CN105276652A - Thermal state flushing device of exhaust-steam absorption heat pump - Google Patents
Thermal state flushing device of exhaust-steam absorption heat pump Download PDFInfo
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- CN105276652A CN105276652A CN201410238782.2A CN201410238782A CN105276652A CN 105276652 A CN105276652 A CN 105276652A CN 201410238782 A CN201410238782 A CN 201410238782A CN 105276652 A CN105276652 A CN 105276652A
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Abstract
The invention relates to the technical field of exhaust-steam absorption heat pumps, and discloses a thermal state flushing device of an exhaust-steam absorption heat pump. The thermal state flushing device comprises a heat pump unit, a main engine exhaust device, a driving steam drain tank, and an exhaust-steam pipeline, a heat supply network circulating water intake pipe, an exhaust-steam drain water pipe, a driving steam drain water pipe, a heat supply network circulating water outlet pipe, and a driving steam pipe respectively communicated with the heat pump unit. The main engine exhaust device is communicated with the heat pump unit through the exhaust-steam drain water pipe. The exhaust-steam drain water pipe is communicated with a flushing pipe. The flushing pipe is provided with a valve. The driving steam drain tank is communicated with the heat pump unit through the driving steam drain water pipe. The thermal state flushing device of an exhaust-steam absorption heat pump is simple in structure, and flexible and reliable in operation. In thermal state flushing of a heat pump, a temporary flushing pipeline is not needed to be added or dismounted each time, thereby reducing flushing time and saving flushing cost. The device is wide in application range.
Description
Technical field
The present invention relates to exhaust steam absorption heat pump technical field, particularly relate to the hot flusher of a kind of exhaust steam absorption heat pump, particularly one can be easy to use, saves human resources and time, the hot flusher of time exhaust steam absorption heat pump and shortening heat pump puts into operation.
Background technology
There are abundant residual heat resources in China, and UTILIZATION OF VESIDUAL HEAT IN potentiality are very large, and along with urbanization rate progressively improves, city heat supply pressure increases gradually, and the contradiction between the finiteness of thermal source and the growth rate of heat supply is increasingly sharpened.Exhaust steam residual heat utilizing works take energy-saving and emission-reduction as target, to solve urban heating for heat problem for starting point, by the transformation of power plants generating electricity unit circulation line, reclaims the exhaust steam residual heat of unit, open the new thermal source of urban heating heat supply.
In recent years, along with the maturation of heat pump techniques develops, increasing power plant carried out the power plant of heat supply network heat pump transformation, particularly Direct Air-cooled Unit, economical obvious especially after heat pump transformation.Because the general heating period in the winter time of heat pump starts, down time is long, has the time of 7 ~ 8 months not running every year.Unit is tighter to the water quality requirement that exhaust steam is hydrophobic, especially supercritical unit or extra-supercritical unit higher to water quality requirement, each heat pump starts must carry out hot flushing, water quality is qualified just can enter host computer system afterwards, so the quality of the hot flushing scheme of source pump becomes the key factor that restriction source pump thoroughly comes into operation fast.
The hot flushing of current absorption heat pump is taked to install pipeline, drain tank and drainage pump additional on exhaust steam hydrophobic pipeline temporarily, the complicated floor space of flusher is large costly, makeshift device must be removed after flushing terminates, next time installs when starting again, need again after flusher has rinsed to remove makeshift device, so not only use inconvenient waste of manpower resource and time, and extend heat pump and put into operation the time, add operation of heat pump expense.Temporary system must consider that its tightness prevents from causing the safe operation of main frame because temporary system misoperation causes main frame vacuum to decline; All connect interim flusher namely to add maintenance operation cost and too increase hard work simultaneously at every turn.
In view of the defect of above-mentioned prior art, need to provide convenience use, save human resources and time, the hot flusher of exhaust steam absorption heat pump of time and shortening heat pump puts into operation.
Summary of the invention
(1) technical problem that will solve
The technical problem to be solved in the present invention is that the complicated floor space of flusher is large costly, rinses after terminating and must remove makeshift device, install again, use inconvenient waste of manpower resource and time when next time starts, and extends heat pump and to put into operation the problem of time.
(2) technical scheme
In order to solve the problems of the technologies described above, the invention provides the hot flusher of a kind of exhaust steam absorption heat pump, comprise: source pump, main frame steam exhaust device, drive steam drainage case, and the exhaust steam pipeline be communicated with described source pump respectively, heat supply network circulating water inlet road, exhaust steam drain water piping, drive steam drainage pipeline, heat supply network circulating water outlet pipe road and drive jet chimney; Described main frame steam exhaust device is communicated with described source pump by described exhaust steam drain water piping, described exhaust steam drain water piping is communicated with flushing pipe, described flushing pipe is provided with valve, and described driving steam drainage case is communicated with described source pump by described driving steam drainage pipeline.
Wherein, described flushing pipe is provided with flushing pipe pump.
Wherein, the import department of described flushing pipe pump and exit are equipped with described valve.
Wherein, described exhaust steam pipeline, described heat supply network circulating water inlet road and described heat supply network circulating water outlet pipe road are equipped with valve.
Wherein, the import department of described main frame steam exhaust device is provided with valve.
Wherein, the exit of described driving steam drainage case is provided with drainage pump.
Wherein, when described drainage pump is multiple, adjacent described drainage pump is in parallel.
Wherein, the import department of described drainage pump and exit are equipped with valve.
Wherein, described driving jet chimney is provided with valve.
Wherein, described driving jet chimney is also provided with adjustment valve.
(3) beneficial effect
Technique scheme tool of the present invention has the following advantages: in the hot flusher of exhaust steam absorption heat pump provided by the invention, exhaust steam drain water piping is provided with the flushing pipe be communicated with it, flushing pipe is provided with valve, main frame steam exhaust device is communicated with source pump by exhaust steam drain water piping, drives steam drainage case to be communicated with source pump by driving steam drainage pipeline.The hot flusher structure of exhaust steam absorption heat pump provided by the invention is simple, and flexible operation is reliable, when carrying out hot flushings of heat pump, need not install the interim flushing line of dismounting at every turn additional, both decrease washing time and also saved developing cost, applied widely.
Accompanying drawing explanation
Fig. 1 is the structural representation cooling triangle in the hot flusher of embodiment of the present invention exhaust steam absorption heat pump.
In figure: 1: main frame steam exhaust device; 2: source pump; 3: exhaust steam valve; 4: adjustment valve; 5: drive steam valve; 10: heat supply network circulating water intake valve; 11: heat supply network circulating water outlet valve; 12: exhaust steam hydrophobic valve; 13: rinse inlet valve; 14: flushing pipe pump; 15: flushing pump outlet non-return valve; 16: rinse outlet valve; 17: drive steam drainage case; 18: the first drainage pumps; 19: the second drainage pumps; 20: exhaust steam pipeline; 21: heat supply network circulating water inlet road; 22: exhaust steam drain water piping; 23: drive steam drainage pipeline; 24: heat supply network circulating water outlet pipe road; 25: drive jet chimney; 26: flushing pipe.
Detailed description of the invention
In describing the invention, except as otherwise noted, the implication of " multiple " is two or more.Term " interior ", " on ", the orientation of the instruction such as D score or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.Following examples for illustration of the present invention, but are not used for limiting the scope of the invention.
As shown in Figure 1, the hot flusher of exhaust steam absorption heat pump provided by the invention, comprise: source pump 2, main frame steam exhaust device 1 and drive steam drainage case 17, and the exhaust steam pipeline 20 be communicated with source pump 2, heat supply network circulating water inlet road 21, exhaust steam drain water piping 22, drive steam drainage pipeline 23, heat supply network circulating water outlet pipe road 24 and drive jet chimney 25; Main frame steam exhaust device 1 is Direct Air-cooled Unit, be connected with exhaust steam in exhaust steam pipeline 20, exhaust steam is turbine discharge, when source pump puts into operation, in evaporimeter in source pump, heat is finally taken away by heat supply network recirculated water by heat release, improves the return water temperature of heat supply network recirculated water.All be connected with heat supply network recirculated water in heat supply network circulating water inlet road 21 and heat supply network circulating water outlet pipe road 24, heat supply network recirculated water enters from heat supply network circulating water inlet road 21 and goes out from heat supply network circulating water outlet pipe road 24.Drive in jet chimney 25 and be connected with driving steam, drive steam to be extracted steam from turbine to be the driving vapour source of absorption heat pump.Exhaust steam is discharged from exhaust steam drain water piping 22 after having been absorbed hot gas.Steam is driven to discharge from driving steam drainage pipeline 23 after having been absorbed hot gas.Exhaust steam drain water piping 22 is provided with the flushing pipe 26 be communicated with exhaust steam drain water piping 22, flushing pipe 26 is provided with valve, this valve, for rinsing inlet valve 13, is positioned on flushing pipe 26.Can inlet valve 13 be rinsed by opening or closing thus open or close flushing pipe 26.Main frame steam exhaust device 1 is communicated with source pump 2 by exhaust steam drain water piping 22, and main frame steam exhaust device 1 is for collecting the exhaust steam by source pump 2.Driving steam drainage case 17 to be communicated with source pump 2 by driving steam drainage pipeline 23, driving steam drainage case 17 for collecting the driving steam by source pump 2.
In the hot flusher of exhaust steam absorption heat pump provided by the invention, flushing pipe 26 is provided with flushing pipe pump 14, arranges when flushing pipe pump 14 is convenient to source pump 2 hot flushing and control washing water quantity, ensure to carry out hot flushing continuously to source pump 2.The import department of flushing pipe pump 14 is provided with rinses inlet valve 13, and flushing pipe pump 14 exit is provided with rinses outlet valve 16, rinses between outlet valve 16 and flushing pipe pump 14 and is provided with flushing pump outlet non-return valve 15.Exhaust steam pipeline 20, heat supply network circulating water inlet road 21 and heat supply network circulating water outlet pipe road 24 are equipped with valve.Exhaust steam pipeline 20 is provided with exhaust steam valve 3, whether enters source pump 2 in order to control exhaust steam; Heat supply network circulating water inlet road 21 is provided with heat supply network circulating water intake valve 10, enters source pump 2 in order to control heat supply network recirculated water backwater; Heat supply network circulating water outlet pipe road 24 is provided with heat supply network circulating water outlet valve 11, discharges from source pump 2 in order to control heat supply network recirculated water.
In the hot flusher of exhaust steam absorption heat pump provided by the invention, the import department of main frame steam exhaust device 1 is provided with valve, the import department of main frame steam exhaust device 1 is provided with exhaust steam hydrophobic valve 12, and whether exhaust steam hydrophobic valve 12 enters in main frame steam exhaust device 1 in order to control exhaust steam.When needs rinse time, open and rinse inlet valve 13 and rinse outlet valve 16, controlled the hot flushing flow rate of source pump 2 by flushing pipe pump 14; Close after water quality is qualified and rinse inlet valve 13, flushing pipe pump 14 and rinse outlet valve 16, open exhaust steam hydrophobic valve 12 source pump 2 and normally run.The present invention is transformed into formal system interim rinse-system, not only handled easily but also pratical and feasible, and small investment, system is simple, improves source pump washing time.Temporary system needs to consider that its tightness prevents from causing the safe operation of main frame because temporary system misoperation causes main frame vacuum to decline, and all connects interim flusher simultaneously at every turn and namely adds maintenance operation cost and too increase hard work.The hot flusher structure of exhaust steam absorption heat pump provided by the invention is simple, and flexible operation is reliable, when carrying out hot flushings of heat pump, need not install the interim flushing line of dismounting at every turn additional, both decrease washing time and also saved developing cost, applied widely.
Drive the exit of steam drainage case 17 to be provided with drainage pump in the hot flusher of exhaust steam absorption heat pump provided by the invention, when drainage pump is multiple, adjacent drainage pump is in parallel.Be provided with two drainage pumps in the present embodiment, namely the first drainage pump 18 and the second drainage pump 19, first drainage pump 18 and the second drainage pump 19 in parallel, when a drainage pump is damaged, another drainage pump can be for subsequent use.Import department and the exit of the first drainage pump 18 and the second drainage pump 19 are equipped with valve, are used for the open and close of control first drainage pump 18 and the second drainage pump 19.
Jet chimney 25 is driven to be provided with valve in the hot flusher of exhaust steam absorption heat pump provided by the invention, drive jet chimney 25 to be provided with in the present embodiment and drive steam valve 5, in order to control to drive in jet chimney 25 whether be connected with driving steam, drive on jet chimney 25 and be also provided with adjustment valve 4, in order to regulate the size driving the driving steam passed through in jet chimney 25.
Source pump 2 comprises: generator, evaporimeter, condenser and absorber, drive steam in generator heat release by a part of water evaporation in rare lithium-bromide solution, bromize lithium dilute solution becomes concentrated solution, water vapour heat release in condenser is absorbed by heat supply network recirculated water and becomes water as refrigerant, water as refrigerant evaporation of absorbing heat in evaporimeter becomes steam discharge and the exhaust steam of water vapor absorption steam turbine, exhaust steam is released the latent heat of vaporization at evaporimeter and is become the main frame steam exhaust device 1 that water finally gets back to steam turbine, the water as refrigerant of evaporation is absorbed releasing heat by dense lithium-bromide solution and is finally taken away by heat supply network recirculated water in absorber, dense lithium-bromide solution becomes rare lithium-bromide solution, rare lithium-bromide solution is got in generator by solvent pump again and be material is thus formed a thermodynamic cycle, the hydrophobic of steam is wherein driven to get back to drain tank 17, get back in the low adding system of extracted steam from turbine backheat through the first drainage pump 18 or the second drainage pump 19.Such heat supply network recirculated water is at absorber, and condenser absorbs heat simultaneously, and the heat of exhaust steam and driving steam just absorbs by heat supply network recirculated water completely, improves the return water temperature of heat supply network recirculated water, reaches the object of energy-saving and emission-reduction.
Exhaust steam in steam turbine, steam turbine heat supply are drawn gas and heat supply network recirculated water introducing source pump 2 by the hot flusher of exhaust steam absorption heat pump provided by the invention, the exhaust steam in steam turbine entering source pump 2 is divided into two-way, enter heat release in main frame steam exhaust device 1 to Air-Cooling Island and absorption type heat pump assembly 2 simultaneously, heat supply network recirculated water flows through condenser successively and directly reclaims exhaust steam residual heat, exhaust steam and heat supply network recirculated water carry out heat exchange, after heat supply network recirculated water is heated, be condensed into condensate water after exhaust steam heat release and flow into exhaust steam in steam turbine drain water piping 22.Absorption type heat pump assembly 2 draws gas as the power recovery exhaust steam residual heat driven using steam turbine heat supply, for heating the heat supply network recirculated water flowing through absorption type heat pump assembly 2, being condensed into water and flowing into driving steam drainage pipeline 23 after exhaust steam heat release.According to demand, the heat supply network recirculated water after source pump 2 heating can be transported to the user of heat supply network again after the heat exchangers for district heating heating in former power plant Gateway Station in Heating Network.
When the hot flusher of exhaust steam absorption heat pump provided by the invention uses, when needs rinse time, open and rinse inlet valve 13 and rinse outlet valve 16, controlled the hot flushing flow rate of source pump 2 by flushing pipe pump 14; Close after water quality is qualified and rinse inlet valve 13, flushing pipe pump 14 and rinse outlet valve 16, open exhaust steam hydrophobic valve 12 source pump 2 and normally run.
The hot flusher of exhaust steam absorption heat pump provided by the invention has the following advantages, in the hot flusher of exhaust steam absorption heat pump provided by the invention, exhaust steam drain water piping is provided with the flushing pipe be communicated with it, flushing pipe is provided with valve, main frame steam exhaust device is communicated with source pump by exhaust steam drain water piping, drives steam drainage case to be communicated with source pump by driving steam drainage pipeline.The hot flusher structure of exhaust steam absorption heat pump provided by the invention is simple, and flexible operation is reliable, when carrying out hot flushings of heat pump, need not install the interim flushing line of dismounting at every turn additional, both decrease washing time and also saved developing cost, applied widely.
Above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (10)
1. the hot flusher of exhaust steam absorption heat pump, it is characterized in that, comprise: source pump (2), main frame steam exhaust device (1), drive steam drainage case (17), and the exhaust steam pipeline (20) be communicated with described source pump (2) respectively, heat supply network circulating water inlet road (21), exhaust steam drain water piping (22), drive steam drainage pipeline (23), heat supply network circulating water outlet pipe road (24) and drive jet chimney (25); Described main frame steam exhaust device (1) is communicated with described source pump (2) by described exhaust steam drain water piping (22), described exhaust steam drain water piping (22) is also communicated with flushing pipe (26), (26) are provided with valve to described flushing pipe, and described driving steam drainage case (17) is communicated with described source pump (2) by described driving steam drainage pipeline (23).
2. the hot flusher of exhaust steam absorption heat pump according to claim 1, is characterized in that: described flushing pipe (26) is provided with flushing pipe pump (14).
3. the hot flusher of exhaust steam absorption heat pump according to claim 2, is characterized in that: import department and the exit of described flushing pipe pump (14) are equipped with described valve.
4. the hot flusher of exhaust steam absorption heat pump according to claim 1, is characterized in that: described exhaust steam pipeline (20), described heat supply network circulating water inlet road (21) and described heat supply network circulating water outlet pipe road (24) are equipped with valve.
5. the hot flusher of exhaust steam absorption heat pump according to claim 1, is characterized in that: the import department of described main frame steam exhaust device (1) is provided with valve.
6. the hot flusher of exhaust steam absorption heat pump according to claim 1, is characterized in that: the exit of described driving steam drainage case (17) is provided with drainage pump.
7. the hot flusher of exhaust steam absorption heat pump according to claim 6, is characterized in that: when described drainage pump is multiple, and adjacent described drainage pump is in parallel.
8. the hot flusher of exhaust steam absorption heat pump according to claim 6, is characterized in that: import department and the exit of described drainage pump are equipped with valve.
9. the hot flusher of exhaust steam absorption heat pump according to claim 1, is characterized in that: described driving jet chimney (25) is provided with valve.
10. the hot flusher of exhaust steam absorption heat pump according to claim 1, is characterized in that: described driving jet chimney (25) is also provided with adjustment valve (4).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410238782.2A CN105276652B (en) | 2014-05-30 | 2014-05-30 | A kind of hot flusher of steam exhaust absorption heat pump |
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| CN201410238782.2A CN105276652B (en) | 2014-05-30 | 2014-05-30 | A kind of hot flusher of steam exhaust absorption heat pump |
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| CN105276652A true CN105276652A (en) | 2016-01-27 |
| CN105276652B CN105276652B (en) | 2019-02-12 |
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Cited By (1)
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| CN109458235A (en) * | 2018-12-17 | 2019-03-12 | 国电龙源节能技术有限公司 | A kind of steam exhaust draining system and method |
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| CN105276652B (en) | 2019-02-12 |
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