CN109356668B - Anti-blocking steam nozzle for steam turbine and working method thereof - Google Patents
Anti-blocking steam nozzle for steam turbine and working method thereof Download PDFInfo
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- CN109356668B CN109356668B CN201811217989.6A CN201811217989A CN109356668B CN 109356668 B CN109356668 B CN 109356668B CN 201811217989 A CN201811217989 A CN 201811217989A CN 109356668 B CN109356668 B CN 109356668B
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- pipeline
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- pipe
- air injection
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D9/00—Stators
- F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D17/00—Regulating or controlling by varying flow
- F01D17/10—Final actuators
- F01D17/12—Final actuators arranged in stator parts
- F01D17/14—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits
- F01D17/141—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path
- F01D17/145—Final actuators arranged in stator parts varying effective cross-sectional area of nozzles or guide conduits by means of shiftable members or valves obturating part of the flow path by means of valves, e.g. for steam turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/002—Cleaning of turbomachines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention relates to an anti-blocking steam nozzle for a steam turbine and a working method thereof, and belongs to the technical field of related steam turbines. In order to solve the problems that the prior anti-blocking steam turbine steam nozzle is easy to rust, the generated impurities are easy to block, the disassembly and the cleaning are inconvenient, and the liquid leakage is easy to occur due to the influence of thermal expansion and cold contraction. The invention comprises a first pipeline and a second pipeline, wherein the outer side of the first pipeline is tightly attached to an outer pipe fitting, the upper end of the first pipeline is fixedly provided with a flange, the outer side of the lower end of an air inlet pipe is provided with a spring, the lower end of the air inlet pipe is connected with a first air injection disk, a first filter plate and a second filter plate are sequentially arranged below the first air injection disk, the lower end of the inner part of the first pipeline is provided with a connecting block, the second pipeline is fixedly arranged at the lower end of an installation pipe, and the outer side of a sealing pad is provided with a salient point. The impurity removing and filtering device is arranged in the heat insulating device, so that the heat insulating device is not easy to block, convenient to detach and clean, and not easy to be influenced by expansion caused by heat and contraction caused by cold, so that liquid leakage is not easy to occur.
Description
Technical Field
The invention relates to the technical field of steam turbines, in particular to an anti-blocking steam nozzle for a steam turbine and a working method thereof.
Background
The steam turbine is used for providing power for equipment such as a generator, a compressor, a pump and the like, and can be applied to a power plant, a chemical plant, a sugar refinery, a textile mill and the like, the interior of the steam turbine generally comprises a steam generator which changes water into steam through heating, the steam turbine is used for converting energy contained in the steam into kinetic energy to drive various equipment, and the steam turbine is internally provided with stationary blades on a cylinder body and moving blades on a rotor.
The steam nozzle for the steam turbine is characterized in that a plurality of valves are required to be installed at the air inlet of the steam turbine to control steam entering the steam turbine, the interior of the steam nozzle is easy to rust, produced impurities are easy to block the device, the cleaning is inconvenient to detach, and liquid leakage is easy to influence due to expansion caused by heat and contraction caused by cold, so that the steam nozzle for the steam turbine is required to be prevented from being blocked, and the problems are solved.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an anti-blocking steam nozzle for a steam turbine and a working method thereof, so as to solve the problems that the interior of the existing anti-blocking steam nozzle for the steam turbine provided in the prior art is easy to rust, the generated impurities are easy to block a device, the disassembly and cleaning are inconvenient, and the liquid leakage is easily caused by the influence of thermal expansion and cold contraction.
The invention solves the problems by adopting the following technical scheme: the utility model provides a prevent steam turbine of jam steam nozzle, includes first pipeline and second pipeline, its characterized in that: the outer side of the first pipeline is closely attached with an outer pipe fitting, the inside of the outer pipe fitting is provided with a heat preservation pipe in a penetrating way at equal intervals, the upper end of the first pipeline is fixedly provided with a flange, the middle part of the flange is provided with an air inlet pipe in a penetrating way, the outer side of the lower end of the air inlet pipe is provided with a spring, the upper end of the spring is welded on the lower surface of the flange, the lower end of the air inlet pipe is connected with a first air injection disk, the outer edge of the first air injection disk is contacted with a clamping block, the clamping block is fixed on the inner surface of the first pipeline, the lower part of the first air injection disk is provided with a first filter plate, and the below of first filter is provided with the second filter, the inside at first pipeline is all installed to first filter and second filter, the inside lower extreme of first pipeline is fixed to be provided with the connecting block, and the central authorities of connecting block closely laminate and be provided with the installation tube, second pipeline fixed connection is at the lower extreme of installation tube, and the upper surface of second pipeline pastes and be connected with sealed the pad, sealed outside of pad is provided with the bump, and the fixed upper surface that sets up at the second pipeline of bump, the inboard swing joint of lower extreme of second pipeline has the cardan shaft, and the lower extreme fixedly connected with second jet-propelled dish of cardan shaft.
Preferably, the heat preservation pipe is provided with 4 groups at equidistant inside the outer pipe, and the heat preservation pipe is annular tubular structure.
Preferably, the flange is connected with the first air injection disk through a spring, the first air injection disk is of a telescopic structure in the first pipeline, the lower surface of the first air injection disk is of a porous structure, and the first air injection disk and the air inlet pipe form an inverted T-shaped structure.
Preferably, the first filter plate and the second filter plate are of a detachable structure in the first pipeline, and the mesh size of the first filter plate is larger than that of the second filter plate.
Preferably, the second pipeline and the installation pipe are of an integrated structure, the second pipeline is connected with the first pipeline through the installation pipe and the connecting block in a threaded mode, the second pipeline is connected with the first pipeline clamping groove through the convex point, and the upper end face of the connecting block is of an inclined face structure.
Preferably, the second air injection disc is in a rotary structure at the lower end of the second pipeline, and the second air injection disc is in a funnel-shaped structure.
The working method of the anti-clogging steam nozzle for the steam turbine comprises the following steps: firstly, steam is transmitted through an air inlet pipe, when a large amount of steam flows into the first air injection disk 7 through the air inlet pipe, the steam is evenly sprayed out through the lower surface of the first air injection disk, and the spring stretches to buffer the spraying force in the first air injection disk 7, so that the steam is evenly and forcefully sprayed in a first pipeline; then, the steam is filtered through the first filter plate and the second filter plate, so that impurities are prevented from being brought into the installation pipe and the second pipeline to cause blockage and cannot be used; then steam flows to the inside of the installation pipe, flows out through the second pipeline, then rotates the second jet disc through the action of the universal shaft, adjusts the jet angle of the second jet disc, and therefore accuracy and effect of the steam nozzle are improved.
The clearance that prevents using of steam turbine steam nozzle of jam, because the temperature can rise fast when letting in steam, so can be heated expansion and shrinkage's influence and make steam nozzle's inside produce the water droplet when the transmission stops, with the inside multiunit insulating tube 3 switch-on power of outer tube spare, keep warm the inside of first pipeline through the effect that generates heat, avoid the rapid change of temperature, if still produce the water droplet, the water droplet condenses in the inner wall of first pipeline, and fall along the inner wall, flow the inside of installation pipe through the upper end inclined plane effect of connecting block, and because connect closely through the effect of sealing gasket and bump between second pipeline and the first pipeline, can not cause revealing of liquid.
If the steam nozzle for the steam turbine of preventing blockking up has produced a large amount of rust because of long-time use, opens the flange, takes out first jet disc through the income trachea, dismantles first filter and second filter from first pipeline again in proper order, then clears up the inside of steam nozzle, and rethread rotatory second pipeline makes installation pipe and connecting block separation to wash the inside of first pipeline.
Compared with the prior art, the invention has the following advantages and effects: the anti-blocking steam nozzle for the steam turbine is provided with the impurity removal filtering device, is not easy to block and convenient to detach and clean, and is not easy to be influenced by expansion caused by heat and contraction caused by cold so as to generate leakage of liquid;
the heat-insulating pipe is arranged on the outer side of the first pipeline, the outer pipe is tightly wrapped, and the heat-insulating pipes are arranged in the outer pipe at equal intervals in a penetrating manner, so that the temperature in the first pipeline can be conveniently kept by controlling the temperature of the heat-insulating pipes, and water leakage caused by water drops generated in the device due to expansion caused by heat and contraction caused by cold is prevented;
the device is provided with the first filter plate and the second filter plate, and the first filter plate and the second filter plate are sequentially arranged in the first pipeline, so that steam is conveniently filtered, blockage caused by long-time use is prevented, water drops generated by the device are easy to rust, rust iron slag is collected through the first filter plate and the second filter plate, and blockage is avoided;
the device is provided with the connecting blocks, the mounting pipes, the sealing gaskets and the salient points, and the device is conveniently disassembled, washed and assembled through the functions of the connecting blocks and the mounting pipes, so that the interior is conveniently and quickly cleaned, the use efficiency is improved, the tightness of the connection between the first pipeline and the second pipeline can be improved through the functions of the sealing gaskets and the salient points, and water leakage is prevented;
the invention is provided with the universal shaft and the second air injection disk, and the rotation angle of the second air injection disk is conveniently realized through the action of the universal shaft, so that the injection angle can be adjusted, and the second air injection disk is designed into a funnel shape, so that the concentrated injection force is convenient.
Drawings
Fig. 1 is a schematic cross-sectional view of a front view of an embodiment of the present invention.
Fig. 2 is a schematic view of the structure of the upper surface of the second pipe according to the embodiment of the present invention.
Fig. 3 is an enlarged schematic view of the structure at a in fig. 1.
In the figure: 1. a first pipe; 2. an outer tube; 3. a heat preservation pipe; 4. a flange; 5. an air inlet pipe; 6. a spring; 7. a first jet plate; 8. clamping blocks; 9. a first filter plate; 10. a second filter plate; 11. a connecting block; 12. installing a pipe; 13. a second pipe; 14. a sealing gasket; 15. a bump; 16. a universal shaft; 17. and a second jet plate.
Detailed Description
The present invention will be described in further detail by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and not limited to the following examples.
Examples.
Referring to fig. 1 to 3, a steam nozzle for a steam turbine for preventing clogging, comprising a first pipe 1 and a second pipe 13, characterized in that: the outside of first pipeline 1 is closely laminated and is provided with outer pipe fitting 2, and the inside equidistant penetration of outer pipe fitting 2 is provided with insulating tube 3, the upper end fixed mounting of first pipeline 1 has flange 4, and the middle part of flange 4 runs through and is provided with into trachea 5, the lower extreme outside of income trachea 5 is provided with spring 6, and the upper end welding of spring 6 is at the lower surface of flange 4, the lower extreme of income trachea 5 is connected with first jet-propelled dish 7, and the outward flange and the clamp splice 8 contact of first jet-propelled dish 7, and the clamp splice 8 is fixed at the internal surface of first pipeline 1, the below of first jet-propelled dish 7 is provided with first filter 9, and the below of first filter 9 is provided with second filter 10, the inside at first pipeline 1 is all installed to first filter 9 and second filter 10, the inside lower extreme fixedly provided with connecting block 11 of first pipeline 1, and the central authorities of connecting block 11 are closely laminated and are provided with install tube 12, second pipeline 13 fixedly connected at the lower extreme of installing tube 12, and the upper surface paste of second pipeline 13 is connected with sealed pad 14, sealed pad 14 is provided with the universal joint 16 on the outside of second pipeline 13, the inside of second pipeline 13 is provided with the universal joint shaft 16, the joint is provided with the second universal joint 16.
Referring to fig. 1, the insulating pipes 3 are provided with 4 groups at equal intervals inside the outer pipe fitting 2, and the insulating pipes 3 are in an annular tubular structure. The temperature inside the first pipeline 1 is conveniently kept by controlling the temperature of the heat preservation pipe 3, and water leakage caused by water drops generated inside the device due to expansion caused by heat and contraction caused by cold is prevented. The flange 4 is connected with the first air injection disk 7 through the spring 6, the first air injection disk 7 is of a telescopic structure in the first pipeline 1, the lower surface of the first air injection disk 7 is of a porous structure, and the first air injection disk 7 and the air inlet pipe 5 form an inverted T-shaped structure. The expansion and contraction of the springs 6 facilitate the buffering of the spraying force of the steam, the stability of the first air spraying disc 7 is improved, and meanwhile, the steam passes through the first filter plate 9 and the second filter plate 10 more comprehensively and uniformly.
Referring to fig. 1, the first filter plate 9 and the second filter plate 10 are both of a detachable structure inside the first duct 1, and the mesh size of the first filter plate 9 is larger than that of the second filter plate 10. The steam is conveniently filtered, the blockage caused by long-time use is prevented, water drops generated by the device are easy to rust, rust slag is collected through the first filter plate 9 and the second filter plate 10, and the blockage is avoided. Referring to fig. 1-2, the second pipe 13 and the mounting pipe 12 are in an integrated structure, the second pipe 13 is in threaded connection with the connecting block 11 through the mounting pipe 12 so as to be fixed with the first pipe 1, the second pipe 13 is connected with the clamping groove of the first pipe 1 through the protruding points 15, and the upper end face of the connecting block 11 is in an inclined face structure. The slope through the connection block 11 facilitates rapid flow to the inside of the installation tube 12 through the slope when water drops are generated, and the sealability of the device is increased through the gasket 14 and the bump 15.
Referring to fig. 1, the second air injection disk 17 has a rotary structure at the lower end of the second duct 13, and the second air injection disk 17 has a funnel-shaped structure. The angle of the second jet disc 17 is conveniently adjusted, and the jet force is conveniently increased through the funnel-shaped structure.
The working method of the anti-clogging steam nozzle for the steam turbine comprises the following steps: firstly, steam is transmitted through the air inlet pipe 5, when a large amount of steam flows into the first air injection disk 7 through the air inlet pipe 5, the steam is evenly sprayed out through the lower surface of the first air injection disk 7, and the spring 6 stretches to buffer the spraying force in the first air injection disk 7, so that the steam is evenly and forcefully sprayed in the first pipeline 1; then the steam is filtered through the first filter plate 9 and the second filter plate 10, so that impurities are prevented from being brought into the installation pipe 12 and the second pipeline 13 to cause blockage and cannot be used; then, the steam flows into the installation pipe 12 and flows out through the second pipeline 13, and then the second jet disk 17 is rotated under the action of the universal shaft 16, so that the jet angle of the second jet disk 17 is adjusted, and the accuracy and effect of the steam nozzle are improved.
The clearance that prevents using of steam turbine steam nozzle of jam, because the temperature can rise fast when letting in steam, so can be heated expansion and shrinkage's influence and make steam nozzle's inside produce the water droplet when the transmission stops, put through the inside multiunit insulating tube 3 of outer tube 2 power, keep warm first pipeline 1's inside through the effect that generates heat, avoid the rapid change of temperature, if still produce the water droplet, the water droplet condenses in first pipeline 1's inner wall, and fall along the inner wall, flow the inside of installation pipe 12 through the upper end inclined plane effect of connecting block 11, and because connect closely through the effect of sealing gasket 14 and bump 15 between second pipeline 13 and the first pipeline 1, can not cause the leakage of liquid.
If the anti-clogging steam nozzle for a steam turbine generates a large amount of rust due to long-term use, the flange 4 is opened, the first jet disk 7 is taken out through the air inlet pipe 5, the first filter plate 9 and the second filter plate 10 are detached from the first pipeline 1 in sequence, then the inside of the steam nozzle is cleaned, and the mounting pipe 12 is separated from the connecting block 11 by rotating the second pipeline 13, so that the inside of the first pipeline 1 is cleaned. The above-described series of operations of the steam nozzle for a steam turbine to prevent clogging is completed, and what is not described in detail in the present specification belongs to the prior art known to those skilled in the art.
Standard parts used in the invention can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the details are not described.
Although the present invention is described with reference to the above embodiments, it should be understood that the invention is not limited to the embodiments described above, but is capable of modification and variation without departing from the spirit and scope of the present invention.
Claims (9)
1. Anti-clogging steam nozzle for a steam turbine, comprising a first pipeline (1) and a second pipeline (13), characterized in that: the utility model discloses a sealing device for the heat insulation pipe of the air conditioner, which is characterized in that an outer pipe fitting (2) is arranged on the outer side of a first pipeline (1) in a close fit manner, the inner part of the outer pipe fitting (2) is uniformly penetrated with a heat insulation pipe (3), a flange (4) is fixedly arranged at the upper end of the first pipeline (1), an air inlet pipe (5) is arranged in the middle of the flange (4), a spring (6) is arranged on the outer side of the lower end of the air inlet pipe (5), the upper end of the spring (6) is welded on the lower surface of the flange (4), a first air injection disc (7) is connected with the lower end of the air inlet pipe (5), the outer edge of the first air injection disc (7) is in contact with a clamping block (8), the clamping block (8) is fixed on the inner surface of the first pipeline (1), a first filter plate (9) is arranged below the first air injection disc (7), a second filter plate (10) is arranged below the first filter plate (9), both the first filter plate (9) and the second filter plate (10) are arranged inside the first pipeline (1), the inner part of the first pipeline (1) is fixedly connected with a connecting block (12), the second pipeline (13) is fixedly connected with the connecting block (13), the outside of sealed pad (14) is provided with bump (15), and bump (15) fixed setting is at the upper surface of second pipeline (13), the inboard swing joint of lower extreme of second pipeline (13) has cardan shaft (16), and the lower extreme fixedly connected with second jet disc (17) of cardan shaft (16).
2. The anti-clogging steam nozzle for a steam turbine according to claim 1, wherein: the heat preservation pipe (3) is provided with 4 groups at equal intervals in the outer pipe (2), and the heat preservation pipe (3) is of an annular tubular structure.
3. The anti-clogging steam nozzle for a steam turbine according to claim 1, wherein: the flange (4) is connected with the first air injection disc (7) through the spring (6), the first air injection disc (7) is of a telescopic structure in the first pipeline (1), the lower surface of the first air injection disc (7) is of a porous structure, and the first air injection disc (7) and the air inlet pipe (5) form an inverted T-shaped structure.
4. The anti-clogging steam nozzle for a steam turbine according to claim 1, wherein: the first filter plate (9) and the second filter plate (10) are of a detachable structure in the first pipeline (1), and the mesh size of the first filter plate (9) is larger than that of the second filter plate (10).
5. The anti-clogging steam nozzle for a steam turbine according to claim 1, wherein: the second pipeline (13) and the mounting pipe (12) are of an integrated structure, the second pipeline (13) is in threaded connection with the connecting block (11) through the mounting pipe (12) so as to be fixed with the first pipeline (1), the second pipeline (13) is connected with the clamping groove of the first pipeline (1) through the convex points (15), and the upper end face of the connecting block (11) is of an inclined surface structure.
6. The anti-clogging steam nozzle for a steam turbine according to claim 1, wherein: the second air injection disc (17) is in a rotary structure at the lower end of the second pipeline (13), and the second air injection disc (17) is in a funnel-shaped structure.
7. A method of operating an anti-clogging steam turbine steam nozzle as claimed in any one of claims 1 to 6, wherein: the working method comprises the following steps: firstly, steam is transmitted through the air inlet pipe (5), when a large amount of steam flows into the first air injection disk (7) through the air inlet pipe (5), the steam is evenly sprayed out through the lower surface of the first air injection disk (7), and the spring (6) stretches to buffer the spraying force in the first air injection disk (7), so that the steam is evenly and forcefully sprayed in the first pipeline (1); then, the steam is filtered through the first filter plate (9) and the second filter plate (10), so that impurities are prevented from being brought into the installation pipe (12) and the second pipeline (13) to cause blockage and cannot be used; then the steam flows into the mounting pipe (12), flows out through the second pipeline (13), then rotates the second jet disc (17) under the action of the universal shaft (16), and adjusts the jet angle of the second jet disc (17), so that the accuracy and effect of the steam nozzle are improved.
8. The method of operating an anti-clogging steam turbine steam nozzle as set forth in claim 7, wherein: the gap that prevents steam turbine that blocks up uses, because the temperature can rise fast when letting in steam, so can be heated expansion and shrinkage's influence and make steam nozzle's inside produce the water droplet when the transmission stops, put through the inside multiunit insulating tube 3 of outer tube (2) power, keep warm the inside of first pipeline (1) through the effect that generates heat, avoid the quick change of temperature, if still produce the water droplet, the water droplet condenses in the inner wall of first pipeline (1) to fall along the inner wall, flow the inside of installation pipe (12) through the upper end inclined plane effect of connecting block (11), and be closely through the effect connection of sealed pad (14) and bump (15) between second pipeline (13) and first pipeline (1), can not cause the leakage of liquid.
9. The method of operating an anti-clogging steam turbine steam nozzle as set forth in claim 7, wherein: if the steam nozzle for the steam turbine preventing blockage generates a large amount of rust due to long-time use, the flange (4) is opened, the first air injection disc (7) is taken out through the air inlet pipe (5), the first filter plate (9) and the second filter plate (10) are detached from the first pipeline (1) in sequence, then the inside of the steam nozzle is cleaned, and the installation pipe (12) is separated from the connecting block (11) by rotating the second pipeline (13), so that the inside of the first pipeline (1) is cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811217989.6A CN109356668B (en) | 2018-10-18 | 2018-10-18 | Anti-blocking steam nozzle for steam turbine and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811217989.6A CN109356668B (en) | 2018-10-18 | 2018-10-18 | Anti-blocking steam nozzle for steam turbine and working method thereof |
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| Publication Number | Publication Date |
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| CN109356668A CN109356668A (en) | 2019-02-19 |
| CN109356668B true CN109356668B (en) | 2023-06-23 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204806358U (en) * | 2015-07-10 | 2015-11-25 | 何启烽 | Steam generator |
| CN204984499U (en) * | 2015-08-31 | 2016-01-20 | 中冶南方工程技术有限公司 | Saturated steam turbine |
| CN206234800U (en) * | 2016-10-20 | 2017-06-09 | 万红丽 | A kind of steam boiler of plastic shell |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9618196B2 (en) * | 2015-01-08 | 2017-04-11 | Dongguan Pheaton Electronic Technology Co., Ltd. | Steam generator |
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2018
- 2018-10-18 CN CN201811217989.6A patent/CN109356668B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204806358U (en) * | 2015-07-10 | 2015-11-25 | 何启烽 | Steam generator |
| CN204984499U (en) * | 2015-08-31 | 2016-01-20 | 中冶南方工程技术有限公司 | Saturated steam turbine |
| CN206234800U (en) * | 2016-10-20 | 2017-06-09 | 万红丽 | A kind of steam boiler of plastic shell |
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| CN109356668A (en) | 2019-02-19 |
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