CN101936575A - Indirectly connected heat exchange station system - Google Patents
Indirectly connected heat exchange station system Download PDFInfo
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- CN101936575A CN101936575A CN 201010281285 CN201010281285A CN101936575A CN 101936575 A CN101936575 A CN 101936575A CN 201010281285 CN201010281285 CN 201010281285 CN 201010281285 A CN201010281285 A CN 201010281285A CN 101936575 A CN101936575 A CN 101936575A
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Abstract
The invention relates to an indirectly connected heat exchange station system, used for central heating, belonging to the heating field. The invention comprises a heat exchanger primary side system, a heat exchanger secondary side circulating system, wherein a thermocouple bypass pipe is arranged between the secondary side water supply pipeline and the water returning pipeline in the heat exchanger secondary side circulating system, an inner circulation loop booster pump is arranged between the thermocouple bypass pipe and the heat exchanger secondary side, and an outer circulation loop booster pump is arranged between the thermocouple bypass pipe and a secondary network user system. In the invention, heat exchange process between the heat exchanger secondary side and a primary network is thoroughly separated from the heat supply circulation of secondary network user. High difference small flow circulation mode is adopted between the thermocouple bypass pipe and the heat exchanger secondary side, and flow resistance loss of thermo medium in the heat exchanger secondary side is greatly reduced, thus power consumption of the secondary network for heat supply and transmission is obviously reduced. Meanwhile the capacities of the heat exchanger and the booster pump and the aperture of pipe fitting of secondary side connecting pipeline are greatly reduced, and initial investment of equipment is reduced.
Description
Technical field
The present invention relates to a kind of indirect connection heat exchange station system, be used for central heating, belong to field of heating.
Technical background
Continuous development along with city size, the concentrated supply of heating in the city area constantly increases, because the difference of the topographical elevation difference that exists in the system, (that floor panel heating or radiator heating, floor panel heating heat supply temperature require radiating mode is low, have a narrow range of temperature, circular flow is relatively large; The radiator heating heat supply temperature requires high, and the temperature difference is big, and circular flow is less relatively) difference, simultaneously for the ease of the concentrated adjusting and the dehydration control of system, indirect connection heat exchange station system has appearred in the central heating system in a large number.
The advantage that connects the heat exchange station system indirectly:
1, once net circulation in the heating system and separate fully with the circulation of secondary net, first and second net pressure is independent of each other;
2, primary side and secondary side system all adopt independent moisturizing, and the security of operation that can not influence the opposite side system appears revealing in which side system;
3, secondary side is provided with circulating pump separately and provides power for secondary net heat delivery, and secondary net circulation is not subjected to the influence of once netting.
But, present indirect connection heat exchange station system ubiquity some problems: the one, once after net and the heat exchange of heat exchanger secondary side, heat is carried to heat supply user by heat exchanger secondary side circulating pump pressurization back, but because the resistance of heat exchanger own is bigger, when the whole circular flows process of secondary net heat exchanger, can produce very big drag losses, account for 30% of secondary net heat delivery total energy consumption greatly, thereby cause heat-exchange system secondary side circulating consumption very big.The 2nd, if one connects the heat supply user and the different heat supply user of radiating mode (floor panel heating or radiator heating) that exists drag losses to differ greatly in the heat exchange station indirectly, heat exchange station must be provided with heat transmission equipment separately according to the actual conditions of heat supply user.Occur in a heat exchange station simultaneously having overlap heat exchange systems through regular meeting more, cause equipment to repeat to be provided with, system's very complicated, initial investment is bigger.
Summary of the invention
The object of the present invention is to provide a kind of advantage that can give full play to indirect connection heat exchange station system, can significantly reduce system's first stage of construction investment again, reduce the indirect connection heat exchange station system of heat-exchange system secondary side heat delivery energy consumption significantly.
Technical solution: the present invention includes heat exchanger primary side system, the heat exchanger secondary side circulatory system, in the heat exchanger secondary side circulatory system, be provided with the thermocouple bypass pipe between heat exchanger secondary side supply channel and the water return pipeline, closed circuit force (forcing) pump in being provided with between thermocouple bypass pipe and the heat exchanger secondary side is provided with outer circulation loop force (forcing) pump between thermocouple bypass pipe and the secondary network users system.
The present invention connects the heat exchange station system indirectly, comprise: heat exchanger primary side system, the heat exchanger secondary side circulatory system, closed circuit force (forcing) pump in being provided with between thermocouple bypass pipe and the heat exchanger secondary side in the heat exchanger secondary side circulatory system, be equipped with the thermocouple bypass pipe between the supply channel of each local loop system and the water return pipeline in the heat exchanger secondary side circulatory system, be provided with outer circulation loop force (forcing) pump between each thermocouple bypass pipe and the corresponding secondary network users system.
The present invention is provided with block valve in order to realize exempting from the purpose of disassembly, cleaning heat exchanger secondary side between thermocouple bypass pipe and secondary network users system; The supply channel adjacent with the heat exchanger secondary side, and the water return pipeline adjacent with the heat exchanger secondary side is equipped with the blowdown control valve; The pipeline adjacent with interior closed circuit force (forcing) pump inlet is provided with the injection control valve.
Feature of the present invention is mainly reflected in three aspects:
1, the present invention is owing to connect in the heat exchange station system indirectly existing, the thermocouple bypass pipe is set between heat exchanger secondary side water supply line and water return pipeline, closed circuit force (forcing) pump in the heat exchanger is set between heat exchanger secondary side and thermocouple bypass pipe, outer circulation loop force (forcing) pump is set between secondary network users system and the thermocouple bypass pipe, with heat exchanger secondary side and the heat transfer process of once netting, thoroughly separate with the heat delivery of secondary network users, the heat exchanger secondary side is during with net heat exchange once, can not consider secondary side user's heat supply temperature requirement, adopt the big temperature difference, the low discharge endless form, thereby make heat exchanger, the pipeline pipe fitting bore that the capacity of force (forcing) pump is connected with secondary side reduces greatly, not only reduced the first stage of construction investment, and the drag losses that thermal medium flows reduces significantly in the heat exchanger secondary side.
2, another program of the present invention is to be equipped with the thermocouple bypass pipe between the supply channel of each local loop system and water return pipeline, be provided with between heat exchanger secondary side system and each the loop thermocouple bypass pipe total in the closed circuit force (forcing) pump, be equipped with outer circulation loop force (forcing) pump between each thermocouple bypass pipe and the corresponding secondary network users system.During the heat supply user that exists drag losses to differ greatly for the secondary net heat supply user different with radiating mode (floor panel heating or radiator heating), interior closed circuit can only use a set of equipment, only the heat supply running technical conditions that suitable outer circulation loop force (forcing) pump just can satisfy this loop user need be installed in the custom system of different loops.Thereby saved the quantity that is provided with of heat exchanger, not only saved the space, also greatly reduced cost of investment.
3, closed circuit adopts low discharge, the big temperature difference method of operation in the present invention, can reduce the operation energy consumption of closed circuit force (forcing) pump in the heat exchanger that is provided with between heat exchanger secondary side and the bypass pipe greatly.Secondary network users system can be provided with the force (forcing) pump operation of outer circulation loop separately according to the loop characteristics simultaneously, each loop hydraulic equilibrium is very easy to realize, avoided traditional secondary network users system to carry out hydraulic equilibrium by controlling opening of valve, and the energy loss that brings, so the conveying energy consumption of the secondary side heat of the technical program is starkly lower than traditional central heating and connects the heat exchange station system indirectly.Estimate that the entire system power saving rate is 15-20%.
4, the present invention is provided with block valve between thermocouple bypass pipe and secondary network users system, the supply channel adjacent with the heat exchanger secondary side, and the water return pipeline adjacent with the heat exchanger secondary side is equipped with the blowdown control valve; The pipeline adjacent with interior closed circuit force (forcing) pump inlet is provided with the injection control valve.When closing block valve, interior closed circuit still can move, utilize this characteristics, cooperate the operation of injection control valve and blowdown control valve, that can realize the heat exchanger secondary side exempts to dismantle wash cycles, thereby the infringement of having avoided frequent dismounting heat exchanger that equipment is caused also greatly reduces the labour intensity that cleans heat exchanger work.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the another embodiment of the present invention structural representation.
Symbol among the figure: 1-heat exchanger primary side; 2-heat exchanger secondary side; Closed circuit force (forcing) pump in the 3-; The hot coupling bypass pipe of 4-; The hot coupling bypass pipe of 4a-1# (floor panel heating user); The hot coupling bypass pipe of 4b-2# (radiator heating user); The hot coupling bypass pipe of 4c-3# (the radiator heating user that SR is bigger); 5-outer circulation loop force (forcing) pump; 5a-1# loop outer circulation loop force (forcing) pump (floor panel heating user); 5b-2# loop outer circulation loop force (forcing) pump (radiator heating user); 5c-3# loop outer circulation loop force (forcing) pump (the radiator heating user that SR is bigger); 6-secondary network users; 6a-1# secondary network users (floor panel heating user); 6b-2# secondary network users (radiator heating user); 6c-3# secondary network users (the radiator heating user that SR is bigger); 7-secondary network users system supplies, the backwater block valve; 7a-1# secondary network users system supplies, backwater block valve (floor panel heating user); 7b-2# secondary network users system supplies, backwater block valve (radiator heating user); 7c-3# secondary network users system supplies, backwater block valve (the radiator heating user that SR is bigger); 8-heat exchanger secondary side blowdown control valve; 9-injection control valve.
The specific embodiment
Below in conjunction with concrete example, the specific embodiment of the present invention is described.
Embodiment 1: as shown in Figure 1, system comprises heat exchanger primary side 1, heat exchanger primary side 2, interior closed circuit force (forcing) pump 3, thermocouple bypass pipe 4, outer circulation loop force (forcing) pump 5, secondary network users 6 and connecting line and pipe fitting.
Interior recycle loop water enters thermocouple bypass pipe 4 after being heated in heat exchanger secondary side 2, carry out mixed heat transfer with the backwater of secondary network users 6, and after the cooling, closed circuit force (forcing) pump 3 boosts in entering, and enters heat exchanger secondary side 2 again and is heated again.The backwater of secondary network users 6 in thermocouple bypass pipe 4, mix after the hot intensification, enter outer circulation loop force (forcing) pump 5 and boost, enter 6 heat radiations of secondary network users again, get back to thermocouple bypass pipe 4 behind the radiating and cooling.Finish the cycle heat exchange process.
As can be seen, heat exchanger heat transfer process in the interior closed circuit, irrelevant with the character and the heat-supplying mode of outer circulation loop heat supply user, therefore, interior closed circuit can improve heat transfer temperature difference, reduce circular flow, thereby reduce the drag losses of heat exchanger secondary side 2, reduce the conveying energy consumption in the secondary net heat supplying process.
Suppose that heat exchanger primary side 1 heat supply temperature is 130/70 ℃, 60 ℃ of the temperature difference, secondary network users 6 heat supply temperatures are 70/50 ℃ of radiator heating user, 20 ℃ of the temperature difference.According to technical scheme shown in Figure 1, guaranteeing that heat exchanger primary side 1 provides under the situation of adequate heat, closed circuit is selected suitable interior closed circuit force (forcing) pump 3 technical parameters in the heat exchanger secondary side 2, provide rational circular flow can make heat exchanger secondary side 2 heat transfer temperature differences also reach 60 ℃, i.e. heat exchange temperature is 110/50 ℃.
Mixed heat transfer is carried out by thermocouple bypass pipe 4 in interior closed circuit and outer circulation loop.
For the outer circulation loop, in order to reach the heat supply temperature that secondary network users 6 requires, can be arranged on the circular flow of the outer circulation loop force (forcing) pump 5 between secondary network users 6 and the thermocouple bypass pipe 4 by adjusting, make the actual motion temperature of secondary network users 6 reach 70/50 ℃, 20 ℃ of the temperature difference.According to the energy conservation principle, the circular flow of the interior closed circuit of this moment only reaches 1/3 of outer circulation circuit cycle flow, and the resistance that therefore is lost in heat exchanger secondary side 2 front and back is very little, has realized reducing the purpose of operation energy consumption.
Embodiment 2: as shown in Figure 2, system comprises heat exchanger primary side 1, heat exchanger secondary side 2, interior closed circuit force (forcing) pump 3,4a is the hot coupling bypass pipe of 1# (floor panel heating user), 4b is the hot coupling bypass pipe of 2# (radiator heating user), 4c is the hot coupling bypass pipe of 3# (the radiator heating user that SR is bigger), 5a 1# loop outer circulation loop force (forcing) pump (floor panel heating user), 5b is a 2# loop outer circulation loop force (forcing) pump (radiator heating user), 5c is a 3# loop outer circulation loop force (forcing) pump (the radiator heating user that SR is bigger), 6a is 1# secondary network users (floor panel heating user), 6b is 2# secondary network users (radiator heating user), 6c is 3# secondary network users (the radiator heating user that SR is bigger), and other pipelines and pipe fitting.
Interior recycle loop water backwater is after heat exchanger secondary side 2 is heated, enter 1# thermocouple bypass pipe (floor panel heating user) 4a, 2# thermocouple bypass pipe (radiator heating user) 4b, 3# thermocouple bypass pipe (the radiator heating user that SR is bigger) 4c, carry out mixed heat transfer with the backwater of 1# secondary network users 6a, the backwater of 2# secondary network users 6b, the backwater of 3# secondary network users 6c respectively, after the cooling, closed circuit force (forcing) pump 3 boosts in entering, and enters heat exchanger secondary side 2 again and is heated again.
The backwater of 1# secondary network users 6a is in 1# thermocouple bypass pipe 4a, and mixing enters 1# outer circulation loop force (forcing) pump 5a and boosts after heating up, and enters 1# secondary network users 6a heat radiation again, finishes 1# outer circulation loop heat transfer process.
The backwater of 2# secondary network users 6b is in 2# thermocouple bypass pipe 4b, and mixing enters 2# outer circulation loop force (forcing) pump 5b and boosts after heating up, and enters 2# secondary network users 6b heat radiation again, finishes 2# outer circulation loop heat transfer process.
The backwater of 3# secondary network users 6c is in 3# thermocouple bypass pipe 4c, and mixing enters 3# outer circulation loop force (forcing) pump 5c and boosts after heating up, and enters 3# secondary network users 6c heat radiation again, finishes 3# outer circulation loop heat transfer process.
As can be seen, the heating character that the outer circulation loop can be different according to secondary network users loop is determined the quantity of circulating water of each self loop, thereby is realized that heating parameter does not disturb mutually between each local loop.And, no matter how many loop users the outer circulation loop has, heating character has any difference, and is all irrelevant with the heat transfer temperature difference of interior closed circuit, can adopt same set of heat exchanger and interior closed circuit force (forcing) pump to carry out the heat exchange circulation of heat exchanger secondary side, thereby greatly reduce the initial investment of equipment.
For the situation that has big resistance difference between the secondary network users, according to technical scheme provided by the invention, just can satisfy the operation needs as long as improve the outer circulation loop force (forcing) pump lift of the bigger custom system of resistance separately, need not by turning the little local loop valve opening of resistance down, artificially increase resistance and realize hydraulic equilibrium.Therefore, have more energy-saving potential.
Suppose that heat exchanger primary side 1 heat supply temperature is 130/70 ℃, 60 ℃ of the temperature difference, 1# secondary network users 6a heat supply temperature is 60/50 ℃ of floor heating heating user, 10 ℃ of the temperature difference; The hot temperature of 2# secondary network users 6b is 70/50 ℃ of radiator heating user, 20 ℃ of the temperature difference; The hot temperature of 3# secondary network users 6c is 70/50 ℃ of radiator heating user, 20 ℃ of the temperature difference, but SR is bigger.1#, 2#, 3# secondary network users heating demand are identical.
According to technical scheme shown in Figure 2, after interior recycle loop water is heated in heat exchanger secondary side 2, enter 1# thermocouple bypass pipe (floor panel heating user) 4a, 2# thermocouple bypass pipe (radiator heating user) 4b, 3# thermocouple bypass pipe (the radiator heating user that SR is bigger) 4c respectively, carry out mixed heat transfer with 1# secondary network users 6a backwater, 2# secondary network users 6b backwater, 3# secondary network users 6c backwater respectively, after the cooling, closed circuit force (forcing) pump 3 boosts in entering, and enters heat exchanger secondary side 2 again and is heated again.Closed circuit rationally provides circular flow can make heat exchanger secondary side 2 heat transfer temperature differences also can reach 60 ℃ by the technical parameter of closed circuit force (forcing) pump 3 in selecting in the hot device secondary side 2, i.e. heat exchange temperature is 110/50 ℃.
1# secondary network users is the floor panel heating user, requires heat supply to have a narrow range of temperature, and only needs to increase 1# outer circulation loop force (forcing) pump 5a operation flow, just can reach the heat supply running requirement.
2# secondary network users is the radiator heating user, requires the heat supply temperature difference bigger, only 2# outer circulation loop force (forcing) pump 5b operation flow need be adjusted to zone of reasonableness and just can reach the heat supply running requirement.
3# secondary network users is the radiator heating user, and SR is bigger, force (forcing) pump 5c rated lift corresponding raising in 3# outer circulation loop just can need be reached the heat supply running requirement.
And the actual heat transfer temperature difference of above-mentioned secondary network users heat supply running and interior closed circuit does not have direct relation, therefore heat exchanger primary side 1, heat exchanger secondary side 2 and interior closed circuit force (forcing) pump 3 can once be used same set of equipment, greatly reduce the initial investment of equipment.
Embodiment 3: in Fig. 1, close the confession of secondary network users system, backwater block valve 7, open injection control valve 9 inside closed circuits and add heat exchanger scale removal medicament, closed circuit force (forcing) pump 3 in starting, by soup in ducted circulation, guarantee that scale remover fully carries out chemical reaction with dirt in heat exchanger secondary side 2, dirt in the heat exchanger secondary side 2 is dissolved fully, open heat exchanger secondary side blowdown control valve 8 and carry out blowdown, the dirt that dissolves is got rid of heat exchanger, thus realize heat exchanger exempt to dismantle wash cycles.
In Fig. 2, close 1#, 2#, the confession of 3# secondary network users system, backwater block valve 7a, 7b, 7c, open injection control valve 9 inside closed circuits and add heat exchanger scale removal medicament, closed circuit force (forcing) pump 3 in starting, by circulating at pipeline by soup, guarantee that scale remover fully carries out chemical reaction with dirt in heat exchanger secondary side 2, dirt in the heat exchanger secondary side 2 is dissolved fully, open heat exchanger secondary side blowdown control valve 8 and carry out blowdown, the dirt that dissolves is got rid of heat exchanger, thus realize heat exchanger exempt to dismantle wash cycles.
This cleaning method has been avoided frequent dismounting heat exchanger, has not only reduced the infringement that equipment is caused, and can greatly reduce the labour intensity that cleans heat exchanger work again.
Claims (4)
1. connect the heat exchange station system indirectly, comprise: heat exchanger primary side system, the heat exchanger secondary side circulatory system, it is characterized in that, be provided with the thermocouple bypass pipe between heat exchanger secondary side supply channel and the water return pipeline in the heat exchanger secondary side circulatory system, closed circuit force (forcing) pump in being provided with between thermocouple bypass pipe and the heat exchanger secondary side is provided with outer circulation loop force (forcing) pump between thermocouple bypass pipe and the secondary network users system.
2. connect the heat exchange station system indirectly, comprise: heat exchanger primary side system, the heat exchanger secondary side circulatory system, it is characterized in that, closed circuit force (forcing) pump in being provided with between thermocouple bypass pipe and the heat exchanger secondary side in the heat exchanger secondary side circulatory system, be equipped with the thermocouple bypass pipe between the supply channel of each local loop system and the water return pipeline in the heat exchanger secondary side circulatory system, be provided with outer circulation loop force (forcing) pump between each thermocouple bypass pipe and the corresponding secondary network users system.
3. indirect connection heat exchange station according to claim 1 and 2 system is characterized in that, is provided with block valve between thermocouple bypass pipe and the secondary network users system.
4. indirect connection heat exchange station according to claim 3 system is characterized in that, the supply channel adjacent with the heat exchanger secondary side, and the water return pipeline adjacent with the heat exchanger secondary side is equipped with the blowdown control valve; The pipeline adjacent with interior closed circuit force (forcing) pump inlet is provided with the injection control valve.
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| CN 201010281285 CN101936575A (en) | 2010-09-03 | 2010-09-03 | Indirectly connected heat exchange station system |
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| CN 201010281285 CN101936575A (en) | 2010-09-03 | 2010-09-03 | Indirectly connected heat exchange station system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398408A (en) * | 2013-07-25 | 2013-11-20 | 薛铭 | Negative-pressure water mixing and heating secondary heat exchange unit |
| CN103528110A (en) * | 2013-10-12 | 2014-01-22 | 新疆明和节能科技有限公司 | Heat supply system for community |
| CN105299727A (en) * | 2015-10-28 | 2016-02-03 | 宁波市哈雷换热设备有限公司 | Domestic heating system |
| CN105757758A (en) * | 2016-04-08 | 2016-07-13 | 华电电力科学研究院 | Thermal power plant heat network energy saving system and method |
| CN107655057A (en) * | 2017-09-07 | 2018-02-02 | 华电电力科学研究院 | Integrally coordinate heating system and control method in net source |
| CN109028250A (en) * | 2018-07-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating pipeline, heating system and control method |
| CN110017387A (en) * | 2018-01-10 | 2019-07-16 | 厦门松霖科技股份有限公司 | The faucet of Ozone Water can be gone out |
| CN110908413A (en) * | 2018-09-14 | 2020-03-24 | 开利公司 | Temperature controller, master controller, temperature adjusting system and control method thereof |
| CN113432371A (en) * | 2021-07-08 | 2021-09-24 | 中亘节能科技有限公司 | Whole vehicle thermal management system and method for shield machine |
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| CN1773175A (en) * | 2004-11-08 | 2006-05-17 | 何学新 | Energy-saving heat exchanging station or assembling unit and control method thereof |
| CN201779771U (en) * | 2010-09-03 | 2011-03-30 | 周浩 | Indirectly connected heat exchange station system |
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- 2010-09-03 CN CN 201010281285 patent/CN101936575A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1773175A (en) * | 2004-11-08 | 2006-05-17 | 何学新 | Energy-saving heat exchanging station or assembling unit and control method thereof |
| CN201779771U (en) * | 2010-09-03 | 2011-03-30 | 周浩 | Indirectly connected heat exchange station system |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398408A (en) * | 2013-07-25 | 2013-11-20 | 薛铭 | Negative-pressure water mixing and heating secondary heat exchange unit |
| CN103528110A (en) * | 2013-10-12 | 2014-01-22 | 新疆明和节能科技有限公司 | Heat supply system for community |
| CN105299727A (en) * | 2015-10-28 | 2016-02-03 | 宁波市哈雷换热设备有限公司 | Domestic heating system |
| CN105757758A (en) * | 2016-04-08 | 2016-07-13 | 华电电力科学研究院 | Thermal power plant heat network energy saving system and method |
| CN107655057A (en) * | 2017-09-07 | 2018-02-02 | 华电电力科学研究院 | Integrally coordinate heating system and control method in net source |
| CN107655057B (en) * | 2017-09-07 | 2023-04-18 | 华电电力科学研究院有限公司 | Network-source integrated coordinated heating system and control method |
| CN110017387A (en) * | 2018-01-10 | 2019-07-16 | 厦门松霖科技股份有限公司 | The faucet of Ozone Water can be gone out |
| CN110017387B (en) * | 2018-01-10 | 2024-04-05 | 漳州松霖智能家居有限公司 | Tap capable of discharging ozone water |
| CN109028250A (en) * | 2018-07-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating pipeline, heating system and control method |
| CN109028250B (en) * | 2018-07-13 | 2023-10-31 | 珠海格力电器股份有限公司 | Control method for controlling operation of heating system |
| CN110908413A (en) * | 2018-09-14 | 2020-03-24 | 开利公司 | Temperature controller, master controller, temperature adjusting system and control method thereof |
| CN110908413B (en) * | 2018-09-14 | 2022-07-15 | 开利公司 | Temperature controller, master controller, temperature adjusting system and control method thereof |
| CN113432371A (en) * | 2021-07-08 | 2021-09-24 | 中亘节能科技有限公司 | Whole vehicle thermal management system and method for shield machine |
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Application publication date: 20110105 |