Automatic sealing and connecting device for solar vacuum explosion-proof pipe

Abstract

The invention provides an automatic sealing and connecting device for a solar vacuum explosion-proof pipe, which consists of a connecting structure bracket, a balancing weight, a bevel-tooth-shaped sealing petal and a solar vacuum pipe, and is made of a flexible deformation material, by using the automatic sealing and connecting device for the solar vacuum explosion-proof pipe, the defects of the existing solar heat collector can be overcome, and pressure difference is formed by utilizing the stress area proportion of small flow during operation in the solar vacuum pipe and large flow after pressure loss of a solar heat collector system; due to the materials, the structure and the combination of the flexible deformation material reset adjusting system, the flexible deformation material reset adjusting system has the advantages of being high in cost performance, easy to install, long in accessory service life, capable of reducing operation and maintenance cost and accidental property loss for users, capable of saving more energy and reducing emission.

Description

Technical Field

[0001] The invention relates to the technical field of solar collector accessories, and more specifically to an automatic sealing connection device for solar vacuum explosion-proof pipes. Background Art

[0002] Solar vacuum tubes have been developed in China for more than 30 years. The application of single-group water heaters made of solar vacuum tubes and collectors for commercial multi-group headers has been popularized in China, which has brought great convenience to people's lives and commercial hot water, and has also made great contributions to my country's energy conservation and emission reduction. The composition of the solar collector is multiple tubes and one tube. Multiple solar vacuum tubes are connected in pairs in parallel and plugged into the header. The connection is sealed with an annular sealing ring. The operating principle of the solar collector is that the middle of the double-layer glass tube is evacuated, the inner glass is plated with a metal film heat-absorbing layer, the outer layer is transparent and light-transmitting, and the heat-absorbing layer fluid transports the heat to the hot water storage tank through the header. There is a system defect in the entire solar collector system structure that has not been solved so far, that is, the system leaks heat-conducting medium after the solar vacuum tube explodes. The reasons for this leakage of heat-conducting medium are as follows, such as encountering the impact of cold heat-conducting medium and hot solar vacuum tube, the self-explosion of the solar vacuum tube itself, external force, and the heat-conducting medium in the system freezing and exploding in winter, resulting in the loss of heat-conducting medium in the solar collector system and cannot continue to be used. Especially in the winter when it is the peak season for use, it is extremely difficult to repair after damage and causes excessive peripheral losses and unusability, causing great trouble to users. Some accessories have appeared on the market to prevent the leakage of heat-conducting medium from the solar collector header when the solar vacuum tube breaks. Common leak-proof joints are usually installed at the end inside the solar vacuum tube, but they are not universal for all solar vacuum tubes. Currently, the leak-proof joints on the market need to be used in conjunction with specific outlets and solar vacuum tubes. This design makes many models of solar collectors incompatible. At the same time, once one end of the solar vacuum tube is damaged, it is also very difficult to find a suitable replacement part. The existing products on the market have complex structures, high costs, difficult installation, short lifespan, easy failure, and difficult maintenance.

[0003] In order to solve this problem, we have designed an automatic sealing device to prevent the leakage of heat-conducting medium from the junction box of the solar collector when the solar vacuum tube bursts. After the improvement, it can not only greatly reduce the problem of leakage of heat-conducting medium caused by the damage of the solar vacuum tube, but also reduce the maintenance difficulty and cost of users. It is safer and more reliable to use in the extremely cold environment in winter. The use of the present invention can enhance user experience and product competitiveness. Summary of the invention

[0004] The content of the present invention is to provide a solar vacuum explosion-proof pipe automatic sealing connection device, the material of which is a flexible deformable material. The use of the solar vacuum explosion-proof pipe automatic sealing connection device of the present invention can overcome the above defects of the existing solar collector. It uses the force area ratio of the small flow rate when the solar vacuum tube is running and the large flow rate after the solar collector system loses pressure to form a pressure difference, which acts on the flexible deformable material to reset and adjust the closing and opening of the system. Due to its material, structure and combination, the present invention has high cost performance, simple installation and longer service life of accessories, reduces operation and maintenance costs and accidental property losses for users, and has more energy-saving and emission reduction advantages.

[0005] The present invention is achieved through the following technical solutions: The present invention discloses an automatic sealing connection device for a solar energy vacuum explosion-proof tube, which is composed of a connection structure support, a counterweight, an umbrella-toothed sealing flap, and a solar energy vacuum tube. The connection structure support is formed into an overall circular ring shape by injection molding of a lower casing and a lower sealing ring. The connection structure support is provided with a plurality of upper constant pressure channels. The structure of the connection structure support forms an upper pressure loss channel and an internal support space. The umbrella-toothed sealing flap is concentric with the connection structure support and is placed in an annular space above the lower sealing ring of the connection structure support. The umbrella-toothed sealing flap is in an umbrella arc shape. A counterweight connecting protrusion is provided at the center of the umbrella-toothed sealing flap. Constant pressure channel notches are provided around the edge of the umbrella-toothed sealing flap. The counterweight is in a circular ring shape. A connecting hole is provided at the center of the counterweight. The connecting hole of the counterweight is concentrically clamped on the counterweight connecting protrusion. The solar energy vacuum tube is concentrically arranged in the lower casing.

[0006] Preferably, the connection structure support, the counterweight block, and the bevel-shaped sealing petal of the solar vacuum explosion-proof pipe automatic sealing connection device of the present invention are made of flexible deformable materials.

[0007] The beneficial effects of the present invention are: 1. The automatic sealing connection device for solar vacuum explosion-proof tubes of the present invention is composed of a connection structure bracket, a counterweight block, an umbrella-shaped sealing flap, and a solar vacuum tube, which greatly reduces the water leakage problem caused by the damage of the solar vacuum tube.

[0008] 2. The structure of the solar vacuum explosion-proof pipe automatic sealing connection device of the present invention, which consists of a connection structure bracket, a counterweight block, an umbrella-shaped sealing flap, and a solar vacuum tube, makes the present invention highly cost-effective, simple to install, and has a longer service life of accessories.

[0009] 3. The solar vacuum explosion-proof pipe automatic sealing connection device of the present invention is composed of a connection structure bracket, a counterweight block, an umbrella-shaped sealing petal, and a solar vacuum tube, which reduces the operation and maintenance costs and accidental property losses for users and has the advantages of energy saving and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The invention is a schematic diagram of the main structure of a solar vacuum explosion-proof pipe automatic sealing connection device.

[0011] Figure 2 It is a side structural schematic diagram of the automatic sealing connection device for solar vacuum explosion-proof pipes of the present invention.

[0012] Figure 3 This is a schematic cross-sectional view of the automatic sealing connection device for solar vacuum explosion-proof pipes of the present invention. Figure 4 It is a schematic cross-sectional structure diagram of the connection structure bracket of the present invention.

[0013] Figure 5 It is a schematic diagram of the matching structure of the counterweight block and the bevel-toothed sealing flap of the present invention.

[0014] Figure 6 It is a schematic diagram of the structure of the bevel-toothed sealing flap of the present invention.

[0015] Figure 7 It is a schematic diagram of the flow direction of the heat conducting medium of the present invention during normal operation.

[0016] Figure 8 It is a schematic diagram of the flow direction of the heat-conducting medium after the solar energy vacuum tube of the present invention is damaged.

[0017] Fig. 9 It is a schematic diagram of the deformation of the bevel-toothed sealing petal after the TaiNeng vacuum tube of the present invention is damaged.

[0018] Fig.10 It is a block diagram of the working principle of the present invention.

[0019] In the figure, the present invention includes a connecting structure bracket 1, a counterweight block 2, an umbrella-shaped sealing flap 3, a Taineng vacuum tube 4, a lower sleeve 11, a lower sealing ring 12, an upper constant pressure channel 13, an upper pressure loss channel 14, an inner support space 15, a connecting hole 21, a counterweight connecting protrusion 31, and a constant pressure channel notch 32. DETAILED DESCRIPTION

[0020] The invention is further described below in conjunction with the drawings: A solar energy vacuum explosion-proof pipe automatic sealing connection device of the present invention is composed of a connection structure support 1, a counterweight block 2, an umbrella-toothed sealing flap 3, and a solar energy vacuum tube 4. The connection structure support 1 is formed into an overall annular shape by injection molding of a lower casing 11 and a lower sealing ring 12. The connection structure support 1 is provided with a plurality of upper constant pressure channels 13. The structure of the connection structure support 1 forms an upper pressure loss channel 14 and an inner support vacancy 15. The umbrella-toothed sealing flap 3 is concentric with the connection structure support 1 and is placed in an annular space above the lower sealing ring 12 of the connection structure support 1. The umbrella-toothed sealing flap 3 is in an umbrella arc shape. A counterweight connecting protrusion 31 is arranged at the center of the umbrella-toothed sealing flap 3. A constant pressure channel notch 32 is arranged around the edge of the umbrella-toothed sealing flap 3. The counterweight block 2 is in an annular shape. A connecting hole 21 is arranged at the center of the counterweight 2. The connecting hole 21 of the counterweight block 2 is concentrically clamped on the counterweight connecting protrusion 31. The solar energy vacuum tube 4 is concentrically arranged in the lower casing 11.

[0021] The embodiments of the present invention are as follows: when the heat-conducting medium system in the manifold of the solar collector operates normally, the pressure of the heat-conducting medium in the manifold and the pressure of the heat-conducting medium in the solar vacuum tube 4 are balanced, and the heat-conducting medium flows through the upper constant pressure channel 13, and enters the solar vacuum tube 4 from the constant pressure channel notch 32 of the bevel-toothed sealing flap 3 for heat exchange. At this time, the self-circulating flow rate of the heat-conducting medium in the solar vacuum tube 4 is small, and the bevel-toothed sealing flap 3 is in a natural umbrella arc shape. If the impact of the cold heat-conducting medium and the hot solar vacuum tube 4, the self-explosion of the solar vacuum tube 4 itself, the external force, the freezing and explosion of the heat-conducting medium in the system in winter, etc. is encountered, the solar vacuum tube 4 in the connecting structure bracket 1 will be damaged, which will cause too much The circulation system of the solar collector loses pressure. After the pressure loss, the heat-conducting medium fluid running at a large flow rate will enter the upper end of the connecting structure bracket 1 from the upper pressure loss channel 14, thereby pushing the upper surface of the umbrella-toothed sealing petal 3 with a larger force area to move downward. Because the umbrella-toothed sealing petal 3 is made of a flexible deformable material, the umbrella-toothed sealing petal 3 is pushed by pressure to move toward the lower sealing ring 12 until it is sealed and leak-proof. The umbrella-toothed sealing petal 3 has an umbrella arc shape as its initial structure, and its deformation is close to a flat plate shape after being sealed by force. The deformation stress of the umbrella-toothed sealing petal 3 and the buoyancy of the counterweight are stored for conduction at any time in the later stage. When a new solar vacuum tube 4 is inserted into the lower casing 11, a certain force is applied to complete the conduction and pressure balance operation.

[0022] When the heat transfer medium system of the solar collector's manifold is no longer needed in summer or when there are unified maintenance conditions, the solar vacuum tubes 4 can be replaced uniformly, or they can be replaced at any time. During replacement, when the intact solar vacuum tube is inserted into the lower sleeve 11, when the pressure of the external insertion force is greater than the pressure in the manifold of the solar collector, the air pressure in the solar vacuum tube will push the parapet-shaped sealing flap 3 to move upward, the upper constant pressure channel 13 is connected, and the heat transfer medium flows into the solar vacuum tube 4 from the constant pressure channel notch 32 on the parapet-shaped sealing flap 3. When the parapet-shaped sealing flap 3 returns to the original installation position, the pressure of the heat transfer medium in the heat transfer medium system of the solar collector's manifold is balanced with the pressure of the heat transfer medium in the solar vacuum tube 4, and the system in the solar collector circulates normally.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any slight modification, equivalent substitution and improvement made to the above embodiment based on the technical essence of the present invention should be included in the protection scope of the technical solution of the present invention.

Claims

1. A solar vacuum explosion-proof pipe automatic sealing connection device comprises a connection structure support (1), a counterweight (2), an umbrella-toothed sealing flap (3), and a solar vacuum pipe (4), wherein the connection structure support (1) is formed into an integral annular shape by injection molding of a lower casing (11) and a lower sealing ring (12), the connection structure support (1) is provided with a plurality of upper constant pressure channels (13), the structure of the connection structure support (1) forms an upper pressure loss channel (14), an inner support space (15), the umbrella-toothed sealing flap (3) is concentric with the connection structure support (1) and is placed at In the annular space above the lower sealing ring (12) of the connecting structure support (1), the bevel-toothed sealing flap (3) is in an umbrella arc shape, a counterweight connecting protrusion (31) is provided at the center of the bevel-toothed sealing flap (3), and a constant pressure channel notch (32) is provided around the edge of the bevel-toothed sealing flap (3). The counterweight block (2) is in an annular shape, a connecting hole (21) is provided at the center of the counterweight block (2), and the connecting hole (21) of the counterweight block (2) is concentrically clamped on the counterweight connecting protrusion (31). The solar vacuum tube (4) is concentrically arranged in the lower casing (11).

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