Automatic sealing and connecting device for solar vacuum explosion-proof pipe
By using a flexible deformable material connecting structure support and a beveled sealing flap, the solar vacuum tube is automatically sealed, solving the problem of heat transfer medium leakage caused by vacuum tube rupture, improving system safety and maintainability, and reducing maintenance costs.
Patent Information
- Application Number
- CN202423238806.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing solar vacuum tubes are prone to leaking heat transfer medium when they burst, and existing leak-proof joints are not universal, are complicated to install, costly, have a short lifespan, are difficult to maintain, and are unsafe and unreliable, especially in extreme winter environments.
The connecting structure support, counterweight, and umbrella-shaped sealing flap, made of flexible deformable material, automatically adjust the closing or opening based on pressure difference to achieve automatic sealing, adapting to damage and normal operation of solar vacuum tubes.
It effectively reduces water leakage, lowers maintenance difficulty and cost, extends service life, enhances user experience and system security, and is especially reliable in winter environments.
Smart Images
Figure CN223677984U_ABST
Abstract
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 peripheral loss 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 explodes. 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 explosion -proof pipe automatic sealing connecting device, its material selects flexible deformation material, the use of the solar vacuum explosion -proof pipe automatic sealing connecting device of the utility model can overcome above -mentioned 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 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 unexpected property loss for user, more energy -conserving and emission -reducing advantages.
[0005] The utility model discloses the following technical scheme to realize:
[0006] The utility model discloses a solar vacuum explosion -proof pipe automatic sealing connecting device by connecting structure support, counterweight, umbrella tooth shape sealing petal, too can vacuum pipe composition, the connecting structure support is by lower casing, lower sealing ring injection molding and becomes whole circular ring, the connecting structure support sets up multiple upper constant pressure passageway, the structure of connecting structure support formed upper pressure loss passageway, inner support empty space, umbrella tooth shape sealing petal with connecting structure support concentric and place in the annular space above lower sealing ring of connecting structure support, umbrella tooth shape sealing petal is umbrella arc shape, the upper center of umbrella tooth shape sealing petal sets up counterweight connection protruding, set up constant pressure passageway notch at the edge of umbrella tooth shape sealing petal all around, the counterweight is circular ring, the center of counterweight sets up connecting hole, the connecting hole of counterweight is concentric and is clamped on counterweight connection protruding, solar vacuum tube concentric device in lower casing.
[0007] As preferred, the solar vacuum explosion -proof pipe automatic sealing connecting device connecting structure support, counterweight, umbrella tooth shape sealing petal of the utility model selects flexible deformation material.
[0008] The utility model discloses the beneficial effect is:
[0009] I, the solar vacuum explosion -proof pipe automatic sealing connecting device of the utility model is composed of connecting structure support, counterweight, umbrella tooth shape sealing petal, too can vacuum pipe, and the structure greatly reduces the water leakage problem caused by solar vacuum tube breakage.
[0010] II, the solar vacuum explosion -proof pipe automatic sealing connecting device of the utility model is composed of connecting structure support, counterweight, umbrella tooth shape sealing petal, too can vacuum pipe, and the structure makes the utility model have high performance -price ratio, simple installation and longer accessory service life.
[0011] Third, the automatic sealing connecting device of solar vacuum explosion-proof pipe of the utility model is composed of the connecting structure support, the counterweight block, the bevel gear sealing petal 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
[0012] Figure 1 is the front view structural schematic diagram of the automatic sealing connecting device of solar vacuum explosion-proof pipe of the utility model.
[0013] Figure 2 is the side view structural schematic diagram of the automatic sealing connecting device of solar vacuum explosion-proof pipe of the utility model.
[0014] Figure 3 is the cross-sectional view structural schematic diagram of the automatic sealing connecting device of solar vacuum explosion-proof pipe of the utility model
[0015] Figure 4 is the cross-sectional view structural schematic diagram of the connecting structure support of the utility model.
[0016] Figure 5 is the matching structural schematic diagram of the counterweight block and the bevel gear sealing petal of the utility model.
[0017] Figure 6 is the structural schematic diagram of the bevel gear sealing petal of the utility model.
[0018] Figure 7 is the flow direction schematic diagram of the heat-conducting medium in normal operation of the utility model.
[0019] Figure 8 is the flow direction schematic diagram of the heat-conducting medium after the solar vacuum pipe of the utility model is damaged.
[0020] Figure 9 is the deformation schematic diagram of the bevel gear sealing petal after the solar vacuum pipe of the utility model is damaged.
[0021] Figure 10 is the working principle block diagram of the utility model.
[0022] In the drawings, the utility model contains the connecting structure support 1, the counterweight block 2, the bevel gear sealing petal 3, the solar vacuum pipe 4, the lower sleeve 11, the lower sealing ring 12, the upper constant pressure channel 13, the upper pressure loss channel 14, the inner support space 15, the connecting hole 21, the counterweight connecting protrusion 31, the constant pressure channel notch 32. 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 explosion-proof pipe, which is composed of connecting structure support 1, counterweight 2, bevel gear sealing petal 3, solar vacuum tube 4, the connecting structure support 1 is integrally annular by lower sleeve 11, lower sealing ring 12 injection molding, the connecting structure support 1 is provided with multiple upper constant-pressure channels 13, the structure of the connecting structure support 1 forms upper pressure loss channel 14, inner support vacancy 15, the bevel gear sealing petal 3 is concentric with the connecting structure support 1 and is placed in the annular space above lower sealing ring 12 of connecting structure support 1, the bevel gear sealing petal 3 is umbrella arc, the bevel gear sealing petal 3 is provided with counterweight connection protrusion 31 in the center, bevel gear sealing petal 3 is provided with constant-pressure channel notch 32 around the edge, the counterweight 2 is annular, the counterweight 2 is provided with connecting hole 21 in the center, the connecting hole 21 of the counterweight 2 is concentrically clamped on the counterweight connection protrusion 31, and the solar vacuum tube 4 is concentrically arranged in the lower sleeve 11.
[0025] The utility model discloses the following implementation: the heat conducting medium system in the header of solar collector is balanced when the header is normally operated, and the heat conducting medium passes through the upper constant-pressure channel 13, enters the solar vacuum tube 4 to exchange heat from the constant-pressure channel notch 32 of the bevel gear sealing petal 3, at this time, the heat conducting medium in the solar vacuum tube 4 has a small self-circulation flow, the bevel gear sealing petal 3 is in a natural umbrella arc shape, when the cold heat conducting medium and the hot solar vacuum tube 4 are impacted, the solar vacuum tube 4 itself is exploded, external force, the heat conducting medium in the system is frozen and exploded in winter, etc., the solar vacuum tube 4 in the connecting structure support 1 is damaged, which can cause the pressure loss of the circulating system of the solar collector, and after the pressure loss, the high-flow heat conducting medium fluid can enter the upper end of the connecting structure support 1 from the upper pressure loss channel 14, so as to push the upper surface of the bevel gear sealing petal 3 with a large stress area to displace downward, because the bevel gear sealing petal 3 is made of a flexible material, the bevel gear sealing petal 3 moves downward to the lower sealing ring 12 under the pressure, until it is closed and does not leak water, the bevel gear sealing petal 3 is in an umbrella arc shape due to its initial structure, and is deformed into a flat type after being sealed under stress, the stress of the deformed bevel gear sealing petal 3 and the buoyancy of the counterweight are stored at any time, and when a new solar vacuum tube 4 is inserted into the lower sleeve 11, a certain force is applied to complete the conduction and pressure balance operation.
[0026] When the heat medium system of the solar collector header enters the summer without the need to use or have a unified maintenance conditions, the solar vacuum tube 4 can be replaced uniformly, or it can be replaced at any time. When the perfect solar vacuum tube is inserted into the lower sleeve 11, the pressure of the air in the solar vacuum tube will push the pantograph sealing flap 3 to displace upward when the external force inserted pressure is greater than the pressure in the header of the solar collector. The upper constant pressure channel 13 is conducted, and the heat medium flows into the solar vacuum tube 4 from the constant pressure channel gap 32 on the pantograph sealing flap 3. When the pantograph sealing flap 3 returns to the original installation position, the pressure of the heat medium in the heat medium system of the header of the solar collector and the pressure of the heat medium in the solar vacuum tube 4 are balanced, and the system in the solar collector normally circulates.
[0027] The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any slight modification, equivalent replacement and improvement of the above embodiment according to the technical essence of the present application should be included in the protection scope of the technical scheme of the present application.
Claims
1. A solar vacuum explosion-proof tube automatic sealing connection device is composed of a connecting structure support (1), a counterweight (2), a bevel gear sealing petal (3) and a solar vacuum tube (4), characterized in that the connecting structure support (1) is integrally formed into a whole annular shape by a lower sleeve (11) and a lower sealing ring (12) through injection molding, the connecting structure support (1) is provided with a plurality of upper constant pressure channels (13), the structure of the connecting structure support (1) forms an upper pressure loss channel (14) and an inner support space (15), the bevel gear sealing petal (3) is concentric with the connecting structure support (1) and is placed in the annular space above the lower sealing ring (12) of the connecting structure support (1), the bevel gear sealing petal (3) is in the shape of an umbrella arc, a counterweight connecting protrusion (31) is arranged at the center of the bevel gear sealing petal (3), and constant pressure channel notches (32) are arranged around the edges of the bevel gear sealing petal (3), the counterweight (2) is in the shape of a ring, a connecting hole (21) is arranged at the center of the counterweight (2), the connecting hole (21) of the counterweight (2) is concentrically clamped on the counterweight connecting protrusion (31), and the solar vacuum tube (4) is concentrically arranged in the lower sleeve (11).