CN203669945U - Waste heat recovery device for indirect air cooling unit - Google Patents
Waste heat recovery device for indirect air cooling unit Download PDFInfo
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- CN203669945U CN203669945U CN201320728968.7U CN201320728968U CN203669945U CN 203669945 U CN203669945 U CN 203669945U CN 201320728968 U CN201320728968 U CN 201320728968U CN 203669945 U CN203669945 U CN 203669945U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to a waste heat recovery device for an indirect air cooling unit. Air cooling circulation water of a closed circulation cooling water system of the indirect air cooling generator unit serves as a heat source. Primary air and secondary air of a boiler are heated through heaters. The primary air heater is arranged in a primary air duct and the secondary air heater is arranged in a secondary air duct. A heat-exchanging element of each heater can be a helical finned tube or an H-type finned tube or a steel-aluminum combined finned tube or other types of finned tubes or light tubes. The air cooling circulation water flows in the tubes and the primary air and the secondary air flow outside the tubes, so that the heat exchange is achieved. The waste heat recovery device for the indirect air cooling unit is stable in operation, safe, environmentally friendly and good in energy-saving effect.
Description
Technical field
The utility model belongs to power environment protection field, particularly relates to a kind of indirect air cooling unit waste heat recovering device.
Background technique
The operation of modern large-size thermal power plant need to consume water resources, just need to adopt the new type of cooling to get rid of waste heat and build jumbo thermal power plant in water-deficient area.Adopting the thermal power generating technology of Air-cooled Unit is a kind of water-saving thermal power generating technology, is widely applied in water scarcity the Northwest of China at present.
Air cooling technique is divided into direct air cooling and indirect air cooling, and indirect air cooling unit is generally made up of the systems such as surface condenser, air cooling heat radiator, circulating water pump and nitrogen filled protection system, circulating water system system and radiator purging system and air cooling tower.Indirect air cooling unit is substantially similar with conventional clammy unit, and difference is to adopt air cooling tower to replace clammy tower, replaces Open recirling cooling water system by Enclosed Type Circulating Cooling Water System, and circulating water adopts demineralized water.
In indirect air cooling unit; the temperature that generally enters the circulating water of surface condenser can be higher than 20 DEG C of left and right of ambient temperature; in surface condenser, absorbing heat condenses the exhaust steam of steam turbine; the temperature of the circulating water of surface condenser outlet conventionally can be higher than 30 DEG C of left and right of ambient temperature; enter again the air cooling heat radiator in air cooling tower (Air-Cooling Island); return to higher than 20 DEG C of left and right of ambient temperature by ambient air is cooling, recycle.
In addition, in large-scale coal-fired electric generation furnace, wind, secondary air system all can be set conventionally.A wind is mainly for delivery of fuel, and Secondary Air is mainly used in combustion-supporting.One time wind, Secondary Air are taken from ambient air, need through carrying out preheating in the air preheater in boiler before utilization.
As can be seen here, in existing indirect air cooling unit, existing on the one hand air cooling circulating water need to be cooling by air, and the wind, the Secondary Air that exist again on the other hand boiler need to will be taken from the air preheat of environment.In view of this, for many years research of the design people based on to Air-cooled Unit, on the basis of abundant practical experience and professional knowledge, actively research and innovation in addition, creates the new technology of a kind of indirect air cooling unit heat recovery finally.
Summary of the invention
The purpose of this utility model is, a kind of new indirect air cooling unit waste heat recovering device is proposed, technical problem to be solved is to make it need the waste heat of cooling circulating water to be used for heating indirect air cooling unit to need a time of preheating wind and Secondary Air, to reduce wind, the caloric receptivity of Secondary Air in boiler, thereby reach energy-conservation object.
The purpose of this utility model and solve its technical problem and realize by the following technical solutions.According to a kind of indirect air cooling unit waste heat recovering device the utility model proposes, it comprises: wind heater, Secondary Air heater and a system pipeline; Wherein, a described wind heater is arranged in a wind air channel; Described Secondary Air heater is arranged in Secondary Air air channel; Be provided with intake and backwater mouth connecting on the surface condenser of recirculating cooling water system of described indirect air cooling unit and the pipeline of Air-Cooling Island; Wherein, described intake is arranged on the pipeline at air cooling circulating water outlet place of described surface condenser; Described backwater mouth is arranged on the pipeline between the air cooling circulating water outlet of described surface condenser and the air cooling circulating water entrance of described Air-Cooling Island, and between the air cooling circulating water entrance of described intake and described Air-Cooling Island, or be arranged on the pipeline between the air cooling circulating water outlet of described Air-Cooling Island and the air cooling circulating water entrance of described surface condenser; A described wind heater and described Secondary Air heater are parallel between described intake and described backwater mouth by described system pipeline.
The purpose of this utility model and solve its technical problem and also can be applied to the following technical measures to achieve further.
Aforesaid indirect air cooling unit waste heat recovering device, is provided with system inlet valve on the described system pipeline being wherein connected with a described wind heater and described Secondary Air heater at described intake; On the described system pipeline being connected with a described wind heater and described Secondary Air heater at described backwater mouth, be provided with system outlet valve, on the described system pipeline between described system outlet valve and a described wind heater and described Secondary Air heater, be also provided with dewatering outlet, in described dewatering outlet, place is provided with discharging valve.
Aforesaid indirect air cooling unit waste heat recovering device, a wherein said wind heater and described Secondary Air heater are that its one end is connected to same described system inlet valve by same described system pipeline after in parallel by described system pipeline, be connected to described intake by described system inlet valve again, its the other end is connected to same described system outlet valve by same described system pipeline, then is connected to described backwater mouth by described system outlet valve; Described dewatering outlet is one, be arranged at and make on a described wind heater described system pipeline in parallel with described Secondary Air heater, or be arranged at a described wind heater with on the described system pipeline being connected with described system outlet valve after the parallel connection of described Secondary Air heater.
Aforesaid indirect air cooling unit waste heat recovering device, wherein making in a described wind heater described system pipeline in parallel with described Secondary Air heater, on the described system pipeline being connected with the water intake of a described wind heater, be provided with wind heater water side modulating valve one time, on the described system pipeline being connected with the water intake of described Secondary Air heater, be provided with Secondary Air heater water side modulating valve.
Aforesaid indirect air cooling unit waste heat recovering device, is wherein provided with supercharging recycle pump at a described wind heater with on the described system pipeline being connected with described system inlet valve after the parallel connection of described Secondary Air heater.
Aforesaid indirect air cooling unit waste heat recovering device, is provided with wind heater water side modulating valve one time on the described system pipeline being wherein connected with a described wind heater at described intake; On the described system pipeline being connected with described Secondary Air heater at described intake, be provided with Secondary Air heater water side modulating valve.
Aforesaid indirect air cooling unit waste heat recovering device, is provided with supercharging recycle pump on the described system pipeline being wherein connected with a described wind heater and described Secondary Air heater at described intake.
Aforesaid indirect air cooling unit waste heat recovering device, the heating surface of a wherein said wind heater and described Secondary Air heater adopts fin tube or the light pipe of spiral fin coil, H type extended surface tube, steel-aluminum composite fin tube, other form.
The utility model compared with prior art has obvious advantage and beneficial effect.By technique scheme, a kind of indirect air cooling unit of the utility model waste heat recovering device at least has following advantages and beneficial effect:
One, indirect air cooling unit waste heat recovering device of the present utility model can improve the entering air temp of wind of boiler, Secondary Air, reduces the coal consumption of unit, improves the Economy of power plant, reduces the discharge of polluting simultaneously.
Two, indirect air cooling unit waste heat recovering device of the present utility model can reduce the temperature of air cooling circulating water, thereby reduces the investment of Air-Cooling Island; And if the investment that maintains Air-Cooling Island is constant, can strengthen air cooling heat transfer effect, reduce turbine back pressure, improve the Economy of unit.
Three, indirect air cooling unit waste heat recovering device of the present utility model is simple in structure, operates steadily, safety.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of specification, and for above and other object of the present utility model, feature and advantage can be become apparent, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Brief description of the drawings
Fig. 1 is the schematic diagram of a preferred embodiment of a kind of indirect air cooling unit of the utility model waste heat recovering device.
1: wind heater 2: Secondary Air heater
3: wind heater water side modulating valve 4: Secondary Air heater water side modulating valve
5: supercharging recycle pump 6: system inlet valve
7: system outlet valve 8: system pipeline
9: discharging valve 10: surface condenser
11: Air-Cooling Island 12: recycle pump
13: air preheater 14: boiler
15: steam turbine 16: condensate pump
17: low-pressure heater 18: oxygen-eliminating device
19: feed water pump 20: high-pressure heater
21: primary air fan 22: overfire air fan
Embodiment
Technological means and effect of taking for reaching predetermined goal of the invention for further setting forth the utility model, below in conjunction with accompanying drawing and preferred embodiment, to a kind of its embodiment of indirect air cooling unit waste heat recovering device, structure, step, feature and effect thereof according to the utility model proposes, be described in detail as follows.
Relevant aforementioned and other technology contents of the present utility model, Characteristic can be known and present in the following detailed description coordinating with reference to graphic preferred embodiment.By the explanation of embodiment, should obtain one more deeply and concrete understanding for technological means and effect of reaching predetermined object and taking to the utility model, but appended graphic be only to provide with reference to the use of explanation, be not used for the utility model to be limited.
Referring to shown in Fig. 1, is the schematic diagram of a preferred embodiment of a kind of indirect air cooling unit of the utility model waste heat recovering device.
Indirect air cooling unit waste heat recovering device of the present utility model is mainly made up of wind heater 1, Secondary Air heater 2 and a system pipeline 8.Wherein, one time wind heater 1 is arranged in a wind air channel, and Secondary Air heater 2 is arranged in Secondary Air air channel.Be provided with intake and backwater mouth connecting on the surface condenser 10 of recirculating cooling water system of indirect air cooling unit and the pipeline of Air-Cooling Island 11.Wherein, intake is arranged on the pipeline at air cooling circulating water outlet place of surface condenser 1; Backwater mouth is arranged on the pipeline between the air cooling circulating water outlet of surface condenser 10 and the air cooling circulating water entrance of Air-Cooling Island 11, and between the air cooling circulating water entrance of intake and Air-Cooling Island 11, or be arranged on the pipeline between the air cooling circulating water outlet of Air-Cooling Island 11 and the air cooling circulating water entrance of surface condenser 10.Wind heater 1 and Secondary Air heater 2 are parallel between intake and backwater mouth by system pipeline 8.
The recirculating cooling water system of indirect air cooling unit is by surface condenser 10, the exhaust steam of steam turbine 15 to be condensed, make air cooling circulating water heated hot water that produces in surface condenser 10 simultaneously, and by recycle pump 12, hot water is sent into Air-Cooling Island 11, make air cooling circulating water interior through the cooling generation cold water of air at Air-Cooling Island 11, send cold water back to surface condenser 10 by recycle pump 12 again, recycle.Indirect air cooling unit waste heat recovering device of the present utility model is the UTILIZATION OF VESIDUAL HEAT IN branch road being connected on the pipeline of recirculating cooling water system of indirect air cooling unit, it passes through system pipeline 8 by the wind heater 1 of hot water introducing and the Secondary Air heater 2 that produce in the surface condenser of recirculating cooling water system 10 by intake, add mobile air in heat primary air air channel and Secondary Air air channel as hot side working medium, the temperature of wind and Secondary Air is improved.Meanwhile, hot water is cooling by wind and Secondary Air in wind heater 1 and Secondary Air heater 2, and temperature reduces, and is sent back to recirculating cooling water system again by system pipeline 8 by backwater mouth, recycles.
The utility model is to utilize in the recirculating cooling water system of indirect air cooling unit, to need the waste heat of cooling air cooling circulating water to heat to need a time of preheating wind and Secondary Air, wind and Secondary Air temperature after heated are improved, again by air preheater 13, continue degree of depth heating subsequently.Owing to entering wind of air preheater 13 and the temperature of Secondary Air improves, therefore than the wind and the Secondary Air that do not improve temperature and enter air preheater 13, when reach equal design temperature in air preheater 13 time, use the needed heat of air preheater 13 of the present utility model to reduce, thereby can reduce the caloric receptivity of boiler 14, fuel saving, produces economic benefit.
Meanwhile, the air cooling circulating water that enters indirect air cooling unit waste heat recovering device of the present utility model can be cooled in wind heater 1 and Secondary Air heater 2, and temperature reduces, and is sent back to the recirculating cooling water system of indirect air cooling unit again, recycles.Therefore, under the condition of the identical entering water temp of maintenance surface condenser 10 and flow, the utility model can reduce the heat exchange amount of Air-Cooling Island 11, thereby makes indirect air cooling unit use the heating surface that can suitably reduce Air-Cooling Island 11 after the utility model, the investment of saving Air-Cooling Island.
The backwater mouth of indirect air cooling unit waste heat recovering device of the present utility model can be arranged between the air cooling circulating water outlet of surface condenser 10 and the air cooling circulating water entrance of Air-Cooling Island 11 (before being Air-Cooling Island 11), also can be arranged on (after being Air-Cooling Island 11) between the air cooling circulating water outlet of Air-Cooling Island 11 and the air cooling circulating water entrance of surface condenser 10.Wherein, when backwater mouth is arranged on Air-Cooling Island 11 when rear, the temperature of backwater mouth backwater otherwise higher than the temperature of the air cooling circulating water of the air cooling circulating water outlet of Air-Cooling Island 11, in order to avoid improve the temperature that surface condenser 10 is intake, reduce the internal efficiency of steam turbine 15.
Wind heater 1 and the Secondary Air heater 2 of indirect air cooling unit waste heat recovering device of the present utility model are a kind of air-to-water heat exchangers, its heating surface can adopt the heat exchanging tube such as fin tube or light pipe of spiral fin coil, H type extended surface tube, steel-aluminum composite fin tube, other form, circulating water is flowed in heat exchanging tube, and air flows outward at heat exchanging tube.In the time that wind heater 1 and Secondary Air heater 2 adopt the heat exchanging tube of outer watchband extended surface of fin tube or other form, can strengthen air-side heat exchanger, make the compact structure of heater.Under normal conditions, the circulating water in heat exchanging tube can be higher than 30 DEG C of left and right of external air temperature, and circulating water is delivered to the air outside heat exchanging tube by heating surface by heat, and wind and Secondary Air are heated thus, and temperature raises.Meanwhile, the circulating water in heat exchanging tube is cooling by air, produces the lower circulating water (cold water) of temperature.The circulating water that this temperature is lower is sent back to the recirculating cooling water system of indirect air cooling unit again through system pipeline 8.
On the system pipeline 8 that indirect air cooling unit waste heat recovering device of the present utility model is connected with wind heater 1 and Secondary Air heater 2 at intake, can be provided with system inlet valve 6, on the system pipeline 8 being connected with wind heater 1 and Secondary Air heater 2 at backwater mouth, can be provided with system outlet valve 7, simultaneously on the system pipeline 8 between system outlet valve 7 and wind heater 1 and Secondary Air heater 2, also can be provided with dewatering outlet, and can be provided with discharging valve 9 at dewatering outlet place.Indirect air cooling unit waste heat recovering device of the present utility model is by arranging system inlet valve 6 and system outlet valve 7, makes the whole device can be out of service at any time.In the time of accident conditions, can be by being connected between system inlet valve 6 and system outlet valve 7 shut-off meanss and recirculating cooling water system, open again discharging valve 9 circulating water in device is got rid of, can make device out of service rapidly, thereby ensure the safe operation of whole indirect air cooling unit.
Because the flow of a wind and the flow of Secondary Air differ larger conventionally, therefore need the flow of the circulating water to entering wind heater 1 and Secondary Air heater 2 to regulate and distribute, the flow that makes to enter the circulating water of wind heater 1 and Secondary Air heater 2 mates with the air quantity of wind and Secondary Air.Indirect air cooling unit waste heat recovering device of the present utility model can be by arranging wind heater water side modulating valve 3 one time on the system pipeline 8 being connected with wind heater 1 at intake, Secondary Air heater water side modulating valve 4 is set on the system pipeline 8 being connected with Secondary Air heater 2 at intake, wind heater 1 and Secondary Air heater 2 are front first carries out regulating and distributing of flow by wind heater water side modulating valve 3 and Secondary Air heater water side modulating valve 4 entering to make circulating water, thereby the circulating water flow that makes to enter wind heater 1 and Secondary Air heater 2 mates with the air quantity of wind and Secondary Air.
On the system pipeline 8 that indirect air cooling unit waste heat recovering device of the present utility model is connected with wind heater 1 and Secondary Air heater 2 at intake, can be provided with supercharging recycle pump 5, to provide enough power that air cooling circulating water is forced to send into wind heater 1 and Secondary Air heater 2, and adding heat primary air and Secondary Air and getting back to after cooling the recirculating cooling water system of indirect air cooling unit.Because backwater mouth of the present utility model can be arranged on before Air-Cooling Island 11, also can be arranged on after Air-Cooling Island 11, in the time that the pressure difference between intake in the recirculating cooling water system of indirect air cooling unit and backwater mouth position meets device circulation needs, supercharging recycle pump 5 can be set.For example intake is positioned at before Air-Cooling Island, and backwater mouth is positioned at after Air-Cooling Island, now between intake and backwater mouth, has pressure difference, in the time that this pressure difference meets device circulation needs, supercharging recycle pump 5 can be set.
In the utility model one preferred embodiment, as shown in Figure 1, a wind heater 1 of indirect air cooling unit waste heat recovering device of the present utility model is to be connected to same system inlet valve 6 by system pipeline 8 rear its one end in parallel by same system pipeline 8 with Secondary Air heater 2, be connected to intake by system inlet valve 6 again, its the other end is connected to same system outlet valve 7 by same system pipeline 8, then is connected to backwater mouth by system outlet valve 7.It has a dewatering outlet, and this dewatering outlet can be arranged at and make on wind heater 1 system pipeline 8 in parallel with Secondary Air heater 2, or is arranged on the system pipeline 8 that a wind heater 1 is connected with system outlet valve 7 after in parallel with Secondary Air heater 2.In this preferred embodiment, dewatering outlet is to be arranged on the pipeline being connected with the water outlet of Secondary Air heater 2 in the system pipeline 8 that makes wind heater 1 and 2 parallel connections of Secondary Air heater.Wherein, in this preferred embodiment, making in wind heater 1 system pipeline 8 in parallel with Secondary Air heater 2, on the system pipeline 8 being connected with the water intake of a wind heater 1, be also provided with wind heater water side modulating valve 3 one time, on the system pipeline 8 being connected with the water intake of Secondary Air heater 2, be also provided with Secondary Air heater water side modulating valve 4.And be also provided with supercharging recycle pump 5 on the system pipeline 8 being connected with system inlet valve 6 after a wind heater 1 is in parallel with Secondary Air heater 2.
The indirect air cooling unit waste heat recovering device of this preferred embodiment is in the time of normal work, system inlet valve 6 and system outlet valve 7 are opened, the air cooling circulating water (hot water) of the recirculating cooling water system of indirect air cooling unit enters system pipeline 8 by intake, and be pushed and deliver to the wind heater 1 and the Secondary Air heater 2 that in air channel of boiler 14 and secondary flue, arrange by supercharging recycle pump 5, add heat primary air and Secondary Air.Meanwhile, hot water is cooling by wind and Secondary Air in wind heater 1 and Secondary Air heater 2, is pushed into again system pipeline 8, and is sent back to recirculating cooling water system by backwater mouth by supercharging recycle pump 5, recycles.Wherein, wind heater water side modulating valve 3 and Secondary Air heater water side modulating valve 4 that the utility model can arrange by the water side entrance place of wind heater 1 and Secondary Air heater 2 carry out regulating water-quantity, thereby control the temperature rise of wind and Secondary Air, and with the temperature of time-control apparatus backwater.
When in the case of different unit loads, the air quantity of wind and Secondary Air can change, in this preferred embodiment, can carry out by 5 frequency conversions of supercharging recycle pump the total discharge requirement of wind heater 1 and Secondary Air heater 2 water sides, adapt to different load variations with this.
Certainly, the utility model is not as limit, for example: in another embodiment of the present utility model, wind heater 1 and the Secondary Air heater 2 of indirect air cooling unit waste heat recovering device of the present utility model also can be parallel between intake and backwater mouth by different system pipeline 8 respectively, in indirect air cooling unit waste heat recovering device of the present utility model, the system pipeline 8 that wind heater 1 is connected with intake and backwater mouth is separate with the system pipeline 8 that Secondary Air heater 2 is connected with intake and backwater mouth, but both share same intake and backwater mouth.Now, make the system pipeline 8 that wind heater 1 is connected with intake and backwater mouth can be provided with a system inlet valve 6, a system outlet valve 7, a dewatering outlet, a supercharging recycle pump 5 and a wind heater water side modulating valve 3, and on the system pipeline 8 that Secondary Air heater 2 is connected with intake and backwater mouth, can be provided with another system inlet valve 6, another system outlet valve 7, another dewatering outlet, another supercharging recycle pump 5 and Secondary Air heater water side modulating valve 4.Again for example: in another embodiment of the present utility model, although wind heater 1 and the Secondary Air heater 2 of indirect air cooling unit waste heat recovering device of the present utility model are to be also parallel between intake and backwater mouth by different system pipeline 8 respectively, in indirect air cooling unit waste heat recovering device of the present utility model, the system pipeline 8 that wind heater 1 is connected with intake and backwater mouth is separate with the system pipeline 8 that Secondary Air heater 2 is connected with intake and backwater mouth, but both are connected with the recirculating cooling water system of indirect air cooling unit with backwater mouth by different intakes respectively, be provided with two intakes and two backwater mouths connecting on the surface condenser 10 of recirculating cooling water system of indirect air cooling unit and the pipeline of Air-Cooling Island 11.Now, make the system pipeline 8 that wind heater 1 is connected with intake and backwater mouth also can be provided with a system inlet valve 6, a system outlet valve 7, a dewatering outlet, a supercharging recycle pump 5 and a wind heater water side modulating valve 3, and on the system pipeline 8 that Secondary Air heater 2 is connected with intake and backwater mouth, also can be provided with another system inlet valve 6, another system outlet valve 7, another dewatering outlet, another supercharging recycle pump 5 and Secondary Air heater water side modulating valve 4.
Thermal technology's measuring point of indirect air cooling unit waste heat recovering device of the present utility model, as: thermal resistor, pressure transmitter, differential pressure transmitter, flowmeter, humidity detector etc., comprise all DCS of accessible generator set of supporting regulating equipment, realize automation control.
The utility model relates to a kind of indirect air cooling unit waste heat recovering device, to utilize the air cooling circulating water of closed-type circulating cooling water system of indirect air cooling generator set as thermal source, by wind and the Secondary Air of heater heating boiler, and in wind air channel and Secondary Air air channel, point be arranged wind heater and Secondary Air heater.Wherein the heat-exchanging element of heater can adopt fin tube or the light pipe of spiral fin coil, H type extended surface tube, steel-aluminum composite fin tube, other form, and air cooling circulating water flows in pipe, and wind and Secondary Air are mobile outside pipe, realize heat exchange.Indirect air cooling unit waste heat recovering device of the present utility model operates steadily, safety, environmental protection, has good energy-saving effect.
The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, but not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when can utilizing the method for above-mentioned announcement and technology contents to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be the content that does not depart from technical solutions of the utility model, any simple modification of above embodiment being done according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (9)
1. an indirect air cooling unit waste heat recovering device, is characterized in that it comprises: a wind heater (1), Secondary Air heater (2) and system pipeline (8); Wherein, a described wind heater (1) is arranged in a wind air channel; Described Secondary Air heater (2) is arranged in Secondary Air air channel; Be provided with intake and backwater mouth connecting on the surface condenser (10) of recirculating cooling water system of described indirect air cooling unit and the pipeline of Air-Cooling Island (11); Wherein, described intake is arranged on the pipeline at air cooling circulating water outlet place of described surface condenser (10); Described backwater mouth is arranged on the pipeline between the air cooling circulating water outlet of described surface condenser (10) and the air cooling circulating water entrance of described Air-Cooling Island (11), and be positioned between described intake and the air cooling circulating water entrance of described Air-Cooling Island (11), or be arranged on the pipeline between the air cooling circulating water outlet of described Air-Cooling Island (11) and the air cooling circulating water entrance of described surface condenser (10); A described wind heater (1) and described Secondary Air heater (2) are parallel between described intake and described backwater mouth by described system pipeline (8).
2. indirect air cooling unit waste heat recovering device according to claim 1, is provided with system inlet valve (6) on the described system pipeline (8) that it is characterized in that being wherein connected with a described wind heater (1) and described Secondary Air heater (2) at described intake; On the described system pipeline (8) being connected with a described wind heater (1) and described Secondary Air heater (2) at described backwater mouth, be provided with system outlet valve (7), on the described system pipeline (8) between described system outlet valve (7) and a described wind heater (1) and described Secondary Air heater (2), be also provided with dewatering outlet, be provided with discharging valve (9) at described dewatering outlet place.
3. indirect air cooling unit waste heat recovering device according to claim 2, it is characterized in that a wherein said wind heater (1) and described Secondary Air heater (2) are to be connected to same described system inlet valve (6) by described system pipeline (8) rear its one end in parallel by same described system pipeline (8), be connected to described intake by described system inlet valve (6) again, its the other end is connected to same described system outlet valve (7) by same described system pipeline (8), then is connected to described backwater mouth by described system outlet valve (7); Described dewatering outlet is one, be arranged at and make a described wind heater (1) the described system pipeline (8) in parallel with described Secondary Air heater (2) upper, or be arranged at a described wind heater (1) with on described Secondary Air heater (2) the rear described system pipeline (8) being connected with described system outlet valve (7) in parallel.
4. indirect air cooling unit waste heat recovering device according to claim 3, it is characterized in that wherein making in a described wind heater (1) the described system pipeline (8) in parallel with described Secondary Air heater (2), on the described system pipeline (8) being connected with the water intake of a described wind heater (1), be provided with a wind heater water side modulating valve (3), on the described system pipeline (8) being connected with the water intake of described Secondary Air heater (2), be provided with Secondary Air heater water side modulating valve (4).
5. according to the indirect air cooling unit waste heat recovering device described in claim 3 or 4, on the described system pipeline (8) that it is characterized in that being wherein connected with described system inlet valve (6), be provided with supercharging recycle pump (5) after a described wind heater (1) is in parallel with described Secondary Air heater (2).
6. indirect air cooling unit waste heat recovering device according to claim 1 and 2, is provided with a wind heater water side modulating valve (3) on the described system pipeline (8) that it is characterized in that being wherein connected with a described wind heater (1) at described intake; On the described system pipeline (8) being connected with described Secondary Air heater (2) at described intake, be provided with Secondary Air heater water side modulating valve (4).
7. indirect air cooling unit waste heat recovering device according to claim 6, is provided with supercharging recycle pump (5) on the described system pipeline (8) that it is characterized in that being wherein connected with a described wind heater (1) and described Secondary Air heater (2) at described intake.
8. indirect air cooling unit waste heat recovering device according to claim 1 and 2, is provided with supercharging recycle pump (5) on the described system pipeline (8) that it is characterized in that being wherein connected with a described wind heater (1) and described Secondary Air heater (2) at described intake.
9. indirect air cooling unit waste heat recovering device according to claim 1, is characterized in that the heating surface of a wherein said wind heater (1) and described Secondary Air heater (2) adopts fin tube or the light pipe of spiral fin coil, H type extended surface tube, steel-aluminum composite fin tube, other form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320728968.7U CN203669945U (en) | 2013-11-18 | 2013-11-18 | Waste heat recovery device for indirect air cooling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320728968.7U CN203669945U (en) | 2013-11-18 | 2013-11-18 | Waste heat recovery device for indirect air cooling unit |
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| Publication Number | Publication Date |
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| CN203669945U true CN203669945U (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320728968.7U Withdrawn - After Issue CN203669945U (en) | 2013-11-18 | 2013-11-18 | Waste heat recovery device for indirect air cooling unit |
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| CN (1) | CN203669945U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653241A (en) * | 2013-11-18 | 2015-05-27 | 舒少辛 | Waste heat recovery device for indirect air-cooling unit |
-
2013
- 2013-11-18 CN CN201320728968.7U patent/CN203669945U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653241A (en) * | 2013-11-18 | 2015-05-27 | 舒少辛 | Waste heat recovery device for indirect air-cooling unit |
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