CN210463627U

CN210463627U - Solar vacuum tube inner sealing structure capable of improving heat efficiency

Info

Publication number: CN210463627U
Application number: CN201921452379.4U
Authority: CN
Inventors: 周学众
Original assignee: Guangzhou Tengen Solar Technology Co ltd
Current assignee: Guangzhou Tengen Solar Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-05-05
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses a can raise heat efficiency's seal structure in solar vacuum tube, including water tank and vacuum tube, the water tank is fixed with gum cover and expand tube subassembly including outer courage and inner bag, the one end that vacuum tube and water tank are connected, gum cover and expand tube subassembly stretch out one in the upper end the place ahead of vacuum tube, and the inner bag of water tank forms sealed combination with the side of the part gum cover that stretches out the vacuum tube upper end and expand tube subassembly and fixes to make the vacuum tube see through gum cover and expand tube subassembly and the inside intercommunication each other of water tank. The utility model discloses an adopt gum cover and expand tube cooperation to form an assembly, assembly one end and inner bag are sealed fixed, and the other end inserts and realizes sealed fixed in the vacuum tube, just so forms a transition portion with the assembly of gum cover with the expand tube to realize rivers and circulate between water tank and vacuum tube, so let the vacuum tube withdraw from the inner bag of water tank completely, make the effective heat collection section of vacuum tube obtain the increase, thereby can the increasing of thermal efficiency.

Description

Solar vacuum tube inner sealing structure capable of improving heat efficiency

Technical Field

The utility model relates to a solar water heating device technical field especially relates to a sealed fixed knot who is arranged in solar water heating device vacuum tube and water tank constructs.

Background

Solar energy is widely used in various aspects of human production and life due to its advantages of being clean, widespread, inexhaustible, etc., with solar hot water being the most common application. In the field of solar water heating, solar vacuum heat collecting tubes are widely applied to solar water heaters and large solar water heating systems. At present, the vacuum tube is generally sealed and fixed by an external sealing mode, namely an external sealing ring is sleeved on an inner container of a water tank. In order to ensure the effectiveness of external sealing, the vacuum tube generally exceeds the external sealing ring by 2-3CM, and the part of the vacuum tube even reaches 5-6CM, and the heat insulation layer between the inner container and the outer container generally has the thickness of 5 CM. Therefore, about 8-10 CM of vacuum tubes are hidden in the water tank, and the vacuum tubes cannot actually generate a heat collection effect, so that the heat efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to prior art's defect, provide a simple structure, design more reasonable, reducible vacuum tube stretch into the length of water tank, and then raise the thermal efficiency's seal structure in the solar energy vacuum tube.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides a can raise the interior seal structure of solar vacuum tube of thermal efficiency, including water tank and vacuum tube, both install on the support, the water tank is including outer courage and inner bag, the inside intercommunication of vacuum tube and water tank, its characterized in that: the vacuum pipe is fixedly connected with the water tank through the rubber sleeve and the expansion pipe assembly, and the upper end of the vacuum pipe is embedded in the heat insulation layer between the inner container and the outer container; the rubber sleeve and the expansion pipe assembly extend out of one part in front of the upper end of the vacuum pipe, and the inner container of the water tank and the part of the rubber sleeve extending out of the upper end of the vacuum pipe are fixedly combined with the side face of the expansion pipe assembly in a sealing mode, so that the vacuum pipe is communicated with the expansion pipe assembly and the water tank through the rubber sleeve.

Further, the gum cover and expand tube subassembly are including gum cover and expand tube, and the expand tube is fixed in the gum cover with the insertion mode and forms the extrusion structure towards the outside to the gum cover, makes the gum cover form the inflation of certain degree, can compress tightly gum cover and water tank inner bag, lets water can not flow from the contact surface.

Furthermore, the rubber sleeve and the expansion pipe are pressed into the upper end of the vacuum pipe together to form an interference fit and sealing structure with the vacuum pipe, the rubber sleeve and the expansion pipe expose a section and penetrate through the inner container to be inserted into the water tank, and water can enter the vacuum pipe through an inner hole of the expansion pipe.

Furthermore, the rubber sleeve is a silica gel sleeve, and the outer side wall of the upper end of the rubber sleeve is provided with a ring of annular groove; the clamping part is clamped in the annular groove to form a sealing and fixing structure of the water tank and the rubber sleeve, so that the connection stability can be improved, and looseness and gaps cannot be generated between the rubber sleeve and the inner container.

Furthermore, a plurality of limit grooves are formed in the outer side wall of the rubber sleeve, limit convex rings matched with the limit grooves are arranged on the inner side wall of the upper portion of the vacuum tube, the rubber sleeve is embedded into the limit grooves through the limit convex rings after being pressed into the vacuum tube to form a fixing and sealing structure of the rubber sleeve and the vacuum tube, so that looseness and gaps cannot be generated between the rubber sleeve and the vacuum tube, sealing between the rubber sleeve and the inner wall of the vacuum tube is achieved, and water is sealed in the vacuum tube.

Furthermore, a plurality of rings of clamping grooves are formed in the outer side wall of the expansion pipe, clamping convex rings matched with the clamping grooves are arranged on the inner side wall of the rubber sleeve, the expansion pipe is clamped into the clamping grooves through the clamping convex rings after being pressed into the rubber sleeve to form a fixing and sealing structure of the expansion pipe and the rubber sleeve, and therefore looseness and gaps cannot be generated between the expansion pipe and the rubber sleeve.

Further, a bracket protruding outwards is arranged at the lower end of the expansion pipe, and the lower end of the rubber sleeve is pressed on the bracket so as to facilitate assembly.

Furthermore, a dustproof ring is arranged at the joint of the vacuum tube and the outer container, so that dust is prevented from entering, and heat loss from the gap is prevented.

Preferably, the expansion pipe is made of temperature-resistant materials, including nylon, PPR or metal materials, and the materials have the performances of higher strength, high temperature resistance and the like.

The top of the water tank is also provided with a 5L water replenishing tank so as to replenish water to the water tank when needed.

The vacuum tube is supported by an adjustable tail support below the vacuum tube, and after the vacuum tube is assembled, the bottom box is screwed up to support the vacuum tube so as not to fall down.

The utility model discloses an adopt gum cover and expand tube cooperation to form an assembly, assembly one end and inner bag are sealed fixed, the other end inserts and realizes sealed fixed in the vacuum tube, just so form a transition portion with the assembly of gum cover with the expand tube, realize rivers through this transition portion and circulate between water tank and vacuum tube in order to play the heating effect, so changed sealed mode promptly, let the vacuum tube withdraw from the inner bag of water tank completely, make the effective section of collecting heat of vacuum tube obtain the increase, thereby can improve the thermal efficiency, the installation operation has been simplified simultaneously.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is an enlarged view of portion A of FIG. 1;

FIG. 3 is a schematic front (left) and side (right) view of the silicone sleeve;

fig. 4 is a schematic front (left) and part (right) view of the expander.

In the figure, 1 is a water tank, 2 is a vacuum pipe, 3 is a bracket, 4 is a water replenishing tank, 5 is an outer container, 6 is an inner container, 61 is a clamping part, 7 is a rubber sleeve, 71 is an annular groove, 72 is a limiting groove, 73 is a clamping convex ring, 8 is an expansion pipe, 81 is a bracket, 82 is a clamping groove, and 9 is a dust ring.

Detailed Description

In this embodiment, referring to fig. 1 to 4, the solar vacuum tube inner sealing structure capable of improving thermal efficiency includes a water tank 1 and a vacuum tube 2, both of which are mounted on a bracket 3, the water tank 1 includes an outer liner 5 and an inner liner 6, and the vacuum tube 2 is communicated with the inside of the water tank 1; a rubber sleeve and an expansion pipe assembly are fixed at one end of the vacuum pipe 2 connected with the water tank 1, the vacuum pipe 2 is connected and fixed with the water tank 1 through the rubber sleeve and the expansion pipe assembly, and the upper end of the vacuum pipe 2 is embedded in the heat insulation layer between the inner container 6 and the outer container 5; the rubber sleeve and the expansion pipe assembly extend out of one part in front of the upper end of the vacuum pipe 2, and the inner container 6 of the water tank 1 and the rubber sleeve extending out of the upper end of the vacuum pipe 2 are fixedly combined with the side face of the expansion pipe assembly in a sealing mode, so that the vacuum pipe 2 is communicated with the expansion pipe assembly and the water tank through the rubber sleeve.

The gum cover and the expand tube subassembly are including gum cover 7 and expand tube 8, and expand tube 8 is fixed in gum cover 7 with the insertion mode and forms the extrusion structure towards the outside to gum cover 7, makes gum cover 7 form the inflation of certain degree, can compress tightly the inner bag 6 of gum cover 7 and water tank 1, lets water can not flow from the contact surface.

The rubber sleeve 7 and the expansion pipe 8 are pressed into the upper end of the vacuum pipe 2 together to form an interference fit and sealing structure with the vacuum pipe 2, the rubber sleeve 7 and the expansion pipe 8 are exposed out of one section and penetrate through the inner container 6 to be inserted into the water tank 1, and water can enter the vacuum pipe 2 through an inner hole of the expansion pipe 8.

The rubber sleeve 7 is a silica gel sleeve, and the outer side wall of the upper end of the rubber sleeve is provided with a circle of annular grooves 71; the position where the inner container 6 is connected with the rubber sleeve 7 is subjected to secondary expansion through punching and drawing to form a clamping part 61, the clamping part 61 is clamped in the annular groove 71 to form a sealing and fixing structure of the water tank 1 and the rubber sleeve 7, the connection stability can be improved, looseness and gaps cannot be generated between the rubber sleeve 7 and the inner container 6, and water is prevented from flowing out due to the gaps.

The outer side wall of the rubber sleeve 7 is provided with a plurality of limiting grooves 72, the inner side wall of the upper part of the vacuum tube 2 is provided with a limiting convex ring (not marked) matched with the limiting grooves 72, and the rubber sleeve 7 is embedded into the limiting grooves 72 through the limiting convex ring after being pressed into the vacuum tube 2 to form a fixing and sealing structure of the rubber sleeve 7 and the vacuum tube 2, so that looseness and a gap cannot be generated between the rubber sleeve 7 and the vacuum tube 2, the rubber sleeve 7 and the inner wall of the vacuum tube 2 are sealed, and water is sealed in the vacuum tube 2.

The outer side wall of the expanding tube 8 is provided with a plurality of rings of clamping grooves 82, the inner side wall of the rubber sleeve 7 is provided with clamping convex rings 73 matched with the clamping grooves 82, after the expanding tube 8 is pressed into the rubber sleeve 7, the expanding tube 8 is clamped into the clamping grooves 82 through the clamping convex rings 73 to form a fixing and sealing structure of the expanding tube 8 and the rubber sleeve 7, so that looseness and gaps cannot be generated between the expanding tube 8 and the rubber sleeve 7, and water is prevented from flowing out of the gaps.

At the lower end of the expander 8 there is an outwardly projecting bracket 81, against which bracket 81 the lower end of the gum cover 7 is pressed for assembly.

The dust ring 9 is arranged at the joint of the vacuum tube 2 and the outer liner 5, so that dust is prevented from entering, and heat loss from the gap is prevented.

The expanding tube 8 is made of temperature-resistant materials, including nylon, PPR or metal materials, and the materials have the properties of higher strength, high temperature resistance and the like.

A 5L water replenishing tank 4 is also installed on the top of the water tank 1 so as to replenish the water tank 1 when necessary.

An adjustable tail support (not marked) is adopted below the vacuum tube 2 to support the vacuum tube 2, and after the vacuum tube 2 is assembled, a bottom box is screwed up to prop against the vacuum tube 2, so that the vacuum tube 2 does not fall down.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, i.e. the present invention is intended to cover all equivalent variations and modifications within the scope of the present invention.

Claims

1. The utility model provides a can raise the interior seal structure of solar vacuum tube of thermal efficiency, including water tank and vacuum tube, both install on the support, the water tank is including outer courage and inner bag, the inside intercommunication of vacuum tube and water tank, its characterized in that: the vacuum pipe is fixedly connected with the water tank through the rubber sleeve and the expansion pipe assembly, and the upper end of the vacuum pipe is embedded in the heat insulation layer between the inner container and the outer container; the rubber sleeve and the expansion pipe assembly extend out of one part in front of the upper end of the vacuum pipe, and the inner container of the water tank and the part of the rubber sleeve extending out of the upper end of the vacuum pipe are fixedly combined with the side face of the expansion pipe assembly in a sealing mode, so that the vacuum pipe is communicated with the expansion pipe assembly and the water tank through the rubber sleeve.

2. A solar vacuum tube inner sealing structure capable of improving heat efficiency according to claim 1, wherein: the rubber sleeve and the expansion pipe assembly comprise a rubber sleeve and an expansion pipe, the expansion pipe is fixed in the rubber sleeve in an inserting mode and forms an extrusion structure towards the outer side of the rubber sleeve, and the rubber sleeve is expanded to a certain degree.

3. The solar vacuum tube inner sealing structure capable of improving thermal efficiency according to claim 2, wherein: the rubber sleeve and the expansion pipe are pressed into the upper end of the vacuum pipe together to form an interference fit and sealing structure with the vacuum pipe, and the rubber sleeve and the expansion pipe are exposed to one section and penetrate through the inner container to be inserted into the water tank.

4. A solar vacuum tube inner sealing structure capable of improving heat efficiency according to claim 3, wherein: the rubber sleeve is a silica gel sleeve, and the outer side wall of the upper end of the rubber sleeve is provided with a circle of annular groove; the inner container is connected with the rubber sleeve through a clamping part formed by secondary flattening after punching and drawing, and the clamping part is clamped in the annular groove to form a sealing and fixing structure of the water tank and the rubber sleeve.

5. A solar vacuum tube inner sealing structure capable of improving heat efficiency according to claim 3, wherein: the outer side wall of the rubber sleeve is provided with a plurality of limit grooves, the inner side wall of the upper part of the vacuum tube is provided with a limit convex ring matched with the limit grooves, and the rubber sleeve is embedded into the limit grooves through the limit convex ring after being pressed into the vacuum tube to form a fixing and sealing structure of the rubber sleeve and the vacuum tube.

6. The solar vacuum tube inner sealing structure capable of improving thermal efficiency according to claim 2, wherein: the outer side wall of the expanding tube is provided with a plurality of rings of clamping grooves, the inner side wall of the rubber sleeve is provided with a clamping convex ring matched with the clamping grooves, and the expanding tube is clamped in the clamping grooves through the clamping convex ring after being pressed into the rubber sleeve to form a fixing and sealing structure of the expanding tube and the rubber sleeve.

7. The solar vacuum tube inner sealing structure capable of improving thermal efficiency according to claim 2, wherein: the lower end of the expansion tube is provided with a bracket which protrudes outwards, and the lower end of the rubber sleeve is pressed on the bracket.

8. A solar vacuum tube inner sealing structure capable of improving heat efficiency according to claim 1, wherein: a dustproof ring is arranged at the joint of the vacuum tube and the outer liner.

9. The solar vacuum tube inner sealing structure capable of improving thermal efficiency according to claim 2, wherein: the expansion pipe is made of temperature-resistant materials, including nylon, PPR or metal materials.