CN114216274A - Heating device for salt pump expansion joint of heat storage tank of groove type photo-thermal power station - Google Patents
Heating device for salt pump expansion joint of heat storage tank of groove type photo-thermal power station Download PDFInfo
- Publication number
- CN114216274A CN114216274A CN202111631459.8A CN202111631459A CN114216274A CN 114216274 A CN114216274 A CN 114216274A CN 202111631459 A CN202111631459 A CN 202111631459A CN 114216274 A CN114216274 A CN 114216274A
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- Prior art keywords
- heat
- storage tank
- expansion joint
- conducting plate
- plate
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- 150000003839 salts Chemical class 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 title claims abstract description 31
- 238000005338 heat storage Methods 0.000 title claims abstract description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 abstract description 7
- 230000007797 corrosion Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 7
- 238000004321 preservation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/30—Arrangements for storing heat collected by solar heat collectors storing heat in liquids
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S2080/03—Arrangements for heat transfer optimization
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
- F28D2020/0047—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material using molten salts or liquid metals
-
- 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
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention provides a heating device for a salt pump expansion joint of a heat storage tank of a groove type photo-thermal power station, which comprises a first heat conducting plate, a heat conducting pipe and a second heat conducting plate, wherein the expansion joint of a salt pump is cylindrical, and the first heat conducting plate is sleeved on the outer side of the expansion joint; the second heat conduction plate is arranged at the bottom of the heat storage tank and is connected with the first heat conduction plate through the heat conduction pipe; the second heat-conducting plate absorbs the heat of the bottom of the heat storage tank, and the heat is transmitted to the first heat-conducting plate through the heat-conducting pipe, and the expansion joint is heated through the first heat-conducting plate. The technical scheme of the invention can simply realize the purpose of heating and heat preservation of the expansion joint, has good heat-conducting property and corrosion resistance, prolongs the service life of equipment and reduces the maintenance cost.
Description
Technical Field
The invention relates to the technical field of photo-thermal power stations, in particular to a heating device for a salt pump expansion joint of a heat storage tank of a slot type photo-thermal power station.
Background
At present, heat storage and release of the heat storage system of the groove type photo-thermal power station are realized by using a plurality of salt pumps for medium transportation. As shown in fig. 1, the thermal storage tank 500 is provided with a plurality of salt pumps 510, and expansion joints 520 (below the salt pump platform 530) are provided at upper bearings of the salt pumps 510 and at transition sections of the thermal storage tank 500. Since the heat-storage molten salt may be condensed below 220 ℃, if the temperature at the position of the expansion joint 520 is lower than 220 ℃, a locking phenomenon may occur on the movable and static parts of the bearing of the salt pump 510, so that the salt pump 510 cannot be started. In order to maintain the temperature at the expansion joint, the current main method is to install an armored high-temperature electric tracing at the expansion joint 520 for heating, and the heating mode has high power consumption. Due to the vibration and salt gas corrosion of the salt pump 510 during operation, the electric tracing fault rate is high, the service life is short, the maintenance amount and the maintenance cost are high, and the maintenance is difficult.
Disclosure of Invention
The invention provides a heating device for a salt pump expansion joint of a heat storage tank of a slot type photo-thermal power station, which can simply achieve the purpose of heating and heat preservation of the expansion joint, has good heat conduction performance and corrosion resistance, prolongs the service life of equipment, and reduces the maintenance cost.
The invention provides a heating device of a salt pump expansion joint of a heat storage tank of a slot type photo-thermal power station, which comprises a first heat conducting plate, a heat conducting pipe and a second heat conducting plate,
the expansion joint of the salt pump is cylindrical, and the first heat conducting plate is sleeved on the outer side of the expansion joint;
the second heat conduction plate is arranged at the bottom of the heat storage tank and is connected with the first heat conduction plate through the heat conduction pipe;
the second heat-conducting plate absorbs the heat of the bottom of the heat storage tank, and the heat is transmitted to the first heat-conducting plate through the heat-conducting pipe, and the expansion joint is heated through the first heat-conducting plate.
Further, the first heat conducting plate is a sleeve with a preset thickness and a preset height.
Further, the inner diameter of the sleeve is larger than the outer diameter of the expansion joint.
Further, the sleeve is formed by splicing 2 semi-circular arc-shaped heat conducting pieces.
Further, the second heat conducting plate is sleeved at the bottom of the salt pump or arranged on the inner wall of the heat storage tank.
Further, when the second heat conducting plate is sleeved at the bottom of the salt pump, the heat conducting pipe wraps the body of the salt pump.
Further, when the second heat-conducting plate sets up on the heat storage tank inner wall, the heat-conducting pipe is followed the outer wall setting of heat storage tank.
Further, when the heat conduction pipe is arranged along the outer wall of the heat storage tank, the heating device further comprises a fixing member for fixing the heat conduction pipe.
Furthermore, the first heat conducting plate and the heat conducting pipe as well as the heat conducting pipe and the second heat conducting plate are connected in a welding mode.
Further, the first heat conducting plate, the heat conducting pipe and the second heat conducting plate are made of aluminum materials.
By applying the technical scheme of the invention, the purpose of heating and heat preservation of the expansion joint can be simply realized, the heat conduction performance is good, the corrosion resistance is realized, the service life of equipment is prolonged, and the maintenance cost is reduced.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present invention will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present disclosure are illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
fig. 1 shows a schematic structural view of a prior art thermal storage tank;
fig. 2 is a schematic structural diagram showing a heating device of a salt pump expansion joint of a thermal storage tank of a trough type photothermal power station according to a first embodiment;
fig. 3 is a schematic structural diagram of a heating device of a salt pump expansion joint of a thermal storage tank of a trough type photothermal power station according to a second embodiment;
fig. 4 shows a schematic structural diagram of a heating device of the salt pump expansion joint of the thermal storage tank of the trough type photothermal power station according to the second embodiment.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may also be oriented 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present invention will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, the thicknesses of layers and regions are exaggerated for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
As shown in fig. 2, the heating apparatus of the salt pump expansion joint of the thermal storage tank of the trough type photothermal power station according to the first embodiment includes a first heat conduction plate 100, a heat conduction pipe 200 and a second heat conduction plate 300.
As can be seen in prior art fig. 1, the expansion joint 520 of the salt pump 510 is cylindrical. The first heat conduction plate 100 is sleeved outside the expansion joint 520. The first heat-conducting plate 100 is a sleeve having a predetermined thickness and a predetermined height, and the inner diameter of the sleeve is greater than the outer diameter of the expansion joint 520, so as to wrap the expansion joint 520.
In one embodiment, the sleeve may be formed by splicing 2 semi-circular arc-shaped heat-conducting members.
The second heat conduction plate 300 is disposed at the bottom of the heat storage tank 500, and is connected to the first heat conduction plate 100 through the heat conduction pipe 200. The first heat conduction plate 100 and the heat pipe 200 and the second heat conduction plate 300 can be connected by welding. Further, the first heat conducting plate 100, the heat conducting pipe 200 and the second heat conducting plate 300 are made of aluminum material, and have the characteristics of light weight, good heat conductivity, corrosion resistance and the like.
The specific working principle is as follows: the second heat conduction plate 300 absorbs heat from the bottom of the heat storage tank 500, and moves along the heat conduction pipe 200 through the heat transfer medium, thereby transferring heat to the first heat conduction plate 100. Finally, the expansion joint 520 is heated by the first heat-conducting plate 100.
In an embodiment, the second heat conducting plate 300 is sleeved at the bottom of the salt pump 510, and the heat conducting pipe 200 corresponding to the second heat conducting plate wraps the body of the salt pump 510, which is equivalent to a heating layer sleeved outside the whole salt pump 510, so that the whole body is stronger, and the heat conducting plate is suitable for early-stage construction schemes. The first heat conducting plate 100, which is supported by the main structure of the salt pump 510 and is used to lay the heat conducting pipe 200 along the bottom part until reaching the expansion joint 520, has the characteristics of light weight, good heat conductivity, corrosion resistance and the like.
In another embodiment, as shown in fig. 3, the second heat conductive plate 300 may be further disposed on the inner wall of the heat storage tank 500. At this time, the shape of the second heat conduction plate 300 is not limited. The second heat conduction plate 300 is mostly located inside the heat storage tank 500, and a small portion of the second heat conduction plate extends out of the heat storage tank 500, and the heat conduction pipe 200 is disposed along the outer wall of the heat storage tank 500 and uniformly extends to the first heat conduction plate 100. The end of the heat conductive pipe 200 is welded to the inside of the first heat conduction plate 100. The second heat conduction plate 300 is installed from the bottom of the outer wall of the thermal storage tank 500, and is laid along the outer wall of the thermal storage tank 500 to the first heat conduction plate 100 at the expansion joint 520 through the heat conduction pipe 200. This mode is applicable to later stage transformation construction, and the mode that has than the former mode has construction convenience, does not have characteristics such as corruption, long service life, and does not influence heat-retaining system normal operating.
In addition, as shown in fig. 4, when the heat conductive pipes 200 are disposed along the outer wall of the thermal storage tank 500, the heating apparatus further includes a fixing member 210 for fixing the heat conductive pipes 200, thereby serving to stabilize the heat conductive pipes 200.
The heating device for the salt pump expansion joint of the heat storage tank of the groove type photo-thermal power station can simply achieve the purpose of heating and heat preservation of the expansion joint, is good in heat conduction performance and corrosion-resistant, prolongs the service life of equipment, and reduces maintenance cost.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A heating device for a salt pump expansion joint of a heat storage tank of a slot type photo-thermal power station is characterized by comprising a first heat conducting plate, a heat conducting pipe and a second heat conducting plate,
the expansion joint of the salt pump is cylindrical, and the first heat conducting plate is sleeved on the outer side of the expansion joint;
the second heat conduction plate is arranged at the bottom of the heat storage tank and is connected with the first heat conduction plate through the heat conduction pipe;
the second heat-conducting plate absorbs the heat of the bottom of the heat storage tank, and the heat is transmitted to the first heat-conducting plate through the heat-conducting pipe, and the expansion joint is heated through the first heat-conducting plate.
2. The heating device of claim 1, wherein the first thermally conductive plate is a sleeve having a predetermined thickness and a predetermined height.
3. The heating device of claim 2, wherein an inner diameter of the sleeve is greater than an outer diameter of the expansion joint.
4. The heating device of claim 2, wherein the sleeve is formed by splicing 2 semi-circular arc-shaped heat-conducting members.
5. The heating device of claim 1, wherein the second heat conducting plate is sleeved on the bottom of the salt pump or arranged on the inner wall of the heat storage tank.
6. The heating device of claim 5, wherein when the second heat conducting plate is sleeved at the bottom of the salt pump, the heat conducting pipe wraps the body of the salt pump.
7. The heating device of claim 5, wherein the heat conducting pipe is disposed along an outer wall of the heat storage tank when the second heat conducting plate is disposed on the inner wall of the heat storage tank.
8. The heating apparatus as claimed in claim 7, wherein when the heat conductive pipe is provided along an outer wall of the thermal storage tank, the heating apparatus further comprises a fixing member for fixing the heat conductive pipe.
9. The heating device of claim 1, wherein the first heat conducting plate and the heat conducting pipe and the second heat conducting plate are connected by welding.
10. The heating device of claim 1, wherein the first thermally conductive plate, the thermally conductive tube, and the second thermally conductive plate are aluminum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111631459.8A CN114216274A (en) | 2021-12-28 | 2021-12-28 | Heating device for salt pump expansion joint of heat storage tank of groove type photo-thermal power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111631459.8A CN114216274A (en) | 2021-12-28 | 2021-12-28 | Heating device for salt pump expansion joint of heat storage tank of groove type photo-thermal power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114216274A true CN114216274A (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111631459.8A Pending CN114216274A (en) | 2021-12-28 | 2021-12-28 | Heating device for salt pump expansion joint of heat storage tank of groove type photo-thermal power station |
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| Country | Link |
|---|---|
| CN (1) | CN114216274A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204176229U (en) * | 2014-10-11 | 2015-02-25 | 洛阳双瑞特种装备有限公司 | A kind of detachable electrical tracing structure for expansion joint |
| WO2016201484A1 (en) * | 2015-06-19 | 2016-12-22 | Christopher Meredith | Improvements in apparatus for repairing pipe joints |
| CN210154401U (en) * | 2019-07-03 | 2020-03-17 | 王锐 | Heat energy and power engineering heat energy recovery device |
| CN214088318U (en) * | 2020-11-17 | 2021-08-31 | 中国农业大学烟台研究院 | Heating device based on livestock and poultry manure fermentation |
-
2021
- 2021-12-28 CN CN202111631459.8A patent/CN114216274A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204176229U (en) * | 2014-10-11 | 2015-02-25 | 洛阳双瑞特种装备有限公司 | A kind of detachable electrical tracing structure for expansion joint |
| WO2016201484A1 (en) * | 2015-06-19 | 2016-12-22 | Christopher Meredith | Improvements in apparatus for repairing pipe joints |
| CN210154401U (en) * | 2019-07-03 | 2020-03-17 | 王锐 | Heat energy and power engineering heat energy recovery device |
| CN214088318U (en) * | 2020-11-17 | 2021-08-31 | 中国农业大学烟台研究院 | Heating device based on livestock and poultry manure fermentation |
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