CN207299005U - A kind of residual neat recovering system based on dividing wall type heat exchanger - Google Patents
A kind of residual neat recovering system based on dividing wall type heat exchanger Download PDFInfo
- Publication number
- CN207299005U CN207299005U CN201721114784.6U CN201721114784U CN207299005U CN 207299005 U CN207299005 U CN 207299005U CN 201721114784 U CN201721114784 U CN 201721114784U CN 207299005 U CN207299005 U CN 207299005U
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- CN
- China
- Prior art keywords
- dividing wall
- flue gas
- heat
- wall type
- type heat
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000003546 flue gas Substances 0.000 claims abstract description 58
- 238000010521 absorption reaction Methods 0.000 claims abstract description 19
- 238000011084 recovery Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical group C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 239000003345 natural gas Substances 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005713 exacerbation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Heat recovery energy-saving technical field is the utility model is related to, particularly discloses a kind of residual neat recovering system based on dividing wall type heat exchanger.The dividing wall type flue gas heat-exchange unit of circulating water pipe in the residual neat recovering system based on dividing wall type heat exchanger, including termination connection flue gas system, internal setting, it is characterised in that：The inlet channel and outlet conduit of circulating water pipe in connection respectively are provided with the dividing wall type flue gas heat-exchange unit, inlet channel connects the interior circulating water outlet of absorption type heat pump assembly, outlet conduit connects the interior circulating water intake of absorption type heat pump assembly, and internal circulation water pump is provided with outlet conduit.The utility model is simple in structure, and design is reasonable, copes with operating mode change and adjusts in real time, both reduction smog discharge temperature had been realized, has recycled the purpose of heat, and the heat of recycling is endlessly transferred out, continuous service is enabled a system to, so as to reach energy-saving target.
Description
（One）Technical field
Heat recovery energy-saving technical field is the utility model is related to, more particularly to a kind of waste heat based on dividing wall type heat exchanger returns
Receipts system.
（Two）Background technology
In recent years, with the exacerbation of air pollution and carrying forward vigorously for national energy-saving emission reduction policy, coal-burning boiler is
Substituted by natural gas boiler, contain substantial amounts of water vapour in the flue gas discharged after combustion of natural gas, the condensation of water vapour in flue gas
Latent heat accounts for the 10%-11% of natural gas low heat value, if can utilize this condensing units, can improve natural gas utilizes effect
Rate.For the exhaust gas temperature of existing gas fired-boiler mostly at 90 DEG C -150 DEG C, so high exhaust gas temperature causes a large amount of waste heats to be dissipated in
In environment.And this heat is recycled, it is necessary to flue-gas temperature is cooled to below flue gas dew point temperature, flue gas dew point temperature is
57 DEG C or so, but in China central heating field, heat supply network return water temperature generally more than 50 DEG C, if directly and flue gas heat exchange, only
Sensible heat and a small amount of latent heat, energy-saving effect and unobvious in energy recovered flue gas.
Intermediate circulating water then can be cooled to 20 DEG C -30 DEG C by absorption heat pump by driving heat source, the recirculated water of this temperature
There is larger heat transfer temperature difference with flue gas, sensible heat and latent heat in flue gas can be fully absorbed, so as to fulfill to more low-grade heat
Amount recycling and conveying, play the role of linking in heat recovery and utilization process.
（Three）The content of the invention
The utility model is in order to make up for the deficiencies of the prior art, there is provided a kind of simple in structure, reduction smog discharge temperature,
The residual neat recovering system based on dividing wall type heat exchanger of Mist heat recovering.
The utility model is achieved by the following technical solution：
Followed in a kind of residual neat recovering system based on dividing wall type heat exchanger, including termination connection flue gas system, internal setting
The dividing wall type flue gas heat-exchange unit of ring water pipe, it is characterised in that：It is provided with the dividing wall type flue gas heat-exchange unit and is followed respectively in connection
The inlet channel and outlet conduit of ring water pipe, inlet channel connect the interior circulating water outlet of absorption type heat pump assembly, outlet conduit
The interior circulating water intake of absorption type heat pump assembly is connected, internal circulation water pump is installed on outlet conduit.
The utility model realizes the recycling of heat by dividing wall type flue gas heat-exchange unit, and heat is realized by absorption type heat pump assembly
The transfer of amount utilizes, and internal circulation water pump provides the power of interior circulation water circulation use, and inlet channel and outlet conduit are as system
Necessary connecting component, be the essential part of system.
The more excellent technical solution of the utility model is：
Valve is installed on the outlet conduit, the flow for recirculated water in being adjusted according to actual operating state.
The absorption type heat pump assembly is connected with driving heat source and outer net circulating water system, is easy to implement in absorption heat pump
Heat exchange occurs in unit, transfers heat to outer net circulating water, realizes that the transfer of heat utilizes.
The dividing wall type flue gas heat-exchange unit bottom is provided with flue gas condensing water outlet, easy in time go out condensed water elimination
Go.
The flow direction of flue gas and the flow direction of interior recirculated water are on the contrary, effectively improve in the dividing wall type flue gas heat-exchange unit
Heat exchanger effectiveness of the interior recirculated water in flow process.
Dividing wall type flue gas heat-exchange unit be it is a kind of can with recovered flue gas sensible heat and the indirect type heat exchanger of latent heat, have it is corrosion-resistant
Design structure, can be effectively resistant to the corrosion of flue gas condensing water, be designed using split structure, utilize detachable maintaining.
Flue gas enters from the side of dividing wall type flue gas heat-exchange unit, exchanges heat with the recirculated water in interior circulating water pipe, in flue gas
Heat is absorbed by recirculated water, and when flue-gas temperature is cooled to below dew-point temperature, the water vapour in flue gas starts to condense heat release, cold
Condensate flow to condensation water tank by the flue gas condensing water drainpipe of exchanger base.The flue gas after temperature is reduced through dividing wall type flue gas
Heat exchanger exit is arranged to air to chimney.
Absorb the recirculated water after heat and reach internal circulation water pump through outlet conduit, moved after being pressurizeed by internal circulation water pump
Power, to overcome the resistance of whole cyclic process.Interior recirculated water after pressurization enters absorption type heat pump assembly through outlet conduit again,
Heat exchange occurs for the recirculated water in absorption type heat pump assembly with outer net, transfers heat to the recirculated water of outer net, realizes heat
Transfer utilizes.Exothermic interior circulating water temperature reduces, and the ability for absorbing flue gas heat is regained, then through inlet channel
Dividing wall type flue gas heat-exchange unit is returned, participates in heat transfer process again.
The utility model is simple in structure, and design is reasonable, copes with operating mode change and adjusts in real time, had both realized reduction flue gas
Exhaust temperature, recycles the purpose of heat, and the heat of recycling is endlessly transferred out, and enables a system to continuous service,
So as to reach energy-saving target.
（Four）Brief description of the drawings
The utility model will be further described below with reference to the accompanying drawings.
Fig. 1 is the structure diagram of the utility model.
In figure, 1 dividing wall type flue gas heat-exchange unit, 2 valves, 3 internal circulation water pumps, 4 absorption type heat pump assemblys, 5 inlet channels, 6
Outer net circulating water system, 7 driving heat sources.
（Five）Embodiment
Attached drawing is a kind of specific embodiment of the utility model.The embodiment includes termination connection flue gas system, inside is set
The dividing wall type flue gas heat-exchange unit 1 of interior circulating water pipe is put, recirculated water in connection respectively is provided with the dividing wall type flue gas heat-exchange unit 1
The inlet channel 5 and outlet conduit of pipe, inlet channel 5 connect the interior circulating water outlet of absorption type heat pump assembly 4, and outlet conduit connects
The interior circulating water intake of absorption type heat pump assembly 4 is connect, internal circulation water pump 3 is installed on outlet conduit；Pacify on the outlet conduit
Equipped with valve 2；The absorption type heat pump assembly 4 is connected with driving heat source 7 and outer net circulating water system 6；The dividing wall type flue gas
1 bottom of heat exchanger is provided with flue gas condensing water outlet；The flow direction of flue gas is followed with interior in the dividing wall type flue gas heat-exchange unit 1
The flow direction of ring water is opposite.
Using the residual neat recovering system of the utility model, flue gas of the flue gas first from 1 side of dividing wall type flue gas heat-exchange unit enters
Mouth enters, and after the interior recirculated water heat exchange in interior circulating water pipe, is discharged from the opposite side of dividing wall type flue gas heat-exchange unit 1.Flue gas with
Interior recirculated water reverse flow, ensures larger heat transfer temperature difference and preferable heat transfer effect.Flue gas is warm under the cooling of interior recirculated water
Degree is lasting to be reduced, and is collected after the water vapour condensation in flue gas from the flue gas condensing water outlet outflow of bottom.After being heated
Interior recirculated water is through valve 2, after being pressurizeed by internal circulation water pump 3, into absorption type heat pump assembly 4, and under the driving of driving heat source 7,
Heat is extracted by interior recirculated water, and is transferred to outer net circulating water system 6.Interior recirculated water through inlet channel 5, returns again again
Heat exchange is participated in dividing wall type flue gas heat-exchange unit 1.Outer circulation water from outer net circulating water system 6 passes through absorption type heat pump assembly
4 internal heat process, absorbs the heat of heat and driving heat source 7 from interior recirculated water, delivers heat to outer net, reach
The purpose of heat recovery and utilization.
Claims (5)
- A kind of 1. circulation in residual neat recovering system based on dividing wall type heat exchanger, including termination connection flue gas system, internal setting The dividing wall type flue gas heat-exchange unit of water pipe（1）, it is characterised in that：The dividing wall type flue gas heat-exchange unit（1）On be provided with and connect respectively The inlet channel of interior circulating water pipe（5）And outlet conduit, inlet channel（5）Connect absorption type heat pump assembly（4）Interior recirculated water Outlet, outlet conduit connection absorption type heat pump assembly（4）Interior circulating water intake, internal circulation water pump is installed on outlet conduit （3）.
- 2. the residual neat recovering system according to claim 1 based on dividing wall type heat exchanger, it is characterised in that：The outlet pipe Valve is installed on road（2）.
- 3. the residual neat recovering system according to claim 1 based on dividing wall type heat exchanger, it is characterised in that：It is described absorption Heat pump unit（4）It is connected with driving heat source（7）And outer net circulating water system（6）.
- 4. the residual neat recovering system according to claim 1 based on dividing wall type heat exchanger, it is characterised in that：The dividing wall type Flue gas heat-exchange unit（1）Bottom is provided with flue gas condensing water outlet.
- 5. the residual neat recovering system according to claim 1 based on dividing wall type heat exchanger, it is characterised in that：The dividing wall type Flue gas heat-exchange unit（1）The flow direction of interior flue gas is opposite with the flow direction of interior recirculated water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721114784.6U CN207299005U (en) | 2017-09-01 | 2017-09-01 | A kind of residual neat recovering system based on dividing wall type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721114784.6U CN207299005U (en) | 2017-09-01 | 2017-09-01 | A kind of residual neat recovering system based on dividing wall type heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207299005U true CN207299005U (en) | 2018-05-01 |
Family
ID=62438541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721114784.6U Active CN207299005U (en) | 2017-09-01 | 2017-09-01 | A kind of residual neat recovering system based on dividing wall type heat exchanger |
Country Status (1)
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|---|---|
| CN (1) | CN207299005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489255A (en) * | 2018-11-22 | 2019-03-19 | 青岛国信海天中心建设有限公司 | A kind of flue gas condensing heat recovery apparatus |
-
2017
- 2017-09-01 CN CN201721114784.6U patent/CN207299005U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489255A (en) * | 2018-11-22 | 2019-03-19 | 青岛国信海天中心建设有限公司 | A kind of flue gas condensing heat recovery apparatus |
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