CN2720327Y - Device for refrigerating using flue afferheat - Google Patents
Device for refrigerating using flue afferheat Download PDFInfo
- Publication number
- CN2720327Y CN2720327Y CN 200420060723 CN200420060723U CN2720327Y CN 2720327 Y CN2720327 Y CN 2720327Y CN 200420060723 CN200420060723 CN 200420060723 CN 200420060723 U CN200420060723 U CN 200420060723U CN 2720327 Y CN2720327 Y CN 2720327Y
- Authority
- CN
- China
- Prior art keywords
- flue
- plc controller
- heat exchanger
- hot water
- control valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model relates to a device for refrigerating using flue afferheat. A bypass flue is led out from an appropriate position on the original flue, a heat exchanger is arranged in the bypass flue, and the heat exchanger is respectively connected with a cold water inlet pipe and a hot water outlet pipe of a refrigeration system. Meanwhile, the intersection of the original flue and the bypass flue is provided with a control valve which is connected with a PLC controller through cables, the PLC controller is connected with a temperature-sensing probe in a hot-water expansion tank simultaneously, and the reutilization of flue afferheat is realized.
Description
Technical field
The utility model relates to a kind of device that utilizes heating furnace flue residue heat refrigeration.
Background technology
Many Metallurgical Enterprise, thermal power plant are when fuel combustion heating steel billet and boiler, can produce a large amount of hot gas, temperature is about 400 ℃, at present this part hot gas normally passes through flue and smoke stack emission in atmosphere, better do not recycle, not only cause energy waste, and contaminated environment.
Summary of the invention
Do not have more good utilisation approach at existing waste heat of flue gas of heating furnace, the utility model provides a kind of device that utilizes the flue residue heat refrigeration again.
Technical scheme is, a by-pass flue is drawn in the appropriate location on former flue, and a heat exchanger is set in this by-pass flue, and heat exchanger links to each other with the hot water outlet pipe with the cold water inlet of refrigeration system respectively; Simultaneously in the junction of former flue and by-pass flue a control valve is installed, this control valve is connected by cable with a PLC controller, and this PLC controller while is connected with temperature-sensing probe in the hot water expansion tank.
The beneficial effects of the utility model are, by flue residue heat heat cycles hot water, produce the cold water refrigeration by the hot water lithium bromide refrigeration machine, have realized the utilization again of flue residue heat, and good economic benefits and social benefit are arranged.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
Among the figure, 1 is heating furnace; 2 is thermostatic control valve; 3 is heat exchanger; 4 is the PLC controller; 5 is cooling tower; 6 is the hot water expansion tank; 7 is circulating pump; 8 is outlet conduit; 9 is inlet channel; 10 is the valve plate of thermostatic control valve; 11 is former flue; 12 is by-pass flue; 13 is chimney.
The specific embodiment
A by-pass flue is drawn in the appropriate location on former flue, and a heat exchanger is set in this by-pass flue, and heat exchanger links to each other with the hot water outlet pipe with the cold water inlet of refrigeration system respectively; Simultaneously in the junction of former flue and by-pass flue a control valve is installed, this control valve is connected by cable with a PLC controller, and this PLC controller while is connected with temperature-sensing probe in the hot water expansion tank.
When installing and using, guarantee that the valve plate of thermostatic control valve can be closed former flue, by-pass flue tight respectively when maximum, minimum aperture.According to the required hot water temperature of refrigeration system, set the control parameter and the control program of PLC controller, when hot water outlet pipe's water temperature is higher, temperature-sensing probe in the hot water expansion tank is passed to the PLC controller with signal, PLC controller control thermostatic control valve cuts out certain angle with its valve plate, the exhaust gas volumn that enters by-pass flue with control, thus hot water constant temperature guaranteed.
Claims (1)
- A kind of device that utilizes the flue residue heat refrigeration, comprise heating furnace, chimney, former flue, refrigeration system, it is characterized in that, a by-pass flue is drawn in the appropriate location on former flue, one heat exchanger is set in this by-pass flue, and heat exchanger links to each other with the hot water outlet pipe with the cold water inlet of refrigeration system respectively; Simultaneously in the junction of former flue and by-pass flue a control valve is installed, this control valve is connected by cable with a PLC controller, and this PLC controller while is connected with temperature-sensing probe in the hot water expansion tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060723 CN2720327Y (en) | 2004-08-13 | 2004-08-13 | Device for refrigerating using flue afferheat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060723 CN2720327Y (en) | 2004-08-13 | 2004-08-13 | Device for refrigerating using flue afferheat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2720327Y true CN2720327Y (en) | 2005-08-24 |
Family
ID=35009286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420060723 Expired - Fee Related CN2720327Y (en) | 2004-08-13 | 2004-08-13 | Device for refrigerating using flue afferheat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2720327Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589306A (en) * | 2012-03-02 | 2012-07-18 | 华电重工股份有限公司 | Device for recovering waste heat of exhaust smoke in industrial heat treatment |
| CN102827623A (en) * | 2012-09-07 | 2012-12-19 | 云南大为制焦有限公司 | Method and system for recycling waste heat of ammonia water |
| CN106197043A (en) * | 2016-07-15 | 2016-12-07 | 烟台国冶冶金水冷设备有限公司 | A kind of temperature control type heating steel billet boiler afterheat recycle device |
-
2004
- 2004-08-13 CN CN 200420060723 patent/CN2720327Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589306A (en) * | 2012-03-02 | 2012-07-18 | 华电重工股份有限公司 | Device for recovering waste heat of exhaust smoke in industrial heat treatment |
| CN102589306B (en) * | 2012-03-02 | 2014-04-09 | 华电重工股份有限公司 | Device for recovering waste heat of exhaust smoke in industrial heat treatment |
| CN102827623A (en) * | 2012-09-07 | 2012-12-19 | 云南大为制焦有限公司 | Method and system for recycling waste heat of ammonia water |
| CN106197043A (en) * | 2016-07-15 | 2016-12-07 | 烟台国冶冶金水冷设备有限公司 | A kind of temperature control type heating steel billet boiler afterheat recycle device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050824 Termination date: 20110813 |