CN220155481U - Electron beam collector with U-shaped water channel - Google Patents

Abstract

The utility model relates to an electron beam collector with a U-shaped water channel, which comprises a sleeve, a collector base and a flange structure, wherein the collector base comprises a bulge and a chassis connected with the bulge, the sleeve comprises an outer cylinder and an inner conductor connected in an inner cavity of the outer cylinder, the inner conductor is of a tubular structure with a closed top end, and the outer diameter of the upper end of the inner conductor is smaller than that of the lower end of the inner conductor; the shape of the lumen of the inner conductor is matched with the shape of the bulge, and the inner conductor is sleeved on the bulge; the flange structure is sleeved on the periphery of the sleeve and comprises a first flange plate, a second flange plate and a flange pipe for connecting the first flange plate and the second flange plate; the peripheral wall of the flange pipe is provided with a U-shaped water channel, one end of the U-shaped water channel is connected with a water inlet, and the other end of the U-shaped water channel is connected with a water outlet. The U-shaped water channel is adopted to exchange heat for the collector, so that the cooling liquid can rapidly and uniformly cool and dissipate heat of the peripheral wall of the flange pipe, the working temperature of the collector can be obviously reduced, and the service life of the collector is prolonged.

Description

Electron beam collector with U-shaped water channel

Technical Field

The utility model relates to the technical field of high-power microwave devices, in particular to an electron beam collector with a U-shaped water channel.

Background

The high-power microwave device consists of an injection electron gun, a resonant cavity, a focusing magnetic field system, a collector for collecting electron beams and the like. The high-energy electron beam generated by the electron gun interacts with the electromagnetic wave of the resonant cavity to transfer part of energy to the electromagnetic wave, and the high-energy electron beam after the interaction is absorbed by the collector. The electron beam carries high energy, so that the electron beam absorbed by the collector has high energy, and the high energy electron beam bombards the collector to generate secondary electrons and also causes the local temperature at the bombarded position to rise sharply. If the structure or the heat dissipation mode of the collector is unreasonably designed, the local temperature of the collector is too high, so that the collector is subjected to extremely high-temperature thermal desorption and material vaporization, the vacuum environment is polluted, harmful plasmas are more likely to be generated, and the stable operation of the high-power microwave device is seriously affected.

The current heat dissipation treatment for the collector of the high-power microwave device mainly comprises the following aspects: 1. changing the shape of the inner wall of the collector, such as ku-band electron collector designed by national defense science and technology university [ making the ku-band low magnetic field coaxial transit time oscillator study [ D ], reducing the power density, secondary electron emission and electron beam reflux by increasing the electron beam deposition area of the collector, thereby achieving the purpose of increasing the output power, but because the deposited power is larger, in order to reduce the temperature rise of the collector, a heat dissipation structure is required to be added to dissipate the heat; 2. the support and water cooling integrated high-current electron beam coaxial collector [ giant jinchuan ] designed by national defense science and technology university is adopted for water cooling and heat dissipation, a support rod is changed into a water inlet and a water outlet, the spiral water channel structure is designed on the surface of the collector to dissipate heat of the collector, but a larger requirement is provided for the strength of a hollow support rod, and meanwhile, the irregular collector structure is difficult to design and process a reasonable spiral water channel sometimes; 3. because the energy is larger during the collection of the single-injection high-power electron beam, the temperature of the collector is too high during the heat deposition, and a plurality of collectors can be adopted to collect each electron beam respectively for the heat dissipation research of the multi-injection device, so that the power dispersion is realized, the thermal deposition power of the collector can be reduced, the influence caused by severe temperature rise is weakened, but the structure of the multi-injection collector is more complex.

Disclosure of Invention

The utility model aims to provide an electron beam collector with a U-shaped water channel, which can solve the problems. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides an electron beam collector with a U-shaped water channel, which comprises a sleeve, a collector base and a flange structure, wherein the collector base is of a T-shaped structure and comprises a bulge and a chassis connected with the bulge, the sleeve comprises an outer cylinder and an inner conductor connected in an inner cavity of the outer cylinder, the inner conductor is of a tubular structure with a closed top end, and the outer diameter of the upper end of the inner conductor is smaller than the outer diameter of the lower end of the inner conductor; the shape of the lumen of the inner conductor is matched with the shape of the bulge, and the inner conductor is sleeved on the bulge; the flange structure is sleeved on the periphery of the sleeve and comprises a first flange plate, a second flange plate and a flange pipe for connecting the first flange plate and the second flange plate;

the periphery wall of the flange pipe is provided with a U-shaped water channel, one end of the U-shaped water channel is connected with a water inlet, the other end of the U-shaped water channel is connected with a water outlet, and cooling liquid enters the U-shaped water channel through the water inlet and flows out of the water outlet.

As a preferable scheme, the U-shaped water channel is an annular hole cavity formed in the peripheral wall of the flange pipe, the U-shaped water channel is circumferentially distributed along the peripheral wall of the flange pipe and is distributed from top to bottom in a layered manner, the U-shaped water channels of the upper layer and the lower layer are communicated through longitudinal water channels, the longitudinal water channels are longitudinal hole cavities formed in the peripheral wall of the flange pipe, the longitudinal water channels are in a linear shape, and the U-shaped water channels are in a circular shape.

Further, the water outlet and the water inlet are respectively arranged at the left side and the right side of the peripheral wall of the flange pipe, and the water outlet is higher than the water inlet and is arranged in a diagonal line.

As another preferable scheme, the U-shaped water channels are cavities formed in the peripheral wall of the flange pipe, the U-shaped water channels are longitudinally distributed along the peripheral wall of the flange pipe, the longitudinally distributed U-shaped water channels are n-shaped, a plurality of longitudinally distributed U-shaped water channels are uniformly distributed on the peripheral wall of the flange pipe, and a plurality of longitudinally distributed U-shaped water channels are communicated through grooves formed in the bottom of the flange pipe.

Further, the water outlet and the water inlet are both arranged on a second flange plate at the bottom of the flange structure, and a water inlet channel communicated with the water inlet and a water outlet channel communicated with the water outlet are also arranged on the second flange plate; the other end of the water inlet water channel is communicated with the starting end of the U-shaped water channel, and the other end of the water outlet water channel is communicated with the ending end of the U-shaped water channel.

According to the electron beam collector with the U-shaped water channel, the second flange plate is connected with the chassis, when the U-shaped water channel is circumferentially distributed along the peripheral wall of the flange pipe, the chassis is connected to the outer side of the second flange plate, the inner cavity of the second flange plate is attached to the outer wall of the sleeve, an annular groove matched with the bottom of the sleeve is formed in the chassis, and the bottom of the sleeve is clamped in the annular groove;

when the U-shaped water channel is longitudinally distributed along the peripheral wall of the flange pipe, the chassis is connected to the inner side of the second flange plate, and the periphery of the chassis is attached to the inner cavity pipe wall of the flange pipe.

Further, the inner conductor comprises an upper part and a lower part, the lower part of the inner conductor is a cylindrical pipe with an open lower end, the upper part of the inner conductor is a conical pipe structure with a closed top end, the outer diameter of the lower end of the conical pipe is larger than that of the upper end, and the lower end of the conical pipe is connected with the upper end of the cylindrical pipe; the lower end of the cylindrical pipe is connected with the lower end of the conical hole.

As a preferred scheme, the pipe wall of the flange pipe is of a double-layer structure and comprises an inner pipe connected with a first flange plate and a second flange plate into a whole, and an outer pipe sleeved on the outer wall of the inner pipe, wherein the U-shaped water channel is a groove formed in the outer wall of the inner pipe, and when the outer pipe is sleeved on the outer wall of the inner pipe in a fitting manner, the inner wall of the outer pipe and the groove opening of the U-shaped water channel form a sealing structure, so that a U-shaped water channel capable of supplying cooling liquid to flow is formed.

As another preferable scheme, the pipe wall of the flange pipe is of a double-layer structure and comprises an inner pipe connected with the first flange plate and the second flange plate into a whole and an outer pipe sleeved on the outer side of the inner pipe, an interlayer is arranged between the inner pipe and the outer pipe, and the U-shaped water channel is a pipeline penetrating through the interlayer.

Further, the sleeve is made of graphite material, and the collector base and the flange structure are made of metal material, preferably metal copper.

The utility model can reduce secondary electron emission coefficient by absorbing electron beams through the inner wall of the sleeve made of graphite material, and simultaneously strengthen heat conduction, the substrate and waterway structure adopting metallic copper as the inner conductor of the sleeve strengthen structural strength, ensure the air tightness of a radiating waterway, and the peripheral wall of the flange pipe adopts a U-shaped radiating waterway structure with multiple parallel design, so that cooling fluid enters the water inlet channel from the water inlet, then flows into the U-shaped waterway structure, flows out from the water outlet channel, and finally is discharged from the water outlet. The U-shaped water channel can enable cooling liquid to flow around the periphery of the flange pipe for heat dissipation, and therefore the utilization rate of the cooling liquid and the heat dissipation contact area are improved.

In summary, in some possible implementation manners, the inner conductor includes a circular truncated cone structure and a cylindrical structure connected with the circular truncated cone structure, and the thickness of graphite is 2mm, so that secondary electrons can be absorbed to a certain extent, and the backflow of the secondary electrons is reduced. The inner conductor consists of a front end round table and a rear end cylinder, wherein the outer diameter of the front end of the round table is 9.38mm, the outer diameter of the rear end of the round table is 25.46mm, and the distance between the front center and the rear center is 27.86mm. The outer diameter of the rear end cylinder is 9.38mm, and the length is 15.05mm.

In summary, in some possible implementation manners, the outer cylinder of the sleeve includes a first structure, a second structure and a third structure that are sequentially connected, where the first structure is a hollow round table structure, the second structure is a cylindrical structure, a big head end of the round table shape is connected with the cylindrical second structure, the third structure is that a conical hole is formed at the bottom of the second structure, and the aperture of the upper end of the conical hole is larger than that of the lower end of the conical hole; the inner conductor is connected to the lower end of the conical hole, wherein the radius of the front end of the first structure is 8.5mm, the radius of the rear end of the first structure is 18.5mm, and the distance between the front center and the rear center is 27.47mm; the radius of the second structure is 18.5mm, and the length is 24.53mm; the radius of the front end of the third structure is 18.5mm, the radius of the rear end is 12.665mm, the distance between the front center and the rear center is 10.28mm, the thicknesses of the front end and the middle part can be determined according to the intensity of the electron beam and the distribution of the electron beam, and the whole thickness is uniform and is 2mm.

In summary, in some possible implementations, the material in the middle of the inner conductor is oxygen-free copper, and the material in the outer side is graphite.

In summary, in some possible implementation manners, the U-shaped water channels are disposed between two axially symmetrical longitudinal water channels at equal intervals, and the U-shaped water channels are circumferentially or radially disposed on the outer layer of the sleeve, where the water inlet and outlet channels may be axial or annular, and if multiple parallel U-shaped water channels are circumferentially distributed, the longitudinal water channels need to be axially disposed.

In summary, in some possible implementations, the waterway includes a uniform section and a gradual section connected to the uniform section, and the length dimension of the structure is determined by the intensity of the electron beam and the working condition of the device. In order to uniformly distribute the fluid in each part of the collector during the heat dissipation process, the positions of water inlets and water outlets of the collector need to be reasonably arranged.

In summary, in some possible implementations, the outer cylinder of the sleeve coincides with the inner conductor, and the center lines of the first flange, the second flange, and the chassis overlap.

The beneficial effects of the utility model are as follows:

the U-shaped water channel is adopted to exchange heat for the collector, so that the cooling liquid can rapidly and uniformly cool and dissipate heat of the peripheral wall of the flange pipe, the working temperature of the collector can be obviously reduced, and the service life of the collector is prolonged.

According to the electron beam collector with the U-shaped water channel, provided by the utility model, the deposition power of a single collector can be reduced by adopting the electron beam collector of multi-beam electron beams for scattered collection.

The U-shaped water channel is adopted to conduct heat convection on the collector, and the heat dissipation device has remarkable advantages in the aspect of heat dissipation of the collector, and when the heat collection power of the inner conductor heat sink of the collector is smaller, the temperature rise is lower, and only the outer wall of the collector is required to conduct heat dissipation, a U-shaped water channel heat dissipation structure distributed along the circumference can be adopted.

According to the utility model, the secondary electron emission coefficient is reduced through the inner wall of the graphite, the influence of secondary electrons on the beam action of the device is reduced, and in addition, the graphite is taken as the inner wall and the metal copper is taken as the substrate, so that the secondary electron reflux can be reduced to a certain extent, and the beam action efficiency of the device is improved.

The utility model adopts the U-shaped water channel and designs the two water inlet and outlet channels, so that cooling fluid is uniformly distributed, the flow velocity of each part is relatively uniform, and the aim of enhancing convection heat exchange is fulfilled.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a three-dimensional structure of an electron beam collector with a U-shaped channel according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view of an electron beam collector with a U-shaped channel according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a waterway structure of an electron beam collector with a U-shaped waterway according to an embodiment of the present utility model;

FIG. 4 is a view showing an image of an electron beam collector temperature rise with a U-shaped channel according to an embodiment of the present utility model;

FIG. 5 is a graphical representation of the temperature rise of an electron beam collector fluid with a U-shaped waterway according to an embodiment of the present utility model;

FIG. 6 is a cross-sectional view of an electron beam collector with an axial U-shaped channel according to an embodiment of the present utility model;

fig. 7 is a water path structure diagram of an electron beam collector with an axial U-shaped water channel according to an embodiment of the present utility model.

The marks in the figure: 1. an inner conductor; 2. a sleeve; 3. u-shaped water channel; 4. a longitudinal waterway; 5. a water outlet; 6. a water inlet; 7. a first flange; 8. a second flange; 9. a chassis; 10. a water outlet channel; 11. a water inlet channel; 12. the starting end of the U-shaped water channel; 13. the end of the U-shaped water channel; 20. an outer cylinder; 30. a protrusion; 40. and (3) a flange pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

as shown in fig. 1 to 5, the present embodiment provides an electron beam collector with a U-shaped water channel, which includes a sleeve 2, a collector base and a flange structure, wherein the collector base is a T-shaped structure, and includes a protrusion 30 and a bottom plate 9 connected with the protrusion 30, the sleeve 2 includes an outer cylinder 20 and an inner conductor 1 connected in an inner cavity of the outer cylinder 20, the inner conductor 1 is a tubular structure with a closed top end, and an outer diameter of an upper end of the inner conductor 1 is smaller than an outer diameter of a lower end; the shape of the tube cavity of the inner conductor 1 is matched with the shape of the bulge 30, and the inner conductor 1 is sleeved on the bulge 30; the flange structure is sleeved on the periphery of the sleeve 2 and comprises a first flange 7, a second flange 8 and a flange pipe 40 for connecting the first flange 7 and the second flange 8; a U-shaped water channel 3 is arranged on the peripheral wall of the flange pipe 40, one end of the U-shaped water channel 3 is connected with a water inlet 6, the other end is connected with a water outlet 5, and cooling water enters the U-shaped water channel 3 through the water inlet 6 and flows out of the water outlet 5.

Further, the U-shaped water channel 3 is an annular cavity formed in the peripheral wall of the flange pipe 40, the U-shaped water channel 3 is circumferentially distributed along the peripheral wall of the flange pipe 40 and is distributed from top to bottom in layers, the U-shaped water channels 3 of the upper layer and the lower layer are communicated through the longitudinal water channels 4, the longitudinal water channels 4 are longitudinal cavities formed in the peripheral wall of the flange pipe 40, the longitudinal water channels 4 are in a straight line shape, and the U-shaped water channels 3 are in a circular ring shape.

In this embodiment, the water outlet 5 and the water inlet 6 are respectively disposed at the left and right sides of the peripheral wall of the flange pipe 40, and the water outlet 5 is higher than the water inlet 6 and is disposed diagonally. Of course, in other embodiments, the positions of the water outlet 5 and the water inlet 6 may be interchanged.

Specifically, the inner conductor 1 comprises an upper part and a lower part, the lower part of the inner conductor 1 is a cylindrical pipe with an open lower end, the upper part of the inner conductor 1 is a conical pipe structure with a closed top end, the outer diameter of the lower end of the conical pipe is larger than that of the upper end, and the lower end of the conical pipe is connected with the upper end of the cylindrical pipe; the lower end of the cylindrical pipe is connected with the lower end of the conical hole.

The inner conductor 1 is composed of a front end truncated cone structure and a rear end cylindrical structure, the outer diameter of the front end of the truncated cone is 9.38mm, the outer diameter of the rear end of the truncated cone is 25.46mm, and the distance between the front center and the rear center is 27.86mm. The outer diameter of the rear end cylinder is 9.38mm, and the length is 15.05mm.

In the present embodiment, the inner conductor 1 has an oxygen-free copper substrate in the middle, graphite in the outer side, and the thickness of graphite is 2mm. Of course, in other embodiments, the whole inner conductor 1 may be made of graphite, the bump 30 is made of oxygen-free copper, and the graphite inner conductor 1 is sleeved on the oxygen-free copper bump 30. The inner conductor 1 can absorb secondary electrons to some extent and reduce the backflow of the secondary electrons.

In some alternative embodiments, the sleeve 2 comprises a first structure, a second structure and a third structure which are sequentially connected, wherein the first structure is a hollow round platform-shaped structure, the second structure is a cylindrical structure, the big head end of the round platform-shaped structure is connected with the cylindrical second structure, the third structure is a conical hole formed in the bottom of the second structure, and the aperture of the upper end of the conical hole is larger than that of the lower end of the conical hole; the inner conductor 1 is connected to the lower end of the conical hole, the radius of the front end of the first structure is 8.5mm, the radius of the rear end of the first structure is 18.5mm, and the distance between the front center and the rear center is 27.47mm; the radius of the second structure is 18.5mm, and the length is 24.53mm; the radius of the front end of the third structure is 18.5mm, the radius of the rear end is 12.665mm, the distance between the front center and the rear center is 10.28mm, the thicknesses of the front end and the middle part can be determined according to the intensity of the electron beam and the distribution of the electron beam, and the whole thickness is uniform and is 2mm.

In this example, when the electron beam voltage was 450kV, the electron beam current was 700A, the inlet flow rate was 2m/s, and the collector maximum temperature was 58.2 ℃.

Specifically, the U-shaped water channels 3 are equidistantly arranged between two axially arranged longitudinal water channels 4 at intervals, the U-shaped water channels 3 are circumferentially arranged on the outer layer of the sleeve 2 and are annular, and if multiple parallel U-shaped water channels 3 are circumferentially distributed, the longitudinal water channels 4 need to be axially arranged. The U-shaped water channel 3 can limit the fluid in a smaller area for flowing and radiating, so that the utilization rate of the fluid and the radiating contact area are improved.

It should be noted that, in order to make the fluid uniformly distributed in each portion of the collector during the heat dissipation process, the position of the water inlet and outlet 5 of the collector needs to be reasonably installed. The water inlet and outlet 5 of the collector is along the gravity direction and is away from the gravity direction, so that the fluid inside the collector can flow uniformly, and the heat dissipation effect is enhanced.

As an embodiment, the wall of the flange pipe 40 is of a double-layer structure, and comprises an inner pipe integrally connected with the first flange plate 7 and the second flange plate 8, and an outer pipe sleeved on the outer wall of the inner pipe, the U-shaped water channel 3 is a groove formed on the outer wall of the inner pipe, and when the outer pipe is sleeved on the outer wall of the inner pipe in a fitting manner, the inner wall of the outer pipe and the groove opening of the U-shaped water channel 3 form a sealing structure, so that the U-shaped water channel 3 capable of flowing cooling water is formed.

As another embodiment, the wall of the flange pipe 40 is of a double-layer structure, and comprises an inner pipe integrally connected with the first flange plate 7 and the second flange plate 8, and an outer pipe sleeved outside the inner pipe, an interlayer is arranged between the inner pipe and the outer pipe, and the U-shaped water channel 3 is a pipeline penetrating through the interlayer.

Specifically, the waterway comprises a uniform section and a gradual change section connected with the uniform section, the length of the uniform section is 22.85mm-22.87mm, the length of the gradual change section is 23.63-23.65mm, the axial waterway 4 is divided into the uniform section and the gradual change section, the widths of the two waterways are 3.52mm, the length of the uniform section is 22.86mm, and the length of the gradual change section is 23.64mm. In order to uniformly distribute the fluid in the various parts of the collector during the heat dissipation process, the position of the water inlet and outlet 5 of the collector needs to be reasonably installed.

Specifically, the centerlines of the sleeve 2, the inner conductor 1, the first flange 7, the second flange 8 and the chassis 9 coincide.

In this embodiment, as shown in fig. 2, the second flange 8 is connected to the bottom plate 9, when the U-shaped water channel 3 is circumferentially arranged along the peripheral wall of the flange pipe 40, the bottom plate 9 is connected to the outer side of the second flange 8, the inner cavity of the second flange 8 is attached to the outer wall of the sleeve 2, an annular groove adapted to the bottom of the sleeve 2 is formed in the bottom plate 9, and the bottom of the sleeve 2 is clamped in the annular groove.

Under the above structural parameters, the collector inlet electron beam energy is 286.65W, the inlet speed is 2m/s, the collector temperature distribution is shown in fig. 4, the collector maximum temperature distribution is shown in fig. 5, the maximum temperature is 58.2 ℃, the fluid temperature is shown in fig. 5, the maximum temperature is about 47 ℃, the difference between the two maximum temperatures is about 11.2 ℃, the heat of the collector can be effectively dissipated, and the collector can normally work in a safe range.

Example 2:

as shown in fig. 6 to 7, the axial U-shaped radiator drain collector structure: the axial U-shaped water channel structure can be used for the heat dissipation structure of the collector as well, which is different from the U-shaped water channel structure designed in the circumferential direction, and the axial U-shaped water channel structure is described in the embodiment.

Specifically, the U-shaped water channels 3 are cavities formed in the peripheral wall of the flange pipe 40, the U-shaped water channels 3 are longitudinally distributed along the peripheral wall of the flange pipe 40, the longitudinally distributed U-shaped water channels 3 are in an n-shaped structure, a plurality of longitudinally distributed U-shaped water channels 3 are uniformly distributed on the peripheral wall of the flange pipe 40, and the plurality of longitudinally distributed U-shaped water channels 3 are communicated through grooves formed in the bottom of the flange pipe 40. The water outlet 5 and the water inlet 6 are both arranged on a second flange plate 8 at the bottom of the flange structure, and a water inlet channel 11 communicated with the water inlet 6 and a water outlet channel 10 communicated with the water outlet 5 are also arranged on the second flange plate 8; the other end of the water inlet channel 11 is communicated with the beginning end 12 of the U-shaped channel 3, and the other end of the water outlet channel 10 is communicated with the ending end 13 of the U-shaped channel 3.

The water inlet 6 and the water outlet 5 of the axial U-shaped water channel structure are arranged at the bottom of the collector, are particularly arranged on the second flange plate 8, and cooling water flows into the water inlet channel 11 from the water inlet 6 and enters the U-shaped water channel 3 through the starting ends 12 of the U-shaped water channels, and the starting ends and the finishing ends of the plurality of U-shaped water channels 3 are communicated through annular grooves. The cooling water flows into each parallel U-shaped water channel 3 through the annular grooves, cools the collector through the U-shaped water channels, flows out from the end 13 of the last U-shaped water channel, flows out from the water outlet channel 10, and finally flows out from the water outlet 5.

As shown in fig. 6, when the U-shaped water channel 3 is longitudinally arranged along the peripheral wall of the flange pipe 40, the bottom plate 9 is connected to the inner side of the second flange 8, and the outer periphery of the bottom plate 9 is attached to the inner cavity pipe wall of the flange pipe 40.

In summary, the high-efficiency heat dissipation U-shaped water channel strong-current electron beam collector provided by the utility model has the characteristics of easiness in processing, capability of reducing secondary electron emission, good heat dissipation effect and the like, and the design of the water inlet and outlet distributed on the front and rear opposite sides can enable fluid to be distributed in all areas of the flow channel, so that the high-efficiency heat dissipation U-shaped water channel strong-current electron beam collector has a wide application prospect in strong-current electron beam collection.

Claims (10)

1. An electron beam collector with U type water course, includes sleeve (2), collector base and flange structure, its characterized in that: the collector base is of a T-shaped structure and comprises a bulge (30) and a chassis (9) connected with the bulge (30), the sleeve (2) comprises an outer cylinder (20) and an inner conductor (1) connected in an inner cavity of the outer cylinder (20), the inner conductor (1) is of a tubular structure with a closed top end, and the outer diameter of the upper end of the inner conductor (1) is smaller than the outer diameter of the lower end of the inner conductor; the shape of the tube cavity of the inner conductor (1) is matched with the shape of the bulge (30), and the inner conductor (1) is sleeved on the bulge (30); the flange structure is sleeved on the periphery of the sleeve (2), and comprises a first flange plate (7) and a second flange plate (8) and a flange pipe (40) for connecting the first flange plate (7) and the second flange plate (8);

a U-shaped water channel (3) is arranged on the peripheral wall of the flange pipe (40), one end of the U-shaped water channel (3) is connected with a water inlet (6), the other end of the U-shaped water channel is connected with a water outlet (5), and cooling liquid enters the U-shaped water channel (3) through the water inlet (6) and flows out of the water outlet (5).

2. An electron beam collector having a U-shaped channel as claimed in claim 1 wherein: the U-shaped water channel (3) is an annular hole cavity formed in the peripheral wall of the flange pipe (40), the U-shaped water channel (3) is circumferentially distributed along the peripheral wall of the flange pipe (40) and is distributed from top to bottom in a layered mode, the U-shaped water channels (3) of all layers are communicated through the longitudinal water channels (4), the longitudinal water channels (4) are longitudinal hole cavities formed in the peripheral wall of the flange pipe (40), the longitudinal water channels (4) are in a straight line shape, and the U-shaped water channels (3) are in a circular ring shape.

3. An electron beam collector having a U-shaped channel as claimed in claim 2, wherein: the water outlet (5) and the water inlet (6) are respectively arranged at the left side and the right side of the peripheral wall of the flange pipe (40), and the water outlet (5) is higher than the water inlet (6) and is arranged in a diagonal line.

4. An electron beam collector having a U-shaped channel as claimed in claim 1 wherein: the U-shaped water channels (3) are cavities formed in the peripheral wall of the flange pipe (40), the U-shaped water channels (3) are longitudinally distributed along the peripheral wall of the flange pipe (40), the longitudinally distributed U-shaped water channels (3) are n-shaped, a plurality of longitudinally distributed U-shaped water channels (3) are uniformly distributed on the peripheral wall of the flange pipe (40), and a plurality of longitudinally distributed U-shaped water channels (3) are communicated through grooves formed in the bottom of the flange pipe (40).

5. An electron beam collector having a U-shaped channel as defined in claim 4 wherein: the water outlet (5) and the water inlet (6) are both arranged on a second flange (8) at the bottom of the flange structure, and a water inlet channel (11) communicated with the water inlet (6) and a water outlet channel (10) communicated with the water outlet (5) are also arranged on the second flange (8); the other end of the water inlet channel (11) is communicated with the beginning end (12) of the U-shaped channel (3), and the other end of the water outlet channel (10) is communicated with the ending end (13) of the U-shaped channel (3).

6. An electron beam collector having a U-shaped channel as claimed in claim 1 wherein: the second flange plate (8) is connected with the chassis (9), when the U-shaped water channel (3) is circumferentially distributed along the peripheral wall of the flange pipe (40), the chassis (9) is connected to the outer side of the second flange plate (8), the inner cavity of the second flange plate (8) is attached to the outer wall of the sleeve (2), an annular groove matched with the bottom of the sleeve (2) is formed in the chassis (9), and the bottom of the sleeve (2) is clamped in the annular groove;

when the U-shaped water channel (3) is longitudinally distributed along the peripheral wall of the flange pipe (40), the chassis (9) is connected to the inner side of the second flange plate (8), and the periphery of the chassis (9) is attached to the inner cavity pipe wall of the flange pipe (40).

7. An electron beam collector having a U-shaped channel as claimed in claim 1 wherein: the outer cylinder (20) of the sleeve (2) comprises a first structure, a second structure and a third structure which are sequentially connected, wherein the first structure is a hollow round table-shaped structure, the second structure is a cylindrical structure, the big head end of the round table shape is connected with the cylindrical second structure, the third structure is a conical hole formed in the bottom of the second structure, and the aperture of the upper end of the conical hole is larger than that of the lower end of the conical hole; the inner conductor (1) is connected to the lower end of the tapered hole.

8. An electron beam collector having a U-shaped channel as defined in claim 7 wherein: the inner conductor (1) comprises an upper part and a lower part, the lower part of the inner conductor (1) is a cylindrical pipe with an open lower end, the upper part of the inner conductor (1) is a conical pipe structure with a closed top end, the outer diameter of the lower end of the conical pipe is larger than that of the upper end, and the lower end of the conical pipe is connected with the upper end of the cylindrical pipe; the lower end of the cylindrical pipe is connected with the lower end of the conical hole.

9. An electron beam collector having a U-shaped channel as claimed in claim 1 wherein: the pipe wall of flange pipe (40) is bilayer structure, including the inner tube that is connected into an organic whole with first ring flange (7) and second ring flange (8) to and the outer tube of cover setting up the inner tube outer wall, U type water course (3) are the slot of seting up the inner tube outer wall, and when the outer tube laminating cover was established on the inner tube outer wall, the slot notch of outer tube inner wall and U type water course (3) formed seal structure, thereby form U type water course (3) that can supply cooling liquid to flow.

10. An electron beam collector having a U-shaped channel as claimed in claim 1 wherein: the pipe wall of the flange pipe (40) is of a double-layer structure and comprises an inner pipe connected with the first flange plate (7) and the second flange plate (8) into a whole and an outer pipe sleeved on the outer side of the inner pipe, an interlayer is arranged between the inner pipe and the outer pipe, and the U-shaped water channel (3) is a pipeline penetrating through the interlayer.