47 results about "Wave tube" patented technology

The utility model relates to the technical field of automobile radiators, and discloses an automobile radiator pipe root reinforcing structure which comprises a first mounting plate and a second mounting plate, a radiating pipe is fixedly connected between the first mounting plate and the second mounting plate, the middle of the radiating pipe is fixedly connected with a corrugated pipe, and the corrugated pipe is fixedly connected with the corrugated pipe. The outer side of the heat dissipation pipe is fixedly connected with a stretching block and a fixing block, the outer side of the heat dissipation pipe is provided with a strengthening assembly, the strengthening assembly comprises a first connecting block, the first connecting block is arranged on the outer side of the heat dissipation pipe in a sleeving mode, the outer side of the heat dissipation pipe is fixedly connected with a second connecting block, and the outer side of the stretching block is provided with a curved surface and an inclined surface. A plurality of heat dissipation pipes are specifically arranged. According to the structure, under the cooperation of the corrugated pipe, the heat dissipation pipe, the first mounting plate, the second mounting plate, the stretching block and other structures, a multi-direction and multi-angle fastening mode is formed, the reinforced fastening effect of the structure is achieved, and the practicability of the structure is effectively improved.

The embodiment of the present application discloses a kind of travelling wave tube slow wave structure welding mould, including the welding upper die and welding lower die of opposite arrangement;Positioning cylinder between the welding upper die and welding lower die;And the centering rod that passes through the welding upper die and welding lower die;The welding upper die and welding lower die are connected by screw rod and form welding support, two ends of the positioning cylinder are respectively with the welding upper die and welding lower die abut, the centering rod is located in the inner cavity of the positioning cylinder;To be welded slow wave structure is contained in the inner cavity of positioning cylinder, the centering rod includes first centering rod and second centering rod, the first centering rod is arranged in the electron beam passage of to be welded slow wave structure, and the second centering rod is arranged in the pin hole of to be welded slow wave structure.The improvement of slow wave structure degree, perpendicularity is realized, and the pipe body horizontal direction torsion is reduced, and the flow rate of further high-power travelling wave tube and yield rate are improved.

The invention relates to the technical field of vacuum electronics, and discloses a large-radius spiral waveguide slow wave device (including a traveling wave tube and a backward wave tube). The high-frequency structure of the novel slow-wave device is a two-dimensional periodic slow-wave structure formed by spirally winding a rectangular waveguide along a large-radius cylindrical surface. The transverse size of an electron beam channel can be greatly increased by increasing the spiral radius, so that higher injection electron beam power (under the same current density) is provided, and the output power is greatly improved. Compared with an existing slow-wave device, the large-radius spiral waveguide slow-wave device has the advantages that the output power can be greatly improved (in magnitude), and the bottleneck that the power of an existing vacuum electronic slow-wave device is limited can be broken through.

The invention discloses an improved tempered glass air cooling channel and a cooling method thereof, and relates to the technical field of glass deep processing equipment.The improved tempered glass air cooling channel comprises a channel, a plurality of rotating shafts driven by an external motor are rotationally installed on the lower portion of the interior of the channel, and a plurality of evenly-distributed conveying wheels are installed on the outer side of each rotating shaft in a sleeving mode; the conveying wheels located on the outer sides of every two adjacent rotating shafts are sequentially distributed in a staggered mode, a plurality of evenly-distributed corrugated pipes are further installed on the lower portion of the interior of the channel in a penetrating mode, a plurality of auxiliary air nozzles are connected to the ends of the corrugated pipes in a penetrating mode, and a plurality of main air nozzles are connected to the middles of the corrugated pipes in a penetrating mode. The auxiliary air taps and the conveying wheels are distributed in a penetrating mode in the transverse direction, and a plurality of upper air tap rows are connected to the upper portion of the interior of the channel in a penetrating mode. The improved tempered glass air cooling channel and the cooling method thereof disclosed by the invention have the effects of improving the finished product quality and the working efficiency.

Provided in the present application are a traveling-wave tube, a transmitter, an electronic device and a signal processing method. The traveling-wave tube comprises an input apparatus, an electron emission apparatus, a plurality of slow-wave structures and an output apparatus, wherein at least one transmission channel is formed in the plurality of slow-wave structures, and the number of transmission channels is less than the number of slow-wave structures; the input apparatus is used for receiving a plurality of radio-frequency signals and feeding the plurality of radio-frequency signals into the plurality of slow-wave structures; the electron emission apparatus is used for emitting an electron beam into the at least one transmission channel of the plurality of slow-wave structures; the plurality of slow-wave structures are used for respectively receiving the plurality of radio-frequency signals, and using the electron beam to respectively amplify the plurality of radio-frequency signals, so as to obtain a plurality of amplified radio-frequency signals; and the output apparatus is used for outputting the plurality of amplified radio-frequency signals. The present application can reduce the volume of a traveling-wave tube, thereby decreasing the cost of the traveling-wave tube.

The invention discloses a wiring terminal production laser cutting device and process, and relates to the field of laser cutting devices.The wiring terminal production laser cutting device comprises a machine body, bases are symmetrically installed at the top of the machine body, and the tops of the bases are connected with a positioning plate through air cylinders; a dust collection wave tube is rotationally arranged at the top of the positioning plate, a swing range adjusting assembly for the dust collection wave tube is arranged in the positioning plate, the two sides of the dust collection wave tube are connected with the inner side faces of the long ends of side plates, and the side plates and the dust collection wave tube form a fan-shaped dust collection structure; a base plate is arranged on the outer end face of the positioning plate, a clamping spring is arranged between the outer end face of the positioning plate and the base plate, and a pre-tightening force adjusting assembly of the clamping spring is arranged in the positioning plate. According to the laser cutting device and process for wiring terminal production, through linkage operation of clamping positioning, synchronous dust collection range adjustment, reciprocating swing dust collection and pre-tightening force adjustment, wiring terminal clamping, cutting dust efficient cleaning and clamping force self-adaption are achieved, and the laser cutting quality is improved.

The utility model relates to the technical field of heat exchangers, in particular to a corrugated tube sleeve type fixed tube sheet heat exchanger, which comprises a heat exchanger main body, corrugated tubes are uniformly distributed in the heat exchanger main body, tube joints are uniformly and integrally arranged outside the corrugated tubes at intervals, sleeves are sleeved outside the corrugated tubes, and the length of the sleeves is larger than that of the corrugated tubes. A first flow guide plate and a second flow guide plate are further arranged on the two sides between the corrugated pipe and the sleeve respectively, a second fixing pipe plate and a first fixing pipe plate are arranged at the two ends of the corrugated pipe and the two ends of the sleeve respectively, and a barrel is arranged on the heat exchanger body. According to the corrugated tube sleeve type fixed tube sheet heat exchanger, the sleeve is arranged outside the corrugated tube, so that three fluids which are not communicated with one another can respectively circulate in the corrugated tube, between the corrugated tube and the sleeve and outside the sleeve, and the flow guide plates are designed between the corrugated tube and the sleeve, so that the impact of the fluids can be increased, and the heat exchange effect of the heat exchanger is improved; and the stability of the connection between the corrugated pipe and the sleeve is ensured.

This disclosure relates to a refrigerant compressor including a diffuser with one or more quarter wave tubes. The compressor is used in a heating, ventilation, and air conditioning (HVAC) chiller system, for example.

The invention discloses an all-metal slow-wave structure with a periodically slotted flat plate structure loaded with a rectangular waveguide, which is characterized in that a double-F-shaped slot structure is periodically etched on a metal flat plate, and the periodically slotted flat plate is embedded into the rectangular waveguide to form an all-metal slow-wave structure, so that a double-strip electron beam channel is formed. The structure greatly enhances the longitudinal field intensity at an electron beam channel, has higher coupling impedance than that of a conventional slow wave structure at the frequency band, keeps lower synchronous voltage, and can simultaneously realize synchronization of forward wave / backward wave regions. In addition, the structure also has the advantages of all-metal structure, open internal space, heat dissipation convenience, simple structure and easiness in processing. Therefore, the structure provided by the invention is particularly suitable for designing W-band traveling wave tube amplifiers or backward wave oscillators with relatively high interaction electron efficiency and output power.

The invention discloses a sampling device for waste treatment atmosphere non-point source emission quantification, and belongs to the technical field of gas sampling equipment.The sampling device comprises a sampling ship body, the sampling ship body comprises a cuboid frame with three faces enclosed, hollow quadrangular frames are installed at the two ends of the cuboid frame, and ventilation openings are formed in one ends of the two hollow quadrangular frames; the two hollow quadrangular frames are respectively used as a gas outlet and a gas inlet, the gas inlet is communicated with a gas pump, the gas pump is communicated with a gas inlet corrugated pipe, the sampling ship body is detachably connected with a floating body, the two hollow quadrangular frames are respectively communicated with a Teflon gas pipe, the other ends of the Teflon gas pipes are respectively communicated with different interfaces of a gas path exchange valve, and the gas path exchange valve is communicated with a gas analyzer. Continuous automatic online monitoring of solid and liquid atmospheric surface sources can be realized by loading and unloading the floating body, the defects of limited environment, low time resolution, low automation degree and the like when a traditional gas sampling device is used on the water surface are overcome, and the sampling efficiency, precision and reliability are greatly improved.

A slow-wave structure, a traveling-wave tube, and a communication apparatus are provided. The slow-wave structure includes a tube housing, a slow-wave line, and a plurality of support portions. The slow-wave line and the plurality of support portions are all located inside the tube housing, and the tube housing, the slow-wave line, and the plurality of support portions are integrally connected. The plurality of support portions are sequentially spaced apart along the slow-wave line. One end of each support portion is connected to the tube housing, and the other end is connected to the slow-wave line.

The application belongs to the field of vacuum electron devices, and particularly relates to a kind of attenuation solving method of G-band edge alignment staggered grid row wave tube high-frequency structure.The attenuation quantity definition of passive device is introduced into the high-frequency structure of active device-G-band edge alignment staggered grid row wave tube for the first time, and the solving method of the change rate of time-averaged radio frequency power P along the axial direction used in the solving of attenuation constant of existing high-frequency structure is deviated, the solving formula of attenuation constant of G-band edge alignment staggered grid row wave tube high-frequency structure is obtained by starting from the basic theory of attenuation and transmission, deduction and numerical verification, the attenuation constant solved can support 3-dimensional large signal nonlinear beam-wave interaction solver BWISFW calculation, and compared with CST-PIC, the calculation results are consistent.The attenuation constant calculation method provided by the application is especially suitable for G-band edge alignment staggered grid row wave tube high-frequency structure, and is helpful to shorten the development cycle and reduce the production cost.

An electromagnetic power source (100, Fig. 1), e.g. a cylindrical or co-axial cavity gyrotron, surface wave source, klystron or travelling wave tube, configured to generate microwave or terahertz power modes for heating plasma in a nuclear fusion reactor (300, Fig. 6) is described. The power source comprises an excitation cavity 108 configured to generate an electromagnetic power mode 112, wherein the excitation cavity comprises a first, inner layer 122 thermally coupled to a second, outer layer 124, wherein the first layer comprises electrically conducting metal, e.g. copper, silver or gold, and the second layer comprises diamond. The diamond of the second layer may be a metal composite diamond or may be formed by chemical vapour deposition (CVD). The second layer may, for example, comprise: a unitary structure; a plurality of coaxially stacked, hollow cylindrical or toroidal segments (130, Fig 8a); or a plurality of rectangular bars joined using a brazing or bonding material (123, Fig. 4).

The invention belongs to the technical field of high-power microwaves, and particularly relates to an ultra-high-power ultra-large-radius coaxial backward wave tube which is particularly suitable for national defense and military application. According to the ultra-large-radius coaxial corrugated backward wave tube, on the basis that the difference between the inner radius and the outer radius of a fundamental wave (TEM wave) is not changed, by increasing the center radius of a slow wave device and keeping the electron beam voltage and current density unchanged, the input current is increased in an equal proportion mode, and the output power is increased in a year-on-year mode. The problem that the power of an existing slow-wave device is limited can be solved.

The utility model relates to the technical field of sealing valves, in particular to a reinforced corrugated pipe sealing valve which comprises a valve body, a valve clack is arranged in the valve body, a corrugated pipe is arranged on the valve clack, a valve rod is arranged on the surface of the valve clack, the corrugated pipe is sleeved on the valve rod, and a reinforcing spring is arranged between the corrugated pipe and the valve rod. A plurality of fastening screws are arranged on the surface of the upper sealing plate, and the upper end of the corrugated pipe is clamped between the upper sealing plate and the valve body; the corrugated pipe valve has the beneficial effects that when the corrugated pipe valve is used, the upper sealing plate can be detached from the surface of the valve body by rotating the fastening screw rod on the surface of the upper sealing plate, so that the interior is convenient to repair and maintain, and the reinforcing spring positioned between the corrugated pipe and the valve rod can play a role in supporting and buffering, so that the abrasion of the corrugated pipe is reduced, the overall sealing performance is improved, and the service life of the corrugated pipe is prolonged. The service life of the corrugated pipe sealing valve is prolonged, the reliability of equipment operation is improved, and the leakage problem caused by long-term compression deformation of the corrugated pipe is avoided.

The application discloses an ultrahigh-power Cherenkov radiation generator, and solves the problems of low output power, low conversion efficiency and narrow frequency modulation range of a current frequency modulation waveform generated by a relativistic backward wave tube, and specifically comprises a ring cathode, a coaxial reflector, a non-uniform slow wave structure, a uniform slow wave structure, a coaxial coupling structure and a magnetic field coil which are coaxially connected in sequence at the back side of the ring cathode; the non-uniform slow wave structure and the uniform slow wave structure are both overmoded structures, compared with a single-mode structure, the device power capacity is improved, and meanwhile, the device can work at a higher working voltage, which is beneficial to generating ultrahigh power.

This invention discloses a filter media wave tube laying and installation device for saline-alkali land treatment, comprising: a laying and installation device operating platform, a filter media wave tube loading box, and an electric telescopic rod body. A fixing limiting tooth is fixedly installed on the upper end of the laying and installation device operating platform, a filter media wave tube support inclined frame is fixedly installed on the upper end of the operating platform, and the filter media wave tube body is disposed on the upper end of the support inclined frame. The filter media wave tube loading box is fixedly installed on the upper end of the operating platform, and a limiting plate is fixedly installed on the inner end of the loading box. A clamping mechanism mounting plate is fixedly installed on the lower end of the electric telescopic rod body, and a miniature electric telescopic rod is fixedly installed on the inner end of the clamping mechanism mounting plate. This filter media wave tube laying and installation device for saline-alkali land treatment facilitates automatic clamping and unloading, is easy to operate, automatically transfers materials, assists in laying, has high work efficiency, and saves time and labor.

The utility model belongs to the technical field of water quality detection, and particularly relates to a compact folding mechanism for saving space, which comprises a vacuum pump, the output end of the vacuum pump is communicated with a multi-angle corrugated tube, and one end of the multi-angle corrugated tube is communicated with a first detection mechanism. The first detection mechanism comprises an outer corrugated pipe communicated with one end of the multi-angle corrugated pipe, an inner corrugated pipe is movably sleeved with the outer corrugated pipe, the interior of the outer corrugated pipe is communicated with the exterior of the inner corrugated pipe, a collection mechanism is arranged at the bottom of the inner corrugated pipe, and a second detection mechanism is arranged at the bottom of the inner corrugated pipe. Water can enter a water source inlet at any angle through the arranged multi-angle corrugated pipe, water can be taken from water sources at different depths at the same time through the arranged first detection mechanism, second detection mechanism and collection mechanism, and the equipment is easy to use and recycle, can be disassembled and stored, and is convenient to use. And the first detection mechanism and the second detection mechanism are compressed, so that the space is saved.

The utility model discloses a cutting device with a waste recovery structure, which belongs to the field of cutting devices and is characterized in that a sliding chute of a first support is connected with a limiting seat, the limiting seat is connected with an adjusting seat, one end of the limiting seat is connected with an adjusting screw rod, the adjusting screw rod is connected with the adjusting seat, and a clamping groove for a corrugated pipe to be cut is formed between the adjusting seat and the limiting seat; the sliding groove of the second support is connected with an electric push rod and a sliding device, the upper end of the sliding device is connected with a sliding seat, and the side wall of the sliding seat is connected with a cutting blade. The cutting adjusting mechanism accurately controls the position of the corrugated pipe through cooperation of a limiting seat, an adjusting seat and an adjusting screw rod, and accurate and efficient cutting is ensured. Due to the control, the cutting quality is improved, waste materials are reduced, and the material utilization rate is increased; the waste collecting mechanism effectively collects cutting waste through the design of a collecting cover and a horn cover. The collecting cover is aligned with a cutting point to ensure timely and complete collection of waste materials, keep the environment clean, reduce scattering and flying, and reduce interference and harm to operators.

The application discloses a travelling wave tube power amplifier helix welding clamp, which comprises a support, an inner support cylinder horizontally arranged along the front-back direction is arranged on the upper portion of the support, three main clamping blocks and three auxiliary clamping blocks are radially and equiangularly connected to the inner circumferences of the inner support cylinder, the main clamping blocks and the auxiliary clamping blocks are equiangularly and staggeredly arranged, the main clamping blocks on the upper portion of the inner support cylinder are vertically upward, and the auxiliary clamping blocks on the bottom of the inner support cylinder are vertically downward. When the application is used, the clamping rods and the helix along the front-back horizontal direction are sequentially put into the second channel and the third channel, then the two main clamping blocks on the bottom of the inner support cylinder are made close to each other by the distance adjusting mechanism to clamp the helix, then the clamping rods along the front-back horizontal direction are sequentially put into the first channel and the fourth channel, then the two clamping rods are respectively in contact with the left and right sides of the helix, and then the main clamping blocks and the auxiliary clamping blocks on the upper portion of the inner support cylinder are made close to each other by controlling the distance adjusting mechanism.

A slow-wave structure, a traveling-wave tube, and a communication apparatus are provided. The slow-wave structure includes a tube housing, a slow-wave line, and a plurality of support portions. The slow-wave line and the plurality of support portions are all located inside the tube housing, and the tube housing, the slow-wave line, and the plurality of support portions are integrally connected. The plurality of support portions are sequentially spaced apart along the slow-wave line. One end of each support portion is connected to the tube housing, and the other end is connected to the slow-wave line. This application can address processing and assembly errors caused by a discrete design, and simplifies assembly, thereby shortening an overall production cycle of the traveling-wave tube, and improving yields and consistency of the traveling-wave tube.

The utility model relates to the technical field of wave tube cleaning, in particular to an ultraviolet water treater glass tube cleaning mechanism which comprises a shell and a cleaning module, the cleaning module comprises a cleaning plate, a cleaning lantern ring, a jet flow plate, a pressing ring and a driving assembly, the cleaning plate is arranged in the shell, an opening is formed in the surface of the cleaning plate, and the jet flow plate is arranged in the opening. A plurality of wing plates are evenly arranged on the surface of the jet flow plate, the pressing ring is in bolted connection with the cleaning plate and located on one side of the opening, the cleaning lantern ring is connected with the jet flow plate in a clamped mode and located on one side of the jet flow plate, and the driving assemblies are arranged at the two ends of the cleaning plate. The use performance of the glass tube is influenced.

The invention relates to the technical field of engines, and discloses a detonation engine which is characterized in that a duct cylinder, a gas collection cylinder and a spray pipe are sequentially connected, the gas collection cylinder is provided with a reducing section, and a sweepback blade fan driven by a second motor is arranged in the duct cylinder; an air injection cylinder is fixed in the spray pipe in a sealed mode, a penetrating wave channel is formed in the circumferential direction of the air injection cylinder, a wave tube is rotationally sleeved with the wave channel, and an arch-shaped scraper blade is fixed to the air injection cylinder and tangent to the inner wall of the wave tube. A guide cone is slidably arranged in the air injection barrel and connected with the air injection barrel through a spiral groove shifting fork mechanism, and the guide cone slides to drive the wave tube to rotate to achieve scraping and dust removal of the scraper. The end face of the air injection cylinder, the guide cone and the inner wall of the spray pipe define a combustion chamber, and the spray pipe is provided with a pressure detection assembly. The pressure of the combustion chamber can be accurately regulated and controlled, accumulated dust of the wave tube is actively removed, meanwhile, the combustion efficiency is improved, the heat-resistant service life is prolonged, pressure instability and dust accumulation pain points are solved, and the reliability of an engine is improved.

The utility model discloses an air tightness detection device for metal wave tube production, which relates to the technical field of air tightness detection devices and comprises an L-shaped base, a detection water sump is fixedly connected to the top of the L-shaped base, a separation filter screen is fixedly connected to the bottom in a cavity of the detection water sump, and a water pump is fixedly connected to the interior of the bottom cavity of the detection water sump. The side wall of the detection water sump is fixedly connected with a U-shaped pipe, and one end of the water pump penetrates through the side wall of the detection water sump. According to the L-shaped base provided by the utility model, the metal wave tube is dried after detection on the basis of marking a leaked tube section during automatic detection of the metal wave tube, so that the problem that the existing air tightness detection device for metal wave tube production cannot automatically clean residual water after detection is solved; and a leaked pipe section cannot be automatically marked during detection, so that the pipe section is inconvenient to return to a factory for maintenance.

The invention provides a step-down collector applied to a relativistic backward wave tube, which is characterized in that the center axis of the step-down collector is the same as that of the relativistic backward wave tube, the inner diameter of the input end of the collector is the same as that of the backward wave tube body, and the inner diameter of the output end of the collector is the same as that of the output part of the backward wave tube; the radius at the inlet of the collector electrode is gradually changed, and the collector electrode is insulated from the backward wave tube body and the backward wave tube output part through an insulating ceramic piece. After the step-down collector is adopted, electric energy is recycled, the total efficiency of the device is improved, the heating loss is reduced, and the heat dissipation pressure is reduced; the relativistic backward wave tube system reduces the hardness and dosage of generated X-rays, the lead plate is included, the X-rays are reduced and relieved from the source, the lead sheet blocks the X-rays, and therefore the X-rays diverging to the outside of the relativistic backward wave tube system are greatly reduced, and testing environment safety is better facilitated.

The tube plate structure in the corrugated tube heat exchanger comprises a circular tube plate, a plurality of heat exchange connecting holes are formed in the tube plate, positioning holes are formed in the center, the front side and the rear side of the tube plate respectively, a screw is inserted into the positioning holes, and a clamping groove penetrating through the outer walls of the front side and the rear side of the screw is formed in the end face of the right end of the screw. A circular sealing plate is arranged on the left side of the tube plate, a horizontal partition plate is formed in the middle of the right end face of the sealing plate and inserted into a clamping groove of the screw, the left side edge of the partition plate abuts against the bottom face of the clamping groove, the right side edge of the partition plate abuts against the left end face of the tube plate, and the partition plate divides heat exchange connecting holes in the tube plate into an upper set of heat exchange inlet and outlet holes and a lower set of heat exchange inlet and outlet holes with the same number. The right end of the screw extends out of the tube plate and is in threaded connection with a nut, the nut abuts against the right end face of the tube plate in a pressing mode, and the left end of the screw is inserted into the sealing plate. The tube plate and the partition plate are connected through the bolts, installation and connection are convenient, and meanwhile the partition plate is provided with the sealing plate, so that sealing connection with an inner tube box of the heat exchanger is conveniently achieved.

A high-precision dispensing machine specifically designed for sealing optical waveguides includes a horizontally arranged dispensing platform, a horizontally arranged support plate mounted on the platform, and a drive device for driving the support plate to move horizontally on the platform. Several insertion slots for placing optical waveguides are provided on the top of the support plate. A dispensing can is mounted above the support plate via a bracket. A vertically arranged dispensing nozzle is mounted on the side of the dispensing can, and a power device for driving the nozzle to move vertically to insert it into the end of the optical waveguide for dispensing. The dispensing nozzle is connected to the bottom of the dispensing can via a dispensing tube, on which a dispensing control valve and a peristaltic pump are mounted. This invention reduces reliance on manual experience, achieving precise dispensing of optical waveguides and significantly improving the sealing quality.

The utility model discloses a dynamic adjustable ammonia spraying structure, which is applied to the field of ammonia spraying structures and comprises a plurality of branch pipes, a wave tube I is communicated between every two adjacent branch pipes, and when the dynamic adjustable ammonia spraying structure is used, the dynamic adjustable ammonia spraying structure is preferentially mounted at a required position by matching a mounting disc with a cross rod. And then in the ammonia spraying process, the main pipe is connected with external ammonia supply equipment. When the distance between the positions of the branch pipe and the spray head needs to be adjusted, rotation of the first screw rod can be achieved through rotation of the first knob, and then the position of the moving ring on the surface of the transverse rod can be moved. After the branch pipe and the spray head are moved to the needed position, the first rotary knob is tightened again, moving progression of the first screw rod in the threaded hole is achieved, after the first screw rod makes contact with the surface of the transverse rod, limiting and fixing of the branch pipe can be achieved, through the arrangement, the ammonia spraying structure can be flexibly adjusted conveniently, and use flexibility and dispatchability are improved.

The utility model relates to a hypotube which comprises a hypotube body, the hypotube body is of a hollow tubular structure and has a preset length, torsion grooves are formed in the side wall of the hypotube body in a sunken mode, the torsion grooves are formed in the circumferential direction of the hypotube body and are of a closed-loop annular structure, the number of the torsion grooves is multiple, and the torsion grooves are formed in the axial direction of the hypotube body; the positions of the closed rings of any adjacent torsion grooves do not correspond, the positions of the closed rings of any spaced torsion grooves correspond, the torsion grooves are spiral in the axial direction of the wave tube, the softness and flexibility of the cylindrical tube body are regulated and controlled by adjusting the cutting texture of the torsion grooves, and therefore the bending fracture resistance of the wave tube is improved. Specifically, due to the arrangement of the torsion groove, the application value of the hypotube body in the medical interventional operation is greatly improved, and it is ensured that the best controllability, flexibility and stability can be kept when the guide wire penetrates through zigzag and changeable blood vessels or narrow and small spaces.

The invention discloses an axial energy extraction structure of a broadband super-radiation backward wave tube, and belongs to the field of high-power microwave sources. The energy extraction structure comprises a coaxial TM0n-TEM mixed mode converter, a mixed mode phase shifter and a supporting rod loading coaxial waveguide which are connected in sequence. When a TM01 wave enters the coaxial TM0n-TEM mixed mode converter, part of a TM01 mode is converted into a TEM mode, and the TM01 mode and the TEM mode are equal in amplitude and phase. In the hybrid mode phase shifter, waves of two modes can generate a phase difference, and equal-amplitude phase reversal of a TM01 mode and a TEM mode is achieved. When the supporting rod loads the coaxial waveguide, the TM01 mode and the TEM mode interfere with each other and are transmitted in the TE11 mode, and after passing through the area where the supporting rod is located, the electromagnetic waves are converted into the TM01 and TEM mixed mode again to be output. The axial energy extraction structure has the advantages of being simple in supporting structure, large in power capacity and high in energy extraction efficiency.