CN104048452A - Sectional type utilizing device for flue gas waste heat - Google Patents
Sectional type utilizing device for flue gas waste heat Download PDFInfo
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- CN104048452A CN104048452A CN201410295509.3A CN201410295509A CN104048452A CN 104048452 A CN104048452 A CN 104048452A CN 201410295509 A CN201410295509 A CN 201410295509A CN 104048452 A CN104048452 A CN 104048452A
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Abstract
The invention relates to a waste heat utilizing device, and discloses a sectional type utilizing device for flue gas waste heat. The device comprises a hot water type lithium bromide unit. The lithium bromide unit is communicated with a high-temperature section heat exchanger and a lower-temperature section heat exchanger. The high-temperature section heat exchanger is communicated with the lower-temperature section heat exchanger. According to the sectional type utilizing device for flue gas waste heat, the final exhaust gas temperature is low, sensible heat and latent heat of vaporization of flue gas can be sufficiently recycled, low-temperature heat source water temperature and flow can be adjusted, the gas exhaust temperature of the low-temperature section heat exchanger is reduced to below the dew point, latent heat of vaporization of the flue gas is effectively utilized, and distributed energy system efficiency is significantly improved. Process water temperature and flow can be controlled, the heat source water inlet section of the high-temperature section heat exchanger and the low-temperature heat source water inlet pipe section of the low-temperature section heat exchanger are provided with adjusting valves respectively, the flow of the high-temperature heat source water and low-temperature heat source water can be adjusted, and process water outlet temperature and flow and exhaust gas temperature of the low-temperature section heat exchanger can be effectively adjusted.
Description
Technical field
The present invention relates to residual heat using device, related in particular to fume afterheat segmented use device.
Background technology
At present, the generating equipment of combustion gas distributed energy is to be generally gas turbine or gas internal-combustion engine, and generating equipment smoke evacuation is further utilized by waste heat boiler or flue gas type Absorption Refrigerator.Fume afterheat utilizes equipment for avoiding cold end corrosion, general exhaust gas temperature 130 DEG C～more than 170 DEG C, in smoke evacuation, water vapour content is larger, this part steam is superheat state, its latent heat of vaporization is not used, and discharges with flue gas, sensible heat and latent heat losses are huge.Along with the progressively application in urban life, industrial production of combustion gas distributed energy, combustion gas distributed energy fume afterheat segmented heat pump use device starts application.
Have at present the mode that in gas distributed energy system waste heat boiler or flue gas type lithium bromide unit rear end, flue gas-hot water heat exchanger is set and further reduces cigarette temperature, but this mode of utilizing has the following disadvantages:
(1) for avoiding the cold end corrosion of device, flue gas-hot water heat exchanger design temperature is generally more than 100 DEG C, and fume afterheat is underutilized;
(2) final exhaust gas temperature is higher than flue gas dew point temperature, and steam gasification latent heat is utilized;
(3) flue gas-hot water heat exchanger performance-adjustable of exerting oneself is poor.
Summary of the invention
The problem that the present invention need to solve is that gas distributed energy system waste heat boiler or flue gas type lithium bromide unit rear end arrange final exhaust gas temperature in flue gas-hot water heat exchanger higher than flue gas dew point temperature, steam gasification latent heat is utilized, and fume afterheat segmented use device is now provided.
In order to solve the problems of the technologies described above, the present invention is solved by following technical proposals:
Fume afterheat segmented use device, this device comprises hot water lithium bromide unit, and described hot water lithium bromide unit is communicated with high-temperature section heat exchanger, low-temperature zone heat exchanger respectively, and high-temperature section heat exchanger is communicated with low-temperature zone heat exchanger;
The high-temperature section heat exchanger smoke inlet pipe of high-temperature section heat exchanger is provided with smoke inlet valve, high-temperature section heat exchanger 3 is communicated with the hot water lithium bromide unit high temperature heat source water outlet pipe of hot water lithium bromide unit through high-temperature section heat exchanger high temperature heat source water inlet pipe, and is provided with high temperature heat source water regulating valve on this pipeline; High-temperature section heat exchanger is communicated with the hot water lithium bromide unit high temperature heat source water inlet pipe of hot water lithium bromide unit through high-temperature section heat exchanger high temperature heat source water outlet pipe;
High-temperature section heat exchanger is communicated with low-temperature zone heat exchanger through high-temperature section heat exchanger smoke outlet tube, the low-temperature zone heat exchanger smoke outlet tube of low-temperature zone heat exchanger is provided with low-temperature zone heat exchanger exhanst gas outlet valve, and low-temperature zone heat exchanger is provided with through low-temperature zone heat exchanger low-temperature heat source water outlet pipe and is communicated with the hot water lithium bromide Unit Low heat source water inlet tube of hot water lithium bromide unit; Low-temperature zone heat exchanger is communicated with the hot water lithium bromide Unit Low heat source water outlet of hot water lithium bromide unit by low-temperature zone heat exchanger low-temperature heat source water inlet pipe, and is provided with low-temperature heat source water regulating valve on this pipeline;
Hot water lithium bromide unit is communicated with respectively high-temperature section heat exchanger and low-temperature zone heat exchanger, can make full use of like this fume afterheat, meanwhile can be by the Risk Reduction of cold end corrosion to low-temperature zone heat exchanger, therefore low-temperature zone heat exchanger will adopt corrosion-resistant material to make, and the solidifying water outlet of low-temperature zone heat exchanger is set on low-temperature zone heat exchanger, can in time condensed water be got rid of, alleviate cold end corrosion.On high-temperature section heat exchanger smoke inlet pipe, be provided with the amount that smoke inlet valve can regulate flue gas at any time, high temperature heat source water regulating valve regulates the amount of high temperature heat source water, low-temperature zone heat exchanger smoke outlet tube is provided with low-temperature zone heat exchanger exhanst gas outlet valve and regulates the amount of exit flue gas, low-temperature heat source water regulating valve is the amount for regulating low-temperature heat source water, whole device adopts high-temperature section heat exchanger and low-temperature zone heat exchanger, high-temperature section heat exchanger is communicated with hot water lithium bromide unit respectively with low-temperature zone heat exchanger, form three mass-flow systems, in the process of whole device operation, can effectively reduce exhaust gas temperature, make full use of fume afterheat, on corresponding pipeline section, be provided with control valve and can control at any time the amount of high temperature heat source water and low-temperature heat source water, import and export is provided with the valve that flue gas regulates and regulates the amount of smoke entrance, whole system can not only make full use of the waste heat of flue gas, and can regulate at any time the amount of flue gas and high low-temperature heat source water, significantly improve distributed energy resource system efficiency.
Hot water lithium bromide set is that the lithium bromide unit that common use hot water is thermal source comprises generator, evaporimeter and condenser.Generator, evaporimeter and condenser are the necessary device in hot water lithium bromide unit, a series of processes such as fresh water (FW) will produce in hot water lithium bromide unit, evaporation, condensation.
As preferably, the pipeline that high-temperature section heat exchanger high temperature heat source water inlet pipe is communicated with hot water lithium bromide unit high temperature heat source water outlet pipe is provided with hot water lithium bromide unit high temperature heat source water outlet temperature meter and high temperature heat source water circulation water pump;
The pipeline that high-temperature section heat exchanger high temperature heat source water outlet pipe is communicated with hot water lithium bromide unit high temperature heat source water inlet pipe is provided with high temperature heat source water ga(u)ge, hot water lithium bromide unit high temperature heat source water inlet thermometer;
The pipeline that low-temperature zone heat exchanger low-temperature heat source water outlet pipe is communicated with hot water lithium bromide Unit Low heat source water inlet tube is provided with low-temperature heat source water ga(u)ge, hot water lithium bromide Unit Low heat source water inlet temperature meter;
The pipeline that low-temperature zone heat exchanger low-temperature heat source water inlet pipe is communicated with hot water lithium bromide Unit Low heat source water outlet is provided with hot water lithium bromide Unit Low heat source water outlet temperature meter and low-temperature heat source water circulation water pump;
The hot water lithium bromide unit fresh water (FW) inlet tube end of hot water lithium bromide unit is provided with fresh water (FW) water circulating pump.At high temperature heat source water oral siphon, on the pipeline that low-temperature heat source water outlet pipe is communicated with hot water lithium bromide unit, be all provided with thermometer, water flow meter, effectively observed temperature and current, high-temperature section heat exchanger high temperature heat source water inlet pipe is provided with high temperature heat source water circulation water pump with the pipeline that hot water lithium bromide unit high temperature heat source water outlet pipe is communicated with, for the mobile power that provides of high temperature heat source water, low-temperature zone heat exchanger low-temperature heat source water inlet pipe is provided with low-temperature heat source water circulation water pump with the pipeline that hot water lithium bromide Unit Low heat source water outlet is communicated with, for the mobile power that provides of low-temperature heat source water.
As preferably, low-temperature zone heat exchanger is provided with the solidifying water outlet of low-temperature zone heat exchanger.The solidifying water outlet of low-temperature zone heat exchanger can be got rid of condensed water in time, alleviates cold end corrosion.
As preferably, the hot water lithium bromide unit fresh water (FW) outlet of hot water lithium bromide unit is provided with fresh water (FW) flowmeter and hot water lithium bromide unit fresh water (FW) outlet temperature meter.Fresh water (FW) flowmeter is used for observing the flow of fresh water (FW), and hot water lithium bromide unit fresh water (FW) outlet temperature meter is used for observing the temperature of fresh water (FW) after treatment.
The present invention, owing to having adopted above technical scheme, has significant technique effect:
1. the final exhaust gas temperature of apparatus of the present invention is low, fully sensible heat and the latent heat of vaporization of recovered flue gas, and can regulate low-temperature heat source coolant-temperature gage and flow, low-temperature zone heat exchanger exhaust gas temperature is down to below dew point, effectively utilize the flue gas latent heat of vaporization, significantly improve distributed energy resource system efficiency;
2. the temperature of fresh water (FW) and flow can be controlled, the low-temperature heat source water inlet pipe pipeline section of the heat source water entrance of high-temperature section heat exchanger and low-temperature zone heat exchanger is respectively arranged with control valve, can regulate the flow of high temperature heat source water and low-temperature heat source water, and effectively leaving water temperature and flow and the low-temperature zone heat exchanger exhaust gas temperature of adjusting process water;
3. the present invention adopts segmented heat exchanger, can effectively reduce exhaust gas temperature, make full use of fume afterheat, at the same time can be by the risk control of cold end corrosion on low-temperature zone heat exchanger, low-temperature zone heat exchanger adopts corrosion-resistant material, can get rid of in time condensed water, alleviates cold end corrosion;
4. whole device has been realized the water system that utilizes heat pump mode Mist heat recovering, this system is made up of three kinds of water systems, fresh water (FW), low-temperature heat source water and high temperature heat source water, each water system is separate, and the temperature of each water system and flow can regulate as required.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of fume afterheat segmented use device of the present invention.
Label declaration: 1-smoke inlet valve, 2-high-temperature section heat exchanger smoke inlet pipe, 3-high-temperature section heat exchanger, 4-high-temperature section heat exchanger exhanst gas outlet thermometer, 5-high-temperature section heat exchanger smoke outlet tube, 6-low-temperature zone heat exchanger, 7-low-temperature zone heat exchanger smoke outlet tube, 8-low-temperature zone heat exchanger exhanst gas outlet valve, 9-hot water lithium bromide unit high temperature heat source water outlet pipe, 10-high temperature heat source water circulation water pump, 11-high temperature heat source water regulating valve, 12-hot water lithium bromide unit high temperature heat source water outlet temperature meter, 13-high-temperature section heat exchanger high temperature heat source water inlet pipe, 14-high-temperature section heat exchanger high temperature heat source water outlet pipe, 15-high temperature heat source water ga(u)ge, 16-hot water lithium bromide unit high temperature heat source water inlet thermometer, 17-hot water lithium bromide unit high temperature heat source water inlet pipe, 18-hot water lithium bromide Unit Low heat source water outlet, 19-low-temperature heat source water circulation water pump, 20-low-temperature heat source water regulating valve, 21-hot water lithium bromide Unit Low heat source water outlet temperature meter, 22-low-temperature zone heat exchanger low-temperature heat source water inlet pipe, 23-low-temperature zone heat exchanger low-temperature heat source water outlet pipe, 24-low-temperature heat source water ga(u)ge, 25-hot water lithium bromide Unit Low heat source water inlet temperature meter, 26-hot water lithium bromide Unit Low heat source water inlet tube, 27-low-temperature zone heat exchanger coagulates water outlet, 28-fresh water (FW) water circulating pump, 29-hot water lithium bromide unit fresh water (FW) inlet tube, 30-hot water lithium bromide unit, 31-hot water lithium bromide unit fresh water (FW) outlet, 32-fresh water (FW) flowmeter, 33-hot water lithium bromide unit fresh water (FW) outlet temperature meter.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, and following examples are explanation of the invention and the present invention is not limited to following examples.
Embodiment 1:
Fume afterheat segmented use device, as shown in Figure 1, this device comprises hot water lithium bromide unit 30, described hot water lithium bromide unit 30 is communicated with respectively high-temperature section heat exchanger 3 and low-temperature zone heat exchanger 6, and high-temperature section heat exchanger 3 is communicated with low-temperature zone heat exchanger 6 through high-temperature section heat exchanger smoke outlet tube 5.
High-temperature section heat exchanger smoke inlet pipe 2 pipeline sections of high-temperature section heat exchanger 3 are provided with smoke inlet valve 1, flue gas enters in high-temperature section heat exchanger 3 by smoke inlet valve 1, high-temperature section heat exchanger 3 is communicated with the hot water lithium bromide unit high temperature heat source water outlet pipe 9 of hot water lithium bromide unit 30 by high-temperature section heat exchanger high temperature heat source water inlet pipe 13, and is provided with successively hot water lithium bromide unit high temperature heat source water outlet temperature meter 12, high temperature heat source water regulating valve 11 and high temperature heat source water circulation water pump 10 on the pipeline being communicated with; High-temperature section heat exchanger 3 is communicated with the hot water lithium bromide unit high temperature heat source water inlet pipe 17 of hot water lithium bromide unit 30 by high-temperature section heat exchanger high temperature heat source water outlet pipe 14, on the pipeline being communicated with, is provided with successively high temperature heat source water ga(u)ge 15, hot water lithium bromide unit high temperature heat source water inlet thermometer 16;
The pipeline section of the low-temperature zone heat exchanger smoke outlet tube 7 of low-temperature zone heat exchanger 6 is provided with low-temperature zone heat exchanger exhanst gas outlet valve 8, low-temperature zone heat exchanger 6 is provided with the solidifying water outlet 27 of low-temperature zone heat exchanger, the solidifying water outlet 27 of low-temperature zone heat exchanger can be got rid of condensed water in time, alleviates cold end corrosion.Low-temperature zone heat exchanger 6 is provided with through low-temperature zone heat exchanger low-temperature heat source water outlet pipe 23 and is communicated with the hot water lithium bromide Unit Low heat source water inlet tube 26 of hot water lithium bromide unit 30, is provided with successively low-temperature heat source water ga(u)ge 24, hot water lithium bromide Unit Low heat source water inlet temperature meter 25 on the pipeline of connection; Low-temperature zone heat exchanger 6 is communicated with the hot water lithium bromide Unit Low heat source water outlet 18 of hot water lithium bromide unit 30 by low-temperature zone heat exchanger low-temperature heat source water inlet pipe 22, and is provided with successively hot water lithium bromide Unit Low heat source water outlet temperature meter 21, low-temperature heat source water regulating valve 20 and low-temperature heat source water circulation water pump 19 on the pipeline being communicated with;
Hot water lithium bromide unit fresh water (FW) inlet tube 29 ends of hot water lithium bromide unit 30 are provided with fresh water (FW) water circulating pump 28, on hot water lithium bromide unit fresh water (FW) outlet 31 pipelines of hot water lithium bromide unit 30, be provided with successively fresh water (FW) flowmeter 32 and hot water lithium bromide unit fresh water (FW) outlet temperature meter 33, hot water lithium bromide unit 30 devices comprise generator, evaporimeter and condenser.
The present invention is based on heat pump principle, adopt modular segmented heat exchanger, high-temperature section heat exchanger 3 utilizes flue gas by the temperature heating of high temperature heat source water, and the high temperature heat source water after heating is as the driving heat source of hot water lithium bromide unit 30; Low-temperature zone heat exchanger 6 utilizes flue gas to reduce the temperature of low-temperature heat source water, low-temperature heat source water after reduction temperature is as the low-temperature heat source water of hot water lithium bromide unit 30, then in 30 heat releases of hot water lithium bromide unit, the present invention utilizes heat pump techniques that fresh water (FW) is heated, and can, by regulating the flow of high-temperature water and water at low temperature, carry out leaving water temperature and low-temperature zone heat exchanger 6 exhaust gas temperatures of effective adjusting process water.
Operation principle: when whole system operation, flue gas enters in high-temperature section heat exchanger 3 by high-temperature section heat exchanger smoke inlet pipe 2, flue gas is in the interior heat release of high-temperature section heat exchanger 3, reduce temperature, flue gas after cooling is discharged from high-temperature section heat exchanger smoke outlet tube 5, and high-temperature section heat exchanger exhanst gas outlet thermometer 4 can be observed the flue-gas temperature of discharging from high-temperature section heat exchanger smoke outlet tube 5, so that feedback fume afterheat utilizes situation, thereby allow system that temperature is controlled at higher than the theoretical dew point of flue gas more than 10 DEG C; The flue gas of discharging from high-temperature section heat exchanger smoke outlet tube 5 enters low-temperature zone heat exchanger 6 and continues heat release to dew point, can produce condensed water simultaneously, remaining flue gas is discharged by low-temperature zone heat exchanger smoke outlet tube 7, the condensed water producing in low-temperature zone heat exchanger 6 is drained in time by the solidifying water outlet 27 of low-temperature zone heat exchanger, alleviates the cold end corrosion of equipment;
High temperature heat source water is under the promotion of high temperature heat source water circulation water pump 10, enter the interior absorption flue gas of high-temperature section heat exchanger 3 institute liberated heat by high-temperature section heat exchanger high temperature heat source water inlet pipe 13, high temperature heat source coolant-temperature gage raises, high temperature heat source water after intensification flows out by the high-temperature section heat exchanger high temperature heat source water outlet pipe 14 of high-temperature section heat exchanger 3, enter in hot water lithium bromide unit 30 by hot water lithium bromide unit high temperature heat source water inlet pipe 17, and as the driving heat source of hot water lithium bromide unit 30, heat release in hot water lithium bromide unit 30, high temperature heat source water after cooling flows out by the high temperature heat source water outlet pipe 9 of hot water lithium bromide unit 30, and again enter high-temperature section heat exchanger 3 under the promotion of high temperature heat source water circulation water pump 10 in, absorb flue gas liberated heat and heat up, so iterative cycles,
Under the promotion of low-temperature heat source water circulation water pump 19, low-temperature heat source water enters in low-temperature zone heat exchanger 6 by low-temperature zone heat exchanger low-temperature heat source water inlet pipe 22, low-temperature heat source water conservancy heats up by sensible heat and the latent heat of vaporization of flue gas, after intensification, flow out by low-temperature zone heat exchanger low-temperature heat source water outlet pipe 23, then enter in hot water lithium bromide unit 30, and as the low-temperature heat source water of hot water lithium bromide unit, in 30 heat releases of hot water lithium bromide unit, low-temperature heat source water after cooling flows out by hot water lithium bromide Unit Low heat source water outlet 18, and again enter low-temperature zone heat exchanger 6 under the promotion of low-temperature heat source water circulation water pump 19 in, heat absorption heats up, so iterative cycles,
Fresh water (FW) enters in hot water lithium bromide unit 30 by hot water lithium bromide unit fresh water (FW) inlet tube 29 under the promotion of fresh water (FW) water circulating pump 28, heat absorption and intensification, fresh water (FW) after intensification flows out through hot water lithium bromide unit fresh water (FW) outlet 31, be delivered to user and locate heat release, then under the promotion of fresh water (FW) water circulating pump 28, circulate.
High temperature heat source water and low-temperature heat source discharge are determined by hot water lithium bromide unit 30 design parameters, and can be by regulating high temperature heat source water regulating valve 11 and low-temperature heat source water regulating valve 20 to control, thereby control the measured temperature of high-temperature section heat exchanger exhanst gas outlet thermometer 4, ensure, in high-temperature section heat exchanger 3, condensation does not occur, flue-gas temperature reduces as far as possible simultaneously.
When the data that export required hot water lithium bromide unit fresh water (FW) outlet temperature meter 33 when fresh water (FW) flow 32 or fresh water (FW) change, device can regulate high temperature heat source discharge and low-temperature heat source discharge automatically.
In addition, it should be noted that, the specific embodiment described in this description, shape, institute's title of being named etc. of its parts and components can be different.All equivalence or simple change of doing according to described structure, feature and the principle of patent design of the present invention, are included in the protection domain of patent of the present invention.Those skilled in the art can make various amendments or supplement or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, all should belong to protection scope of the present invention.
Claims (4)
1. fume afterheat segmented use device, this device comprises hot water lithium bromide unit (30), it is characterized in that: described hot water lithium bromide unit (30) is communicated with high-temperature section heat exchanger (3), low-temperature zone heat exchanger (6) respectively, high-temperature section heat exchanger (3) is communicated with low-temperature zone heat exchanger (6);
The high-temperature section heat exchanger smoke inlet pipe (2) of high-temperature section heat exchanger (3) is provided with smoke inlet valve (1), high-temperature section heat exchanger (3) is communicated with the hot water lithium bromide unit high temperature heat source water outlet pipe (9) of hot water lithium bromide unit (30) through high-temperature section heat exchanger high temperature heat source water inlet pipe (13), and on this pipeline, is provided with high temperature heat source water regulating valve (11); High-temperature section heat exchanger (3) is communicated with the hot water lithium bromide unit high temperature heat source water inlet pipe (17) of hot water lithium bromide unit (30) through high-temperature section heat exchanger high temperature heat source water outlet pipe (14);
High-temperature section heat exchanger (3) is communicated with low-temperature zone heat exchanger (6) through high-temperature section heat exchanger smoke outlet tube (5), the low-temperature zone heat exchanger smoke outlet tube (7) of low-temperature zone heat exchanger (6) is provided with low-temperature zone heat exchanger exhanst gas outlet valve (8), and low-temperature zone heat exchanger (6) is provided with through low-temperature zone heat exchanger low-temperature heat source water outlet pipe (23) and is communicated with the hot water lithium bromide Unit Low heat source water inlet tube (26) of hot water lithium bromide unit (30); Low-temperature zone heat exchanger (6) is communicated with the hot water lithium bromide Unit Low heat source water outlet (18) of hot water lithium bromide unit (30) by low-temperature zone heat exchanger low-temperature heat source water inlet pipe (22), and on this pipeline, is provided with low-temperature heat source water regulating valve (20).
2. fume afterheat segmented use device according to claim 1, is characterized in that: the pipeline that high-temperature section heat exchanger high temperature heat source water inlet pipe (13) is communicated with hot water lithium bromide unit high temperature heat source water outlet pipe (9) is provided with hot water lithium bromide unit high temperature heat source water outlet temperature meter (12) and high temperature heat source water circulation water pump (10);
The pipeline that high-temperature section heat exchanger high temperature heat source water outlet pipe (14) is communicated with hot water lithium bromide unit high temperature heat source water inlet pipe (17) is provided with high temperature heat source water ga(u)ge (15), hot water lithium bromide unit high temperature heat source water inlet thermometer (16);
The pipeline that low-temperature zone heat exchanger low-temperature heat source water outlet pipe (23) is communicated with hot water lithium bromide Unit Low heat source water inlet tube (26) is provided with low-temperature heat source water ga(u)ge (24), hot water lithium bromide Unit Low heat source water inlet temperature meter (25);
The pipeline that low-temperature zone heat exchanger low-temperature heat source water inlet pipe (22) is communicated with hot water lithium bromide Unit Low heat source water outlet (18) is provided with hot water lithium bromide Unit Low heat source water outlet temperature meter (21) and low-temperature heat source water circulation water pump (19);
Hot water lithium bromide unit fresh water (FW) inlet tube (29) end of hot water lithium bromide unit (30) is provided with fresh water (FW) water circulating pump (28).
3. fume afterheat segmented use device according to claim 2, is characterized in that: low-temperature zone heat exchanger (6) is provided with the solidifying water outlet (27) of low-temperature zone heat exchanger.
4. fume afterheat segmented use device according to claim 2, is characterized in that: the hot water lithium bromide unit fresh water (FW) outlet (31) of hot water lithium bromide unit (30) is provided with fresh water (FW) flowmeter (32) and hot water lithium bromide unit fresh water (FW) outlet temperature meter (33).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410295509.3A CN104048452A (en) | 2014-06-26 | 2014-06-26 | Sectional type utilizing device for flue gas waste heat |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410295509.3A CN104048452A (en) | 2014-06-26 | 2014-06-26 | Sectional type utilizing device for flue gas waste heat |
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| CN201410295509.3A Pending CN104048452A (en) | 2014-06-26 | 2014-06-26 | Sectional type utilizing device for flue gas waste heat |
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| CN107401768A (en) * | 2016-05-19 | 2017-11-28 | 华电电力科学研究院 | A kind of heating system and its method using heat pump depth Mist heat recovering |
| CN109737687A (en) * | 2018-12-04 | 2019-05-10 | 天津钢铁集团有限公司 | The technical cooling water control system of accurate temperature controlling |
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Application publication date: 20140917 |