CN212549477U - Aerosol generating device suitable for high-temperature, high-pressure and high-humidity environment - Google Patents
Aerosol generating device suitable for high-temperature, high-pressure and high-humidity environment Download PDFInfo
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- CN212549477U CN212549477U CN202021571833.0U CN202021571833U CN212549477U CN 212549477 U CN212549477 U CN 212549477U CN 202021571833 U CN202021571833 U CN 202021571833U CN 212549477 U CN212549477 U CN 212549477U
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Abstract
The utility model relates to an aerosol generating device suitable for high temperature, high pressure and high humidity environment belongs to solid powder aerosol technical field. The device comprises a feeding part, a dispersing part and a conveying part; the feeding part comprises a feeder and a speed regulator; the dispersing part comprises a dispersing gas inlet, a dispersing nozzle and a fluidizing chamber; the conveying part comprises a conveying gas inlet, a conveying nozzle, a sleeve and an aerosol outlet. The device not only can be used for solving the problem of agglomeration of solid powder feeding, can also distribute aerosol to the filtration discharge system of high temperature, high pressure, high humidity and large air volume, device simple structure, convenient to use, each interface all adopt the form of connecing soon, and the dismouting is changed conveniently.
Description
Technical Field
The utility model relates to an aerosol generating device suitable for high temperature, high pressure and high humidity environment belongs to solid powder aerosol technical field.
Background
The current solid powder aerosol generating device is mainly characterized in that solid powder is conveyed to a material suction port of a Venturi nozzle by a conveyor belt or a rotary brush in a feeding mode, or the solid powder is directly sucked from a storage container of the solid powder by the Venturi nozzle. The feeding modes have the problems of insufficient powder feeding amount or poor powder feeding uniformity and continuity.
In the dispersion mode of the solid powder, the dispersion is mainly completed by a Venturi nozzle, however, the agglomeration of the solid powder, especially the solid powder with high viscosity has the characteristics of high viscosity and poor fluidity, and the sufficient and uniform dispersion is difficult to ensure only by one-time dispersion of the Venturi nozzle. In both of the double-cylinder multistage fluidization circulation type aerosol generating apparatus of the chinese patent application (CN102658039A) and the long-term fluidization type aerosol generating apparatus of the chinese patent application (CN106512872A) having a self-dispersion function, a porous plate is provided inside a fluidization cylinder, and powder dispersion is performed by high-speed gas in holes, and although the porous plate has a certain fluidization dispersion effect, the connection between the holes of the porous plate and the holes is an air flow dead angle region, so that powder accumulation is easily caused, and the powder feeding amount is affected.
In the conveying mode of the solid powder, the conveying is mainly completed by a Venturi nozzle, but the powder conveying pressure at the outlet of the single Venturi nozzle is very low (not more than 0.3MPa), and the pressure operation condition of a filtering and discharging system is difficult to meet, such as 0.26 MPa-0.73 MPa. In chinese patent application (CN106512872A), a long-term fluidization type aerosol generating device with self-dispersion function is adopted, in which a porous plate is added at the outlet of aerosol generation to secondarily disperse powder, and aerosol is output by positive pressure pneumatic conveying, although this method can satisfy high pressure system conveying, it is difficult to compare the dispersion effect and conveying effect with a venturi nozzle.
In order to solve the above problems, it is necessary to provide a solid powder aerosol generating device which can continuously and uniformly feed powder with a large powder feeding amount, has a good dispersing effect and a good conveying effect, and can also meet the requirement of conveying the powder to a high-pressure system.
Disclosure of Invention
For overcoming the defect that prior art exists, the utility model aims to provide an aerosol generating device suitable for high temperature, high pressure and high humidity environment, the device not only can be used for solving the reinforced reunion problem of solid powder, can also be to the filtration discharge system distribution aerosol of high temperature, high pressure and high humidity and atmospheric volume.
In order to realize the purpose of the utility model, the following technical scheme is provided.
An aerosol generating device suitable for high-temperature, high-pressure and high-humidity environments comprises a feeding portion, a dispersing portion and a conveying portion. The feeding part comprises a feeder and a speed regulator; the dispersing part comprises a dispersing gas inlet, a dispersing nozzle and a fluidizing chamber; the conveying part comprises a conveying gas inlet, a conveying nozzle, a sleeve and an aerosol outlet.
In the feeding part, the feeder is connected with the speed regulator through a power line.
The feeder is used for feeding solid powder materials to the aerosol generating part, and the feeding speed is adjusted by the speed regulator according to the required aerosol concentration.
The speed regulator is used for regulating the feeding speed of the feeder according to the required aerosol concentration.
Preferably the feeder comprises a hopper, a feeder and a feed tube.
The hopper is used for holding powder materials, and the feeder is connected under the hopper.
The feeder mainly comprises pay-off rotor and motor, pay-off rotor and motor coaxial coupling, be used for with powder material in the hopper is delivered to the inlet pipe.
The feeder adjusts the rotating speed of the motor by changing the frequency through the speed regulator, and then adjusts the blanking speed of the feeder.
The circumference of a feeding rotor of the feeder is preferably provided with a groove, powder materials in a hopper flow into the groove by self weight, and solid powder in the groove enters a feeding pipe under the action of gravity along with the rotation of the feeding rotor; the feeding speed can be controlled by adjusting the size and the rotating speed of the upper groove of the feeding rotor so as to control the powder sending amount.
A feed pipe communicates with the fluidizing chamber of the dispersing section and introduces the material into the fluidizing chamber.
In the dispersing part, a dispersing gas inlet and a dispersing nozzle are integrated into a tubular nozzle structure, wherein a pipe part with a larger caliber at one end is the dispersing gas inlet, and a nozzle part with a smaller caliber at the other end is the dispersing nozzle. The tubular nozzle structure is in threaded connection with the fluidizing chamber, the dispersing gas inlet is outside the fluidizing chamber, and the dispersing nozzle is inside the fluidizing chamber.
The dispersion gas inlet is used for introducing compressed gas for dispersing solid powder; preferably, the dispersing gas inlet is located at the height of the fluidizing chamber 3/28-5/28.
The dispersing nozzle is provided with a radial outlet towards the fluidizing chamber for dispersing. Preferably, the dispersion nozzle is further provided with an outlet towards the bottom of the fluidization chamber to prevent the deposition of solid powders. Preferably, 3 to 5 dispersing nozzles are arranged, are uniformly distributed along the circumferential direction of the fluidizing chamber and are positioned on the same plane; the dispersing nozzle is used for accelerating the introduced compressed gas to disperse the solid powder.
The fluidizing chamber is used to boil the dispersed solid powder in suspension into a fluidized state. Preferably the fluidising chamber is a cylindrical drum; preferably, the included angle between the feeding pipe and the axis of the cylinder body of the fluidization chamber is 30-50 degrees, so that the powder material can smoothly slide along the feeding pipe and enter the fluidization chamber.
Compressed air enters the fluidizing chamber from the dispersing gas inlet, and is accelerated by the dispersing nozzles to disperse the falling solid powder at the intersection points of the nozzles, so that the falling solid powder is in a suspension boiling fluidizing state in the fluidizing chamber.
In the conveying part, a conveying gas inlet and a conveying nozzle are integrated into a tubular nozzle structure, wherein a pipe part with a larger caliber at one end is the conveying gas inlet, and a nozzle part with a smaller caliber at the other end is the conveying nozzle. The sleeve pipe runs through the fluidization chamber, and both ends stretch out outside the fluidization chamber, and one end is the aerosol export, and the other end cover is equipped with the tubulose nozzle structure, the tubulose nozzle structure sets up with the sleeve pipe is coaxial and adopts threaded connection, and the conveying gas import stretches out sleeve pipe one end, lies in the fluidization chamber outward, and the conveying nozzle stretches into in the sleeve pipe, lies in the fluidization chamber, and sheathed tube pipe wall trompil just is corresponding to the conveying nozzle exit.
The conveying gas inlet is used for introducing compressed gas for conveying solid powder.
The conveying nozzle is used for accelerating the introduced compressed gas, on one hand, the solid powder in the fluidization chamber is introduced into the sleeve from the sleeve opening through the Venturi effect and is conveyed to the aerosol outlet, and on the other hand, the introduced solid powder is subjected to secondary dispersion.
The sleeve is preferably located at a height of 16/25-24/25 of the fluidizing chamber.
Preferably, the head of the delivery nozzle is located 1/3-2/3 of the length direction of the sleeve opening.
Compressed air enters from a conveying gas inlet, is accelerated by a conveying nozzle, introduces dispersed powder in the fluidizing chamber into the sleeve by the Venturi effect, and is distributed into the pipeline through an aerosol outlet.
The aerosol outlet is connected with the aerosol outlet conveying pipe, the aerosol outlet conveying pipe is connected with the high-temperature high-pressure high-humidity pipeline through a valve, the front end of the valve is provided with a pressure gauge, and when the pressure of the pressure gauge is greater than the pressure in the high-temperature high-pressure high-humidity pipeline, the valve is opened, and the aerosol can be mixed.
Advantageous effects
1. The utility model provides an aerosol generating device suitable for high temperature, high pressure and high humidity environment, adopt the structural style of fluidization chamber in the device, set up the dispersion nozzle in the bottom, dispersion gas forms high-speed efflux through the acceleration in dispersion nozzle terminal surface drill way, and the solid powder material takes place acutely to clash the striking and is dispersed with the friction in the crossing district of gas efflux, rises and is the boiling fluidization state in the fluidization chamber along with the air current again under the pressure differential effect, has better dispersion effect to solid powder, and dispersion nozzle side drill way spun high-speed air current can prevent solid powder at the bottom deposit.
2. The utility model provides an aerosol generating device suitable for high temperature, high pressure and high humidity environment, setting up delivery nozzle in the device, delivery nozzle outer joint has the sleeve pipe, forms high-speed efflux when conveying gas through delivery nozzle with higher speed, by the venturi effect, pressure in delivery nozzle exit is lower, powder in the fluidization chamber is introduced to the cover intraductal by sheathed tube trompil under the pressure differential effect, get into behind the sleeve pipe under the shearing friction effect of delivery nozzle export high velocity air current, solid powder is by the secondary dispersion, through the front end pressure of adjustment dispersion nozzle and delivery nozzle, can satisfy high pressure system's aerosol and carry.
3. The utility model provides an aerosol generating device suitable for high temperature, high pressure and high humidity environment, adopt the feeding mode of speed regulator and feeder in the device, realized under the motor continuous operation's condition, drive the feeder and carry out continuous even powder that send to the unloading volume and the continuous transport that adjusts the feeder rotational speed and can satisfy big powder feeding volume through adjusting the feeder every turn.
4. The utility model provides an aerosol generating device suitable for high temperature, high pressure and high humidity environment, the simple structure of device, convenient to use, each interface all adopt the form of connecing soon, and the dismouting is changed conveniently.
Drawings
Fig. 1 is a schematic view of an overall structure of an aerosol generating device suitable for a high-temperature, high-pressure and high-humidity environment in an embodiment.
FIG. 2 is a schematic view showing the structures of a charging section and a dispersing section in the examples.
FIG. 3 is a schematic view of the structure of a conveying section in the embodiment.
Wherein, 1-a charging part, 11-a hopper, 12-a feeder, 13-a speed regulator, 14-a feeding pipe; 2-dispersing part, 21-dispersing gas inlet, 22-dispersing nozzle, 23-fluidizing chamber; 3-conveying part, 31-conveying gas inlet, 32-conveying nozzle, 33-sleeve, 34-aerosol outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Example 1
An aerosol generating device suitable for use in a high temperature, high pressure and high humidity environment, as shown in fig. 1, comprises a charging section 1, a dispersing section 2 and a conveying section 3. The feeding part 1 comprises a feeder and a speed regulator 13; the dispersing section 2 includes a dispersing gas inlet 21, a dispersing nozzle 22 and a fluidizing chamber 23; the delivery section 3 comprises a delivery gas inlet 31, a delivery nozzle 32, a cannula 33 and an aerosol outlet 34.
As shown in fig. 2, in the charging section 1, the feeder is connected to the governor 13 through a power line.
The feeder is used for feeding solid powder materials to the aerosol generating part, and the feeding speed is adjusted by the speed regulator 13 according to the required aerosol concentration.
The governor 13 is used to adjust the feed rate of the feeder according to the desired aerosol concentration.
The feeder comprises a hopper 11, a feeder 12 and a feed tube 14.
The feeder 12 is mainly composed of a feeding rotor and a motor, wherein the feeding rotor is coaxially connected with the motor and is used for feeding the powder material in the hopper 11 to the feeding pipe 14.
The feeding device adjusts the rotating speed of a motor by a speed regulator 13 through changing frequency, and further adjusts the blanking speed of the feeding device 12.
The circumference of a feeding rotor of the feeder 12 is provided with a groove, powder materials in the hopper 11 flow into the groove by self weight, and solid powder in the groove enters the feeding pipe 14 under the action of gravity along with the rotation of the feeding rotor; the feeding speed can be controlled by adjusting the size and the rotating speed of the upper groove of the feeding rotor so as to control the powder sending amount.
In the embodiment, a hopper 11 in a feeding part 1 is connected with an inlet of a feeder 12 in a clamping manner, powder materials in the hopper 11 fall on a feeding rotor of the feeder 12, 13g of powder can be taken away from the hopper 11 by one turn of the feeding rotor and sent to a feeding pipe 14, an outlet of the feeder 12 is connected with the inlet of the feeding pipe 14 in the clamping manner, the feeding rotor is coaxially connected with a motor, and a speed regulator 13 regulates the rotating speed of the motor within the frequency range of 10Hz to 50Hz, so that the feeding rotor can meet the requirement of feeding the powder to the feeding pipe 14 within the range of 1kg/h to 5kg/h, and the requirement of different aerosol concentrations of a system under different air flow conditions can be met.
The feed pipe 14 communicates with the fluidizing chamber 23 of the dispersing section 2 and guides the material into the fluidizing chamber 23, the feed pipe 14 being welded to the side wall of the fluidizing chamber 23 at a height position 1/2.
As shown in fig. 2, in the dispersing section 2, the dispersing gas inlet 21 and the dispersing nozzle 22 are formed as an integral tubular nozzle structure, in which a pipe portion having a large diameter at one end is the dispersing gas inlet 21 and a mouth portion having a small diameter at the other end is the dispersing nozzle 22. The tubular nozzle structure is in threaded connection with the fluidizing chamber 23, the dispersing gas inlet 21 being outside the fluidizing chamber 23 and the dispersing nozzle 22 being inside the fluidizing chamber 23.
A dispersion gas inlet 21 for introducing a compressed gas for dispersing the solid powder; the dispersion gas inlet 21 is located at the level of 1/8 of the fluidizing chamber 23.
The dispersion nozzle 22 is provided with a radial outlet towards the fluidization chamber 23 for dispersion; an outlet is also provided towards the bottom of the fluidising chamber 23 to prevent settling of the solid powder. 3 dispersing nozzles 22 are arranged, are uniformly distributed along the circumferential direction of the fluidizing chamber 23 and are positioned on the same plane; the dispersing nozzle 22 is used to accelerate the introduction of the compressed gas to disperse the solid powder.
The fluidizing chamber 23 serves to boil the dispersed solid powder in suspension into a fluidized state. The fluidizing chamber 23 is a cylindrical cylinder; the included angle between the feeding pipe 14 and the cylinder axis of the fluidization chamber 23 is 35 degrees, so that the powder material can smoothly slide along the feeding pipe 14 and enter the fluidization chamber 23.
Compressed air enters the fluidizing chamber 23 from the dispersing gas inlet 21, and is accelerated by the dispersing nozzles 22 to disperse falling solid powder at the intersection of the nozzles, so that the falling solid powder is in a fluidized state of suspension boiling in the fluidizing chamber 23.
As shown in fig. 3, in the delivery part 3, the delivery gas inlet 31 and the delivery nozzle 32 are an integral tubular nozzle structure, in which a pipe portion having a larger caliber at one end is the delivery gas inlet 31 and a mouth portion having a smaller caliber at the other end is the delivery nozzle 32. The sleeve 33 penetrates through the fluidization chamber 23 and is connected with the fluidization chamber 23 in a threaded manner, two ends of the sleeve 33 extend out of the fluidization chamber 23, one end of the sleeve is an aerosol outlet 34, the other end of the sleeve is sleeved with a tubular nozzle structure, the tubular nozzle structure and the sleeve 33 are coaxially arranged and are in threaded connection, the conveying gas inlet 31 extends out of one end of the sleeve 33 and is located outside the fluidization chamber 23, the conveying nozzle 32 extends into the sleeve 33 and is located in the fluidization chamber 23, and the wall of the sleeve 33 is provided with a square hole and corresponds to the outlet of the conveying nozzle 32.
The conveying gas inlet 31 is used for introducing compressed gas for conveying solid powder.
The delivery nozzle 32 is used for accelerating the introduced compressed gas, the gas with the pressure higher than the system pressure is accelerated to form high-speed jet flow of 80-120 m/s through the delivery nozzle 32, on one hand, the solid powder in the fluidization chamber 23 is introduced into the sleeve 33 from the opening of the sleeve 33 through the Venturi effect and is sent to the aerosol outlet 34, and on the other hand, the introduced solid powder is subjected to secondary dispersion.
The sleeve 33 is located at the level of 4/5 of the fluidizing chamber 23.
The head of the delivery nozzle 32 is located at 2/3 along the length of the square hole in the wall of the sleeve 33.
Compressed air enters from a delivery gas inlet 31 and is accelerated through a delivery nozzle 32 to introduce the dispersed powder in the fluidization chamber 23 into a sleeve 33 by venturi effect and is dispensed into the pipeline through an aerosol outlet 34.
The aerosol outlet 34 is connected with the aerosol outlet conveying pipe in a clamping hoop mode, the aerosol outlet conveying pipe is connected with the high-temperature high-pressure high-humidity pipeline through a valve, the front end of the valve is provided with a pressure gauge, and when the pressure of the pressure gauge is greater than the pressure in the high-temperature high-pressure high-humidity pipeline, the valve is opened, so that the aerosol can be mixed.
The above description is only the specific embodiment of the present invention, but the protection scope of the present invention is not limited to this, for example, the feeder 12 of the feeding portion 1 can also be selected from a screw feeding form, the number and the arrangement of the dispersing nozzles 22 can also be changed accordingly, and the hole on the sleeve 33 of the conveying portion 3 can also be opened into a circular hole. Any changes or substitutions that may be easily conceived by a person skilled in the art within the scope of the present disclosure are intended to be covered by the scope of the present disclosure.
Claims (10)
1. The utility model provides an aerosol generating device suitable for high temperature high pressure high humidity environment which characterized in that: the device comprises a feeding part (1), a dispersing part (2) and a conveying part (3); the feeding part (1) comprises a feeder and a speed regulator (13); the dispersion part (2) comprises a dispersion gas inlet (21), a dispersion nozzle (22) and a fluidization chamber (23); the conveying part (3) comprises a conveying gas inlet (31), a conveying nozzle (32), a sleeve (33) and an aerosol outlet (34);
the feeder is connected with the speed regulator (13) through a power line; the feeding pipe (14) is connected with the fluidizing chamber (23);
the dispersing gas inlet (21) and the dispersing nozzle (22) are of an integrated tubular nozzle structure, wherein a pipe part with a larger caliber at one end is the dispersing gas inlet (21), and a nozzle part with a smaller caliber at the other end is the dispersing nozzle (22); the tubular nozzle structure is in threaded connection with the fluidizing chamber (23), the dispersing gas inlet (21) is outside the fluidizing chamber (23), and the dispersing nozzle (22) is inside the fluidizing chamber (23); the dispersion nozzle (22) is provided with a radial outlet towards the fluidization chamber (23);
the conveying gas inlet (31) and the conveying nozzle (32) are of an integrated tubular nozzle structure, wherein a pipe part with a larger caliber at one end is the conveying gas inlet (31), and a nozzle part with a smaller caliber at the other end is the conveying nozzle (32); the sleeve (33) penetrates through the fluidization chamber (23), two ends of the sleeve extend out of the fluidization chamber (23), one end of the sleeve is an aerosol outlet (34), the other end of the sleeve is sleeved with a tubular nozzle structure, the tubular nozzle structure and the sleeve (33) are coaxially arranged and are in threaded connection, the conveying gas inlet (31) extends out of one end of the sleeve (33) and is positioned outside the fluidization chamber (23), the conveying nozzle (32) extends into the sleeve (33) and is positioned in the fluidization chamber (23), and the wall of the sleeve (33) is provided with an opening and corresponds to the outlet of the conveying nozzle (32); the aerosol outlet (34) is connected with an aerosol outlet conveying pipe, the aerosol outlet conveying pipe is connected with the high-temperature high-pressure high-humidity pipeline through a valve, and a pressure gauge is arranged at the front end of the valve.
2. An aerosol generating device suitable for use in high temperature, high pressure and high humidity environment according to claim 1, wherein: the feeder comprises a hopper (11), a feeder (12) and a feeding pipe (14); a feeder (12) is connected under the hopper (11); the feeder (12) mainly comprises a feeding rotor and a motor, wherein the feeding rotor is coaxially connected with the motor.
3. An aerosol generating device suitable for use in high temperature, high pressure and high humidity environment according to claim 2, wherein: the feed rotor of the feeder (12) is circumferentially slotted.
4. An aerosol generating device suitable for use in high temperature, high pressure and high humidity environment according to claim 1, wherein: the dispersing gas inlet (21) is positioned at the height of 3/28-5/28 of the fluidizing chamber (23).
5. An aerosol generating device suitable for use in high temperature, high pressure and high humidity environment according to claim 1, wherein: the dispersion nozzle (22) is also provided with an outlet towards the bottom of the fluidization chamber (23).
6. An aerosol generating device suitable for use in high temperature, high pressure and high humidity environment according to claim 1, wherein: a plurality of dispersing nozzles (22) are arranged, are uniformly distributed along the circumferential direction of the fluidizing chamber (23) and are positioned on the same plane.
7. An aerosol generating device suitable for use in high temperature, high pressure and high humidity environment according to claim 1, wherein: the fluidization chamber (23) is a cylindrical barrel; the included angle between the feeding pipe (14) and the axis of the cylinder body of the fluidization chamber (23) is 30-50 degrees.
8. An aerosol generating device suitable for use in high temperature, high pressure and high humidity environment according to claim 1, wherein: the sleeve (33) is positioned at the height of 16/25-24/25 of the fluidization chamber (23).
9. An aerosol generating device suitable for use in high temperature, high pressure and high humidity environment according to claim 1, wherein: the head of the delivery nozzle (32) is located at 1/3-2/3 in the length direction of the opening of the sleeve (33).
10. An aerosol generating device suitable for use in high temperature, high pressure and high humidity environment according to claim 1, wherein: the feeder comprises a hopper (11), a feeder (12) and a feeding pipe (14); a feeder (12) is connected under the hopper (11); the feeder (12) mainly comprises a feeding rotor and a motor, wherein the feeding rotor is coaxially connected with the motor; the circumference of a feeding rotor of the feeder (12) is provided with a groove;
the dispersing gas inlet (21) is positioned at the height of 3/28-5/28 of the fluidizing chamber (23);
the dispersion nozzle (22) is also provided with an outlet towards the bottom of the fluidization chamber (23); a plurality of dispersing nozzles (22) are arranged, are uniformly distributed along the circumferential direction of the fluidizing chamber (23) and are positioned on the same plane;
the fluidization chamber (23) is a cylindrical barrel; the included angle between the feeding pipe (14) and the axis of the cylinder body of the fluidization chamber (23) is 30-50 degrees;
the sleeve (33) is positioned at the height of 16/25-24/25 of the fluidization chamber (23);
the head of the delivery nozzle (32) is located at 1/3-2/3 in the length direction of the opening of the sleeve (33).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021571833.0U CN212549477U (en) | 2020-07-31 | 2020-07-31 | Aerosol generating device suitable for high-temperature, high-pressure and high-humidity environment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021571833.0U CN212549477U (en) | 2020-07-31 | 2020-07-31 | Aerosol generating device suitable for high-temperature, high-pressure and high-humidity environment |
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| Publication Number | Publication Date |
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| CN212549477U true CN212549477U (en) | 2021-02-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021571833.0U Active CN212549477U (en) | 2020-07-31 | 2020-07-31 | Aerosol generating device suitable for high-temperature, high-pressure and high-humidity environment |
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| CN (1) | CN212549477U (en) |
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Effective date of registration: 20210422 Address after: 056027 No. 17, Exhibition Road, Handan, Hebei Patentee after: China Shipbuilding Industry Corporation 718th Research Institute Patentee after: CHINA NUCLEAR POWER ENGINEERING Co.,Ltd. Address before: 056027 No. 17, Exhibition Road, Handan, Hebei Patentee before: China Shipbuilding Industry Corporation 718th Research Institute |