CN215216196U - Gas turbine power plant boiler tail flue gas waste heat recovery system of recycling - Google Patents

Gas turbine power plant boiler tail flue gas waste heat recovery system of recycling Download PDF

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Publication number
CN215216196U
CN215216196U CN202120889784.3U CN202120889784U CN215216196U CN 215216196 U CN215216196 U CN 215216196U CN 202120889784 U CN202120889784 U CN 202120889784U CN 215216196 U CN215216196 U CN 215216196U
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water
flue gas
waste heat
cooling tower
power plant
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CN202120889784.3U
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Inventor
张先提
金蕾
黄燕娜
张旭明
王春磊
袁兢
王琳
黄成龙
杨锋斌
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China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
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China Energy Engineering Group Guangdong Electric Power Design Institute Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • Y02A30/274Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems
    • Y02B30/625Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration

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Abstract

The utility model relates to a boiler waste heat recovery utilizes technical field, discloses a gas turbine power plant boiler afterbody waste heat recovery system of recycling of flue gas, it includes absorption cold water machine group, cooling tower, water collector, water knockout drum and is used for absorbing the low temperature economizer of boiler afterbody flue gas, the low temperature economizer the cooling tower the water collector with the water knockout drum respectively with absorption cold water machine group link, the water collector with the water knockout drum still is connected with the return water pipe way of air conditioner respectively. The utility model discloses make full use of the waste heat energy source of gas turbine power plant boiler afterbody flue gas to use it in preparing of air conditioner refrigerated water, have energy saving and emission reduction's effect.

Description

Gas turbine power plant boiler tail flue gas waste heat recovery system of recycling
Technical Field
The utility model relates to a boiler waste heat recovery utilizes technical field, especially relates to a gas turbine power plant boiler afterbody flue gas waste heat recovery system of recycling.
Background
With the development of economy and the increase of energy consumption in China, energy-saving emission reduction technology and clean energy utilization are particularly important, gas turbine power plants develop rapidly in recent years, the utilization efficiency of energy can be effectively improved by recovering waste heat from tail gas of a gas boiler, the power utilization efficiency of the power plants can be improved, and meanwhile, the pollution to the environment can be reduced.
The temperature of the tail flue gas of a boiler of a gas turbine power plant is as high as 140-230 ℃, a large amount of waste heat sources are contained in the tail flue gas, the cyclic recycling of the part of heat sources is a subject of research by technical personnel in the industry, certain achievements are obtained, and the phenomenon that a large amount of waste heat flue gas is directly discharged and cannot be fully utilized still exists in the actual operation engineering of the power plant. Therefore, the waste heat and the flue gas are further dug and utilized, and the efficient utilization of energy is realized, which has important significance for energy conservation, consumption reduction, green, low carbon and environmental protection.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the utility model provides a waste heat recovery system of recycling of gas turbine power plant boiler afterbody flue gas waste heat to make full use of the waste heat energy of gas turbine power plant boiler afterbody flue gas.
In order to realize the above-mentioned purpose, the utility model provides a gas turbine power plant boiler afterbody waste heat recovery system of recycling, it includes absorption cold water unit, cooling tower, water collector, water knockout drum and is used for absorbing the low temperature economizer of boiler afterbody flue gas, the low temperature economizer the cooling tower the water collector with the water knockout drum respectively with absorption cold water unit connects, the water collector with the water knockout drum still is connected with the return water pipeline of air conditioner respectively.
Furthermore, the absorption water chilling unit comprises a generator, an evaporator, a condenser and an absorber, wherein the generator is connected with the low-temperature economizer, the evaporator is respectively connected with the water collector and the water separator, the condenser is connected with one end of the cooling tower, and the absorber is connected with the other end of the cooling tower.
Further, the low-temperature economizer is connected with the generator through a first water pump.
Further, the cooling tower is connected with the absorber through a second water pump.
Further, the water collector is connected with the evaporator through a third water pump.
Furthermore, the condenser is connected with the absorber, and the condenser, the absorber and the cooling tower form cooling water circulation.
Above-mentioned technical scheme provides a gas turbine power boiler afterbody waste heat from flue gas recovery system of recycling, compares with prior art, and its beneficial effect lies in:
the recycling system of the utility model extracts the heat in the flue gas at the tail part of the boiler through the low-temperature economizer, performs heat and mass exchange, extracts the waste heat in the flue gas into water and generates high-temperature water, and takes the high-temperature water as the driving heat source of the absorption refrigerating unit to prepare the chilled water for air conditioning; the absorption water chilling unit makes the backwater into chilled water and then introduces the chilled water into the water separator for use by the air conditioner; the cooling tower provides cooling water for the absorption type water chilling unit, and forms cooling water circulation with the absorption type water chilling unit to absorb heat; the utility model discloses make full use of the waste heat energy source of gas turbine power plant boiler afterbody flue gas to use it in preparing of air conditioner refrigerated water, reached energy saving and consumption reduction, green low carbon environmental protection's effect.
Drawings
Fig. 1 is the utility model discloses a gas turbine power plant boiler afterbody waste heat from flue gas recovery system of recycling's schematic structure view.
The system comprises an absorption type water chilling unit 1, a generator 11, an evaporator 12, a condenser 13, an absorber 14, a cooling tower 2, a water collector 3, a water separator 4, a low-temperature economizer 5, a first water pump 6, a second water pump 7 and a third water pump 8.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, which indicate the orientation or positional relationship, are used in the present invention as being based on the orientation or positional relationship shown in the drawings, and are used only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the utility model provides a gas turbine power plant boiler afterbody waste heat from flue gas recovery system of recycling, it includes absorption water chilling unit 1, cooling tower 2, water collector 3, water knockout drum 4 and is used for absorbing low temperature economizer 5 of boiler afterbody flue gas, low temperature economizer 5 cooling tower 2 water collector 3 with water knockout drum 4 respectively with absorption water chilling unit 1 connects, water collector 3 with water knockout drum 4 still is connected with the return water pipe way of air conditioner respectively.
Based on the scheme, the low-temperature economizer 5 is used for extracting heat in the flue gas at the tail part of the boiler, carrying out heat-mass exchange, extracting waste heat in the flue gas into water and generating high-temperature water, and taking the high-temperature water as a driving heat source of an absorption refrigerating unit to prepare chilled water for an air conditioner; the water collector 3 sends the return water at the tail end of the air conditioner into the absorption type water chilling unit 1, and the absorption type water chilling unit 1 makes the return water into chilled water which is then introduced into the water separator 4 for the air conditioner to use; the cooling tower 2 provides cooling water for the absorption type water chilling unit 1 and forms cooling water circulation with the absorption type water chilling unit 1 to absorb heat; the utility model discloses make full use of the waste heat energy source of gas turbine power plant boiler afterbody flue gas to use it in preparing of air conditioner refrigerated water, reached energy saving and consumption reduction, green low carbon environmental protection's effect.
As shown in fig. 1, the absorption water chilling unit 1 includes a generator 11, an evaporator 12, a condenser 13 and an absorber 14, the generator 11 is connected to the low-temperature economizer 5, the evaporator 12 is connected to the water collector 3 and the water separator 4, the condenser 13 is connected to one end of the cooling tower 2, and the absorber 14 is connected to the other end of the cooling tower 2. The generator 11 is used for receiving hot water generated by the low-temperature economizer 5, the temperature of the hot water generated by the low-temperature economizer 5 is preferably 135 ℃, and the hot water is used as a driving heat source of the absorption water chilling unit 1; the cooling tower 2, the condenser 13 and the absorber 14 form a cooling water circulation system; the backwater at the tail end of the air conditioner at about 12 ℃ enters the evaporator 12 of the absorption water chilling unit 1 through the water collector 3 to prepare chilled water at about 7 ℃ to form a chilled water circulating system, so that the cooling capacity is provided for users at the tail end of the air conditioner in a plant area.
In this embodiment, the low-temperature economizer 5 is connected to the generator 11 through a first water pump 6, the cooling tower 2 is connected to the absorber 14 through a second water pump 7, and the water collector 3 is connected to the evaporator 12 through a third water pump 8. The water flow is conveyed in a water pumping mode through the water pump.
In the present embodiment, the condenser 13 and the absorber 14 are connected, and the condenser 13, the absorber 14 and the cooling tower 2 constitute a cooling water circulation. The cooling water absorbs heat in the absorber 14 and the condenser 13 to form hot water with the temperature of about 38 ℃, the temperature of the hot water is reduced to about 32 ℃ through the cooling tower 2, and the hot water enters the absorber 14 through the second water pump 7 to form a cooling water circulation system.
To sum up, the embodiment of the utility model provides a gas turbine power plant boiler afterbody waste heat from flue gas recycle system has following beneficial effect: the waste heat of the flue gas at the tail part of the boiler is recycled, so that the high-efficiency cyclic utilization of energy is realized, and the comprehensive efficiency of the energy is improved; waste heat flue gas is used for refrigeration, and the plant power consumption rate of a power plant is reduced; the absorption refrigeration replaces the traditional electric refrigeration, is beneficial to energy conservation and emission reduction, and is low-carbon and environment-friendly.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides a gas turbine power plant boiler afterbody flue gas waste heat recovery system of recycling which characterized in that, including absorption chiller, cooling tower, water collector, water knockout drum and be used for absorbing the low temperature economizer of boiler afterbody flue gas, the low temperature economizer the cooling tower the water collector with the water knockout drum respectively with absorption chiller connects, the water collector with the water knockout drum still is connected with the return water pipeline of air conditioner respectively.
2. The recycling system according to claim 1, wherein the absorption chiller comprises a generator, an evaporator, a condenser and an absorber, the generator is connected to the low-temperature economizer, the evaporator is connected to the water collector and the water separator, the condenser is connected to one end of the cooling tower, and the absorber is connected to the other end of the cooling tower.
3. The recycling system according to claim 2, wherein the low temperature economizer is connected to the generator by a first water pump.
4. The recycling system according to claim 2, wherein the cooling tower is connected to the absorber by a second water pump.
5. The recycling system according to claim 2, wherein the water collector is connected to the evaporator by a third water pump.
6. The recycling system according to claim 2, wherein said condenser is connected to said absorber, and said condenser, said absorber and said cooling tower constitute a cooling water circulation.
CN202120889784.3U 2021-04-27 2021-04-27 Gas turbine power plant boiler tail flue gas waste heat recovery system of recycling Active CN215216196U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202120889784.3U CN215216196U (en) 2021-04-27 2021-04-27 Gas turbine power plant boiler tail flue gas waste heat recovery system of recycling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202120889784.3U CN215216196U (en) 2021-04-27 2021-04-27 Gas turbine power plant boiler tail flue gas waste heat recovery system of recycling

Publications (1)

Publication Number Publication Date
CN215216196U true CN215216196U (en) 2021-12-17

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