Low-temperature and constant-temperature stress relief device for photovoltaic frame

Abstract

The low-temperature and constant-temperature stress relief device for the photovoltaic frame comprises an upper cover and a box body, a feeding port and a discharging port are formed in the two end faces of the box body, two partition plates are fixed in the box body and divide the box body into a first cavity, a middle cavity and a second cavity in sequence, a water inlet is formed in the lower end of the middle cavity, and a water outlet is formed in the lower end of the second cavity. The lower end of the first cavity and the lower end of the second cavity are provided with water outlets, the upper end of the partition plate is provided with a groove, a photovoltaic frame is inserted into the groove in a penetrating mode, cooling liquid is introduced into the middle cavity, and the cooling liquid overflows into the first cavity and the second cavity from the middle cavity to soak the photovoltaic frame. The photovoltaic frame is inserted into the groove in a penetrating mode, the liquid level of cooling liquid is higher than the partition plate and the photovoltaic frame when the cooling liquid overflows by means of rising of the liquid level, the photovoltaic frame is completely soaked, the photovoltaic frame is evenly heated, and the stress of the profile is released.

Description

Technical Field

[0001] The utility model relates to the technical field of stress relief equipment for non-metallic profiles, in particular to a low-temperature and constant-temperature stress relief device for a photovoltaic frame. Background Art

[0002] In the pultrusion process of glass fiber polyurethane composite materials, it generally includes multiple stages such as glass fiber yarn arrangement, dipping, preforming, extrusion curing, traction, cutting, etc. During the extrusion process, the composite material in the mold is formed under pressure and cured at the same time, so that the profile has a certain strength and stability. During the curing process, because the thermal conductivity of glass fiber and polyurethane is small, the curing inside the profile lags far behind the curing on the surface of the profile. At the same time, the thermal conductivity also causes uneven heating and cooling of the profile, causing internal stress in the product. Therefore, a low-temperature and constant-temperature stress relief device for photovoltaic frames is designed to eliminate the stress of photovoltaic frames. Utility Model Content

[0003] The purpose of the utility model is to provide a low-temperature, constant-temperature stress relief device for a photovoltaic frame. A groove is provided on a partition, and the photovoltaic frame is inserted into the groove. The liquid level of the coolant in the intermediate cavity rises, so that the coolant overflows from the partition into the first cavity and the second cavity. When overflowing, the liquid level of the coolant is higher than the partition and the photovoltaic frame, and the photovoltaic frame is completely immersed, thereby increasing the contact area with the photovoltaic frame, making the photovoltaic frame evenly heated, releasing the stress inside the profile, and avoiding the influence of stress on the profile.

[0004] The utility model provides the following technical solution: a low-temperature, constant-temperature stress relief device for a photovoltaic frame, comprising an upper cover and a box body, wherein both end surfaces of the box body are provided with a feed port and a discharge port, wherein two partitions are fixed in the box body, and the partitions divide the box body into a first cavity, an intermediate cavity and a second cavity in sequence, wherein a water inlet is provided at the lower end of the intermediate cavity, and a water outlet is provided at the lower ends of the first cavity and the second cavity, wherein a groove is provided at the upper end of the partition, and a photovoltaic frame is inserted into the groove, and a cooling liquid is introduced into the intermediate cavity, and the cooling liquid overflows from the intermediate cavity into the first cavity and the second cavity to immerse the photovoltaic frame.

[0005] In order to reduce the gap between the photovoltaic frame and the groove, a sponge is fixed in the groove, a notch is opened at the upper end of the sponge, and the photovoltaic frame is inserted into the notch.

[0006] In order to remove moisture from the surface of the photovoltaic frame, a water blower is fixed on the inner wall of the second cavity, and the central hole of the water blower is aligned with the notch.

[0007] In order to detect and increase the temperature of the coolant, a heater and a temperature sensor are connected to the side wall of the intermediate cavity.

[0008] In order to lower the temperature of the coolant, a water chiller is arranged on one side of the box body, the water inlet is connected to the water chiller, and the two water outlets are also connected to the water chiller through pipes.

[0009] In order to adjust the height of the box body, two ends of the lower surface of the box body are connected with supporting feet, and the sides of the supporting feet are connected with supporting legs.

[0010] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0011] (1) A groove is formed on the partition, and the photovoltaic frame is inserted into the groove. The coolant in the middle cavity rises and overflows from the partition into the first cavity and the second cavity. When overflowing, the coolant level is higher than the partition and the photovoltaic frame, and the photovoltaic frame is completely immersed, thereby increasing the contact area with the photovoltaic frame, making the photovoltaic frame evenly heated, releasing the internal stress of the photovoltaic frame, and reducing the influence of stress on the profile;

[0012] (2) By placing a sponge in the groove, the photovoltaic frame is embedded in the notch of the sponge, making the sponge tight, reducing the gap between the photovoltaic frame and the partition, and further increasing the rising rate of the liquid level. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the connection structure between the box body and the chiller of the utility model;

[0016] Figure 3 It is a schematic diagram of the internal structure of the box of the utility model;

[0017] Figure 4 It is a three-dimensional diagram of the internal structure of the box of the utility model from another perspective;

[0018] In the figure: 1. Box body; 11. Middle cavity; 12. First cavity; 13. Second cavity; 14. Partition; 141. Groove; 15. Sponge; 151. Notch; 16. Water blower; 17. Discharge port; 18. Inlet; 19. Support foot; 2. Upper cover; 3. Support leg; 4. Heater; 5. Water outlet; 6. Water inlet; 7. Temperature sensor; 8. Chiller. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0020] See also Figures 1 to 4 The utility model provides a technical solution: a low-temperature, constant-temperature stress relief device for a photovoltaic frame, comprising an upper cover 2 and a box body 1, a feed inlet 18 and a discharge port 17 are provided on both end surfaces of the box body 1, and the photovoltaic frame moves from the feed inlet 18 to the discharge port 17, two partitions 14 are fixed in the box body 1, and the partitions 14 divide the box body 1 into a first cavity 12, an intermediate cavity 11 and a second cavity 13 in sequence, a water inlet 6 is provided at the lower end of the intermediate cavity 11, a water outlet 5 is provided at the lower end of the first cavity 12 and the second cavity 13, and a water outlet 5 is provided at the upper end of the partition 14. A groove 141 is provided, in which a photovoltaic frame is inserted, and the photovoltaic frame blocks the groove 141. Cooling liquid is introduced into the middle cavity 11, and the cooling liquid is injected into the middle cavity 11, and the liquid level gradually rises. When the cooling liquid overflows into the first cavity 12 and the second cavity 13, the water outlet 5 at the bottom of the first cavity 12 and the second cavity 13 will discharge the cooling liquid. When the cooling liquid in the middle cavity 11 overflows, it will soak the photovoltaic frame, increase the contact area with the photovoltaic frame, make the photovoltaic frame heated evenly, and release the stress in the photovoltaic frame.

[0021] like Figure 3 As shown, a sponge 15 is fixed in the groove 141, and the sponge 15 is always immersed in the coolant. A notch 151 is provided at the upper end of the sponge 15, and the photovoltaic frame is inserted in the notch 151. The sponge 15 will be squeezed under the gravity of the photovoltaic frame to make the sponge 15 tighter. The sponge 15 is used to block the coolant to reduce the overflow of the coolant, so that the liquid level of the coolant is higher than the top surface of the photovoltaic frame, and the photovoltaic frame is completely immersed.

[0022] like Figure 3 and 4 As shown, a water blower 16 is fixed on the inner wall of the second cavity 13 , and the central hole of the water blower 16 is aligned with the recess 151 , so that the photovoltaic frame can be easily extended into the water blower 16 , and the water blower 16 can generate air pressure to dry the moisture on the surface of the photovoltaic frame.

[0023] like Figure 2 and 3As shown, a heater 4 and a temperature sensor 7 are connected to the side wall of the middle cavity 11, and the temperature sensor 7 is used to detect the coolant in the box body 1. A chiller 8 is arranged on one side of the box body 1, and the water inlet 6 is connected to the chiller 8. The two water outlets 5 are also connected to the chiller 8 through pipes. The temperature of the coolant is increased by the heater 4, and the temperature of the coolant is reduced by the chiller 8. The cooperation of the heater 4 and the chiller 8 is used to keep the coolant in a constant temperature state, and the coolant discharged from the water outlet 5 will flow back to the chiller 8 again for cooling. The refluxed liquid is injected into the middle cavity 11 through the chiller 8, so that the coolant is circulated and the cost is reduced.

[0024] like Figure 3 As shown, the two ends of the lower surface of the box body 1 are connected with support feet 19, and the lower ends of the support feet 19 are connected with support legs 3. The support legs 3 are provided with waist holes. Fasteners are passed through the waist holes and the support feet 19 to fix the support legs 3 under the support feet 19, and the height of the support legs 3 can be adjusted through the waist holes, thereby adjusting the height of the box body 1.

[0025] The operation process of the equipment: first, the cooling liquid is passed from the chiller into the middle cavity. As the liquid level rises, the cooling liquid will overflow into the first cavity and the second cavity on both sides. A sponge is fixed on the partition with a notch. The photovoltaic frame enters the first cavity from the feed port and is embedded in the notch, thereby reducing the height of the photovoltaic frame. Then, the photovoltaic frame enters the middle cavity and is soaked in the cooling liquid to increase the contact area with the photovoltaic frame, so that the photovoltaic frame is heated evenly and the stress of the formed photovoltaic frame caused by uneven heating is reduced. Then, the photovoltaic frame enters the second cavity and enters the water blower. The water blower is used to dry the moisture on the surface of the photovoltaic frame and then the material is discharged from the discharge port.

[0026] Finally, it should be noted that the above description 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 above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A low-temperature, constant-temperature stress relief device for a photovoltaic frame, comprising an upper cover and a box, characterized in that: A feed inlet and a discharge outlet are provided on both end surfaces of the box body, two partitions are fixed inside the box body, the partitions divide the box body into a first cavity, a middle cavity and a second cavity in sequence, a water inlet is provided at the lower end of the middle cavity, a water outlet is provided at the lower ends of the first cavity and the second cavity, a groove is provided at the upper end of the partition, a photovoltaic frame is inserted in the groove, cooling liquid is introduced into the middle cavity, the cooling liquid overflows from the middle cavity into the first cavity and the second cavity, and soaks the photovoltaic frame.

2. The low-temperature, constant-temperature stress relief device for photovoltaic frames according to claim 1 is characterized in that: A sponge is fixed in the groove, a notch is opened at the upper end of the sponge, and the photovoltaic frame is inserted into the notch.

3. The low-temperature, constant-temperature stress relief device for photovoltaic frames according to claim 2 is characterized in that: A water blower is fixed on the inner wall of the second cavity, and a central hole of the water blower is aligned with the notch.

4. The low-temperature, constant-temperature stress relief device for photovoltaic frames according to claim 1, characterized in that: A heater and a temperature sensor are connected to the side wall of the intermediate cavity.

5. The low-temperature, constant-temperature stress relief device for photovoltaic frames according to claim 1, characterized in that: A water chiller is arranged on one side of the box body, the water inlet is connected to the water chiller, and the two water outlets are also connected to the water chiller through pipelines.

6. The low-temperature, constant-temperature stress relief device for photovoltaic frames according to claim 1, characterized in that: The two ends of the lower surface of the box body are connected with supporting feet, and the sides of the supporting feet are connected with supporting legs.

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