CN109059629A - A kind of track of the electromagnetic railgun cooling based on deionized water - Google Patents
A kind of track of the electromagnetic railgun cooling based on deionized water Download PDFInfo
- Publication number
- CN109059629A CN109059629A CN201810950283.4A CN201810950283A CN109059629A CN 109059629 A CN109059629 A CN 109059629A CN 201810950283 A CN201810950283 A CN 201810950283A CN 109059629 A CN109059629 A CN 109059629A
- Authority
- CN
- China
- Prior art keywords
- track
- cooling
- pipe
- electromagnetic railgun
- deionized water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B6/00—Electromagnetic launchers ; Plasma-actuated launchers
- F41B6/006—Rail launchers
Abstract
The present invention relates to a kind of tracks of electromagnetic railgun cooling based on deionized water, belong to electromagnetic railgun technical field, and it is efficient cooling in real time to solve the problems, such as that existing track has no idea to carry out.Track interior opens up the cooling pipe of U-shaped；Cooling pipe includes: 1 water inlet pipe, 1 outlet pipe and connecting tube；Water inlet pipe and outlet pipe are arranged along the extending direction of track, and water inlet pipe is connected with outlet pipe by connecting tube；Deionized water cooling pipe is connected in cooling pipe to be connected to fluid circulation system.The present invention both ensure that good conductive effect, moreover it is possible to carry out implementation cooling to track, reduce the heat generated on track, the service life of track is not affected yet, the appearance for situations such as heat in bore can be dispersed in time, reduce ablation, improves efficiency when electromagnetic railgun continuously emits.
Description
Technical field
The present invention relates to electromagnetic railgun technical field more particularly to a kind of electromagnetic railguns cooling based on deionized water
Track.
Background technique
Electromagnetic railgun is a kind of new concept weapon, and cardinal principle is to generate electromagnetic force using pulse high current to accelerate bullet
Ball.The size of electromagnetic force is directly proportional to current squaring, electromagnetic force can be controlled by controlling the size of electric current, to control bullet
The accelerator of ball.
For continuously emitting electromagnetic railgun, in armature emission process, because of the electric Contacts of pivot rail, pivot rail is caused to connect
Contacting surface generates a large amount of heat, and running fire will cause in bore that heat dissipation is insufficient, cause raceway surface ablated etc., cause rail
Road surface damage.
Summary of the invention
In view of above-mentioned analysis, the present invention is intended to provide a kind of track of the electromagnetic railgun cooling based on deionized water,
To solve the problems, such as that it is efficient cooling in real time that existing track has no idea to carry out.
The purpose of the present invention is mainly achieved through the following technical solutions:
On the one hand, a kind of track of the electromagnetic railgun cooling based on deionized water, track interior open up the cooling tube of U-shaped
Road；Cooling pipe includes: 1 water inlet pipe, 1 outlet pipe and connecting tube；Water inlet pipe and outlet pipe are along the extending direction of track
Setting, and water inlet pipe is connected with outlet pipe by connecting tube；Deionized water cooling pipe is connected in cooling pipe to follow with liquid
Loop system connection.
In the embodiment of the present invention, water inlet pipe and outlet pipe are pierced by from track far from one end of gun muzzle；Connecting tube setting exists
Inside of the track close to one end of gun muzzle.
In the embodiment of the present invention, water inlet pipe and outlet pipe are disposed side by side on the plane for being parallel to the base surface of track and armature
On.
In the embodiment of the present invention, the center of the contact surface of track is equipped with curved protrusion, and curved protrusion is along the extension side of track
To setting；
Water inlet pipe and outlet pipe are arranged in the part that track is covered by curved protrusion, and water inlet pipe and outlet pipe about
The centre-line of track is symmetrical.
In the embodiment of the present invention, the distance at any point is all larger than on any point to cooling pipe on the contact surface of track
Or it is equal to 1cm.
In the embodiment of the present invention, the distance between any point is greater than or equal on any point to outlet pipe on water inlet pipe
1cm。
In the embodiment of the present invention, fluid circulation system includes water pump, water pot, cooling device；
Water pump is connect with water pot, and cooling device is arranged in water pot；Water pump is connect with water inlet pipe；Water pot and outlet pipe connect
It connects.
In the embodiment of the present invention, the guide surface of track and armature contacts is equipped with curved protrusion.
On the other hand, a kind of electromagnetic railgun, electromagnetic railgun include track and armature；Track is the base of previous embodiment
In the track of the cooling electromagnetic railgun of deionized water；Track is equipped with 2, and is arranged in parallel, and the curved protrusion of 2 tracks is opposite
Setting；Armature moves between 2 tracks.
In the embodiment of the present invention, the face of armature and rail contact is equipped with curve recess, and the shape of curve recess, size
It is identical as curved protrusion with position.
The beneficial effect of technical solution of the present invention is:
1, the present invention by being arranged cooling pipe in orbit, and deionized water is passed through in cooling pipe, both ensure that
Good conductive effect, moreover it is possible to implementation cooling be carried out to track, reduce the heat generated on track, also do not affect track
The appearance for situations such as service life can disperse the heat in bore in time, reduce ablation, improves electromagnetic railgun and continuously sends out
Efficiency when penetrating；
2, the present invention is by being reasonably laid out water inlet pipe and outlet pipe, in the case where not influencing current density,
Cooling effect is improved, phenomena such as ablation locally occurs is prevented.
It in the present invention, can also be combined with each other between above-mentioned each technical solution, to realize more preferred assembled schemes.This
Other feature and advantage of invention will illustrate in the following description, also, certain advantages can become from specification it is aobvious and
It is clear to, or understand through the implementation of the invention.The objectives and other advantages of the invention can by specification, claims with
And it is achieved and obtained in specifically noted content in attached drawing.
Detailed description of the invention
Attached drawing is only used for showing the purpose of specific embodiment, and is not to be construed as limiting the invention, in entire attached drawing
In, identical reference symbol indicates identical component.
Fig. 1 is the electromagnetic railgun schematic illustration of the embodiment of the present invention；
Fig. 2 is the track cross-sectional view of the embodiment of the present invention；
Fig. 3 is the track vertical section schematic diagram of the embodiment of the present invention；
Appended drawing reference:
1- track；2- armature；The 3- pulse power；4- water inlet pipe；5- outlet pipe；6- connecting tube.
Specific embodiment
Specifically describing the preferred embodiment of the present invention with reference to the accompanying drawing, wherein attached drawing constitutes the application a part, and
Together with embodiments of the present invention for illustrating the principle of the present invention, it is not intended to limit the scope of the present invention.
The working principle of electromagnetic railgun is very simple, is made of according to the law of electromagnetic induction in physics.Two guide rail phases
Mutually parallel, emitting module is slided along rail axis direction, and the effect of armature 2 is electric current between two guide rails of transmitting, and receives long-range navigation
The hereby effect of power pushes bullet to accelerate to gun muzzle, converts electromagnetic energy into kinetic energy.When transmitting, electric current is at the end of guide rail
End is passed through, and is flowed along a guide rail, by armature 2, is flowed back to along another guide rail, and closed circuit is constituted.High current flows through guide rail
Circuit induces powerful magnetic field, and the electric current in armature 2 and this magnetic field interaction produce very high promotion transmitting group
Part does forward the electromagnetic force accelerated, and when armature 2 reaches gun muzzle, the bullet of 2 front of armature 2 and armature is obtained at high speed,
Bullet is detached from circuit or track 1, starts free flight.
For continuously emitting electromagnetic railgun, in 2 emission process of armature, because of the electric Contacts of pivot rail, lead to pivot rail
Contact surface generates a large amount of heat, and running fire will cause in bore that heat dissipation is insufficient, cause 1 surface of track ablated etc., it makes
At 1 surface damage of track.For the damage for reducing track 1, the heat management in bore be it is critically important, effective mode is real-time
Track 1 is cooled down.
The main thought of the embodiment of the present invention is: in the case where not influencing current density, cooling pipe is opened to track 1,
Cooling pipe runs through entire track 1 since breech position, but does not arrive gun muzzle position, and turn is gone back at gun muzzle, is equivalent to whole
There are two cooling pipes for a track 1.
The embodiment of the invention provides a kind of track of electromagnetic railgun cooling based on deionized water, opened inside track 1
If the cooling pipe of U-shaped；Cooling pipe includes: 1 water inlet pipe, 4,1 outlet pipes 5 and connecting tube 6；Water inlet pipe 4 and outlet pipe 5
It is arranged along the extending direction of track 1, and water inlet pipe 4 and outlet pipe 5 are connected by connecting tube 6；Be connected in cooling pipe from
Sub- water cooling pipe is connected to fluid circulation system.
Situations such as purpose of cooling track 1 is the heat that can sufficiently disperse in time in bore, reduces 1 heat damage of track.
In the emission process of armature 2, it is passed through deionized water in the cooling pipe of 1 tail portion of track, track 1 is carried out at real-time cooling
Reason, cooling track 1 of the deionized water Jing Guo U-shaped, then the cooling pipe outflow from breech.
, it is preferable to use deionized water refers to the pure water eliminated in after ionic forms impurity, resistance in the embodiment of the present invention
Rate can reach 18 × 106Ω m or so, resistivity is less than 10-5The title electric conductor of Ω m, such as metal material.Resistivity is greater than
100×106The title insulator of Ω m, such as ceramics, rubber, plastic or other material.The title semiconducting insulation to fall between or half
Conductor, so deionized water is semiconductor, conductive capability is very weak, but can be conductive.
In order to further increase cooling pipe to the cooling effect of track 1, water inlet pipe 4 and outlet pipe 5 are far from track 1
One end of gun muzzle is pierced by；Track 1 is arranged in close to the inside of one end of gun muzzle in connecting tube 6.Design increases cold in track 1 in this way
But area, deionized water is recycled from breech, and i.e. easily recycling does not influence appearance again.
In actual use, more uniform generally for the current density improved in electromagnetic railgun, electromagnetic railgun track 1
Contact surface center be equipped with curved protrusion, curved protrusion along electromagnetic railgun track 1 extending direction be arranged.Curved protrusion energy
Enough weaken the phenomenon that electric current in electromagnetic railgun track 1 is as concentrating the quadrangle of track 1, makes the electricity in electromagnetic railgun track 1
Current density is more uniform.
In order to keep cooling effect of the cooling pipe on the same section of track 1 uniform as far as possible, in the embodiment of the present invention, into
Water pipe 4 and outlet pipe 5 are disposed side by side in the plane for being parallel to the base surface of track 1 and armature 2.And it is convex to comprehensively consider curved surface
The influence that the distribution of heat is generated to track 1 is played, water inlet pipe 4 and outlet pipe 5 are arranged at the portion that track 1 is covered by curved protrusion
In point, and water inlet pipe 4 and outlet pipe 5 about 1 axisymmetrical of track, i.e. water inlet pipe 4 after 180 ° of the axis rotation of track 1 and goes out
Water pipe 5 is completely coincident.
For track 1, cooling pipe opens up the conduction that cannot influence track 1 itself to electric current, in order to guarantee
The capacity usage ratio of electromagnetic railgun transmitting, in the embodiment of the present invention, on the contact surface of track 1 on any point to cooling pipe
The distance at any point is all larger than or is equal to 1cm；The distance between any point is big on any point to outlet pipe on water inlet pipe 4
In or equal to 1cm.Too small distance will lead to that local current densities in electromagnetic railgun track 1 are excessive, the high heat meeting of generation
Electromagnetic railgun track 1 is damaged, and if the area of section of electromagnetic railgun track 1 is too small, the energy benefit of transmitting can be reduced
With rate.
It is more smooth in order to recycle the deionized water in cooling pipe, in the embodiment of the present invention, fluid circulation system packet
Include water pump, water pot, cooling device；Water pump is connect with water pot, and cooling device is arranged in water pot；Water pump is connect with water inlet pipe 4；Water
Tank is connect with outlet pipe 5.Water pot is for storing deionized water；It is that deionized water is transported to pressure from the low place of pressure
High place, and low temperature is kept in deionized water transmission process, reduce cold damage to the greatest extent.Design increases in track 1 in this way
Cooling area, deionized water is recycled from breech does not influence appearance, and is easy the used deionized water of recycling.
Present invention aims at by opening cooling pipe in track 1, the guide rail with cooling pipe is in pivot rail contact surface
The lower section of the curved protrusion at place, because cooling duct is a U-shaped channel, to reduce the shadow that cooling pipe is distributed current density
It rings, opens cooling pipe at the top at least 1cm from curved protrusion, and cooling pipe is mainly for curved protrusion and two side planes
Junction.In 2 motion process of armature, by water pump by the deionized water in deionization water pot it is lasting be sent to track 1
In cooling pipe, achieve the effect that cooling to track 1.
It opens that U-shaped cooling pipe is more troublesome in track 1, is implemented in the direct aperture of track 1 of forming, technique
It is more difficult.The embodiment of the present invention can the aperture in 1 process of track, or two perforations are first stamped on the track 1 of forming
Hole, then two holes are penetrated through in muzzle end of tube, have then blocked up extra part.It is continual to be passed through in cooling pipe
Ion water energy is continual to cool down to track 1, reduces the energy loss on track 1 and reduces the feelings such as 1 heat damage of track
Condition increases the acceleration of armature 2, to increase the efficiency of system.
Another embodiment of the present invention provides a kind of electromagnetic railgun, electromagnetic railgun includes track 1 and armature 2；
Track 1 is the track of the electromagnetic railgun cooling based on deionized water of previous embodiment；Track 1 is equipped with 2, and sets in parallel
It sets, the curved protrusion of 2 tracks 1 is oppositely arranged；Armature 2 moves between 2 tracks 1.
The course of work are as follows:
Circuit conducting, the pulse power 3 provide electric current, and electric current passes sequentially through the first track 1, armature 2 and the second track 1, return
To the pulse power 3, high current flows through rail circuit and induces powerful magnetic field, the electric current in armature 2 and this magnetic field phase interaction
With, it produces very high promotion emitting module and does the electromagnetic force accelerated forward, when armature 2 reaches gun muzzle, 2 He of armature
The bullet of 2 front of armature obtains at high speed, and bullet is detached from circuit or track 1, starts free flight.
In order to keep the transmission of electric current more efficient, the face that armature 2 is contacted with track 1 is equipped with curve recess, and curved surface is recessed
Sunken shape, size and position are identical as curved protrusion.
In conclusion the embodiment of the invention provides a kind of track of electromagnetic railgun cooling based on deionized water, this
Invention is passed through deionized water by the way that cooling pipe is arranged in orbit in cooling pipe, both ensure that good conductive effect
Fruit, moreover it is possible to implementation cooling be carried out to track, reduce the heat generated on track, also do not affect the service life of track, energy
The appearance for situations such as dispersing the heat in bore in time, reducing ablation, improves efficiency when electromagnetic railgun continuously emits；
The present invention is by being reasonably laid out water inlet pipe and outlet pipe, in the case where not influencing current density, improves cooling
Effect prevents phenomena such as ablation locally occurs.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of track of the electromagnetic railgun cooling based on deionized water, which is characterized in that open up U inside the track (1)
The cooling pipe of shape；The cooling pipe includes: water inlet pipe (4), outlet pipe (5) and connecting tube (6)；The water inlet pipe (4) and
Outlet pipe (5) is arranged along the extending direction of the track (1), and the water inlet pipe (4) and outlet pipe (5) pass through connecting tube
(6) it connects；Deionized water is connected in the cooling pipe, the cooling pipe is connected to fluid circulation system.
2. the track of the electromagnetic railgun cooling based on deionized water according to claim 1, which is characterized in that it is described into
Water pipe (4) and outlet pipe (5) are pierced by from the track (1) far from one end of gun muzzle；The connecting tube (6) is arranged in the rail
Inside of the road (1) close to one end of gun muzzle.
3. the track of the electromagnetic railgun cooling based on deionized water according to claim 2, which is characterized in that it is described into
Water pipe (4) and outlet pipe (5) are disposed side by side in the plane for being parallel to the contact surface of the track (1) and armature (2).
4. the track of the electromagnetic railgun cooling based on deionized water according to claim 3, which is characterized in that described to connect
The center of contacting surface is equipped with curved protrusion, and the curved protrusion is arranged along the extending direction of the track (1)；
The water inlet pipe (4) and outlet pipe (5) are arranged in the part that the track (1) is covered by the curved protrusion, and
The water inlet pipe (4) and outlet pipe (5) are about the track (1) axisymmetrical.
5. the track of the electromagnetic railgun cooling based on deionized water according to claim 4, which is characterized in that described to connect
The distance at any point is all larger than or is equal to 1cm on any point to the cooling pipe in contacting surface.
6. the track of the electromagnetic railgun cooling based on deionized water according to claim 5, which is characterized in that it is described into
The distance between any point is greater than or equal to 1cm on any point to the outlet pipe (5) on water pipe (4).
7. the track of the electromagnetic railgun cooling based on deionized water according to claim 6, which is characterized in that the liquid
Systemic circulatory system includes water pump, water pot, cooling device；
The water pump is connect with water pot, and the cooling device is arranged in the water pot；The water pump and the water inlet pipe (4) are even
It connects；The water pot is connect with the outlet pipe (5).
8. the track of the electromagnetic railgun cooling based on deionized water according to claim 7, which is characterized in that the rail
The contact surface in road (1) is equipped with curved protrusion.
9. a kind of electromagnetic railgun, which is characterized in that the electromagnetic railgun includes track (1) and armature (2)；The track
It (1) is the track of any electromagnetic railgun cooling based on deionized water of claim 1-8；The track (1) is equipped with 2
Item, and be arranged in parallel, the curved protrusion of 2 tracks (1) is oppositely arranged；The armature (2) moves between 2 tracks (1).
10. electromagnetic railgun described in -9 according to claim 1, which is characterized in that the armature (2) contacted with track (1)
Face is equipped with curve recess, and the shape of the curve recess, size and position are identical as the curved protrusion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950283.4A CN109059629B (en) | 2018-08-20 | 2018-08-20 | Track of electromagnetic rail gun based on deionized water cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810950283.4A CN109059629B (en) | 2018-08-20 | 2018-08-20 | Track of electromagnetic rail gun based on deionized water cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109059629A true CN109059629A (en) | 2018-12-21 |
| CN109059629B CN109059629B (en) | 2021-04-16 |
Family
ID=64687630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810950283.4A Active CN109059629B (en) | 2018-08-20 | 2018-08-20 | Track of electromagnetic rail gun based on deionized water cooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109059629B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834377A (en) * | 2021-10-12 | 2021-12-24 | 天津大学 | Inside cooling system based on electromagnetism track temperature distribution |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02106698A (en) * | 1988-10-14 | 1990-04-18 | Mitsubishi Heavy Ind Ltd | Electromagnetic acceleration device |
| CN103617941A (en) * | 2013-11-14 | 2014-03-05 | 中国科学院等离子体物理研究所 | Liquid metal two-stage cooling method for high current ion source electrode |
| CN104347125A (en) * | 2013-07-31 | 2015-02-11 | 华北电力大学 | Double-channel natural circulation system device |
| CN104576269A (en) * | 2013-10-24 | 2015-04-29 | 北京中科信电子装备有限公司 | Cooling mechanism for horizontal ion-beam focusing device |
| US20160290758A1 (en) * | 2014-03-28 | 2016-10-06 | Borja SIERRA IZQUIERDO | Barrel and an electromagnetic projectile launching system |
| CN207099537U (en) * | 2017-08-16 | 2018-03-13 | 中国原子能科学研究院 | A kind of high-voltage isolating powerful device cooling system |
| CN108307577A (en) * | 2018-01-24 | 2018-07-20 | 中国原子能科学研究院 | A kind of high-pressure multi-stage accelerates the cooling structure and current potential distribution method of electrode |
-
2018
- 2018-08-20 CN CN201810950283.4A patent/CN109059629B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02106698A (en) * | 1988-10-14 | 1990-04-18 | Mitsubishi Heavy Ind Ltd | Electromagnetic acceleration device |
| CN104347125A (en) * | 2013-07-31 | 2015-02-11 | 华北电力大学 | Double-channel natural circulation system device |
| CN104576269A (en) * | 2013-10-24 | 2015-04-29 | 北京中科信电子装备有限公司 | Cooling mechanism for horizontal ion-beam focusing device |
| CN103617941A (en) * | 2013-11-14 | 2014-03-05 | 中国科学院等离子体物理研究所 | Liquid metal two-stage cooling method for high current ion source electrode |
| US20160290758A1 (en) * | 2014-03-28 | 2016-10-06 | Borja SIERRA IZQUIERDO | Barrel and an electromagnetic projectile launching system |
| CN207099537U (en) * | 2017-08-16 | 2018-03-13 | 中国原子能科学研究院 | A kind of high-voltage isolating powerful device cooling system |
| CN108307577A (en) * | 2018-01-24 | 2018-07-20 | 中国原子能科学研究院 | A kind of high-pressure multi-stage accelerates the cooling structure and current potential distribution method of electrode |
Non-Patent Citations (2)
| Title |
|---|
| 李杰: "《航母王者：福特级航母今生来世》", 31 March 2017, 北京：中国科学技术出版社 * |
| 林灵淑 等: "电磁发射装置轨道热管理冷却管道的力学设计", 《强激光与粒子束》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113834377A (en) * | 2021-10-12 | 2021-12-24 | 天津大学 | Inside cooling system based on electromagnetism track temperature distribution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109059629B (en) | 2021-04-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109059629A (en) | A kind of track of the electromagnetic railgun cooling based on deionized water | |
| CN109059630A (en) | It is a kind of based on micro- tapered electromagnetic railgun track | |
| CN112099591A (en) | Immersed jet flow phase change liquid cooling system for high heat flux density super-calculation server | |
| CN105423810A (en) | Electromagnetic propulsion device | |
| CN109059628A (en) | A kind of electromagnetic railgun track with cooling hole | |
| CN109029092A (en) | A kind of electromagnetic railgun track, armature and electromagnetic railgun | |
| CN109163603A (en) | A kind of the track cooling system and cooling means of electromagnetic railgun | |
| CN112099593A (en) | Immersion liquid cooling heat dissipation system for high heat flux server | |
| CN112099592B (en) | Self-circulation immersion jet flow phase change liquid cooling heat dissipation device inside blade server shell | |
| CN209013545U (en) | It is a kind of for cooling down the device of electromagnetic railgun track | |
| CN216625469U (en) | Three-phase asynchronous motor's heat radiation structure | |
| CN206347712U (en) | Electric cabinet and air conditioner | |
| CN208765576U (en) | A kind of track cooling device of electromagnetic railgun | |
| CN105931934B (en) | Double helix tank type strong current electron beam collector | |
| CN109141110B (en) | System for cooling electromagnetic rail gun rail and cooling method | |
| CN112026795A (en) | Low-vacuum pipeline applicable to high-speed train | |
| WO2017215162A1 (en) | Cooling system of working medium contact type for high-power electrical device | |
| US20220315066A1 (en) | Heat dissipation system for high-speed train running in low-vacuum tube | |
| CN211425204U (en) | Electromagnetic track structure | |
| CN110571207B (en) | Liquid metal composite micro-nano particle fluid device | |
| CN114894020A (en) | Double-nozzle spray cooling circulation device and control method thereof | |
| CN110207535A (en) | A kind of electromagnetic path surface spraying cooling system | |
| CN111994098A (en) | Low-vacuum pipeline high-speed train system | |
| CN209071024U (en) | A kind of excellent heat radiating type midium voltage cable of highly resistance | |
| CN216648911U (en) | High-efficient heat dissipation integral type cubical switchboard |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |