CN105783082A - Energy-saving heating network circulating water system - Google Patents
Energy-saving heating network circulating water system Download PDFInfo
- Publication number
- CN105783082A CN105783082A CN201610280560.6A CN201610280560A CN105783082A CN 105783082 A CN105783082 A CN 105783082A CN 201610280560 A CN201610280560 A CN 201610280560A CN 105783082 A CN105783082 A CN 105783082A
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- Prior art keywords
- circulating pump
- water circulating
- steam
- supply network
- heat supply
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/02—Hot-water central heating systems with forced circulation, e.g. by pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
Abstract
The invention relates to an energy-saving heating network circulating water system. According to the system, a steam-driving heating network circulating water pump with capacity of heating network circulating water volume of 50% is set, the circulating water pump is dragged by a back-pressure type small steam turbine, a high pressure cylinder is adopted for the steam source of the small steam turbine for steam discharge, and the back-pressure type small steam turbine discharges steam for heating and steam extraction. Meanwhile, an electric power frequency heating network circulating water pump with capacity of 50% and an electric variable-frequency heating network circuiting water pump with capacity of 50% are set. During heat supply, the steam-driving heating network circulating water pump with capacity of 50% operates at full load, and the purposes of energy saving and consumption reduction are achieved by using the electric circulating water pump with capacity of 50% with variable frequency according to the flow of heating network circulating water. The electric power frequency heating network circulating water pump with capacity of 50% is for emergency reserve when the steam-driving pump has fault so as to ensure the safety of the heating network circulating water system.
Description
Technical field
The present invention relates to a kind of energy-saving heat supply network circulation.
Background technology
In China's cold area, algid stage in winter, is longer, for reaching to save energy and reduce the cost, the purpose of safety and environmental protection, and the region many employings cogeneration units central heating of China's severe cold.Cogeneration units many employings heating is drawn gas after heating one secondary net heat supply network recirculated water, utilizes circulation pump of heat-supply network that heat supply network recirculated water is supplied to each heat exchange station in city, returns to cogeneration of heat and power enterprise after carrying out abundant heat exchange with secondary heat supply network.Therefore, in the process of whole heat supply network recirculated water cycle heat exchange, circulation pump of heat-supply network starts vital key role.For the cogeneration of heat and power enterprise bigger for thermal region, it is necessary to arrange multiple stage circulation pump of heat-supply network, increase, according to the actual flow of heat supply network recirculated water, the number of units that circulation pump of heat-supply network starts at any time.Substantial amounts of electronic circulation pump of heat-supply network consumes substantial amounts of station service at work, and therefore the economy design of circulation pump of heat-supply network is very important.
Because above-mentioned defect, the design people, actively in addition research and innovation, to founding a kind of energy-saving heat supply network circulation so that it is have more the value in industry.
Summary of the invention
For solving above-mentioned technical problem, it is an object of the invention to provide a kind of rational in infrastructure, energy-saving and cost-reducing energy-saving heat supply network circulation.
The energy-saving heat supply network circulation of the present invention, including: high pressure cylinder, intermediate pressure cylinder, low pressure (LP) cylinder and electromotor, the rotor of high pressure cylinder, the rotor of intermediate pressure cylinder, rotor and the generator amature of low pressure (LP) cylinder are coaxially disposed, also include heater, the steam-operating water circulating pump being arranged in parallel, electric frequency conversion water circulating pump, described high pressure cylinder connects steam-operating water circulating pump by driving axle, the air vent of medium pressure cylinder is connected to the air inlet of heat exchangers for district heating by pipeline, described heat exchangers for district heating connects steam-operating water circulating pump respectively, electric frequency conversion water circulating pump, steam-operating water circulating pump connects heat exchangers for district heating, the heat supply network backwater of heat supply network return water system inputs to heat exchangers for district heating respectively via steam-operating water circulating pump, electric frequency conversion water circulating pump, export to a heat supply network water system；
In the heat supply phase, steam-operating water circulating pump oepration at full load, regulate electric frequency conversion water circulating pump according to heat supply network circulating water flow variable frequency adjustment, reach heat supply network recirculated water flowing full amount.
Further, the electronic power frequency water circulating pump being arranged in parallel with steam-operating water circulating pump, electric frequency conversion water circulating pump is also included.
Further, the heat exchangers for district heating drain trap that described heat exchangers for district heating is connected also is included by drain water piping.
Further, described steam-operating water circulating pump is 50% capacity steam-operating water circulating pump, and described electric frequency conversion water circulating pump is 50% capacity electric frequency conversion water circulating pump, and described electronic power frequency water circulating pump is 50% capacity electric power frequency water circulating pump.
By such scheme, the energy-saving heat supply network circulation of the present invention at least has the advantage that
1, one back pressure type small turbine is set and drags circulation pump of heat-supply network, substitute the electronic circulation pump of heat-supply network of former 50% capacity, save a large amount of station service, increase cogeneration of heat and power Business Economic Benefit.
2, back pressure type small turbine vapour source is from the high pressure steam discharge of corresponding unit, matches small steam turbine exhaust steam parameter to main frame heating extraction line.
3, during heat supply, during heat supply, the steam-operating water circulating pump oepration at full load of 50% capacity, according to the heat supply network circulating water flow electric water circulating pump with variable frequency adjustment 50% capacity, reach the purpose saved energy and reduce the cost.
4, arrange 50% capacity electronic power frequency water circulating pump can when steam-operating water circulating pump breaks down emergency use, it is ensured that the safety of heat supply network circulation.
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention, and can be practiced according to the content of description, below with presently preferred embodiments of the present invention and coordinate accompanying drawing describe in detail as after.
Accompanying drawing explanation
Fig. 1 is the structural representation of the energy-saving heat supply network circulation of the present invention；
High pressure cylinder 1, intermediate pressure cylinder 2, low pressure (LP) cylinder 3, electromotor 4, steam-operating water circulating pump 5, electric frequency conversion water circulating pump 6, electronic power frequency water circulating pump 7, heat exchangers for district heating 8, heat exchangers for district heating drain trap 9.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
Embodiment 1
As shown in Figure 1, the energy-saving heat supply network circulation of the present embodiment, including: high pressure cylinder 1, intermediate pressure cylinder 2, low pressure (LP) cylinder 3 and electromotor 4, the rotor of high pressure cylinder, the rotor of intermediate pressure cylinder, rotor and the generator amature of low pressure (LP) cylinder are coaxially disposed, also include heater 8, the steam-operating water circulating pump 5 being arranged in parallel, electric frequency conversion water circulating pump 6, described high pressure cylinder connects steam-operating water circulating pump by driving axle, the air vent of medium pressure cylinder is connected to the air inlet of heat exchangers for district heating by pipeline, described heat exchangers for district heating connects steam-operating water circulating pump respectively, electric frequency conversion water circulating pump, steam-operating water circulating pump connects heat exchangers for district heating, the heat supply network backwater of heat supply network return water system inputs to heat exchangers for district heating respectively via steam-operating water circulating pump, electric frequency conversion water circulating pump, export to a heat supply network water system；
In the heat supply phase, steam-operating water circulating pump oepration at full load, regulate electric frequency conversion water circulating pump according to heat supply network circulating water flow variable frequency adjustment, reach heat supply network recirculated water flowing full amount, reach the purpose saved energy and reduce the cost.
The present embodiment, by arranging heat supply network quantity of circulating water 50% capacity steam-operating water circulating pump, replaces original electronic circulation pump of heat-supply network, reaches to save the purpose of a large amount of station service, increases electricity volume, increases economic benefit for cogeneration of heat and power enterprise.The New Cycle water pump arranged adopts back pressure type small turbine to drag, and back pressure type small turbine vapour source adopts high pressure cylinder steam discharge, matches the steam discharge parameter of small turbine to heating extraction line.The electric frequency conversion water circulating pump of one 50% capacity electric power frequency circulation pump of heat-supply network and 50% capacity is set simultaneously.During heat supply, the steam-operating water circulating pump oepration at full load of 50% capacity, according to the heat supply network circulating water flow electric water circulating pump with variable frequency adjustment 50% capacity, reach the purpose saved energy and reduce the cost.
Embodiment 2
The energy-saving heat supply network circulation of the present embodiment, on embodiment 1 basis, also includes the electronic power frequency water circulating pump 7 being arranged in parallel with steam-operating water circulating pump, electric frequency conversion water circulating pump.Can when steam-operating water circulating pump breaks down emergency use, it is ensured that the safety of heat supply network circulation.
In the various embodiments described above, also include the heat exchangers for district heating drain trap 9 that described heat exchangers for district heating is connected by drain water piping.
The above is only the preferred embodiment of the present invention; it is not limited to the present invention; should be understood that; for those skilled in the art; under the premise without departing from the technology of the present invention principle; can also making some improvement and modification, these improve and modification also should be regarded as protection scope of the present invention.
Claims (4)
1. an energy-saving heat supply network circulation, it is characterized in that, including: high pressure cylinder, intermediate pressure cylinder, low pressure (LP) cylinder and electromotor, the rotor of high pressure cylinder, the rotor of intermediate pressure cylinder, rotor and the generator amature of low pressure (LP) cylinder are coaxially disposed, also include heater, the steam-operating water circulating pump being arranged in parallel, electric frequency conversion water circulating pump, described high pressure cylinder connects steam-operating water circulating pump by driving axle, the air vent of medium pressure cylinder is connected to the air inlet of heat exchangers for district heating by pipeline, described heat exchangers for district heating connects steam-operating water circulating pump respectively, electric frequency conversion water circulating pump, steam-operating water circulating pump connects heat exchangers for district heating, the heat supply network backwater of heat supply network return water system inputs to heat exchangers for district heating respectively via steam-operating water circulating pump, electric frequency conversion water circulating pump, export to a heat supply network water system；
In the heat supply phase, steam-operating water circulating pump oepration at full load, regulate electric frequency conversion water circulating pump according to heat supply network circulating water flow variable frequency adjustment, reach heat supply network recirculated water flowing full amount.
2. energy-saving heat supply network circulation according to claim 1, it is characterised in that also include the electronic power frequency water circulating pump being arranged in parallel with steam-operating water circulating pump, electric frequency conversion water circulating pump.
3. energy-saving heat supply network circulation according to claim 1, it is characterised in that also include the heat exchangers for district heating drain trap that described heat exchangers for district heating is connected by drain water piping.
4. energy-saving heat supply network circulation according to claim 2, it is characterized in that, described steam-operating water circulating pump is 50% capacity steam-operating water circulating pump, described electric frequency conversion water circulating pump is 50% capacity electric frequency conversion water circulating pump, and described electronic power frequency water circulating pump is 50% capacity electric power frequency water circulating pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280560.6A CN105783082A (en) | 2016-04-29 | 2016-04-29 | Energy-saving heating network circulating water system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610280560.6A CN105783082A (en) | 2016-04-29 | 2016-04-29 | Energy-saving heating network circulating water system |
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| CN105783082A true CN105783082A (en) | 2016-07-20 |
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| CN201610280560.6A Pending CN105783082A (en) | 2016-04-29 | 2016-04-29 | Energy-saving heating network circulating water system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949521A (en) * | 2017-04-01 | 2017-07-14 | 祝凤娟 | A kind of heat supply remodeling method for realizing the operation of turbine condenser high vacuum |
| CN107191232A (en) * | 2017-06-06 | 2017-09-22 | 大唐东北电力试验研究所有限公司 | Electric heating unit heating system |
| CN107420138A (en) * | 2017-08-02 | 2017-12-01 | 大唐东北电力试验研究所有限公司 | Turbo-generator Set novel energy-conserving system and method |
| CN113983543A (en) * | 2021-10-11 | 2022-01-28 | 河北工大科雅能源科技股份有限公司 | Method, device, terminal and storage medium for control of circulation pump of heating power station |
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Patent Citations (7)
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| RU2373461C1 (en) * | 2008-09-29 | 2009-11-20 | Борис Алексеевич Зимин | Heat supply system |
| CN103017231A (en) * | 2012-12-11 | 2013-04-03 | 华电电力科学研究院 | Heat supply network water circulating pump energy-saving driving system of thermal power plant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949521A (en) * | 2017-04-01 | 2017-07-14 | 祝凤娟 | A kind of heat supply remodeling method for realizing the operation of turbine condenser high vacuum |
| CN106949521B (en) * | 2017-04-01 | 2017-12-08 | 晟源高科(北京)科技有限公司 | A kind of heat supply remodeling method for realizing the operation of turbine condenser high vacuum |
| CN107191232A (en) * | 2017-06-06 | 2017-09-22 | 大唐东北电力试验研究所有限公司 | Electric heating unit heating system |
| CN107191232B (en) * | 2017-06-06 | 2023-07-07 | 大唐东北电力试验研究所有限公司 | Heating system of electric heating unit |
| CN107420138A (en) * | 2017-08-02 | 2017-12-01 | 大唐东北电力试验研究所有限公司 | Turbo-generator Set novel energy-conserving system and method |
| CN113983543A (en) * | 2021-10-11 | 2022-01-28 | 河北工大科雅能源科技股份有限公司 | Method, device, terminal and storage medium for control of circulation pump of heating power station |
| CN113983543B (en) * | 2021-10-11 | 2023-04-04 | 河北工大科雅能源科技股份有限公司 | Method, device, terminal and storage medium for control of circulation pump of heating power station |
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Application publication date: 20160720 |