CN204254887U - Based on the flue gas waste heat recovery apparatus of CHP boiler - Google Patents
Based on the flue gas waste heat recovery apparatus of CHP boiler Download PDFInfo
- Publication number
- CN204254887U CN204254887U CN201420681923.3U CN201420681923U CN204254887U CN 204254887 U CN204254887 U CN 204254887U CN 201420681923 U CN201420681923 U CN 201420681923U CN 204254887 U CN204254887 U CN 204254887U
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- China
- Prior art keywords
- flue gas
- waste heat
- circulation water
- tower body
- recovery apparatus
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 239000003546 flue gas Substances 0.000 title claims abstract description 63
- 239000002918 waste heat Substances 0.000 title claims abstract description 42
- 238000011084 recovery Methods 0.000 title claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000007921 spray Substances 0.000 claims abstract description 26
- 239000000779 smoke Substances 0.000 claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 21
- 238000000034 method Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model provides a kind of flue gas waste heat recovery apparatus based on CHP boiler, and the described flue gas waste heat recovery apparatus based on CHP boiler comprises: chimney, connects CHP boiler; Direct contact type waste heat heat exchange columns, connects described chimney; Described direct contact type waste heat heat exchange columns comprises tower body, the smoke inlet be arranged on described tower body, exhanst gas outlet, be arranged on the spray equipment in tower body and be arranged in described tower body and the demister be positioned at above spray equipment; Described spray equipment comprises: the nozzle of point multilayer layout up and down; Extend into the Sprayer Circulation water lines in tower body, described spray equipment connects described Sprayer Circulation water lines; Flue gas booster fan, is connected with described smoke inlet; Heat pump, connects described Sprayer Circulation water lines.In the utility model, the heat of flue gas is sprayed intermediary's water and is absorbed, and temperature drops to about 30 DEG C by about 90 DEG C.
Description
Technical field
The utility model relates to energy technology application, is specifically related to a kind of flue gas waste heat recovery apparatus based on CHP boiler.
Background technology
Cogeneration of heat and power (heat and power cogeneration) refers to that power plant both produced electric energy, steam turbine generator is utilized again to do the steam of merit to the mode of production of user's heat supply, namely produce the technical process of electricity, heat energy simultaneously, be that one is based upon on cascaded utilization of energy conceptual foundation, will freeze, heat the supply system of (comprising for warm supplying hot water) and power generation process integration.Its maximum feature is exactly carry out cascade utilization to the energy of different quality, temperature higher, the heat energy with larger available energy is used for being generated electricity, the low grade heat energy that temperature is lower is then used to heat supply or refrigeration.Not only increase the utilization ratio of the energy like this, and decrease the discharge of carbide and pernicious gas, there is good economic benefit and social benefit.
The efficiency of current cogeneration system boiler can reach about 90%, but because the constantly soaring of energy prices and environmental requirement improve constantly, so it is still extremely important how to improve cogeneration system boiler efficiency further, and heat loss due to exhaust gas reduces the principal element of boiler efficiency in existing boiler design technology, so sensible heat how in Mist heat recovering and latent heat are the keys promoting gas fired-boiler efficiency.
In sum, there is following problem in prior art: existing cogeneration of heat and power flue gas waste heat recovery apparatus efficiency is low.
Utility model content
The utility model provides a kind of flue gas waste heat recovery apparatus based on CHP boiler, to solve the inefficient problem of existing cogeneration of heat and power flue gas waste heat recovery apparatus.
For this reason, the utility model proposes a kind of flue gas waste heat recovery apparatus based on CHP boiler, the described flue gas waste heat recovery apparatus based on CHP boiler comprises:
Chimney, connects CHP boiler;
Direct contact type waste heat heat exchange columns, connects described chimney;
Described direct contact type waste heat heat exchange columns comprises tower body, the smoke inlet be arranged on described tower body, exhanst gas outlet, be arranged on the spray equipment in tower body and be arranged in described tower body and the demister be positioned at above spray equipment; Wherein, described smoke inlet is connected described chimney with exhanst gas outlet; Described spray equipment comprises: the nozzle of point multilayer layout up and down;
Extend into the Sprayer Circulation water lines in tower body, described spray equipment connects described Sprayer Circulation water lines;
Flue gas booster fan, is connected with described smoke inlet;
Heat pump, connects described Sprayer Circulation water lines.
Further, the described flue gas waste heat recovery apparatus based on CHP boiler also comprises:
By-pass flue, is arranged on outside described tower body, and described chimney is connected in parallel between described smoke inlet and exhanst gas outlet;
Bypath valve, is arranged on described by-pass flue.
Further, described by-pass flue is cylindrical passageway, and the height of described by-pass flue and diameter are less than described chimney.
Further, described smoke inlet is provided with inlet valve, and described exhanst gas outlet is provided with outlet valve.
Further, the number of plies of described nozzle is six layers.
Further, the described nozzle of each layer projection non-overlapping copies in the horizontal direction.
Further, the deflector to flue gas water conservancy diversion is provided with in described tower body.
Further, the number of described heat pump is four, and the number of described Sprayer Circulation water lines is six covers; Six layers of described nozzle comprise: four layers of common layer nozzle and two-layer reserved layer nozzle; Six cover Sprayer Circulation water lines comprise: the conventional Sprayer Circulation water lines of four covers and the reserved Sprayer Circulation water lines of two covers; Every layer of common layer nozzle connects a set of conventional Sprayer Circulation water lines, and often the conventional Sprayer Circulation water lines of cover connects a heat pump; Often overlap described reserved Sprayer Circulation water lines to connect one deck and reserve layer nozzle.
The nozzle that the utility model is arranged by arranging point multilayer, guarantees time of contact and the contact area of flue gas and water in tower, ensure that and reasonably spray coverage rate; Ensureing that uniform atomizing effect can reduce the energy consumption of system simultaneously.
Accompanying drawing explanation
Fig. 1 is the operation principle schematic diagram of the flue gas waste heat recovery apparatus based on CHP boiler of the utility model embodiment.
Drawing reference numeral illustrates:
The reserved layer nozzle 341 of 1 CHP boiler 2 chimney 21 by-pass valve control 3 tower body 31 smoke inlet 310 inlet valve 32 exhanst gas outlet 320 outlet valve 33 spray equipment 331 common layer nozzle 332 is commonly used Sprayer Circulation water lines 342 and is reserved outer bypass route 60 neat stress of flue gas route 502 tower in water 380 intermediary of water outlet pipeline 370 intermediary of Sprayer Circulation water lines 35 heat pump 37 intermediary water 4 by-pass flue 41 bypath valve 50 flue gas 501 tower
Detailed description of the invention
In order to there be understanding clearly to technical characteristic of the present utility model, object and effect, now contrast accompanying drawing and the utility model is described.
As shown in Figure 1, the flue gas waste heat recovery apparatus based on CHP boiler of the utility model embodiment comprises:
Chimney 2, connect CHP boiler 1, CHP boiler 1 both produced electric energy, steam turbine generator is utilized again to do the steam of merit to user's heat supply, cascade utilization is carried out to the energy of different quality, temperature heat energy that is higher, that have larger available energy is used for being generated electricity, and the low grade heat energy that temperature is lower is then used to heat supply or refrigeration;
Direct contact type waste heat heat exchange columns, connects described chimney;
Described direct contact type waste heat heat exchange columns comprises tower body 3, the smoke inlet 31 be arranged on described tower body 3, exhanst gas outlet 32, be arranged on the spray equipment 33 in tower body and be arranged in described tower body and the demister (not shown) be positioned at above spray equipment; Demister is used for avoiding the drop of air-flow to carry secretly.
Wherein, described smoke inlet 31 is connected described chimney 2 with exhanst gas outlet 32, smoke inlet 31 is positioned at the bottom of tower body, exhanst gas outlet 32 is positioned at the top of tower body, chimney 2 is the original chimney of existing CHP boiler 1, it is such as cylindrical shape, but the utility model unlike the prior art: the side direction of chimney 2 offers two through holes, in order to connect smoke inlet 31 and exhanst gas outlet 32 respectively, in addition, be provided with by-pass valve control 21 in chimney 2 of the present utility model, control the opening and closing of chimney 2; Described spray equipment 33 comprises: the nozzle of point multilayer layout up and down;
Extend into the Sprayer Circulation water lines in tower body, described spray equipment 33 connects described Sprayer Circulation water lines;
Flue gas booster fan, is connected with described smoke inlet, and flue gas booster fan extracts flue gas out from original chimney 2 bottom, and the flue gas of extraction enters bottom tower body 3, from the bottom to top through waste heat tower after supercharging;
Heat pump 35, connects described Sprayer Circulation water lines, to realize heat exchange and heat energy utilization.
Further, the described flue gas waste heat recovery apparatus based on CHP boiler also comprises:
By-pass flue 4, is arranged on outside described tower body 3, and described chimney 2 is connected in parallel between described smoke inlet 31 and exhanst gas outlet 32; Bypath valve 41, is arranged on described by-pass flue 4, opens or closes by-pass flue 4.By-pass flue 4 plays for subsequent use and effect that is escape way, to prevent when tower body 3 fault, can discharge the flue gas 50 (former flue gas or the flue gas without tower body process) of CHP boiler 1 in time.When tower body 3 normally uses, bypath valve 41 closes by-pass flue 4, and flue gas 50 flue gas route 501 in tower of CHP boiler 1 is discharged, and carries out heat exchange with shower water, discharges neat stress 60; When tower body 3 has fault normally not use, bypath valve 41 opens by-pass flue 4, and the flue gas 50 of CHP boiler 1 is discharged along the outer bypass route 502 of tower.
Further, described by-pass flue 4 is the cylindrical passageway vertically arranged, and the height of described by-pass flue 3 and diameter are less than described chimney 2.Chimney 2 is generally the original chimney of existing CHP boiler 1, and chimney 2 is seated in ground, highly higher, and construction scope is comparatively large, and cost is high, and by-pass flue 4 is alternate channel, without the need to too high, too large.As shown in Figure 1, by-pass flue 4 is not located on the ground, but between the inlet duct be connected with smoke inlet 31 and the outlet conduit be connected with exhanst gas outlet 32, the inlet duct be wherein connected with smoke inlet 31 and the outlet conduit that is connected with exhanst gas outlet 32 are such as being horizontally disposed with, and be above the ground level, therefore, the construction scope of by-pass flue 4 is less, and cost is lower.
Further, described smoke inlet is provided with inlet valve 310, and described exhanst gas outlet is provided with outlet valve 320, with the turnover of flue gas in control tower.
Further, the deflector to flue gas water conservancy diversion is provided with in described tower body.Deflector mainly realizes the water conservancy diversion of flue gas in tower body, improves the uniformity of flow of flue gas in tower body, avoid the formation of eddy current and turbulent flow so affect heat exchange efficiency.
Further, the number of plies of described nozzle is six layers, guarantees time of contact and the contact area of flue gas and water in tower, ensure that and reasonably spray coverage rate.Further, the described nozzle of each layer projection non-overlapping copies in the horizontal direction, selects the screw type solid nozzle without blocking at perisphere, and internal layer is selected without blocking screw type nozzle, to increase spray coverage rate.
Further, the number of described heat pump 35 is four, and the number of described Sprayer Circulation water lines is six covers; Six layers of described nozzle comprise: four layers of common layer nozzle 331 and two-layer reserved layer nozzle 332; Six cover Sprayer Circulation water lines comprise: the conventional Sprayer Circulation water lines of four covers 341 and the reserved Sprayer Circulation water lines 342 of two covers; Every layer of common layer nozzle 331 connects a set of conventional Sprayer Circulation water lines 341, and often the conventional Sprayer Circulation water lines 341 of cover connects a heat pump 35; Often overlap described reserved Sprayer Circulation water lines 342 to connect one deck and reserve layer nozzle 332, but reserved Sprayer Circulation water lines 342 no longer connects heat pump.Six cover Sprayer Circulation water lines are divided into by the utility model: the conventional Sprayer Circulation water lines of four covers 341 and the reserved Sprayer Circulation water lines 342 of two covers.Like this, the corresponding a set of Sprayer Circulation water pipe of each source pump can guarantee that spray heat transfer process is interference-free, ensures heat exchange efficiency; The reserved Sprayer Circulation water lines of two covers is as subsequent use simultaneously, occurs blocking, can switch when the faults such as corrosion, ensure the continous-stable produced at other pipelines.
The course of work of the present utility model is:
1, low-temperature flue gas (90 DEG C) is extracted out from original chimney 2 bottom, and the flue gas of extraction enters bottom tower body 3, from the bottom to top through waste heat tower after supercharging.In waste heat tower, flue gas absorbs the heat in flue gas with the abundant counter current contact of intermediary's water after spray atomizing, intermediary's water, and flue-gas temperature is reduced to (25-30 DEG C), then enters Sprayer Circulation water lines from intermediary's water outlet pipeline 37.Owing to there is a certain amount of droplet in spray liquid, for avoiding the drop of air-flow to carry secretly, deflection plate demister is set on waste heat tower spraying layer top.Flue gas after cooling, after the drop that deflection plate demister removing major part is carried, forms neat stress 60, enters former chimney 2 enter air through exhaust pass.
2, waste heat tower 3 is entered after spraying the source pump waste heat recovery of intermediary's water heat pump 35 in factory, intermediary's water 380 enters in waste heat tower becomes droplet by nozzle atomization after spray equipment, spray droplet and flue gas adverse current direct contact heat transfer realize flue gas heat and reclaim, and the drop gravitate through flue gas falls into the water leg being arranged on waste heat tower bottom.Waste heat tower water leg is provided with delivery port, pumps into source pump carry out waste heat recovery from water leg intermediary's water 370 out by intermediary's water water pump.Due in flue gas containing steam, intermediary's Water spray drop is with flue gas adverse current contact heat-exchanging process, and the steam in flue gas takes part of the condensate, and discharges a large amount of latent heats of vaporization, while condensed liquid water mix with intermediary water, recycle after sending tower.
In the utility model, the heat of flue gas is sprayed intermediary's water and is absorbed, and temperature drops to about 30 DEG C by about 90 DEG C, and in the sensible heat of recovered flue gas temperature drop and flue gas, steam condenses the latent heat of vaporization discharged, and is utilized by condensate-water polishing simultaneously.
The foregoing is only the schematic detailed description of the invention of the utility model, and be not used to limit scope of the present utility model.For each part of the present utility model can mutually combine under the condition of not conflicting; any those skilled in the art; equivalent variations done under the prerequisite not departing from design of the present utility model and principle and amendment, all should belong to the scope of the utility model protection.
Claims (8)
1. based on a flue gas waste heat recovery apparatus for CHP boiler, it is characterized in that, the described flue gas waste heat recovery apparatus based on CHP boiler comprises:
Chimney, connects CHP boiler;
Direct contact type waste heat heat exchange columns, connects described chimney;
Described direct contact type waste heat heat exchange columns comprises tower body, the smoke inlet be arranged on described tower body, exhanst gas outlet, be arranged on the spray equipment in tower body and be arranged in described tower body and the demister be positioned at above spray equipment; Wherein, described smoke inlet is connected described chimney with exhanst gas outlet; Described spray equipment comprises: the nozzle of point multilayer layout up and down;
Extend into the Sprayer Circulation water lines in tower body, described spray equipment connects described Sprayer Circulation water lines;
Flue gas booster fan, is connected with described smoke inlet;
Heat pump, connects described Sprayer Circulation water lines.
2., as claimed in claim 1 based on the flue gas waste heat recovery apparatus of CHP boiler, it is characterized in that, the described flue gas waste heat recovery apparatus based on CHP boiler also comprises:
By-pass flue, is arranged on outside described tower body, and described chimney is connected in parallel between described smoke inlet and exhanst gas outlet;
Bypath valve, is arranged on described by-pass flue.
3., as claimed in claim 2 based on the flue gas waste heat recovery apparatus of CHP boiler, it is characterized in that, described by-pass flue is cylindrical passageway, and the height of described by-pass flue and diameter are less than described chimney.
4., as claimed in claim 2 based on the flue gas waste heat recovery apparatus of CHP boiler, it is characterized in that, described smoke inlet is provided with inlet valve, and described exhanst gas outlet is provided with outlet valve.
5., as claimed in claim 1 based on the flue gas waste heat recovery apparatus of CHP boiler, it is characterized in that, the number of plies of described nozzle is six layers.
6., as claimed in claim 1 based on the flue gas waste heat recovery apparatus of CHP boiler, it is characterized in that, the described nozzle of each layer projection non-overlapping copies in the horizontal direction.
7., as claimed in claim 1 based on the flue gas waste heat recovery apparatus of CHP boiler, it is characterized in that, in described tower body, be provided with the deflector to flue gas water conservancy diversion.
8., as claimed in claim 5 based on the flue gas waste heat recovery apparatus of CHP boiler, it is characterized in that, the number of described heat pump is four, and the number of described Sprayer Circulation water lines is six covers; Six layers of described nozzle comprise: four layers of common layer nozzle and two-layer reserved layer nozzle; Six cover Sprayer Circulation water lines comprise: the conventional Sprayer Circulation water lines of four covers and the reserved Sprayer Circulation water lines of two covers; Every layer of common layer nozzle connects a set of conventional Sprayer Circulation water lines, and often the conventional Sprayer Circulation water lines of cover connects a heat pump; Often overlap described reserved Sprayer Circulation water lines to connect one deck and reserve layer nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681923.3U CN204254887U (en) | 2014-11-14 | 2014-11-14 | Based on the flue gas waste heat recovery apparatus of CHP boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420681923.3U CN204254887U (en) | 2014-11-14 | 2014-11-14 | Based on the flue gas waste heat recovery apparatus of CHP boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204254887U true CN204254887U (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420681923.3U Active CN204254887U (en) | 2014-11-14 | 2014-11-14 | Based on the flue gas waste heat recovery apparatus of CHP boiler |
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| Country | Link |
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| CN (1) | CN204254887U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020026A (en) * | 2015-06-24 | 2015-11-04 | 北京源深节能技术有限责任公司 | Fuel machine backpressure protection device |
| CN111412689A (en) * | 2019-02-22 | 2020-07-14 | 中国电力工程顾问集团华北电力设计院有限公司 | Intensive double-layer arrangement system applied to deep utilization of flue gas waste heat |
-
2014
- 2014-11-14 CN CN201420681923.3U patent/CN204254887U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105020026A (en) * | 2015-06-24 | 2015-11-04 | 北京源深节能技术有限责任公司 | Fuel machine backpressure protection device |
| CN111412689A (en) * | 2019-02-22 | 2020-07-14 | 中国电力工程顾问集团华北电力设计院有限公司 | Intensive double-layer arrangement system applied to deep utilization of flue gas waste heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240122 Address after: Room R2116, 2nd Floor, Building 3, No. 18 Keyuan Road, Daxing Economic Development Zone, Beijing, 102627 Patentee after: Beijing Jingneng Digital Technology Co.,Ltd. Country or region after: China Address before: 100142 5th floor, lanhong center, 23 Dinghui Beili, Haidian District, Beijing Patentee before: BEIJING YUANSHEN ENERGY SAVING TECHNOLOGY Co.,Ltd. Country or region before: China |
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| TR01 | Transfer of patent right |