CN110220327A - A kind of new energy modified earth source heat pump unit - Google Patents
A kind of new energy modified earth source heat pump unit Download PDFInfo
- Publication number
- CN110220327A CN110220327A CN201910500418.1A CN201910500418A CN110220327A CN 110220327 A CN110220327 A CN 110220327A CN 201910500418 A CN201910500418 A CN 201910500418A CN 110220327 A CN110220327 A CN 110220327A
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- China
- Prior art keywords
- heat
- thermal
- shaft
- pump unit
- conducting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000009825 accumulation Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 36
- 239000011324 bead Substances 0.000 claims description 10
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000000696 magnetic material Substances 0.000 claims description 4
- 239000003350 kerosene Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract 1
- 230000035508 accumulation Effects 0.000 description 11
- 108010066057 cabin-1 Proteins 0.000 description 7
- 239000002689 soil Substances 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a kind of new energy modified earth source heat pump units, including being mounted on the heat pump unit ontology of the thermal-arrest cabin and installation of subsurface on the ground, heat exchanger plates are fixedly installed in the thermal-arrest cabin, the heat pump unit ontology passes through circulation inlet pipe, circulation outlet pipe is connect with heat exchanger plates and cycle heat exchange, it is equipped with shaft vertically at center in the thermal-arrest cabin, the upper end of the shaft is rotatably connected on the inner roof wall in thermal-arrest cabin, it is circumferentially equidistantly set there are three heat accumulation mechanism in the inner bottom wall in the thermal-arrest cabin along it, the heat-conducting plate for conducting heat between heat accumulation mechanism and heat exchanger plates is fixedly connected on the side wall of the shaft, the shaft be equipped with for drive shaft determine angular turn from control mechanism.The present invention provides thermal energy by multiple heat accumulation mechanisms in turn, and then guarantees the heat supply of the stable circulation in finite region, and realization Self-controlling-brake is made, and controls without human intervention, using more convenient, efficient.
Description
Technical field
The present invention relates to geothermal energy resources technical field more particularly to a kind of new energy modified earth source heat pump units.
Background technique
Currently, in the case where energy supply is nervous and greenhouse effects are on the rise, Renewable Energy Development utilization technology
It is extremely urgent.Especially in energy for building field, the utilization of new energy be even more obtain extensive concern, such as solar energy, wind energy,
The utilization of thermal energy, wherein wind energy, solar energy using more mature, the utilization of geothermal energy is not mature enough.
There are certain drawbacks in existing earth source heat pump unit, pipe laying is directly embedded in by existing heat pump unit when in use
Heat absorption in soil is passed to heat pump machine by underground, but the thermal energy in a panel region stored by soil is limited, and thermal energy passes
After having passed, soil needs to carry out again the accumulation of energy of a period of time, and since the thermal energy of unit time absorbable savings is limited, accumulation of energy
Time is longer, and the thermal energy of the supply of unit time is more when heat supply, and heat supply is easy to appear tomography, in limited soil region
Interior, thermal energy transmitting is insufficient, influences the energy use efficiency and heat stability of entire heat pump unit.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of new energy modified proposed
Source heat pump unit.
To achieve the goals above, present invention employs following technical solutions:
A kind of new energy modified earth source heat pump unit, including being mounted on the thermal-arrest cabin of subsurface and installing on the ground
Heat pump unit ontology, is fixedly installed with heat exchanger plates in the thermal-arrest cabin, the heat pump unit ontology by circulation inlet pipe, recycle
Pipe is connect with heat exchanger plates and cycle heat exchange, is equipped with shaft in the thermal-arrest cabin at center vertically, and the upper end of the shaft, which rotates, to be connected
It connects on the inner roof wall in thermal-arrest cabin, is circumferentially equidistantly set there are three heat accumulation mechanism in the inner bottom wall in the thermal-arrest cabin along it, it is described
The heat-conducting plate for conducting heat between heat accumulation mechanism and heat exchanger plates is fixedly connected on the side wall of shaft, the shaft is equipped with
For drive shaft determine angular turn from control mechanism.
Preferably, the heat accumulation mechanism includes the heat storing plate being fixedly mounted in the inner bottom wall of thermal-arrest cabin, the heat storing plate
Lower end is fixedly connected with multiple thermally conductive sheets, and multiple and thermally conductive sheet position is fixedly connected on the bottom wall in the thermal-arrest cabin and is corresponded
Heat-absorbing shield, the thermally conductive sheet is located in heat-absorbing shield, be filled with heat-conducting liquid in the heat-absorbing shield, up and down the two of the heat-conducting plate
End face contacts realization heat exchange with heat exchanger plates, heat storing plate respectively.
Preferably, it is described from control mechanism include the heat transfer block being fixedly connected on shaft side wall, the heat transfer block with lead
The direction of hot plate is consistent, and the side of the multiple heat storing plate towards shafts is fixedly connected to heat-conducting block, the heat-conducting block and storage
Hot plate mutually conducts heat and synthermal, and one end of heat transfer block and heat-conducting block transmission of heat by contact, and the sliding chamber of liquid storage, institute are equipped in the shaft
It is sliding intracavitary filled with heat expansion liquid to state liquid storage, the other end of the heat transfer block runs through the side wall of shaft and contacts with heat expansion liquid,
The cunning of liquid out is intracavitary to slidably connect sliding plug, and the lower end of the sliding plug is rotatably connected to threaded rod, and the liquid storage slides the interior of chamber
Positive stop bead is fixedly connected on wall, and positive stop bead is slidably connected in the thread groove on threaded rod, the lower end of the threaded rod is solid
Surely it is socketed with unilateral bearing, disc spring is fixedly connected in the collar wall of the unilateral bearing, the other end of the disc spring is fixed to be connected
It connects in the inner bottom wall in thermal-arrest cabin, permanent magnets is fixedly connected on the heat transfer block, the heat-conducting block is made of magnetic material.
Preferably, the heat expansion liquid is kerosene.
Preferably, the heat-conducting liquid filled in the heat-absorbing shield is propylene glycol.
Beneficial effects of the present invention:
By the way that multiple heat accumulation mechanisms are arranged, and heat-conducting plate is set, so that the thermal energy on heat storing plate is transferred to by heat-conducting plate
On heat exchanger plates, hot plate can be exchanged and improve thermal energy, and then provide thermal energy for heat pump unit ontology, can be realized in a panel region
Thermal energy is provided in turn by multiple heat accumulation mechanisms, and then guarantees stable thermal energy output.
By being arranged from control mechanism, when the thermal energy on the heat storing plate of a stored energy mechanism is constantly transferred to by heat-conducting plate
When on heat exchanger plates, so that temperature constantly reduces on the heat storing plate, since heat transfer block mutually conducts heat with heat-conducting block, thermal expansion
The temperature of liquid constantly reduces, and as the temperature of heat expansion liquid reduces, volume also reduces therewith, so that sliding plug slides up
It is dynamic, it drives threaded rod to move up, due to the position-limiting action of positive stop bead, that is, may make threaded rod to rotate, and then pass through one-way shaft
The single-direction transmission held drives disc spring spiral energetically, and disc spring provides reaction force to threaded rod, when the heat storing plate sufficiently passes out heat
When energy temperature minimizes, i.e., when the reaction force that disc spring provides breaks through the attraction between permanent magnets and heat-conducting block, disc spring is put
Strength drives threaded rod rotation by unilateral bearing, since the limit of the incompressible characteristic of the liquid of heat expansion liquid and positive stop bead is made
With, and then shaft rotation is driven, so that permanent magnets and next heat-conducting block attract, while heat-conducting plate turns to next heat storing plate
Upper end continues to transmit the thermal energy on the heat storing plate, while the heat storing plate of upper one abundant exoergic reuptakes soil thermal energy
Carry out energy storage, realize in a heat storing plate while thermal energy is provided, a upper heat storing plate storage thermal energy, and then reality now with
The heat supply of stable circulation in region is limited, and is realized from control.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of new energy modified earth source heat pump unit proposed by the present invention；
Fig. 2 be a kind of heat storing plate of new energy modified earth source heat pump unit proposed by the present invention, heat-conducting block, heat transfer block and
The structural schematic diagram of shaft；
Fig. 3 is a kind of structural representation from control mechanism of new energy modified earth source heat pump unit proposed by the present invention
Figure.
In figure: 1 thermal-arrest cabin, 2 circulation inlet pipes, 3 heat pump unit ontologies, 4 circulation outlet pipes, 5 heat exchanger plates, 6 heat-conducting plates, 7 heat accumulations
Plate, 8 heat-absorbing shields, 9 thermally conductive sheets, 10 shafts, 11 heat-conducting blocks, 12 heat transfer blocks, 13 heat expansion liquids, 14 sliding plugs, 15 positive stop beads, 16 screw threads
Bar, 17 unilateral bearings, 18 disc springs, 19 permanent magnets.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-3, a kind of new energy modified earth source heat pump unit, thermal-arrest cabin 1 and peace including being mounted on subsurface
Dress heat pump unit ontology 3 on the ground, is fixedly installed with heat exchanger plates 5 in thermal-arrest cabin 1, heat pump unit ontology 3 by recycle into
Pipe 2, circulation outlet pipe 4 connect simultaneously cycle heat exchange with heat exchanger plates 5, are equipped with shaft 10 in thermal-arrest cabin 1 at center vertically, shaft 10 it is upper
End is rotatably connected on the inner roof wall in thermal-arrest cabin 1, is circumferentially equidistantly set there are three heat accumulation machine in the inner bottom wall in thermal-arrest cabin 1 along it
Structure is fixedly connected with the heat-conducting plate 6 for conducting heat between heat accumulation mechanism and heat exchanger plates 5, shaft 10 on the side wall of shaft 10
Be equipped with for drive shaft 10 determine angular turn from control mechanism.
In the present invention, heat accumulation mechanism includes the heat storing plate 7 being fixedly mounted in 1 inner bottom wall of thermal-arrest cabin, the lower end of heat storing plate 7
Multiple thermally conductive sheets 9 are fixedly connected with, is fixedly connected with and multiple is inhaled correspondingly with 9 position of thermally conductive sheet on the bottom wall in thermal-arrest cabin 1
Heat cover 8, thermally conductive sheet 9 is located in heat-absorbing shield 8, and heat-conducting liquid is filled in heat-absorbing shield 8, and the heat-conducting liquid filled in heat-absorbing shield 8 is
Propylene glycol, more evenly stable, the upper and lower end faces of heat-conducting plate 6 when Heat in Soil is conducted heat by heat-absorbing shield 8 to thermally conductive sheet 9
Realization heat exchange is contacted with heat exchanger plates 5, heat storing plate 7 respectively.
It wherein, include the heat transfer block 12 being fixedly connected on 10 side wall of shaft, heat transfer block 12 and heat-conducting plate 6 from control mechanism
Direction it is consistent, the side of multiple heat storing plate 7 towards shafts 10 is fixedly connected to heat-conducting block 11, heat-conducting block 11 and heat storing plate 7
It mutually conducts heat and synthermal, and one end of heat transfer block 12 and 11 transmission of heat by contact of heat-conducting block, the sliding chamber of liquid storage, liquid storage is equipped in shaft 10
It is sliding it is intracavitary be filled with heat expansion liquid 13, heat expansion liquid 13 is kerosene, and volume deformation amount of expanding with heat and contract with cold is big, heat transfer block 12 it is another
End is run through the side wall of shaft 10 and is contacted with heat expansion liquid 13, and liquid cunning is intracavitary out slidably connects sliding plug 14, the lower end of sliding plug 14
It is rotatably connected to threaded rod 16, is fixedly connected with positive stop bead 15 on the inner wall of the sliding chamber of liquid storage, and positive stop bead 15 is slidably connected at spiral shell
In thread groove on rasp bar 16, the lower end fixing sleeve of threaded rod 16 is connected to unilateral bearing 17, consolidates in the collar wall of unilateral bearing 17
Surely it is connected with disc spring 18, the other end of disc spring 18 is fixedly connected in the inner bottom wall in thermal-arrest cabin 1, is fixedly connected on heat transfer block 12
Permanent magnets 19, heat-conducting block 11 are made of magnetic material, can be by the outside copper facing heat-conducting layer in nickel magnetic material, so that having magnetic
While absorption energy, there is preferable heating conduction.
The present invention can exchange hot plate 5 in use, thermal energy is transferred on heat exchanger plates 5 from heat storing plate 7 by heat-conducting plate 6
Thermal energy is improved, and then provides thermal energy for heat pump unit ontology 3, is led when the thermal energy on the heat storing plate of a stored energy mechanism constantly passes through
When hot plate 6 is transferred on heat exchanger plates 5, so that temperature constantly reduces on the heat storing plate, since heat transfer block 12 and heat-conducting block 11 are mutual
Heat transfer, therefore, the temperature of heat expansion liquid 13 constantly reduces, and as the temperature of heat expansion liquid 13 reduces, volume also reduces therewith,
So that 14 upward sliding of sliding plug, drives threaded rod 16 to move up, due to the position-limiting action of positive stop bead 15, that is, may make spiral shell
Rasp bar 16 rotates, and then passes through the single-direction transmission of unilateral bearing 17, drives 18 spiral of disc spring energetically, disc spring 18 mentions threaded rod 16
For reaction force, when the heat storing plate, which sufficiently passes out heat generating temperature, to be minimized, i.e., the reaction force that disc spring 18 provides is broken through
When attraction between permanent magnets 19 and heat-conducting block 11, disc spring 18 puts strength, drives threaded rod 16 to rotate by unilateral bearing 17, by
In the position-limiting action of the liquid of heat expansion liquid 13 incompressible characteristic and positive stop bead 15, and then shaft 10 is driven to rotate, so that forever
Magnetic patch 19 and next heat-conducting block 11 attract, while heat-conducting plate 6 turns to next 7 upper end of heat storing plate and continues the heat storing plate 7
On thermal energy transmitted, while the heat storing plate 7 of upper one abundant exoergic reuptakes Soil Thermal can be carried out energy storage, realizes one
For a heat storing plate while providing thermal energy, a upper heat storing plate realizes the stable circulation in finite region in storage thermal energy
Heat supply, and realize from control.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (5)
1. a kind of new energy modified earth source heat pump unit, including being mounted on the thermal-arrest cabin (1) of subsurface and installing on the ground
Heat pump unit ontology (3), which is characterized in that is fixedly installed with heat exchanger plates (5), the heat pump unit in the thermal-arrest cabin (1)
Ontology (3) connect simultaneously cycle heat exchange with heat exchanger plates (5) by circulation inlet pipe (2), circulation outlet pipe (4), during the thermal-arrest cabin (1) is interior
It is equipped with vertically at the heart shaft (10), the upper end of the shaft (10) is rotatably connected on the inner roof wall of thermal-arrest cabin (1), the thermal-arrest
It circumferentially equidistantly sets there are three heat accumulation mechanism in the inner bottom wall in cabin (1) along it, is fixedly connected on the side wall of the shaft (10)
Heat-conducting plate (6) for conducting heat between heat accumulation mechanism and heat exchanger plates (5), the shaft (10), which is equipped with, is used for drive shaft
(10) determine angular turn from control mechanism.
2. a kind of new energy modified earth source heat pump unit according to claim 1, which is characterized in that the heat accumulation mechanism
Including the heat storing plate (7) being fixedly mounted in thermal-arrest cabin (1) inner bottom wall, the lower end of the heat storing plate (7) is fixedly connected with multiple
Thermally conductive sheet (9) is fixedly connected on the bottom wall of the thermal-arrest cabin (1) multiple with the one-to-one heat-absorbing shield in thermally conductive sheet (9) position
(8), the thermally conductive sheet (9) is located in heat-absorbing shield (8), and heat-conducting liquid, the heat-conducting plate (6) are filled in the heat-absorbing shield (8)
Upper and lower end faces contacted respectively with heat exchanger plates (5), heat storing plate (7) realization heat exchange.
3. a kind of new energy modified earth source heat pump unit according to claim 2, which is characterized in that described from control machine
Structure includes the heat transfer block (12) being fixedly connected on shaft (10) side wall, the direction one of the heat transfer block (12) and heat-conducting plate (6)
Cause, the side of multiple heat storing plate (7) towards the shafts (10) is fixedly connected to heat-conducting block (11), the heat-conducting block (11) with
Heat storing plate (7) mutually heat transfer is simultaneously synthermal, and one end of heat transfer block (12) and heat-conducting block (11) transmission of heat by contact, the shaft (10)
Interior to be equipped with the sliding chamber of liquid storage, the liquid storage is sliding intracavitary filled with heat expansion liquid (13), and the other end of the heat transfer block (12), which runs through, to be turned
The side wall of axis (10) is simultaneously contacted with heat expansion liquid (13), and the cunning of liquid out is intracavitary to slidably connect sliding plug (14), the sliding plug
(14) lower end is rotatably connected to threaded rod (16), is fixedly connected with positive stop bead (15) on the inner wall of the sliding chamber of the liquid storage, and limit
Position pearl (15) is slidably connected in the thread groove on threaded rod (16), and the lower end fixing sleeve of the threaded rod (16) is connected to one-way shaft
It holds (17), is fixedly connected with disc spring (18) in the collar wall of the unilateral bearing (17), the other end of the disc spring (18) is fixed
It is connected in the inner bottom wall of thermal-arrest cabin (1), is fixedly connected with permanent magnets (19) on the heat transfer block (12), the heat-conducting block (11)
It is made of magnetic material.
4. a kind of new energy modified earth source heat pump unit according to claim 3, which is characterized in that the heat expansion liquid
It (13) is kerosene.
5. a kind of new energy modified earth source heat pump unit according to claim 2, which is characterized in that the heat-absorbing shield
(8) heat-conducting liquid filled in is propylene glycol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500418.1A CN110220327B (en) | 2019-06-11 | 2019-06-11 | New forms of energy improved generation ground source heat pump set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910500418.1A CN110220327B (en) | 2019-06-11 | 2019-06-11 | New forms of energy improved generation ground source heat pump set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110220327A true CN110220327A (en) | 2019-09-10 |
| CN110220327B CN110220327B (en) | 2020-11-03 |
Family
ID=67816365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910500418.1A Active CN110220327B (en) | 2019-06-11 | 2019-06-11 | New forms of energy improved generation ground source heat pump set |
Country Status (1)
| Country | Link |
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| CN (1) | CN110220327B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091411A (en) * | 2015-09-02 | 2015-11-25 | 天津大学 | Refrigerating and heating dual-purpose heat pipe type ground heat exchanger |
| CN207395239U (en) * | 2017-11-08 | 2018-05-22 | 天津美意机电设备工程有限公司 | Cooling tower hybrid ground source heat pump device |
| CN207893922U (en) * | 2018-02-22 | 2018-09-21 | 山东集诚新能源科技有限公司 | A kind of earth source heat pump unit of building and heating |
| CN208253936U (en) * | 2018-06-04 | 2018-12-18 | 福建浩邦锐兴智能工程建设有限公司 | A kind of smart home central water heating device |
-
2019
- 2019-06-11 CN CN201910500418.1A patent/CN110220327B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105091411A (en) * | 2015-09-02 | 2015-11-25 | 天津大学 | Refrigerating and heating dual-purpose heat pipe type ground heat exchanger |
| CN207395239U (en) * | 2017-11-08 | 2018-05-22 | 天津美意机电设备工程有限公司 | Cooling tower hybrid ground source heat pump device |
| CN207893922U (en) * | 2018-02-22 | 2018-09-21 | 山东集诚新能源科技有限公司 | A kind of earth source heat pump unit of building and heating |
| CN208253936U (en) * | 2018-06-04 | 2018-12-18 | 福建浩邦锐兴智能工程建设有限公司 | A kind of smart home central water heating device |
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| Publication number | Publication date |
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| CN110220327B (en) | 2020-11-03 |
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Effective date of registration: 20201012 Address after: No.106-4, Tiefo Road, Wuhou Avenue, Wuhou District, Chengdu, Sichuan 610000 Applicant after: Sichuan Liangshi Agricultural Technology Co.,Ltd. Address before: 244000 No. 405, 55 World Gardens, Tongguanshan District, Tongling City, Anhui Province Applicant before: Zhang Yongdong |
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