CN112238875A - Forced liquid cooling heat conduction pipe and forced liquid cooling split vacuum pipeline structure - Google Patents
Forced liquid cooling heat conduction pipe and forced liquid cooling split vacuum pipeline structure Download PDFInfo
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- CN112238875A CN112238875A CN201910638815.5A CN201910638815A CN112238875A CN 112238875 A CN112238875 A CN 112238875A CN 201910638815 A CN201910638815 A CN 201910638815A CN 112238875 A CN112238875 A CN 112238875A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B13/00—Other railway systems
- B61B13/10—Tunnel systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
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Abstract
The invention provides a forced liquid cooling heat conduction pipe and a forced liquid cooling split vacuum pipeline structure, wherein the forced liquid cooling heat conduction pipe comprises a power unit, a liquid inlet, a liquid channel and a liquid outlet, the liquid channel is arranged in the vacuum pipeline structure and is close to an electric coil in the vacuum pipeline structure, the liquid inlet is arranged at one end of the liquid channel, the liquid outlet is arranged at the other end of the liquid channel, and the power unit is used for driving cooling liquid to enter the liquid channel so as to absorb heat emitted by the electric coil and discharge the liquid after absorbing the heat from the liquid outlet. By applying the technical scheme of the invention, the technical problems of overhigh temperature rise of the electric coil, high line construction cost, large occupied area and high construction difficulty in the prior art are solved.
Description
Technical Field
The invention relates to the technical field of vacuum pipeline magnetic suspension traffic systems, in particular to a forced liquid cooling heat conduction pipe and a forced liquid cooling split vacuum pipeline structure.
Background
In order to reduce the running resistance, the wheels and the steel rails of the traditional railway traffic are eliminated, the levitation force and the guiding force of the vehicle are provided by using the magnetic levitation technology, and the traction force and the braking force are provided for the vehicle by using the linear motor. And in order to reduce the air resistance of the train running at high speed, the train is sealed in the pipeline, and the pipeline is vacuumized.
Compared with the conventional wheel track system, the magnetic suspension system needs to lay coils capable of providing suspension force, guiding force, propelling force and braking force on the track, the electric coils can generate large current when in operation, so that the coils can generate heat, and particularly the coils for providing the propelling and braking actions can generate more heat due to longer electrifying time. In the vacuum pipeline, the air density is very low (the vacuum pipeline is not completely vacuum, and thin air exists), the heat dissipation effect is very poor, and the working performance and the service life of the vacuum pipeline are affected due to overhigh temperature of the coil when the vacuum pipeline is used for a long time.
At present, the vacuum pipes do not enter the engineering implementation and application stage worldwide, and from the disclosed information, all the vacuum pipes do not consider how to dissipate heat of the coil, and the heat generated by the coil is accumulated to a higher temperature when the vacuum pipes are used for a long time, so that the insulation performance of the coil is influenced, and the service life of the coil is shortened.
In addition, the cross section of the existing vacuum pipeline is of a complete circular pipe structure, and particularly as shown in fig. 6, the vacuum pipeline of the circular pipe structure is not beneficial to improving the vertical rigidity of the cross section, the occupied area in the horizontal direction is large, the pipeline erection difficulty is large, and the construction investment cost of the vacuum pipeline is high.
The vacuum line of the prior art construction has several technical disadvantages.
First, the vacuum pipes do not consider how to dissipate heat of the coil, and heat generated by the coil is accumulated to a higher temperature when the vacuum pipes are used for a long time, so that the insulation performance of the coil is affected and the service life of the coil is shortened.
Secondly, the strength properties of concrete materials and steel materials are not fully exploited. The action load on the pipeline when a vehicle runs in the vacuum pipeline is mainly vertical, so that the section of the pipeline is required to have high bending rigidity in the vertical direction, the horizontal direction does not need too high rigidity, and the bending capacities of the whole circular steel pipe in the vertical direction and the horizontal direction are the same and unreasonable. In addition, the section geometry of the concrete part cannot be designed too high due to the limitation of the round pipe, more materials are distributed in the horizontal direction, the vertical rigidity of the pipeline is insufficient, the horizontal rigidity is excessive, and the strength performance of the materials is not fully utilized.
Thirdly, construction at elevated bridge sections is difficult. When the vacuum pipeline is used, the vacuum pipeline is made into a section with the length of dozens of meters, the vacuum pipeline is installed on a viaduct by using bridging equipment, the upper side of the pipeline of the whole circular pipe structure is arc-shaped, only one layer of steel plate is arranged, and the dead weight of a bridge girder erection machine cannot be borne, so that the engineering construction difficulty of the vacuum pipeline is high, and the problem of high construction cost is caused.
Fourth, the line built by such pipelines occupies a large area. Because the transverse and vertical dimensions of the circular tube are the same, the diameter of the circular tube must be increased in order to increase the bending vertical rigidity, and the increase of the transverse dimension increases the occupied area of the vacuum pipeline circuit, which causes the increase of the line construction cost.
Disclosure of Invention
The invention provides a forced liquid cooling heat conduction pipe and a forced liquid cooling split vacuum pipeline structure, which can solve the technical problems of overhigh temperature rise of an electric coil, high line construction cost, large occupied area and high construction difficulty in the prior art.
According to an aspect of the present invention, a forced liquid cooling heat pipe is provided, which includes a power unit, a liquid inlet, a liquid passage and a liquid outlet, wherein the liquid passage is disposed in a vacuum pipe structure and is close to an electric coil disposed in the vacuum pipe structure, the liquid inlet is disposed at one end of the liquid passage, the liquid outlet is disposed at the other end of the liquid passage, and the power unit is configured to drive cooling liquid to enter the liquid passage to absorb heat dissipated by the electric coil and discharge the heat-absorbed liquid from the liquid outlet.
Further, the power unit comprises an inlet driving unit and/or an outlet driving unit, the inlet driving unit is arranged at the liquid inlet, the outlet driving unit is arranged at the liquid outlet, and the inlet driving unit and/or the outlet driving unit are used for driving cooling liquid to enter the liquid channel so as to absorb heat emitted by the electric coil and discharge the liquid after absorbing the heat from the liquid channel.
Further, the inlet drive unit comprises a water pump and/or the outlet drive unit comprises a water pump.
According to another aspect of the present invention, there is provided a forced liquid cooling type split vacuum pipe structure, which includes a first structure, a second structure and a forced liquid cooling heat pipe as described above, the forced liquid cooling heat pipe is disposed in the second structure and is close to an electric coil located in the second structure, the second structure is used for providing a running track for a vehicle, the second structure is disposed at a lower portion of the first structure, the first structure and the second structure are connected to form a pipe body, and the pipe body is used for providing an airtight vacuum pipe environment.
Furthermore, the forced liquid cooling split vacuum pipeline structure also comprises a heat conducting element, and the heat conducting element is arranged between the electric coil and the forced liquid cooling heat conducting pipe; the second structure is made of reinforced concrete and heat-conducting aggregate.
Furthermore, the forced liquid cooling split vacuum pipeline structure comprises a plurality of first forced liquid cooling heat conduction pipes and a plurality of second forced liquid cooling heat conduction pipes, the first structure is an arc-shaped structure, the second structure is a U-shaped structure, the second structure comprises a first side wall and a second side wall, a plurality of first electric coils are continuously arranged in the first side wall, and the plurality of first forced liquid cooling heat conduction pipes and the plurality of first electric coils are arranged in a one-to-one correspondence manner; and a plurality of second electric coils are continuously arranged in the second side wall, and the plurality of second electric coils are respectively arranged in one-to-one correspondence with the plurality of first electric coils and the plurality of second forced liquid cooling heat conduction pipes.
Furthermore, the power unit comprises a first inlet driving unit and a second inlet driving unit, the forced liquid-cooled split vacuum pipeline structure further comprises a first total liquid inlet pipe and a second total liquid inlet pipe, the first total liquid inlet pipe is respectively connected with the liquid inlets of the first forced liquid-cooled heat conduction pipes and the first inlet driving unit, and the second total liquid inlet pipe is respectively connected with the liquid inlets of the second forced liquid-cooled heat conduction pipes and the second inlet driving unit.
Furthermore, the power unit comprises a first outlet driving unit and a second outlet driving unit, the forced liquid-cooled split vacuum pipeline structure further comprises a first main liquid outlet pipe and a second main liquid outlet pipe, the first main liquid outlet pipe is respectively connected with the liquid outlets of the first forced liquid-cooled heat conduction pipes and the first outlet driving unit, and the second main liquid outlet pipe is respectively connected with the liquid outlets of the second forced liquid-cooled heat conduction pipes and the second outlet driving unit.
Furthermore, the power unit comprises a first inlet driving unit, a second inlet driving unit, a first outlet driving unit and a second outlet driving unit, the forced liquid-cooled split vacuum pipeline structure further comprises a first total liquid inlet pipe, a second total liquid inlet pipe, a first total liquid outlet pipe and a second total liquid outlet pipe, the first total liquid inlet pipe is respectively connected with the liquid inlets of the first forced liquid-cooled heat conduction pipes and the first inlet driving unit, and the first total liquid outlet pipe is respectively connected with the liquid outlets of the first liquid-cooled forced heat conduction pipes and the first outlet driving unit; the second total liquid inlet pipe is respectively connected with the liquid inlets of the second forced liquid cooling heat conduction pipes and the second inlet driving unit, and the second total liquid outlet pipe is respectively connected with the liquid outlets of the second forced liquid cooling heat conduction pipes and the second outlet driving unit.
Further, the first forced liquid cooling heat conduction pipe and the second forced liquid cooling heat conduction pipe are both made of non-conductive materials.
By applying the technical scheme provided by the invention, the forced liquid cooling heat conduction pipe is arranged in the vacuum pipeline structure and is close to the electric coil in the vacuum pipeline structure, when the forced liquid cooling heat conduction pipe is used, cooling liquid is driven by the power unit to enter the liquid channel, the liquid flows into the liquid channel to take away heat of the coil, and is discharged through the liquid outlet.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 and 2 illustrate cross-sectional views of a forced liquid-cooled split vacuum pipe structure provided according to an embodiment of the present invention;
FIG. 3 illustrates a side view of the forced liquid cooled split vacuum piping structure provided in FIG. 1;
FIG. 4 illustrates a front view of a split vacuum piping structure providing forced liquid cooling according to yet another embodiment of the present invention;
FIG. 5 illustrates a side view of the forced liquid cooled split vacuum piping structure provided in FIG. 4;
fig. 6 shows a cross-sectional view of a vacuum duct provided in the prior art.
Wherein the figures include the following reference numerals:
10. a liquid inlet; 20. a liquid channel; 30. a liquid outlet; 100. forcibly cooling the heat conduction pipe; 110. a first forced liquid cooling heat pipe; 120. a second forced liquid cooling heat pipe; 130. a first total liquid inlet pipe; 140. a second total liquid inlet pipe; 200. a first structure; 300. a second structure; 301. a first side wall; 301a, a first electrical coil; 302. a second side wall; 302a, a second electric coil; 400. a heat conducting element; 500. a thermally conductive aggregate; 600. a seal member; 700. a connecting bolt; 800. a hermetic coating; 900. and a reinforcing plate.
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 technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
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.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1 to 5, a forced liquid cooling heat pipe according to an embodiment of the present invention includes a power unit, a liquid inlet 10, a liquid passage 20 and a liquid outlet 30, wherein the liquid passage 20 is disposed in a vacuum pipe structure and is close to an electric coil disposed in the vacuum pipe structure, the liquid inlet 10 is disposed at one end of the liquid passage 20, the liquid outlet 30 is disposed at the other end of the liquid passage 20, and the power unit is configured to drive a cooling liquid to enter the liquid passage 20 to absorb heat dissipated by the electric coil and discharge the liquid after absorbing heat from the liquid outlet 30.
By applying the configuration mode, the forced liquid cooling heat conduction pipe is arranged in the vacuum pipeline structure and is close to the electric coil in the vacuum pipeline structure, when the forced liquid cooling heat conduction pipe is used, cooling liquid is driven by the power unit to enter the liquid channel, the liquid flows into the liquid channel to take away heat of the coil, and is discharged through the liquid outlet. In the present invention, water may be used as the cooling liquid in consideration of the cost of the cooling liquid and the ease of acquisition.
Further, in the present invention, in order to achieve rapid heat dissipation of the electric coil by the cooling liquid, the power unit may be configured to include an inlet driving unit and/or an outlet driving unit, the inlet driving unit is disposed at the liquid inlet 10, the outlet driving unit is disposed at the liquid outlet 30, and the inlet driving unit and/or the outlet driving unit is configured to drive the cooling liquid into the liquid channel 20 to absorb heat dissipated by the electric coil and discharge the heat-absorbed liquid from the liquid channel 20.
As an embodiment of the present invention, the power unit only includes an inlet driving unit, the inlet driving unit is disposed at the liquid inlet 10, the inlet driving unit can drive the cooling liquid to enter the liquid channel to absorb the heat emitted from the electric coil and discharge the liquid after absorbing the heat from the liquid outlet 30, wherein the inlet driving unit includes a water pump or other power. As another embodiment of the present invention, the power unit may also only include an outlet driving unit, the outlet driving unit is disposed at the liquid outlet 30, and the outlet driving unit can drive the cooling liquid to enter the liquid channel to absorb the heat emitted by the electric coil and discharge the liquid after absorbing the heat from the liquid outlet 30, wherein the outlet driving unit includes a water pump or other power.
In order to further improve the heat dissipation efficiency of the electric coil, the power unit may also be configured to include an inlet driving unit and an outlet driving unit at the same time, the inlet driving unit is disposed at the liquid inlet 10, the outlet driving unit is disposed at the liquid outlet 30, the inlet driving unit and the outlet driving unit cooperate to drive the cooling liquid to enter the liquid channel to absorb the heat dissipated by the electric coil and discharge the liquid after absorbing the heat from the liquid outlet 30, in such a manner, the inlet driving unit and the outlet driving unit cooperate to improve the circulation efficiency of the cooling liquid in the liquid channel, thereby effectively improving the heat dissipation efficiency of the electric coil and reducing the temperature of the electric coil.
Further, as a first embodiment of the present invention, as shown in fig. 1 to fig. 3, the forced liquid cooling heat pipe is of a bent structure, the forced liquid cooling heat pipe includes three heat conduction sections, and a second heat conduction section is respectively disposed at an included angle with the first heat conduction section and the third heat conduction section, as shown in fig. 3, the second heat conduction section arranged obliquely is close to the electric coil, and the purpose of the oblique arrangement is to increase a contact area between the forced liquid cooling heat pipe and the electric coil region, and enhance a heat dissipation effect. And a plurality of forced liquid cooling heat conduction pipes are sequentially, uniformly and continuously arranged along the length direction of the vacuum pipeline structure and used for leading out heat generated by the plurality of electric coils.
Further, in the present invention, as a second embodiment of the present invention, in order to improve the heat dissipation efficiency of the forced liquid cooling heat pipe, as shown in fig. 4 and fig. 5, the forced liquid cooling heat pipe 100 may be configured to include a plurality of forced liquid cooling heat conduction sections, and the plurality of forced liquid cooling heat conduction sections are sequentially connected and arranged in a serpentine shape, and this configuration can increase the contact area between the heat pipe and the electric coil area. As shown in fig. 5, the forced liquid cooling heat pipe 100 includes four forced liquid cooling heat conduction sections, the four forced liquid cooling heat conduction sections are slightly inclined horizontal sections, and the four forced liquid cooling heat conduction sections are sequentially connected to form a serpentine arrangement, which can increase the heat conduction area and improve the heat dissipation efficiency of the forced liquid cooling heat pipe. As another embodiment of the present invention, the forced liquid cooling heat pipe may also have another structure, as long as the heat dissipated by the electric coil can be conducted out, which is not limited herein.
According to another aspect of the present invention, there is provided a forced liquid cooling type split vacuum piping structure comprising a first structure 200, a second structure 300, and the forced liquid cooling heat pipe 100 as described above, the forced liquid cooling heat pipe 100 being disposed in the second structure 300 and adjacent to an electric coil located in the second structure 300, the second structure 300 being used to provide a running track for a vehicle, the second structure 300 being disposed at a lower portion of the first structure 200, the first structure 200 being connected with the second structure 300 to form a piping body, the piping body being used to provide an airtight vacuum piping environment.
By applying the configuration mode, the forced liquid cooling split vacuum pipeline structure comprises the forced liquid cooling heat conduction pipe, and the forced liquid cooling heat conduction pipe can lead out heat generated by the electric coil, reduce the temperature of the electric coil, and the reduction of the temperature is beneficial to improving the electric conductivity of the coil, improving the insulating property of an insulating layer of the coil and prolonging the service life of the coil, so that the working performance of the vacuum pipeline structure can be greatly improved by applying the forced liquid cooling heat conduction pipe to the liquid cooling split vacuum pipeline structure. Furthermore, this force liquid cooling formula components of a whole that can function independently vacuum pipeline structure is through setting up the pipeline body into the components of a whole that can function independently, and first structure and second structure are connected in order to be used for providing gas tightness vacuum pipeline environment, and this kind of mode makes pipeline structure's height dimension and width dimension can freely design, and each other does not influence, can not increase the area of horizontal size and circuit when effectively increasing the vertical rigidity of pipeline. In addition, during construction of the elevated road section, the liquid-cooled split vacuum pipeline structure provided by the invention is a split pipeline, so that the second structure positioned at the lower part can form a working route of a bridge girder erection machine during construction, and after the second structure positioned at the lower part of the vacuum pipeline structure is installed, the bridge girder erection machine is used for installing the first structures at the upper part in place one by one, so that the engineering construction is very convenient, and the line construction cost is low.
Further, in the present invention, in order to enhance the heat conduction effect, the forced liquid-cooled split vacuum pipe structure may be configured to further include a heat conduction element 400, the heat conduction element 400 being disposed between the electric coil and the forced liquid-cooled heat pipe 100; the material of the second structure 300 includes reinforced concrete and a thermally conductive aggregate 500. As an embodiment of the present invention, the heat conductive member 400 includes a heat conductive silicone grease or sheet, and the heat conductive aggregate 500 includes an iron oxide aggregate, which may be added to the reinforced concrete in the vicinity of the electric coil.
In addition, in the present invention, as shown in fig. 1, in order to ensure uniformity of heat dissipation when a vehicle rapidly runs in a vacuum pipe, the structure of the forced liquid cooling split vacuum pipe may be configured to include a plurality of first forced liquid cooling heat pipes 110 and a plurality of second forced liquid cooling heat pipes 120, the first structure 200 is an arc-shaped structure, the second structure 300 is a U-shaped structure, the second structure 300 includes a first sidewall 301 and a second sidewall 302, a plurality of first electric coils 301a are continuously disposed in the first sidewall 301, and the plurality of first forced liquid cooling heat pipes 110 and the plurality of first electric coils 301a are disposed in a one-to-one correspondence; a plurality of second electric coils 302a are continuously disposed in the second sidewall 302, and the plurality of second electric coils 302a are disposed in one-to-one correspondence with the plurality of first electric coils 301a and the plurality of second forced liquid cooling heat pipes 120, respectively.
As an embodiment of the present invention, in order to simplify the structure and reduce the cost, the power unit may be configured to include a first inlet driving unit and a second inlet driving unit, the forced liquid cooling split vacuum pipeline structure further includes a first total liquid inlet pipe 130 and a second total liquid inlet pipe 140, the first total liquid inlet pipe 130 is respectively connected to the liquid inlets 10 of the plurality of first forced liquid cooling heat pipes 110 and the first inlet driving unit, the first inlet driving unit pumps liquid into the first total liquid inlet pipe 130, and the liquid flows into the plurality of first liquid cooling forced heat pipes 110 to take away heat of the coils and is discharged through the liquid outlets 30 of the respective first forced liquid cooling heat pipes 110. The second total liquid inlet pipe 140 is connected to the plurality of second forced liquid cooling heat pipes 120 and the second inlet driving unit, respectively, the second inlet driving unit pumps liquid into the second total liquid inlet pipe 140, and the liquid flows into the plurality of second forced liquid cooling heat pipes 120 to take away heat of the coil and is discharged through the liquid outlet 30 of each second forced liquid cooling heat pipe 120. As another embodiment of the present invention, the first total liquid inlet pipe and the second total liquid inlet pipe may not be provided, and accordingly, the inlet driving units are provided at the liquid inlets of the first forced liquid cooling heat pipe 110 and the second forced liquid cooling heat pipe, which is complicated in structure and high in cost. In addition, in order to facilitate the uniform recycling of liquid, a first total liquid outlet pipe 150 and a second total liquid outlet pipe 160 may also be provided, the first total liquid outlet pipe 150 is respectively connected to the liquid outlets 30 of the plurality of first forced liquid-cooling heat pipes 110, and the second total liquid outlet pipe 160 is respectively connected to the liquid outlets 30 of the plurality of second total liquid outlet pipes 160.
As another embodiment of the present invention, in order to simplify the structure and reduce the cost, the power unit may be configured to include a first outlet driving unit and a second outlet driving unit, the forced liquid-cooled split vacuum pipeline structure further includes a first total liquid outlet 150 and a second total liquid outlet 160, the first total liquid outlet 150 is respectively connected to the liquid outlets 30 of the plurality of first forced liquid-cooled heat pipes 110 and the first outlet driving unit, the first outlet driving unit drives the cooling liquid to enter the respective liquid channels from the liquid inlets of the plurality of first liquid-cooled forced heat pipes 110, and the cooling liquid takes away heat of the coil and flows to the first total liquid outlet 150 through the respective liquid outlets under the action of the first outlet driving unit, and is discharged through the first total liquid outlet 150. The second main liquid outlet 160 is connected to the liquid outlets 30 of the plurality of second forced liquid cooling heat pipes 120 and the second outlet driving unit, the second outlet driving unit drives liquid to enter respective liquid passing channels from the liquid inlets of the plurality of second forced liquid cooling heat pipes 120, and the liquid takes away heat of the coil and flows to the second main liquid outlet 160 through the respective liquid outlets under the action of the second outlet driving unit, and is discharged through the second main liquid outlet 160. As another embodiment of the present invention, the first main liquid outlet 150 and the second main liquid outlet 160 may not be provided, and accordingly, the outlet driving units are provided at the outlets of the first forced liquid-cooling heat pipe 110 and the second forced liquid-cooling heat pipe, which is complicated in structure and high in cost. In addition, in order to simplify the structure, a first total liquid inlet pipe 130 and a second total liquid inlet pipe 140 may be further provided, the first total liquid inlet pipe 130 is respectively connected to the liquid inlets 10 of the plurality of first forced liquid cooling heat pipes 110, and the second total liquid inlet pipe 140 is respectively connected to the liquid inlets 10 of the plurality of second forced liquid cooling heat pipes 120.
As another embodiment of the present invention, the power unit includes a first inlet driving unit, a second inlet driving unit, a first outlet driving unit and a second outlet driving unit, the forced liquid-cooled split vacuum pipeline structure further includes a first total liquid inlet pipe 130, a second total liquid inlet pipe 140, a first total liquid outlet pipe 150 and a second total liquid outlet pipe 160, the first total liquid inlet pipe 130 is respectively connected to the liquid inlets 10 of the plurality of first forced liquid-cooled heat pipes 110 and the first inlet driving unit, the first total liquid outlet pipe 150 is respectively connected to the liquid outlets 30 of the plurality of first forced liquid-cooled heat pipes 110 and the first outlet driving unit, under the action of the first inlet driving unit and the first outlet driving unit, the cooling liquid is pumped into the first total liquid inlet pipe 130, flows into the plurality of first forced liquid cooling heat conduction pipes 110 to take away heat of the coils, and is discharged through the first total liquid outlet pipe 150. The second total liquid inlet pipe 140 is connected to the liquid inlets 10 of the plurality of second forced liquid cooling heat pipes 120 and the second inlet driving unit, the second total liquid outlet pipe 160 is connected to the liquid outlets 30 of the plurality of second forced liquid cooling heat pipes 120 and the second outlet driving unit, under the action of the second inlet driving unit and the second outlet driving unit, the cooling liquid is pumped into the second total liquid inlet pipe 140, and the liquid flows into the plurality of second forced liquid cooling heat pipes 120 to take away the heat of the coil, and is discharged through the second total liquid outlet pipe 160.
Further, in the present invention, the first structure 200 and the second structure 300 may be connected using bolts. Specifically, as shown in fig. 1, the upper steel first structure 200 and the lower concrete second structure 300 are connected by a plurality of connecting bolts 700, before assembly, the connecting bolts 700 are embedded in the lower concrete second structure 300, the distance between the bolts is tested according to actual requirements, holes are drilled in the upper steel first structure 200 according to the distance between the bolts, gaps between the bolts 800 and the bolt holes are controlled, the connecting strength of the upper portion and the lower portion of the vacuum pipeline is enhanced, and the bearing integrity of the vacuum pipeline can be improved.
Further, in the present invention, in order to secure the workability of the forced liquid-cooled split vacuum pipe structure and prevent air leakage during the operation of the vacuum pipe structure, the liquid-cooled split vacuum pipe structure may be configured to further include a sealing member 600, the sealing member 600 being disposed at a connection position of the first structure 200 and the second structure 300, the sealing member 600 being used to achieve a sealing connection between the first structure 200 and the second structure 300.
By applying the configuration mode, the sealing element is arranged at the connecting position of the first structure and the second structure, so that air leakage can be effectively prevented when the vacuum pipeline is vacuumized and a subsequent vehicle runs in the vacuum pipeline, and the working performance of the vacuum pipeline is improved. As an embodiment of the present invention, a rubber strip may be used as the sealing member 600, in such a manner that, when the vacuum pipe is evacuated, the upper rigid first structure 200 is tightly pressed against the lower reinforced concrete second structure 300 by the sealing rubber strip structure under the action of several thousand tons of air pressure, thereby achieving a very good sealing effect. As other embodiments of the present invention, other low stiffness, hermetic materials may be used for the seal 600.
Further, in the present invention, in order to improve the strength of the vacuum pipe structure and increase the heat dissipation area of the forced liquid-cooled split vacuum pipe structure, the forced liquid-cooled split vacuum pipe structure may be configured to further include a reinforcing rib plate 900, the reinforcing rib plate 900 is welded to the outside of the pipe body, and the reinforcing rib plate 900 is used to improve the strength of the pipe body and increase the heat dissipation area of the liquid-cooled split vacuum pipe structure. As an embodiment of the present invention, a steel plate may be used as the reinforcing plate 900, and the reinforcing plate is welded to the pipe body.
In addition, in the present invention, in order to further improve the strength of the vacuum pipe structure and increase the heat dissipation area of the liquid-cooled split vacuum pipe structure, the liquid-cooled split vacuum pipe structure may be configured to include a plurality of reinforcing ribs 900, and the plurality of reinforcing ribs 900 may be welded to the pipe body at intervals along the length direction of the pipe body. As an embodiment of the present invention, a steel plate may be used as the reinforcing rib plate 900, and as shown in fig. 3 and 5, the forced liquid cooling type split vacuum pipe structure includes a plurality of reinforcing rib plates welded to the pipe body at regular intervals along the length direction of the pipe body. The mode can save the steel consumption, can increase the rigidity and the intensity of liquid cooling formula components of a whole that can function independently vacuum pipeline structure simultaneously, and in addition, the reinforcing rib plate structure can also increase the heat radiating area of pipeline, plays the effect of heat dissipation grid.
Further, in the present invention, in order to improve the sealing performance of the vacuum pipe, the liquid-cooled split vacuum pipe structure may be configured to further include an airtight coating 800, the airtight coating 800 being coated outside the second structure 300; the material of the second structure 300 further includes an air-tight agent. In an embodiment of the present invention, the material of the airtight coating 800 includes asphalt, iron sheet or steel plate, and the material of the second structure mainly includes concrete, and a certain amount of air-sealing agent is added in the concrete to enhance the air-tightness. As other embodiments of the present invention, other materials having an airtight function may be used as the airtight coating 800.
In addition, in the present invention, in order to avoid the formation of eddy currents in the liquid cooling pipes when the maglev train is in operation, the first forced liquid cooling heat pipe 110 and the second forced liquid cooling heat pipe 120 may be made of non-conductive materials, or the first total liquid inlet pipe 130, the second total liquid inlet pipe 140, the first total liquid outlet pipe 150, and the second total liquid outlet pipe 160 may be made of non-conductive materials.
In order to further understand the present invention, the structure of the forced liquid cooling split vacuum pipeline of the present invention will be described in detail with reference to fig. 1 to 3.
As shown in fig. 1 to 3, according to an embodiment of the present invention, there is provided a forced liquid-cooled split vacuum piping structure including a first structure 200, a second structure 300, a heat conducting element 400, a sealing member 600, an airtight coating layer 800, a reinforcing rib plate 900, a plurality of first forced liquid-cooled heat pipes 110, and a plurality of second forced liquid-cooled heat pipes 120, in which in the present embodiment, a sealing strip is used as the sealing member 600, a steel plate is used as the reinforcing rib plate 900, and the first structure 200 made of upper steel and the second structure 300 made of lower concrete are sealed with the sealing strip and connected with a connecting bolt 700.
The first steel structure 200 of upper portion mainly acts on providing airtight sealing for vacuum pipe, adopts the steel sheet panel beating to become domes, vertically welds multichannel deep floor along vacuum pipe, has saved the steel quantity like this and has increased the rigidity and the intensity of vacuum pipe structure simultaneously, and these deep floor structures have still increased the heat radiating area of pipeline in addition, play the effect of heat dissipation grid.
The second structure 300 made of lower reinforced concrete serves two purposes, that is, it forms a sealed vacuum pipe together with the first structure 200 made of upper reinforced concrete, and it serves as a track for running vehicles. Different from the concrete structure on a common high-speed railway, the sealing requirement is added to the concrete, so a certain amount of air-tight agent is added into the concrete, an air-tight coating 800 is laid and sprayed on the outer side of the concrete structure, and the air-tight coating 800 only needs to be made of materials with air-tight effect, such as asphalt, iron sheet or steel plate.
The upper steel-made first structure 200 and the lower steel-made second structure 300 are connected through the connecting bolts 700, the connecting bolts 700 are embedded in the lower steel-made second structure 300 in a pre-embedded mode, holes are drilled in the upper steel-made first structure 200 according to the actual distance size of the tested bolts, gaps between the bolts and bolt holes are controlled, the connecting rigidity of the upper portion and the lower portion is enhanced, and the bearing integrity of the pipeline is improved.
The sealing strip is made of low-rigidity and sealing materials such as rubber, after the interior of the pipeline is vacuumized, the steel structure at the upper part is tightly pressed on the second structure 300 made of reinforced concrete at the lower part through the sealing strip structure under the action of thousands of tons of air pressure, and a very good sealing effect can be achieved.
A plurality of first forced liquid cooling heat conduction pipes 110 and a plurality of second forced liquid cooling heat conduction pipes 120 are embedded in a second structure 300 made of reinforced concrete at the lower part, the plurality of first forced liquid cooling heat conduction pipes 110 are arranged close to a plurality of first electric coils 301a, the plurality of second forced liquid cooling heat conduction pipes 120 are arranged close to a plurality of second electric coils 302a, the lower parts of the plurality of first forced liquid cooling heat conduction pipes 110 are connected with a first total liquid inlet pipe 130, the upper parts of the plurality of first forced liquid cooling heat conduction pipes 110 are connected with a first total liquid outlet pipe 150, the lower parts of the plurality of second forced liquid cooling heat conduction pipes 120 are connected with a second total liquid inlet pipe 140, the upper parts of the plurality of second forced liquid cooling heat conduction pipes 120 are connected with a second total liquid outlet pipe 160, cooling liquid is pumped into the first total liquid inlet pipe 130 and the second total liquid outlet pipe 140 respectively by a water pump or other power, the cooling liquid flows into the plurality of first forced liquid cooling heat conduction pipes 110 and, therefore, the temperature of the coil is reduced, the reduction of the temperature is beneficial to improving the conductivity of the coil, improving the insulating property of the insulating layer of the coil and prolonging the service life of the coil.
In order to avoid the formation of eddy currents in the liquid cooling pipes during the operation of the maglev train, the first forced liquid cooling heat pipe 110 and the second forced liquid cooling heat pipe 120 may be made of non-conductive materials, or the first total liquid inlet pipe, the second total liquid inlet pipe, the first total liquid outlet pipe, and the second total liquid outlet pipe may be made of non-conductive materials.
In order to further enhance the heat conduction effect, a heat conduction material, such as heat conduction silicone grease or heat conduction silicone sheet, can be arranged between the forced liquid cooling heat conduction pipe and the electric coil, and aggregate with better heat conduction performance, such as iron oxide aggregate, can also be added into reinforced concrete near the electric coil.
The forced liquid cooling heat conduction pipe has various structural forms, fig. 5 shows another form, and the forced liquid cooling heat conduction pipe is basically characterized in that the forced liquid cooling heat conduction pipe is embedded in a second structure 300 made of lower reinforced concrete, the middle part of the forced liquid cooling heat conduction pipe is close to the electric coil to absorb heat generated by the electric coil, and the heat generated by the electric coil is led out by using cooling liquid which is forcibly pumped.
The vacuum duct structure of the present invention is formed by connecting two parts, i.e., a first structure 200 made of upper steel and a second structure 300 made of lower concrete, and the upper and lower structures are integrated by bolting. The height and width of the pipeline structure can be freely designed without mutual influence, and the vertical rigidity of the pipeline is effectively increased without increasing the transverse size and the floor area of a line.
In addition, the split type pipeline structure is very convenient to construct in an elevated road section, the concrete second structure at the lower part is sequentially hoisted to a pier by using a bridge girder erection machine, the concrete second structure forms a working line of the bridge girder erection machine, the steel first structure 200 at the upper part is installed in place one by using the bridge girder erection machine after the concrete second structure at the lower part is installed, and the construction difficulty is reduced, so that the construction cost is reduced.
In summary, the present invention provides a forced liquid cooling heat conduction pipe and a forced liquid cooling split vacuum pipeline structure, which have the following advantages compared with the prior art.
First, the split vacuum pipeline structure provided by the invention solves the problem of temperature rise caused by heating of the electric coil in the pipeline by introducing the forced liquid cooling heat conduction pipe, improves the performance of the electric coil, including reducing resistance and improving insulation performance, and prolongs the service life of the coil.
Secondly, the height and width of the split vacuum pipeline structure can be freely designed, the height of the pipeline can be increased according to the requirement, the vertical rigidity of the pipeline is improved, the transverse size is controlled, the use of steel and concrete materials is reduced, and the floor area of a line is reduced.
Thirdly, the split type vacuum pipeline structure provided by the invention is very convenient for construction of elevated road sections, firstly, the concrete structures at the lower part are sequentially hoisted to the bridge piers by using the bridge girder erection machine, the concrete structures at the lower part form a running working line of the bridge girder erection machine, and after the concrete structures at the lower part are installed, the bridge girder erection machine is used for installing the upper parts in place one by one, so that the construction difficulty and the construction cost are reduced.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
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 be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
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. The utility model provides a forced liquid cooling heat pipe, its characterized in that, forced liquid cooling heat pipe includes power pack, inlet (10), liquid passage (20) and liquid outlet (30), liquid passage (20) set up in vacuum pipeline structure and are close to the electric coil that is located vacuum pipeline structure, inlet (10) set up the one end of liquid passage (20), liquid outlet (30) set up the other end of liquid passage (20), power pack is used for driving cooling liquid to get into liquid passage (20) are followed with the liquid after absorbing the heat with the heat that absorbs electric coil gived off liquid outlet (30) are discharged.
2. The forced liquid cooling heat pipe as claimed in claim 1, wherein the power unit comprises an inlet driving unit and/or an outlet driving unit, the inlet driving unit is disposed at the liquid inlet (10), the outlet driving unit is disposed at the liquid outlet (30), and the inlet driving unit and/or the outlet driving unit is used for driving cooling liquid to enter the liquid channel (20) to absorb heat emitted from the electric coil and discharge the liquid after absorbing heat from the liquid channel (20).
3. The forced liquid cooling heat pipe of claim 2, wherein the inlet drive unit comprises a water pump and/or the outlet drive unit comprises a water pump.
4. A forced liquid cooled split vacuum pipe structure, characterized in that it comprises a first structure (200), a second structure (300) and a forced liquid cooled heat pipe (100) according to any one of claims 1 to 3, said forced liquid cooled heat pipe (100) is arranged in said second structure (300) and near to the electric coil in said second structure (300), said second structure (300) is used to provide the running track for the vehicle, said second structure (300) is arranged at the lower part of said first structure (200), said first structure (200) and said second structure (300) are connected to form a pipe body, said pipe body is used to provide the air tight vacuum pipe environment.
5. The structure of forced liquid cooled split vacuum pipes according to claim 4, characterized in that it further comprises a heat conducting element (400), said heat conducting element (400) being arranged between said electrical coil and said forced liquid cooled heat pipes (100); the material of the second structure (300) comprises reinforced concrete and heat conducting aggregate (500).
6. The structure of a forced liquid-cooled split vacuum pipe according to claim 4, wherein the structure of a forced liquid-cooled split vacuum pipe comprises a plurality of first forced liquid-cooled heat pipes (110) and a plurality of second forced liquid-cooled heat pipes (120), the first structure (200) is an arc-shaped structure, the second structure (300) is a U-shaped structure, the second structure (300) comprises a first sidewall (301) and a second sidewall (302), a plurality of first electric coils (301a) are continuously disposed in the first sidewall (301), and a plurality of first forced liquid-cooled heat pipes (110) and a plurality of first electric coils (301a) are disposed in a one-to-one correspondence; a plurality of second electric coils (302a) are continuously arranged in the second side wall (302), and the plurality of second electric coils (302a) are respectively arranged corresponding to the plurality of first electric coils (301a) and the plurality of second forced liquid cooling heat conduction pipes (120) in a one-to-one manner.
7. The structure of claim 6, wherein the power unit comprises a first inlet driving unit and a second inlet driving unit, the structure further comprises a first total liquid inlet pipe (130) and a second total liquid inlet pipe (140), the first total liquid inlet pipe (130) is connected to the liquid inlets (10) of the first plurality of forced liquid cooling heat pipes (110) and the first inlet driving unit, respectively, and the second total liquid inlet pipe (140) is connected to the liquid inlets (10) of the second plurality of forced liquid cooling heat pipes (120) and the second inlet driving unit, respectively.
8. The structure of a forced liquid-cooled split vacuum pipe as claimed in claim 6, wherein the power unit comprises a first outlet driving unit and a second outlet driving unit, the structure of a forced liquid-cooled split vacuum pipe further comprises a first total liquid outlet pipe (150) and a second total liquid outlet pipe (160), the first total liquid outlet pipe (150) is connected with the liquid outlets (30) of the plurality of first forced liquid-cooled heat pipes (110) and the first outlet driving unit, respectively, and the second total liquid outlet pipe (160) is connected with the liquid outlets (30) of the plurality of second forced liquid-cooled heat pipes (120) and the second outlet driving unit, respectively.
9. The structure of forced liquid-cooled split vacuum pipes as claimed in claim 6, wherein the power unit comprises a first inlet driving unit, a second inlet driving unit, a first outlet driving unit and a second outlet driving unit, the structure of forced liquid-cooled split vacuum pipes further comprises a first total liquid inlet pipe (130), a second total liquid inlet pipe (140), a first total liquid outlet pipe (150) and a second total liquid outlet pipe (160), the first total liquid inlet pipe (130) is connected with the liquid inlets (10) of the plurality of first liquid-cooled forced heat pipes (110) and the first inlet driving unit, respectively, the first total liquid outlet pipe (150) is connected with the liquid outlets (30) of the plurality of first liquid-cooled forced heat pipes (110) and the first outlet driving unit, respectively; the second total liquid inlet pipe (140) is respectively connected with the liquid inlets (10) of the second forced liquid cooling heat conduction pipes (120) and the second inlet driving unit, and the second total liquid outlet pipe (160) is respectively connected with the liquid outlets (30) of the second forced liquid cooling heat conduction pipes (120) and the second outlet driving unit.
10. A split vacuum pipe structure of forced liquid cooling as claimed in any one of claims 4 to 9, wherein said first forced liquid cooling heat pipe (110) and said second forced liquid cooling heat pipe (120) are made of non-conductive material.
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