CN103363513A - Water feeding system for sintering waste heat electric generating boiler - Google Patents
Water feeding system for sintering waste heat electric generating boiler Download PDFInfo
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- CN103363513A CN103363513A CN2013103151140A CN201310315114A CN103363513A CN 103363513 A CN103363513 A CN 103363513A CN 2013103151140 A CN2013103151140 A CN 2013103151140A CN 201310315114 A CN201310315114 A CN 201310315114A CN 103363513 A CN103363513 A CN 103363513A
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Abstract
The invention discloses a water feeding system for sintering a waste heat electric generating boiler. The water feeding system comprises a deaerator, a first water feeding pump, a second water feeding pump, a first hand valve, an electric outlet valve, a protopipe, a first valve system, a second valve system, a one-stage water preheater, a two-stage water preheater, a first boiler barrel, a second boiler barrel and a third boiler barrel, wherein an outlet of the deaerator is communicated with an inlet of the first water feeding pump and an inlet of the second water feeding pump through pipelines; an outlet of the first water feeding pump and an outlet of the second water feeding pump are respectively communicated with an inlet of the protopipe through the first hand valve and the electric outlet valve; and an outlet of the protopipe is divided into three paths, wherein the first path is communicated with the first boiler barrel through the first valve system and the one-stage water preheater, the second path is communicated with the second boiler barrel through the two-stage water preheater, and the third path is communicated with the third boiler barrel through a third valve. Through the adoption of the water feeding system, the safety of the system can be effectively improved, and the running cost of the system is reduced.
Description
Technical field
The present invention relates to a kind of water supply system, be specifically related to a kind of water supply system of sintering waste heat generating boiler.
Background technology
Three feed pumps of general employing supply water in the water supply system of traditional sintering waste heat generating boiler, the method of operation is dual-purpose one standby, the method of operation is uneconomical, increased the spare part rate of human cost and spare unit, cause station service power consumption rate increase and maintenance maintenance expense higher, with reference to figure 1, in running, confluent has very large surplus capacity, adjust by its outlet portal or recirculation door, as untimely or improper because adjusting, can cause feed pump to build the pressure and Caused Vibration is large, three drum feed-regulating valves of boiler are installed in separately near the drum, according to the open and close of steam water-level height; When if certain steam water-level were high feed-regulating valve close, will make like this feedwater piping from exporting certain the drum feedwater piping pressure that continues to sprain to feed pump near the drum, cause that pipe welding seam is because of the pressure-break leakage of spraining, valve flanges, it is little or when not going up water that safety valve faying face place reveals the water yield, water preheater place cigarette temperature changes little, water in the water preheater water pipe replenishes without new water, cause vaporization, volumetric expansion, cause pipe deforming, causing feed pump to sprain to press because of pipeline shakes greatly, cause that water pump frequently switches start and stop, increase the maintenance number of times, reduced water pump, the service life of motor, human cost and standby redundancy rate have been increased, cause station service power consumption rate increase and maintenance maintenance expense higher, and in running, Security of the system is not high.
In addition, three drum feed-regulating valves of former boiler are designed to the upper water of main road electric control valve, bypass manually operated door control, if during main road electric control valve fault, just need the at the scene upper water of operator movable valve control of operating personnel, ensure boiler water level; Can cause like this increase of personnel cost and operations staff's labour intensity, and maintain and replace is inconvenient, site environment high temperature, it is fluctuated that long working affects large the Water Level Control of Steam to operations staff and upkeep operation personnel body and mind, affects steam generator system safety.Recirculation door is installed on the former feed main is caused oxygen-eliminating device by pipeline, when feed pump move, open and prevent feed pump pressures of spraining, if two operation water pump adjustment are improper, may cause that one is exerted oneself greatly, exerts oneself little for other one; Little the spraining of exerting oneself pressed and shaken greatly the supercurrent operation of exerting oneself large.
Summary of the invention
The object of the invention is to overcome the shortcoming of above-mentioned prior art, a kind of water supply system of sintering waste heat generating boiler is provided, this system can effectively save system operation cost, increases system's Operation safety.
For achieving the above object, the water supply system of sintering waste heat generating boiler of the present invention comprises oxygen-eliminating device, the first feed pump, the second feed pump, first-hand movable valve, electronic outlet valve, female pipe, the first valve system, second valve door system, the 3rd valve system, one section water preheater, two sections water preheaters, the first drum, the second drum and the 3rd drums;
The outlet of described oxygen-eliminating device is connected with the entrance of the first feed pump and the entrance of the second feed pump by pipeline, described the first feed pump outlet and the second feedwater delivery side of pump all are connected with the entrance of female pipe by first-hand movable valve and electronic outlet valve, the outlet of described female pipe is divided into three the tunnel, wherein, the first via is connected with the first drum by the first valve system and one section water preheater, the second the tunnel is connected with the second drum by second valve door system and two sections water preheaters, and Third Road is connected with the 3rd drum by the 3rd valve system;
Pipeline between described first-hand movable valve and the electronic outlet valve also is communicated with recirculation door, and the outlet of described recirculation door is connected with the entrance of described oxygen-eliminating device.
Described one section water preheater comprises one section one-level water preheater and one section secondary water preheater, described one section one-level water preheater entrance is connected with the outlet of the first valve system, the outlet of one section one-level water preheater is connected by the entrance of pipeline with one section secondary water preheater, and the outlet of one section secondary water preheater is connected with the first drum;
Described two sections water preheaters comprise two sections one-level water preheaters and two sections secondary water preheaters, the entrance of described two sections secondary water preheaters is connected by the outlet of pipeline with the second valve door system, the outlet of two sections one-level water preheaters is connected by the entrance of pipeline with two sections secondary water preheaters, and the outlet of two sections secondary water preheaters is connected with the second drum by pipeline.
The outlet of described one section one-level water preheater is connected by second-hand's movable valve with the outlet of two sections one-level water preheaters.
The outlet of described one section secondary water preheater is connected by the 3rd manually-operated gate with the outlet of two sections secondary water preheaters.
Be equipped with the first drum manually-operated gate and the first drum reverse stop valve on the pipeline between the outlet of described one section secondary water preheater and the first drum and on the pipeline of asking of the outlet of two sections secondary water preheaters and the second drum;
Pipeline between described the 3rd valve system and the 3rd drum is provided with the second drum manually-operated gate and the second drum reverse stop valve.
Described the first valve system, second valve door system and the 3rd valve system include the 4th manually-operated gate, the first valve sets and the second valve sets, described the first valve sets is connected with the outlet of described the second valve sets by pipeline and described the 4th manually-operated gate of Guan Houyu, and the entrance of described the 4th manually-operated gate is connected with the outlet of female pipe.
Described the first valve sets and the second valve sets are equipped with the 5th manually-operated gate and electric control valve and the 6th manually-operated gate that is connected successively.
The present invention has following beneficial effect:
The water supply system of sintering waste heat generating boiler of the present invention is carried out the supply of water by the first feed pump and the second feed pump, in system's running, adopt the working method of the using and the reserved, effectively reduce the spare part rate of equipment, reduce simultaneously operations staff's operating frequency, the start and stop rate of equipment and maintainer's labour intensity, on the pipeline between described first-hand movable valve and the electronic outlet valve recirculation door is installed, can by recirculation door with unnecessary water circulation to oxygen-eliminating device, again by oxygen-eliminating device from newly entering into the first feed pump and the second feed pump, prevent the first drum, water pump was sprained and is pressed and vibrations damage or valve flanges face junction leaks when the second drum and the 3rd drum were in high water level; Simultaneously can by electronic outlet valve when the water pump operation from open, autoshutdown when water pump stops, preventing from causing the water pump reversing and damaging to aqueous reflux, thereby effectively improve system's Operation safety.
Description of drawings
Fig. 1 is the structural representation of the water supply system of traditional sintering waste heat generating boiler;
Fig. 2 is structural representation of the present invention.
Wherein, 1 is that oxygen-eliminating device, 2 is that the first feed pump, 3 is that the second feed pump, 4 is that two sections one-level water preheaters, 5 are that one section one-level water preheater, 6 is that one section secondary water preheater, 7 is that two sections secondary water preheaters, 8 are that the first drum, 9 is that the second drum, 10 is that the 3rd drum, 11 is that second-hand's movable valve, 12 is the 3rd manually-operated gate.
The specific embodiment
With reference to figure 2, the water supply system of sintering waste heat generating boiler of the present invention comprises oxygen-eliminating device 1, the first feed pump 2, the second feed pump 3, first-hand movable valve, electronic outlet valve, female pipe, the first valve system, second valve door system, the 3rd valve system, one section water preheater, two sections water preheaters, the first drum 8, the second drum 9 and the 3rd drums 10; Described the first valve system, second valve door system and the 3rd valve system include the 4th manually-operated gate, the first valve sets and the second valve sets, described the first valve sets is connected with the outlet of described the second valve sets by pipeline and described the 4th manually-operated gate of Guan Houyu, the entrance of described the 4th manually-operated gate is connected with the outlet of female pipe, and described the first valve sets and the second valve sets are equipped with the 5th manually-operated gate and electric control valve and the 6th manually-operated gate that is connected successively.
The outlet of described oxygen-eliminating device 1 is connected with the entrance of the first feed pump 2 and the entrance of the second feed pump 3 by pipeline, the outlet of 2 outlets of described the first feed pump and the second feed pump 3 all is connected with the entrance of female pipe by first-hand movable valve and electronic outlet valve, the outlet of described female pipe is divided into three the tunnel, wherein, the first via is connected with the first drum 8 by the first valve system and one section water preheater, described one section water preheater comprises one section one-level water preheater 5 and one section secondary water preheater 6, described one section one-level water preheater 5 entrance are connected with the outlet of the first valve system, the outlet of one section one-level water preheater 5 is connected by the entrance of pipeline with one section secondary water preheater 6, and the outlet of one section secondary water preheater 6 is connected with the first drum 8; The second the tunnel is connected with the second drum 9 by second valve door system and two sections water preheaters, described two sections water preheaters comprise two sections one-level water preheaters 4 and two sections secondary water preheaters 7, the entrance of described two sections secondary water preheaters 7 is connected by the outlet of pipeline with the second valve door system, the outlet of two sections one-level water preheaters 4 is connected by the entrance of pipeline with two sections secondary water preheaters 7, and the outlet of two sections secondary water preheaters 7 is connected with the second drum 9 by pipeline; Third Road is connected with the 3rd drum 10 by the 3rd valve system; Pipeline between described first-hand movable valve and the electronic outlet valve also is communicated with recirculation door, the outlet of described recirculation door is connected with the entrance of described oxygen-eliminating device 1, is equipped with the first drum manually-operated gate and the first drum reverse stop valve on the pipeline between the outlet of described one section secondary water preheater 6 and the first drum 8 and on the outlet of two sections secondary water preheaters 7 and the pipeline between the second drum 9; Pipeline between described the 3rd valve system and the 3rd drum 10 is provided with the second drum manually-operated gate and the second drum reverse stop valve.
In addition, the outlet of described one section one-level water preheater 5 is connected by second-hand's movable valve 11 with the outlet of two sections one-level water preheaters 4; The outlet of described one section secondary water preheater 6 is connected by the 3rd manually-operated gate 12 with the outlet of two sections secondary water preheaters 7.
Specific works process of the present invention is as follows;
Deaerated water in the oxygen-eliminating device 1 enters into the first feed pump 2 and the second feed pump 3 through feedwater piping, when the first feed pump 2 or 3 work of the second feed pump, deaerated water flows into through the pump entrance of the first feed pump 2 and the second feed pump 3, and the outlet of passing through the first feed pump 2 and the second feed pump 3 is flowed out, and then enter into female pipe through first-hand movable valve and electronic outlet valve, and be divided into three the tunnel by the outlet of female pipe, the first via enters into one section one-level water preheater 5 through the first valve system, again through one section secondary water preheater 6, the first drum manually-operated gate, the first drum reverse stop valve enters into the first drum 8; The second the tunnel enters into the second drum 9 through second valve door system, two sections secondary water preheaters 7, the first drum manually-operated gate, first drum reverse stop valves; Third Road enters into the 3rd drum 10 through the 3rd valve system, the second drum manually-operated gate, the second drum reverse stop valve.
Described the first valve system, second valve door system and the 3rd valve system include the 4th manually-operated gate, the first valve sets and the second valve sets, described the first valve sets and the second valve sets are connected in parallel, described the first valve sets and the second valve sets are equipped with electric control valve, when the first valve sets breaks down, can close the electric control valve on described the first valve sets, open the electric control valve on described the second valve sets, can overhaul or change the first valve sets, when described the second valve sets breaks down, close the electric control valve on described the second valve sets, open the electric control valve on described the first valve sets, can overhaul or change the second valve sets, can save by described electric control valve simultaneously the height of the corresponding drum middle water level of valve; The effect of described drum non-return flap is on the drum behind the water, when drum stops upper water, prevent that the steam water interface in the drum from flowing backwards, when described one section one-level water preheater 5 breaks down, can realize that the first drum 8 supplies water by opening described second-hand's movable valve 11, when described one section secondary water preheater 6 breaks down, can realize described the first drum 8 is supplied water by opening described the 3rd manually-operated gate 12; Same, when two sections secondary water preheaters 7 break down, can realize the second drum 9 is supplied water by opening second-hand's movable valve 11, when described two sections secondary water preheaters 7 break down, can realize water supply to the second drum 9 by opening described the 3rd manually-operated gate 12, be convenient to simultaneously maintenance or the replacing of corresponding fault.
Claims (7)
1. the water supply system of a sintering waste heat generating boiler, it is characterized in that, comprise oxygen-eliminating device (1), the first feed pump (2), the second feed pump (3), first-hand movable valve, electronic outlet valve, female pipe, the first valve system, second valve door system, the 3rd valve system, one section water preheater, two sections water preheaters, the first drum (8), the second drum (9) and the 3rd drums (10);
The outlet of described oxygen-eliminating device (1) is connected with the entrance of the first feed pump (2) and the entrance of the second feed pump (3) by pipeline, the outlet of described the first feed pump (2) outlet and the second feed pump (3) all is connected with the entrance of female pipe by first-hand movable valve and electronic outlet valve, the outlet of described female pipe is divided into three the tunnel, wherein, the first via is connected with the first drum (8) by the first valve system and one section water preheater, the second the tunnel is connected with the second drum (9) by second valve door system and two sections water preheaters, and Third Road is connected with the 3rd drum (10) by the 3rd valve system;
Pipeline between described first-hand movable valve and the electronic outlet valve also is communicated with recirculation door, and the outlet of described recirculation door is connected with the entrance of described oxygen-eliminating device (1).
2. the water supply system of sintering waste heat generating boiler according to claim 1 is characterized in that,
Described one section water preheater comprises one section one-level water preheater (5) and one section secondary water preheater (6), described one section one-level water preheater (5) entrance is connected with the outlet of the first valve system, the outlet of one section one-level water preheater (5) is connected by the entrance of pipeline with one section secondary water preheater (6), and the outlet of one section secondary water preheater (6) is connected with the first drum (8);
Described two sections water preheaters comprise two sections one-level water preheaters (4) and two sections secondary water preheaters (7), the entrance of described two sections secondary water preheaters (7) is connected by the outlet of pipeline with the second valve door system, the outlet of two sections one-level water preheaters (4) is connected by the entrance of pipeline with two sections secondary water preheaters (7), and the outlet of two sections secondary water preheaters (7) is connected with the second drum (9) by pipeline.
3. the water supply system of sintering waste heat generating boiler according to claim 2 is characterized in that, the outlet of described one section one-level water preheater (5) is connected by second-hand's movable valve (11) with the outlet of two sections one-level water preheaters (4).
4. the water supply system of sintering waste heat generating boiler according to claim 2 is characterized in that, the outlet of described one section secondary water preheater (6) is connected by the 3rd manually-operated gate (12) with the outlet of two sections secondary water preheaters (7).
5. the water supply system of sintering waste heat generating boiler according to claim 2 is characterized in that,
Be equipped with the first drum manually-operated gate and the first drum reverse stop valve on the pipeline between the outlet of described one section secondary water preheater (6) and the first drum (8) and on the outlet of two sections secondary water preheaters (7) and the pipeline between the second drum (9);
Pipeline between described the 3rd valve system and the 3rd drum (10) is provided with the second drum manually-operated gate and the second drum reverse stop valve.
6. the water supply system of sintering waste heat generating boiler according to claim 1, it is characterized in that, described the first valve system, second valve door system and the 3rd valve system include the 4th manually-operated gate, the first valve sets and the second valve sets, described the first valve sets is connected with the outlet of described the second valve sets by pipeline and described the 4th manually-operated gate of Guan Houyu, and the entrance of described the 4th manually-operated gate is connected with the outlet of female pipe.
7. the water supply system of sintering waste heat generating boiler according to claim 6 is characterized in that, described the first valve sets and the second valve sets are equipped with the 5th manually-operated gate and electric control valve and the 6th manually-operated gate that is connected successively.
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| CN201310315114.0A CN103363513B (en) | 2013-07-24 | 2013-07-24 | A kind of water supply system of sintering waste heat generating boiler |
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| CN201310315114.0A CN103363513B (en) | 2013-07-24 | 2013-07-24 | A kind of water supply system of sintering waste heat generating boiler |
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Cited By (2)
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| CN103542399A (en) * | 2013-10-28 | 2014-01-29 | 中国能源建设集团广东省电力设计研究院 | Boiler feed water system and feed water adjusting method thereof |
| CN110671692A (en) * | 2019-09-12 | 2020-01-10 | 中国石油化工股份有限公司 | System and process for efficiency improvement and energy saving of thermoelectric desalting water pump |
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| CN110671692A (en) * | 2019-09-12 | 2020-01-10 | 中国石油化工股份有限公司 | System and process for efficiency improvement and energy saving of thermoelectric desalting water pump |
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Effective date of registration: 20170824 Address after: 715405 Longmen Town, Hancheng, Shaanxi Patentee after: Shaanxi Huafu New Energy Co.,Ltd. Address before: 710018 No. 5, North Second Ring Road, Xi'an, Shaanxi Patentee before: Shaan Steel Group Co., Ltd. |