CN115218707A - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
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- CN115218707A CN115218707A CN202211092657.6A CN202211092657A CN115218707A CN 115218707 A CN115218707 A CN 115218707A CN 202211092657 A CN202211092657 A CN 202211092657A CN 115218707 A CN115218707 A CN 115218707A
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- working medium
- heat
- guide
- flow
- heat storage
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- 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
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
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- 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
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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
- 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)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The heat exchanger provided by the embodiment of the application, communicate first guide passageway and heat-retaining chamber through seting up runner side flow through hole on the heat-retaining body, simultaneously, be formed with the working medium storage chamber that is used for saving reserve working medium and the heat-retaining side flow through hole with this working medium storage chamber intercommunication in the heat-retaining body, thereby when the condition of losing temperature takes place for the high temperature working medium in first guide passageway, drive the heat-retaining body through rotating the piece and rotate, thereby make runner side flow through hole and the heat-retaining side flow through hole that is located on the heat transfer body on correspond the intercommunication, thereby make reserve working medium that is located working medium storage chamber flow in the first guide passageway, promote this working medium to flow out in the first guide passageway when heating working medium in this first guide passageway, thereby avoid appearing the high temperature working medium in the first guide passageway and take place to solidify because of temperature reduction, cause the condition of runner jam.
Description
Technical Field
The invention belongs to the technical field of energy exchange, and particularly relates to a heat exchanger.
Background
The heat exchanger is an energy conversion device for realizing heat transfer between two or more fluids with different temperatures, is mainly divided into different types such as a shell-and-tube heat exchanger, a double-tube heat exchanger and a plate heat exchanger, and is widely applied to the fields of chemical industry, petroleum, power, food and the like.
With the continuous improvement of the technological level, a fourth-generation nuclear reactor with sustainability, safety, reliability and economy is provided, wherein the lead-cooled fast reactor and the molten salt reactor both adopt high-melting-point fluid with higher water viscosity and heat exchange coefficient as a coolant, and the high-melting-point fluid has quite high heat transfer coefficient compared with other coolants, thereby being beneficial to improving the outlet temperature of a reactor core and the efficiency of the nuclear reactor.
However, most of such coolants are easy to solidify at normal temperature, so that when the coolants are used as heat exchange working media and are located in a flow channel of a heat exchanger, once the working media are abnormally conveyed, for example, when the temperature of the working media flowing into the heat exchanger is low due to an accident or when the flow channel inside the heat exchanger leaks relative to the external environment, the working media in the heat exchanger are solidified due to the temperature change of the working media, so that the flow channel of the heat exchanger is blocked, and the operation of the whole working system is influenced.
Disclosure of Invention
The embodiment of the invention provides a heat exchanger, which can prevent the problem that a working medium is blocked due to abnormal operation of equipment in a flow channel of the heat exchanger.
In one aspect, an embodiment of the present invention provides a heat exchanger, including: the heat exchange body is provided with a flow passage side flow through hole for communicating the first guide channel and the heat storage cavity; the heat storage assembly is accommodated in the heat storage cavity and comprises a heat storage body and a rotating part arranged on the heat storage body, the heat storage body is provided with a working medium storage cavity and a heat storage side flow through hole which are mutually communicated, and the working medium storage cavity is used for storing standby working medium; under the condition that the working medium in the first guide channel loses temperature, the heat storage body is driven to rotate by the rotating piece, so that the flow channel side flow through hole corresponds to the heat storage side flow through hole, and the standby working medium stored in the working medium storage cavity flows into the first guide channel.
In a specific embodiment, the heat storage side flow passage is provided in plurality, and the plurality of heat storage side flow passages are arranged on the heat storage body around the working medium storage chamber, and/or the plurality of heat storage side flow passages are arranged on the heat storage body along the extension direction of the first guide channel.
As a specific implementation manner, the number of the first guide channels is multiple, the multiple first guide channels are arranged around the heat storage cavity, and under the condition that the working medium of the first guide channels loses temperature, the heat storage body is driven to rotate by the rotating member, so that the multiple first communication holes corresponding to the multiple first guide channels correspond to the multiple heat storage side flow through holes one to one.
As a specific implementation manner, the number of the flow-path side flow through holes corresponding to the first guide channel is multiple, the multiple flow-path side flow through holes are uniformly arranged along the extending direction of the first guide channel, and under the condition that the working medium of the first guide channel is out of temperature, the heat storage body is driven to rotate by the rotating part, so that the multiple flow-path side flow through holes corresponding to the first guide channel correspond to the multiple heat storage side flow through holes one to one.
As a specific implementation mode, the heat storage assembly further comprises an emergency pipe arranged at one end, far away from the rotating part, of the heat storage body, the emergency pipe is communicated with the working medium storage cavity, and the emergency pipe protrudes to the outer side of the heat exchange body.
As a specific implementation manner, the heat exchange body is further formed with a plurality of second guide channels, the plurality of second guide channels surround the heat storage cavity and are spaced from the plurality of first guide channels one by one to form a first circumference close to the heat storage cavity and a second circumference far away from the heat storage cavity, the first guide channels on the first circumference correspond to the first guide channels on the second circumference one by one, and the second guide channels on the first circumference correspond to the second guide channels on the second circumference one by one.
As a specific implementation manner, the heat exchange body includes at least two radial flow plates stacked in sequence along the extending direction of the first guide channel, and each radial flow plate is provided with a first heat exchange hole corresponding to the first guide channel, a second heat exchange hole corresponding to the second guide channel, and a heat storage hole corresponding to the heat storage cavity.
As a specific implementation manner, each of the radial flow plates is provided with a first radial flow channel and a second radial flow channel, the first radial flow channels are communicated with the first heat exchange holes in the first circumference and the first heat exchange holes in the second circumference in a one-to-one correspondence manner, and the second radial flow channels are communicated with the second heat exchange holes in the first circumference and the second heat exchange holes in the second circumference in a one-to-one correspondence manner.
As a specific implementation manner, the at least two radial flow plates include a first radial flow plate and a second radial flow plate which are arranged at an interval one by one, in the first radial flow plate, the first radial flow channel has a first bending portion bending towards the adjacent second heat exchange hole, the second radial flow channel has a second bending portion bending towards the adjacent first heat exchange hole, and the bending directions of the first bending portion and the second bending portion are the same.
As a specific implementation manner, the heat exchanger further includes at least two sealing plates respectively disposed at two ends of the heat exchange body, each sealing plate is provided with a first end hole corresponding to the first radial flow channel, each sealing plate is provided with a second end hole corresponding to the second radial flow channel, and the first end hole and the second end hole are used for circulation of the working medium.
As a specific implementation mode, the heat exchanger further comprises at least two guide assemblies for guiding the working medium to circulate, and the two guide assemblies are respectively arranged on one sides of the two close plates, which are far away from the heat exchange body.
As a specific embodiment, each guide assembly has a first guide cavity and a second guide cavity formed therein, the first guide cavity being in communication with the first end hole of the corresponding sealing plate, and the second guide cavity being in communication with the second end hole of the corresponding sealing plate.
As a specific embodiment, the guide assembly further comprises at least two guide tubes, and the two guide tubes are respectively communicated with the first guide cavity and the second guide cavity and are used for enabling the working medium to flow into or flow out of the first guide cavity and the second guide cavity.
The heat exchanger provided by the embodiment of the application, communicate first guide channel and heat-retaining chamber through seting up runner side flow through hole on the heat-retaining body, simultaneously, be formed with the working medium storage chamber that is used for storing reserve working medium and the heat-retaining side flow through hole that communicates with this working medium storage chamber in the heat-retaining body, thereby when the condition of losing temperature takes place for the high temperature working medium in first guide channel, through rotating the rotation piece that is located the heat-retaining body, drive the heat-retaining body and rotate, thereby make runner side flow through hole and the heat-retaining side flow through hole that is located the heat-retaining body on the heat transfer body correspond the intercommunication, thereby make the reserve working medium that is located working medium storage chamber flow in first guide channel, promote this working medium to flow out in first guide channel when heating the working medium in this first guide channel, thereby avoid appearing the high temperature working medium in the first guide channel and take place to solidify because of temperature reduction, cause the condition of runner jam.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 illustrates a schematic structural view of a heat exchanger provided by some embodiments of the present application;
FIG. 2 illustrates a cross-sectional view of a heat exchange body provided by some embodiments of the present application;
FIG. 3 illustrates a schematic structural view of a heat storage assembly provided by some embodiments of the present application;
fig. 4 illustrates a schematic structural view of a heat storage assembly provided by some embodiments of the present application;
FIG. 5 is a schematic structural view of a heat exchange body provided in some embodiments of the present application;
fig. 6 is a cross-sectional structural view of a flow plate of a heat exchange body according to some embodiments of the present application;
FIG. 7 illustrates a schematic cross-sectional view of a first flow plate provided by some embodiments of the present application;
FIG. 8 is a cross-sectional block diagram of a closure plate according to some embodiments of the present application;
fig. 9 illustrates a schematic structural diagram of a heat exchanger provided by some embodiments of the present application.
Description of reference numerals:
100. a heat exchange body; 110. a heat storage cavity; 111. a heat storage hole; 120. a first guide passage; 121. a first heat exchanging hole; 122. a first radial flow passage; 123. a first bent portion; 130. a flow channel side flow through hole; 140. a second guide channel; 141. a second heat exchange hole; 142. a second diameter flow passage; 143. a second bent portion; 150. a first flow diameter plate;
200. a heat storage assembly; 210. a heat storage body; 220. a rotating member; 221. a connecting rod; 222. an operation unit; 230. a heat storage side flow through hole; 240. an emergency pipe;
300. closing the plate; 310. a first end hole; 320. a second end hole;
400. a guide assembly; 410. a first guide cavity; 420. a second guide cavity; 430. and (3) a guide tube.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
In order to solve the problems in the prior art, the embodiment of the invention provides a heat exchanger.
Fig. 1 shows a schematic structural view of a heat exchanger provided in some embodiments of the present application, fig. 2 is a cross-sectional view of a heat exchange body provided in some embodiments of the present application, and fig. 3 shows a schematic structural view of a heat storage assembly provided in some embodiments of the present application.
As shown in fig. 1 to 3, an embodiment of the present invention provides a heat exchanger including: the heat exchange body 100 is provided with a heat storage cavity 110 and a first guide channel 120, and the heat exchange body 100 is provided with a flow channel side flow through hole 130 for communicating the first guide channel 120 and the heat storage cavity 110; the heat storage assembly 200 is accommodated in the heat storage chamber 110, the heat storage assembly 200 comprises a heat storage body 210 and a rotating member 220 arranged on the heat storage body 210, the heat storage body 210 is provided with a working medium storage chamber (not shown) and a heat storage side flow through hole 230 which are communicated with each other, and the working medium storage chamber is used for storing spare working medium; under the condition that the working medium in the first guide channel 120 loses temperature, the heat storage body 210 is driven to rotate by the rotating part 220, so that the flow passage side flow through hole 130 corresponds to the heat storage side flow through hole 230, and the standby working medium stored in the working medium storage cavity flows into the first guide channel 120.
It is understood that the first guiding channel 120 is circulated with a high temperature working medium, which may be various liquid metals, such as lead, sodium, etc., or various non-newtonian fluids, such as melted wax, edible sauce, etc., and is not limited herein. The standby working medium can be direct heat storage media such as water, soil and the like, and can also be phase change heat storage media such as various high-temperature melting salts, mixed salts, metals, alloys and the like.
It can be understood that the standby working medium in the working medium storage chamber may be the same as or different from the working medium in the first guide channel 120, but in order to avoid that the standby working medium and the high-temperature working medium are subjected to a chemical reaction in the heat exchange process of the heat exchanger to affect the normal heat exchange work and even cause a safety accident, the standby working medium and the working medium in the first guide channel 120 cannot be subjected to a chemical reaction.
It is understood that the flow-path-side through hole 130 and the heat-storage-side through hole 230 may be the same or different in shape and size, and are not particularly limited herein.
In the heat exchanger provided by the embodiment of the application, the flow channel side flow through hole 130 communicates with the first guide channel 120 and the heat storage cavity 110, the heat storage assembly 200 is accommodated in the heat storage cavity 110, and the heat storage body 210 is provided with the heat storage side flow through hole 230 to communicate with the working medium storage cavity, so that when a high-temperature working medium in the first guide channel 120 loses temperature, the rotating member 220 on the heat storage body 210 is rotated to drive the heat storage body 210 to rotate, so that the flow channel side flow through hole 130 on the heat exchange body 100 and the heat storage side flow through hole 230 on the heat storage body 210 are correspondingly communicated, a standby working medium in the working medium storage cavity flows into the first guide channel 120, the working medium in the first guide channel 120 is heated while the working medium is pushed to flow out of the first guide channel 120, and the situation that the flow channel is blocked due to solidification of the high-temperature working medium in the first guide channel 120 is avoided.
As a specific example, the heat exchange body 100 may have a cylindrical shape, or may have another cubic shape, such as a quadrangular prism, a pentagonal prism, or the like.
As a specific implementation method, the shapes of the heat exchange flow channel in the heat exchange body 100 and the heat storage cavity 110 are not limited, and of course, the shape and the size of the heat storage cavity 110 need to correspond to the shape and the size of the heat storage assembly 200, so that the heat storage body 210 is conveniently clamped in the heat storage cavity 110, for example, when the heat storage cavity 110 is cylindrical, the corresponding heat storage assembly 200 is also cylindrical, and the inner diameter of the heat storage cavity 110 is the same as the outer diameter of the heat storage assembly 200, so that the cylindrical heat storage assembly 200 can be clamped in the heat storage cavity 110.
It can be understood that, in the present embodiment, the temperature of the high-temperature working medium in the first guiding passage 120 may be lost, for example, there is a leakage point between the first guiding passage 120 and the external environment of the heat exchanger, so that the high-temperature working medium in the first guiding passage 120 may contact the external environment at the leakage point, and the temperature of the high-temperature working medium at the leakage point is reduced due to the low temperature of the external environment, thereby causing the blockage of the first guiding passage 120 at the leakage point; or, the temperature of the high-temperature working medium filled into the first guide channel 120 by the device is low due to the abnormality or the fault of the device for filling the high-temperature working medium into the heat exchanger, so that the high-temperature working medium is gradually solidified and blocked due to the low temperature in the process of heat exchange of the first guide channel 120.
Referring to fig. 3, as a specific embodiment, the number of the heat-storage side flow through holes 230 is multiple, the multiple heat-storage side flow through holes 230 are disposed on the heat storage body 210 around the working medium storage chamber, and/or the multiple heat-storage side flow through holes 230 are disposed on the heat storage body 210 along the extending direction of the first guiding channel 120. Specifically, a plurality of heat storage side flow through holes 230 may be disposed on the heat storage body 210 around the working medium storage chamber, or may be disposed on the heat storage body 210 along the extending direction of the first guide channel 120, or a plurality of heat storage side flow through holes 230 may be disposed on the heat storage body 210 both around the working medium storage chamber and along the extending direction of the first guide channel 120.
In this embodiment, the heat storage body 210 is provided with a plurality of heat storage side flow through holes 230, when the high temperature working medium in the first guide channel 120 loses temperature, the rotating member 220 on the heat storage body 210 is rotated to drive the heat storage body 210 to rotate, so that the flow channel side flow through hole 130 on the heat exchange body 100 is communicated with one or more heat storage side flow through holes 230, and thus the standby working medium in the working medium storage cavity can flow into the first guide channel 120 more quickly, the working medium in the first guide channel 120 is heated while being pushed to flow out of the first guide channel 120, and the condition that the flow channel is blocked due to solidification of the high temperature working medium in the first guide channel 120 due to temperature reduction is avoided.
As a specific embodiment, referring to fig. 1-2, the first guiding channels 120 are multiple, the multiple first guiding channels 120 are disposed around the heat storage cavity 110, and when the working medium of the first guiding channels 120 loses temperature, the rotating member 220 drives the heat storage body 210 to rotate, so that the multiple first through holes corresponding to the multiple first guiding channels 120 correspond to the multiple heat storage side through holes 230 one by one.
In this embodiment, the plurality of first guiding channels 120 are disposed around the heat storage cavity 110, and therefore, under the condition that the high-temperature working medium in the first guiding channel 120 is out of temperature, the rotating member 220 drives the heat storage body 210 to rotate, so that the plurality of first communication holes correspondingly communicated with the plurality of first guiding channels 120 correspond to the plurality of heat storage side flow through holes 230 one to one, and therefore the standby working medium in the working medium storage cavity is introduced into the corresponding first guiding channels 120 through the flow channel side flow through holes 130 and the heat storage side flow through holes 230, and it is ensured that the high-temperature working medium in the first guiding channels 120 is not solidified in the flow channel due to temperature reduction, thereby preventing the first guiding channels 120 from being blocked and ensuring normal operation of the heat exchanger.
As a specific embodiment, referring to fig. 2, the number of the flow-path-side through holes 130 corresponding to the first guiding channel 120 is multiple, and the multiple flow-path-side through holes 130 are uniformly arranged along the extending direction of the first guiding channel 120, and when the working medium of the first guiding channel 120 loses temperature, the heat storage body 210 is driven to rotate by the rotating member 220, so that the multiple flow-path-side through holes 130 corresponding to the first guiding channel 120 correspond to the multiple heat storage-side through holes 230 one by one.
It is understood that, in the plurality of first guide channels 120 in the heat exchange body 100, each first guide channel 120 may be communicated with a plurality of flow-path side through holes 130, or a part of the first guide channels 120 are communicated with a plurality of flow-path side through holes 130, and the rest of the first guide channels 120 are communicated with one flow-path side through hole 130, which is not limited herein.
In this embodiment, the plurality of flow channel side flow through holes 130 are correspondingly communicated through the first guide channel 120, and therefore, when the high temperature working medium in the first guide channel 120 loses temperature, the heat storage body 210 is driven to rotate by the rotating member 220, so that the plurality of flow channel side flow through holes 130 correspondingly communicated with the first guide channel 120 are communicated with the plurality of heat storage side flow through holes 230 in a one-to-one correspondence manner, and therefore the standby working medium in the working medium storage cavity can be more quickly introduced into the first guide channel 120, the working medium in the first guide channel 120 is heated while being pushed to flow out of the first guide channel 120, and the condition that the flow channel is blocked due to the solidification of the high temperature working medium in the first guide channel 120 due to the temperature reduction is avoided.
As a specific embodiment, when the working medium in the first guiding channel 120 is not out of temperature, the rotating member 220 drives the heat storage body 210 to rotate, so that the first communicating hole of the first guiding channel 120 is dislocated with the second communicating hole of the heat storage body 210, thereby preventing the spare working medium in the working medium storage chamber from flowing out.
As a specific embodiment, in the case that the working medium of the first guide channel 120 is not cooled, the standby working medium in the working medium storage chamber is heated and kept warm by the high-temperature working medium in the first guide channel 120, so that the standby working medium is kept at a higher temperature all the time, so that the high-temperature standby working medium is introduced into the first guide channel 120 in the case that the working medium of the first guide channel 120 is cooled.
It can be understood that, in order to improve the heating effect and the heat preservation effect of the first guide channel 120 on the standby working medium in the working medium storage cavity, under the condition that the working medium of the first guide channel 120 is not out of temperature, the rotating member 220 can also drive the heat storage body 210 to rotate, so that the first communication hole of the first guide channel 120 is correspondingly communicated with the second communication hole of the heat storage body 210, and thus, part of the high-temperature working medium in the first guide channel 120 flows into the working medium storage cavity and heats and preserves the heat of the standby working medium in the working medium storage cavity.
Referring to fig. 3, as an embodiment, the rotating member 220 includes a connecting rod 221 connected to the heat storage body 210 and an operating portion 222 fixedly disposed at an end of the connecting rod 221 away from the heat storage body 210. In this embodiment, when the high-temperature working medium in the first guiding channel 120 loses temperature, the operation portion 222 is controlled to rotate the heat storage body 210 connected to the connecting rod 221 clockwise or counterclockwise, so that the flow channel side through hole 130 and the heat storage side through hole 230 correspondingly communicated with the first guiding channel 120 correspondingly communicate with each other, and the spare working medium in the working medium storage chamber flows into the first guiding channel 120.
It is understood that the shape of the operation portion 222 may include various shapes such as a rod shape, a T shape, a ring shape, a handle shape, etc., and is not particularly limited herein.
It is understood that the rotating member 220 may be operated manually or driven by a driving member to realize automatic rotation, for example, a rotary driving device such as an air cylinder, an electric motor, a turbine, or a hydraulic cylinder may be connected to the operation portion 222 of the rotating member 220 to drive the rotating member 220 to rotate.
Fig. 4 is a schematic structural diagram of a heat storage assembly according to some embodiments of the present disclosure.
As shown in fig. 4, as a specific embodiment, the heat storage assembly 200 further includes an emergency pipe 240 disposed at an end of the heat storage body 210 away from the rotating member 220, the emergency pipe 240 is communicated with the working medium storage chamber, and the emergency pipe 240 protrudes to an outside of the heat exchange body 100.
In this embodiment, since the emergency tube 240 is communicated with the working medium storage cavity, when the high-temperature working medium in the first guide channel 120 loses temperature, the heat storage body 210 is driven to rotate by the rotating member 220, so that the flow channel side flow through hole 130 corresponding to the first guide channel 120 is communicated with the heat storage side flow through hole 230, and meanwhile, the pressure regulating medium is filled into the working medium storage cavity through the emergency tube 240, so that the standby working medium originally located in the working medium storage cavity rapidly flows to the first guide channel 120 through the heat storage side flow through hole 230 and the flow channel side flow through hole 130 due to pressure, thereby pushing the working medium to flow out of the first guide channel 120 while rapidly heating the working medium in the first guide channel 120, and avoiding the situation that the flow channel is blocked due to solidification of the high-temperature working medium in the first guide channel 120 due to temperature reduction.
It is understood that the pressure regulating medium may be an inert gas such as helium, neon, argon, krypton, xenon, etc., or may be another medium that does not chemically react with the spare medium.
Fig. 5 is a schematic structural diagram of a heat exchange body 100 according to some embodiments of the present application.
As shown in fig. 5, as a specific embodiment, the heat exchange body 100 is further formed with a plurality of second guide channels 140, the plurality of second guide channels 140 surround the heat storage cavity 110 and are spaced from the plurality of first guide channels 120 one by one to form a first circumference close to the heat storage cavity 110 and a second circumference far from the heat storage cavity 110, the first guide channels 120 on the first circumference correspond to the first guide channels 120 on the second circumference one by one, and the second guide channels 140 on the first circumference correspond to the second guide channels 140 on the second circumference one by one.
It can be understood that a low-temperature working medium flows through the second guide channel 140, and in the heat exchanger, heat is transferred to the low-temperature working medium of the second guide channel 140 through the high-temperature working medium in the first guide channel 120, so that the heat exchange function of the heat exchanger is realized. The low-temperature working medium includes but is not limited to one or more of water, oil, ethanol and helium, and of course, other gas working media or liquid working media with lower viscosity can also be used as the low-temperature working medium.
In this embodiment, the first guide channels 120 and the second guide channels 140 are arranged at intervals one by one, so that the high-temperature working medium in the first guide channels 120 can transfer heat to the low-temperature working medium in the second guide channels 140 to the greatest extent, and the heat exchange efficiency in the heat exchanger is improved.
Fig. 6 is a cross-sectional structural view of a flow plate of the heat exchange body 100 according to some embodiments of the present application.
As shown in fig. 6, as a specific embodiment, the heat exchange body 100 includes at least two flow paths stacked in sequence along the extending direction of the first guide channel 120, and each flow path is provided with a first heat exchange hole 121 corresponding to the first guide channel 120, a second heat exchange hole 141 corresponding to the second guide channel 140, and a heat storage hole 111 corresponding to the heat storage cavity 110.
In this embodiment, the heat exchange body 100 is formed by stacking the flow plates, and the first heat exchange hole 121, the second heat exchange hole 141 and the heat storage hole 111 are disposed at positions on each flow plate corresponding to the first guide channel 120, the second guide channel 140 and the heat storage cavity 110, so that it can be understood that, in the stacking process of the flow plates, each corresponding first heat exchange hole 121 is sequentially communicated along the stacking direction of the flow plate to form the first guide channel 120, each corresponding second heat exchange hole 141 is sequentially communicated along the stacking direction of the flow plate to form the second guide channel 140, and each corresponding heat storage hole 111 is sequentially communicated along the stacking direction of the flow plate to form the heat storage cavity 110, thereby simplifying the preparation process of the heat exchange body 100 and reducing the difficulty in preparing the tiny first guide channel 120 and second guide channel 140.
It is understood that the radial flow plates are connected by welding, bonding, etc. along the extending direction of the first guiding channel 120 during the stacking process, for example, the radial flow plates are stacked to form the whole body of the heat exchanging body 100 by various welding methods such as vacuum diffusion welding, brazing, fusion welding, etc. Of course, the above-mentioned manner is only a specific example of this embodiment, and any other manner that can connect two adjacent runoff plates is within the protection scope of this application.
Referring to fig. 6, as a specific embodiment, each of the radial flow plates is provided with a first radial flow channel 122 and a second radial flow channel 142, the first radial flow channel 122 is communicated with the first heat exchanging holes 121 in the first circumference and the first heat exchanging holes 121 in the second circumference in a one-to-one correspondence manner, and the second radial flow channel 142 is communicated with the second heat exchanging holes 141 in the first circumference and the second heat exchanging holes 141 in the second circumference in a one-to-one correspondence manner.
In each flow plate, the first flow channel 122 is communicated with the first heat exchange hole 121 in the first circumference and the first heat exchange hole 121 in the second circumference, and the second flow channel 142 is communicated with the second heat exchange hole 141 in the first circumference and the second heat exchange hole 141 in the second circumference, so that the high-temperature working medium in the first guide channel 120 can flow on each flow plate along the first flow channel 122, and the low-temperature working medium in the second guide channel 140 can flow on each flow plate along the second flow channel 142, thereby increasing the heat exchange area between the high-temperature working medium in the first guide channel 120 and the low-temperature working medium in the second guide channel 140, and improving the heat exchange effect.
In order to improve the heat exchange effect, as a specific embodiment, at least one protrusion (not shown) is disposed on each of the groove walls of the first radial flow passage 122 and the second radial flow passage 142, so as to disturb the high temperature working medium or the low temperature working medium in the first radial flow passage 122 or the second radial flow passage 142, so that the high temperature working medium or the low temperature working medium fluctuates more sharply in the flow passage process, thereby further improving the heat exchange effect between the high temperature working medium and the low temperature working medium in the first radial flow passage 122 and the second radial flow passage 142. It is understood that the shape of the convex portion may be various, and is not limited in particular, for example, the convex portion may be a structure like a vortex generator.
Fig. 7 illustrates a cross-sectional view of the first flow path plate 150 according to some embodiments of the present application.
As shown in fig. 7, in order to further increase the heat exchange area between the high temperature working medium in the first guide channel 120 and the low temperature working medium in the second guide channel 140 and improve the heat exchange effect, as a specific embodiment, the at least two radial flow plates include a first radial flow plate 150 and a second radial flow plate (not shown) which are arranged at an interval, in the first radial flow plate 150, the first radial flow channel 122 has a first bending portion 123 bending towards the adjacent second heat exchange hole 141, the second radial flow channel 142 has a second bending portion 143 bending towards the adjacent first heat exchange hole 121, and the bending directions of the first bending portion 123 and the second bending portion 143 are the same. In this embodiment, the first flow channel 122 in the first flow channel 150 is bent toward the adjacent second heat exchange hole 141, and the second flow channel 142 in the first flow channel 150 is bent toward the adjacent first heat exchange hole 121, so that the circulation paths of the working media in the first flow channel 122 and the second flow channel 142 in the first flow channel 150 are extended, the heat exchange area between the high-temperature working medium in the first flow channel 122 and the low-temperature working medium in the second flow channel 142 is increased, and the heat exchange effect is improved; moreover, because the first radial flow channel 122 and the second radial flow channel 142 in the second radial flow plate are not bent, the position of the first radial flow channel 122 in the second radial flow plate corresponds to the position of the second radial flow channel 142 in the first radial flow plate 150, and the position of the second radial flow channel 142 in the second radial flow plate corresponds to the position of the first radial flow channel 122 in the first radial flow plate 150, that is, the peripheries of the first radial flow channel 122 in the first radial flow plate 150 through which the high-temperature working medium flows are all set as the second radial flow channels 142 through which the low-temperature working medium flows, so that the heat exchange effect between the high-temperature working medium in the first radial flow channel 122 and the low-temperature working medium in the second radial flow channel 142 is improved to the greatest extent.
Figure 8 illustrates a cross-sectional structural view of a closure plate 300 according to some embodiments of the present application.
As shown in fig. 8, in order to enable the high-temperature working medium and the low-temperature working medium to flow into the corresponding first radial flow channel 122 and second radial flow channel 142, as a specific embodiment, the heat exchanger further includes at least two sealing plates 300 respectively disposed at two ends of the heat exchange body 100, each sealing plate 300 has a first end hole 310 corresponding to the first radial flow channel 122, each sealing plate 300 has a second end hole 320 corresponding to the second radial flow channel 142, and the first end hole 310 and the second end hole 320 are used for the working medium to circulate.
In this embodiment, through set up first end hole 310 and second end hole 320 on the shrouding 300 that sets up respectively at heat transfer body 100 both ends, make high temperature working medium can flow in through the first end hole 310 on the shrouding 300 of one end and flow out through the first end hole 310 on the shrouding 300 of the other end, make low temperature working medium can flow in through the second end hole 320 on the shrouding 300 of one end and flow out through the second end hole 320 on the shrouding 300 of the other end, thereby guarantee that high temperature working medium and low temperature working medium are difficult to take place the working medium and mix at the in-process that flows in and flow out, avoid appearing because the violent reaction that high temperature working medium and low temperature working medium mix and arouse, thereby avoid influencing the heat transfer effect of heat exchanger, and guarantee the safe heat transfer of heat exchanger.
As a specific example, the flowing directions of the high-temperature working medium and the low-temperature working medium in the heat exchange body 100 may be the same or opposite. For example, the two ends of the heat exchange body 100 are divided into a first end and a second end, the high-temperature working medium can flow in from the first end hole 310 of the cover plate 300 at the first end of the heat exchange body 100 and flow out from the first end hole 310 of the cover plate 300 at the second end of the heat exchange body 100, and meanwhile, the low-temperature working medium can flow in from the second end hole 320 of the cover plate 300 at the first end of the heat exchange body 100 and flow out from the second end hole 320 of the cover plate 300 at the second end of the heat exchange body 100; alternatively, the high temperature working fluid flows in from the first port hole 310 of the cover plate 300 at the first end of the heat exchange body 100 and flows out from the first port hole 310 of the cover plate 300 at the second end of the heat exchange body 100, and simultaneously, the low temperature working fluid may flow in from the second port hole 320 of the cover plate 300 at the second end of the heat exchange body 100 and flows out from the second port hole 320 of the cover plate 300 at the first end of the heat exchange body 100.
As a specific example, the high temperature working medium may flow in the first guide channel 120 and may also flow in the second guide channel 140, and correspondingly, when the high temperature working medium is in the first guide channel 120, the low temperature working medium is located in the second guide channel 140, and when the high temperature working medium is in the second guide channel 140, the low temperature working medium is located in the first guide channel 120.
Fig. 9 illustrates a schematic structural diagram of a heat exchanger provided by some embodiments of the present application.
As shown in fig. 9, in order to enable the high-temperature working medium and the low-temperature working medium to better flow into or out of the corresponding first guide channel 120 and the second guide channel 140, as a specific embodiment, the heat exchanger further includes at least two guide assemblies 400 for guiding the working medium to flow through, and the two guide assemblies 400 are respectively disposed on one sides of the two close plates 300 away from the heat exchange body 100. Through setting up guide assembly 400 respectively in one side of keeping away from heat transfer body 100 at every shrouding 300, make high temperature working medium and low temperature working medium can not take place the working medium at entry and exit at the in-process of getting into corresponding first guide path 120 and second guide path 140 and mix to prevent to influence the heat transfer effect and the heat transfer safety of heat exchanger owing to the working medium mixes.
Referring to fig. 9, as an embodiment, each guide member 400 has a first guide cavity 410 and a second guide cavity 420 formed therein, the first guide cavity 410 is communicated with the first end hole 310 of the corresponding cover plate 300, and the second guide cavity 420 is communicated with the second end hole 320 of the corresponding cover plate 300.
In this embodiment, the first guide cavity 410 and the second guide cavity 420 are disposed in the guide assembly 400, and the first guide cavity 410 is communicated with the first end hole 310 of the corresponding sealing plate 300, and the second guide cavity 420 is communicated with the second end hole 320 of the corresponding sealing plate 300, so that the high-temperature working medium and the low-temperature working medium flow into or flow out of the corresponding first guide channel 120 and the second guide channel 140 through the first working medium guide cavity and the second working medium guide cavity, respectively, thereby preventing the high-temperature working medium and the low-temperature working medium from being mixed in the flowing or flowing process, preventing the violent reaction caused by the mixing of the working media from affecting the heat exchange effect of the heat exchanger, and ensuring the safe heat exchange of the heat exchanger.
As a specific embodiment, the materials of the heat exchange body 100, the heat storage body 210 and the guiding assembly 400 include, but are not limited to, one or more of heat conducting metals such as stainless steel, titanium alloy, iron alloy, etc., and of course, the materials of the heat exchange body 100, the heat storage body 210 and the guiding assembly 400 may be the same or different, and are not limited herein.
With reference to fig. 9, in order to further avoid mixing of the high-temperature working medium and the low-temperature working medium, as a specific embodiment, the guiding assembly 400 further includes at least two guiding tubes 430, and the two guiding tubes 430 are respectively communicated with the first guiding cavity 410 and the second guiding cavity 420, so as to enable the working medium to flow into or out of the first guiding cavity and the second guiding cavity.
In this embodiment, a high temperature working medium flows through the guide tube 430 communicated with the first guide cavity 410, and a low temperature working medium flows through the guide tube 430 communicated with the second guide cavity 420, so that the high temperature working medium and the low temperature working medium are separately conveyed through the guide tube 430, and the mixing of the high temperature working medium and the low temperature working medium is further avoided.
As a specific embodiment, the first guide cavity 410 may be communicated with one guide tube 430, or may be communicated with a plurality of guide tubes 430, the second guide cavity 420 may be communicated with one guide tube 430, or may be communicated with a plurality of guide tubes 430, and the number of the specifically communicated guide tubes 430 may be flexibly set according to actual conditions such as working medium flow rate, density, and flow rate.
As a specific example, the holes, the flow passages, the cavities, and the like in the embodiment of the present application may be formed by processes such as chemical etching, laser engraving, and mechanical turning, or may be formed by other equipment, for example, the first heat exchanging hole 121, the second heat exchanging hole 141, the heat storage hole 111, the first diameter flow passage 122, and the second diameter flow passage 142 may be formed by the above-mentioned processes, and it is understood that any processes that may be similar to the mechanical processes in the embodiment of the present application are within the protection scope of the present application.
As described above, only the specific embodiments of the present invention are provided, and it can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the specific working processes of the system, the module and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any equivalent modifications or substitutions can be easily made by those skilled in the art within the technical scope of the present invention.
Claims (13)
1. A heat exchanger, characterized in that the heat exchanger comprises:
the heat exchange device comprises a heat exchange body, a first heat storage cavity and a first guide channel, wherein the heat exchange body is provided with a flow channel side flow through hole for communicating the first guide channel with the heat storage cavity;
the heat storage assembly is accommodated in the heat storage cavity and comprises a heat storage body and a rotating part arranged on the heat storage body, the heat storage body is provided with a working medium storage cavity and a heat storage side flow through hole which are communicated with each other, and the working medium storage cavity is used for storing standby working medium; under the condition that the working medium in the first guide channel is out of temperature, the rotating part drives the heat storage body to rotate, so that the flow passage side flow through hole corresponds to the heat storage side flow through hole, and the standby working medium stored in the working medium storage cavity flows into the first guide channel.
2. The heat exchanger according to claim 1, wherein the heat storage side flow through hole is plural, and plural heat storage side flow through holes are provided on the heat storage body around the working medium storage chamber, and/or plural heat storage side flow through holes are provided on the heat storage body along an extending direction of the first guide passage.
3. The heat exchanger of claim 2, wherein the first guide channels are multiple, the multiple first guide channels are arranged around the heat storage cavity, and when the working medium of the first guide channels is out of temperature, the rotating member drives the heat storage body to rotate, so that the first through holes corresponding to the multiple first guide channels correspond to the multiple heat storage side flow through holes one to one.
4. The heat exchanger of claim 3, wherein the first guide channel is communicated with a plurality of flow passage side flow through holes, the flow passage side flow through holes are arranged along the extending direction of the first guide channel, and when the working medium of the first guide channel is out of temperature, the heat storage body is driven to rotate by the rotating part, so that the flow passage side flow through holes corresponding to the first guide channel are in one-to-one correspondence with the heat storage side flow through holes.
5. The heat exchanger of claim 1, wherein the heat storage assembly further comprises an emergency pipe arranged at one end of the heat storage body far away from the rotating part, the emergency pipe is communicated with the working medium storage cavity, and the emergency pipe protrudes to the outer side of the heat exchange body.
6. The heat exchanger of claim 3, wherein the heat exchange body is further formed with a plurality of second guide channels, the plurality of second guide channels surround the heat storage cavity and are spaced from the plurality of first guide channels one by one to form a first circumference close to the heat storage cavity and a second circumference far away from the heat storage cavity, the first guide channels on the first circumference are in one-to-one correspondence with the first guide channels on the second circumference, and the second guide channels on the first circumference are in one-to-one correspondence with the second guide channels on the second circumference.
7. The heat exchanger of claim 6, wherein the heat exchange body comprises at least two flow diameter plates stacked in sequence along an extending direction of the first guide channel, and each flow diameter plate is provided with a first heat exchange hole corresponding to the first guide channel, a second heat exchange hole corresponding to the second guide channel, and a heat storage hole corresponding to the heat storage cavity.
8. The heat exchanger of claim 7, wherein each of the radial flow plates has a first radial flow channel and a second radial flow channel, the first radial flow channel communicates with the first heat exchange holes in the first circumference and the first heat exchange holes in the second circumference in a one-to-one correspondence, and the second radial flow channel communicates with the second heat exchange holes in the first circumference and the second heat exchange holes in the second circumference in a one-to-one correspondence.
9. The heat exchanger according to claim 8, wherein the at least two radial flow plates include a first radial flow plate and a second radial flow plate which are arranged at an interval, the first radial flow plate has a first bending portion bending toward the adjacent second heat exchanging hole, the second radial flow plate has a second bending portion bending toward the adjacent first heat exchanging hole, and the bending directions of the first bending portion and the second bending portion are the same.
10. The heat exchanger of claim 8, further comprising at least two sealing plates respectively disposed at two ends of the heat exchanging body, wherein each sealing plate has a first end hole corresponding to the first flow channel, and each sealing plate has a second end hole corresponding to the second flow channel, and the first end hole and the second end hole are used for flowing a working medium.
11. The heat exchanger according to claim 10, further comprising at least two guiding assemblies for guiding the working medium to flow through, wherein the two guiding assemblies are respectively disposed on the sides of the two sealing plates away from the heat exchanging body.
12. The heat exchanger of claim 11, wherein each of the guide assemblies has a first guide cavity and a second guide cavity formed therein, the first guide cavity communicating with the corresponding first port hole of the cover plate, and the second guide cavity communicating with the corresponding second port hole of the cover plate.
13. The heat exchanger of claim 12, wherein the guide assembly further comprises at least two guide tubes, the two guide tubes being in communication with the first guide chamber and the second guide chamber, respectively, for flowing a working medium into or out of the first guide chamber and the second guide chamber.
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| CN202211092657.6A CN115218707B (en) | 2022-09-08 | 2022-09-08 | Heat exchanger |
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