CN212870282U - Emergency temperature reduction device of heat collector of groove type photo-thermal power generation system - Google Patents
Emergency temperature reduction device of heat collector of groove type photo-thermal power generation system Download PDFInfo
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- CN212870282U CN212870282U CN202021424737.3U CN202021424737U CN212870282U CN 212870282 U CN212870282 U CN 212870282U CN 202021424737 U CN202021424737 U CN 202021424737U CN 212870282 U CN212870282 U CN 212870282U
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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
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Abstract
The utility model discloses an urgent attemperator of slot type solar-thermal power generation system heat collector, heat collector include a plurality of light focusing grooves that connect through the heat pipe, and this urgent attemperator includes the desuperheater body, and the desuperheater body is the tubular structure, this internal nozzle that adjusts the temperature that is equipped with of desuperheater, the both ends of desuperheater body are equipped with the connector respectively, and the both ends of desuperheater body are connected with the heat pipe of heat collector through the connector respectively, and the nozzle that adjusts the temperature passes through the pipeline to be connected with an governing valve, and the governing valve is connected with a stop valve again, and the low temperature medium injection pipeline is connected to. The utility model discloses can be when the condition of heat pipe overtemperature or cutout appears, inject the low temperature medium into the desuperheater body through the nozzle that adjusts the temperature, and then make the heat-conducting medium misce bene in low temperature medium and the heat pipe through the desuperheater body to reach the effect of promptly cooling, prevent that the overtemperature's problem from appearing in the heat collector, avoid the emergence of accident, guarantee slot type solar-thermal power generation system's normal operating.
Description
Technical Field
The utility model relates to a solar-thermal power generation technical field, in particular to urgent attemperator of slot type solar-thermal power generation system heat collector.
Background
The trough type photo-thermal power generation system is a solar thermal power generation system. A heat collector of the groove type photo-thermal power generation system consists of a groove type paraboloid light-gathering reflector group, sunlight is focused on a vacuum heat conduction pipe in the center of a paraboloid, a heat conduction medium in the heat conduction pipe is heated, solar energy is converted into heat energy, and then the heat energy is converted into heat energy to heat water to generate superheated steam to drive a steam turbine to generate power. The groove-shaped polished surface condensing reflector group is formed by connecting a plurality of condensing grooves. A schematic of a trough-type solar thermal power generation system is shown in fig. 1.
For the trough-type power station, the heat-conducting medium flows in the heat-conducting pipes 12 along the arrangement direction of the light-gathering troughs 11, and continuously absorbs the energy brought by the sunlight reflected by the light-gathering troughs, so that the temperature of the medium is gradually increased, therefore, in order to fully heat the heat-conducting medium in the heat collectors and convert the solar energy as much as possible to generate heat, usually, a group of trough-type heat collectors is connected in series to be as long as several kilometers, and then a plurality of groups of heat collectors are arranged in parallel to form a whole, which is called as a light-gathering and heat-collecting system of the trough-type phototherm.
The connection length of a trough type heat collector of the light-gathering and heat-collecting system is longer, the diameter of a heat conduction pipe is relatively smaller, and the condition that a heat conduction medium in the heat conduction pipe of the heat collector flows unevenly or is cut off frequently occurs in actual operation, so that the phenomenon that the heat conduction pipe of the heat collector is over-heated seriously is caused; the reasons for this phenomenon are various, and it is possible that the heat-conducting medium in the heat-conducting pipe has impurities to cause pipe blockage, or that the flow rate of the heat-conducting medium in the pipe is slow to generate laminar flow, or that the resistance design of several parallel groups of heat collectors has deviation to cause non-uniform flow field in the heat-conducting pipe; the different flow rate in each heat conduction pipe makes the near-end medium temperature not reach the design temperature, and the far-end medium overtemperature condition may occur. And when the heat pipe appeared the cutout, the heat pipe of cutout point low reaches can empty pipe operation, and the solar heat energy of light gathering groove gathering this moment can not in time be taken away through the medium, can make the temperature of heat pipe more and more high, can even blow the heat pipe when serious, and this is very dangerous to the thermal-arrest field device, can produce great incident.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an object of the utility model is to provide an urgent attemperator of slot type solar-thermal power generation system heat collector can effectively solve the problem that slot type solar-thermal power generation system's heat collector overtemperature, guarantees whole power generation system's normal operating.
For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:
the utility model provides an urgent attemperator of slot type solar-thermal power generation system heat collector, the heat collector include a plurality of light gathering grooves that connect through the heat pipe, and this urgent attemperator includes the desuperheater body, and this desuperheater body is tubular structure, this internal nozzle that adjusts the temperature that is equipped with of desuperheater, the both ends of desuperheater body are equipped with the connector respectively, and the both ends of desuperheater body are connected with the heat pipe of heat collector through the connector respectively, the nozzle that adjusts the temperature passes through the pipeline and is connected with an governing valve, and the governing valve is connected with a stop valve again, and the low temperature medium injection pipeline is.
Furthermore, the outside of connector is equipped with the sealing washer to seal the connection position of connector and heat pipe, can effectively prevent that the medium from leaking in the junction.
Furthermore, a check valve is connected between the regulating valve and the temperature regulating nozzle, so that the medium in the heat conduction pipe can be effectively prevented from flowing back.
Furthermore, a filter is arranged on a pipeline between the stop valve and the regulating valve, so that impurities in the low-temperature medium can be effectively filtered.
Further, the tempering nozzle has a conical medium nozzle opening.
Further, the emergency temperature reduction device is arranged between the two light gathering grooves.
Furthermore, the low-temperature medium injection pipelines of the plurality of emergency temperature reduction devices are connected in parallel and are respectively connected with the low-temperature medium main pipeline.
The utility model has the advantages that: the utility model discloses can be when the condition of heat pipe overtemperature or cutout appears, inject the low temperature medium into the desuperheater body through the nozzle that adjusts the temperature, and then make the heat-conducting medium misce bene in low temperature medium and the heat pipe through the desuperheater body to reach the effect of promptly cooling, prevent that the overtemperature's problem from appearing in the heat collector, avoid the emergence of accident, guarantee slot type solar-thermal power generation system's normal operating.
Drawings
Fig. 1 is a schematic view of a trough-type solar thermal power generation system.
Fig. 2 shows an emergency desuperheating device of the trough-type solar-thermal power generation system heat collector of the present invention.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Fig. 2 shows a preferred embodiment of an emergency desuperheater of a trough type solar-thermal power generation system heat collector, wherein the heat collector comprises a plurality of light-collecting troughs connected by heat pipes, the emergency desuperheater comprises a desuperheater body 1, and the desuperheater body 1 is of a cylindrical tubular structure; a temperature adjusting nozzle 2 is arranged in the desuperheater body 1, and the temperature adjusting nozzle 2 is provided with a conical medium nozzle; the two ends of the desuperheater body 1 are respectively provided with a connector 3, and the two ends of the desuperheater body 1 are respectively connected with the heat conduction pipes of the heat collector through the connectors 3; the temperature adjusting nozzle 2 is connected with an adjusting valve 4 through a pipeline, the adjusting valve 4 is connected with a stop valve 5, and the stop valve 5 is connected with a low-temperature medium injection pipeline.
The outer side of the connector 3 is provided with a sealing ring 6 to seal the connection position of the connector 3 and the heat conduction pipe, so that the heat conduction medium or the low-temperature medium can be effectively prevented from leaking at the connection position.
In order to effectively prevent the heat-conducting medium in the heat-conducting pipe from flowing back, a check valve 7 is also connected between the regulating valve 4 and the temperature-regulating nozzle 2.
And a filter 8 is also arranged on a pipeline between the stop valve 5 and the regulating valve 4, and the filter 8 can effectively filter impurities in the low-temperature medium. In this embodiment, the filter is a screen.
Mounting position of the emergency desuperheating device: an emergency temperature reduction device can be arranged at every other light gathering groove (an emergency temperature reduction device is arranged between every two adjacent light gathering grooves), or an emergency temperature reduction device can be arranged at every other two light gathering grooves, or an emergency temperature reduction device can be arranged at every other three or more light gathering grooves.
The low-temperature medium injection pipelines of the emergency temperature reduction devices arranged in the groove type photo-thermal power generation system are connected in parallel and are respectively connected with the low-temperature medium main pipeline. The low-temperature medium is shunted to each low-temperature medium injection pipeline after passing through the low-temperature medium main pipeline and then flows into the corresponding emergency temperature reduction device.
Each urgent attemperator installation among the slot type light and heat power generation system finishes the back, open corresponding stop valve 5, in case the condition that the heat pipe overtemperature or cut off appears, governing valve 4 can open automatically, the low temperature medium that the low temperature medium pours into in the pipeline loops through stop valve 5, filter 8, behind governing valve 4 and the check valve 7, spout via temperature adjusting nozzle 2 again, in desuperheater body 1, the low temperature medium with get into the heat conducting medium misce bene of desuperheater body via the heat pipe, in order to reach the effect of urgent cooling, prevent that the phenomenon of overtemperature from appearing in the heat collector, avoid the emergence of accident, guarantee slot type light and heat power generation system's normal operating. The temperature regulating valve in the emergency temperature reducing device can regulate the flow of the injected low-temperature medium according to the temperature condition of the heat conducting pipe.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. The utility model provides an urgent attemperator of slot type solar-thermal power generation system heat collector, heat collector include a plurality of light collecting grooves through the heat pipe connection, its characterized in that: the emergency desuperheater comprises a desuperheater body, the desuperheater body is of a tubular structure, a temperature adjusting nozzle is arranged in the desuperheater body, connectors are arranged at two ends of the desuperheater body respectively, two ends of the desuperheater body are connected with heat conduction pipes of a heat collector through the connectors respectively, the temperature adjusting nozzle is connected with an adjusting valve through a pipeline, the adjusting valve is connected with a stop valve, and the stop valve is connected with a low-temperature medium injection pipeline.
2. The emergency desuperheating device of a trough photo-thermal power generation system heat collector of claim 1, wherein: and a sealing ring is arranged on the outer side of the connector to seal the connecting position of the connector and the heat conducting pipe.
3. The emergency desuperheating device of a trough photo-thermal power generation system heat collector of claim 1, wherein: and a check valve is also connected between the regulating valve and the temperature regulating nozzle.
4. The emergency desuperheating device of a trough photo-thermal power generation system heat collector of claim 1, wherein: and a filter is also arranged on the pipeline between the stop valve and the regulating valve.
5. The emergency desuperheating device of a trough photo-thermal power generation system heat collector of claim 1, wherein: the tempering nozzle has a conical media opening.
6. The emergency desuperheating device of a trough photo-thermal power generation system heat collector of claim 1, wherein: the emergency desuperheating device is arranged between the two light gathering grooves.
7. The emergency desuperheating device of a trough photo-thermal power generation system heat collector of claim 1, wherein: the low-temperature medium injection pipelines of the plurality of emergency temperature reduction devices are connected in parallel and are respectively connected with the low-temperature medium main pipeline.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021424737.3U CN212870282U (en) | 2020-07-20 | 2020-07-20 | Emergency temperature reduction device of heat collector of groove type photo-thermal power generation system |
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| CN202021424737.3U CN212870282U (en) | 2020-07-20 | 2020-07-20 | Emergency temperature reduction device of heat collector of groove type photo-thermal power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728781A (en) * | 2020-11-04 | 2021-04-30 | 苏州西热节能环保技术有限公司 | Temperature reduction device and slot type photo-thermal power generation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728781A (en) * | 2020-11-04 | 2021-04-30 | 苏州西热节能环保技术有限公司 | Temperature reduction device and slot type photo-thermal power generation system |
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