Pipe explosion water leakage prevention header joint of solar heat collector

Abstract

The utility model relates to the technical field of solar heat collector header joints, and discloses a solar heat collector pipe explosion water leakage prevention header joint which comprises a header and a solar heat collection pipe, a soft joint made of flexible materials is arranged between the header and the solar heat collection pipe, and a supporting piece is arranged on the inner wall of the soft joint. According to the utility model, the joints are made of the silicon rubber material, the soft joints can be tightly attached to the piping interfaces of the header and the outer wall of the all-glass evacuated solar collector tube, so that the link of adding a sealing ring is omitted, meanwhile, the silicon rubber material has super-strong weather resistance, and the temperature resistance range of the silicon rubber is generally between-60 DEG C and 250 DEG C; therefore, compared with a plastic connector, the connector is higher in high-temperature resistance, acid-base resistance and corrosion resistance, the situation that the connector is broken for a long time and even broken once being touched cannot occur, good elasticity, flexibility and weather resistance can be kept in the environment with heavy wind, sun and rain, and the connecting performance and the sealing performance of the connector are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of solar collector header joints, in particular to a solar collector pipe explosion and leakage-proof header joint. Background Art

[0002] A solar thermal collector is a device that converts the sun's radiation energy into heat energy. A solar thermal collector is mainly composed of a header and a full-glass vacuum solar thermal collector tube inserted into the header pipe port. The solar thermal collector needs to be installed outdoors in an open, unshaded area. Due to the large heat loss from metal back-transfer and the high cost, the existing technology usually uses a plastic connector to connect the full-glass vacuum solar thermal collector tube to the header.

[0003] During the operation of the solar collector, the all-glass vacuum solar collector tube is prone to burst. For example, the patent with application publication number CN209355512U discloses a solar collector tube burst and water leakage prevention header. Since sealed tube seats coaxial with each pipe opening are respectively arranged on the left and right side walls of the header body, a second rubber sealing ring is respectively clamped on the inner port of each sealed tube seat, and a sealing float is arranged between the left and right corresponding sealed tube seats. When one of the solar heat-absorbing glass water pipes bursts, the water in the header body has a tendency to flow out of the sealed tube seat corresponding to the burst water pipe. Under the tendency of the water in the header body to flow outward, the sealing float flows to the inner port of the sealed tube seat corresponding to the burst solar heat-absorbing glass water pipe, and blocks the second rubber sealing ring at the inner port of the sealed tube seat, preventing the water in the header from flowing out from the pipe opening corresponding to the burst pipe, thereby saving water resources and preventing damage to the interior and exterior decoration of the building and the personal safety of passers-by.

[0004] However, the plastic material used to make the connector needs to have a certain strength. During the connection, since the piping interface of the header and the exterior of the all-glass vacuum solar collector tube are also made of relatively hard materials, a sealing ring needs to be added to the combination of the two. If there are some deviations in the installation of the sealing ring, it will also lead to poor sealing performance. In addition, the plastic connector will weather due to long-term exposure to wind and sun, which will accelerate the breakage of the molecular "double bonds" inside the plastic, resulting in reduced strength or brittleness of the plastic, or even breakage at the touch. In particular, the connector needs to be in contact with hot water for a long time, which will cause the plastic to deform, thereby affecting its connection performance and sealing. In order to solve the above problems, we propose a solar collector explosion-proof water-leakage header connector. Utility Model Content

[0005] The utility model aims to provide a solar collector explosion-proof header joint to solve the problem that plastic joints are prone to aging due to long-term exposure to wind and sun, which affects their connection performance and sealing.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a solar collector explosion-proof and leak-proof header joint, comprising a header and a solar collector tube, a soft joint made of flexible material is provided between the header and the solar collector tube, and a support is provided on the inner wall of the soft joint.

[0007] According to the above technical solution, an arc-shaped opening is provided on the inner edge of the soft joint close to one end of the manifold, and the arc-shaped opening is communicated with the soft joint.

[0008] According to the above technical solution, the distance between the support member and the arc-shaped opening is 5 mm.

[0009] According to the above technical solution, the soft joint includes a soft sleeve that is plugged into the solar collector tube, the end of the soft sleeve is fixedly connected to a soft plug, and the soft plug is plugged into the piping interface of the header.

[0010] According to the above technical solution, the soft sleeve and the soft insertion tube are integrally formed.

[0011] According to the above technical solution, an annular inner boss abutting against the port of the solar heat collecting tube is formed between the soft sleeve and the soft insert tube.

[0012] According to the above technical solution, an annular outer boss is provided at one end of the soft insertion tube close to the soft sleeve.

[0013] According to the above technical solution, the inner wall of the soft cannula is provided with an annular groove, and the support member is embedded in the annular groove.

[0014] According to the above technical solution, the support member is a stainless steel ring.

[0015] According to the above technical solution, the support member is a plastic ring.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model sets the joint to be made of silicone rubber material, and the soft joint can fit tightly with the piping interface of the junction box and the outer wall of the all-glass vacuum solar collector tube, eliminating the step of adding a sealing ring. At the same time, the silicone rubber material has super weather resistance, it can be used in extreme temperature environments, and has excellent high and low temperature resistance. The temperature resistance range of silicone rubber is usually between -60°C and 250°C, which makes it more resistant to high temperatures than plastic joints. It is also resistant to acids and alkalis, and corrosion. It will not break over time or even break at the touch. It can maintain good elasticity, flexibility and weather resistance in windy, sunny and rainy environments, thereby improving the connection performance and sealing of the joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall front structure of the explosion-proof pipe water leakage header joint of the utility model;

[0019] Figure 2 It is a schematic diagram of the annular inner boss on the side of the soft casing of the utility model;

[0020] Figure 3 It is an overall cross-sectional view of the explosion-proof water-leakage-proof header joint of the utility model;

[0021] Figure 4 It is a schematic diagram of the utility model when the sealing float ball is fitted with the arc-shaped opening;

[0022] In the figure:

[0023] 1. Soft joint; 11. Soft sleeve; 12. Soft insert; 13. Annular inner boss; 14. Annular outer boss; 2. Support member; 3. Arc-shaped opening. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-4 The utility model provides a technical solution for a solar collector explosion-proof header joint: it includes a header and a solar collector tube. The solar collector tube usually uses a full-glass vacuum solar collector tube. A soft joint 1 made of a flexible material is provided between the header and the solar collector tube. The flexible material used to make the soft joint 1 is silicone rubber. By providing the soft joint 1 made of silicone rubber, the silicone rubber material is soft and can fit tightly with the piping interface of the header and the outer wall of the full-glass vacuum solar collector tube, eliminating the need to add a sealing ring.

[0026] At the same time, silicone rubber material has super weather resistance. It can be used in extreme temperature environments, and has excellent high and low temperature resistance. The temperature resistance range of silicone rubber is usually between -60℃ and 250℃, which makes it more resistant to high temperatures than plastic joints. It is also resistant to acids and alkalis, and corrosion. It will not break over time or even break at the touch. It can maintain good elasticity, flexibility and weather resistance in windy, sunny and rainy environments, thereby improving the connection performance and sealing of the joints.

[0027] The inner wall of the flexible joint 1 is provided with a support member 2, which supports the side wall of the flexible joint 1 to prevent the flexible joint 1 from deformation and to prevent the flexible joint 1 from shrinking under the effect of hot and cold temperature differences, thereby affecting the sealing of the flexible joint 1.

[0028] Specifically, an arc-shaped opening 3 is provided on the inner edge of the soft joint 1 near one end of the manifold, the arc-shaped opening 3 is connected to the soft joint 1, and the arc-shaped opening 3 matches the curvature of the outer wall of the sealing float, thereby increasing the sealing effect of the sealing float.

[0029] Specifically, the distance between the support member 2 and the arc-shaped opening 3 is 5 mm. The support member 2 can prevent the arc-shaped opening 3 from being deformed and affecting the fitting effect of the sealing float and the arc-shaped opening 3. At the same time, it can prevent the arc-shaped opening 3 from being stretched open when the sealing float seals the arc-shaped opening 3, and prevent the sealing float from excessively entering the soft joint 1, thereby increasing the friction between the sealing float and the inner wall of the arc-shaped opening 3, affecting the sealing float to release the blockage of the port of the soft joint 1, and playing a limiting role.

[0030] Specifically, the soft joint 1 includes a soft sleeve 11 which is plugged into and matched with the solar thermal collecting tube. When the junction box is connected to the solar thermal collecting tube, the solar thermal collecting tube is inserted into the soft sleeve 11. The end of the soft sleeve 11 is fixedly connected with a soft insert 12. The soft insert 12 is plugged into and matched with the piping interface of the junction box. When the junction box is connected to the solar thermal collecting tube, the soft insert 12 of the soft joint 1 is inserted into the piping interface of the junction box to achieve the connection.

[0031] Specifically, the soft sleeve 11 and the soft insert tube 12 are integrally formed, and the integrally formed arrangement enables the soft joint 1 to withstand higher pressure and a more complex working environment, thereby preventing the problem of poor sealing at the connection.

[0032] Specifically, an annular inner boss 13 abutting against the end of the solar collector tube is formed between the soft sleeve 11 and the soft insertion tube 12. When the solar collector tube is inserted into the soft sleeve 11, the end of the solar collector tube will abut against the annular inner boss 13 to improve the sealing of the device.

[0033] Specifically, an annular outer boss 14 is provided at one end of the soft cannula 12 close to the soft sleeve 11. When the soft cannula 12 is inserted into the piping interface of the manifold, the annular outer boss 14 will press against the side wall of the manifold to further improve the sealing performance of the device.

[0034] Specifically, an annular groove is provided on the inner wall of the soft insert tube 12, and the support member 2 is embedded in the annular groove, which facilitates the installation of the support member 2 and prevents the support member 2 from protruding and obstructing the water flow.

[0035] Specifically, the support member 2 is a stainless steel ring, which is corrosion-resistant and has high strength, thereby increasing the service life of the device.

[0036] Specifically, the support member 2 is a plastic ring, which can reduce water pressure, prevent scale formation, keep the pipeline system clean and unobstructed, and reduce production costs.

[0037] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0039] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0040] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solar collector explosion-proof header joint, comprising a header and a solar collector tube, characterized in that: A soft joint (1) made of flexible material is provided between the header and the solar heat collecting tube, and a support member (2) is provided on the inner wall of the soft joint (1).

2. A solar collector explosion-proof water header joint according to claim 1, characterized in that: An arc-shaped opening (3) is provided on the inner edge of the soft joint (1) close to one end of the manifold, and the arc-shaped opening (3) is in communication with the soft joint (1).

3. A solar collector explosion-proof water header joint according to claim 2, characterized in that: The distance between the support member (2) and the arc-shaped opening (3) is 5 mm.

4. A solar collector explosion-proof water header joint according to claim 1, characterized in that: The soft joint (1) comprises a soft sleeve (11) plugged into and matched with the solar heat collecting tube, the end of the soft sleeve (11) is fixedly connected with a soft insert (12), and the soft insert (12) is plugged into and matched with the piping interface of the header.

5. A solar collector explosion-proof water-leakage-proof header joint according to claim 4, characterized in that: The soft sleeve (11) and the soft insertion tube (12) are integrally formed.

6. A solar collector explosion-proof water header joint according to claim 5, characterized in that: An annular inner boss (13) abutting against the port of the solar heat collecting tube is formed between the soft sleeve (11) and the soft insert tube (12).

7. A solar collector explosion-proof water header joint according to claim 5, characterized in that: An annular outer boss (14) is provided at one end of the soft insertion tube (12) close to the soft sleeve (11).

8. The solar collector explosion-proof water-leakage-proof header joint according to claim 5, characterized in that: The inner wall of the soft cannula (12) is provided with an annular groove, and the support member (2) is embedded in the annular groove.

9. A solar collector explosion-proof water header joint according to claim 1, characterized in that: The support member (2) is a stainless steel ring.

10. A solar collector explosion-proof water header joint according to claim 1, characterized in that: The support member (2) is a plastic ring.

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