42 results about "Head cooling" patented technology

The utility model belongs to the technical field of UPS power supplies, and particularly relates to a UPS power supply convenient for heat dissipation, which comprises a UPS power supply body and a wiring panel, the wiring panel is arranged on the surface of the head part of the UPS power supply body, a head part air inlet channel is arranged at the joint of the head part of the UPS power supply body and the wiring panel, a tail part air inlet channel is arranged at the tail part of the UPS power supply body, and the head part air inlet channel is communicated with the wiring panel. A head cooling fan is installed at the position, corresponding to the head air inlet channel, of one end of the upper surface of the UPS body, and a tail cooling fan is installed at the position, corresponding to the tail air inlet channel, of the other end of the upper surface of the UPS body. The inner cavity of the UPS body is divided into a plurality of groups of battery pack mounting cavities through the flame-retardant partition plates, battery packs can be separated, the distance between the battery packs is increased, heat dissipation of the battery packs is facilitated, air is blown from bottom to top in the battery packs through the vent holes, the tail part can transversely blow air to the battery packs, and the heat dissipation efficiency of the battery packs is improved. The heat dissipation efficiency of the battery pack can be improved.

A personal cooling system for cooling a person includes a head cooling cap. The head cooling cap includes an inner layer defining a cavity configured to receive a head of the person, an outer layer, an intermediate layer positioned between the inner layer and the outer layer, and an inlet coupled to the outer layer. The inner layer is formed from fluid permeable materials. The intermediate layer defines a plurality of openings extending therethrough. The inner layer and the intermediate layer cooperatively define an inner potential space positioned between the inner layer and the intermediate layer. The intermediate layer and the outer layer cooperatively define an outer potential space positioned between the intermediate layer and the outer layer. The outer potential space is configured to receive a fluid and provide the fluid to inner potential space through the plurality of openings.

The invention relates to the technical field of welding, in particular to welding equipment for mold production and machining. A cylinder I is fixedly connected to the welding head; a funnel is fixedly connected to the shell and communicates with the first cylinder through a hose. A cavity I is formed between the cylinder I and the welding head; the shell is fixedly connected with a mixer; the input end of the mixer is communicated with the cavity I through a hose; a second cylinder is fixedly connected to the outer side of the welding head and fixedly connected with the shell, and the second cylinder is fixedly connected with the first cylinder. A first spiral piece is fixedly connected to the inner side of the second cylinder and fixedly connected with the welding head. The mixer is arranged beside the welding head, gypsum is directly smeared after welding, station transferring is not needed, and efficiency is improved; high-temperature clear water obtained after welding head cooling and preheated gypsum powder are prepared into high-temperature gypsum slurry in a mixer, the high-temperature gypsum slurry is smeared to the repair welding position, uniform cooling is achieved, and the cracking risk is reduced; the design solves the problems of welding head heat dissipation and gypsum preheating at the same time, and the practical value is high.

A head cooling apparatus for cooling a user's head includes a cap which defines a cavity configured for receiving the user's head. The cap comprises a base member which defines a rim of the cap and extends toward a top end of the cap. The cap also comprises a containment member which is coupled to the base member and a heat transfer substance which is housed in an interior space in the containment member. A covering is removably mountable over the cap.

A cap (100) with a head cooling device is provided with a head cooling device (1) and a cap (2), the head cooling device (1) is provided with a device main body (11) and a fan (12), and the device main body (11) is provided with: an air suction part (1122) which is an opening for sucking air into the fan (12); and an air delivery unit (113) for delivering the air sucked in from the air suction unit (1122) by the fan (12) into the cap (2). The device body (11) is provided with an upper surface part (111) constituting the upper surface and a lower surface part (112) constituting the lower surface, the air suction part (1122) is formed on the lower surface part (112), and the air delivery part (113) is formed between one end of the upper surface part (111) and one end of the lower surface part (112).

The utility model discloses a head cooling and extruding device of a sealant extruder, which comprises an extruding mechanism used for extruding a self-sealant, and a cooling mechanism connected with the extruding mechanism and used for cooling the self-sealant, according to the head cooling extrusion device of the sealant extruder, the cooling channel is arranged in the cooling cylinder, and circulating water cooling is realized through the cooling water inlet and the cooling water return port, so that a self-sealant can be rapidly cooled to a proper temperature in the extrusion process, and the problem of low cooling efficiency of a traditional natural cooling and air cooling mode is effectively solved; by optimizing the internal structure of the cooling cylinder, the cooling medium can be uniformly distributed in the cooling channel, the extruded self-sealing glue is uniformly heated in the whole cooling process, and the local supercooling or superheating phenomenon is avoided, so that the glue material performance change caused by nonuniform cooling is reduced, and the product quality is improved.

The utility model relates to the technical field of electronic jacquard machines, in particular to an electronic jacquard machine faucet cooling device which comprises a machine body, a driver and a faucet shell are arranged on the machine body, a cold air assembly is arranged on the faucet shell, and an exhaust pipe is fixedly connected to the cold air assembly. The exhaust pipe is provided with a cooling assembly used for enhancing the heat dissipation effect of the interior of the faucet shell and the heat dissipation effect of the driver. The cooling assembly comprises an upper pipeline and a lower pipeline which are arranged in the faucet shell. By means of the cooling assembly, when cold air is conveyed into the faucet shell and the exhaust plate is driven to move towards the left side, most of the cold air in the exhaust pipe is exhausted to the surface of the driver through the exhaust plate, the cold air can act on the driver more directly, the heat dissipation effect is better, the cooling rate is higher, and the service life of the faucet is prolonged. And in the process that the exhaust plate moves back and forth on the top of the driver, the faucet shell is in a sealed state, cold air stays in the faucet shell for a longer time, and the cold air can conduct heat exchange more effectively to achieve the cooling purpose.

The application discloses a ground charging system for a new energy shunting locomotive and relates to the technical field of new energy shunting locomotives.The technical points of the ground charging system include a charging pile body, charging cables symmetrically and fixedly installed on the side of the charging pile body, and a hollow wire supporting rod.The end of the charging cable away from the charging pile body is fixedly installed with a charging gun head.The outer side of the charging pile body is provided with a wire supporting structure.The hollow wire supporting rod wire supporting structure includes two hollow wire supporting rods rotatably connected to the two sides of the charging pile body.The wire supporting structure is arranged to realize the winding and unwinding of the charging cable, avoid the direct dragging of the cable on the ground, reduce the friction with the ballast, effectively prevent the abrasion of the outer sheath of the cable, form a two-way airflow by using the air pump, the air guide cavity, the ring cylinder and the gun head cooling channel and other airway structures, take away the heat of the cable and the gun head, blow off the surface dust, guarantee the charging efficiency, delay the aging of the insulation layer, and improve the safety and the service life of the equipment.

Provided is a liquid cooling system for a charging gun and a charging gun, relating to the technical field of charging guns. In the liquid cooling system for a charging gun, a head cooling assembly includes a head housing, a first head seal assembly, a second head seal assembly, and a third head seal assembly. The head housing is provided with a terminal port and a head inlet. The terminal passes through the terminal port and the connection end of the terminal is accommodated in the head housing. The head inlet is configured to enable a cable extend into the head housing to connect to the connection end of the terminal. The first head seal assembly is sealingly disposed at a joint between the connection end of the terminal and the cable. The second head seal assembly is sealingly disposed at the terminal port.

The present application relates to the technical field of laser numerical control system, and particularly relates to a heat error compensation method and system of a laser numerical control system; the multi-source temperature monitoring module of the design comprises three groups of sensors: the first group is arranged at temperature measuring points such as a cutting head cooling channel, the second group is arranged at a feed shaft screw rod and a nut end, and an environment group is arranged at a non-moving end of a machine tool bed, so that key heat source temperature data can be comprehensively acquired and compensation accuracy is improved; a dynamic compensation model construction module constructs a dynamic heat error compensation model with a multivariate coupling relationship based on historical data, and can adjust compensation coefficients according to real-time temperature and position changes; a data acquisition unit acquires multi-state data, a model training unit inputs a neural network for training, and a model updating unit optimizes the model periodically; a compensation amount real-time calculation module is combined with motion parameters; a compensation execution control module converts the compensation amount into a control instruction, dynamically adjusts a servo motor, and a feedback verification unit monitors an actual position; if a deviation exceeds a threshold value, secondary correction is performed.

The invention relates to the field of cooling devices, in particular to an emergency treatment in-vitro cooling device which comprises a bed plate, a limiting plate assembly, a trunk area cushion, a head area cushion, a cooling pipe, a cooling water tank, a water tank inlet and outlet pipe set, a head cooling assembly and a trunk cooling assembly. A limiting plate assembly used for limiting the fever patient from moving disorderly after lying down is installed on the rear side of the upper end of the bed plate. A fever patient is limited to move disorderly after lying down through the limiting assembly, the back, the head and the neck of the lying patient can be subjected to water cooling, heat of the body surface is effectively taken away, the body temperature is rapidly reduced, meanwhile, the chest area, the hand area and the leg area of the patient are all coated with alcohol through the alcohol smearing roller moving front and back, and therefore the patient feels comfortable. The cooling device is long in duration time, capable of reducing side effects or anaphylactic reactions possibly caused by drugs, high in automation degree and quite suitable for emergency treatment.

The invention belongs to the technical field of high-temperature superconducting, and discloses a high-temperature superconducting magnet cooling structure and a high-temperature superconducting device. The high-temperature superconducting magnet cooling structure comprises a Dewar, a magnet cold conduction assembly, a cold head cold conduction assembly and a cold shield, a vacuum environment can be created in the Dewar, the magnet cold conduction assembly is in heat conduction connection with the peripheral face and the end face of a double-pancake coil, and the cold head cold conduction assembly is in heat conduction connection with the cold shield and the magnet cold conduction assembly. The cold shield surrounds the high-temperature superconducting magnet, the magnet cold conduction assembly and the cold head cold conduction assembly. According to the high-temperature superconducting magnet cooling structure, on one hand, input of external heat to the high-temperature superconducting magnet can be reduced, on the other hand, through heat conduction connection with the end face and the peripheral face of the double-pancake coil, the high-temperature superconducting magnet can be fully contacted, heat output is enhanced, and input of heat is further reduced by reducing the temperature of the cold shield; therefore, the requirement for temperature control of the high-temperature superconducting magnet is met when a hot spot appears or under a severe working condition.

The invention discloses a laser cutting head with dust extraction and cooling functions, which comprises a fixed plate, a rotating shaft and a rotating U shaft connected with the rotating shaft are assembled on the fixed plate, one end, far away from the rotating shaft, of the rotating U shaft is connected with an execution main body, one side of the upper end of the execution main body is provided with a dust extraction connecting bin, and the dust extraction connecting bin comprises a bin box; an external dust extraction equipment connector and a pipeline connector are formed in the bin box, side wing lifting and rotating dust extraction devices are arranged on the two sides of the dust extraction connecting bin, the side wing lifting and rotating dust extraction devices are arranged on the execution main body and matched with the dust extraction connecting bin to achieve dust extraction, and the output end of the execution main body is connected with a laser cutting head. A left laser head cooling assembly is arranged at one side end of the laser cutting head, and a right laser head cooling assembly is arranged at the opposite end of the left laser head cooling assembly. The laser cutting head has the beneficial effects that the dust extraction system is directly integrated on the cutting head body, and the mode that traditional laser cutting equipment needs to be independently arranged and connected with a large number of pipelines and equipment is thoroughly changed.

Provided are a head cooling device to be worn on a patient's head during administration of an anticancer drug, and a method for preventing hair loss using the same. [Solution] A head cooling device 100 that is worn on the head 10 of patient P during the administration of anticancer drugs, comprising an ice pack 1 contained in a sealed container and a cap 2 that covers the entire head 10 of patient P and secures the ice pack 1 to the head of patient P, wherein the ice pack 1 contains a mixed aqueous solution of 5.0 to 8.0 wt% salt and 20 to 27 wt% urea.

A visorless cap device for keeping the head cool. The invention relates to a fabric head covering which, by means of polymer beads integrated into the fabric (Figs. 1 and 2 (3)), keeps the head cool when necessary (sun exposure, sports, hiking, post-medical treatment, etc.). The visorless cap (Figs. 1 and 2 (2)) is made entirely of soft polyester and cotton fabric and polyester thread. The rehydrated water beads (polymer) retain moisture and coolness, which is diffused through the cap fabric for several hours. The cap must be immersed in water for a few minutes and wrung out manually before use. The invention is suitable for both adults and children. Figure 1 (for the abstract)

The utility model discloses a kind of municipal drainage pipe 3D printing equipment, it is related to 3D printing equipment technical field, including frame, longitudinal linear motor is symmetrically arranged in frame, support is arranged on longitudinal linear motor, transverse linear motor is arranged between support, mounting plate is arranged on transverse linear motor, spray head is arranged on mounting plate bottom surface, workbench is arranged on frame inner bottom surface;Cooling mechanism is arranged on the outer wall of spray head;The utility model passes through the use of cooling mechanism, it is convenient to cool spray head, avoid spray head and damage due to high temperature, to improve the service life of spray head;Among them, through the use of stirring member, it is convenient to stir the water in water tank, to facilitate the hot water just into water tank and the cold water in water tank are mixed, ensure that the water into spiral cooling pipe again is cold water, to improve the efficiency of spray head cooling.

The utility model relates to the technical field of laser cutting heads, in particular to a cooling structure of a laser cutting head, which adopts a sectional type water cooling layout, three independent water cooling structures are respectively arranged at a collimating mirror part, a focusing mirror part and a nozzle part of the laser cutting head from top to bottom, each water cooling structure is independently connected with a variable frequency water pump, and the variable frequency water pump is connected with a water pump. The flow speed of a water cooling medium can be controlled according to the temperatures of different parts of the laser cutting head, the water cooling structure is provided with different types of flow channels according to the structure of the laser cutting head so as to achieve the stable water cooling effect, the water cooling structure is matched with different heating parts on the cutting head, the cooling efficiency is improved, the water cooling structure is independently controlled, and energy consumption can be reduced. Flow velocity of cooling media can be adjusted according to working conditions, and cutting stability is guaranteed.

The utility model discloses a laser cutting head cooling mechanism which comprises a laser transmitter body, the bottom of the laser transmitter body is fixedly connected with a laser head, a cooling assembly is arranged below the laser transmitter body, and the laser head is fixedly connected with the laser transmitter body. And the cooling assembly comprises a connecting rod, a clamping ring, a lower connecting shaft, a cooling cylinder, an electric rod, a moving plate, a jet head, a connector and an air inlet pipe, the clamping ring is fixedly connected to the connecting rod, and the lower connecting shaft is fixedly connected to the side, away from the clamping ring, of the connecting rod. By arranging the laser emitter body, the laser head, the cooling assembly, the side frame, the main motor and the side rotating shaft, when the laser head needs to be cooled, the main motor is started, the cooling cylinder is located below the laser head, then the air spraying head located below the cooling cylinder blows air to cool the laser head through the air inlet pipe, the whole laser head can be evenly cooled, and the cooling efficiency is improved. The structure is simple, operation is easy, and the service life of the laser head is prolonged.

To provide a head cooling implement, highly efficiently cooling the human body head, when being worn on a human body head, by preventing cool air resulting from a cooling medium from escaping from the head cooling implement and having a "comfortable cooling temperature duration" for keeping a comfortable cooling temperature for a long time.SOLUTION: A head cooling implement comprises a surface member 2r that can be worn over the head and that includes a plastic foaming material 2b having elastic flexibility with elasticity and flexibility and a shape-retaining property for retaining a substantially hollow hemispherical shape, and a cooling medium 3 installed in an inner surface side of the surface member 2. When it is worn over the human body head, the cooling medium 3 is located between the surface member 2 and the human body head, so that the head cooling implement is configured to cool the human body head.SELECTED DRAWING: Figure 2

The application relates to the technical field of war injury nursing, and discloses a portable war injury head cooling device, which comprises a wrapping head mechanism and an auxiliary cooling mechanism. The surface of the wrapping head mechanism is provided with an anti-skid fixing mechanism. The wrapping head mechanism and the anti-skid fixing mechanism are provided with a cold compress mechanism. The end of the cold compress mechanism is provided with a carrying cooling mechanism. The portable war injury head cooling device can stably constrain the cold compress mechanism in a preset position through the cooperation of the wrapping head mechanism and the anti-skid fixing mechanism, significantly improves the fitting degree and reliability of the cold compress operation, and simultaneously, the compatibility of the individual soldier tactical equipment is fully considered in the structural design, a special space is reserved for the wearing of a tactical helmet, the protection state of the soldier can be quickly restored in the sudden combat situation, the soldier can engage in combat without removing the device, and therefore, the continuous combat capability and the battlefield survival efficiency of the soldier are maximally ensured.

The utility model belongs to the technical field of medical instruments, and particularly relates to a microwave ablation needle. The utility model provides a microwave ablation needle, which aims to solve the problems of skin scald and carbonization of a central area of an ablation focus caused by heat accumulation of a needle point after an ablation needle in the prior art is used for a long time, and comprises an outer shell with an installation space inside, a needle rod is fixedly connected onto the outer shell, and an ablation needle head is arranged at one end of the needle rod. One end of the ablation needle head extends into the ablation needle, the other end of the ablation needle head extends into the mounting space, a cooling system is arranged in the mounting space, a conveying pipeline for conveying a cooling medium is arranged in the needle rod, and an internal temperature measuring ring is arranged between the conveying pipeline and the ablation needle head. The cooling medium can be sent to the ablation needle head through the needle head cooling cavity, so that the heat accumulation condition of the ablation needle head is effectively reduced, the phenomena of skin scald and carbonization of a central area of an ablation focus are reduced, and the shape of a solidification necrosis area of microwave ablation is improved.

The invention discloses a manufacturing method for eliminating the hard bending defect of the head of a hot rolled steel coil, which comprises the following steps of: controlling the dry head cooling length of the head of hot rolled strip steel to be convolved by adopting a laminar cooling water spray response calibration method; according to products with different thicknesses and widths, correcting the roll gap correction coefficient of the pinch roll, and coiling the cooled head strip steel by adopting the corrected coiling machine pinch roll; a wrapper roller of the coiling machine adopts a stepping mode, and based on a stepping time sequence tracking method, N circles of coiling is carried out on the part after the head part is convolved; constant-pressure control is carried out in real time on coiling of the strip steel after N circles by adopting M% of the set pressure, so that the wrapper roll always holds the steel coil with small pressure in the steel coil coiling process, and the hard bending defect of the head of the hot rolled steel coil is eliminated. According to the method, the hard bending phenomenon of the inner ring of the hot-rolled thick steel coil is eliminated, the use yield of a user is improved, and the situation that a steel pipe needs secondary machining for jacking operation after pipe manufacturing is reduced.

The utility model relates to the technical field of laser cutting, in particular to a high-precision laser cutting head cooling device for cutting ultra-thin silicon steel strips, which comprises a first shell, a second shell, a control panel, a mounting structure and a cooling structure, the first shell is rotatably connected with the second shell through a hinge, and the right side of the second shell is fixedly connected with the control panel. The front side of the second shell is fixedly connected with two first fixing plates, the front side of the first shell is fixedly connected with two second fixing plates, the first fixing plates are rotationally connected with rotating rods, the left sides of the rotating rods are fixedly connected with threaded rods, the threaded rods are in threaded connection with grips, and the right sides of the vapor chambers are fixedly connected with heat conduction blocks. The inner wall of the first shell and the inner wall of the second shell are both fixedly connected with soaking plates and heat conduction blocks, and heat conduction pipes are fixedly connected into the heat conduction blocks. The laser cutting head is provided with a cooling structure, heat of the laser cutting head can be absorbed, and flow can be automatically adjusted.

The utility model relates to the technical field of casting dies, in particular to a casting die for a bimetal composite hammer head of a crusher, which comprises a main support frame, an upper die, a lower die, a lower support frame and a positioning frame, the upper die and the lower die are arranged in the main support frame, and the upper die and the lower die jointly form a die for casting the composite hammer head. A positioning frame is fixedly installed at the upper end of the upper mold, a positioning assembly for fixing the upper mold and the lower mold is arranged on the surface of the main supporting frame, and a liquid injection assembly for injecting casting liquid is arranged on the surface of the positioning frame. According to the utility model, casting liquid can be quickly cooled and molded, the hammer head can be automatically taken out of the mold after being cooled and molded, the situation that the hammer head is clamped in the mold and is difficult to take out is avoided, and the liquid injection port of the mold can be automatically blocked in the vacuumizing and liquid injection process, so that air cannot enter the mold; therefore, the problem that cracks appear on the surface of the hammer head due to air bubbles is avoided.

A head cooling device includes a central portion that has a predetermined volume of space and is seated on a top portion of the user's head; and a plurality of wing portions radially connected to the central portion and extending in a fan shape, wherein each of the wing portions includes a plurality of chambers each having a predetermined volume of space in which a phase change material is charged, and a plurality of bridges configured to partition and connect each of the plurality of chambers. The central portion and each of the plurality of chambers further incudes a cushioning member to protect the user's head and improve safety by absorbing and alleviating an impact applied from outside.

The application provides a laser head cooling device and a laser head, and relates to the field of lasers; wherein the laser head cooling device comprises a first seat body and a second seat body; the first seat body is provided with a communication hole and a groove; the communication hole is provided through the first seat body along a laser emission direction; the groove is provided around the first seat body, and the groove is provided in a direction away from the communication hole; the second seat body is provided with a mounting hole and a through hole which are communicated with each other; the mounting hole and the through hole both extend along the laser emission direction; the first seat body is mounted in the mounting hole; the communication hole is communicated with the through hole; and the groove and the hole wall of the mounting hole jointly define a cooling water channel. The laser head cooling device is composed of the first seat body and the second seat body; the laser is emitted from the communication hole and the through hole, and heat is generated; the cooling water channel is used for directly cooling the heat; the heat dissipation requirement of the laser head under high-power operation can be met; and the machining quality and the equipment stability are improved.

The application provides a head cooling device for a plastic extruder, which comprises a positioning ring, a filling ring, two mounting rings and a heat exchange assembly. The positioning ring is used for sleeving the outer periphery of the head and has a gap between the outer wall of the head. The inner periphery surface of the positioning ring is provided with an annular groove extending along the circumference and connected at the head and tail. The filling ring is arranged on the inner side of the positioning ring and is adapted to close the opening of the annular groove and is used for sleeving the head to realize heat exchange between the head and the filling ring and between the filling ring and the inside of the annular groove. The two mounting rings are respectively connected on the two sides of the filling ring and are connected with the positioning ring through separable connection structures. The heat exchange assembly is communicated with the annular groove and is used for inputting cooling medium into the annular groove and receiving the cooling medium which has been discharged from the annular groove and has been heat-exchanged with the annular groove. The head cooling device for the plastic extruder can be adapted to different specifications of the head, can ensure the heat exchange efficiency of the head and can ensure the cooling effect of the head.

The utility model discloses a heating blast burner for glass crafts, which relates to the technical field of glass processing equipment and comprises an outer cylinder, an inner cylinder is fixed in the outer cylinder, a gas pipeline is arranged at the top of the outer wall of the inner cylinder, flame nozzles are fixed on the gas pipeline at equal intervals, one end of each flame nozzle extends into the inner cylinder, and the other end of each flame nozzle extends into the inner cylinder. And a water spraying pipe is fixed outside the inner cylinder and is positioned above the gas pipeline. According to the utility model, the annularly distributed flame sprayers are used for heating the glass crafts at the same time and the turntable drives the glass crafts to rotate slowly, so that the heating uniformity is ensured, the temperature of one flame sprayer is detected outside the inner cylinder through the temperature sensor, and when the temperature of the flame sprayers is relatively high, the flame sprayers can rotate slowly. The controller controls the electromagnetic valve to be opened, the spraying head cools the shell of the flame spraying head, then the flame spraying head is prevented from being damaged due to high temperature, and the device has the advantages of being flexible in operation, safe and reliable.

This invention discloses a combined cooling structure for the head of a flame tube and a vortex generator, comprising: a combined cooling structure in which cooling gas adheres tightly to the inner wall of a heat shield to form a cooling gas film, and then flows to the inner wall of an inner rectifier to form a cooling gas film; and a combined cooling structure in which the inner and outer walls of a sleeve formed by the expansion section form a gas film. Cooling gas discharged from the head cooling oblique holes adheres tightly to the inner wall of the heat shield to form a cooling gas film, and then flows to the inner wall of the inner rectifier to form a cooling gas film; cooling gas discharged from the cooling holes of the contraction section, the cooling holes of the expansion section, and multiple oblique holes in the wall can adhere tightly to the inner and outer walls of the expansion section extending into the flame tube head to form a cooling gas film. Combined with the expansion section's structure where the thickness gradually decreases from the contraction section towards the heat shield, this ensures the safety of the gas film formed by the inner and outer walls of the sleeve formed by the expansion section protecting the combustion chamber space within the flame tube head. This solves the problem that the cooling gas discharged by the impact-type divergence cannot adhere tightly to the inner wall of the rectifier of the combustion chamber at the flame tube head and the inner and outer walls of the vortex generator extension section to form a protective gas film.