CN204301034U - A kind of Steam Generators in NPP blowdown heat recovery system - Google Patents
A kind of Steam Generators in NPP blowdown heat recovery system Download PDFInfo
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- CN204301034U CN204301034U CN201420589869.XU CN201420589869U CN204301034U CN 204301034 U CN204301034 U CN 204301034U CN 201420589869 U CN201420589869 U CN 201420589869U CN 204301034 U CN204301034 U CN 204301034U
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Abstract
The utility model discloses a kind of Steam Generators in NPP blowdown heat recovery system, for the technical problem that the heat utilization ratio solving steam generator blowdown water in prior art is low, described system comprises: the blowdown exchanger (20) for sewerage heat energy being passed to heat-carrying agent be connected with steam generator by blow-off line (10); By the heat reclamation device (30) for recycling the heat of the heat-carrying agent in heat transfer pipe (11) that heat transfer pipe (11) is communicated with blowdown exchanger (20); Be arranged on heat transfer pipe (11) for when needed the heat-carrying agent in heat transfer pipe (11) being diverted to the part flow arrangement (40) of heat transfer pipe (12); By the heat reclamation device (50) for recycling the heat of the heat-carrying agent being diverted to heat transfer pipe (12) that heat transfer pipe (12) is connected with part flow arrangement (40).
Description
Technical field
The utility model relates to technical field of nuclear power, particularly relates to a kind of Steam Generators in NPP blowdown heat recovery system.
Background technology
In nuclear power generating sets, primary Ioops heat to be passed to the secondary circuit water in steam generator by primary Ioops water by heat trnasfer, is converted into the generating of Steam Actuation steam turbine generator to make secondary circuit water.Primary Ioops system pipeline and secondary coolant circuit system pipeline cross at steam generator place; But, at the connecting portion, position, flow dead etc. of the tube sheet upper surface of steam generator, pipe and tube sheet, be easy to the continuous evaporation due to water, and cause gathering of impurity (being mainly salt).Impurity can make the stress corrosion at these positions aggravate, and causes primary Ioops to the leakage of secondary side or breaking of heat-transfer pipe, finally causes reactor to be closed down, causes radioactive pollution and economic loss; Therefore, in order to improve the condition of work of steam generator, extend the service life of steam generator, the water quality keeping steam generator secondary side good is vital.Prove after deliberation: be in operation, the strict water quality controlling steam generator secondary side has very large relation with its blowdown flow rate of increasing to the prolongation steam generator life-span, for this reason, devises steam generator blowdown system.
The heat entrained by sewage that steam generator blowdown system is discharged is appreciable, at present, in order to the heat of sewage steam generator blowdown system can discharged is recycled, in existing nuclear power technology, the sewer heat delivery of steam generator is toward oxygen-eliminating device, concrete, oxygen-eliminating device is also a kind of heater, the feedwater that it will be passed to as the steam of thermal source or the heat of water through oxygen-eliminating device by the effect of heat trnasfer, when being heated to the saturation temperature under relevant pressure when feeding water, vapor partial pressure power will close to total pressure on the water surface, the partial pressure of various gas soluble in water is close to zero, therefore, water does not just have the ability of dissolved gas, gas soluble in water is just precipitated, thus oxygen in removing water and other gases.Namely the sewerage heat energy that steam generator blowdown system is discharged is used for heated feed water as the thermal source of oxygen-eliminating device.
But the above-mentioned sewerage heat energy by steam generator blowdown system discharge is transported to the mode carrying out in oxygen-eliminating device recycling, and does not make the heat of sewage be effectively utilized.
Utility model content
The embodiment of the present application is by providing a kind of Steam Generators in NPP blowdown heat recovery system, solve the technical problem that the heat recovery and utilization rate of the sewer of steam generator in prior art is low, improve the recovery utilization rate of steam generator blowdown hydro-thermal amount.
The embodiment of the present application provides a kind of Steam Generators in NPP blowdown heat recovery system, and described heat recovery system comprises:
For the blow-off line of the sewage that delivering vapor generator is discharged;
Be connected with described steam generator by described blow-off line, for the heat of described sewage being passed to the blowdown exchanger of heat-carrying agent;
For carrying the first heat transfer pipe and second heat transfer pipe of the heat-carrying agent carrying sewerage heat energy;
Be communicated with described blowdown exchanger by described first heat transfer pipe, for carrying out the first heat reclamation device of recycling to the heat of the heat-carrying agent in described first heat transfer pipe;
Be arranged on described first heat transfer pipe, for when needed the heat-carrying agent in described first heat transfer pipe being diverted to the part flow arrangement in described second heat transfer pipe;
Be connected with described part flow arrangement by described second heat transfer pipe, for carrying out the second heat reclamation device of recycling to the heat of the heat-carrying agent being diverted to described second heat transfer pipe.
Optionally, described heat recovery system also comprises:
Being connected with described part flow arrangement, for controlling described part flow arrangement the heat-carrying agent in described first heat transfer pipe being diverted to the flow division control device of described second heat transfer pipe.
Optionally, described flow division control device body is: the high pressure cylinder of described nuclear power plant;
Wherein, when the pressure signal in described high pressure cylinder shows that described second heat reclamation device is in running order, described high pressure cylinder controls described part flow arrangement and the heat-carrying agent in described first heat transfer pipe is diverted to described second heat transfer pipe.
Optionally, described flow division control device is specially: be connected with described second heat reclamation device, for detecting the flow detector of described second heat reclamation device flow;
Wherein, described flow detector detects the flow signal obtaining described second heat reclamation device; When described flow signal shows that described second heat reclamation device is in running order, described flow detector controls described part flow arrangement and the heat-carrying agent in described first heat transfer pipe is diverted to described second heat transfer pipe.
Optionally, described part flow arrangement is triple valve.
Optionally, described first heat reclamation device is the oxygen-eliminating device of described nuclear power plant; Described second heat reclamation device is No. 4 heaters of described nuclear power plant.
The one or more technical schemes provided in the embodiment of the present application, at least have following technique effect or advantage:
Due in the embodiment of the present application, by arranging part flow arrangement on first heat transfer pipe of steam generator blowdown system towards the first heat reclamation device, and be provided with the second heat transfer pipe be communicated with described part flow arrangement and the second heat reclamation device be connected with described part flow arrangement by described second heat transfer pipe; Wherein, heat-carrying agent in described first heat transfer pipe is diverted in described second heat transfer pipe by described part flow arrangement when needed, carries out recycling to make described second heat reclamation device be communicated with described second heat transfer pipe to the heat of the heat-carrying agent shunted; That is, based on the heat recovery system of the application's scheme, the flow direction being controlled sewerage heat energy by flow division control device can be needed according to practical application, to make two heat reclamation devices, the sewerage heat energy that steam generator is discharged is recycled, efficiently solve the technical problem that the heat recovery and utilization rate of the sewer of steam generator in prior art is low, achieve the technique effect of the recovery utilization rate improving steam generator blowdown hydro-thermal amount.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
A kind of Steam Generators in NPP blowdown heat recovery system architecture schematic diagram that Fig. 1 provides for the embodiment of the present application;
A kind of Steam Generators in NPP blowdown heat recovery system flow-dividing control structural representation that Fig. 2 provides for the embodiment of the present application;
A kind of steam generator blowdown heat recovery system structural representation controlled based on pressure shunt that Fig. 3 provides for the embodiment of the present application;
A kind of steam generator blowdown heat recovery system structural representation controlled based on flow shunt that Fig. 4 provides for the embodiment of the present application;
A kind of steam generator blowdown heat recovery system structural representation based on triple valve flow-dividing control that Fig. 5 provides for the embodiment of the present application;
A kind of steam generator blowdown heat recovery system structural representation based on high pressure cylinder pressure detecting flow-dividing control that Fig. 6 the embodiment of the present application provides;
A kind of steam generator blowdown heat recovery system structural representation based on flow instrumentation flow detection flow-dividing control that Fig. 7 the embodiment of the present application provides.
Detailed description of the invention
The embodiment of the present application is by providing a kind of Steam Generators in NPP blowdown heat recovery system, solve the technical problem that the heat recovery and utilization rate of the sewer of steam generator in prior art is low, improve the recovery utilization rate of steam generator blowdown hydro-thermal amount.
The technical scheme of the embodiment of the present application is for solving the problems of the technologies described above, and general thought is as follows:
The embodiment of the present application provides a kind of Steam Generators in NPP blowdown heat recovery system, and described heat recovery system comprises: for the blow-off line of the sewage that delivering vapor generator is discharged; Be connected with described steam generator by described blow-off line, for the heat of described sewage being passed to the blowdown exchanger of heat-carrying agent; For carrying the first heat transfer pipe and second heat transfer pipe of the heat-carrying agent carrying sewerage heat energy; Be communicated with described blowdown exchanger by described first heat transfer pipe, for carrying out the first heat reclamation device of recycling to the heat of the heat-carrying agent in described first heat transfer pipe; Be arranged on described first heat transfer pipe, for when needed the heat-carrying agent in described first heat transfer pipe being diverted to the part flow arrangement in described second heat transfer pipe; Be connected with described part flow arrangement by described second heat transfer pipe, for carrying out the second heat reclamation device of recycling to the heat of the heat-carrying agent being diverted to described second heat transfer pipe.
Visible, in the embodiment of the present application, by arranging part flow arrangement on first heat transfer pipe of steam generator blowdown system towards the first heat reclamation device, and be provided with the second heat transfer pipe be communicated with described part flow arrangement and the second heat reclamation device be connected with described part flow arrangement by described second heat transfer pipe; Wherein, heat-carrying agent in described first heat transfer pipe is diverted in described second heat transfer pipe by described part flow arrangement when needed, carries out recycling to make described second heat reclamation device be communicated with described second heat transfer pipe to the heat of the heat-carrying agent shunted; That is, based on the heat recovery system of the application's scheme, the flow direction being controlled sewerage heat energy by flow division control device can be needed according to practical application, to make two heat reclamation devices, the sewerage heat energy that steam generator is discharged is recycled, efficiently solve the technical problem that the heat recovery and utilization rate of the sewer of steam generator in prior art is low, achieve the technique effect of the recovery utilization rate improving steam generator blowdown hydro-thermal amount.
In order to better understand technique scheme, below in conjunction with Figure of description and concrete embodiment, technique scheme is described in detail, the specific features being to be understood that in the embodiment of the present application and embodiment is the detailed description to technical scheme, instead of the restriction to technical scheme, when not conflicting, the technical characteristic in the embodiment of the present application and embodiment can combine mutually.
Embodiment one
Please refer to Fig. 1, the embodiment of the present application provides a kind of Steam Generators in NPP blowdown heat recovery system, and described heat recovery system comprises:
For the blow-off line 10 of the sewage that delivering vapor generator is discharged;
Be connected with described steam generator by blow-off line 10, for the heat of described sewage being passed to the blowdown exchanger 20 of heat-carrying agent;
For carrying the first heat transfer pipe 11 and the second heat transfer pipe 12 of the heat-carrying agent carrying sewerage heat energy;
Be communicated with blowdown exchanger 20 by the first heat transfer pipe 11, for carrying out the first heat reclamation device 30 of recycling to the heat of the heat-carrying agent in the first heat transfer pipe 11;
Be arranged on the first heat transfer pipe 11, for when needed the heat-carrying agent in the first heat transfer pipe 11 being diverted to the part flow arrangement 40 in the second heat transfer pipe 12;
Be connected with part flow arrangement 40 by the second heat transfer pipe 12, for carrying out the second heat reclamation device 50 of recycling to the heat of the heat-carrying agent being diverted to the second heat transfer pipe 12.
Concrete, blowdown exchanger 20 is connected with a water pump by a feedwater piping, obtains low temperature feedwater as heat-carrying agent, with out-of-date at the steam generator blowdown current with high heat, makes the heat of sewer pass to heat-carrying agent; Part flow arrangement 40 is usually when the second heat reclamation device 50 is in running order, and the heat-carrying agent carrying sewerage heat energy of being discharged by blowdown exchanger 20 is diverted to the second heat transfer pipe 12 from the first heat transfer pipe 11; Wherein, according to practical application needs, part flow arrangement 40 can be controlled all or part of heat-carrying agent flowing through the first heat transfer pipe 11 is diverted in the second heat transfer pipe 12; In addition, the design of heat transfer pipe will note insulation, namely needs for heat transfer pipe arranges heat-insulation layer.
In specific implementation process, please refer to Fig. 2, carry out triage operator to effectively control part flow arrangement 40, described heat recovery system also comprises:
Being connected with part flow arrangement 40, for controlling part flow arrangement 40 heat-carrying agent in first heat transfer pipe 11 being diverted to the flow division control device 60 of the second heat transfer pipe 12.
Because whether flow division control device 60 is mainly used in by detecting the second heat reclamation device 50 in running order, and when it is in running order, controlling part flow arrangement 40 and carrying out triage operator.In specific implementation process, whether flow division control device 60 detects the second heat reclamation device 50 by pressure detecting and flow detection two kinds of modes in running order:
(1) pressure detecting mode, as shown in Figure 3, flow division control device 60 is specially: the high pressure cylinder of described nuclear power plant;
Wherein, when the pressure signal in described high pressure cylinder shows that the second heat reclamation device 50 is in running order, described high pressure cylinder controls part flow arrangement 40 and the heat-carrying agent in first heat transfer pipe 11 is diverted to the second heat transfer pipe 12.
(2) flow detection mode, as shown in Figure 4, flow division control device 60 is specially: be connected with the second heat reclamation device 50, for detecting the flow detector of the second heat reclamation device 50 flow;
Wherein, described flow detector detects the flow signal of acquisition second heat reclamation device 50; When described flow signal shows that the second heat reclamation device 50 is in running order, described flow detector controls part flow arrangement 40 and the heat-carrying agent in first heat transfer pipe 11 is diverted to the second heat transfer pipe 12.
In specific implementation process, please refer to Fig. 5, part flow arrangement 40 is triple valve, comprises three ports (port one, port 2 and port 3), and one enters scene 2 (namely port one is water inlet, and port 2 and port 3 are delivery port); Triple valve is arranged on the first heat transfer pipe 11, is divided into the first pipeline section 211 for connecting blowdown exchanger 20 and triple valve port one and is used for the second pipeline section 212 of connecting tee valve port 2 and the first heat reclamation device 30; Second heat transfer pipe 13 connecting tee valve port 3 and the second heat reclamation device 50.
In specific implementation process, the first heat reclamation device 30 is the oxygen-eliminating device of described nuclear power plant; Second heat reclamation device 50 is No. 4 heaters of described nuclear power plant.
Embodiment two
In the present embodiment, will be with the first heat reclamation device 30 oxygen-eliminating device of described nuclear power plant; Second heat reclamation device 50 is No. 4 heaters of described nuclear power plant is example, describes in detail to this programme:
In nuclear power generating sets course of normal operation, the water in steam generator is discharged mainly through two kinds of approach: 1) be converted to steam by heating and discharge, 2) discharged with sewage form by steam generator blowdown system; Simultaneously in order to make the water in steam generator reach balance, condenser in unit constantly can inject feedwater in steam generator, and the feedwater be sent to steam generator from condenser must reach certain temperature requirement, therefore, the pipeline that condenser supplies water to steam generator is provided with one group of heater, described feedwater is heated.
Please refer to Fig. 6, the feedwater that condenser exports is heated through heater (No.1 ~ 7) successively, the feed temperature requirement reaching steam generator to make the feed temperature outputted to steam generator from heater No.7 and normally work; Wherein, water pump (P1, P2) for being pressurize, to make feedwater proper flow in the duct; Heater (No.1 ~ 7) transfers heat to feedwater mainly through the high-temperature steam extracted from steam turbine and realizes feedwater heating; In No. 7 heater of No.1 ~, heater No.5 is also referred to as oxygen-eliminating device (i.e. the first heat reclamation device 30).In the present embodiment, the sewage that steam generator blowdown system 10 is discharged, first lower the temperature through blowdown exchanger 20 and process, concrete, water pump P 1 constantly can be provided for the low temperature feedwater (i.e. described heat-carrying agent) of heat exchange to blowdown exchanger 20, through heat transfer process, sewerage heat energy is transferred on described heat-carrying agent, and the heat-carrying agent after heating is sent in oxygen-eliminating device by the first heat transfer pipe 11 again; The first heat transfer pipe 11 connecting blowdown exchanger 20 and oxygen-eliminating device (i.e. heater No.5) is provided with part flow arrangement 40, is specifically as follows triple valve (the concrete annexation of triple valve and each module is shown in embodiment one); Part flow arrangement 40 is communicated with heater No.4 (i.e. the second heat reclamation device 50) by the second heat transfer pipe 12, the heat-carrying agent that can control to carry steam generator blowdown hydro-thermal amount is diverted to the second heat transfer pipe 12 from the first heat transfer pipe 11, finally flows to heater No.4 and carries out heat recovery and utilization.
Owing to passing through constantly to test proof, in nuclear power plant's secondary circuit therrmodynamic system course of normal operation, the heat-carrying agent carrying steam generator blowdown hydro-thermal amount is all introduced the recuperation of heat utilization rate that heater No.4 can improve steam generator blowdown hydro-thermal amount effectively, introducing other heater can cause utilization rate to reduce, therefore, in the present embodiment, the heat-carrying agent in the first heat transfer pipe 11 is only diverted in heater No.4 by part flow arrangement 40.
Further, in the application's scheme, only need by judging that whether heater No.4 is in running order, and when it is in running order, controls part flow arrangement 40 by flow division control device 60 and the heat-carrying agent with sewerage heat energy is all branched to heater No.4.Please continue to refer to Fig. 6, the vapours that steam generator produces can process through high pressure cylinder, steam-water separator, first order reheater, second level reheater and low pressure (LP) cylinder successively, in this processing procedure, each set modules be connected with low pressure (LP) cylinder with high pressure cylinder, steam-water separator, first order reheater, second level reheater obtains the working media of needs; Finally, the steam exported from low pressure (LP) cylinder is sent to condenser and is condensed into feedwater, to recycle.Wherein, the high pressure cylinder of nuclear power generating sets, can be used as and used by the flow division control device 60 that heat-carrying agent is diverted to the second heat transfer pipe 12 from the first heat transfer pipe 11 for controlling part flow arrangement 40; Wherein, high pressure cylinder is connected with part flow arrangement 40; Concrete, because high pressure cylinder internal pressure signal directly can reflect whether steam turbine is heater (No.1 ~ No.5) steam supply, namely reflect whether heater (No.1 ~ No.5) works; Further, when high pressure cylinder internal pressure signal shows that heater No.4 is in running order, high pressure cylinder, by controlling part flow arrangement 40 conducting second heat transfer pipe 12 with the annexation of part flow arrangement 40, flows in the second heat transfer pipe 12 to make the heat-carrying agent in the first heat transfer pipe 11.
In addition, in specific implementation process, also by having judged whether that heater No.4 is flow through in feedwater, judge that whether heater No.4 is in running order.Concrete, as shown in Figure 7, the feedwater piping of condenser to steam generator arranges flow instrumentation as controlling part flow arrangement 40, the flow division control device 60 that described sewage is diverted to the second heat transfer pipe 12 from the first heat transfer pipe 11 is used, same, flow instrumentation is connected with part flow arrangement 40, for detecting that condenser is when supplying water to steam generator, determine that heater No.4 is in running order, and control part flow arrangement 40 conducting second heat transfer pipe 12, flow in the second heat transfer pipe 12 to make the heat-carrying agent in the first heat transfer pipe 11.Certainly, also the show value of described flow instrumentation is read by staff, and when determining that condenser supplies water to steam generator, by Artificial Control part flow arrangement 40, the heat-carrying agent of discharging from blowdown exchanger 20 is branched to the second heat transfer pipe 12 from the first heat transfer pipe 11.
Generally speaking, by taking the application's scheme, effectively can improve the heat recovery and utilization rate of steam generator blowdown water, be embodied on the steam utilization to steam turbine: take the application's scheme, when heater No.4 is in running order, the heat-carrying agent carrying sewerage heat energy is all introduced in heater No.4, the steam utilization of steam turbine is 35.4484%, compared to existing, the heat-carrying agent carrying sewerage heat energy is all introduced oxygen-eliminating device (steam utilization of steam turbine is 35.43961%), the steam utilization of steam turbine improves 0.00879%, this is very appreciable in nuclear power industry.
In addition, by taking the application's scheme, when unit shutdown (namely heater No.1 ~ 7 do not work), by controlling part flow arrangement 40, the heat-carrying agent that blowdown exchanger 20 exports is entered in heater No.4 ~ 5, to provide enough space to hoard heat-carrying agent.
Although described preferred embodiment of the present utility model, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the utility model scope.
Obviously, those skilled in the art can carry out various change and modification to the utility model and not depart from spirit and scope of the present utility model.Like this, if these amendments of the present utility model and modification belong within the scope of the utility model claim and equivalent technologies thereof, then the utility model is also intended to comprise these change and modification.
Claims (6)
1. a Steam Generators in NPP blowdown heat recovery system, is characterized in that, described heat recovery system comprises:
For the blow-off line (10) of the sewage that delivering vapor generator is discharged;
Be connected with described steam generator by described blow-off line (10), for the heat of described sewage being passed to the blowdown exchanger (20) of heat-carrying agent;
For carrying the first heat transfer pipe (11) and second heat transfer pipe (12) of the heat-carrying agent carrying sewerage heat energy;
Be communicated with described blowdown exchanger (20) by described first heat transfer pipe (11), for carrying out first heat reclamation device (30) of recycling to the heat of the heat-carrying agent in described first heat transfer pipe (11);
Be arranged on described first heat transfer pipe (11), for when needed the heat-carrying agent in described first heat transfer pipe (11) being diverted to the part flow arrangement (40) in described second heat transfer pipe (12);
Be connected with described part flow arrangement (40) by described second heat transfer pipe (12), for carrying out second heat reclamation device (50) of recycling to the heat of the heat-carrying agent being diverted to described second heat transfer pipe (12).
2. heat recovery system as claimed in claim 1, it is characterized in that, described heat recovery system also comprises:
Being connected with described part flow arrangement (40), for controlling described part flow arrangement (40) heat-carrying agent in described first heat transfer pipe (11) being diverted to the flow division control device (60) of described second heat transfer pipe (12).
3. heat recovery system as claimed in claim 2, it is characterized in that, described flow division control device (60) is specially: the high pressure cylinder of described nuclear power plant;
Wherein, when the pressure signal in described high pressure cylinder shows that described second heat reclamation device (50) is in running order, described high pressure cylinder controls described part flow arrangement (40) and the heat-carrying agent in described first heat transfer pipe (11) is diverted to described second heat transfer pipe (12).
4. heat recovery system as claimed in claim 2, it is characterized in that, described flow division control device (60) is specially: be connected with described second heat reclamation device (50), for detecting the flow detector of described second heat reclamation device (50) flow;
Wherein, described flow detector detects the flow signal obtaining described second heat reclamation device (50); When described flow signal shows that described second heat reclamation device (50) is in running order, described flow detector controls described part flow arrangement (40) and the heat-carrying agent in described first heat transfer pipe (11) is diverted to described second heat transfer pipe (12).
5. the heat recovery system as described in Claims 1 to 4, is characterized in that, described part flow arrangement (40) is triple valve.
6. the heat recovery system as described in Claims 1 to 4, is characterized in that, the oxygen-eliminating device that described first heat reclamation device (30) is described nuclear power plant; No. 4 heaters that described second heat reclamation device (50) is described nuclear power plant.
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| CN201420589869.XU CN204301034U (en) | 2014-10-13 | 2014-10-13 | A kind of Steam Generators in NPP blowdown heat recovery system |
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| CN201420589869.XU CN204301034U (en) | 2014-10-13 | 2014-10-13 | A kind of Steam Generators in NPP blowdown heat recovery system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898400A (en) * | 2017-03-27 | 2017-06-27 | 中核核电运行管理有限公司 | The remote region thermal energy supply system of large commercial nuclear energy mesohigh steam and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898400A (en) * | 2017-03-27 | 2017-06-27 | 中核核电运行管理有限公司 | The remote region thermal energy supply system of large commercial nuclear energy mesohigh steam and method |
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Effective date of registration: 20190110 Address after: 518124 Office Building of Daya Bay Nuclear Power Base Engineering Company, Pengfei Road, Dapeng New District, Shenzhen City, Guangdong Province Co-patentee after: Shenzhen China Nuclear Power Design Co., Ltd. Patentee after: China Nuclear Power Engineering Co., Ltd. Co-patentee after: China General Nuclear Power Corporation Address before: 518023 No. 69 Shennan Middle Road, Futian District, Shenzhen City, Guangdong Province Co-patentee before: China General Nuclear Power Corporation Patentee before: China Nuclear Power Engineering Co., Ltd. |
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