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

Abstract

The utility model provides an automatic sealing and connecting device for a solar vacuum explosion-proof tube, which consists of an integrated flexible support and a solar vacuum tube and is made of flexible deformation materials, and the automatic sealing and connecting device for the solar vacuum explosion-proof tube can be used for overcoming the defects of the existing solar heat collector. Pressure difference is formed according to the stress area proportion of small flow during operation in a solar vacuum tube and large flow after pressure loss of a solar heat collector system, and the pressure difference acts on closing and opening of a flexible deformation material reset adjusting system. Therefore, the device has the advantages of high cost performance, simplicity in installation, longer service life of accessories, reduction of operation and maintenance cost and accidental property loss for users, energy conservation and emission reduction.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of solar energy collector accessories, more particularly, the utility model relates to an automatic sealing and connecting device for a solar vacuum explosion-proof pipe. BACKGROUND

[0002] Solar vacuum tubes have been developed in China for more than thirty years. Single-group water heaters and commercial multi-group collector boxes made of solar vacuum tubes have been widely used in China, bringing great convenience to people's life and commercial hot water, and making great contribution to energy saving and emission reduction in China. The composition of a solar collector includes multiple pipes and one pipe. The multiple solar vacuum tubes are connected in pairs and in parallel to form a collector box, and the connection is sealed by a ring-shaped sealing ring. The operating principle of the solar collector is that the double-layer glass tube is evacuated in the middle, the inner glass is coated with a metal film heat-absorbing layer, and the outer layer is transparent and transmits light. The heat-absorbing layer transports heat to the heat storage tank through the collector. There is a system defect in the entire solar collector system structure that has not been solved so far, which is the leakage of heat transfer medium after the solar vacuum tube explosion. The reasons for the leakage of heat transfer medium include the impact of cold heat transfer medium and hot solar vacuum tube, self-explosion of the solar vacuum tube, external force, and freezing explosion of the heat transfer medium in the system in winter. This leads to the loss of the heat transfer medium in the solar collector system and the inability to continue using it. Especially in the winter, it is difficult to repair and causes great damage and cannot be used. This causes great inconvenience to users. Some accessories that prevent the leakage of heat transfer medium from the collector box of the solar collector when the solar vacuum tube breaks have appeared in the market. The common leak-proof joint is usually installed at the end of the solar vacuum tube inside, but it cannot be used for all solar vacuum tubes. Currently, the leak-proof joint needs to be used with a specific medium outlet and solar vacuum tube. This design makes many types of solar collectors incompatible. At the same time, it is difficult to find suitable replacement accessories once one end of the solar vacuum tube is damaged. The existing products on the market have complex structures, high costs, difficult installation, short service life, easy failure, and are not easy to maintain.

[0003] To solve this problem, we have designed an automatic sealing device to prevent the leakage of heat transfer medium from the collector box of the solar collector when the solar vacuum tube breaks. After improvement, not only can it greatly reduce the problem of leakage of heat transfer medium caused by damage to the solar vacuum tube, but also can reduce the maintenance difficulty and cost of users, especially in extremely cold environments in winter. The use of the utility model can improve user experience and product competitiveness. SUMMARY

[0004] The utility model discloses a solar vacuum anti -explosion pipe automatic sealing connecting device, its material selects flexible deformation material, the use of the solar vacuum anti -explosion pipe automatic sealing connecting device of the utility model can overcome above defects of prior art solar collector, is the utilization solar vacuum tube inside operation small flow and solar collector system pressure loss after big flow stress area ratio forms pressure difference, acts and gives flexible deformation material reset adjustment system's closing and opening, the utility model discloses due to its material, structure and combination, make it have high performance -price ratio, simple installation and longer accessory service life, reduce the operation maintenance cost and accidental property loss for the user, more energy -conserving and emission -reducing advantages.

[0005] The utility model discloses the following technical scheme to realize:

[0006] A solar vacuum anti -explosion pipe automatic sealing connecting device of the utility model is composed of integral flexible support and solar vacuum pipe, the integral flexible support is integrally round by lower sleeve, lower sealing ring, C type flexible elastic wall, upper pressure displacement sealing cover injection molding, the C type flexible elastic wall of integral flexible support is provided with a plurality of constant pressure fluid channels, the structure of integral flexible support forms the embeddable counterweight reservation position, and the embeddable metal support ring reservation position, the solar vacuum pipe concentric assembly is in the embeddable metal support ring reservation position of lower sleeve of integral flexible support.

[0007] As preferred, the integral flexible support of the solar vacuum anti -explosion pipe automatic sealing connecting device of the utility model selects flexible deformation material.

[0008] As preferred, the embeddable counterweight reservation position of the integral flexible support of the solar vacuum anti -explosion pipe automatic sealing connecting device of the utility model can assemble counterweight device according to counterweight requirement.

[0009] As preferred, the embeddable metal support ring reservation position of the integral flexible support of the solar vacuum anti -explosion pipe automatic sealing connecting device of the utility model can configure metal support ring.

[0010] The utility model discloses the beneficial effect is:

[0011] I, the solar vacuum anti -explosion pipe automatic sealing connecting device of the utility model is composed of integral flexible support and solar vacuum pipe, and the structure greatly reduces the water leakage problem caused by solar vacuum pipe breakage.

[0012] II, the solar vacuum anti -explosion pipe automatic sealing connecting device of the utility model is composed of integral flexible support and solar vacuum pipe, and the structure makes the utility model have high performance -price ratio, simple installation and longer accessory service life.

[0013] The automatic sealing connection device of the solar vacuum explosion-proof pipe of the utility model is composed of the integral flexible support and the solar vacuum pipe, which reduces the operation and maintenance cost and accidental property loss of users and has the advantages of energy saving and emission reduction. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 Figure 1 is a front view structural schematic diagram of the automatic sealing connection device of the solar vacuum explosion-proof pipe of the utility model.

[0015] Figure 2 Figure 2 is a side view structural schematic diagram of the automatic sealing connection device of the solar vacuum explosion-proof pipe of the utility model.

[0016] Figure 3 Figure 3 is a sectional view structural schematic diagram of the automatic sealing connection device of the solar vacuum explosion-proof pipe of the utility model.

[0017] Figure 4 Figure 4 is a side view structural schematic diagram of the integral flexible support of the utility model.

[0018] Figure 5 Figure 5 is a sectional view structural schematic diagram of the integral flexible support of the utility model.

[0019] Figure 6 Figure 6 is a flow direction schematic diagram of the heat conducting medium in normal operation of the utility model.

[0020] Figure 7 Figure 7 is a flow direction schematic diagram of the heat conducting medium after the solar vacuum pipe of the utility model is damaged.

[0021] Figure 8 Figure 8 is a deformation schematic diagram of the integral flexible support after the solar vacuum pipe of the utility model is damaged.

[0022] In the drawings, the utility model contains an integral flexible support 1, a solar vacuum pipe 2, a lower sleeve 11, a lower sealing ring 12, a C-shaped bendable elastic wall 13, an upper pressure displacement sealing cover 14, an upper constant pressure channel 15, an embeddable counterweight reserved position 16 and an embeddable metal support ring reserved position 17. DETAILED DESCRIPTION

[0023] The utility model will be further described in combination with the drawings as follows:

[0024] The utility model discloses a kind of automatic sealing connection devices of solar vacuum anti-explosion pipe, by integrated flexible support 1, solar vacuum tube 2 is formed, the integrated flexible support 1 is by lower sleeve 11, lower sealing ring 12, C-type bendable elastic wall 13, upper pressure displacement sealing cover 14 injection molding and become integral circular shape, multiple constant pressure fluid passages 15 are provided on the C-type bendable elastic wall 13 of the integrated flexible support 1, the structure of the integrated flexible support 1 forms that can be embedded counterweight reserved position 16, can be embedded metal support ring reserved position 17, the solar vacuum tube 2 concentric assembly in lower sleeve 11 of the integrated flexible support 1 can be embedded metal support ring reserved position 17.

[0025] The utility model discloses the following implementation, when the header and the pressure balance heat conducting medium in solar vacuum tube 2 of solar heat collector's header heat conducting medium system are normally operated, pass through lower sealing ring 12 and enter solar vacuum tube 2 by upper constant pressure passage 15, the heat conducting medium of upper constant pressure passage 15 exchanges with the heat conducting medium in solar vacuum tube 2, at this time, the flow is the self-circulation flow of heated heat conducting medium in solar vacuum tube smaller, when solar vacuum tube in integrated flexible support 1 breaks, it can cause system pressure loss, after pressure loss, large flow operation heat conducting medium fluid can give the pressure of the upper pressure displacement sealing cover 14 of area relatively large displacement downward, the displacement downward because the structure of the integrated flexible support 1 is flexible deformation material, moves to lower sealing ring 12 by the push of pressure until closed heat conducting medium does not leak, the stress of deformation and the buoyancy of the embedded counterweight reserved position 16 are all in for later time heat conducting medium in upper constant pressure passage 15 storage, when new solar vacuum tube 2 is inserted, complete the conduction of upper constant pressure passage 15 and the system pressure balance operation of solar heat collector with certain pressure.

[0026] The utility model discloses the use to solar heat collector operation and maintenance leaves time, when solar heat collector's header heat conducting medium system enters summer and does not need to use or has unified maintenance condition, can replace solar vacuum tube 2 uniformly, or also can replace at any time, when replacing, when the header of perfect solar heat collector is inserted because external force pressure is greater than the pressure of the heat conducting medium in the header, the pressure in solar vacuum tube 2 can push upper pressure displacement sealing cover 14 and displace upward to return to original installation position state, after the heat conducting medium of solar heat collector's header heat conducting medium system conduction, solar heat collector and solar vacuum tube pressure balance, the system in solar heat collector normally circulates and runs system.

[0027] The above, just for the preferred embodiment of the utility model, and not to limit the utility model, any slight modification, equivalent replacement and improvement according to the technical essence of the utility model to the above embodiment, should include in the protection scope of the technical scheme of the utility model.

Claims

1. A solar vacuum explosion-proof tube automatic sealing connection device, comprising a one-piece flexible support (1) and a solar vacuum tube (2), characterized in that, The integrated flexible support (1) is integrally formed in a circular shape by injection molding of a lower sleeve (11), a lower sealing ring (12), a C-shaped bendable elastic wall (13), and an upper pressure displacement sealing cover (14). The C-shaped bendable elastic wall (13) of the integrated flexible support (1) is provided with a plurality of constant pressure fluid channels (15). The structure of the integrated flexible support (1) forms an embeddable counterweight reserved position (16) and an embeddable metal support ring reserved position (17). The solar vacuum tube (2) is concentrically assembled in the embeddable metal support ring reserved position (17) of the lower sleeve (11) of the integrated flexible support (1).

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