CN211936271U - Molecular sieve device for removing water vapor in sulfur hexafluoride gas - Google Patents
Molecular sieve device for removing water vapor in sulfur hexafluoride gas Download PDFInfo
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- CN211936271U CN211936271U CN201922134106.1U CN201922134106U CN211936271U CN 211936271 U CN211936271 U CN 211936271U CN 201922134106 U CN201922134106 U CN 201922134106U CN 211936271 U CN211936271 U CN 211936271U
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Abstract
The molecular sieve device for removing water vapor in sulfur hexafluoride gas comprises a cylinder body, wherein an upper cover plate and a lower cover plate are respectively and horizontally arranged at an upper port and a lower port of the cylinder body, a heat conduction sleeve which is concentric with the cylinder body is fixedly arranged on the lower surface of the upper cover plate, a through hole corresponding to the heat conduction sleeve is formed in the upper cover plate, a heating rod is coaxially arranged in the heat conduction sleeve, and the upper end of the heating rod extends out of the through hole in the upper cover plate and is fixedly connected with the upper cover plate through an upper fixed sealing assembly; a metal filter disc is arranged below the lower end of the heat conduction sleeve in the cylinder body, Al ₂ O ₃ particles are filled in the cylinder body, and a heat dissipation assembly in contact with the Al ₂ O ₃ particles is arranged on the outer circle of the heat conduction sleeve. The utility model obviously improves the drying efficiency of the molecular sieve and the service life of the drying agent Al ₂ O ₃; the regeneration of Al ₂ O ₃ particles is fast, the sintering phenomenon of Al ₂ O ₃ particles is avoided, the sealing performance of the molecular sieve is improved, the manufacturing cost is reduced, and the convenience of installation and maintenance of the heating rod is improved.
Description
Technical Field
The utility model belongs to the technical field of sulfur hexafluoride gas recovery, purification, backfill, concretely relates to molecular sieve device for detach vapor in sulfur hexafluoride gas.
Background
Sulfur hexafluoride (SF)6) Gas recovery equipment, mainly used for switching protective gas SF in national power grid6And recycling and reusing. The SF6 gas cannot be directly discharged into the atmosphere, needs to be recovered and treated, and the treated SF gas6When the relevant standard is met, the protective gas can be recharged into the switchgear as protective gas. SF6Before the gas is recovered, it often contains water vapor and other impurities, in the current standard, SF6The fresh gas must not contain impurities such as water vapor, which require removal.
Al2O3Is a white powdery solid, can be made into particles with required diameter, Al2O3The particles have good water adsorption function, and Al2O3When heating, the water in the container can be evaporated to restore the original adsorption function. SF6The molecular sieve device is designed based on the principle, and the device is usually called 'molecular sieve' for short.
The molecular sieve is usually connected in series in SF6In the preceding stage recovery line of the recovery vehicle, in SF6Before the gas recovery compressor, at SF6During gas recovery, all SF6The gas must pass through a molecular sieve and react with Al2O3Sufficiently contact to sufficiently absorb SF6Water content in the crude oil. When Al is present2O3If the particles are saturated with water, the particles should be heated and regenerated in time to allow Al to be adsorbed2O3The granules remove the adsorbed water and recover the original adsorption capacity.
At present, a molecular sieve structure is formed by filling Al in a closed container2O3The particle container is cylindrical, and an air inlet and an air outlet are respectively arranged on the left side and the right side of the side wall of the container. Meanwhile, the air inlet and the air outlet are staggered up and down, and the bottom of the container is upwards provided with an electric heating rod to meet the requirement of Al2O3The need for regeneration. The bottom of the molecular sieve is upwards provided with a heating rod. The heat can not quickly cover all Al in large area during heating2O3Particles, which cause sintering of particles near the heating rod due to overheating and insufficient regeneration of particles far from the heating rod, seriously affect Al2O3The adsorption efficiency and the service life of the particles.
SUMMERY OF THE UTILITY MODEL
The utility model provides a can improve the molecular sieve's absorption and the molecular sieve device that is used for detaching sulfur hexafluoride gas normal water vapour of regenerated efficiency for solve the weak point among the prior art.
In order to solve the technical problem, the utility model adopts the following technical scheme: a molecular sieve device for removing water vapor in sulfur hexafluoride gas comprises a vertically arranged cylindrical cylinder body, an upper cover plate and a lower cover plate are horizontally arranged at an upper port and a lower port of the cylinder body respectively, and Al is arranged at an eccentric position of the top of the upper cover plate2O3A feed inlet, and Al arranged at the lower part of the front side of the cylinder body2O3A discharge port, wherein a sulfur hexafluoride gas inlet is formed in the lower part of the left side of the cylinder body, a sulfur hexafluoride gas outlet is formed in the upper part of the right side of the cylinder body, a heat conduction sleeve which is concentric with the cylinder body is fixedly arranged on the lower surface of the upper cover plate, a through hole which corresponds to the heat conduction sleeve is formed in the upper cover plate, a heating rod is coaxially arranged in the heat conduction sleeve, the outer circle of the heating rod is in clearance fit with the inner circle of the heat conduction sleeve, and the upper end of the heating rod extends out of the through; a metal filter disc is arranged below the lower end of the heat conduction sleeve in the cylinder body, the metal filter disc is arranged in an inclined mode with a high back and a low front, a sulfur hexafluoride gas inlet is arranged below the metal filter disc, the lowest part of the front side of the metal filter disc is located with Al2O3The lowest part of the discharge port is flush, and Al is filled above the metal filter disc, below the upper cover plate and outside the heat conduction sleeve in the cylinder body2O3Particles, Al arranged on the outer circle of the heat conducting sleeve2O3A heat sink assembly in contact with the particles.
The upper fixed sealing component comprises a fixed sleeve, gland nut and locking taper sleeve, fixed cover lower part is installed in the through-hole, fixed cover excircle middle part an organic whole is equipped with the holding ring, the external diameter of holding ring is greater than the internal diameter of through-hole, holding ring excircle fixed connection is at the upper cover plate upper surface, fixed cover internal diameter is greater than the heating rod diameter, the heating rod is worn to establish in fixed cover, the outer lane on fixed cover upper portion is provided with the external screw thread, fixed cover upper portion inner circle and locking taper sleeve's outer lane are thick down thin conical structure, locking taper sleeve and gland nut all overlap on the heating rod, the outer lane and the cooperation of fixed cover upper portion inner circle of locking taper sleeve, gland nut's hole is big end down's step hole, gland nut's lower part and fixed cover upper portion threaded connection, gland nut's inner circle step and the upper end crimping cooperation of locking taper.
The heat dissipation assembly comprises at least two sections of heat dissipation cylinders, round holes which are sleeved on the outer circle of the heat conduction sleeve and fixed on the outer circle of the heat conduction sleeve are formed in the heat dissipation cylinders, a spacer sleeved on the outer circle of the heat conduction sleeve is arranged between every two adjacent heat dissipation cylinders, the adjacent two sections of heat dissipation cylinders are connected in a locating mode through round pins which penetrate through the spacer, and a plurality of heat dissipation battens of the integrated structure are arranged on the outer portion of each section of heat dissipation cylinder.
The heat conduction sleeve mouth is provided with the cylinder stopper that is used for spacing heating rod, and the cylinder stopper is as an organic whole with the welding of heat conduction sleeve pipe, and cylinder stopper lower part is equipped with the double-screw bolt with axial an organic whole, and the cover is equipped with the separation blade that is used for spacing heat dissipation section of thick bamboo on the double-screw bolt, and the spiro union has the stop nut with separation blade lower surface crimping complex on the double-screw bolt.
The upper cover plate is provided with a pressure gauge interface Al2O3Feed inlet and Al2O3The discharge ports are all provided with a sealing plug screw.
The upper cover plate is provided with an electric wire joint cover which covers the compression nut inside, the top of the electric wire joint cover is provided with an opening, and the upper end of the heating rod is connected with a lead which upwards extends out of the compression nut and the opening.
Adopt above-mentioned technical scheme, the utility model has the following characteristics and technological effect:
the heat conduction sleeve pipe chooses stainless steel for use, and the upper end is sealing connection with the upper cover plate welding, and the lower extreme just has cylinder stopper sealing connection, and the installation of heating rod is intraductal at heat conduction guide sleeve, can solve not only heating but also well sealed problem through heat conduction of heat conduction guide sleeve pipe.
A gap is reserved between the heat conduction sleeve and the heating rod to ensure that the heating rod can be smoothly taken out after heating creep deformation, so that the heating rod is convenient to replace even if the heating rod is burnt out. Structural design's improvement, including inserting the heating rod from the cylinder body top down, very big improvement heating rod installation and change technology.
The utility model discloses an outside an organic whole of a heat dissipation section of thick bamboo set up the heat dissipation slat can heat conduction fast and enlarge heat radiating area. The shapes of the heat dissipation cylinder and the heat dissipation strip plate are designed according to the internal volume and the shape of the cylinder body. The material is selected from aluminum alloy, and the aluminum alloy has the characteristics of quick heat dissipation, good processing technology and low cost.
When the heat dissipation component is installed with the heat conduction sleeve, the method of preheating the heat dissipation component is adopted, so that the installation aperture of the heat dissipation cylinder is enlarged due to thermal expansion, and the heat dissipation cylinder is easily installed on the heat conduction sleeve. The radiating strips have umbrella-shaped surface, and the interval between adjacent radiating strips is proper, i.e. Al is required2O3The particles can smoothly fill the periphery of the radiating fin, and meanwhile, the peripheral particles can be uniformly heated.
In order to prevent the heat dissipation assembly from sliding off the heat conduction sleeve due to thermal expansion of the molecular sieve device after heating, the lower part of the heat dissipation assembly is fixed by a limit nut and a baffle plate.
In order to solve the problem of the processing technology of the middle hole of the radiating cylinder, the radiating assembly is cut into three sections, each section is blocked by a spacer, and is radially positioned by a round pin, so that the radial isotropy of each section of the radiating strip plate is ensured.
In addition, the cylinder body is provided with Al independently2O3Feed inlet and Al2O3And compared with the existing molecular sieve, the discharge port is provided with the sealing screw plug, so that the manufacturing cost is reduced, and the sealing property of the molecular sieve is greatly improved.
The upper fixed sealing assembly enables the locking taper sleeve to be respectively in compression joint fit with the fixed sleeve and the heating rod by screwing the compression nut, so that the heating rod is firmly clamped.
To sum up, the utility model discloses an improve the structural design of molecular sieve, experimental verification many times has obviously improved the availability factor and the drier Al of molecular sieve2O3Service life: adsorption of SF6The water content in the product is high; al (Al)2O3Fast particle regeneration and no Al2O3Sintering phenomenon of the particles. By designing independent Al2O3The particle feeding and discharging port simplifies the feeding and discharging operation of the molecular sieve, improves the sealing property of the molecular sieve, reduces the manufacturing cost of the molecular sieve, and improves the convenience of installation and maintenance of the heating rod.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional schematic view of the heat sink assembly of FIG. 2;
FIG. 4 is an enlarged view of the spacer and round pin of FIG. 2
FIG. 5 is a top view of FIG. 4;
FIG. 6 is an enlarged view of the assembly of the upper cover plate, upper stationary seal assembly, heater bar and heat conductive sleeve of FIG. 2;
fig. 7 is a top view of a metal filter sheet.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figures 1-7, the molecular sieve device for removing water vapor in sulfur hexafluoride gas of the present invention comprises a vertically arranged cylindrical cylinder body 1, wherein an upper cover plate 2 and a lower cover plate 3 are horizontally arranged at the upper port and the lower port of the cylinder body 1 respectively, and Al is arranged at the eccentric position of the top of the upper cover plate 22O3A feed inlet 4, and Al is arranged at the lower part of the front side of the cylinder body 12O3A discharge port 5, a sulfur hexafluoride gas inlet 6 arranged at the lower part of the left side of the cylinder body 1, a sulfur hexafluoride gas outlet 7 arranged at the upper part of the right side of the cylinder body 1, and an upper partThe lower surface of the cover plate 2 is fixedly provided with a heat conduction sleeve 8 which is concentric with the cylinder body 1, the upper cover plate 2 is provided with a through hole corresponding to the heat conduction sleeve 8, the heat conduction sleeve 8 is internally and coaxially provided with a heating rod 9, the excircle of the heating rod 9 is in clearance fit with the inner circle of the heat conduction sleeve 8, and the upper end of the heating rod 9 extends out of the through hole on the upper cover plate 2 and is fixedly connected with the upper cover plate 2 through an upper fixed sealing component 10; a metal filter disc 11 is arranged below the lower end of the heat conduction sleeve 8 in the cylinder body 1, the metal filter disc 11 is arranged in an inclined mode with a high back and a low front, a sulfur hexafluoride gas inlet 6 is arranged below the metal filter disc 11, the lowest part of the front side of the metal filter disc 11 and Al are arranged2O3The lowest part of the discharge port 5 is flush, Al is filled in the cylinder body 1 above the metal filter disc 11, below the upper cover plate 2 and outside the heat conduction sleeve 82O3Particles 12, the outer circle of the heat conduction sleeve 8 is provided with Al2O3The particles 12 contact the heat sink assembly 13.
The upper fixed sealing assembly 10 comprises a fixed sleeve 14, a compression nut 15 and a locking taper sleeve 16, the lower part of the fixed sleeve 14 is arranged in a through hole, the middle part of the excircle of the fixed sleeve 14 is integrally provided with a positioning ring 17, the outer diameter of the positioning ring 17 is larger than the inner diameter of the through hole, the excircle of the positioning ring 17 is welded on the upper surface of the upper cover plate 2, the inner diameter of the fixed sleeve 14 is larger than the diameter of a heating rod 9, the heating rod 9 is arranged in the fixed sleeve 14 in a penetrating way, the outer ring of the upper part of the fixed sleeve 14 is provided with external threads, the inner ring of the upper part of the fixed sleeve 14 and the outer ring of the locking taper sleeve 16 are both in a conical structure with a thick upper part and a thin lower part, the locking taper sleeve 16 and the compression nut 15 are both sleeved on the heating rod 9, the outer ring of the locking taper sleeve 16 is, so that the inner ring of the locking taper sleeve 16 is sealed and fixedly connected with the heating rod 9.
The heat dissipation assembly 13 comprises three sections of heat dissipation cylinders 18, round holes which are sleeved and fixed on the outer circle of the heat conduction sleeve 8 are formed in the heat dissipation cylinders 18, a spacer 19 which is sleeved on the outer circle of the heat conduction sleeve 8 is arranged between every two adjacent heat dissipation cylinders 18, the adjacent two sections of heat dissipation cylinders 18 are connected in a locating mode through round pins 20 which penetrate through the spacer 19, and a plurality of heat dissipation laths 21 of an integrated structure are arranged on the outer portion of each section of heat dissipation cylinder 18.
The opening of the heat conduction sleeve 8 is provided with a cylindrical plug 22 for limiting the heating rod 9, the cylindrical plug 22 and the heat conduction sleeve 8 are welded into a whole, the lower part of the cylindrical plug 22 is coaxially and integrally provided with a stud 23, the stud 23 is sleeved with a baffle plate 27 for limiting the heat dissipation cylinder 18, and the stud 23 is screwed with a limiting nut 24 which is in compression joint with the lower surface of the baffle plate 27.
The upper cover plate 2 is provided with a pressure gauge interface 28, Al2O3Feed port 4 and Al2O3The discharge ports 5 are provided with sealing screw plugs 25.
An electric wire joint cover 26 for covering the compression nut 15 is arranged on the upper cover plate 2, an opening is formed in the top of the electric wire joint cover 26, and a lead which extends upwards out of the compression nut 15 and the opening is connected to the upper end of the heating rod 9.
Heat conduction sleeve pipe 8 chooses the stainless steel material for use, and the upper end is sealing connection with upper cover plate 2 welding, and the lower extreme just has cylinder stopper 22 sealing connection, and the installation of heating rod 9 is in heat conduction sleeve pipe 8, can solve not only the heating but also well sealed problem through heat conduction of heat conduction sleeve pipe 8.
A gap is reserved between the heat conduction sleeve 8 and the heating rod 9 to ensure that the heating rod 9 can be smoothly taken out after heating creep deformation, so that the heating rod 9 is convenient to replace even if burnt out. Structural design's improvement, including inserting heating rod 9 from cylinder body 1 top downwards, very big improvement heating rod 9 installation and change technology.
The utility model discloses an outside an organic whole of a heat dissipation section of thick bamboo 18 set up heat dissipation slat 21 can heat conduction fast and enlarge heat radiating area. The outer shapes of the radiating cylinder 18 and the radiating strip 21 are designed according to the internal volume and shape of the cylinder 1. The material is selected from aluminum alloy, and the aluminum alloy has the characteristics of quick heat dissipation, good processing technology and low cost.
When the heat dissipation assembly 13 is mounted on the heat conduction sleeve 8, the method of preheating the heat dissipation assembly 13 is adopted to enlarge the mounting aperture of the heat dissipation cylinder 18 due to thermal expansion, so that the heat dissipation assembly is easily mounted on the heat conduction sleeve 8. The radiating strips 21 have umbrella-shaped blade faces, and the interval between adjacent radiating strips 21 is proper, namely Al2O3The particles 12 can be smoothThe heat sink can be filled with the particles around the heat sink, and the particles around the heat sink can be uniformly heated.
In order to prevent the heat dissipation assembly 13 from sliding off the heat conduction sleeve 8 due to thermal expansion of the molecular sieve device after heating, the lower part of the heat dissipation assembly 13 is fixed by the limit nut 24 and the stop piece 27.
In order to solve the processing technology of the middle hole of the heat dissipation cylinder 18, the heat dissipation assembly 13 is cut into three sections, each section is blocked by a spacing piece 19, and is radially positioned by a round pin 20, so that the radial isotropy of each section of the heat dissipation strip plate 21 is ensured.
In addition, the cylinder block 1 is formed by independently providing Al2O3Feed port 4 and Al2O3And the discharge port 5 is provided with the sealing screw plug 25, so that compared with the existing molecular sieve, the manufacturing cost is reduced, and the sealing property of the molecular sieve is greatly improved.
The upper fixing sealing assembly 10 enables the locking taper sleeve 16 to be respectively matched with the fixing sleeve 14 and the heating rod 9 in a compression joint mode through screwing the compression nut 15, and therefore the heating rod 9 is firmly clamped.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (6)
1. A molecular sieve device for removing water vapor in sulfur hexafluoride gas comprises a vertically arranged cylindrical cylinder body, an upper cover plate and a lower cover plate are horizontally arranged at an upper port and a lower port of the cylinder body respectively, and Al is arranged at an eccentric position of the top of the upper cover plate2O3A feed inlet, and Al arranged at the lower part of the front side of the cylinder body2O3Discharge gate, cylinder body left side lower part are equipped with the gaseous import of sulfur hexafluoride, and cylinder body right side upper portion is equipped with the gaseous export of sulfur hexafluoride, its characterized in that: the lower surface of the upper cover plate is fixedly provided with a cylinder body concentric with the cylinder bodyThe wire heating device comprises a heat conduction sleeve, an upper cover plate, a heating rod, an upper fixing sealing assembly and a lower fixing sealing assembly, wherein the upper cover plate of the heat conduction sleeve is provided with a through hole corresponding to the heat conduction sleeve; a metal filter disc is arranged below the lower end of the heat conduction sleeve in the cylinder body, the metal filter disc is arranged in an inclined mode with a high back and a low front, a sulfur hexafluoride gas inlet is arranged below the metal filter disc, the lowest part of the front side of the metal filter disc is located with Al2O3The lowest part of the discharge port is flush, and Al is filled above the metal filter disc, below the upper cover plate and outside the heat conduction sleeve in the cylinder body2O3Particles, Al arranged on the outer circle of the heat conducting sleeve2O3A heat sink assembly in contact with the particles.
2. The molecular sieve device for removing water vapor from sulfur hexafluoride gas as claimed in claim 1, wherein: the upper fixed sealing component comprises a fixed sleeve, gland nut and locking taper sleeve, fixed cover lower part is installed in the through-hole, fixed cover excircle middle part an organic whole is equipped with the holding ring, the external diameter of holding ring is greater than the internal diameter of through-hole, holding ring excircle fixed connection is at the upper cover plate upper surface, fixed cover internal diameter is greater than the heating rod diameter, the heating rod is worn to establish in fixed cover, the outer lane on fixed cover upper portion is provided with the external screw thread, fixed cover upper portion inner circle and locking taper sleeve's outer lane are thick down thin conical structure, locking taper sleeve and gland nut all overlap on the heating rod, the outer lane and the cooperation of fixed cover upper portion inner circle of locking taper sleeve, gland nut's hole is big end down's step hole, gland nut's lower part and fixed cover upper portion threaded connection, gland nut's inner circle step and the upper end crimping cooperation of locking taper.
3. The molecular sieve device for removing water vapor from sulfur hexafluoride gas as claimed in claim 1 or 2, wherein: the heat dissipation assembly comprises at least two sections of heat dissipation cylinders, round holes which are sleeved on the outer circle of the heat conduction sleeve and fixed on the outer circle of the heat conduction sleeve are formed in the heat dissipation cylinders, a spacer sleeved on the outer circle of the heat conduction sleeve is arranged between every two adjacent heat dissipation cylinders, the adjacent two sections of heat dissipation cylinders are connected in a locating mode through round pins which penetrate through the spacer, and a plurality of heat dissipation battens of the integrated structure are arranged on the outer portion of each section of heat dissipation cylinder.
4. The molecular sieve device for removing water vapor from sulfur hexafluoride gas as claimed in claim 3, wherein: the heat conduction sleeve mouth is provided with the cylinder stopper that is used for spacing heating rod, and the cylinder stopper is as an organic whole with the welding of heat conduction sleeve pipe, and cylinder stopper lower part is equipped with the double-screw bolt with axial an organic whole, and the cover is equipped with the separation blade that is used for spacing heat dissipation section of thick bamboo on the double-screw bolt, and the spiro union has the stop nut with separation blade lower surface crimping complex on the double-screw bolt.
5. The molecular sieve device for removing water vapor from sulfur hexafluoride gas as claimed in claim 1, wherein: the upper cover plate is provided with a pressure gauge interface Al2O3Feed inlet and Al2O3The discharge ports are all provided with a sealing plug screw.
6. The molecular sieve device for removing water vapor from sulfur hexafluoride gas as claimed in claim 2, wherein: the upper cover plate is provided with an electric wire joint cover which covers the compression nut inside, the top of the electric wire joint cover is provided with an opening, and the upper end of the heating rod is connected with a lead which upwards extends out of the compression nut and the opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922134106.1U CN211936271U (en) | 2019-12-03 | 2019-12-03 | Molecular sieve device for removing water vapor in sulfur hexafluoride gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922134106.1U CN211936271U (en) | 2019-12-03 | 2019-12-03 | Molecular sieve device for removing water vapor in sulfur hexafluoride gas |
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| CN211936271U true CN211936271U (en) | 2020-11-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141686A (en) * | 2021-03-31 | 2021-07-20 | 电子科技大学 | Device for manufacturing large-area high-heat-flux-density equivalent heat source by using heating rod |
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2019
- 2019-12-03 CN CN201922134106.1U patent/CN211936271U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141686A (en) * | 2021-03-31 | 2021-07-20 | 电子科技大学 | Device for manufacturing large-area high-heat-flux-density equivalent heat source by using heating rod |
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