CN201014788Y

CN201014788Y - Series connection type solar vacuum heat-collecting tube

Info

Publication number: CN201014788Y
Application number: CNU2007200351179U
Authority: CN
Inventors: 王伟强
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-15
Filing date: 2007-03-15
Publication date: 2008-01-30
Anticipated expiration: 2017-03-15

Abstract

The utility model relates to a tandem-type vacuum solar heat-collecting pipe, which has a seal cover in fixed connection at the orifice of a glass vacuum pipe, with a fixed seat, a spring, a mobile seat and a core pipe, wherein the fixed seat is a through pipe with a radial block shoulder and a through hole in the lower part; the mobile seat is a through pipe with spurs on one side at the top of the peripheral wall; the mobile seat is installed inside the fixed seat, and spurs of the mobile seat is positioned on one side of the nick of the fixed seat and corresponds to the water outlet of the seal cover; the core pipe is a sleeve pipe, top-sealed, with a shaft shoulder, and is inserted into the mobile seat and penetrates the fixed seat; the upper baffle ring installed on the core pipe is connected in a detachable manner to the mobile seat; a spring is socketed on the outer side of the fixed seat; the water inlet on the core pipe corresponds to the water inlet on the seal cover; the hollow space between the mobile seat and the fixed seat is communicated with the water outlet on the seal cover; bottom of the core pipe is connected with bottom of the glass vacuum pipe through a support pipe; bottom of the support pipe is communicated with the glass vacuum pipe, and functions to block the water path when the glass vacuum pipe is broken, therefore the heat-collecting system can be more reliable in operation.

Description

Series solar energy vacuum heat accumulating tube

Technical field

The utility model relates to a kind of solar energy utilization technique, especially relates to a kind of series solar energy vacuum heat accumulating tube.

Background technology

Present disclosed solar vacuum heat-collecting pipe has two big classes substantially, one class is small-sized direct insertion vacuum heat collection pipe, storage tank is arranged on the top of vacuum heat collection pipe, vacuum heat collection pipe and storage tank are and series operation, but vacuum heat collection pipe must be assisted on the shelf that is located at certain angle, and cold water enters in the vacuum heat collection pipe by gravity and heats, and again hot water is delivered to standpipe, and utilize heat to carry out self-loopa, circulate with this and heat water in the storage tank.Because this class vacuum heat collection pipe adopts glass to make, and has low cost of manufacture, the direct advantage of heat exchange, but it is poor to exist bearing capacity, the problem that vacuum heat collection pipe is frangible, and especially water tank can not separate with vacuum heat collection pipe, can't realize that large tracts of land is auxilliary and establish, can only be applicable to that single household family uses.Another kind of is indirect type heat exchange thermal-collecting tube, be provided with metal tube in the vacuum heat collection pipe, adopt heat by the heat-conducting medium in the heating metal pipe, though indirect type heat exchange thermal-collecting tube has improved bearing capacity, but the metal material in the vacuum heat collection pipe is to adopting the certain influence of the thermal efficiency, influence the thermal efficiency that solar energy utilizes greatly, and easily cause corrosion metal tube.

In fairly large solar energy centralized heat collection system, very easily damage because glass tube with vacuum pressure-bearing and resistance to frost are relatively poor, will make whole system out of service as a glass-vacuum tube breakage, the functional reliability of solar energy heat-collecting system is not high.In order to ensure solar energy heat-collecting system reliability of operation, present thermal-collecting tube is that metallic water pipe is set in glass-vacuum tube, solar heat is carried out thermal-arrest by round-about way, so solar energy centralized heat collection system ubiquity cost height, adopts the low problem of the thermal efficiency.Though metal fever tubular type thermal-collecting tube can not influence the operation of heat-collecting system after any glass-vacuum tube breakage, but because the metallic water pipe in the vacuum heat collection pipe after the fragmentation is exposed in the atmospheric environment, can influence the thermal efficiency of adopting of whole system greatly to the atmospheric environment heat release.

Summary of the invention

The purpose of this utility model provides a kind of after glass-vacuum tube generation breakage, by the displacement of core pipe and sliding seat, blocks the water route in this glass-vacuum tube of turnover, improves the series solar energy vacuum heat accumulating tube of solar energy heat-collecting system operational reliability.

The utility model technical scheme for achieving the above object is, a kind of series solar energy vacuum heat accumulating tube, comprise glass-vacuum tube and capping, it is characterized in that: described capping with water inlet and delivery port is fixedly connected on the port part of glass-vacuum tube, holder, spring, sliding seat and core pipe are installed in the capping, are installed in holder in the capping and are and have the siphunculus that shoulder block radially and bottom have through hole; Described sliding seat is the siphunculus that perisporium top one side is provided with protruding wall, and sliding seat can axially movablely be installed in the holder, and the protruding wall of sliding seat is positioned at holder breach one side and corresponding with the delivery port of capping; Described core pipe is to bind and top has the sleeve pipe of the shaft shoulder, the core pipe is inserted on the sliding seat and passes holder, and the upper baffle ring that is installed on the core pipe is connected with sliding seat is detachable, its lower end of spring that is sleeved on the holder outside withstands on the lower baffle ring that is fixed in the core pipe, the spring upper end withstands on the periphery wall of holder, and the water inlet on the tube wall of core pipe top is corresponding with the water inlet in the capping; Cavity between sliding seat and the holder communicates with the delivery port in the capping, and core pipe bottom is connected bottom glass-vacuum tube by support column, and the exterior of the bottom of support column or bottom and support column.

The utility model is equipped with capping at the port of glass-vacuum tube, and holder is installed in the capping, spring, sliding seat and core pipe, when the glass-vacuum tube normal operating conditions, pass through holder, sliding seat and core pipe, with water from the core pipe, support column is directed into and adopts heat in the glass-vacuum tube, water after being heated is then discharged from the delivery port of capping by the cavity between holder and the sliding seat, owing to enter water inlet and water outlet mutually noninterfere in the glass-vacuum tube, be series-mode frame, therefore after many vacuum heat collection pipe serial connections, can realize the centralized heat collection of solar energy, and can make the solar energy heat-collecting system carry out forced circulation operation, adopt the thermal efficiency and increase substantially.The utility model is owing to kept direct insertion thermal-arrest mode; keep glass-vacuum tube to reach the higher thermal efficiency of adopting; because the pressure-bearing metal pipe need not be set in vacuum tube; and greatly reduce manufacturing cost and use cost; especially after glass-vacuum tube generation breakage; because the relative position of support column and glass-vacuum tube changes; make spring reset rapidly; under the effect of spring and hydraulic pressure; core pipe and sliding seat move down with holder and are tightly connected; block water inlet on the core pipe and the cavity between sliding seat and the holder; stop to supply water to the broken glass vacuum tube; adopt heat; realize protection automatically; the water inlet that enters in the capping is then directly flowed out from core pipe top from its delivery port, leads to next root glass-vacuum tube, can not influence the thermal efficiency of adopting of heat-collecting system owing to institute's exposed portions in the damaged glass-vacuum tube; can guarantee that the solar energy heat-collecting system normally moves, and improve the operational reliability of solar energy heat-collecting system greatly.

Description of drawings

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the sectional structure schematic diagram of the A-A of Fig. 1.

Fig. 3 is the sectional structure schematic diagram of the B-B of Fig. 2.

Fig. 4 is the structural representation after the glass-vacuum tube breakage.

Fig. 5 is the perspective view of holder.

Fig. 6 is the perspective view of sliding seat.

Fig. 7 is the perspective view of core pipe.

The 1-capping, 1-1-water inlet, 1-2-delivery port, 2-clamp nut, 3-glass-vacuum tube, the 4-sliding seat, the protruding wall of 4-1-, 4-2-locating shaft, 4-3-annular groove, 5-core pipe, the 5-1-water inlet, the 5-2-groove, the 5-3-shaft shoulder, 5-4-lacks the limit, and 5-5-is notch radially, the 6-sealing ring, 7-upper baffle ring, 8-sealing ring, 9-holder, 9-1-through hole, the 9-2-breach, 9-3-is shoulder block radially, 9-4-annular groove, 10-spring, the 11-sealing gasket, 12-lower baffle ring, 13-jump ring, 14-support column.

The specific embodiment

Series solar energy vacuum heat accumulating tube of the present utility model comprises glass-vacuum tube 3 and capping 1.See that capping 1 shown in Fig. 1～3 has water inlet 1-1 and delivery port 1-2, capping 1 is screwed on the clamp nut 2, be provided with sealing gasket 11 between glass-vacuum tube 3 and capping 1 and the clamp nut 2,, capping 1 be fixedly connected on the port part of glass-vacuum tube 3 by the frictional resistance of sealing gasket 11.The utility model is equipped with holder 9, spring 10, sliding seat 4 and core pipe 5 in capping 1, see that holder of the present utility model 9 shown in Figure 5 is to have the siphunculus that shoulder block 9-3 radially and bottom have through hole, this radially the endoporus of shoulder block 9-3 and capping 1 match, holder 9 is fixedly mounted in the capping 1, the bottom of holder 9 is for just tubaeform, the perisporium of holder 9 middle and lower parts is arranged with through hole 9-1, makes glass-vacuum tube 3 interior water enter the top of holder 9 from this through hole 9-1.The inner face of holder 9 is provided with annular groove 9-4, and sealing ring 8 is installed in the annular groove 9-4, after sliding seat 4 moves down, under the effect of hydraulic pressure and spring 10, makes sliding seat 4 and holder 9 realize sealing by sealing circle 8.See shown in Figure 6, sliding seat 4 of the present utility model is siphunculus that perisporium top one side is provided with protruding wall 4-1, sliding seat 4 can axially movablely be installed in the holder 9, the protruding wall 4-1 of sliding seat 4 is positioned at breach 9-2 one side of holder 9 and corresponding with the delivery port 1-2 of capping 1, when glass-vacuum tube 3 operate as normal, this breach 9-2 blocks the top of the delivery port 1-2 in the capping 1, the inner face of sliding seat 4 also is provided with annular groove 4-3, sealing ring 6 is installed in the annular groove 4-3, makes core pipe 5 and sliding seat 4 realize sealing by sealing circle 6.See shown in Figure 7, core pipe 5 of the present utility model is to bind and top has the sleeve pipe of shaft shoulder 5-3, core pipe 5 is inserted on the sliding seat 4 and passes holder 9, be installed in

upper baffle ring

7 and 4 detachable connections of sliding seat on the core pipe 5, when glass-vacuum tube 3 operate as normal, by this upper baffle ring 7 sliding seat 4 is connected with core pipe 5, and after glass-vacuum tube 3 breakages, because core pipe 5 does not have the supporting of support column 14, under the effect of hydraulic pressure and spring 10, after sliding seat 4 and holder 9 sealed, core pipe 5 continued to move down, 4 of sliding seat break away from upper baffle ring 7, and core pipe 5 is sealed on the sliding seat 4 reliably.For sliding seat 4 and holder 9 can not produced relative rotation, see Fig. 1～3 and shown in Figure 7, sliding seat 4 is provided with axial locating shaft 4-2 along its periphery, the shaft shoulder 5-3 of core pipe 5 is provided with the groove 5-2 that matches, also be provided with the scarce limit 5-4 that the protruding wall 4-1 with sliding seat 4 matches on the shaft shoulder 5-3 of core pipe 5, be convenient to rapid location.See shown in Figure 7ly, also establish a notch 5-5 radially on the shaft shoulder 5-3 of core pipe 5, after breakages took place glass-vacuum tube 3, core pipe 5 tops can be separated rapidly with capping 1 inner face, and core pipe 5 is moved down.See shown in Fig. 1～3, the utility model also is set with spring 10 in holder 9 outsides, its lower end of spring 10 withstands on the lower baffle ring 12 that is fixed in core pipe 5, spring 10 upper ends withstand on the periphery wall of holder 9, water inlet 5-1 on the core pipe 5 top tube walls is corresponding with the water inlet 1-1 in the capping 1, when glass-vacuum tube 3 just often, water outlet imports in the glass-vacuum tube 3 by the water inlet 5-1 on the core pipe 5, and can not import the delivery port 1-2 place of capping 1, cavity between sliding seat 4 and the holder 9 communicates with the delivery port 1-2 in the capping 1, water after the heating is imported delivery port 1-2 by this cavity to be delivered to and is responsible for or next root glass-vacuum tube continues to adopt heat, owing to enter the fixing flow passage in water edge in the glass-vacuum tube 3, the hot and cold water mutually noninterfere, in a glass-vacuum tube, make current form the series flow structure, can carry out forced circulation and adopt heat, collecting efficiency is reached maximization.See shown in Fig. 2,3, core pipe 5 bottoms are connected with glass-vacuum tube 3 bottoms by support column 14, this support column 14 can directly be connected with the bottom of glass-vacuum tube 3, also can connect by a supporting member, the exterior of the bottom of support column 14 or bottom and support column 14 will be intake and be heated in support column 14 importing glass-vacuum tubes 3.Support column 14 of the present utility model can adopt one or more segmentation to peg graft and form, the bottom of support column 14 is provided with a plurality of radial direction through hole, or the bottom surface of support column 14 has the radial slot mouth, support column 14 and its pipe are interlinked to the outside, and the jump ring 13 or the web plate that withstand on glass vacuum tube 3 tube walls are bearing on the tube wall of support column 14.

The utility model is for reducing the stifled phenomenon of gas in the glass-vacuum tube, the center line homonymy biasing of the water inlet 1-1 in the capping 1 and the axis of delivery port 1-2 and capping 1.

See shown in Fig. 2～4, when capping 1 is installed in glass-vacuum tube 3 ports, support column 14 withstands core pipe 5 and moves up until the inner face that compresses capping 1, upper baffle ring on the core pipe 57 drives sliding seat 4 and is moved upwards up to desired location simultaneously, at this moment, water inlet 1-1, water inlet 5-1 core pipe 5 on of water from the capping 1 enters in the core pipe 5 and flows into support column 14, again from the bottom of support column 14 or the bottom enter in the glass-vacuum tube 3 and adopt heat.After glass-vacuum tube 3 breakages, because support column 14 no longer plays supporting role, core pipe 5 moves down; and drive sliding seat 4 and move down, and block its water inlet 5-1, simultaneously under the effect of hydraulic pressure and spring 10; core pipe 5, sliding seat 4 are sealed mutually with holder 9, and realize current cutting protection.

Claims

1. series solar energy vacuum heat accumulating tube, comprise glass-vacuum tube (3) and capping (1), it is characterized in that: described capping (1) with water inlet (1-1) and delivery port (1-2) is fixedly connected on the port part of glass-vacuum tube (3), holder (9), spring (10), sliding seat (4) and core pipe (5) are installed in the capping (1), are installed in holder (9) in the capping (1) and are and have the siphunculus that shoulder block (9-3) radially and bottom have through hole; Described sliding seat (4) is the siphunculus that perisporium top one side is provided with protruding wall (4-1), sliding seat (4) can axially movablely be installed in the holder (9), and the protruding wall (4-1) of sliding seat (4) is positioned at breach (9-2) side of holder (9) and corresponding with the delivery port (1-2) of capping (1); Described core pipe (5) is to bind and top has the sleeve pipe of the shaft shoulder (5-3), core pipe (5) is inserted into sliding seat (4) and goes up and pass holder (9), be installed in upper baffle ring (7) and detachable connection of sliding seat (4) on the core pipe (5), its lower end of spring (10) that is sleeved on holder (9) outside withstands on the lower baffle ring (12) that is fixed in core pipe (5), spring (10) upper end withstands on the periphery wall of holder (9), and the water inlet (5-1) on the tube wall of core pipe (5) top is corresponding with the water inlet (1-1) in the capping (1); Cavity between sliding seat (4) and the holder (9) communicates with the delivery port (1-2) in the capping (1), core pipe (5) bottom is connected the exterior of the bottom of support column (14) or bottom and support column (14) by support column (14) with glass-vacuum tube (3) bottom.

2. series solar energy vacuum heat accumulating tube according to claim 1 is characterized in that: the bottom of described holder (9) is for just tubaeform, and the perisporium of holder (9) middle and lower part is arranged with through hole (9-1).

3. series solar energy vacuum heat accumulating tube according to claim 2 is characterized in that: the inner face of described sliding seat (4) is provided with annular groove (4-3), and sealing ring (6) is installed in the annular groove (4-3).

4. series solar energy vacuum heat accumulating tube according to claim 1 is characterized in that: described sliding seat (4) is provided with axial locating shaft (4-2) along its periphery, and the shaft shoulder (5-3) of core pipe (5) is provided with the groove (5-2) that matches.

5. series solar energy vacuum heat accumulating tube according to claim 1 is characterized in that: the shaft shoulder (5-3) of described core pipe (5) also is provided with the scarce limit (5-4) that the protruding wall (4-1) with sliding seat (4) matches.

6. series solar energy vacuum heat accumulating tube according to claim 1 is characterized in that: also have radially notch (5-5) on the shaft shoulder (5-3) of described core pipe (5).

7. series solar energy vacuum heat accumulating tube according to claim 1 is characterized in that: the inner face of described holder (9) is provided with annular groove (9-4), and sealing ring (8) is installed in the annular groove (9-4).

8. series solar energy vacuum heat accumulating tube according to claim 1 is characterized in that: described capping (1) is screwed on the clamp nut (2), and is provided with sealing gasket (11) between glass-vacuum tube (3) and capping (1) and the clamp nut (2).

9. series solar energy vacuum heat accumulating tube according to claim 1 is characterized in that: the center line homonymy biasing of the water inlet (1-1) in the described capping (1) and the axis of delivery port (1-2) and capping (1).

10. series solar energy vacuum heat accumulating tube according to claim 1 is characterized in that: described support column (14) segmentation is pegged graft, and the jump ring (13) or the web plate that withstand on glass vacuum tube (3) tube wall are bearing on the tube wall of support column (14).