CN101865567A - System for combined heat supply by using steam boiler and steam-driven water source heat pump - Google Patents
System for combined heat supply by using steam boiler and steam-driven water source heat pump Download PDFInfo
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- CN101865567A CN101865567A CN 201010165582 CN201010165582A CN101865567A CN 101865567 A CN101865567 A CN 101865567A CN 201010165582 CN201010165582 CN 201010165582 CN 201010165582 A CN201010165582 A CN 201010165582A CN 101865567 A CN101865567 A CN 101865567A
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Abstract
The invention relates to a system for combined heat supply by using steam boiler and steam-driven water source heat pump, belonging to the technical field of heat supply. The system mainly comprises a steam boiler, a steam turbine, a water source heat pump and a heat exchanger and has the connection relationship as follows: the outlet of the steam boiler is connected with the inlet of the steam turbine; the outlet of the steam turbine is connected with the heat inlet of the heat exchanger; the heat outlet of the heat exchanger is connected with the inlet of the steam boiler; backwater in a heat-supply pipe mesh is connected with the heat inlet of the water source heat pump; the heat outlet of the water resource heat pump is connected with the cold inlet of the heat exchanger; the cold outlet of the heat exchanger is connected with water supply of the pipe network for supplying heat; the supplied backwater of a low-grade heat source is respectively connected with the cold inlet and the cold outlet of the water resource heat pump; and the steam turbine is connected with the water resource heat pump by a coupling. Energy in the steam in the system of the invention is not released in vain, and a great quantity of energy is obtained from outside by the heat pump.
Description
Technical field
The invention belongs to the heat supply process field, particularly utilize the system of steam boiler and steam-powered water source heat pump combining heat supply.
Background technology
Water source heat pump technology is the principle according to Carnot cycle, by importing a part of high-grade energy, utilizes the various reproducible low-grade energies of occurring in nature that heating, refrigeration and domestic hot-water's technology is provided for building.The high-grade energy that water source heat pump technology need be imported is mainly electric energy, and its utilizable various reproducible low-grade energy comprises: the shallow-layer ground energy in the underground, the low grade heat energy in low grade heat energy, municipal sewage and the industrial wastewater in the rivers,lakes and seas, various industrial exhaust heats or the like.
Need consumed power when utilizing water source heat pump technology to carry out heat supply, because the generating efficiency of power plant generally has only about 30% at present, add the loss of power transmission and transformation, the user side power consumption efficiency has only about 25%, that is to say that the user uses a electric energy, power plant will consume four parts primary energy, so the fractional energy savings of electrically driven (operated) heat pump is not high generally.
Existing heat-supplying mode generally is to carry out heat supply with direct heat hot water of boiler or steam.Because the efficient of boiler is generally between 70-85%, so consume the heat energy that a primary energy can only obtain 0.7-0.85 part.
Summary of the invention
The objective of the invention is for overcoming the weak point of prior art, a kind of system that utilizes steam boiler and steam-powered water source heat pump combining heat supply is proposed, energy in the system of the present invention in the steam is not only discharged in vain, but also has obtained a large amount of energy from the external world by heat pump.
The system that utilizes steam boiler and steam-powered water source heat pump combining heat supply that the present invention proposes, it is characterized in that, this system mainly comprises: steam boiler, steam turbine, water resource heat pump and heat exchanger, its annexation is: the outlet of steam boiler links to each other with the inlet of steam turbine, and the outlet of steam turbine links to each other with the heat of heat exchanger inlet; The heat outlet of heat exchanger links to each other with the inlet of steam boiler, the backwater of heating network links to each other with the heat of water resource heat pump inlet (31), the heat outlet (32) of water resource heat pump connects with the cold inlet of heat exchanger, the cold outlet of heat exchanger links to each other with the water supply of heating network, and the backwater that supplies of low level heat energy links to each other with cold outlet (34) with the cold inlet (33) of water resource heat pump respectively; The shaft joint that steam turbine has by himself links to each other with water resource heat pump.
Technical characterstic of the present invention and beneficial effect:
The present invention directly drives heat pump with the steam that steam boiler produces, for example obtain various reproducible low-grade energies from the outside: the shallow-layer ground energy the underground, the low grade heat energy in low grade heat energy, municipal sewage and the industrial wastewater in the rivers,lakes and seas, various industrial exhaust heats or the like, still contain lot of energy in the steam after the recirculated water driving water resource heat pump that utilizes these low-grade energies to heat heating networks does work, utilize these energy to heat the recirculated water of heating network once more, get back in the boiler and these steam become condensed water at last by heat exchanger.In this course, part energy in the steam is used for obtaining from the outside reproducible low-grade energy, another part is used for directly heating circulation water for heating, and the energy in the steam is not only discharged in vain, but also has obtained a large amount of energy from the external world by heat pump.
Description of drawings
Fig. 1 is that the system of steam boiler of the present invention and steam-powered water source heat pump combining heat supply constitutes and the workflow schematic diagram.
The specific embodiment
The present invention proposes the system and method for a kind of steam boiler and steam-powered water source heat pump combining heat supply, reaches embodiment in conjunction with the accompanying drawings and is described in detail as follows:
Structure of the present invention as shown in Figure 1, this system mainly comprises: steam boiler 1, steam turbine 2, water resource heat pump 3, heat exchanger 4, its annexation is: the outlet of steam boiler 1 links to each other with the inlet 21 of steam turbine 2, and the outlet of steam turbine 2 links to each other with the heat inlet 41 of heat exchanger 4; The heat of heat exchanger 4 outlet 42 links to each other with the inlet of steam boiler 1, the backwater 6 of heating network links to each other with the heat of water resource heat pump 3 inlet 31, the heat of water resource heat pump 3 outlet 32 links to each other with the cold inlet 43 of heat exchanger 4, the cold outlet 44 of heat exchanger 4 links to each other with the water supply 5 of heating network, and the backwater that supplies of low level heat energy 7 links to each other with cold outlet 34 with the cold inlet 33 of water resource heat pump 3 respectively.The kinematic axis of steam turbine 2 links to each other with the kinematic axis of compressor in the source pump by (himself has) shaft joint, and like this, rotatablely moving of steam turbine can drive rotatablely moving of compressor, thereby drives source pump 3 work.
The course of work of the present invention is: as shown in Figure 1, the steam that boiler 1 produces enters steam turbine 2, drive water resource heat pump 3 earlier, obtain recirculated water in the heat energy heating heating network in the low level heat energy by water resource heat pump 3, still contain a large amount of heat energy behind the steam drive water resource heat pump 3, heat recirculated water in the heating network once more by heat exchanger 4, like this, recirculated water in the heating network through heat exchanger 4 heating, enters heating network to user's heat supply more at last earlier through water resource heat pump 3 heating.Because the efficient of boiler is generally 75-85%, the efficient of steam turbine is generally 16-30%, and the Energy Efficiency Ratio of water resource heat pump is 4.5-5.0 (consumes a high-grade energy, can obtain the heat energy of 4-5 part).So, according to above technical indicator measuring and calculating, consume a primary energy, the heat energy maximum that is used for heat supply that finally obtains can be 0.85 * 0.3 * 5.0+0.85 * 0.7=187%, and the boiler of same efficiency adopts the heating efficiency of traditional heat-supplying mode only is 85%; Minimum also can reach: 0.75 * 0.16 * 4.5+0.75 * 0.84=117%, it only is 75% that the boiler of same efficiency adopts the heating efficiency of traditional heat-supplying mode.The present invention can improve utilization efficiency of energy greatly.
The specific embodiment of each equipment is described as follows in the native system:
Claims (1)
1. system that utilizes steam boiler and steam-powered water source heat pump combining heat supply, it is characterized in that, this system mainly comprises: steam boiler, steam turbine, water resource heat pump and heat exchanger, its annexation is: the outlet of steam boiler links to each other with the inlet of steam turbine, and the outlet of steam turbine links to each other with the heat of heat exchanger inlet; The heat outlet of heat exchanger links to each other with the inlet of steam boiler, and the backwater of heating network links to each other with the heat of water resource heat pump inlet (31), and the heat outlet (32) of water resource heat pump connects with the cold inlet of heat exchanger; Steam turbine links to each other with water resource heat pump by shaft joint, and the cold outlet of heat exchanger links to each other with the water supply of heating network, and the backwater that supplies of low level heat energy links to each other with cold outlet (34) with the cold inlet (33) of water resource heat pump respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010165582 CN101865567A (en) | 2010-04-30 | 2010-04-30 | System for combined heat supply by using steam boiler and steam-driven water source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010165582 CN101865567A (en) | 2010-04-30 | 2010-04-30 | System for combined heat supply by using steam boiler and steam-driven water source heat pump |
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| CN101865567A true CN101865567A (en) | 2010-10-20 |
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| CN 201010165582 Pending CN101865567A (en) | 2010-04-30 | 2010-04-30 | System for combined heat supply by using steam boiler and steam-driven water source heat pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023035149A1 (en) * | 2021-09-08 | 2023-03-16 | 西门子股份公司 | Industrial boiler heat supply system, and control method and control apparatus therefor |
Citations (7)
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| US4093868A (en) * | 1974-04-29 | 1978-06-06 | Manning John I | Method and system utilizing steam turbine and heat pump |
| EP0008680A2 (en) * | 1978-09-02 | 1980-03-19 | Chemische Werke Hüls Ag | Method of producing thermal energy by the combination of a heat engine with a heat pump |
| CN200972286Y (en) * | 2006-11-16 | 2007-11-07 | 沈阳国惠供热有限公司 | Thermodynamic centrifugal water source heat pump set |
| DE102006035263B3 (en) * | 2006-07-29 | 2007-12-06 | Walter Varlemann | Turbine`s e.g. steam turbine, waste heat utilizing method, involves bringing cooling medium to higher temperature level by heat pump, and supplying vapor medium to turbine, where vapor medium is heated by heat exchanger |
| CN101231004A (en) * | 2008-02-28 | 2008-07-30 | 清华大学 | Large temperature-difference central heating system |
| KR100849578B1 (en) * | 2007-11-20 | 2008-07-31 | 두산건설 주식회사 | High efficient energy saving type heating system using integrated assistant heat source means |
| CN201688499U (en) * | 2010-04-30 | 2010-12-29 | 张军 | Combined heating system utilizing water-source heat pump driven by steam and steam boiler |
-
2010
- 2010-04-30 CN CN 201010165582 patent/CN101865567A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4093868A (en) * | 1974-04-29 | 1978-06-06 | Manning John I | Method and system utilizing steam turbine and heat pump |
| EP0008680A2 (en) * | 1978-09-02 | 1980-03-19 | Chemische Werke Hüls Ag | Method of producing thermal energy by the combination of a heat engine with a heat pump |
| DE102006035263B3 (en) * | 2006-07-29 | 2007-12-06 | Walter Varlemann | Turbine`s e.g. steam turbine, waste heat utilizing method, involves bringing cooling medium to higher temperature level by heat pump, and supplying vapor medium to turbine, where vapor medium is heated by heat exchanger |
| CN200972286Y (en) * | 2006-11-16 | 2007-11-07 | 沈阳国惠供热有限公司 | Thermodynamic centrifugal water source heat pump set |
| KR100849578B1 (en) * | 2007-11-20 | 2008-07-31 | 두산건설 주식회사 | High efficient energy saving type heating system using integrated assistant heat source means |
| CN101231004A (en) * | 2008-02-28 | 2008-07-30 | 清华大学 | Large temperature-difference central heating system |
| CN201688499U (en) * | 2010-04-30 | 2010-12-29 | 张军 | Combined heating system utilizing water-source heat pump driven by steam and steam boiler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023035149A1 (en) * | 2021-09-08 | 2023-03-16 | 西门子股份公司 | Industrial boiler heat supply system, and control method and control apparatus therefor |
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| ASS | Succession or assignment of patent right |
Owner name: SHENYANG HUAYU GROUND SOURCE HEAT PUMP HEATING CO. Free format text: FORMER OWNER: ZHANG JUN Effective date: 20110913 |
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Free format text: CORRECT: ADDRESS; FROM: 100190 HAIDIAN, BEIJING TO: 110027 SHENYANG, LIAONING PROVINCE |
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Effective date of registration: 20110913 Address after: 110027 Liaoning province Shenyang City Yuhong District Ji Li Lake Street No. 36-4 3-3-8 Applicant after: Shenyang Huayu Ground-Source Heat Pump Heating Co., Ltd. Address before: 100190 Beijing, Zhongguancun, building two, floor 333, No. Applicant before: Zhang Jun |
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Open date: 20101020 |