CN106197065A - A kind of Direct Air-Cooled tower residual heat using device - Google Patents
A kind of Direct Air-Cooled tower residual heat using device Download PDFInfo
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- CN106197065A CN106197065A CN201610780600.3A CN201610780600A CN106197065A CN 106197065 A CN106197065 A CN 106197065A CN 201610780600 A CN201610780600 A CN 201610780600A CN 106197065 A CN106197065 A CN 106197065A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000001816 cooling Methods 0.000 claims abstract description 24
- 239000002918 waste heat Substances 0.000 claims abstract description 19
- 238000003032 molecular docking Methods 0.000 claims abstract description 3
- 238000000605 extraction Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 33
- 238000000034 method Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
本发明公开了一种直接空冷塔余热利用装置，由换热器、水管及连接管道组成，所述余热利用装置主体呈线性连接结构，依次由进水连接管道、换热器、水管以及排水连接管道连接组成；在所述进水连接管道上开设的进水口，与换热器的低温热源入口对接，用于输入低温水；换热器外安装的抽气口，与换热器的高温热源入口对接，用于输入高温空气；换热器外开设的排气口，与换热器的低温热源出口对接，用于输出低温空气；换热器的高温热源出口与水管对接安装，水管末端与排水连接管道连接，用于输出高温水。本发明将直接空冷凝汽器出口的热空气作为换热器热源与冷源水进行换热，所产生热水可用于供用户使用，实现对热能的回收再利用。
The invention discloses a waste heat utilization device of a direct air-cooling tower, which is composed of a heat exchanger, a water pipe and a connecting pipe. Pipeline connection composition; the water inlet opened on the water inlet connection pipe is connected with the low-temperature heat source inlet of the heat exchanger for inputting low-temperature water; the air suction port installed outside the heat exchanger is connected with the high-temperature heat source inlet of the heat exchanger Docking, used to input high-temperature air; the exhaust port opened outside the heat exchanger is connected to the low-temperature heat source outlet of the heat exchanger, used to output low-temperature air; the high-temperature heat source outlet of the heat exchanger is connected to the water pipe, and the end of the water pipe is connected to the drain Connect the pipe connection for the output of high temperature water. The invention uses the hot air at the outlet of the direct air-cooled condenser as the heat source of the heat exchanger to exchange heat with the cold source water, and the hot water produced can be used by users, realizing the recovery and reuse of heat energy.
Description
技术领域technical field
本发明属于热能回收设备技术领域，适用于直接空冷式发电机组，具体涉及一种直接空冷塔余热利用装置。The invention belongs to the technical field of heat energy recovery equipment, is suitable for direct air-cooling generator sets, and in particular relates to a waste heat utilization device of a direct air-cooling tower.
背景技术Background technique
随着全世界水资源的日益匮乏及对环境保护问题的高度重视。由于需要消耗大量水资源并对环境造成严重负面影响，传统火电水冷机组已面临着严峻挑战。近年来，为了缓解这一问题，我国在富煤贫水的西北部地区投运大量的直接空冷式发电机组，有效缓解了当地由于水资源匮乏而引起的发电不足的状况，社会效益显著。With the increasing scarcity of water resources in the world and the great attention to environmental protection issues. Due to the need to consume a large amount of water resources and cause serious negative impacts on the environment, traditional thermal power water-cooled units have faced severe challenges. In recent years, in order to alleviate this problem, my country has put into operation a large number of direct air-cooled generator sets in the northwestern region rich in coal and poor in water, which has effectively alleviated the shortage of power generation caused by the lack of water resources in the local area, and the social benefits are remarkable.
所谓的直接空冷式发电机组，是以环境空气作为汽轮机排汽的冷却介质。与工质水相比，空气具有比热容小、导热系数小等优势，因此直接空冷凝汽器一般采用翅片管结构，汽轮机排汽在翅片管内进行凝结放热，形成的凝结水直接进入凝结水箱，与翅片管外被风机加压的空气发生对流传热。但是，目前现实情况下，空冷岛出口热空气能达到40℃～50℃，该热空气一般就直接排入大气，这既浪费了大量的热能，又对环境产生了热污染。The so-called direct air-cooled generator set uses ambient air as the cooling medium for the exhaust steam of the steam turbine. Compared with water as the working medium, air has the advantages of small specific heat capacity and small thermal conductivity. Therefore, direct air-cooled condensers generally adopt finned tube structures. The exhaust steam of the steam turbine condenses and releases heat in the finned tubes, and the condensed water formed directly enters the condensate. The water tank convects heat with the air pressurized by the fan outside the finned tube. However, in the current reality, the hot air at the outlet of the air-cooled island can reach 40°C to 50°C, and the hot air is usually directly discharged into the atmosphere, which not only wastes a lot of heat energy, but also causes thermal pollution to the environment.
发明内容Contents of the invention
针对上述现有技术中存在的技术问题，本发明提供了一种直接空冷塔余热利用装置，对直接空冷凝汽器出口热空气的高效利用，实现高效节能的目的。结合说明书附图，本发明的技术方案如下：Aiming at the technical problems existing in the above-mentioned prior art, the present invention provides a waste heat utilization device of a direct air-cooling tower, which efficiently utilizes the hot air at the outlet of the direct air-cooling condenser and realizes the purpose of high efficiency and energy saving. In conjunction with the accompanying drawings of the description, the technical solution of the present invention is as follows:
一种直接空冷塔余热利用装置，由换热器、水管及连接管道组成，所述余热利用装置主体呈线性连接结构，依次由进水连接管道、换热器、水管以及排水连接管道连接组成；A waste heat utilization device of a direct air cooling tower, which is composed of a heat exchanger, a water pipe and a connecting pipe. The main body of the waste heat utilization device has a linear connection structure, and is sequentially connected by a water inlet connection pipe, a heat exchanger, a water pipe and a drainage connection pipe;
在所述进水连接管道上开设的进水口，与换热器的低温热源入口对接，用于输入低温水；The water inlet provided on the water inlet connection pipe is connected with the low-temperature heat source inlet of the heat exchanger for inputting low-temperature water;
换热器外安装的抽气口，与换热器的高温热源入口对接，用于输入高温空气；The air extraction port installed outside the heat exchanger is connected with the high-temperature heat source inlet of the heat exchanger for inputting high-temperature air;
换热器外开设的排气口，与换热器的低温热源出口对接，用于输出低温空气；The exhaust port opened outside the heat exchanger is connected with the low-temperature heat source outlet of the heat exchanger to output low-temperature air;
换热器的高温热源出口与水管对接安装，水管末端与排水连接管道连接，用于输出高温水。The high-temperature heat source outlet of the heat exchanger is connected to the water pipe, and the end of the water pipe is connected to the drain connection pipe for outputting high-temperature water.
一种直接空冷塔余热利用装置，其中，在所述进水连接管道的外壁面上，固定安装有手柄，以便于将管道提升与空冷塔对接固定。A direct air-cooling tower waste heat utilization device, wherein a handle is fixedly installed on the outer wall surface of the water inlet connecting pipe, so as to facilitate the lifting of the pipe and docking and fixing of the air-cooling tower.
与现有技术相比，本发明的有益效果在于：Compared with prior art, the beneficial effect of the present invention is:
1、本发明的一种直接空冷塔余热利用装置，将直接空冷凝汽器出口的热空气作为换热器热源与冷源水进行换热，所产生热水可用于供用户使用，实现对热能的回收再利用；1. A direct air-cooling tower waste heat utilization device of the present invention uses the hot air at the outlet of the direct air-cooling condenser as the heat source of the heat exchanger to exchange heat with the cold source water, and the hot water generated can be used for the user to realize the reduction of heat energy. recycling;
2、本发明的一种直接空冷塔余热利用装置，将一部分凝汽器冷却用空气直接导入了空气预热器，使空气预热器入口的空气温度提高了约20～25K，从而实现节能和缓解低温腐蚀的目的。2. A direct air-cooling tower waste heat utilization device of the present invention directs a part of condenser cooling air into the air preheater, which increases the air temperature at the inlet of the air preheater by about 20-25K, thereby realizing energy saving and The purpose of alleviating low temperature corrosion.
附图说明Description of drawings
图1为本发明一种直接空冷塔余热利用装置的主视图；Fig. 1 is the front view of a kind of direct air cooling tower waste heat utilization device of the present invention;
图2为本发明一种直接空冷塔余热利用装置的侧视图；Fig. 2 is a side view of a direct air cooling tower waste heat utilization device of the present invention;
图3为本发明一种直接空冷塔余热利用装置中换热器的结构示意图。Fig. 3 is a structural schematic diagram of a heat exchanger in a waste heat utilization device of a direct air cooling tower according to the present invention.
图中：In the picture:
1-换热器； 2-手柄； 3-排气口； 4-进水口；1-Heat exchanger; 2-Handle; 3-Exhaust port; 4-Water inlet;
5-抽气口； 6-水管； 7-排水口； 8-换热器低温热源入口；5-air suction port; 6-water pipe; 7-drainage port; 8-low temperature heat source inlet of heat exchanger;
9-换热器固定装置； 10-换热器高温热源入口； 11-换热器低温热源出口。9-fixing device of heat exchanger; 10-inlet of high-temperature heat source of heat exchanger; 11-outlet of low-temperature heat source of heat exchanger.
具体实施方式detailed description
为了进一步说明本发明的技术方案，结合说明书附图，本发明的具体实施方式如下。In order to further illustrate the technical solution of the present invention, in conjunction with the accompanying drawings, the specific implementation of the present invention is as follows.
如图1和图2所示，本发明公开了一种直接空冷塔余热利用装置，所述余热利用装置呈线性结构，主要地，依次由进水连接管道、换热器、水管以及排水连接管道连接组成。As shown in Fig. 1 and Fig. 2, the present invention discloses a waste heat utilization device of a direct air cooling tower. The waste heat utilization device has a linear structure. Connection composition.
所述进水连接管道位于整个装置首端，进水连接管道的上方外壁面上，固定安装有手柄2，以便于将管道提升与空冷塔对接固定。在进水连接管道的下方外侧壁面上，开设有进水口4，用于将低温冷水引入整个余热利用装置。The water inlet connection pipe is located at the head end of the whole device, and a handle 2 is fixedly installed on the upper outer wall surface of the water inlet connection pipe, so as to facilitate the butt connection and fixation of the pipe with the air cooling tower. On the lower outer wall surface of the water inlet connecting pipe, a water inlet 4 is provided for introducing low-temperature cold water into the whole waste heat utilization device.
如图1和图3所示，换热器1安装于进水连接管道下游，并通过换热器固定装置9与外侧的抽气口5连接。在换热器1上共开设有四个口，分别为换热器低温热源入口8、换热器高温热源入口10、换热器低温热源出口11以及换热器高温热源出口。其中，换热器高温热源入口10与位于换热器外侧的抽气口5对接安装，通过抽气口5将空冷塔余热作为换热器高温热源引入换热器；换热器低温热源入口8与进水连接管上的进水口4对接，将冷水作为换热器低温热源引入换热器，与作为高温热源的空冷塔预热做热交换，输出冷空气和温水。换热器低温热源出口11与开设于换热器外侧的排气口3对接安装，将换热后的低温空气排出至外环境；换热器温水出口与下游的水管6对接安装，所述水管6为两根，并排连接于换热器高温热源出口处。As shown in FIG. 1 and FIG. 3 , the heat exchanger 1 is installed downstream of the water inlet connection pipe, and is connected to the air suction port 5 on the outside through a heat exchanger fixing device 9 . Four ports are opened on the heat exchanger 1, which are the low-temperature heat source inlet 8 of the heat exchanger, the high-temperature heat source inlet 10 of the heat exchanger, the low-temperature heat source outlet 11 of the heat exchanger, and the high-temperature heat source outlet of the heat exchanger. Among them, the high-temperature heat source inlet 10 of the heat exchanger is docked with the air extraction port 5 located outside the heat exchanger, and the waste heat of the air-cooling tower is introduced into the heat exchanger as a high-temperature heat source of the heat exchanger through the air extraction port 5; the low-temperature heat source inlet 8 of the heat exchanger is connected to the inlet The water inlet 4 on the water connection pipe is docked, and the cold water is introduced into the heat exchanger as a low-temperature heat source of the heat exchanger, and is preheated with the air-cooling tower as a high-temperature heat source for heat exchange, and cold air and warm water are output. The low-temperature heat source outlet 11 of the heat exchanger is docked with the exhaust port 3 opened on the outside of the heat exchanger, and the low-temperature air after heat exchange is discharged to the external environment; the warm water outlet of the heat exchanger is docked with the downstream water pipe 6, and the water pipe 6 is two, connected side by side at the outlet of the high temperature heat source of the heat exchanger.
所述水管6的下游连接排水连接管道，换热后的温水经水管6流经排水连接管，最终经排水连接管末端的排水口7排出，以实现再利用。The downstream of the water pipe 6 is connected to a drainage connection pipe, and the warm water after heat exchange flows through the water pipe 6 through the drainage connection pipe, and finally is discharged through the drain outlet 7 at the end of the drainage connection pipe to realize reuse.
本发明的工作过程及原理如下：Working process and principle of the present invention are as follows:
常温空气经过直接空冷系统温度大幅度提升，经空冷塔排出的空气热源经抽气口引入至本发明的余热利用装置，并作为高温热源进入换热器的空气热源通道，同时，冷水通过进水管引入本发明装置，作为低温热源流经换热器，与热空气进行换热，从热空气中获取热量使得冷水温度提升，随后通过换热器温水出口流出，流经水管从排水口流出加以再利用。The temperature of normal temperature air is greatly increased through the direct air cooling system, and the air heat source discharged from the air cooling tower is introduced into the waste heat utilization device of the present invention through the air outlet, and enters the air heat source channel of the heat exchanger as a high temperature heat source, and at the same time, cold water is introduced through the water inlet pipe The device of the present invention flows through the heat exchanger as a low-temperature heat source, exchanges heat with hot air, obtains heat from the hot air to increase the temperature of the cold water, then flows out through the outlet of the heat exchanger, and flows out through the water pipe from the drain outlet for reuse .
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780600.3A CN106197065A (en) | 2016-08-31 | 2016-08-31 | A kind of Direct Air-Cooled tower residual heat using device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610780600.3A CN106197065A (en) | 2016-08-31 | 2016-08-31 | A kind of Direct Air-Cooled tower residual heat using device |
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| CN106197065A true CN106197065A (en) | 2016-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106871499A (en) * | 2017-02-23 | 2017-06-20 | 泉州泉港璟冠信息科技有限公司 | A kind of flexible structure and be easy to dismounting cleaning finned cooler |
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Application publication date: 20161207 |