CN202195470U - Slag heat utilization system - Google Patents
Slag heat utilization system Download PDFInfo
- Publication number
- CN202195470U CN202195470U CN 201120226715 CN201120226715U CN202195470U CN 202195470 U CN202195470 U CN 202195470U CN 201120226715 CN201120226715 CN 201120226715 CN 201120226715 U CN201120226715 U CN 201120226715U CN 202195470 U CN202195470 U CN 202195470U
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- slag
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Abstract
The utility model relates to the thermal power generation follow-up technology, in particular to a slag heat utilization system, which comprises a condensating pump, a slag cooler, a deaerator, a constant pressure water tank, a circulation water tank and an air cooler arranged on a fan inlet air flue, wherein the slag cooler adopts two sets of systems for water cooling. The slag heat utilization system has the advantages of being reasonable in structural design and ingenious and novel in concept, overcoming shortcomings in the prior art, utilizing the slag heat to the maximum extent, and improving heat utilization efficiency.
Description
(1) technical field
The utility model relates to a kind of thermal power generation subsequent technology, and particularly a kind of heat of slags utilizes system.
(2) background technology
At present, in the thermal power plant, the slag temperature of boiler emission is very high, generally all more than 800 ℃, for the ease of transportation management, generally through slag cooler slag temperature is reduced to and is delivered to the slag storehouse below 100 ℃ again, is transported to the comprehensive utilization user at last.To the cooling water of slag cooler, the power plant that has adopts recirculated cooling water, has so just wasted the heat of slag; The power plant that has adopts boiler water-filling, promptly earlier gets into the deoxygenation water tank then through cold slag machine, because the moisturizing water yield is unstable, when the moisturizing water yield hour, vaporization phenomenon can occur; The power plant that also has utilizes the water of sweet-water tank to recycle, though having utilized a part of heat, mostly still can lose.
(3) summary of the invention
The utility model is in order to remedy the deficiency of prior art, provides that a kind of heat utilization efficiency is high, rational in infrastructure, the heat of slags of stable and safe in operation utilizes system.
The utility model is realized through following technical scheme:
A kind of heat of slags utilizes system; Comprise the aerial cooler on condensate pump, slag cooler, oxygen-eliminating device, constant pressure tank, water circulating pump, the fans entrance air channel; It is characterized in that: said slag cooler cooling water adopts two cover systems; Wherein the first jacket water system annexation is that the condensate delivery side of pump links to each other with slag cooler, and the outlet of slag cooler links to each other with oxygen-eliminating device; The second jacket water system adopts closed cycle; Annexation is that the outlet of constant pressure tank links to each other with water circulating pump; The recirculated water delivery side of pump links to each other with slag cooler; The outlet of slag cooler links to each other with aerial cooler on the fans entrance air channel, and the outlet of the aerial cooler on the fans entrance air channel links to each other with constant pressure tank.
Described heat of slags utilizes system, under the summer nominal situation, adopts the first jacket water system.
Described heat of slags utilizes system, adopts the second cover closed-type circulating cooling water system winter.
The beneficial effect of the utility model is: reasonable in design, the novelty that is skillfully constructed has overcome the deficiency of prior art, has farthest utilized the heat of slag, has improved heat utilization efficiency.
(4) description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Accompanying drawing is the principle flow chart of the utility model;
Among the figure, 1 condensate pump, 2 slag coolers, 3 oxygen-eliminating devices, 4 constant pressure tanks, 5 water circulating pumps, the aerial cooler on the 6 fans entrance air channels.
(5) specific embodiment
Accompanying drawing is a kind of specific embodiment of the utility model.This embodiment comprises the aerial cooler 6 on condensate pump 1, slag cooler 2, oxygen-eliminating device 3, constant pressure tank 4, water circulating pump 5, the fans entrance air channel; Under the summer nominal situation; Adopt steam turbine condenser condensate after condensate pump 1 pressurization; Directly get into slag cooler 2, get into oxygen-eliminating device 3 through slag cooler 2 backs, and then get into boiler.Adopt closed-type circulating cooling water system winter; Cooling water adopts chemical demineralizing water; Oxygen-eliminating device is set setting-out case 4 for 3 layers in the main building, adopts water circulating pump 5 to supply water, and the cooling water in the constant pressure tank 4 gets into slag cooler 2 through water circulating pump 5 pressurization backs; Get into the aerial cooler 6 on the fans entrance air channel through the slag heated hot water, the cold water of the aerial cooler 6 on the process fans entrance air channel returns constant pressure tank 4.
Adopt the heat of slags of the utility model to utilize system, under the summer nominal situation, adopt steam turbine condenser condensate after condensate pump 1 pressurization; Directly get into slag cooler 2, get into oxygen-eliminating device 3 through slag cooler 2 backs, and then get into boiler; Like this, can play the effect of cold slag, can heat condensate again; Save the low-pressure heater steam consumption, improve heat utilization efficiency.Adopt closed-type circulating cooling water system winter, cooling water adopts chemical demineralizing water, and oxygen-eliminating device is set setting-out case 4 for 3 layers in the main building; Adopt water circulating pump 5 to supply water, the cooling water in the constant pressure tank 4 gets into slag cooler 2 through water circulating pump 5 pressurization backs, gets into the aerial cooler 6 on the fans entrance air channel through the slag heated hot water; Cold water through the aerial cooler 6 on the fans entrance air channel returns constant pressure tank 4, so recycle, like this; Can the blower fan EAT be improved; In boiler is sent in the air channel back to, both improved heat utilization efficiency, and improved and to make that the air preheater of back-end ductwork has alleviated acid corrosion behind the stove behind the EAT to the heat of slag.
Claims (1)
1. a heat of slags utilizes system; Comprise the aerial cooler (6) on condensate pump (1), slag cooler (2), oxygen-eliminating device (3), constant pressure tank (4), water circulating pump (5), the fans entrance air channel; It is characterized in that: said slag cooler (2) cooling water adopts two cover systems; Wherein the first jacket water system annexation is that the outlet of condensate pump (1) links to each other with slag cooler (2), and the outlet of slag cooler (2) links to each other with oxygen-eliminating device (3); The second jacket water system adopts closed cycle; Annexation is that the outlet of constant pressure tank (4) links to each other with water circulating pump (5); The outlet of water circulating pump (5) links to each other with slag cooler (2); The outlet of slag cooler (2) links to each other with aerial cooler (6) on the fans entrance air channel, and the outlet of the aerial cooler on the fans entrance air channel (6) links to each other with constant pressure tank (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120226715 CN202195470U (en) | 2011-06-30 | 2011-06-30 | Slag heat utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120226715 CN202195470U (en) | 2011-06-30 | 2011-06-30 | Slag heat utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202195470U true CN202195470U (en) | 2012-04-18 |
Family
ID=45950375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120226715 Expired - Fee Related CN202195470U (en) | 2011-06-30 | 2011-06-30 | Slag heat utilization system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202195470U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989382A (en) * | 2017-05-24 | 2017-07-28 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of thermal power plant Slag Cooler for Circulation Fluidized Bed Boiler cooling water system |
-
2011
- 2011-06-30 CN CN 201120226715 patent/CN202195470U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989382A (en) * | 2017-05-24 | 2017-07-28 | 中国能源建设集团湖南省电力设计院有限公司 | A kind of thermal power plant Slag Cooler for Circulation Fluidized Bed Boiler cooling water system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120418 Termination date: 20150630 |
|
| EXPY | Termination of patent right or utility model |