CN204177225U - Two-phase multi-stage heat exchanger - Google Patents
Two-phase multi-stage heat exchanger Download PDFInfo
- Publication number
- CN204177225U CN204177225U CN201420630918.XU CN201420630918U CN204177225U CN 204177225 U CN204177225 U CN 204177225U CN 201420630918 U CN201420630918 U CN 201420630918U CN 204177225 U CN204177225 U CN 204177225U
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- water
- valve
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- heat exchanger
- pipeline
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of two-phase multi-stage heat exchanger, water in one-level water-to-water heat exchanger and secondary water-to-water heat exchanger by pipeline enter respectively absorb heat in one-level flue gas heat-exchange unit and secondary smoke heat exchanger after be evaporated to water vapour, water vapour is entered in one-level water-to-water heat exchanger and secondary water-to-water heat exchanger and by left feed pump respectively by pipeline, left inlet valve, right inlet valve, right feed pump, left flowing water Valve, right flowing water Valve, secondary streams gauge, one-level flowmeter, one-level inlet valve, one-level bypass valve, primary effluent valve, one-level electrically operated valve, secondary inlet valve, second-stage electric valve, secondary effluent valve, the water at low temperature heat exchange that secondary bypass valve stream comes, being condensed into water after the water vapour release latent heat of vaporization enters in one-level flue gas heat-exchange unit and secondary smoke heat exchanger again, circulation like this.The utility model has that structure is simple, coefficient of heat transfer advantages of higher, can extensively promote the use of.
Description
Technical field
The utility model belongs to equipment or the device technique field of heat exchange, is specifically related to a kind of two-phase multi-stage heat exchanger.
Background technology
Nearly ten years, due to energy shortage, along with energy conservation is carried out further.Various novel, the energy-conservation advanced type of furnace is gradually improved, and makes stove cellar for storing things radiation loss obviously decline after adopting the high-quality insulation materials such as refractory fibre.Adopt advanced burner to enhance burning, reduce imperfect combustion amount, empty combustion is also tending towards reasonable.But reduction exhaust gas heat loss becomes estranged, the technology of Mist heat recovering is still in progress unhappy.In order to improve the thermal efficiency of cellar for storing things stove further, reach energy-saving and cost-reducing object, Mist heat recovering is also an important energy saving way.
The heat that flue gas is mainly carried by certain heat exchange mode by flue gas waste heat recovery converts utilizable heat to.Usually all S is contained in the low-temperature flue gas of industrial circle
2o
3etc. corrosive gas componant, so when reclaiming low-temperature flue gas waste heat, all being annoying by the cold end corrosion problem of flue gas acid dew point, making low-temperature flue gas do not effectively not utilized always.If in order to improve waste heat recovery efficiency, easily causing cold end corrosion after reducing exhaust gas temperature, equipment is scrapped in a short time; If in order to proterctive equipment, exhaust gas temperature can be made again too high, reduce utilization rate of waste heat.Existing equipment cannot while effectively avoiding acid dew point, again can waste heat farthest in recovered flue gas.
Summary of the invention
Technical problem to be solved in the utility model is the shortcoming overcoming above-mentioned heat exchanger, provides that a kind of coefficient of heat transfer is high, structure is simple, without the two-way multi-stage heat exchanger of cold end corrosion.
Solving the problems of the technologies described above adopted technical scheme is that it has: the water inlet of one-level flue gas heat-exchange unit is connected by the delivery port of pipeline and one-level water-to-water heat exchanger, the delivery port of one-level flue gas heat-exchange unit is connected by the water inlet of pipeline and one-level water-to-water heat exchanger, the water inlet of secondary smoke heat exchanger is connected by the delivery port of pipeline and secondary water-to-water heat exchanger, the delivery port of secondary smoke heat exchanger is connected by the water inlet of pipeline and secondary water-to-water heat exchanger, running water pipe is connected by the entrance being arranged on left inlet valve on pipeline and left feed pump, be connected by the entrance being arranged on right inlet valve on pipeline and right feed pump, left feed pump delivery outlet is connected by the entrance being arranged on left flowing water Valve on pipeline and secondary streams gauge, right feed pump delivery outlet is connected by the entrance being arranged on right flowing water Valve on pipeline and secondary streams gauge, the outlet of secondary streams gauge is successively by being arranged on the secondary effluent valve on pipeline, second-stage electric valve, the water inlet of secondary inlet valve and secondary water-to-water heat exchanger is connected, the outlet of secondary streams gauge is connected by the water inlet being arranged on secondary bypass valve on pipeline and secondary water-to-water heat exchanger, left feed pump delivery outlet is connected by the entrance being arranged on left flowing water Valve on pipeline and one-level flowmeter, right feed pump delivery outlet is connected by the entrance being arranged on right flowing water Valve on pipeline and one-level flowmeter, the outlet of one-level flowmeter is successively by being arranged on the one-level inlet valve on pipeline, one-level electrically operated valve, the water inlet of primary effluent valve and one-level water-to-water heat exchanger is connected, the outlet of one-level flowmeter is connected by the water inlet being arranged on one-level bypass valve on pipeline and one-level water-to-water heat exchanger, the delivery port of one-level water-to-water heat exchanger is connected by pipeline and client.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further described, but the utility model is not limited to these embodiments.
Embodiment 1
In FIG, two-phase multi-stage heat exchanger of the present utility model is made up of one-level flue gas heat-exchange unit 1, secondary smoke heat exchanger 2, one-level water-to-water heat exchanger 3, secondary water-to-water heat exchanger 4, secondary bypass valve 5, secondary effluent valve 6, second-stage electric valve 7, secondary inlet valve 8, secondary streams gauge 9, left flowing water Valve 10, right flowing water Valve 11, right feed pump 12, right inlet valve 13, left inlet valve 14, left feed pump 15, one-level flowmeter 16, one-level inlet valve 17, one-level electrically operated valve 18, one-level bypass valve 19, primary effluent valve 20 connection.
The water inlet of one-level flue gas heat-exchange unit 1 is connected by the delivery port of pipeline and one-level water-to-water heat exchanger 3, the delivery port of one-level flue gas heat-exchange unit 1 is connected by the water inlet of pipeline and one-level water-to-water heat exchanger 3, water in one-level water-to-water heat exchanger 3 enters into and carries out heat exchange with flue gas in one-level flue gas heat-exchange unit 1 and become steam, enters in one-level water-to-water heat exchanger 3.The water inlet of secondary smoke heat exchanger 2 is connected by the delivery port of pipeline and secondary water-to-water heat exchanger 4, the delivery port of secondary smoke heat exchanger 2 is connected by the water inlet of pipeline and secondary water-to-water heat exchanger 4, water in secondary water-to-water heat exchanger 4 enters into and carries out heat exchange with flue gas in secondary smoke heat exchanger 2 and become steam, enters in secondary water-to-water heat exchanger 4.One-level flue gas heat-exchange unit 1, secondary smoke heat exchanger 2 form a heat-exchange system.
The secondary heat exchange system of the present embodiment is made up of one-level water-to-water heat exchanger 3, secondary water-to-water heat exchanger 4, left feed pump 15, left inlet valve 14, right inlet valve 13, right feed pump 12, left flowing water Valve 10, right flowing water Valve 11, secondary streams gauge 9, one-level flowmeter 16, one-level inlet valve 17, one-level bypass valve 19, primary effluent valve 20, one-level electrically operated valve 18, secondary inlet valve 8, second-stage electric valve 7, secondary effluent valve 6, secondary bypass valve 5 connection.
Lead up to from the water of running water pipe the left inlet valve 14 be arranged on pipeline and enter left feed pump 15, the right inlet valve 13 be arranged on pipeline of separately leading up to enters right feed pump 12, left feed pump 15 and right feed pump 12 are in parallel and exchange and substitute running, ensure system inflow.Left feed pump 15 delivery outlet is connected with the entrance of secondary streams gauge 9 by the left flowing water Valve 10 be arranged on pipeline, right feed pump 12 delivery outlet is connected with the entrance of secondary streams gauge 9 by the right flowing water Valve 11 be arranged on pipeline, the outlet of secondary streams gauge 9 is successively by being arranged on the secondary effluent valve 6 on pipeline, second-stage electric valve 7, secondary inlet valve 8 is connected with the water inlet of secondary water-to-water heat exchanger 4, the outlet of secondary streams gauge 9 is connected with the water inlet of secondary water-to-water heat exchanger 4 by the secondary bypass valve 5 be arranged on pipeline, secondary streams gauge 9 measures discharge and by water by secondary inlet valve 8, second-stage electric valve 7, secondary effluent valve 6 is input in secondary water-to-water heat exchanger 4, secondary bypass valve 5 is at secondary effluent valve 6, second-stage electric valve 7, when any one valve in secondary inlet valve 8 breaks down, secondary bypass valve 5 can be opened, water enters into secondary water-to-water heat exchanger 4 by secondary bypass valve 5, outlet pipe and one-level water-to-water heat exchanger 3 water inlet of secondary water-to-water heat exchanger 4 are connected, water in secondary water-to-water heat exchanger 4 in pipeline absorbs heat makes the steam outside water pipe become water.
Lead up to from the water of running water pipe the left inlet valve 14 be arranged on pipeline and enter left feed pump 15, the right inlet valve 13 be arranged on pipeline of separately leading up to enters right feed pump 12, left feed pump 15 and right feed pump 12 are in parallel and exchange and substitute running, ensure system inflow.Left feed pump 15 delivery outlet is connected with the entrance of one-level flowmeter 16 by the left flowing water Valve 10 be arranged on pipeline, right feed pump 12 delivery outlet is connected with the entrance of one-level flowmeter 16 by the right flowing water Valve 11 be arranged on pipeline, the outlet of one-level flowmeter 16 is successively by being arranged on the one-level inlet valve 17 on pipeline, one-level electrically operated valve 18, primary effluent valve 20 is connected with the water inlet of one-level water-to-water heat exchanger 3, the outlet of one-level flowmeter 16 is connected with the water inlet of one-level water-to-water heat exchanger 3 by the one-level bypass valve 19 be arranged on pipeline, one-level flowmeter 16 measures discharge and by water by one-level inlet valve 17, one-level electrically operated valve 18, primary effluent valve 20 is input in one-level water-to-water heat exchanger 3, one-level bypass valve 19 is at one-level inlet valve 17, one-level electrically operated valve 18, when any one valve in primary effluent valve 20 breaks down, one-level bypass valve 19 can be opened, water enters into one-level water-to-water heat exchanger 3 by one-level bypass valve 19, water in one-level water-to-water heat exchanger 3 in pipeline absorbs heat makes the steam outside water pipe become water, the outlet pipe of one-level water-to-water heat exchanger 3 exports hot water to client.
The utility model, by regulating the one-level electrically operated valve 18 that is arranged on pipeline and second-stage electric valve 7, controls the flow of water in pipeline in one-level water-side heat 3 and then control and enters temperature that the flow of water in pipeline in the temperature of water in one-level fume side heat exchanger 1 and secondary water-side heat 4 and then control enters water in secondary smoke side heat exchanger 2 and make the temperature of equipment metallic walls remain on more than acid dew point 5 ~ 10 DEG C to avoid causing cold end corrosion.
Claims (1)
1. a two-phase multi-stage heat exchanger, it is characterized in that: the water inlet of one-level flue gas heat-exchange unit (1) is connected by the delivery port of pipeline and one-level water-to-water heat exchanger (3), the delivery port of one-level flue gas heat-exchange unit (1) is connected by the water inlet of pipeline and one-level water-to-water heat exchanger (3), the water inlet of secondary smoke heat exchanger (2) is connected by the delivery port of pipeline and secondary water-to-water heat exchanger (4), the delivery port of secondary smoke heat exchanger (2) is connected by the water inlet of pipeline and secondary water-to-water heat exchanger (4), running water pipe is connected with the entrance of left feed pump (15) by being arranged on the left inlet valve (14) on pipeline, be connected with the entrance of right feed pump (12) by being arranged on the right inlet valve (13) on pipeline, left feed pump (15) delivery outlet is connected with the entrance of secondary streams gauge (9) by being arranged on the left flowing water Valve (10) on pipeline, right feed pump (12) delivery outlet is connected with the entrance of secondary streams gauge (9) by being arranged on the right flowing water Valve (11) on pipeline, the outlet of secondary streams gauge (9) is successively by being arranged on the secondary effluent valve (6) on pipeline, second-stage electric valve (7), secondary inlet valve (8) is connected with the water inlet of secondary water-to-water heat exchanger (4), the outlet of secondary streams gauge (9) is connected with the water inlet of secondary water-to-water heat exchanger (4) by being arranged on the secondary bypass valve (5) on pipeline, left feed pump (15) delivery outlet is connected with the entrance of one-level flowmeter (16) by being arranged on the left flowing water Valve (10) on pipeline, right feed pump (12) delivery outlet is connected with the entrance of one-level flowmeter (16) by being arranged on the right flowing water Valve (11) on pipeline, the outlet of one-level flowmeter (16) is successively by being arranged on the one-level inlet valve (17) on pipeline, one-level electrically operated valve (18), primary effluent valve (20) is connected with the water inlet of one-level water-to-water heat exchanger (3), the outlet of one-level flowmeter (16) is connected with the water inlet of one-level water-to-water heat exchanger (3) by being arranged on the one-level bypass valve (19) on pipeline, the delivery port of one-level water-to-water heat exchanger (3) is connected by pipeline and client.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420630918.XU CN204177225U (en) | 2014-05-19 | 2014-10-28 | Two-phase multi-stage heat exchanger |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420256542 | 2014-05-19 | ||
| CN2014202565420 | 2014-05-19 | ||
| CN201420630918.XU CN204177225U (en) | 2014-05-19 | 2014-10-28 | Two-phase multi-stage heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204177225U true CN204177225U (en) | 2015-02-25 |
Family
ID=52566032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420630918.XU Expired - Fee Related CN204177225U (en) | 2014-05-19 | 2014-10-28 | Two-phase multi-stage heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204177225U (en) |
-
2014
- 2014-10-28 CN CN201420630918.XU patent/CN204177225U/en not_active Expired - Fee Related
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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: 20150225 Termination date: 20171028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |