CN204043022U - A kind of low vacuum circulating water waste heat utilization - Google Patents

A kind of low vacuum circulating water waste heat utilization Download PDF

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Publication number
CN204043022U
CN204043022U CN201420421152.4U CN201420421152U CN204043022U CN 204043022 U CN204043022 U CN 204043022U CN 201420421152 U CN201420421152 U CN 201420421152U CN 204043022 U CN204043022 U CN 204043022U
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water
condenser
butterfly valve
electric butterfly
heating
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CN201420421152.4U
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Chinese (zh)
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尹红卫
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An Polytron Technologies Inc
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SHIJIAZHUANG ANNENG SCIENCE AND TECHNOLOGY Co Ltd
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Abstract

The utility model relates to a kind of low vacuum circulating water waste heat utilization, and it comprises condensing heater, water supply installation and carbonated drink heater.The utility model design science, easy to operate, utilize turbine exhaust heat to heat, realize central heating, energy-saving and emission-reduction, and turbine exhaust heat can be made full use of, improve residual heat heating stability.

Description

A kind of low vacuum circulating water waste heat utilization
Technical field
The utility model belongs to electric power heat recovery field, is specifically related to a kind of low vacuum circulating water waste heat utilization.
Background technology
Concentrated supply of heating in the city engineering is the construction project of consumption of natural resource, and the Main Resources of consumption is heat and water resource.Steam Turbine in Fire Power Plant generating can produce a large amount of high-temperature steam, recycles the water of hot duct and utilizes steam-turbine can greatly improve thermal power plant utilization rate of waste heat to circulating water heating, reduces heating cost, improves heat supply efficiency.But the heat supply in winter phase differs greatly due to ambient temperature, also has larger difference to the temperature requirements of heating, when ambient temperature is higher, if the Steam Heating fully starting steam turbine can cause waste to steam utilization; Meanwhile, the steam turbine of general large-size thermal power plant arranges more, how to ensure the heating-up temperature of heating backwater when steam turbine fault, ensures that heating quality is also the problem needing in the face of and solve.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of low vacuum circulating water waste heat utilization that can make full use of turbine exhaust heat, improve residual heat heating stability.
The technical scheme that the utility model solves the employing of its technical problem is:
A kind of low vacuum circulating water waste heat utilization, it comprises condensing heater, water supply installation and carbonated drink heater;
Described condensing heater comprises the first condenser and the second condenser, described first condenser is connected steam-turbine outlet with the steam inlet of the second condenser, described first condenser is communicated with absorbing well, absorption well with the cooling water inlet of the second condenser by cooling water oral siphon, and described first condenser is communicated with cooling tower with the coolant outlet of the second condenser by cooling water outlet pipe; Described cooling water oral siphon arranges water pump, described cooling tube outlet pipe is arranged the first flange electric butterfly valve, described first flange electric butterfly valve is communicated with the first heating feed pipe with the cooling water outlet pipe between coolant outlet by the second flange electric butterfly valve; Described water pump is communicated with the second heating return pipe with the cooling water oral siphon between cooling water inlet by three-flange electric butterfly valve; Described second heating return pipe one end connects automatic dirt-removing filtering device, and the other end connects the first heating feed pipe by the 4th flange electric butterfly valve;
Described water supply installation comprises the circulating pump be connected with the first heating feed pipe, and the water inlet of described circulating pump once connects small pump, softening water tank and softening hydrophone by pipeline, and described softening hydrophone connects running water; The delivery port of described circulating pump connects the second heating feed pipe, and described second heating feed pipe is communicated with terminal heating water supply line by the 5th flange electric butterfly valve;
Described carbonated drink heater comprises vapor-water heat exchanger, the water inlet of described vapor-water heat exchanger condenser pipe connects steam turbine steam pumping pipeline, the delivery port of described vapor-water heat exchanger condenser pipe connects Condensate recovery device by pipeline, and the heat exchanger tube two ends of described vapor-water heat exchanger are connected in parallel on the 5th flange electric butterfly valve two ends and are communicated with the second heating feed pipe; Described vapor-water heat exchanger heat exchanger tube two ends arrange the 6th flange electric butterfly valve and the 7th flange electric butterfly valve respectively; The delivery port of described Condensate recovery device connects the water inlet of condensate pump by pipeline, the delivery port of described condensate pump connects power plant's oxygen-eliminating device.
The beneficial effects of the utility model are:
1. can realize recycling of heating water, utilize the steam waste heat of steam turbine to heat heating water return, the utilization of generating waste-heat can be realized, economize on resources, improve heat supply efficiency, reduce heating cost;
2. arranged by valve and tube fit, regulate, the utilization can carrying out in various degree to the steam of steam turbine, avoid just cold and end to tremble with fear phase excessive use waste heat and cause waste heat to waste;
3. when steam turbine breaks down or need repairing, by heat exchanger, post bake is carried out to heating recirculated water, ensure heating temperature, improve heating stability;
4. water supply installation can ensure the supply that heating is supplied water;
5. Condensate recovery device and condensate pump can reclaim the condensate water of vapor-water heat exchanger, avoid causing waste.
The utility model design science, easy to operate, utilize turbine exhaust heat to heat, realize central heating, energy-saving and emission-reduction, and turbine exhaust heat can be made full use of, improve residual heat heating stability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model condensing heater;
Fig. 3 is the structural representation of water supply installation of the present utility model;
Fig. 4 is the structural representation of carbonated drink heater of the present utility model.
Detailed description of the invention
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, below in conjunction with the drawings and specific embodiments in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-4, a kind of low vacuum circulating water waste heat utilization of the present embodiment comprises condensing heater 1, water supply installation 2 and carbonated drink heater 3;
Described condensing heater comprises the first condenser 1-13 and the second condenser 1-14, described first condenser 1-13 is connected steam turbine 4 steam (vapor) outlet with the steam inlet of the second condenser 1-14, described first condenser 1-13 is communicated with absorbing well, absorption well 1-16 with the cooling water inlet of the second condenser 1-14 by cooling water oral siphon 1-15, and described first condenser 1-13 is communicated with cooling tower 1-21 with the coolant outlet of the second condenser 1-14 by cooling water outlet pipe 1-17; Described cooling water oral siphon 1-15 arranges water pump 1-9A, 1-9B, 1-10A, 1-10B, described cooling tube outlet pipe 1-17 is arranged the first flange electric butterfly valve 1-5,1-7,1-9,1-11, described first flange electric butterfly valve 1-5,1-7, cooling water outlet pipe 1-17 between 1-9,1-11 and coolant outlet is by the second flange electric butterfly valve 1-6,1-8,1-10,1-12 are communicated with the first heating feed pipe 1-19; Described water pump 1-9A, the cooling water oral siphon 1-15 between 1-9B, 1-10A, 1-10B with cooling water inlet is communicated with the second heating return pipe 5 by three-flange electric butterfly valve 1-1,1-2,1-3,1-4; Described second heating return pipe 5 one end connects automatic dirt-removing filtering device 1-20, and the other end connects the first heating feed pipe 1-19 by the 4th flange electric butterfly valve 1-18;
Described water supply installation 2 comprises the circulating pump 2-2 be connected with the first heating feed pipe 1-19, and the water inlet of described circulating pump once connects small pump 2-3, softening water tank 2-4 and softening hydrophone 2-5 by pipeline, and described softening hydrophone 2-5 connects running water; The delivery port of described circulating pump 2-2 connects the second heating feed pipe 2-6, and described second heating feed pipe 2-6 is communicated with terminal heating water supply line 6 by the 5th flange electric butterfly valve 2-7;
Described carbonated drink heater 3 comprises vapor-water heat exchanger 3-1, the water inlet of described vapor-water heat exchanger 3-1 condenser pipe connects steam turbine steam pumping pipeline, the delivery port of described vapor-water heat exchanger 3-1 condenser pipe connects Condensate recovery device 3-2 by pipeline, and the heat exchanger tube two ends of described vapor-water heat exchanger 3-1 are connected in parallel on the 5th flange electric butterfly valve 2-7 two ends and are communicated with the second heating feed pipe 2-6; Described vapor-water heat exchanger 3-1 heat exchanger tube two ends arrange the 6th flange electric butterfly valve 3-4 and the 7th flange electric butterfly valve 3-5 respectively; The delivery port of described Condensate recovery device 3-2 connects the water inlet of condensate pump 3-3 by pipeline, the delivery port of described condensate pump connects power plant's oxygen-eliminating device.
Work of the present utility model is divided into three kinds of operating modes:
1, just tremble with fear the phase in cold and end:
In the first cold and end cold phase, utilize the one-sided circulating water heating of a steam turbine and another turbine condenser.In this period, open three three-flange electric butterfly valve 1-1, 1-2, 1-3, three the second flange electric butterfly valve 1-6, 1-8, 1-10, a first flange electric butterfly valve 1-11 and the 5th flange electric butterfly valve 2-7, a corresponding closedown three-flange electric butterfly valve 1-4 simultaneously, a second flange electric butterfly valve 1-12, three the first flange electric butterfly valve 1-5, 1-7, 1-9, 4th flange electric butterfly valve 1-18, 6th flange electric butterfly valve 3-4 and the 7th flange electric butterfly valve 3-5, open a corresponding water pump 1-10B, close its excess-three water pump 1-9A, 1-9B, 1-10A.
2, the deeply cold phase:
In the dark cold phase, utilize two circulating water in turbine condenser heat supplies.In this period, open three-flange electric butterfly valve 1-1,1-2,1-3,1-4, second flange electric butterfly valve 1-6,1-8,1-10,1-12, the 5th flange electric butterfly valve 2-7; Close first flange electric butterfly valve 1-5,1-7,1-9,1-11, the 4th flange electric butterfly valve 1-18, the 6th flange electric butterfly valve 3-4 and the 7th flange electric butterfly valve 3-5, switch off the pump 1-9A, 1-9B, 1-10A, 1-10B.
3, when steam turbine breaks down: close valve before and after the 5th flange electric butterfly valve 2-7 and the corresponding condenser of accident steam turbine, open the 4th flange electric butterfly valve 1-18, the 6th flange electric butterfly valve 3-4 and the 7th flange electric butterfly valve 3-5, start vapor-water heat exchanger 3-1, ensure the heat demand of 75%.
Certain thermal power plant, its heating parameter is as follows:
Condenser recirculated water inflow temperature (heating water return) 50 DEG C
Condenser recirculated water leaving water temperature (heating and supplying water) 65 DEG C
Condenser recirculated water intake pressure (pressure of return water)≤0.2MPa
Steam turbine exhaust pressure 0.0386MPa
Turbine discharge temperature (end difference is by 10 DEG C of calculating) 75 DEG C
Condenser condensation saturation water temperature 75 DEG C;
Quantity of circulating water is 4737t/h, and rate of water make-up is 2% of quantity of circulating water, and rate of water make-up is 94.74t/h.
During two steam turbine work, when heating return water temperature is 50 DEG C, through condenser heating, terminal heating is supplied water can reach 65 DEG C; When a steam turbine fault, when heating return water temperature is 50 DEG C, through a condenser heating, second heating feed pipe Inner eycle water only has 57.5 degrees Celsius, and through the post bake of vapor-water heat exchanger, terminal heating is supplied water can reach 61 DEG C, run during accident, uninterrupted heating demand can be met.
And unconventional coal burning system, the construction of this engineering, when coal imbalance between supply and demand becomes increasingly conspicuous, to the comprehensive utilization implementing resource, economize energy, plays a role, and is the multiple-purpose project turned waste into wealth.Alleviate the nervous situation of local central heating to a certain extent simultaneously.The economic development of this environmental protection for locality, economize energy and Jinzhou City is all significant.
The present embodiment can be improved the ecological environment by implementing central heating, improves city taste, reduces atmosphere pollution, uplift the people's living standard.Effectively can reduce the discharge of winter heating burning pollutant and the discharge of power plant's used heat, and considerable economic benefit can be brought to power plant, reach the economy and environment benefit of doulbe-sides' victory.The present embodiment arranges vapor-water heat exchanger, improves the reliability of district heating.
This embodiment avoids heating user newly-built arcola room again separately, guarantee that in confession thermal region, flue dust and SO2 emissions reach discharge standard, obvious environment benefit.

Claims (1)

1. a low vacuum circulating water waste heat utilization, is characterized in that: it comprises condensing heater (1), water supply installation (2) and carbonated drink heater (3);
Described condensing heater comprises the first condenser (1-13) and the second condenser (1-14), described first condenser (1-13) is connected steam turbine (4) steam (vapor) outlet with the steam inlet of the second condenser (1-14), described first condenser (1-13) is communicated with absorbing well, absorption well (1-16) with the cooling water inlet of the second condenser (1-14) by cooling water oral siphon (1-15), and described first condenser (1-13) is communicated with cooling tower (1-21) with the coolant outlet of the second condenser (1-14) by cooling water outlet pipe (1-17); Described cooling water oral siphon (1-15) arranges water pump (1-9A, 1-9B, 1-10A, 1-10B), described cooling tube outlet pipe (1-17) arranges the first flange electric butterfly valve (1-5,1-7,1-9,1-11), described first flange electric butterfly valve (1-5,1-7,1-9,1-11) and coolant outlet between cooling water outlet pipe (1-17) by the second flange electric butterfly valve (1-6,1-8,1-10,1-12) be communicated with the first heating feed pipe (1-19); Cooling water oral siphon (1-15) between described water pump (1-9A, 1-9B, 1-10A, 1-10B) and cooling water inlet is communicated with the second heating return pipe (5) by three-flange electric butterfly valve (1-1,1-2,1-3,1-4); Described second heating return pipe (5) one end connects automatic dirt-removing filtering device (1-20), and the other end connects the first heating feed pipe (1-19) by the 4th flange electric butterfly valve (1-18);
Described water supply installation (2) comprises the circulating pump (2-2) be connected with the first heating feed pipe (1-19), the water inlet of described circulating pump once connects small pump (2-3), softening water tank (2-4) and softening hydrophone (2-5) by pipeline, and described softening hydrophone (2-5) connects running water; The delivery port of described circulating pump (2-2) connects the second heating feed pipe (2-6), and described second heating feed pipe (2-6) is communicated with terminal heating water supply line (6) by the 5th flange electric butterfly valve (2-7);
Described carbonated drink heater (3) comprises vapor-water heat exchanger (3-1), the water inlet of described vapor-water heat exchanger (3-1) condenser pipe connects steam turbine steam pumping pipeline, the delivery port of described vapor-water heat exchanger (3-1) condenser pipe connects Condensate recovery device (3-2) by pipeline, and the heat exchanger tube two ends of described vapor-water heat exchanger (3-1) are connected in parallel on the 5th flange electric butterfly valve (2-7) two ends and are communicated with the second heating feed pipe (2-6); Described vapor-water heat exchanger (3-1) heat exchanger tube two ends arrange the 6th flange electric butterfly valve (3-4) and the 7th flange electric butterfly valve (3-5) respectively; The delivery port of described Condensate recovery device (3-2) connects the water inlet of condensate pump (3-3) by pipeline, the delivery port of described condensate pump connects power plant's oxygen-eliminating device.
CN201420421152.4U 2014-07-29 2014-07-29 A kind of low vacuum circulating water waste heat utilization Active CN204043022U (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106225039A (en) * 2016-08-30 2016-12-14 中国能源建设集团广东省电力设计研究院有限公司 Feed pump turbine low-vacuum-operating circulating water heating system and power-economizing method thereof
CN107140714A (en) * 2017-06-22 2017-09-08 济南市琦泉热电有限责任公司 A kind of utilization heating water return waste heat improves the equipment and technique of reverse osmosis efficiency

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106225039A (en) * 2016-08-30 2016-12-14 中国能源建设集团广东省电力设计研究院有限公司 Feed pump turbine low-vacuum-operating circulating water heating system and power-economizing method thereof
CN107140714A (en) * 2017-06-22 2017-09-08 济南市琦泉热电有限责任公司 A kind of utilization heating water return waste heat improves the equipment and technique of reverse osmosis efficiency
CN107140714B (en) * 2017-06-22 2020-05-12 济南市琦泉热电有限责任公司 Equipment and process for improving reverse osmosis efficiency by using waste heat of heating return water

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Address after: 050000, No. 8, building 2, Fangda Science Park, No. 266 Tianshan Road, Shijiazhuang hi tech Development Zone, Hebei

Patentee after: An Polytron Technologies Inc

Address before: 050000, No. 8, building 2, Fangda Science Park, No. 266 Tianshan Road, Shijiazhuang hi tech Development Zone, Hebei

Patentee before: Shijiazhuang Anneng Science and Technology Co., Ltd.