CN109630225A - A kind of energy saver and method based on heat distribution pipeline thermo-electric generation - Google Patents
A kind of energy saver and method based on heat distribution pipeline thermo-electric generation Download PDFInfo
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- CN109630225A CN109630225A CN201811514911.0A CN201811514911A CN109630225A CN 109630225 A CN109630225 A CN 109630225A CN 201811514911 A CN201811514911 A CN 201811514911A CN 109630225 A CN109630225 A CN 109630225A
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- distribution pipeline
- heat distribution
- heat
- air passage
- thermo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
- F01K27/02—Plants modified to use their waste heat, other than that of exhaust, e.g. engine-friction heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K25/00—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for
- F01K25/08—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours
- F01K25/10—Plants or engines characterised by use of special working fluids, not otherwise provided for; Plants operating in closed cycles and not otherwise provided for using special vapours the vapours being cold, e.g. ammonia, carbon dioxide, ether
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The present invention provides a kind of energy saver based on heat distribution pipeline thermo-electric generation, including heat distribution pipeline, receiving pipe, air passage, turbine, power generation mechanism, condenser pipe and compressor.It is arranged outside the heat distribution pipeline and accommodates pipe, freon is set between the receiving pipe and heat distribution pipeline, the air passage is set to the top for accommodating pipe, the turbine is arranged in rotation in the air passage, the turbine drives the power generation mechanism rotation to generate electricity, the air passage is connected to the condenser pipe, and the condenser pipe is connected to the compressor, and freon compression is transported to the receiving and managed by the compressor.Energy saver based on heat distribution pipeline thermo-electric generation is generated heat using heat distribution pipeline and the energy saver of itself and thermo-electric generation around, and the freon circulation that formation is constantly done work, which can make full use of, distributes waste heat, improves resource utilization.Power-economizing method provided by the invention based on heat distribution pipeline thermo-electric generation, is generated electricity using the waste heat that the heat distribution pipeline distributes, energy conservation and environmental protection.
Description
Technical field
The present invention relates to technical field of power generation more particularly to a kind of energy savers and side based on heat distribution pipeline thermo-electric generation
Method.
Background technique
Heat distribution pipeline leads to the confession of building consumer heat inlet from heat source from boiler room, direct combustion computer room, heat supply center grade
Heat pipeline.Modern city provided underground has criss-cross heat distribution pipeline network.
Water in reality in heat distribution pipeline outwardly distributes heat by heat transfer, radiation, this partial heat we do not have
There is good utilization, this results in the waste of heat, and the heat island in city can be aggravated in the environment of the energy dissipation of this part waste
Effect, still, if this partial heat energy can either be realized making full use of for resource using being converted into electric energy by us, other thermal energy
It is converted and can be avoided urban heat land effect.
Summary of the invention
In order to solve the above technical problems, the present invention provides and a kind of utilizes heat distribution pipeline fever and itself and thermo-electric generation around
Energy saver and method, distribute waste heat so as to make full use of, improve resource utilization.
The present invention provides a kind of energy saver based on heat distribution pipeline thermo-electric generation, including heat distribution pipeline, wherein
The bottom of the heat distribution pipeline is provided with bracket, and the bracket supports the heat distribution pipeline to be set to and accommodates in pipe,
Air passage is provided at the top of the receiving pipe, power generation mechanism, the shaft of the power generation mechanism is arranged in the top of the air passage
It is rotationally connected with the top of the air passage, extends to the setting rotary head of described shaft one end in the air passage, the rotary head
It is in inverted frustum cone structure towards described one end for accommodating pipe, multiple coaxial turbines, the generator is set in the rotary head
Structure further includes generator, the magnetisable material of setting fixed coil and rotation, the magnetisable material of the rotation in the generator
It is fixedly connected on the shaft；
One end of the top connection condenser pipe of the air passage, the S-shaped bending structure repeatedly of the condenser pipe, the condensation
Pipe is set in cooling cylinder, is respectively set inlet and outlet at the top of the two sides of the cooling cylinder, the condenser pipe it is another
One end is connected to the compressor, and the compressor is connected to the receiving by perfusion tube and manages；
Freon is placed between the receiving pipe and the heat distribution pipeline.
Preferably, the first heat insulation layer, the second heat insulation layer of the receiving pipe outer cladding are coated on the outside of the heat distribution pipeline.
Preferably, the bore of the air passage is bottom-up becomes smaller.
Preferably, annular groove is set in the shaft, and bearing is arranged in the top of the air passage, and the annular groove turns
It is dynamic to be connected to the bearing.
Preferably, control mechanism is set at the top of the heat distribution pipeline of air passage nozzle described in face.It ventilates for controlling
The size of road nozzle changes breathing area.
Preferably, the control mechanism includes movable plate, fixed plate, support ring, motor, spring, connecting line, spool and company
Connect film, junctional membrane is arranged between the adjacent movable plate in the fan-shaped structure of movable plate, and the fixed plate is in circular ring shape knot
Structure, the movable plate is radial to be slidably connected to the fixed plate, the gear of the corresponding movable plate of setting in the fixed plate
Piece, is arranged spring between the baffle and the movable plate, the bottom of the fixed plate is provided with support ring, in the support ring
Described in the output end of setting motor, circular hole of the output end of the motor among the fixed plate, and the motor is fixed
Connecting line is arranged between the spool and the movable plate in spool.
The present invention provides a kind of power-economizing method based on heat distribution pipeline thermo-electric generation, is being conducted heat according to the heat distribution pipeline
Cheng Zhong can distribute heat to surrounding, cause the local temperature close to the heat distribution pipeline high, the place far from the heat distribution pipeline
The low situation of temperature, the heat distributed using heat distribution pipeline are evaporated the freon in device, form air-flow, freon gas circulation
It crosses and pushes the turbine that power generation mechanism rotation is driven to generate electricity, freon air-flow continues to move to the low place of temperature, condensation
It at liquid, is pressed at heat distribution pipeline by compressor, to form the freon circulation for not stopping acting power generation.
Compared with the relevant technologies, the energy saver and method provided by the invention based on heat distribution pipeline thermo-electric generation has
It is following the utility model has the advantages that
The present invention provides a kind of energy saver and method based on heat distribution pipeline thermo-electric generation, is dissipated using the heat distribution pipeline
The waste heat of sending vaporizes the freon accommodated between pipe and the heat distribution pipeline, and freon gas stream passes through the ventilation
When road, the turbine is pushed to be rotated, and then the magnetisable material in generator is driven to rotate the variation progress to form magnetic flux
Power generation, can be generated electricity using the waste heat of the heat distribution pipeline, improve the utilization rate of resource, and thermal energy is converted into mechanical energy electricity
Can, advantageously reduce urban heat land effect；The rotary head cooperates at inverted frustum cone structure, the rotary head and the air passage,
So that the access of Freon gas narrows from the width, forms tapered channels and be conducive to the holding of gas velocity, to be further ensured that
Air-flow generates enough impacts to the subsequent turbine；The turbine setting, can make full use of the energy of flowing gas,
Improve the efficiency that energy is converted to electric energy, the S-shaped bending structure repeatedly of the condenser pipe, so that the freon in the condenser pipe
The condensing agent condensation that can be adequately condensed in case.
In addition, first heat insulation layer is arranged outside the heat distribution pipeline, is conducive to the heat preservation of water in the heat distribution pipeline, keeps away
Exempt from freon and draw big calorimetric from the heat distribution pipeline, and leads to the forfeiture of itself heat transmission function of the heat distribution pipeline, it is described
The up-narrow and down-wide structure of air passage preferably cooperates the rotary head to form gas tapered channels, to guarantee gas to the turbine
Impulse force, improve the utilization rate of energy；The control mechanism is used to control the size of air passage nozzle, changes breathing area tune
Control, to regulate and control generated output.
Detailed description of the invention
Fig. 1 is a kind of preferred embodiment of the energy saver and method provided by the invention based on heat distribution pipeline thermo-electric generation
Structural schematic diagram；
Fig. 2 is the structural schematic diagram that shaft shown in FIG. 1 is connect with air passage；
Fig. 3 is the schematic cross-sectional view of control mechanism shown in FIG. 1；
Fig. 4 is the overlooking structure diagram of control mechanism shown in Fig. 3.
Figure label: 1, heat distribution pipeline, 11, bracket, 12, control mechanism, 121, movable plate, 122, fixed plate, 123, branch
Pushing out ring, 124, motor, 125, spring, 126, connecting line, 127, spool, 128, junctional membrane, the 2, first heat insulation layer, 3, receiving pipe,
4, the second heat insulation layer, 5, turbine, 6, air passage, 61, bearing, 7, power generation mechanism, 71, generator, 72, shaft, 721, annular groove,
73, rotary head, 8, cooling cylinder, 81, condenser pipe, 9, compressor, 91, perfusion tube, the 812, first loop bar, 813, damping spring, 814,
Fixing bolt, the 815, second loop bar, 82, socket ring.
Specific embodiment
The invention will be further described with embodiment with reference to the accompanying drawing.
Fig. 1, Fig. 2, Fig. 3 and Fig. 4 are please referred to, wherein Fig. 1 is provided by the invention based on heat distribution pipeline temperature difference hair
A kind of structural schematic diagram of preferred embodiment of the energy saver and method of electricity；Fig. 2 is that shaft shown in FIG. 1 is connect with air passage
Structural schematic diagram；Fig. 3 is the schematic cross-sectional view of control mechanism shown in FIG. 1；Fig. 4 is control mechanism shown in Fig. 3
Overlooking structure diagram.
The present invention provides a kind of energy saver based on heat distribution pipeline thermo-electric generation, as shown in Figure 1, described be based on thermal pipe
The energy saver of road thermo-electric generation includes heat distribution pipeline 1, wherein
The bottom of the heat distribution pipeline 1 is provided with bracket 11, and the bracket 11 supports the heat distribution pipeline 1 to be set to receiving
In pipe 3, so that certain space is formed between the heat distribution pipeline 1 and the receiving pipe 3, the receiving pipe 3 and the heating power
Freon is placed between pipeline 1, the first heat insulation layer 2 is coated on the outside of the heat distribution pipeline 1, and first heat insulation layer 2 is polyurethane
The layer structure that foamed plastics is constituted, 3 second heat insulation layer of outer cladding 4 of receiving pipe, second heat insulation layer 4 is by nano-silica
The aerogel layer that SiClx aeroge is formed, first heat insulation layer 2 by heat source in the heat distribution pipeline 1 and the receiving pipe 3 every
From, avoid excessive heat in the heat distribution pipeline 1 from being absorbed by freon, and cause heat source temperature decline excessive, so that the heat
Hydraulic piping 1 loses the effect of transmitting heat, and the heat that second heat insulation layer 4 is reduced in the receiving pipe 3 outwardly scatters and disappears, mentions
The high freon absorbs heat ratio, to improve capacity usage ratio.
The top for accommodating pipe 3 is provided with air passage 6, and the air passage 6 is cylindrical in shape, and the bore of the air passage 6 is certainly
Lower to become smaller gradually upwards, power generation mechanism 7 is arranged in the top of the air passage 6, specifically, in conjunction with refering to fig. 1 and Fig. 2, it is described to lead to
Bearing 61 is arranged in the top shell of air flue 6, and annular groove 721 is arranged in the shaft 72, and the annular groove 721 is rotatablely connected
In the bearing 61, the setting rotary head 73 of 72 one end of the shaft in the air passage 6 is extended to, the top of the rotary head 73 is in
Cylinder, the bottom of the rotary head 73 are in inverted frustum cone structure, and multiple coaxial turbines 5 are arranged in the rotary head 73, for
The inclined degree of bottom-up 5 its blade of the turbine gradually increases, for the close of bottom-up 5 its blade of the turbine
Collection degree gradually increases, and the power generation mechanism 7 further includes generator 71, setting fixed coil and rotation in the generator 71
Magnetisable material, the magnetisable material of the rotation is fixedly connected on the shaft 72, and the bore of the air passage 6 is bottom-up gradually
Gradual change is small, and the bottom of the rotary head 73 is in inverted frustum cone structure, so that the channel cross-sectional area that Freon gas passes through is by becoming greatly
It is small, so that Freon gas generates the effect accelerated, offsets due to colliding the turbine 5 and Freon gas is made to lose kinetic energy,
So that the gas in the air passage 6 still keeps certain kinetic energy when being moved to top, to the whirlpool of the top
5 acting of wheel, the turbine 5 are arranged multiple areas increased by gas collisions, enable gas to the turbine 5 and described turn
Axis 72 generates bigger thrust, improves the efficiency that gas energy is converted into the turbine 5 and 72 mechanical energy of shaft, further
Raising energy into electrical power transformation efficiency.
One end of the top connection condenser pipe 81 of the air passage 6, the S-shaped bending structure repeatedly of condenser pipe 81, institute
It states condenser pipe 81 to be set in cooling cylinder 8, inlet and outlet is respectively set at the top of the two sides of the cooling cylinder 8, it is described
The other end of condenser pipe 81 is connected to the compressor 9, and the compressor 9 is connected to the receiving pipe 3 by perfusion tube 91, described cold
The solidifying S-shaped bending structure repeatedly of pipe is capable of increasing freon and condensing agent heat exchange in the cooling cylinder 8 in the condenser pipe 81
Area, improve the efficiency of freon condensation.
In conjunction with refering to fig. 1 and Fig. 3, in conjunction with refering to Fig. 3 and Fig. 4, the heat distribution pipeline 1 of 6 nozzle of air passage described in face
Control mechanism 12 is arranged in top, and the control mechanism 12 is used to control the size of 6 nozzle of air passage, changes breathing area, specifically
, the control mechanism 12 include movable plate 121, fixed plate 122, support ring 123, motor 124, spring 125, connecting line 126,
Junctional membrane is arranged between the adjacent movable plate 121 in spool 127 and junctional membrane 128, the fan-shaped structure of the movable plate 121
128, the fixed plate 122 is in cirque structure, and the movable plate 121 is radial to be slidably connected to the fixed plate 122, institute
The baffle that the corresponding movable plate 121 is set in fixed plate 122 is stated, spring is set between the baffle and the movable plate 121
125, the bottom of the fixed plate 122 is provided with support ring 123, and motor 124, the motor 124 is arranged in the support ring 123
Circular hole of the output end among the fixed plate 122, and the fixed spool 127 of output end of the motor 124 is described
Connecting line 126 is set between spool 127 and the movable plate 121, and the control mechanism 12 can effectively regulate and control the ventilation
The size of 6 opening gas flow area of road, becomes smaller when 6 mouthfuls of air passage and is even switched off, and the heat distribution pipeline 1 is managed with the receiving
Pressure becomes larger between 3, and the boiling point of freon is got higher, freon degree of saturation between the heat distribution pipeline 1 and the receiving pipe 3
Greatly, limitation freon further absorbs heat from the heat distribution pipeline 1, avoids the occurrence of 1 inner heat source of heat distribution pipeline and is absorbed largely
Heat and cause temperature decline excessive so that the heat distribution pipeline 1 loses heat transmission function.
The present invention also provides a kind of power-economizing methods based on heat distribution pipeline thermo-electric generation, are being passed according to the heat distribution pipeline 1
In thermal process, heat can be distributed to surrounding, cause the local temperature close to the heat distribution pipeline 1 high, far from the heat distribution pipeline 1
The low situation of local temperature,
Freon in device is evaporated using the heat that the heat distribution pipeline 1 distributes, and forms air-flow；
Freon gas stream is by pushing the turbine 5 that the rotation of power generation mechanism 7 is driven to generate electricity；
Freon air-flow continues to move to the low place of temperature, is condensed into liquid, is pressed at heat distribution pipeline 1 by compressor 9；
To form the freon circulation for not stopping acting power generation.
The present invention provides a kind of energy saver based on heat distribution pipeline thermo-electric generation, its working principles are as follows:
Freon in device is evaporated using the heat that the heat distribution pipeline 1 distributes, and forms air-flow；
Freon gas stream is by pushing the turbine 5 that the rotation of power generation mechanism 7 is driven to generate electricity；
Freon air-flow continues to move to the low place of temperature, is condensed into liquid, is pressed at heat distribution pipeline 1 by compressor 9,
As long as the vaporization that freon is reciprocal in the energy saver based on heat distribution pipeline thermo-electric generation described in the presence of heat does work, is then cold
Lime set.
The present invention provides a kind of energy saver based on heat distribution pipeline thermo-electric generation, is given out using the heat distribution pipeline 1
Waste heat, by it is described receiving pipe 3 and the heat distribution pipeline 1 between freon vaporize, freon gas stream pass through the air passage 6
When, push the turbine 5 to be rotated, and then the magnetisable material in generator 71 is driven to rotate the variation progress to form magnetic flux
Power generation, can be generated electricity using the waste heat of the heat distribution pipeline 1, improve the utilization rate of resource, and thermal energy is converted into mechanical energy electricity
Can, advantageously reduce urban heat land effect；The rotary head 73 is at inverted frustum cone structure, the rotary head 73 and the air passage 6
Cooperation forms the holding that tapered channels are conducive to gas velocity, thus further so that the access of Freon gas narrows from the width
Guarantee that air-flow generates enough impacts to the subsequent turbine 5；The turbine 5 is arranged, can make full use of flowing gas
Energy, improve energy and be converted to the efficiency of electric energy, the S-shaped bending structure repeatedly of condenser pipe 81, so that the condenser pipe
Freon in 81 can adequately be condensed the condensing agent in case 8 condensation.
In addition, first heat insulation layer 2 is arranged outside the heat distribution pipeline 1, be conducive to the guarantor of water in the heat distribution pipeline 1
Temperature avoids freon from drawing big calorimetric from the heat distribution pipeline 1, and leads to the funeral of itself heat transmission function of heat distribution pipeline 1
It loses, the up-narrow and down-wide structure of the air passage 6 preferably cooperates the rotary head 73 to form gas tapered channels, to guarantee gas
To the impulse force of the turbine 5, the utilization rate of energy is improved；The control mechanism 12 is used to control the size of 6 nozzle of air passage, changes
Become breathing area regulation, to regulate and control generated output.
It can make full use of heat distribution pipeline the present invention also provides a kind of power-economizing method based on heat distribution pipeline thermo-electric generation to dissipate
The heat of hair generates electricity, and waste heat is re-used, and economizes on resources, reduces tropical island effect.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (7)
1. a kind of energy saver based on heat distribution pipeline thermo-electric generation, which is characterized in that including heat distribution pipeline (1), wherein
The bottom of the heat distribution pipeline (1) is provided with bracket (11), and the bracket (11) supports the heat distribution pipeline (1) to be set to
It accommodates in pipe (3), is provided with air passage (6) at the top of the receiving pipe (3), generator is arranged in the top of the air passage (6)
The shaft (72) of structure (7), the power generation mechanism (7) is rotationally connected with the top of the air passage (6), extends to the air passage
(6) rotary head (73) are arranged in the shaft (72) one end in, and the rotary head (73) is towards described one end for accommodating pipe (3) in inversion
Frustum cone structure, multiple coaxial turbines (5) are set on the rotary head (73), the power generation mechanism (7) further includes generator
(71), the magnetisable material of fixed coil and rotation is set in the generator (71), and the magnetisable material of the rotation is fixed to be connected
It is connected to the shaft (72)；
One end of top connection condenser pipe (81) of the air passage (6), the S-shaped bending structure repeatedly of condenser pipe (81),
The condenser pipe (81) is set in cooling cylinder (8), and water inlet and water outlet is respectively set at the top of the two sides of the cooling cylinder (8)
Mouthful, the other end of the condenser pipe (81) is connected to the compressor (9), and the compressor (9) is connected to institute by perfusion tube (91)
State receiving pipe (3)；
Freon is placed between the receiving pipe (3) and the heat distribution pipeline (1).
2. the energy saver and method according to claim 1 based on heat distribution pipeline thermo-electric generation, which is characterized in that described
The first heat insulation layer (2) are coated on the outside of heat distribution pipeline (1), the second heat insulation layer of (3) outer cladding (4) are managed in the receiving.
3. the energy saver and method according to claim 1 based on heat distribution pipeline thermo-electric generation, which is characterized in that described
The bore of air passage (6) is bottom-up to become smaller.
4. the energy saver and method according to claim 1 based on heat distribution pipeline thermo-electric generation, which is characterized in that described
Annular groove (721) are set in shaft (72), bearing (61) are arranged in the top of the air passage (6), the annular groove (721)
It is rotationally connected with the bearing (61).
5. the energy saver and method according to claim 1 based on heat distribution pipeline thermo-electric generation, which is characterized in that face
Control mechanism (12) are set at the top of the heat distribution pipeline (1) of air passage (6) nozzle, the control mechanism (12) is for controlling
The size of air passage (6) nozzle processed changes breathing area.
6. the energy saver and method according to claim 5 based on heat distribution pipeline thermo-electric generation, which is characterized in that described
Control mechanism (12) includes movable plate (121), fixed plate (122), support ring (123), motor (124), spring (125), connection
Line (126), spool (127) and junctional membrane (128), the fan-shaped structure of the movable plate (121), the adjacent movable plate
(121) junctional membrane (128) are set between, the fixed plate (122) is in cirque structure, and the movable plate (121) is radial
It is slidably connected to the fixed plate (122), the baffle of the corresponding movable plate (121) is set on the fixed plate (122), it is described
Spring (125) are set between baffle and the movable plate (121), the bottom of the fixed plate (122) is provided with support ring
(123), motor (124) are set in the support ring (123), the output end of the motor (124) runs through the fixed plate (122)
Intermediate circular hole, and the fixed spool (127) of output end of the motor (124), the spool (127) and the movable plate
(121) connecting line (126) are set between.
7. a kind of power-economizing method based on heat distribution pipeline thermo-electric generation, which is characterized in that conducted heat according to the heat distribution pipeline (1)
In the process, heat can be distributed to surrounding, causes the local temperature close to the heat distribution pipeline (1) high, far from the heat distribution pipeline
(1) the low situation of local temperature,
Freon in device is evaporated using the heat that heat distribution pipeline distributes, and forms air-flow；
Freon gas stream is by pushing the turbine (5) that power generation mechanism (7) rotation is driven to generate electricity；
Freon air-flow continues to move to the low place of temperature, is condensed into liquid, is pressed at heat distribution pipeline (1) by compressor (9)；
To form the freon circulation for not stopping acting power generation, is generated electricity, saved using the waste heat that the heat distribution pipeline (1) distributes
It can environmental protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811514911.0A CN109630225B (en) | 2018-12-12 | 2018-12-12 | Energy-saving device and method based on thermal pipeline temperature difference power generation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811514911.0A CN109630225B (en) | 2018-12-12 | 2018-12-12 | Energy-saving device and method based on thermal pipeline temperature difference power generation |
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| Publication Number | Publication Date |
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| CN109630225A true CN109630225A (en) | 2019-04-16 |
| CN109630225B CN109630225B (en) | 2021-04-30 |
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| Publication number | Publication date |
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| CN109630225B (en) | 2021-04-30 |
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