CN202328869U - Line-focus solar reinforced thermal collecting pipe with compound degasifying device - Google Patents
Line-focus solar reinforced thermal collecting pipe with compound degasifying device Download PDFInfo
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- CN202328869U CN202328869U CN 201120464953 CN201120464953U CN202328869U CN 202328869 U CN202328869 U CN 202328869U CN 201120464953 CN201120464953 CN 201120464953 CN 201120464953 U CN201120464953 U CN 201120464953U CN 202328869 U CN202328869 U CN 202328869U
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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
Abstract
The utility model relates to a line-focus solar reinforced thermal collecting pipe with a compound degasifying device, which structurally integrates high temperature resistance, air-tightness, high efficiency and low cost, and adopts multiple degasifiers and mounting structures, so as to meet the requirements of solar heat power generation technology under high-medium temperature and fused salt and DSG heat transmission mode. The line-focus solar reinforced thermal collecting pipe is applicable to the high-temperature solar heat power generation, and belongs to the technical field of solar heat utilization.
Description
Technical field
The utility model relates to a kind of line-focusing solar that the compound device of cooling down is set and strengthens thermal-collecting tube; That its structure has fully been taken into account is high temperature resistant, air-tightness, high efficiency and requirement cheaply; On device construction, adopt multiple getter and mounting structure, with the solar energy thermal-power-generating specification requirement under high temperature in adapting to and employing fused salt and the DSG heat transfer pattern.This thermal-collecting tube is applicable to the high-temperature solar generating, belongs to the solar energy utilization technique field.
Background technology
At present; Getter that on the trough type solar power generation thermal-collecting tube, uses both at home and abroad and structure thereof are mainly according to application target difference to some extent; What Solel company used should be the getter of non-evapotranspiring property; Adopt the plane tabular project organization to increase inspiratory capacity, the metallic plate that getter is installed is close to the metal tube outer wall and is fixed, and the effect of getter such as its are in Chinese granted patent 03825785.8 described " inhaling the hydrogen agent ".That show use in the Chinese publication 200610080312.3 of Germany SCHOTT company also should be " non-evaporable getter (non-evaporable getter NEG) "; Do circular band and be installed between unloading bellows and the end cap, also be provided with " the hydrogen window " that adopt palladium metal simultaneously specially.But what the said firm was selected in actual production is the evaporable getter, and its structure is similar to the circulus of using in the full glass solar heat collection pipe, and will cool down to encircle through a clamp directly is fixed on the metal tube.Because seal, sealing materials that each enterprise adopts and the difference on the process for sealing cause the air-tightness of thermal-collecting tube and very big difference are arranged service life.In addition; Because influencing the bubble-tight factor of thermal-collecting tube also has a lot; Such as the degasification situation of metal material, the gas content in the rete, gas under the hot conditions discharges and the most outstanding at present; Then be the cracking and through the metal tube hydrogen problem of overflowing under hot conditions of heat-transfer working medium conduction oil, these problems all will directly influence thermal-collecting tube service life as can not get solving.For this reason, SCHOTT company has increased the container that contains gas krypton or xenon in 200610162523.1 patents, discharge rare gas through the high-frequency heating mode, mixes the reduction pyroconductivity in the hope of reaching with hydrogen.But see that from actual operating position above-mentioned two enterprises all also do not solve gas leakage and hydrogen infiltration problem slowly well.In a word, rationally using getter is to guarantee the thermal-collecting tube key technique in service life.
Chinese patent 01224848.7 has used the non-evaporable getter at first on the glass metal solar energy heat collection pipe; The inventor redevelops to this obtaining unique mandate back; In patent 200610076672.6 and 200710090246.2, except that the non-getter that evapotranspires (NEG) is used in continuity, also used evaporable getter (EG) simultaneously.But from case making, find; Though the barium aluminium nickel evaporable getter that adopts has the effect of adsorbing minimum gas preferably; But its maximum operation (service) temperature is limited to 350 degree, therefore in hot environment, have a strong impact on the life-span and the inspiratory effects of getter, but not also there is reversible phenomenon in the getter that evapotranspires (NEG) to hydrogen; Not only can not keep air-tightness if install improper or run into the baking of optically focused focal spot, aggravate hydrogen probably and discharge.Be further to improve stability and reliability, constantly dwindle the gap with external like product, the getter device of should be on above-mentioned patent basis line-focusing solar being strengthened thermal-collecting tube be optimized.
Summary of the invention
The utility model technical problem to be solved is to adopt multiple getter and textural association to improve stability and the reliability that line-focusing solar is strengthened thermal-collecting tube.
The alleged problem of the utility model is solved by following technical scheme:
The line-focusing solar that the compound device of cooling down is set is strengthened thermal-collecting tube and is cut pipe, metal inner pipe, metal end, iron nickel by glass outer tube, glass and can cut down part, unloading bellows, pipe connecting piece, the compound device of cooling down, blast pipe, spoiler, glass sealing material and form, and it is characterized in that: can send out the discharge mechanism that part, metal end, unloading bellows, pipe connecting piece form by iron nickel and be arranged on the thermal-collecting tube two ends; Discharge mechanism can be outer unloading or two kinds of unloading modes of interior unloading; Iron nickel can cut down part and glass outer tube or glass and cut Guan Yiduan direct heat sealing by fusing and connect; Iron nickel can cut down glass inner flange or the outward flange that part and glass outer tube or glass cut Guan Yiduan and implement plumbous hot-press sealing; Or iron nickel can cut down a Baltimore groove is set on the part, and glass cuts pipe and inserts in the Baltimore groove through the sealing-in of glass sealing material indirect hot melting; The welding of pipe connecting piece and metal inner pipe argon arc, metal inner pipe outer surface vacuum sputtering is high temperature resistant selective thermal absorber coatings; The compound device of cooling down is weldingly fixed on metal inner pipe or discharge mechanism or the metal end, and the position is chosen in blast pipe one side.
The said glass outer tube selection wire coefficient of expansion is 33 * 10
-7/ ℃ the high-boron-silicon glass pipe; High-boron-silicon glass also claims to send Simon Rex glass, and is very extensive in China's solar water heater sector application, and cost is also very low, though linear expansion coefficient is 33 * 10
-7/ ℃, be difficult to and domestic kovar alloy match materials, but its physical property is well suited for solar energy thermal-power-generating, be particularly suitable for plumbous hot-press sealing technology; Or the selection wire coefficient of expansion is (40-65) * 10
-7/ ℃ neutrality 5.0 Pyrex.
It is the glass short tube that forms according to instructions for use glass-cutting outer tube that said glass cuts pipe, and the purpose of cutting is in order to implement glass better and iron nickel can cut down the part sealing-in; Should pay attention to the destressing of annealing when adopting the direct process for sealing of hot melt; Cut Guan Yiduan at glass outer tube or glass when adopting plumbous hot-press sealing and make outward flange or inner flange, end face of flange is smooth.
Said iron nickel can cut down part one end inside or outward flanging and the welding of unloading bellows; Preferred iron nickel cobalt glass sealing alloy 4J29,4J44, linear expansion coefficient is (46-55) * 10 in the time of 20-450 ℃
-7/ ℃, consistent with the line expansion curve of neutral density glass outer tube; Or select 4J42,4J45, linear expansion coefficient is (40-75) * 10 in the time of 20-450 ℃
-7/ ℃ iron nickel kovar alloy; Wall thickness is advisable with 0.3-2mm; The pre-oxidation treatment that iron nickel can cut down part is to guarantee the bubble-tight critical process of sealing-in, must treat cautiously; Plumbous hot-press sealing should pay attention to can cutting down iron nickel the cleaning of part and glass flange, after rationally confirming sealing temperature, pressure, time, sealing-in atmosphere, guarantees to obtain enough sealing strengths and air-tightness.
The linear expansion coefficient of said glass sealing material is (40-65) * 10
-7/ ℃, cut pipe and iron nickel can cut down between the part between glass, softening and wandering temperature is 300-800 ℃; The low-melting-point glass powder lead oxide content of selecting is between 30-60%; Like the glass outer tube is that neutral 5.0 glass then can be selected the lead-free low-melting-point glass powder.
Said unloading ripple tube wave joint number is at the 2-20 ripple, and the bellows wall thickness is 0.18-0.3mm, wave height 5-16mm, pitch of waves 3-12mm, bellows inside nominal diameter 32-100mm; Anti-fatigue life should be greater than 30,000 times; Preferred SUS304,321 or SUS316,316L stainless steel material; Slip is 1.33 * 10 when being controlled at 120 ℃ of operating modes
-10Pa.m
3/ sec.
Said pipe connecting piece is the plate-like piece of central bore flange, and endoporus and metal inner pipe are complementary, the welding of turn-up portion and metal inner pipe, and planar section end and the welding of unloading bellows argon arc, material is SUS304,321 or SUS316,316L stainless steel, wall thickness is 0.3-2mm; In adopting during unloading structure pipe connecting piece be an end reducing, the tube-like piece of other end enlarging; Necking end and the welding of metal inner pipe argon arc, flared end and the welding of unloading bellows.
Said metal inner pipe inside nominal diameter is between 25-80mm; Wall thickness is between 0.3-13mm; Nominal pressure between 0.6-25MPa, preferred SUS304,321 or the ultra-supercritical boiler of SUS316,316L gapless stainless steel tube or high temperature resistant, intergranular corrosion resistance with XA704, TP347H, SUPER304H, TP310HCbN alloy seamless steel pipe; Metal inner pipe is a metal straight pipe, or bellows tube, or inner helix pipe, or outer spiral tube, or on metal straight pipe surface the luxuriant bulk wave pipe joint of regular bud.
Said spoiler is a stainless steel substrates, strikes out tail-likely, and an end flange point is welded on the metal inner pipe port inner wall, and the other end is suitably crooked with disturbance working medium fluid, one to three spoiler of each thermal-collecting tube welding; Or spoiler is designed to width rectangle or the square identical with the metal inner pipe diameter, and punched openings is respectively to the both sides flange in echelon in the centre, and the spoiler two ends are welded on the inwall of metal inner pipe one end, play the effect of two-way disturbance fluid; Spoiler is of value to destruction current stabilization layer, and then improves heat exchange efficiency, reduces thermal exposure and heat loss.
Said blast pipe is 33 * 10
-7/ ℃ high-boron-silicon glass pipe or neutral 5.0 borosilicate glass tubes, internal diameter 8-20mm, welding cuts on the pipe at glass outer tube or glass.
The said compound device of cooling down is meant the metal alloy that contains evaporable getter (EG) or non-evaporable getter (NEG) device of cooling down, and can be the ring of cooling down, the rod of cooling down, the sheet of cooling down of band stainless steel welding support; Said evaporable getter (EG) is a barium aluminium nickel getter, mainly adsorbs the minimum gas that glass and metal discharge under the condition of high temperature; The support solder joint is pressed close to the glass outer tube as far as possible, and is positioned on the metal inner pipe of blast pipe one side, to reduce the metal inner pipe high-temperature baking; Or the stainless steel stent of the ring of cooling down is welded on discharge mechanism one end, the minimum 50-100mm of stent length, and as far as possible away from unloading bellows and press close to the glass outer tube, high frequency activates back barium aluminium film should be clear bright; Non-evaporable getter (NEG) is selected zirconium alloy type or zircon China ink alloy-type, is installed in the other end of thermal-collecting tube, or on the metal inner pipe, or on the discharge mechanism; Stent length and points for attention and evaporable getter (EG) are identical; Because non-evaporable getter (NEG) inspiratory capacity is big, particularly the ability to hydrogen adsorption is strong than evaporable getter (EG), therefore the compound device of cooling down of different getter compositions is installed at the thermal-collecting tube two ends is had important function to keeping the heat-collecting pipe vacuum degree;
For further improving the heat-collecting pipe vacuum degree; Miniature compound ion pump of the non-getter that evapotranspires (Mini-Combination IonPumps with NEG) or getter combination pump (Ion/Getter Combination Pumps) also can have been selected built-in as the thermal-collecting tube device of cooling down; Owing to receive volume restrictions; The installation position selection discharge mechanism is on the metal end of outer unloading structure, and adopting the key of the ionic pump of cooling down is to prevent that the activated at getter from being possible to the influence of magnet steel.
The utility model uses evaporable getter (EG) and non-evaporable getter (NEG) to make the compound device of cooling down simultaneously; Because of parts few; Technology is simple; And select three kinds of different sealing by fusing structure and technologies according to material, can guarantee the vacuum and the service life of line-focusing solar reinforcement thermal-collecting tube.
Description of drawings
Fig. 1 is that the indirect sealing by fusing of the outer unloading of the utility model connects the compound device sketch map of cooling down
Fig. 2 is the compound device sketch map of cooling down of unloading hot-press sealing in the utility model
Fig. 3 is the compound device sketch map of cooling down of unloading in the utility model sealing by fusing connects
Fig. 4 is the miniature compound ion pump sketch map of the built-in non-getter that evapotranspires of the utility model
Wherein: 1 glass outer tube, 2 metal inner pipes, 3 iron nickel can cut down cool down device, 8 blast pipes, 9 glass of part, 4 unloading bellowss, 5 metal ends, 6 pipe connecting pieces, 7 evaporables and cut pipe, 10 spoilers, the 11 non-evaporables device of cooling down
The specific embodiment
1, selecting evaporable getter (EG) or non-evaporable getter (NEG) gettering material as the compound device of cooling down, can be the ring of cooling down, the rod of cooling down, the sheet of cooling down of band stainless steel welding support.
2, the evaporable getter is a barium aluminium nickel getter, mainly adsorbs the minimum gas that glass and metal discharge under the condition of high temperature; The support solder joint is pressed close to the glass outer tube as far as possible, and is positioned on the metal inner pipe of blast pipe one side, to reduce the metal inner pipe high-temperature baking.
3, the evaporable of band stainless steel stent is cooled down loops welded at discharge mechanism one end, and stent length is apart from the minimum 50-100mm of discharge mechanism, and away from unloading bellows and pressing close to the glass outer tube, high frequency activates back barium aluminium film should be in blast pipe one side as far as possible; Prevent that especially high frequency from activating the influence to the unloading bellows.
4, non-evaporable getter (NEG) is installed in the other end of thermal-collecting tube, or on the metal inner pipe, or on the discharge mechanism; Stent length and points for attention and evaporable getter (EG) are identical; Because non-evaporable getter (NEG) inspiratory capacity is big, particularly the ability to hydrogen adsorption is strong than evaporable getter (EG), therefore different getter devices is installed respectively at the thermal-collecting tube two ends is had important function to keeping the heat-collecting pipe vacuum degree;
5, be further to improve the heat-collecting pipe vacuum degree; Also can select the device of cooling down of the miniature compound ion pump of the non-getter that evapotranspires (Mini-Combination IonPumps with NEG) built-in; Because receiving ionic pump volume restrictions, installation site can only select discharge mechanism is on the metal end of outer unloading structure.Because therefore the non-evaporable getter need will prevent the influence of activated to magnet steel at activated under the vacuum condition in activation.
6, the vigor of getter mainly is on the sealing technology and the high-temperature degassing processing to material of thermal-collecting tube itself except the performance of self.Because the adsorbance of getter is limited after all, if gas leakage slowly takes place then can accelerate getter to lose efficacy, so above-mentioned about all playing material impact in sealing structure, technology, material, installation site etc. to the life-span of heat-collecting pipe vacuum degree and getter.
Claims (3)
1. the line-focusing solar that the compound device of cooling down is set is strengthened thermal-collecting tube and is cut pipe, metal inner pipe, metal end, iron nickel by glass outer tube, glass and can cut down part, unloading bellows, pipe connecting piece, the compound device of cooling down, blast pipe, spoiler, glass sealing material and form, and it is characterized in that: can send out the discharge mechanism that part, metal end, unloading bellows, pipe connecting piece form by iron nickel and be arranged on the thermal-collecting tube two ends; Discharge mechanism can be outer unloading or two kinds of unloading modes of interior unloading; Iron nickel can cut down part and glass outer tube or glass and cut Guan Yiduan direct heat sealing by fusing and connect; Iron nickel can cut down glass inner flange or the outward flange that part and glass outer tube or glass cut Guan Yiduan and implement plumbous hot-press sealing; Or iron nickel can cut down a Baltimore groove is set on the part, and glass cuts pipe and inserts in the Baltimore groove through the sealing-in of glass sealing material indirect hot melting; The welding of pipe connecting piece and metal inner pipe argon arc, metal inner pipe outer surface vacuum sputtering is high temperature resistant selective thermal absorber coatings; The compound device of cooling down is weldingly fixed on metal inner pipe or discharge mechanism or the metal end, and the position is chosen in blast pipe one side;
1) the said glass outer tube selection wire coefficient of expansion is 33 * 10
-7/ ℃ the high-boron-silicon glass pipe; Its physical property is well suited for solar energy thermal-power-generating, is particularly suitable for plumbous hot-press sealing technology; Or the selection wire coefficient of expansion is (40-65) * 10
-7/ ℃ neutrality 5.0 Pyrex;
2) to cut pipe be the glass short tube that forms according to instructions for use glass-cutting outer tube to said glass, and the purpose of cutting is in order to implement glass better and iron nickel can cut down the part sealing-in; Should pay attention to the destressing of annealing when adopting the direct process for sealing of hot melt; Cut Guan Yiduan at glass outer tube or glass when adopting plumbous hot-press sealing and make outward flange or inner flange, end face of flange is smooth;
3) said iron nickel can cut down part one end inside or outward flanging and the welding of unloading bellows; Preferred iron nickel cobalt glass sealing alloy 4J29,4J44, linear expansion coefficient is (46-55) * 10 in the time of 20-450 ℃
-7/ ℃, consistent with the line expansion curve of neutral 5.0 glass outer tubes; Or select 4J42,4J45, linear expansion coefficient is (40-75) * 10 in the time of 20-450 ℃
-7/ ℃ iron nickel kovar alloy; Wall thickness is advisable with 0.3-2mm; The pre-oxidation treatment that iron nickel can cut down part is to guarantee the bubble-tight critical process of sealing-in, must treat cautiously; Plumbous hot-press sealing should pay attention to can cutting down iron nickel the cleaning of part and glass flange, after rationally confirming sealing temperature, pressure, time, sealing-in atmosphere, guarantees to obtain enough sealing strengths and air-tightness;
4) linear expansion coefficient of said glass sealing material is (40-65) * 10
-7/ ℃, cut pipe and iron nickel can cut down between the part between glass, softening and wandering temperature is 300-800 ℃; The low-melting-point glass powder lead oxide content of selecting is between 30-60%; Like the glass outer tube is that neutral 5.0 glass then can be selected the lead-free low-melting-point glass powder;
5) said unloading ripple tube wave joint number is at the 2-20 ripple, and the bellows wall thickness is 0.18-0.3mm, wave height 5-16mm, pitch of waves 3-12mm, bellows inside nominal diameter 32-100mm; Anti-fatigue life should be greater than 30,000 times; Preferred SUS304,321 or SUS316,316L stainless steel material; Slip is 1.33 * 10 when being controlled at 120 ℃ of operating modes
-10Pa.m
3/ sec;
6) said pipe connecting piece is the plate-like piece of central bore flange; Endoporus and metal inner pipe are complementary, turn-up portion and metal inner pipe welding, planar section end and the welding of unloading bellows argon arc; Material is SUS304,321 or SUS316,316L stainless steel, and wall thickness is 0.3-2mm; In adopting during unloading structure pipe connecting piece be an end reducing, the tube-like piece of other end enlarging; Necking end and the welding of metal inner pipe argon arc, flared end and the welding of unloading bellows;
7) said metal inner pipe inside nominal diameter is between 25-80mm; Wall thickness is between 0.3-13mm; Nominal pressure between 0.6-25MPa, preferred SUS304,321 or the ultra-supercritical boiler of SUS316,316L gapless stainless steel tube or high temperature resistant, intergranular corrosion resistance with XA704, TP347H, SUPER304H, TP310HCbN alloy seamless steel pipe; Metal inner pipe is a metal straight pipe, or bellows tube, or inner helix pipe, or outer spiral tube, or on metal straight pipe surface the luxuriant bulk wave pipe joint of regular bud;
8) said spoiler is a stainless steel substrates, strikes out tail-likely, and an end flange point is welded on the metal inner pipe port inner wall, and the other end is suitably crooked with disturbance working medium fluid, one to three spoiler of each thermal-collecting tube welding; Or spoiler is designed to width rectangle or the square identical with the metal inner pipe diameter, and punched openings is respectively to the both sides flange in echelon in the centre, and the spoiler two ends are welded on the inwall of metal inner pipe one end, play the effect of two-way disturbance fluid; Spoiler is of value to destruction current stabilization layer, and then improves heat exchange efficiency, reduces thermal exposure and heat loss;
9) said blast pipe is 33 * 10
-7/ ℃ high-boron-silicon glass pipe or neutral 5.0 borosilicate glass tubes, internal diameter 8-20mm, welding cuts on the pipe at glass outer tube or glass.
2. the line-focusing solar that the compound device of cooling down is set according to claim 1 is strengthened thermal-collecting tube; It is characterized in that: the said compound device of cooling down is meant the metal alloy that contains evaporable getter (EG) and non-evaporable getter (NEG) device of cooling down, and can be the ring of cooling down, the rod of cooling down, the sheet of cooling down of band stainless steel welding support;
1) said evaporable getter (EG) is a barium aluminium nickel getter, mainly adsorbs the minimum gas that glass and metal discharge under the condition of high temperature; The support solder joint is pressed close to the glass outer tube as far as possible, and is positioned on the metal inner pipe of blast pipe one side, to reduce the metal inner pipe high-temperature baking; Or the stainless steel stent of the ring of cooling down is welded on discharge mechanism one end, the minimum 50-100mm of stent length, and as far as possible away from unloading bellows and press close to the glass outer tube, high frequency activates back barium aluminium film should be clear bright;
2) non-evaporable getter (NEG) is selected zirconium alloy type or zircon China ink alloy-type, is installed in the other end of thermal-collecting tube, or on the metal inner pipe, or on the discharge mechanism; Stent length and points for attention and evaporable getter (EG) are identical; Because non-evaporable getter (NEG) inspiratory capacity is big, particularly the ability to hydrogen adsorption is strong than evaporable getter (EG).
3. the line-focusing solar that the compound device of cooling down is set according to claim 1 is strengthened thermal-collecting tube; It is characterized in that: miniature compound ion pump (Mini-CombinationIonPumps with NEG) or the getter combination pump (Ion/Getter Combination Pumps) of selecting the built-in non-getter that evapotranspires is as the thermal-collecting tube device of cooling down, and the installation position selection discharge mechanism is on the metal end of outer unloading structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120464953 CN202328869U (en) | 2011-11-22 | 2011-11-22 | Line-focus solar reinforced thermal collecting pipe with compound degasifying device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120464953 CN202328869U (en) | 2011-11-22 | 2011-11-22 | Line-focus solar reinforced thermal collecting pipe with compound degasifying device |
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| CN202328869U true CN202328869U (en) | 2012-07-11 |
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|---|---|---|---|
| CN 201120464953 Expired - Lifetime CN202328869U (en) | 2011-11-22 | 2011-11-22 | Line-focus solar reinforced thermal collecting pipe with compound degasifying device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393093A (en) * | 2011-11-22 | 2012-03-28 | 张建城 | Line focus solar energy enhanced collector tube provided with composite getter device |
| CN104482286A (en) * | 2014-10-31 | 2015-04-01 | 双恒阀门有限公司 | Fused salt transfer valve |
| CN105258362A (en) * | 2015-10-13 | 2016-01-20 | 北京有色金属研究总院 | Suction material holding support for solar energy medium-high temperature evacuated collector tube |
| CN105890203A (en) * | 2015-01-23 | 2016-08-24 | 张建城 | Unloading structure and compound gettering device of line focusing solar reinforced heat collecting tube |
-
2011
- 2011-11-22 CN CN 201120464953 patent/CN202328869U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393093A (en) * | 2011-11-22 | 2012-03-28 | 张建城 | Line focus solar energy enhanced collector tube provided with composite getter device |
| CN104482286A (en) * | 2014-10-31 | 2015-04-01 | 双恒阀门有限公司 | Fused salt transfer valve |
| CN104482286B (en) * | 2014-10-31 | 2018-12-28 | 双恒阀门有限公司 | A kind of fused salt transhipment valve |
| CN105890203A (en) * | 2015-01-23 | 2016-08-24 | 张建城 | Unloading structure and compound gettering device of line focusing solar reinforced heat collecting tube |
| CN105258362A (en) * | 2015-10-13 | 2016-01-20 | 北京有色金属研究总院 | Suction material holding support for solar energy medium-high temperature evacuated collector tube |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120711 Effective date of abandoning: 20140702 |
|
| RGAV | Abandon patent right to avoid regrant |