CN102012065B - Heating system heat metering and heat energy-saving control method and special device thereof - Google Patents
Heating system heat metering and heat energy-saving control method and special device thereof Download PDFInfo
- Publication number
- CN102012065B CN102012065B CN2010105792530A CN201010579253A CN102012065B CN 102012065 B CN102012065 B CN 102012065B CN 2010105792530 A CN2010105792530 A CN 2010105792530A CN 201010579253 A CN201010579253 A CN 201010579253A CN 102012065 B CN102012065 B CN 102012065B
- Authority
- CN
- China
- Prior art keywords
- supply network
- heat supply
- temperature
- heat
- value
- 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.)
- Active
Links
Images
Abstract
The invention provides a heating system heat metering and heat energy-saving control method and a special device thereof. The method comprises the following steps of: calculating heat exchange quantity according to the water inlet and outlet temperature and the flow of a heat supply network pipeline through a controller, wherein the heat exchange quantity is used for metering building heat and serves as the basis of building heating charge; setting an initial target temperature value through the controller, correcting the initial target temperature value in real time according to outdoor environmental temperature, building load characteristics, indoor temperature and energy-saving control strategy so as to obtain a real-time target temperature value, and arranging at least one secondary heat supply network temperature sensor on a water supply and return pipeline of a secondary heat supply network pipeline; comparing the temperature value acquired by the secondary heat supply network temperature sensor with the real-time target temperature value, and correcting. The heat is regulated and controlled when the heat is metered. Therefore, the heat supply is regulated according to the building heating load, and the heating energy consumption and cost are reduced.
Description
Technical field
The present invention relates to a kind of control method and isolated plant of heating system.Specifically, relate to a kind of heating system heat metering and heat energy-saving control method and isolated plant thereof.
Background technology
Energy savings is the inevitable requirement that country and society realize sustainable development.Current, China's building heating energy consumption is higher, and main cause is to lack the household measurement heat-supplying charge, and the heat supply waste is serious.
House town and country construction portion, State Development and Reform Commission, the Ministry of Finance and State Administration of Quality Supervision, Inspection and Quarantine put into effect " about the suggestion of further propelling heat metering reform " (building the city [2010] No. 14); Require new completion the in northern heating area to build and accomplish the existing residential architecture that heat metering is transformed; Cancellation is carried out by the charge method of valuating with heat with the area charge method of valuating.Used for two years, existing large public building is all accomplished the heat metering transformation and is carried out by charging with the heat valuation.The existing building that the above city of region, northern heating area reaches energy-conservation 50% compulsory standard during " 12 " is accomplished the heat metering transformation basically, realizes by charging with the heat valuation.
By heat valuation charge is the important behave of building heating energy saving.For most of commercial building and public building, because whole building is same owner, only need carry out the heat metering to whole building, heat charging this moment difficulty is less.But in hot Measuring Reformation of existing building and new building heat metering design, still there is following problem.
The first, generally adopt calorimeter to carry out the heat metering, but existing calorimeter does not have the adjusting and the control function of heat, can't be according to of the adjusting of building load demand to heat supply temperature and heating load.Simultaneously, the operating cost of one-level heat network system equipment such as water pump, boiler plant is higher.
The second, special operating personnel can control heating load through valve on the regulating system pipeline, but are difficult to satisfy the variation demand of building heating load when pursuing every day, and system's operation and the increase of pipeline cost.
Three, heat exchange station system heat supply every day water temperature is constant relatively.For satisfying heating effect, all adopt higher heat supply temperature every day, the architecture indoor comfort level is relatively poor, causes the waste of heating load, and has increased user's heating cost.
Four, during present household metering was transformed, if adopt present calorimeter and realize heating load control, the user need increase special-purpose heat quality control system, and this causes the significantly raising of customer investment.
Summary of the invention
The purpose of this invention is to provide a kind of heating system heat metering and heat energy-saving control method and isolated plant thereof, realize hot function of measuring and heat energy-saving control function simultaneously.
Technical scheme of the present invention is following:
A kind of heating system heat metering and calorie control method, described heating system comprise through interconnected heat supply network pipeline of Intermediate Heat Exchanger (6) and secondary heat supply network pipeline, it is characterized in that:
Flow measurement device (4) and control valve (7) are installed respectively on a heat supply network pipeline; And on the confession of a heat supply network pipeline, water return pipeline, a heat supply network supply water temperature sensor (9) and a heat supply network return water temperature sensor (3) are installed respectively; Controller (1) is according to heat supply network pipeline Inlet and outlet water temperature and flow rate calculation heat; Be used for the building heat metering, and as the foundation of space heating charge; And,
And at least one secondary heat supply network temperature sensor is installed on the confession of secondary heat supply network pipeline, water return pipeline; Set the initial target temperature value through controller (1), and according to outdoor environment temperature, building loading characteristic, indoor temperature and Energy Saving Control strategy the initial target temperature value is revised in real time and to be obtained real-time target temperature value; Temperature value and described real-time target temperature value that secondary heat supply network temperature sensor is collected compare; Regulate a heat supply network pipeline thermal source flow through control valve (7), make temperature value that a heat supply network supply water temperature sensor (9) and a heat supply network return water temperature sensor (3) collect and the deviation between the real-time target temperature value in allowed band;
Described real-time correcting method is:
Tw＝TwS+ΔTwT+ΔTwF
In the formula,
Tw-hot water control target is supply water temperature or return water temperature;
TwS-hot water control target initial set value is set in the system debug process;
Δ TwT is the correction according to outdoor environment temperature, indoor temperature, and this correction changes according to mathematical function relationship with the temperature difference between outdoor environment temperature and indoor temperature actual value and the indoor temperature desired value; Described mathematical function relationship is following:
ΔTwT＝A×Ta+B×(TnA-TnS)+C
The numerical basis environment temperature Ta of correction amount TwT, indoor temperature actual value TnA and indoor temperature desired value TnS confirm;
In the formula, A, B, C are the correction function coefficient, are a certain constant, and the span of A is :-5～5, and the span of B is :-5～5, the span of C is :-10～10 ℃;
Δ TwF is the correction according to the building loading characteristic, and this correction is with the building loading characteristic variations; The a certain period of building is when being lower than conventional value to the indoor temperature demand, and this correction is for negative, and when being higher than the routine value, correction is for just; Δ TwF formulates concrete correction value according to the concrete part throttle characteristics of different buildings in the different functions period, and this correction value is a certain constant, and scope is :-80～20 ℃.
Good effect of the present invention is:
1), when existing building carries out hot Measuring Reformation, when adopting this device and can carry out heat metering, realize the adjusting and the control of heat, thus realize reducing heating energy consumption and expense according to of the adjusting of building heat supplying load to heating load; Can significantly reduce one-level heating network operation expense through VFC simultaneously to one-level heat supply network water pump, boiler plant.
2), the user is through to the setting of heating parameter, controls heating load automatically by controller, adjusting when heating load pursue with the building demand.Reduce the dependence of heating system, reduce the heating system operation easier, reduce the operation and management expense the people.
3), realize regulating when heating load is pursued with the building demand raising architecture indoor comfort level.
4), during household metering transforms, directly adopt this device, realize heating load metering and heating load Energy Saving Control simultaneously, can reduce the system reform and invest.
Description of drawings
Fig. 1 is the schematic diagram of the inventive method, also is the structural representation of described heat metering and control device.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment technical scheme of the present invention is further specified:
As shown in Figure 1, described heat metering and control device comprise heat supply network pipeline and secondary heat supply network pipeline, also comprise controller 1.On a heat supply network pipeline, be serially connected with heat supply network supply water temperature sensor 9, control valve 7, Intermediate Heat Exchanger 6, flow measurement device 4 and a heat supply network return water temperature sensor 3 one time.Secondary heat supply network pipeline is connected with described Intermediate Heat Exchanger 6.Secondary heat supply network pipeline is provided with secondary heat supply network temperature sensor, and described secondary heat supply network temperature sensor can also can only be provided with one of them for secondary heat supply network supply water temperature sensor 5 and 8 two sensors of secondary heat supply network return water temperature sensor.
A described heat supply network supply water temperature sensor 9, control valve 7, flow measurement device 4, heat supply network return water temperature sensor 3 and secondary heat supply network temperature sensor are connected with controller 1 respectively.Controller 1 also is connected with environment temperature sensor 2.Also comprise the indoor temperature transmitter 10 that is connected with controller 1 through wired or wireless signal.
A kind of heating system heat metering and calorie control method; Described heating system comprises through Intermediate Heat Exchanger 6 an interconnected heat supply network pipeline and secondary heat supply network pipelines; Flow measurement device 4 and control valve 7 are installed respectively on a heat supply network pipeline; And a heat supply network supply water temperature sensor 9 and a heat supply network return water temperature sensor 3 be installed respectively on the confession water return pipeline of a heat supply network pipeline; Controller 1 is used to build heat metering according to heat supply network pipeline Inlet and outlet water temperature and flow rate calculation heat, and as the foundation of space heating charge.
Set the initial target temperature value through controller 1; And according to outdoor environment temperature, building load characteristic, indoor temperature and Energy Saving Control strategy the initial target temperature value is revised in real time and to be obtained real-time target temperature value, and on the confession of secondary heat supply network pipeline, water return pipeline, at least one secondary heat supply network temperature sensor is installed; Temperature value and described real-time target temperature value that secondary heat supply network temperature sensor is collected compare; Regulate a heat supply network pipeline thermal source flow through control valve 7, make temperature value that heat supply network temperature sensor collects and in real time the deviation between the target temperature value in allowed band;
Described real-time correcting method is:
Tw＝TwS+ΔTwT+ΔTwF
In the formula,
Tw-hot water control target can be supply water temperature, also can be return water temperature;
TwS-hot water control target initial set value is set in the system debug process;
Δ TwT is the correction according to outdoor environment temperature, indoor temperature, and this correction changes according to mathematical function relationship with the temperature difference between outdoor environment temperature and indoor temperature and the indoor temperature desired value; Described mathematical function relationship is following:
ΔTwT＝A×Ta+B×(TnA-TnS)+C
The numerical basis environment temperature Ta of correction amount TwT, indoor temperature actual value TnA and indoor temperature desired value TnS confirm;
In the formula, A, B, C are the correction function coefficient, are a certain constant, the span of A is :-5～5, the span of B is :-5～5, the span of C is :-10～10 ℃;
Δ TwF is the correction according to the building load characteristic, and this correction is with the building loading characteristic variations; Build a certain period when indoor temperature demand is lower than conventional value, this correction value is for bearing, and when being higher than conventional numerical value, this numerical value is for just; Δ TwF builds concrete part throttle characteristics according to difference, formulates concrete correction numerical value in the different functions period, and this correction numerical value is a certain constant, and scope is :-80～20 ℃.
For example:
With certain government offices building is example, and the supply water temperature of selecting the secondary heat supply network is as hot water control target Tw, TwS=50 ℃ of its initial set value; The indoor temperature setting value is 18 ℃, and the function coefficients of correction amount TwT is got A=1, B=-1, C=0;
According to the building load characteristic, non-rest period Δ TwF=0 ℃; 12 noon～14 are the nooning period, set TwF=-10 ℃ of Δ.
Then, this is built under the normal operation conditions, and is following with the variation hot water control target Tw numerical value of environment temperature and indoor temperature:
The non-rest period: environment temperature Ta=0 ℃, in the time of indoor temperature TnA=20 ℃, Tw=48 ℃.
The non-rest period: environment temperature Ta=5 ℃, in the time of indoor temperature TnA=20 ℃, Tw=43 ℃.
The non-rest period: environment temperature Ta=5 ℃, in the time of indoor temperature TnA=16 ℃, Tw=47 ℃.
Nooning period: environment temperature Ta=0 ℃, in the time of indoor temperature TnA=20 ℃, Tw=38 ℃.
Nooning period: environment temperature Ta=5 ℃, in the time of indoor temperature TnA=20 ℃, Tw=33 ℃.
Nooning period: environment temperature Ta=5 ℃, in the time of indoor temperature TnA=16 ℃, Tw=37 ℃.
It is thus clear that, adopt above control strategy after because the significantly reduction of hot water control target temperature Tw, heating load will have obvious reduction, thereby can effectively practice thrift heating cost, realize energy-conservation purpose.
Claims (1)
1. heating system heat metering and calorie control method, described heating system comprises through interconnected heat supply network pipeline of Intermediate Heat Exchanger (6) and secondary heat supply network pipeline, it is characterized in that:
Flow measurement device (4) and control valve (7) are installed respectively on a heat supply network pipeline; And on the confession of a heat supply network pipeline, water return pipeline, a heat supply network supply water temperature sensor (9) and a heat supply network return water temperature sensor (3) are installed respectively; Controller (1) is according to heat supply network pipeline Inlet and outlet water temperature and flow rate calculation heat; Be used for the building heat metering, and as the foundation of space heating charge; And,
And at least one secondary heat supply network temperature sensor is installed on the confession of secondary heat supply network pipeline, water return pipeline; Set the initial target temperature value through controller (1), and according to outdoor environment temperature, building loading characteristic, indoor temperature and Energy Saving Control strategy the initial target temperature value is revised in real time and to be obtained real-time target temperature value; Temperature value and described real-time target temperature value that secondary heat supply network temperature sensor is collected compare; Regulate a heat supply network pipeline thermal source flow through control valve (7), make temperature value that a heat supply network supply water temperature sensor (9) and a heat supply network return water temperature sensor (3) collect and the deviation between the real-time target temperature value in allowed band;
Described real-time correcting method is:
Tw＝TwS+ΔTwT+ΔTwF
In the formula,
Tw-hot water control target is supply water temperature or return water temperature;
TwS-hot water control target initial set value is set in the system debug process;
Δ TwT is the correction according to outdoor environment temperature, indoor temperature, and this correction changes according to mathematical function relationship with the temperature difference between outdoor environment temperature and indoor temperature actual value and the indoor temperature desired value; Described mathematical function relationship is following:
ΔTwT＝A×Ta+B×(TnA-TnS)+C
The numerical basis environment temperature Ta of correction amount TwT, indoor temperature actual value TnA and indoor temperature desired value TnS confirm;
In the formula, A, B, C are the correction function coefficient, are a certain constant, and the span of A is :-5～5, and the span of B is :-5～5, the span of C is :-10～10 ℃;
Δ TwF is the correction according to the building loading characteristic, and this correction is with the building loading characteristic variations; The a certain period of building is when being lower than conventional value to the indoor temperature demand, and this correction is for negative, and when being higher than the routine value, correction is for just; Δ TwF formulates concrete correction value according to the concrete part throttle characteristics of different buildings in the different functions period, and this correction value is a certain constant, and scope is :-80～20 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105792530A CN102012065B (en) | 2010-11-26 | 2010-11-26 | Heating system heat metering and heat energy-saving control method and special device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105792530A CN102012065B (en) | 2010-11-26 | 2010-11-26 | Heating system heat metering and heat energy-saving control method and special device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102012065A CN102012065A (en) | 2011-04-13 |
| CN102012065B true CN102012065B (en) | 2012-11-28 |
Family
ID=43842330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105792530A Active CN102012065B (en) | 2010-11-26 | 2010-11-26 | Heating system heat metering and heat energy-saving control method and special device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102012065B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102645A (en) * | 2019-12-18 | 2020-05-05 | 中节能唯绿（北京）科技股份有限公司 | Heat balance control method for central heating system |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102927619A (en) * | 2011-08-09 | 2013-02-13 | 牟端 | Regional heat supply and household metering regulating and controlling station and regulating and controlling method thereof |
| CN102878611B (en) * | 2012-11-05 | 2014-08-13 | 北京大龙供热中心 | Heating pipe network fine regulation system and method |
| CN104048347B (en) * | 2014-07-01 | 2017-09-19 | 赵爱国 | Wisdom heat supply network integrated system and its control method |
| CN104633766B (en) * | 2015-02-09 | 2017-04-19 | 清华大学 | Regulation method and device for reducing return water temperature of heating system |
| CN108180574B (en) * | 2017-12-12 | 2020-06-26 | 湖北益通建设股份有限公司 | Heat pump air conditioner charging method and device |
| CN108019883B (en) * | 2017-12-12 | 2020-06-26 | 湖北益通建设股份有限公司 | Expense balance calculation method and device based on customer preset |
| CN108036401B (en) * | 2017-12-12 | 2020-06-26 | 湖北益通建设股份有限公司 | Intelligent charging method and device |
| CN109631150A (en) * | 2018-12-19 | 2019-04-16 | 天津宏达瑞信科技有限公司 | A kind of accurate heat supply method of temperature based on secondary network, pressure and user's room temperature |
| CN109764396A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of control method and control device of energy resource system |
| CN109764398A (en) * | 2019-01-09 | 2019-05-17 | 青岛海尔空调器有限总公司 | A kind of control method and control device of energy resource system |
| CN110118382B (en) * | 2019-04-15 | 2020-12-29 | 天津大学 | General operation regulation strategy identification and evaluation method for heat exchange station |
| CN110513931B (en) * | 2019-09-19 | 2021-04-23 | 四川虹美智能科技有限公司 | Method and device for determining target value of return water temperature of air source heat pump |
| CN112669529B (en) * | 2020-12-04 | 2021-12-17 | 陕西启迪瑞行清洁能源研究院有限公司 | Multi-stage grade heat energy charging device |
| CN112781430B (en) * | 2020-12-31 | 2022-11-15 | 中国石油集团工程股份有限公司 | Method for controlling heat exchanger, storage medium and electronic device |
| CN113446661B (en) * | 2021-07-30 | 2022-08-30 | 西安热工研究院有限公司 | Intelligent and efficient heat supply network operation adjusting method |
| CN113701234A (en) * | 2021-08-31 | 2021-11-26 | 哈尔滨天达控制股份有限公司 | Intelligent control method, device and system for heat supply secondary network |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645002A (en) * | 2003-10-10 | 2005-07-27 | 马环宇 | Heating method and system with double circulating and metering |
| CN2886393Y (en) * | 2006-03-31 | 2007-04-04 | 包头市爱能控制工程有限责任公司 | Intelligent heat exchange unit |
| CN201255460Y (en) * | 2008-05-13 | 2009-06-10 | 舒保中 | Constant temperature water mixing retention control energy-conserving heating device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182209A (en) * | 1997-10-22 | 1998-05-20 | 张正本 | Separated measuring method for hot-water heating system |
| NL1025309C2 (en) * | 2004-01-23 | 2005-07-26 | Nedap Nv | System for independently controlling the temperatures in different rooms and the temperatures of one or more hot water boilers. |
| CN1892197A (en) * | 2006-05-26 | 2007-01-10 | 王志军 | Exchanging-type individual power-supply metering system |
| CN201892880U (en) * | 2010-11-26 | 2011-07-06 | 东方电子集团有限公司 | Heat metering and energy-saving control device for heat supply system |
-
2010
- 2010-11-26 CN CN2010105792530A patent/CN102012065B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645002A (en) * | 2003-10-10 | 2005-07-27 | 马环宇 | Heating method and system with double circulating and metering |
| CN2886393Y (en) * | 2006-03-31 | 2007-04-04 | 包头市爱能控制工程有限责任公司 | Intelligent heat exchange unit |
| CN201255460Y (en) * | 2008-05-13 | 2009-06-10 | 舒保中 | Constant temperature water mixing retention control energy-conserving heating device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111102645A (en) * | 2019-12-18 | 2020-05-05 | 中节能唯绿（北京）科技股份有限公司 | Heat balance control method for central heating system |
| CN111102645B (en) * | 2019-12-18 | 2021-06-08 | 中节能唯绿（北京）科技股份有限公司 | Heat balance control method for central heating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102012065A (en) | 2011-04-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102012065B (en) | Heating system heat metering and heat energy-saving control method and special device thereof | |
| CN102721104B (en) | Central heating system supply water temperature weather compensation control method | |
| CN103363585A (en) | Regulating method of center heating system in urban area | |
| CN105953304A (en) | Public building heat supply energy-saving control device | |
| CN107274303A (en) | City heat supply energy consumption wisdom management and control technology platform | |
| CN101949559A (en) | Intelligent energy-saving mixed water heat supply method | |
| CN104832976A (en) | Climate compensation apparatus for temperature control valve of heat exchange station | |
| CN201892880U (en) | Heat metering and energy-saving control device for heat supply system | |
| CN103471171A (en) | Centralized heating quality adjustment intelligent control system and method | |
| CN109948824A (en) | A method of thermal substation thermic load is predicted using mode identification technology | |
| CN103148594B (en) | Direct-heating air energy water heater PID thermostatic control control system | |
| CN201100704Y (en) | Intelligent controlled energy-saving heat supply system | |
| CN111550932B (en) | Heating water control method, processor and water storage type water heater | |
| CN104791902A (en) | Intelligent control system for EMC pipe network | |
| CN108800303B (en) | Refined energy-saving heat supply method based on pattern recognition | |
| CN111102646A (en) | Intelligent climate compensation method and device based on data driving | |
| CN201262443Y (en) | Climate compensating system by heat supply of boiler | |
| CN114484556B (en) | Water supply temperature regulation and control method based on target energy consumption management and control | |
| CN104499486A (en) | Optimal regulation system applicable to water feeding for concrete dam in middle and later periods | |
| CN107218641A (en) | Radiant floor heating system and its method of work, heat Calculation method based on energy substitution technology | |
| CN102620347B (en) | Control method for heating circulation pump compensated by using solar radiation | |
| CN201852182U (en) | Energy-saving control system for building one-pipe serial connection heat supply | |
| WO2013040731A1 (en) | Solar water heating system for tropical region | |
| CN102927619A (en) | Regional heat supply and household metering regulating and controlling station and regulating and controlling method thereof | |
| US11713887B2 (en) | Heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170407 Address after: 264003 Shandong city of Yantai province high tech Zone haixing Road No. 28 Patentee after: Yantai Dongfang Intelligent Control Co., Ltd. Address before: 264000 Airport Road, Zhifu, Shandong, No. 2, No. Patentee before: Orient Electronic Group Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220302 Address after: 264000 No. 45 Shifu Street, Zhifu District, Yantai City, Shandong Province Patentee after: ORIENT ELECTRONIC GROUP Co.,Ltd. Address before: 264003 No.28 Haixing Road, hi tech Zone, Yantai City, Shandong Province Patentee before: Yantai Dongfang Intelligent Control Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220424 Address after: No.6, Jindu Road, Laishan District, Yantai City, Shandong Province Patentee after: Yantai Oriental Intelligent Technology Co.,Ltd. Address before: 264000 No. 45 Shifu Street, Zhifu District, Yantai City, Shandong Province Patentee before: ORIENT ELECTRONIC GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right |