, and the driving plate continues to ascend under the driving of the driving screw during vacuumization;

[0026] S4, when the driving plate ascends to the second threshold value, the bottom end of the second T-shaped slide rod contacts the top end of the first T-shaped slide rod, and the second T-shaped slide rod pushes the first T-shaped slide rod as the driving plate continues to ascend, and the first T-shaped slide rod drives the lower sealing plate to descend through the first rotating sleeve, and the lower sealing plate drives the plurality of sealing columns to descend when the lower sealing plate descends;

[0027] S5, when the driving plate ascends to the third threshold value, the driving motor is stopped, the upper sealing plate drives the dispersion chamber sleeve to be connected outside the outer air hole at this time, and the plurality of inner air holes and the plurality of outer air holes are collinear, nitrogen gas input into the driving screw first passes through the plurality of inner air holes and the plurality of outer air holes into the dispersion chamber, and then passes through the plurality of dispersion channels into the plurality of T-shaped channels, and finally breaks through the plurality of valves to enter the material from the bottom, so as to continuously cool the material;

[0028] S6, after cooling, 107 end-capped silicone oil is prepared, the 107 end-capped silicone oil is discharged through the discharge pipe on the right side of the reaction kettle, and the driving screw is reversely rotated by the driving motor after the 107 end-capped silicone oil is discharged, so as to reset the secondary driving mechanism, the lower nitrogen dispersion mechanism, the upper nitrogen dispersion mechanism, the lifting stirring mechanism and the sealing triggering mechanism in sequence;

[0029] S7, the 107 end-capped silicone oil prepared in the above step is mixed with reinforcing fillers, vacuumized and stirred, then silane coupling agent and catalyst are added and vacuumized and stirred continuously, and the product of single-component organic silicone sealant for solar photovoltaic modules is packaged after protection gas is introduced to normal pressure after stirring.

[0030] Technical effects and advantages of the present application:

[0031] The present application is provided with driving and nitrogen supply mechanism, secondary driving mechanism, lower nitrogen dispersion mechanism, upper nitrogen dispersion mechanism, lifting stirring mechanism and sealing trigger mechanism. The driving and nitrogen supply mechanism is used to synchronously drive the lifting stirring mechanism, secondary driving mechanism and sealing trigger mechanism. The lifting stirring mechanism is driven to mix the materials in the reactor. The secondary driving mechanism is driven to push the materials in the reactor upward through the lower nitrogen dispersion mechanism and upper nitrogen dispersion mechanism. The sealing trigger mechanism is driven to descend along the inner cavity of the reactor, seal the upper part of the inner cavity of the reactor, and form a continuously shrinking closed space in the reactor with the lower nitrogen dispersion mechanism and upper nitrogen dispersion mechanism. The sealing trigger mechanism triggers the lower nitrogen dispersion mechanism to input nitrogen into the materials from the lower part to the inside of the materials. Compared with the same type of device or method in the prior art, the present application can form a continuously shrinking closed space in the reactor, shorten the time required for vacuumizing, input nitrogen into the materials from the lower part to the inside of the materials, effectively increase the heat exchange area of nitrogen and materials, increase the cooling speed of materials, and significantly improve the preparation efficiency of 107 silicone oil. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall front view of the present application.

[0033] Figure 2 It is a schematic diagram of the driving and nitrogen supply mechanism and the sealing trigger mechanism of the present application.

[0034] Figure 3 It is a schematic diagram of the driving and nitrogen supply mechanism and the secondary driving mechanism of the present application.

[0035] Figure 4 It is a schematic diagram of the lower nitrogen dispersion mechanism and the upper nitrogen dispersion mechanism of the present application.

[0036] Figure 5 It is a schematic diagram of the driving and nitrogen supply mechanism and the lifting stirring mechanism of the present application.

[0037] Figure 6 It is a schematic diagram of the lifting stirring mechanism of the present application.

[0038] In the figure: 1, reaction kettle; 2, driving and nitrogen supply mechanism; 21, driving motor; 22, driving screw; 23, nitrogen input pipe; 24, outer air hole; 3, secondary driving mechanism; 31, driving plate; 32, guide rod; 33, driving sleeve; 4, lower nitrogen dispersion mechanism; 41, annular blocking plate; 42, first T-shaped slide rod; 43, first rotating sleeve; 44, lower blocking plate; 45, blocking column; 46, T-shaped channel; 47, valve; 48, inner air hole; 5, upper nitrogen dispersion mechanism; 51, upper blocking plate; 52, magnet; 53, dispersion chamber; 54, dispersion channel; 6, lifting stirring mechanism; 61, driving guide rail; 62, sliding sleeve; 63, stirring rod; 7, sealing triggering mechanism; 71, sealing plate; 72, second rotating sleeve; 73, second T-shaped slide rod. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] Embodiment 1

[0041] The present application provides a preparation method of a single-component organic silicon sealant for a solar photovoltaic module as shown in Figure 1 The single-component organic silicon sealant for a solar photovoltaic module is prepared by mixing 107 silicone oil, reinforcing filler, silane coupling agent, catalyst and crosslinking agent, and the preparation method of the single-component organic silicon sealant for a solar photovoltaic module is realized by a preparation device of the single-component organic silicon sealant for a solar photovoltaic module.

[0042] As shown in Figure 1 The preparation device of the single-component organic silicon sealant for a solar photovoltaic module includes a reaction kettle 1, the top, inside and bottom of the reaction kettle 1 are collectively provided with a driving and nitrogen supply mechanism 2, the outer side of the driving and nitrogen supply mechanism 2 is sequentially provided from bottom to top with a secondary driving mechanism 3, a lower nitrogen dispersion mechanism 4, an upper nitrogen dispersion mechanism 5, a lifting stirring mechanism 6 and a sealing triggering mechanism 7, and the secondary driving mechanism 3, the lifting stirring mechanism 6 and the sealing triggering mechanism 7 are all in transmission connection with the driving and nitrogen supply mechanism 2.

[0043] As shown in Figure 2 , Figure 3 , and Figure 6As shown, the driving and nitrogen supply mechanism 2 includes a drive motor 21, a drive screw 22, a nitrogen input pipe 23, and an external gas port 24. The drive motor 21 is fixedly installed on the top of the reactor 1. The drive screw 22 is located inside the reactor 1 and is connected to the drive motor 21 for transmission. The nitrogen input pipe 23 is connected to the bottom end of the drive screw 22 through a rotary joint. Multiple external gas ports 24 are provided, and the multiple external gas ports 24 are evenly opened on the middle of the outer side of the drive screw 22.

[0044] By setting up the above structure, the drive motor 21 can drive the drive screw 22 to rotate after starting, and the nitrogen input pipe 23 can continuously input nitrogen into the drive screw 22. The nitrogen can then be output through the external air hole 24.

[0045] like Figure 3 As shown, the secondary drive mechanism 3 includes a drive plate 31, a guide rod 32, and a drive sleeve 33. The drive plate 31 is sleeved on the bottom of the outer side of the drive screw 22 and threadedly connected to the drive screw 22. There are two guide rods 32, which are respectively fixed on both sides of the bottom of the drive plate 31. Both guide rods 32 slide through the inner wall of the reactor 1 and extend to the bottom of the reactor 1. The drive sleeve 33 is slidably sleeved on the outer side of the drive screw 22 and rotatably nested on the top of the drive plate 31.

[0046] By setting the above structure, the drive screw 22 can drive the drive plate 31 to rise continuously when it rotates, and the drive plate 31 can drive the drive sleeve 33 to rise synchronously when it rises.

[0047] like Figure 3 and Figure 4 As shown, the lower nitrogen dispersion mechanism 4 includes an annular baffle plate 41, a first T-shaped slide bar 42, a first rotating sleeve 43, a lower sealing plate 44, a sealing column 45, a T-shaped channel 46, a valve 47, and an inner gas hole 48. The annular baffle plate 41 is located below the lower sealing plate 44 and is fixedly connected to the inner wall of the reactor 1. The first T-shaped slide bar 42 is slidably nested inside the drive screw 22 in the vertical direction, and a gas channel is formed inside the first T-shaped slide bar 42 in the vertical direction. The first rotating sleeve 43 is slidably sleeved on the outside of the drive sleeve 33 and is connected to the lower sealing plate 44, a sealing column 45, a T-shaped channel 46, a valve 47, and an inner gas hole 48. A T-shaped sliding rod 42 is fixedly connected. The lower sealing plate 44 is sleeved on the outside of the driving sleeve 33 and rotatably connected to the first rotating sleeve 43 through a bearing. Multiple sealing posts 45, T-shaped channels 46, valves 47 and internal air holes 48 are provided. Multiple sealing posts 45 are evenly fixedly arranged on the top of the lower sealing plate 44. Multiple T-shaped channels 46 are respectively opened inside the multiple sealing posts 45. Multiple valves 47 are respectively fixedly arranged on the inside of the top opening of the multiple T-shaped channels 46. Multiple internal air holes 48 are evenly opened on the top of the outside of the first T-shaped sliding rod 42.

[0048] As Figure 3 With Figure 4 As shown, the upper nitrogen dispersion mechanism 5 includes an upper blocking plate 51, a magnet 52, a dispersion chamber 53, and a dispersion channel 54, wherein the upper blocking plate 51 is slidingly sleeved outside the drive screw 22 and fixedly connected with the drive sleeve 33, a plurality of accommodating grooves are uniformly provided on the top of the upper blocking plate 51, a plurality of blocking columns 45 are slidingly arranged inside the accommodating grooves in the vertical direction, respectively, a plurality of magnets 52 are provided, and the plurality of magnets 52 are uniformly fixedly nested on the bottom of the upper blocking plate 51 and the top of the lower blocking plate 44, the dispersion chamber 53 is opened at the center inside the upper blocking plate 51, and a plurality of dispersion channels 54b are provided, and the plurality of avoidance grooves are in communication with the dispersion chamber 53 through the dispersion channels 54.

[0049] By setting the above-mentioned lower nitrogen dispersion mechanism 4 and the upper nitrogen dispersion mechanism 5, when the driving plate 31 rises, the upper blocking plate 51 is driven to rise synchronously, when the upper blocking plate 51 rises, the material inside the reaction kettle 1 is pushed to rise synchronously, when the upper blocking plate 51 rises, the lower blocking plate 44 is driven to rise synchronously by the magnet 52, when the lower blocking plate 44 rises, the first T-shaped sliding rod 42 is driven to rise synchronously by the first rotating sleeve 43, and then, with the continuous rising of the driving plate 31, the first T-shaped sliding rod 42 is pushed downward, after the first T-shaped sliding rod 42 is pushed, the lower blocking plate 44 is driven to descend by the first rotating sleeve 43, and when the lower blocking plate 44 descends, the plurality of blocking columns 45 are driven to descend, when the upper blocking plate 51 drives the dispersion chamber 53 to be sleeved outside the outer air hole 24, and at the same time, the plurality of inner air holes 48 are collinear with the plurality of outer air holes 24, the nitrogen input pipe 23 inputs the nitrogen inside the drive screw 22, which enters the dispersion chamber 53 inside through the plurality of inner air holes 48 and the plurality of outer air holes 24 in turn, then enters the plurality of T-shaped channels 46 inside through the plurality of dispersion channels 54, and finally breaks through the plurality of valves 47 to enter the material inside from below, thereby continuously cooling the material.

[0050] As Figure 5 With Figure 6 As shown, the lifting and stirring mechanism 6 includes a driving guide rail 61, a sliding sleeve 62, and a stirring rod 63, wherein the driving guide rail 61 is provided with two, the two driving guide rails 61 are fixedly arranged on the top of both sides of the drive screw 22, the sliding sleeve 62 is slidingly sleeved outside the drive screw 22 and the two driving guide rails 61, and the stirring rod 63 is provided with a plurality of, and the plurality of stirring rods 63 are uniformly fixedly arranged outside the sliding sleeve 62.

[0051] By setting the above structure, the 107 silicone oil and the crosslinking agent are uniformly mixed by the plurality of stirring rods 63 driven by the driving guide rail 61 and the sliding sleeve 62 during rotation of the driving screw 22, and when the sliding sleeve 62 is pushed, the plurality of stirring rods 63 can be continuously moved upward along the driving guide rail 61, thereby not affecting the uniform mixing of the material during upward movement.

[0052] As shown in Figure 2 The sealing trigger mechanism 7 includes a sealing plate 71, a second rotating sleeve 72, and a second T-shaped slide rod 73. The sealing plate 71 is sleeved on the outside of the driving screw 22 and is threadedly connected with the driving screw 22. The sealing plate 71 is slidingly nested in the reaction kettle 1 in the vertical direction. The second rotating sleeve 72 is rotatingly nested on the top of the sealing plate 71 through a bearing. The second T-shaped slide rod 73 is slidingly nested in the driving screw 22 in the vertical direction and is fixedly connected with the second rotating sleeve 72.

[0053] By setting the above structure, the 107 silicone oil and the crosslinking agent are uniformly mixed by the plurality of stirring rods 63 driven by the driving guide rail 61 and the sliding sleeve 62 during rotation of the driving screw 22, and when the sliding sleeve 62 is pushed, the plurality of stirring rods 63 can be continuously moved upward along the driving guide rail 61, thereby not affecting the uniform mixing of the material during upward movement.

[0054] Embodiment 2

[0055] The preparation method specifically includes the following steps:

[0056] S1, the 107 silicone oil and the crosslinking agent are added into the reaction kettle 1, and then the driving motor 21 is started to drive the driving screw 22 to rotate. During rotation of the driving screw 22, the plurality of stirring rods 63 are driven by the driving guide rail 61 and the sliding sleeve 62 to uniformly mix the 107 silicone oil and the crosslinking agent;

[0057] S2, the sealing plate 71 is lowered and the driving plate 31 is raised during rotation of the driving screw 22. The second T-shaped slide rod 73 is lowered synchronously by the second rotating sleeve 72 when the sealing plate 71 is lowered. The upper sealing plate 51 is raised synchronously by the driving sleeve 33 when the driving plate 31 is raised. The material in the reaction kettle 1 is pushed upward synchronously when the upper sealing plate 51 is raised. The lower sealing plate 44 is raised synchronously by the magnet 52 when the upper sealing plate 51 is raised. The first T-shaped slide rod 42 is raised synchronously by the first rotating sleeve 43 when the lower sealing plate 44 is raised.

[0058] S3, when the driving plate 31 reaches the first threshold, the sealing plate 71 seals the upper part of the inner cavity of the reaction kettle 1, cooperates with the upper sealing plate 51 and the lower sealing plate 44 to form a closed space in the reaction kettle 1, and then the inside of the reaction kettle 1 is vacuumized, and in the process of vacuumizing, the driving plate 31 continues to rise under the driving of the driving screw 22;

[0059] S4, when the driving plate 31 reaches the second threshold, the bottom end of the second T-shaped slide rod 73 contacts the top end of the first T-shaped slide rod 42, and then the first T-shaped slide rod 42 is pushed by the second T-shaped slide rod 73 as the driving plate 31 continues to rise, and the lower sealing plate 44 is lowered by the first rotating sleeve 43, and the lower sealing plate 44 drives the plurality of sealing columns 45 to descend as it descends;

[0060] S5, when the driving plate 31 reaches the third threshold, the driving motor 21 is stopped, at this time the upper sealing plate 51 drives the dispersion chamber 53 to be sleeved outside the outer air hole 24, and the plurality of inner air holes 48 are collinear with the plurality of outer air holes 24, the nitrogen gas input pipe 23 inputs nitrogen gas into the inside of the driving screw 22, and the nitrogen gas successively passes through the plurality of inner air holes 48 and the plurality of outer air holes 24 into the inside of the dispersion chamber 53, and then enters the plurality of T-shaped channels 46 through the plurality of dispersion channels 54, and finally breaks the plurality of valves 47 to enter the inside of the material from the bottom, thereby continuously cooling the material;

[0061] S6, after the cooling is completed, the 107 end-capped silicone oil is prepared, the 107 end-capped silicone oil is discharged through the discharge pipe on the right side of the middle of the reaction kettle 1, and after the 107 end-capped silicone oil is discharged, the driving motor 21 drives the driving screw 22 to rotate reversely, thereby the secondary driving mechanism 3, the lower nitrogen dispersion mechanism 4, the upper nitrogen dispersion mechanism 5, the lifting stirring mechanism 6 and the sealing triggering mechanism 7 are reset in sequence;

[0062] S7, the 107 end-capped silicone oil prepared in the above steps is mixed with the reinforcing filler, vacuumized and stirred, then the silane coupling agent and the catalyst are added, and vacuumized and stirred continuously, and after the stirring is completed, the protective gas is introduced to the normal pressure and then packaged, thereby the single-component silicone sealant product for solar photovoltaic modules is prepared.

[0063] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application shall be included in the protection scope of the present application.

Claims

1. A method for preparing a one-component silicone sealant for solar photovoltaic modules, the one-component silicone sealant for solar photovoltaic modules being prepared by mixing 107 silicone oil, reinforcing filler, silane coupling agent, catalyst and crosslinking agent, characterized in that: The preparation method of the solar photovoltaic module single-component organic silicon sealant is realized by a preparation equipment of the solar photovoltaic module single-component organic silicon sealant. ​ The preparation equipment of the solar photovoltaic module single-component organic silicon sealant comprises a reaction kettle (1), a driving and nitrogen supply mechanism (2) arranged at the top, inside and bottom of the reaction kettle (1), a secondary driving mechanism (3), a lower nitrogen dispersion mechanism (4), an upper nitrogen dispersion mechanism (5), a lifting stirring mechanism (6) and a sealing triggering mechanism (7) arranged in sequence from bottom to top outside the driving and nitrogen supply mechanism (2), and the secondary driving mechanism (3), the lifting stirring mechanism (6) and the sealing triggering mechanism (7) are in transmission connection with the driving and nitrogen supply mechanism (2). The driving and nitrogen supply mechanism (2) comprises a driving motor (21), a driving screw (22), a nitrogen input pipe (23) and a plurality of outer air holes (24). The driving motor (21) is fixedly arranged at the top of the reaction kettle (1), the driving screw (22) is arranged in the reaction kettle (1) and in transmission connection with the driving motor (21), the nitrogen input pipe (23) is connected to the bottom end of the driving screw (22) through a rotary joint, and the plurality of outer air holes (24) are evenly arranged in the middle part outside the driving screw (22). The secondary driving mechanism (3) comprises a driving plate (31), a guide rod (32) and a driving sleeve (33). The driving plate (31) is sleeved and arranged at the bottom outside the driving screw (22) and in threaded connection with the driving screw (22), the two guide rods (32) are fixedly arranged at the bottom of the driving plate (31) on both sides, the two guide rods (32) are slidably penetrated through the inner wall of the reaction kettle (1) and extended to the bottom of the reaction kettle (1), and the driving sleeve (33) is slidably sleeved on the outside of the driving screw (22) and rotatably nested on the top of the driving plate (31). The lower nitrogen dispersion mechanism (4) comprises an annular blocking plate (41), a first T-shaped sliding rod (42), a first rotating sleeve (43), a lower blocking plate (44), a blocking column (45), a T-shaped channel (46), a valve (47) and an inner air hole (48). The annular blocking plate (41) is located below the lower blocking plate (44) and is fixedly connected with the inner wall of the reaction kettle (1), the first T-shaped sliding rod (42) is vertically slidingly nested in the driving screw (22), a gas passage is vertically formed in the first T-shaped sliding rod (42), the first rotating sleeve (43) is slidingly sleeved on the outside of the driving sleeve (33) and is fixedly connected with the first T-shaped sliding rod (42), the lower blocking plate (44) is sleeved on the outside of the driving sleeve (33) and is rotatably connected with the first rotating sleeve (43) through a bearing, a plurality of blocking columns (45), T-shaped channels (46), valves (47) and inner air holes (48) are arranged, the plurality of blocking columns (45) are uniformly fixedly arranged on the top of the lower blocking plate (44), the plurality of T-shaped channels (46) are respectively formed in the plurality of blocking columns (45), the plurality of valves (47) are respectively fixedly arranged on the inside of the top opening of the plurality of T-shaped channels (46), and the plurality of inner air holes (48) are uniformly formed on the top of the outside of the first T-shaped sliding rod (42).

2. The preparation method of the one-component silicone sealant for solar photovoltaic modules according to claim 1, characterized in that: The upper nitrogen dispersion mechanism (5) comprises an upper blocking plate (51), a magnet (52), a dispersion chamber (53) and a dispersion channel (54).

3. The preparation method of the single-component silicone sealant for solar photovoltaic modules according to claim 2, characterized in that: The upper blocking plate (51) is slidingly sleeved on the outside of the driving screw (22) and is fixedly connected with the driving sleeve (33), a plurality of containing grooves are uniformly formed in the top of the upper blocking plate (51), a plurality of blocking columns (45) are respectively vertically slidingly arranged in the plurality of containing grooves, a plurality of magnets (52) are arranged, the plurality of magnets (52) are uniformly fixedly nested on the bottom of the upper blocking plate (51) and on the top of the lower blocking plate (44), the dispersion chamber (53) is formed in the center of the inside of the upper blocking plate (51), and a plurality of dispersion channels (54) are arranged.

4. The preparation method of the one-component silicone sealant for solar photovoltaic modules according to claim 3, characterized in that: The lifting stirring mechanism (6) comprises a driving guide rail (61), a sliding sleeve (62) and a stirring rod (63).

5. The preparation method of the one-component silicone sealant for solar photovoltaic modules according to claim 4, characterized in that: The driving guide rail (61) is provided with two driving guide rails (61) which are fixedly arranged on the top of both sides of the driving screw (22), the sliding sleeve (62) is slidingly sleeved on the outside of the driving screw (22) and the two driving guide rails (61), and the stirring rod (63) is provided with a plurality of stirring rods (63) which are uniformly fixedly arranged on the outside of the sliding sleeve (62).

6. The preparation method of the one-component silicone sealant for solar photovoltaic modules according to claim 5, characterized in that: The sealing trigger mechanism (7) comprises a sealing plate (71), a second rotating sleeve (72) and a second T-shaped sliding rod (73).

7. The method according to claim 6, wherein the method comprises the following steps: (1) mixing the components (A) and (B) to obtain a mixture; (2) adding the component (C) into the mixture obtained in step (1) to obtain a single-component silicone sealant for solar photovoltaic modules. The sealing plate (71) is sleeved on the outside of the driving screw (22) and is threadedly connected with the driving screw (22), the sealing plate (71) is vertically slidingly nested in the inside of the reaction kettle (1), the second rotating sleeve (72) is rotatably nested on the top of the sealing plate (71) through a bearing, and the second T-shaped sliding rod (73) is vertically slidingly nested in the inside of the driving screw (22) and is fixedly connected with the second rotating sleeve (72).

8. The method according to claim 7, wherein the method comprises the following steps: (1) mixing the components (A) and (B) to obtain a mixture; (2) adding the components (C) and (D) into the mixture obtained in step (1) to obtain a single-component silicone sealant for solar photovoltaic modules. The preparation method specifically comprises the following steps: S1, the 107 silicone oil and the crosslinking agent are added into the reaction kettle (1), then the driving motor (21) is started, the driving motor (21) drives the driving screw (22) to rotate, and the driving screw (22) drives the plurality of stirring rods (63) to mix the 107 silicone oil and the crosslinking agent uniformly through the driving guide rail (61) and the sliding sleeve (62) during rotation; S2, the sealing plate (71) is driven to descend and the driving plate (31) is driven to ascend during the rotation of the driving screw (22), the second T-shaped sliding rod (73) is driven to descend synchronously through the second rotating sleeve (72) when the sealing plate (71) descends, the upper sealing plate (51) is driven to ascend synchronously through the driving sleeve (33) when the driving plate (31) ascends, the material in the reaction kettle (1) is pushed to ascend synchronously when the upper sealing plate (51) ascends, the lower sealing plate (44) is driven to ascend synchronously through the magnet (52) when the upper sealing plate (51) ascends, and the first T-shaped sliding rod (42) is driven to ascend synchronously through the first rotating sleeve (43) when the lower sealing plate (44) ascends; S3, when the ascending distance of the driving plate (31) reaches the first threshold value, the sealing plate (71) blocks the upper part of the inner cavity of the reaction kettle (1), cooperates with the upper sealing plate (51) and the lower sealing plate (44), so that a closed space is formed in the reaction kettle (1), at this time, the inside of the reaction kettle (1) is vacuumized, and the driving plate (31) continues to ascend under the driving of the driving screw (22) during the vacuumizing process; S4, when the ascending distance of the driving plate (31) reaches the second threshold value, the bottom end of the second T-shaped sliding rod (73) contacts the top end of the first T-shaped sliding rod (42), and the second T-shaped sliding rod (73) pushes the first T-shaped sliding rod (42) with the continuous ascending of the driving plate (31), the lower sealing plate (44) is driven to descend through the first rotating sleeve (43) after the first T-shaped sliding rod (42) is pushed, and a plurality of sealing columns (45) are driven to descend when the lower sealing plate (44) descends; S5, when the ascending distance of the driving plate (31) reaches the third threshold value, the driving motor (21) is stopped at this time, at this time, the upper sealing plate (51) sleeves the dispersion chamber (53) outside the outer air hole (24), meanwhile, a plurality of inner air holes (48) and a plurality of outer air holes (24) are collinear, nitrogen input into the inside of the driving screw (22) passes through a plurality of inner air holes (48) and a plurality of outer air holes (24) into the inside of the dispersion chamber (53) in sequence through the nitrogen input pipe (23), then enters into a plurality of T-shaped channels (46) through a plurality of dispersion channels (54), and finally pushes open a plurality of valves (47) to enter into the material from below, so that the material is continuously cooled. S6, after the cooling is completed, 107 end-capped silicone oil is prepared, the 107 end-capped silicone oil is discharged through the discharge pipe at the right middle part of the reaction kettle (1), after the 107 end-capped silicone oil is discharged, the driving motor (21) drives the driving screw (22) to rotate reversely, and then the secondary driving mechanism (3), the lower nitrogen gas dispersion mechanism (4), the upper nitrogen gas dispersion mechanism (5), the lifting stirring mechanism (6) and the sealing triggering mechanism (7) are reset in sequence; S7, the 107 end-capped silicone oil prepared in the above step is mixed with reinforcing fillers, vacuum stirring is carried out, then a silane coupling agent and a catalyst are added, vacuum stirring is continuously carried out, after the stirring is completed, protective gas is introduced to normal pressure, and then packaging is carried out, a single-component organic silicone sealant product for solar photovoltaic modules is prepared.

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