CN207162971U - A kind of groove type solar vacuum heat collection pipe with inserted rod - Google Patents
A kind of groove type solar vacuum heat collection pipe with inserted rod Download PDFInfo
- Publication number
- CN207162971U CN207162971U CN201720809478.8U CN201720809478U CN207162971U CN 207162971 U CN207162971 U CN 207162971U CN 201720809478 U CN201720809478 U CN 201720809478U CN 207162971 U CN207162971 U CN 207162971U
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- China
- Prior art keywords
- inserted rod
- heat absorption
- metal heat
- absorption tube
- tube
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- Withdrawn - After Issue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
Abstract
The utility model discloses a kind of groove type solar vacuum heat collection pipe with inserted rod, the vacuum heat collection pipe includes：Metal heat absorption tube, both ends are in vacuum state between metal heat absorption tube and glass enclosure tube by bellows and glass enclosure tube sealing-in；Exhaust outlet, located at one end of glass enclosure tube, for extracting the air between metal heat absorption tube and glass enclosure tube；Getter, it is placed between metal heat absorption tube and glass enclosure tube；Coating for selective absorption, it is overlying on the outer surface of metal heat absorption tube；Inserted rod, it is placed in the inside of metal heat absorption tube；Locking device, located at the both ends of inserted rod, for fixing the relative position between inserted rod and metal heat absorption tube.Heat-transfer fluid can be pressed to the higher metal heat absorption tube inwall of temperature by the utility model inserted rod from the metal heat absorption tube center that temperature is relatively low, flow velocity is larger, increased near wall region flow velocity and disturbance, reached the effect of enhanced heat exchange.In addition inserted rod can also reduce metal heat absorption tube heated bending, improve the reliability of thermal-collecting tube.
Description
Technical field
The utility model belongs to heat collection device field, more particularly to a kind of groove type solar vacuum heat collection pipe.
Background technology
In solar energy thermal-power-generating and solar energy high temperature heat utilization system, tower, paraboloid trough type, Fresnel etc. are various
Point focusing or line focus condenser system can produce tens kilowatts of high hot-fluids per square meter to upper megawatt per square meter, and above-mentioned
The transient state energy flow distribution that spot mode is incident upon on heat dump thermal-collecting tube heat absorbent surface is often that one side is distributed, therefore superelevation hot-fluid
Distributed pole on space-time is uneven.In current groove type solar heat utilization system, used vacuum heat collection pipe is light
Seamless steel pipe is slided, does not have enhanced heat exchange measure in pipe.For in usual heat exchanger the characteristics of endothermic tube thermally equivalent, at present
The fluid interchange in vacuum heat collection pipe used is very insufficient, heat exchange property extreme difference, while is easily formed in vacuum heat collection pipe
Great thermograde, easily cause following a few class failures：One, the metal heat absorption tube material overtemperature of vacuum heat collection pipe triggers machinery
Intensity, corrosion resistance decline, and then metal heat absorption tube breakage seepage occurs；Two, the heat-transfer fluid overtemperature in vacuum heat collection pipe
Conduction oil coking or fuse salt is triggered to decompose deterioration；Three, thermograde is excessive in vacuum heat collection pipe, triggers metal heat absorption tube excessive
Flexural deformation, so touch glass enclosure tube, glass enclosure tube high thermal stress or blow air over tremble during tap metal
Endothermic tube occurs to crush, and then causes the vacuum failure in vacuum heat collection pipe, and heat loss is increased sharply.
Improvement to vacuum heat collection pipe needs to consider following factor：First, it is necessary to relate in the processing technology of vacuum heat collection pipe
And high temperature resistant coating for selective absorption plated film, metal and glass sealing, vacuumize and vacuum safeguard etc. link.Second, vacuum
The demand of heat-transfer fluid emptying is also related in thermal-collecting tube, if heat-transfer fluid is fuse salt, fuse salt is also related to and is emptying
Failure, when fuse salt frozen block occurring in vacuum heat collection pipe, pipe internal solid fuse salt needs the problem of remolten is into liquid.Institute
With more feasible improved procedure, it is on the premise of current vacuum heat collection pipe resemblance is not changed, appropriateness is carried out in pipe
Improve.Chinese invention patent CN102425867A proposes a kind of groove type solar vacuum heat collection pipe with unilateral inner fin,
Metal heat absorption tube absorbs the inner surface setting inner fin of focused solar energy side, and inner fin becomes one with metal tube, passed through
The fin effect of inner fin, increase heat exchange area is realized whereby, realize the effect of enhanced heat exchange.Inner fin can also improve simultaneously
The bending strength of thermal-collecting tube.But seamless steel pipe of the manufacture with integrated inner fin needs special metal pipe processing technique.
Chinese invention patent CN101363664 discloses a kind of focussing groove type solar thermal absorber of single side multi-longitudinal whorl strengthened heat exchange,
Set in the inner tubal wall for the metal heat absorption tube for receiving optically focused hot-fluid side to pipe internal projection or recessed discontinuous indulge nest more
Device, strengthen intraductal heat exchange.It is particularly recessed but the measure does not act on for improving the integral bending of vacuum heat collection pipe
The how vertical nest structure gone, or even the anti-bending strength of vacuum heat collection pipe can be reduced.
Chinese invention patent CN105115175A discloses a kind of efficient low heat loss solar energy water heater of interpolation pipe convection.
Interpolation pipe enters outgoing flow channel in being formed in all-glass vacuum tube, and heat exchanging fluid flows into all-glass vacuum collection from interpolation pipe
Heat pipe, participate in heat exchange.Its structure, function and application scenario are different from the utility model.
Utility model content
The purpose of this utility model is to overcome prior art heat exchange property and mechanical strength low, and is drawn after improved structure
The shortcomings that manufacturing process is complicated, reliability is low and cost is high is sent out, proposes a kind of groove type solar vacuum heat collection pipe with inserted rod.
The utility model is simple in construction, can reasonably enhanced heat exchange, effectively avoid metal heat absorption tube and heat-transfer fluid emerged in operation
Overheating problem, increase vacuum heat collection pipe mechanical performance particularly bending strength, improve vacuum heat collection pipe global reliability,
Effectively improve conductivity of heat of the slot type vacuum heat collection pipe in solar parabolic through power generation system or solar energy high temperature heat utilization system
Energy and mechanical performance.
The technical solution of the utility model is as follows：
A kind of groove type solar vacuum heat collection pipe with inserted rod, including：Bellows 1, getter 2, exhaust outlet 3, glass
Vestlet 4, metal heat absorption tube 5, inserted rod 6, coating for selective absorption 8, metal and glass sealing 9 and locking device 10, wherein：
The both ends of metal heat absorption tube 5 by bellows 1 and the sealing-in of glass enclosure tube 4, wherein, metal heat absorption tube 5 and glass
It is in vacuum state between vestlet 4；
The getter 2 is placed between metal heat absorption tube 5 and glass enclosure tube 4, for maintaining metal heat absorption tube 5 and cloche
Vacuum state between pipe 4；
The exhaust outlet 3 is located at one end of the glass enclosure tube 4, for extracting between metal heat absorption tube 5 and glass enclosure tube 4
Air, formed vacuum state；
The outer surface of the metal heat absorption tube 5 is covered with coating for selective absorption 8；
The inserted rod 6 is placed in the inside of the metal heat absorption tube 5；
The locking device 10 is located at the both ends of inserted rod 6, is fixedly connected with inserted rod 6, for fixing inserted rod 6 and gold
Belong to the relative position between endothermic tube 5.
Alternatively, the inserted rod 6 is solid bar or hollow pipe.
Alternatively, the cross section of the inserted rod 6 is circular, ellipse or polygon, the cross section edge of the inserted rod 6
The axial consistent or scaled of inserted rod 6.
Alternatively, the smooth outer surface of the inserted rod 6 or provided with turbulence structure.
Alternatively, the locking device 10 includes multiple first pillars 11 and hoop 12, wherein：
The hoop 12 is fixedly connected with the outer surface of inserted rod 6；
The multiple first pillar 11 is radially installed in the outer surface of hoop 12, and its one end is fixed with hoop 12 to be connected
Connect, the other end is connected with the inner surface of metal heat absorption tube 5.
Alternatively, the length of each first pillar 11 is fixed, the equal length or unequal of different first pillars 11, or
The adjustable length of each first pillar 11.
Alternatively, in addition to support meanss 7, the support meanss 7 are arranged on the outside of inserted rod 6, in inserted rod 6 with
Between metal heat absorption tube 5, for controlling to adjust the gap between inserted rod 6 and metal heat absorption tube 5, to determine inserted rod 6 in gold
Belong to the confined state in endothermic tube 5.
Alternatively, confined state of the inserted rod 6 in metal heat absorption tube 5 includes but is not limited to：Inserted rod 6 is in metal
The assembling coaxial with metal heat absorption tube 5 of downward eccentric assembling, inserted rod 6 and inserted rod 6 are in metal heat absorption tube 5 in endothermic tube 5
Upward eccentric assembling.
Alternatively, the support meanss 7 include multiple second pillars 15, hoop 12 and multiple high temperature resistant balls 14, wherein：
The hoop 12 is fixedly connected with the outer surface of inserted rod 6；
The multiple second pillar 15 is radially installed in the outer surface of hoop 12, and its one end is fixed with hoop 12 to be connected
Connect, the other end is connected with the inner surface of metal heat absorption tube 5, to determine the position relationship between inserted rod 6 and metal heat absorption tube 5；
The high temperature resistant ball 14 is separately mounted to the other end of second pillar 15.
Alternatively, the length of each second pillar 15 is fixed, the equal length or unequal of different second pillars 15, or
The adjustable length of each second pillar 15.
The metal heat absorption tube of the utility model vacuum heat collection pipe produces high temperature when by non-uniform high-density hot-fluid, and
Temperature field non-uniform Distribution, circumferential directly heated side temperature is high, and opposite side temperature is low, forms larger thermograde, produces heat
Stress and thermal deformation.Heat-transfer fluid is flowed through inside metal heat absorption tube, is exchanged heat with metal heat absorption tube.Influenceed by flow boundary layer, nothing
The flow velocity of heat-transfer fluid is low near the metal heat absorption tube internal face of inserted rod, close to metal heat absorption tube center heat-transfer fluid
Flow velocity is high.In the case of identical heating hot-fluid and identical mass flow, when having insertion inserted rod in metal heat absorption tube, due to flowing into
The heat-transfer fluid of metal heat absorption tube is extruded by inserted rod, leaves the axis centre region of metal heat absorption tube, is pushed to close to metal
The internal face of endothermic tube, cryogen quickly flows close to heated metal heat absorption tube internal face region, it is achieved thereby that by force
Change the effect of heat exchange；Screw thread is carved with inserted rod surface, or sets uncontinuous spiral rib, or inserted rod cross section along inserted rod
Axially scaling change, can increase the disturbance in heat-transfer fluid flow process, further improve enhanced heat exchange effect.In addition,
Because inserted rod is only exchanged heat by heat-transfer fluid, temperature is relatively low and thermograde is smaller, therefore rigidity is preferably, passes through
Support meanss act on metal heat absorption tube, can effectively reduce the thermal deformation bending of metal heat absorption tube.
To sum up, groove type solar vacuum heat collection pipe of the utility model with inserted rod, without changing existing slot type vacuum collection
The contour structures and processing technology of heat pipe, processing is simple, and manufacturing cost is cheap.The utility model can be adjusted by support meanss
Downward eccentric, coaxial or upward bias of the inserted rod in metal heat absorption tube, effectively reduces metal heat absorption tube and heat transfer stream body temperature
Gradient is spent, heat transfer fluid exit temperature is improved, realizes efficient heat transfer, steady operation, technique effect easy to use.
Brief description of the drawings
Fig. 1 is the structural representation according to the groove type solar vacuum heat collection pipe with inserted rod of the embodiment of the utility model one
Figure；
Fig. 2 is the structural representation according to the locking device of the embodiment of the utility model one；
Fig. 3 is the structural representation according to the support meanss of the embodiment of the utility model one；
Fig. 4 be according to the slot type of the inserted rod of the embodiment of the utility model one downward eccentric assembling in metal heat absorption tube too
Solar energy vacuum thermal-collecting tube cross-sectional view；
Fig. 5 is true according to the inserted rod of the embodiment of the utility model one and groove type solar that metal heat absorption tube coaxially assembles
Empty set heat pipe cross-sectional view；
Fig. 6 be according to the slot type of the inserted rod of the embodiment of the utility model one upward eccentric assembling in metal heat absorption tube too
Solar energy vacuum thermal-collecting tube cross-sectional view；
Fig. 7 is prior art groove type solar vacuum heat collection pipe cross-section temperature distribution schematic diagram；
Fig. 8 is the groove type solar vacuum heat collection pipe according to the band inserted rod (eccentric downwards) of the embodiment of the utility model one
Cross-section temperature distribution schematic diagram；
Fig. 9 is transversal according to the groove type solar vacuum heat collection pipe of the band inserted rod (coaxial) of the embodiment of the utility model one
Face Temperature Distribution schematic diagram；
Figure 10 is the groove type solar vacuum heat-collecting according to the band inserted rod (eccentric upwards) of the embodiment of the utility model one
Pipe cross-section temperature distribution schematic diagram.
In figure：1 bellows, 2 getters, 3 exhaust outlets, 4 glass enclosure tubes, 5 metal heat absorption tubes, 6 inserted rods, 7 support meanss,
8 coating for selective absorption, 9 metals and glass sealing, 10 locking devices, 11 first pillars, 12 hoops, 13 first length adjustments
Device, 14 high temperature resistant balls, 15 second pillars, 16 second length adjusters.
Embodiment
For the purpose of this utility model, technical scheme and advantage is more clearly understood, below in conjunction with specific embodiment, and
Referring to the drawings, the utility model is further described.
Groove type solar vacuum heat collection pipe of the utility model with inserted rod, its feature is in the metal heat absorption tube of thermal-collecting tube
Portion is equipped with inserted rod, and the assembly relation between the inserted rod and metal heat absorption tube is constrained by support meanss and adjusted, and has locking
Device is fixed.
Fig. 1 is the structural representation according to the groove type solar vacuum heat collection pipe with inserted rod of the embodiment of the utility model one
Figure；Fig. 2 is the structural representation according to the locking device of the embodiment of the utility model one；Fig. 3 is real according to the utility model one
Apply the structural representation of the support meanss of example.As shown in Figure 1, Figure 2, Figure 3 shows, in the embodiment of the utility model one, in the band
The groove type solar vacuum heat collection pipe of plunger include bellows 1, getter 2, exhaust outlet 3, glass enclosure tube 4, metal heat absorption tube 5,
Inserted rod 6, coating for selective absorption 8, metal and glass sealing 9 and locking device 10, wherein：
The both ends of metal heat absorption tube 5 by bellows 1 and the sealing-in of glass enclosure tube 4, wherein, metal heat absorption tube 5 and glass
It is in vacuum state between vestlet 4；
The exhaust outlet 3 is located at one end of the glass enclosure tube 4, for extracting between metal heat absorption tube 5 and glass enclosure tube 4
Air, formed vacuum state；
The getter 2 is placed between the metal heat absorption tube 5 and glass enclosure tube 4, for maintaining metal heat absorption tube 5 and glass
Vacuum state between glass vestlet 4.
The outer surface of the metal heat absorption tube 5 is covered with coating for selective absorption 8；
The inserted rod 6 is placed in the inside of the metal heat absorption tube 5；
The metal is located at the both ends of glass enclosure tube 4 with glass sealing 9, for connecting bellows 1 and glass enclosure tube 4, shape
Into closed cavity.
The locking device 10 is located at the both ends of inserted rod 6, is fixedly connected with inserted rod 6, for fixing inserted rod 6 and gold
Belong to the relative position between endothermic tube 5.
In the embodiment of the utility model one, the inserted rod 6 can be solid bar or hollow pipe, if reality
Axle, its cross section can be the various shapes such as circle, ellipse, polygon, and if hollow pipe, it can be closed at both ends
Hollow pipe, its cross section can also be the various shapes such as circle, ellipse, polygon.
In the embodiment of the utility model one, the outer surface of the inserted rod 6 can be smooth, or provided with screw thread, continuous
The turbulence structures such as spiral ribs, intermittent spiral rib, the cross section of the inserted rod 6 is along the axially arranged to be consistent or in contracting of inserted rod
Put change.
Fig. 2 is shown in the thermal-collecting tube according to the embodiment of the utility model one, for fixing inserted rod 6 and metal heat absorption tube
The structural representation of the locking device 10 of relative position between 5.As shown in Fig. 2 the locking device includes multiple first pillars
11 and hoop 12, wherein：
The hoop 12 is fixedly connected with the outer surface of inserted rod 6；
The multiple first pillar 11 is radially installed in the outer surface of hoop 12, and its one end is fixed with hoop 12 to be connected
Connect, the other end is connected with the inner surface of metal heat absorption tube 5, to realize the lock of relative position between inserted rod 6 and metal heat absorption tube 5
It is fixed.
Wherein, the other end of first pillar 11 can be withstood on the inner surface of metal heat absorption tube 5, can also be inhaled with metal
The inner surface of heat pipe 5 is fixedly connected, for example is welded.
In the embodiment of the utility model one, the length of each first pillar 11 is fixed, but the length of different first pillars 11
Degree can be with equal, can also be unequal.
In the embodiment of the utility model one, the adjustable length of first pillar 11, in this embodiment, the locking
Device 10 also includes multiple first length adjusters 13, and first length adjuster 13 is sleeved on the outer of first pillar 11
Side, for changing the length of the first pillar 11, and the first pillar 11 is tightly withstood on into the outer surface of inserted rod 6 and absorbed heat with metal
Between the inner surface of pipe 5, the locking of relative position between inserted rod 6 and metal heat absorption tube 5 is realized.
In the embodiment of the utility model one, the groove type solar vacuum heat collection pipe with inserted rod also includes support dress
7 are put, the support meanss 7 are arranged on the outside of inserted rod 6, between inserted rod 6 and metal heat absorption tube 5, are adjusted for controlling
The gap between inserted rod 6 and metal heat absorption tube 5 is saved, to determine confined state of the inserted rod 6 in metal heat absorption tube 5, wherein,
Confined state of the inserted rod 6 in metal heat absorption tube 5 includes but is not limited to：Inserted rod 6 is eccentric downwards in metal heat absorption tube 5 to be filled
Match somebody with somebody, the coaxial assembling of inserted rod 6 and metal heat absorption tube 5 and the upward eccentric assembling in metal heat absorption tube 5 of inserted rod 6.Shown in Fig. 3
It is relative between inserted rod 6 and metal heat absorption tube 5 for supporting and adjusting in the thermal-collecting tube according to the embodiment of the utility model one
The structural representation of the support meanss 7 of position.As shown in figure 3, the support meanss 7 include multiple second pillars 15, hoop 12
With multiple high temperature resistant balls 14, wherein：
The hoop 12 is fixedly connected with the outer surface of inserted rod 6；
The multiple second pillar 15 is radially installed in the outer surface of hoop 12, and its one end is fixed with hoop 12 to be connected
Connect, the other end is connected with the inner surface of metal heat absorption tube 5, to determine the position relationship between inserted rod 6 and metal heat absorption tube 5；
The high temperature resistant ball 14 is separately mounted to the other end of second pillar 15.The high temperature resistant ball 14 can reduce
Frictional resistance, ensure that installation process of the inserted rod 6 in metal heat absorption tube 5 is smooth.
Wherein, the other end of second pillar 15 can be against on the inner surface of metal heat absorption tube 5, can also be inhaled with metal
The inner surface of heat pipe 5 is fixedly connected, for example is welded.
In the embodiment of the utility model one, the length of each second pillar 15 is fixed, but the length of different second pillars 15
Degree can be with equal, can also be unequal.
In the embodiment of the utility model one, the adjustable length of second pillar 15, in this embodiment, the locking
Device 10 also includes multiple second length adjusters 16, and second length adjuster 16 is sleeved on the outer of second pillar 15
Side, metal heat absorption is against for changing the length of the first pillar 15, and by the one end of the second pillar 15 equipped with high temperature resistant ball 14
The inner surface of pipe 5, realize downward eccentric, coaxial and upward eccentric three kinds of position relationships between inserted rod 6 and metal heat absorption tube 5
It is determined that.Fig. 4 is the slot type sun according to the inserted rod of the embodiment of the utility model one downward eccentric assembling in metal heat absorption tube
Can vacuum heat collection pipe cross-sectional view；Fig. 5 is coaxial according to the inserted rod and metal heat absorption tube of the embodiment of the utility model one
The groove type solar vacuum heat collection pipe cross-sectional view of assembling；Fig. 6 is existed according to the inserted rod of the embodiment of the utility model one
The groove type solar vacuum heat collection pipe cross-sectional view of upward eccentric assembling in metal heat absorption tube.
It is anti-by paraboloid groove type condenser when groove type solar vacuum heat collection pipe of the utility model with inserted rod works
Extremely strong can flow for penetrating focusing projects in the glass enclosure tube 4 of thermal-collecting tube first, and flowing for very little part is absorbed by glass enclosure tube 4,
Flowing for the overwhelming majority continues to pass through glass enclosure tube 4 in the form of light, further projects the selection of the outer surface of metal heat absorption tube 5
On property absorber coatings 8, by fully absorbing for coating for selective absorption 8, the heat energy of high temperature is produced, heat energy arrives in a manner of conducting
Up to inside metal heat absorption tube 5.Heat-transfer fluid flows through metal heat absorption tube 5, and heat convection, heat transfer stream occurs with metal heat absorption tube 5
Body is heated, and realizes the purpose for taking away heat energy.
Fig. 7 is shown in beam radia 1000W/ ㎡, and heat-transfer fluid fuse salt is with identical mass flow 1.176kg/s
Flow through in the prior art 6.77 meters opening paraboloid trough type vacuum heat collection pipe when, the temperature on the meter Chu cross sections of entrance 2
Distribution schematic diagram.Under the premise of Fig. 8 is identical hot-fluid and identical mass flow, using the utility model inserted rod in metal heat absorption tube
The groove type solar vacuum heat collection pipe cross-section temperature distribution schematic diagram of interior eccentric assembling downwards；Fig. 9 is identical hot-fluid and identical
Under the premise of mass flow, the groove type solar vacuum heat-collecting that is coaxially assembled in metal heat absorption tube using the utility model inserted rod
Pipe cross-section temperature distribution schematic diagram；Under the premise of Figure 10 is identical hot-fluid and identical mass flow, using the utility model interpolation
The groove type solar vacuum heat collection pipe cross-section temperature distribution schematic diagram of rod upward eccentric assembling in metal heat absorption tube.From Fig. 7,
Fig. 8, Fig. 9 and Figure 10 contrast are as can be seen that groove type solar vacuum heat collection pipe metal heat absorption of the utility model with inserted rod
The temperature maximum of pipe surface is reduced up to 30 degrees Celsius than common slot type solar vacuum heat-collecting pipe.Meanwhile three kinds of positions
In assembly relation, the thermograde on the surface of inserted rod 6 is minimum, shows that the temperature distortion of inserted rod 6 bends very little, rigidity can be effective
Ensure, can effectively support metal heat absorption tube 5, reduce the degree of the temperature distortion of metal heat absorption tube 5 bending, improve thermal-collecting tube
Overall performance.Inserted rod 6 diameter increase, the increased unfavorable factor of pressure drop can be brought, by optimization calculate, inserted rod 6 it is straight
The interior diameter ratio of footpath and metal heat absorption tube 5 can possess preferably comprehensive heat exchange property between 0.1 to 0.9.It is in addition, interior
The surface of plunger 6 increase screw thread, continuously or discontinuously spiral band, by the cross section of inserted rod be arranged to along inserted rod axially scale
The flow-disturbing measures such as change, can further strengthen the heat exchange property in thermal-collecting tube.
Particular embodiments described above, the purpose of this utility model, technical scheme and beneficial effect are carried out to enter one
Step describes in detail, should be understood that and the foregoing is only specific embodiment of the utility model, is not limited to this
Utility model, it is all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements done etc., it all should wrap
It is contained within the scope of protection of the utility model.
Claims (10)
- A kind of 1. groove type solar vacuum heat collection pipe with inserted rod, it is characterised in that the groove type solar vacuum heat collection pipe Including：Bellows (1), getter (2), exhaust outlet (3), glass enclosure tube (4), metal heat absorption tube (5), inserted rod (6), selectivity Absorber coatings (8), metal and glass sealing (9) and locking device (10), wherein：Metal heat absorption tube (5) both ends by bellows (1) and glass enclosure tube (4) sealing-in, wherein, metal heat absorption tube (5) with It is in vacuum state between glass enclosure tube (4)；The exhaust outlet (3) is located at one end of the glass enclosure tube (4), for extracting metal heat absorption tube (5) and glass enclosure tube (4) Between air, formed vacuum state；The getter (2) is placed between the metal heat absorption tube (5) and glass enclosure tube (4), for maintaining metal heat absorption tube (5) With the vacuum state between glass enclosure tube (4)；The outer surface of the metal heat absorption tube (5) is covered with coating for selective absorption (8)；The inserted rod (6) is placed in the inside of the metal heat absorption tube (5)；The locking device (10) is located at the both ends of inserted rod (6), is fixedly connected with inserted rod (6), for fixing inserted rod (6) With the relative position between metal heat absorption tube (5).
- 2. the groove type solar vacuum heat collection pipe according to claim 1 with inserted rod, it is characterised in that the inserted rod (6) it is solid bar or hollow pipe.
- 3. the groove type solar vacuum heat collection pipe according to claim 2 with inserted rod, it is characterised in that the inserted rod (6) cross section is circular, ellipse or polygon, the cross section of the inserted rod (6) along the axially consistent of inserted rod (6) or Scaled.
- 4. the groove type solar vacuum heat collection pipe according to claim 1 with inserted rod, it is characterised in that the inserted rod (6) smooth outer surface or provided with turbulence structure.
- 5. the groove type solar vacuum heat collection pipe according to claim 1 with inserted rod, it is characterised in that the locking dress Putting (10) includes multiple first pillars (11) and hoop (12), wherein：The hoop (12) is fixedly connected with the outer surface of inserted rod (6)；The multiple first pillar (11) is radially installed in the outer surface of hoop (12), its one end and the fixed company of hoop (12) Connect, the other end is connected with the inner surface of metal heat absorption tube (5).
- 6. the groove type solar vacuum heat collection pipe according to claim 5 with inserted rod, it is characterised in that each first The length of post (11) is fixed, the equal length or unequal of different first pillars (11), or the length of each first pillar (11) Spend adjustable.
- 7. the groove type solar vacuum heat collection pipe according to claim 1 with inserted rod, it is characterised in that also include support Device (7), the support meanss (7) are arranged on the outside of inserted rod (6), in inserted rod (6) and metal heat absorption tube (5) it Between, for controlling to adjust the gap between inserted rod (6) and metal heat absorption tube (5), to determine inserted rod (6) in metal heat absorption tube (5) confined state in.
- 8. the groove type solar vacuum heat collection pipe according to claim 7 with inserted rod, it is characterised in that the inserted rod (6) confined state in metal heat absorption tube (5) includes but is not limited to：Inserted rod (6) is eccentric downwards in metal heat absorption tube (5) Bias fills upwards in metal heat absorption tube (5) for assembling, inserted rod (6) assembling coaxial with metal heat absorption tube (5) and inserted rod (6) Match somebody with somebody.
- 9. the groove type solar vacuum heat collection pipe according to claim 7 with inserted rod, it is characterised in that the support dress Putting (7) includes multiple second pillars (15), hoop (12) and multiple high temperature resistant balls (14), wherein：The hoop (12) is fixedly connected with the outer surface of inserted rod (6)；The multiple second pillar (15) is radially installed in the outer surface of hoop (12), its one end and the fixed company of hoop (12) Connect, the other end is connected with the inner surface of metal heat absorption tube (5), to determine the position between inserted rod (6) and metal heat absorption tube (5) Relation；The high temperature resistant ball (14) is separately mounted to the other end of second pillar (15).
- 10. the groove type solar vacuum heat collection pipe according to claim 9 with inserted rod, it is characterised in that each second The length of pillar (15) is fixed, the equal length or unequal of different second pillars (15), or each second pillar (15) Adjustable length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720809478.8U CN207162971U (en) | 2017-07-06 | 2017-07-06 | A kind of groove type solar vacuum heat collection pipe with inserted rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720809478.8U CN207162971U (en) | 2017-07-06 | 2017-07-06 | A kind of groove type solar vacuum heat collection pipe with inserted rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207162971U true CN207162971U (en) | 2018-03-30 |
Family
ID=61712237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720809478.8U Withdrawn - After Issue CN207162971U (en) | 2017-07-06 | 2017-07-06 | A kind of groove type solar vacuum heat collection pipe with inserted rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207162971U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166753A (en) * | 2017-07-06 | 2017-09-15 | 常毅 | A kind of groove type solar vacuum heat collection pipe with inserted rod |
-
2017
- 2017-07-06 CN CN201720809478.8U patent/CN207162971U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107166753A (en) * | 2017-07-06 | 2017-09-15 | 常毅 | A kind of groove type solar vacuum heat collection pipe with inserted rod |
| CN107166753B (en) * | 2017-07-06 | 2023-07-18 | 常毅 | Groove type solar vacuum heat collecting tube with inner inserting rod |
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