CN202813773U - Heat transfer structure provided with flow guide plate - Google Patents
Heat transfer structure provided with flow guide plate Download PDFInfo
- Publication number
- CN202813773U CN202813773U CN2012204844532U CN201220484453U CN202813773U CN 202813773 U CN202813773 U CN 202813773U CN 2012204844532 U CN2012204844532 U CN 2012204844532U CN 201220484453 U CN201220484453 U CN 201220484453U CN 202813773 U CN202813773 U CN 202813773U
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- Prior art keywords
- deflector
- fin
- tube
- heat exchange
- flow
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The utility model discloses a heat transfer structure provided with a flow guide plate. The structure comprises a plurality of fin tubes which are closely distributed to form a fin tube bundle. The heat transfer structure further comprises a plurality of flow guide plates, wherein the flow guide plates are attached to the fin tube bundle, and adjacent portions of the closely-distributed fin tubes and flow guide openings of the flow guide plates are stagger. A plurality of outer flow guide plates arranged between the outer side of the fin tube bundle and an outer shell and inner flow guide plates on the inner side of the fin tube bundle are added so that a flow path of smoke is tightly attached to fins and light tubes. Therefore, heat transferring is further enhanced, flow velocity distribution of fluids in the shell side is remarkably improved, and the number of dead zones or short paths of smoke flow is reduced.
Description
Technical field
The utility model belongs to the Thermal Equipment field, relates to a kind of heat exchange structure with deflector, more particularly, relates to a kind of deflector heat exchange structure that is applied on the finned tube exchanger.
Background technology
Fuel gas buring can comprise for the heat that utilizes latent heat two parts of water vapour in the sensible heat of flue gas and the flue gas.The plain edition heat exchanger is subjected to the restriction of its structure, and high fume temperature can only utilize the low heat value part of combustion gas; Condensing heat exchanger since exhaust gas temperature very low, the sensible heat that not only can fully absorb flue gas can also absorb latent heat, utilization be the high heating value of flue gas.Therefore, the utilization efficiency of heat energy of condensing heat exchanger can improve greatly.For heat and the collection condensate water that fully absorbs high-temperature flue gas, its general secondary heat exchange mode that adopts, during work, high-temperature flue gas enters sensible heat exchanger and condensation segment heat exchanger successively from the bottom to top, and water (flow) direction is just in time opposite, pass through first the condensation segment heat exchanger, cold water enters main heat exchanger again and absorbs the flame sensible heat after the condensation segment heat exchanger absorbs the high-temperature flue gas waste heat.Flue-gas temperature will be down to normal temperature after heat exchanger absorbs sensible heat and latent heat, discharged by the top flue, for safe and reliable discharge flue gas, condensing heat exchanger adopts the mode of forced fume exhaust to discharge flue gas, condense so that the water vapour in the flue gas is as much as possible, this latent heat amount and sensible heat amount that heated water is absorbed is just more, and its energy-saving effect is just better.So condensing heat exchanger has utilized the heat that falls as flue gas loss, and heat loss due to exhaust gas has been become useful heat, the degree that this part heat effectively utilizes has determined the energy-saving effect of condensing heat exchanger.
Yet the flue gas that enters condensing heat exchanger generally is superheat state, and along with the reduction of flue-gas temperature and the condensation of steam, flue gas is gradually to the saturation state transition, and state at last reaches capacity.According to measuring, when exhaust gas temperature about 50 ° of C, condensing heat exchanger exhanst gas outlet state is close to saturation state, approaching degree is relevant with the component of flue gas, heat exchanger structure and heat and mass transfer process.Experimental data shows that in the prior art, the flow path of flue gas still exists much " dead band " phenomenon or " short circuit " state, has reduced heat exchange efficiency.
The finned tube that uses in the fin-tube heat exchanger has been exactly in (no matter outer surface or inner surface) processing on original tube surface a lot of fin plates in fact, original surface is expanded, and forms a kind of heat transfer element of uniqueness.Flue gas is from the import to the outlet, because condensing of steam causes the composition of flue gas to change, the physical property of flue gas and condensing heat-exchange coefficient all change.When the surface temperature of condensing heat exchanger is lower than the flue gas dew point temperature, steam generation condensation in the flue gas, heat exchanger surface is moistening, form condensate film, this condensate film is surrounded by flue gas, and flue gas is diffused into cold surface by the flue gas boundary layer, and heat is delivered to fin surface by condensate film again.In this process, because in the prior art, spacing is larger between the light pipe of finned tube, so that smoke gas flow contacts insufficient with light pipe and the turbulent fluctuation degree is not high, has reduced convection transfer rate, thereby can't further improve heat transfer efficiency.
In the use procedure of heat exchanger, usually adopt the structure of fin and shell to limit heat conducting flow process so that the shell-side medium in flow process, have several sections strokes will with the pipe PARALLEL FLOW, reduced heat transfer effect.Especially in current finned tube exchanger, the fin plate structure is more simplified usually, does not have deflector in the whole heat exchange structure, and this has just caused the flow path of flue gas still to have much " dead band " phenomenon or " short circuit " state, has reduced heat exchange efficiency.
The utility model content
Problem in view of above-mentioned prior art exists has proposed the utility model.
Therefore, the technical problems to be solved in the utility model is, how to overcome finned tube exchanger structural design deficiency in the prior art and cause the heat exchange of flow of flue gas path to have many " dead band " phenomenons or " short circuit " state, the problem that heat exchange efficiency is low, and how to improve heat transfer structure to reach passing the mobile purpose of forcing water conservancy diversion of fluid (gas) wherein.
For solving the problems of the technologies described above, the utility model provides following technical scheme: a kind of heat exchange structure with deflector, comprise a plurality of finned tubes, described a plurality of finned tube close-packed arrays forms the finned tube tube bank, this heat exchange structure also comprises: a plurality of deflectors, described deflector and finned tube tube bank fit, and the adjacent of compact arranged finned tube and the flow-guiding mouth of deflector stagger mutually.
As a kind of preferred version of the heat exchange structure with deflector described in the utility model, the fin straight tube that wherein said finned tube tube bank is closely arranged for a plurality of fin straight tubes is restrained.
As a kind of preferred version of the heat exchange structure with deflector described in the utility model, wherein said fin straight tube tube bank arranged outside has outer deflector; Described outer deflector is that the cross section is " V " type strip deflector with radian, fits with the fin straight tube outside, and the adjacent of compact arranged fin straight tube and the flow-guiding mouth of outer deflector stagger mutually.
As a kind of preferred version of the heat exchange structure with deflector described in the utility model, wherein said fin straight tube tube bank inboard is provided with interior deflector; Described interior deflector is that the cross section is " V " type strip deflector with radian, fits with the fin straight tube outside, and the adjacent of compact arranged fin straight tube and the flow-guiding mouth of interior deflector stagger mutually.
As a kind of preferred version of the heat exchange structure with deflector described in the utility model, the helical fin coil pipe that wherein said finned tube tube bank is sticked to form for a plurality of helical fin coil pipe turned upside down is restrained.
As a kind of preferred version of the heat exchange structure with deflector described in the utility model, the arranged outside of wherein said helical fin coil pipe tube bank has outer deflector; Described outer deflector is " V " type helical form deflector, fits with the helical fin coil pipe outside, and the adjacent of compact arranged helical fin coil pipe and the flow-guiding mouth of outer deflector stagger mutually.
A kind of preferred version as the heat exchange structure with deflector described in the utility model, the inboard of wherein said helical fin coil pipe is provided with interior deflector, described interior deflector is for having the cylindric deflector of a plurality of holes and/or seam on it, fit with the helical fin coil pipe is inboard, the adjacent of a plurality of close-packed arrays helical fin coil pipes and the flow-guiding mouth of interior deflector stagger mutually.
As a kind of preferred version of the heat exchange structure with deflector described in the utility model, wherein said finned tube tube bank is a plurality of compact arranged fin coiled pipes tube banks.
As a kind of preferred version of the heat exchange structure with deflector described in the utility model, wherein said fin coiled pipe tube bank arranged outside has outer deflector; Described outer deflector is that the cross section is " V " type strip deflector with radian, fits with the fin coiled pipe outside, and the adjacent of compact arranged fin coiled pipe and the flow-guiding mouth of outer deflector stagger mutually.
A kind of preferred version as the heat exchange structure with deflector described in the utility model, wherein said fin coiled pipe tube bank inboard is provided with interior deflector, described interior deflector is that the cross section is " V " type strip deflector with radian, fit with the fin coiled pipe is inboard, the adjacent of a plurality of close-packed arrays fin coiled pipes and the flow-guiding mouth of interior deflector stagger mutually.
Integral arrangement of the present utility model can improve heat exchange efficiency.The utility model has adopted the heat exchange structure with deflector, heat conduction matter flows downward from the top, passes first heat exchanger on every side finned tube and outer deflector, then passes finned tube and the interior deflector of smoke discharging pipe, along smoke discharging pipe, adverse current is emptying to exhaust opening.Take the heat exchange mode of adverse current, so that the outlet temperature of water more likely is higher than exhaust gas temperature, can greatly improve heat exchange efficiency, increase the heat exchange amount.The utility model is provided with outer, interior deflector, is conducive to reduce " dead band " of smoke gas flow, further improves the shell-side fluid velocity flow profile.In the utility model, by increasing some outer deflectors between the circumference finned-tube bundle outside and shell and the deflector that is positioned at smoke discharging pipe finned-tube bundle inboard, so that the flow path of flue gas is close to fin and light pipe, can further strengthen heat exchange, obviously improve the shell-side fluid velocity flow profile, reduce " dead band " or " short circuit " of smoke gas flow.
Description of drawings
Fig. 1 is the cross section structure schematic diagram of restraining the single outer deflector that fits among embodiment of the utility model with the fin straight tube.
Fig. 2 is the schematic top plan view of restraining the single outer deflector that fits in the utility model with the fin straight tube.
Fig. 3 is that a plurality of deflectors that fit with the fin straight tube tube bank that is circumference uniform distribution among another embodiment of the utility model make up the schematic diagram that arranges.
Fig. 4 is the principle schematic when flue gas is crossed the outer deflector of fin straight tube tube bank among embodiment of the utility model.
Fig. 5 is the principle schematic of the utility model when also flue gas is crossed the interior deflector of in line shape fin straight tube tube bank among embodiment.
Fig. 6 is the overall structure schematic diagram that the utility model and finned coil are restrained the outer deflector that fits.
Fig. 7 is the side schematic view that the utility model and finned coil are restrained the outer deflector that fits.
Fig. 8 is that the finned coil with outer deflector is restrained cross-sectional schematic among embodiment of the utility model.
Fig. 9 is that the finned coil with interior deflector is restrained cross-sectional schematic among embodiment of the utility model.
Figure 10 is the schematic diagram when flue gas is crossed the interior deflector of fin coiled pipe tube bank among embodiment of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Such as Fig. 1～shown in Figure 10, among the figure, outer deflector 1, interior deflector 2, flow-guiding mouth 3.
Alleged " embodiment " or " embodiment " refer to be contained in special characteristic, structure or the characteristic at least one implementation of the utility model herein.Different local in this manual " in one embodiment " that occur not are all to refer to same embodiment, neither be independent or the embodiment mutually exclusive with other embodiment optionally.
In the description of the present utility model, term " on ", the indicating position such as D score, " left side ", " right side ", " interior ", " outward " or position relationship be based on orientation shown in the drawings or position relationship, it only is the utility model rather than require the utility model with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model for convenience of description.
As shown in Figure 1, Fig. 1 is the cross section structure schematic diagram of restraining the single outer deflector that fits among embodiment of the utility model with the fin straight tube.In this embodiment, this single outer deflector 1 is " V " type strip deflector with radian for the cross section.
As shown in Figure 2, Fig. 2 is the schematic top plan view of restraining the single outer deflector that fits in the utility model with the fin straight tube.In one embodiment, the outer deflector that this is single, its length matches with the length of fin straight tube.
As shown in Figure 3, Fig. 3 is the deflector structure schematic diagram that fits with the fin straight tube tube bank that is circumference uniform distribution among another embodiment of the utility model.In this embodiment, by one group of deflector of cylindrical arrangement that a plurality of single outer deflectors 1 form, it forms certain interval each other, forms flow-guiding mouth 3.The effect of described flow-guiding mouth 3 be for the transmission of thermal source play specific guide to effect.
As shown in Figure 4, Fig. 4 is the principle schematic when flue gas is crossed the outer deflector of fin straight tube tube bank among embodiment of the utility model.In this embodiment, this is with the heat exchange structure of deflector, comprise a plurality of finned tubes, described a plurality of fin straight tube close-packed arrays forms the tube bank of fin straight tube, this heat exchange structure also comprises: a plurality of outer deflectors 1, described outer deflector 1 fits with the tube bank of fin straight tube, and the flow-guiding mouth 3 of the adjacent of compact arranged fin straight tube and outer deflector 1 staggers mutually.This place is stated outer deflector 1 and is fitted with the fin straight tube outside, and its essence is that outer deflector 1 has certain gap with the fin straight tube outside, is convenient to the thermal source conduction.
In this embodiment, heat conduction matter (flue gas) upwards flows from the below, pass first the fin straight tube, then pass the outer deflector 1 of fin straight tube tube bank top, along smoke discharging pipe, adverse current is emptying to exhaust opening, and in whole process, fluid media (medium) (water) is finished the heat exchange with heat conduction matter (flue gas) in fin straight tube inside.
As shown in Figure 5, Fig. 5 is the principle schematic of the utility model when also flue gas is crossed the interior deflector of in line shape fin straight tube tube bank among embodiment.In this embodiment, described fin straight tube tube bank is in line shape, and its inboard is provided with interior deflector 2; Described interior deflector 2 is " V " type strip deflector with radian for the cross section, fits with the fin straight tube outside, and the flow-guiding mouth 3 of the adjacent of compact arranged fin straight tube and interior deflector 2 staggers mutually.Form the fin straight tube of fin straight tube tube bank through secondary operations, so that fin plate is along described fin straight tube axis direction infolding, by bending, cutting or extrusion process, so that the fin infolding face on the mozzle that the fin infolding face on described each fin straight tube is adjacent fits each other in twos.Thereby so that spacing obviously reduces between the circular spiral finned tube mozzle, thereby so that smoke gas flow and mozzle carry out more fully contact scour, strengthen heat exchange, improve the turbulent fluctuation degree, increase convection transfer rate, effectively reach the purpose that strengthens heat transfer, improved heat exchange efficiency, whole heat exchanger volume is further reduced.
Such as Fig. 6, shown in Figure 7, Fig. 6 is the overall structure schematic diagram that the utility model and finned coil are restrained the outer deflector that fits; Fig. 7 is to be the side schematic view that the utility model and finned coil are restrained the outer deflector that fits.In this embodiment, described outer deflector 1 is " V " type helical form deflector, fits with the helical fin coil pipe outside.
As shown in Figure 8, Fig. 8 is that the finned coil with outer deflector is restrained cross-sectional schematic among embodiment of the utility model.In this embodiment, the arranged outside of described helical fin coil pipe tube bank has outer deflector 1; Described outer deflector 1 is " V " type helical form deflector, fits with the helical fin coil pipe outside, and the flow-guiding mouth 3 of the adjacent of compact arranged helical fin coil pipe and outer deflector 1 staggers mutually.Heat conduction matter (flue gas) flows respectively up and down, pass the deflector of circular spiral finned coil around the heat exchanger and below or top, then the helical fin coil pipe that passes smoke discharging pipe respectively with the outer deflector 1 of top or the outer deflector 1 of below, along smoke discharging pipe, adverse current is emptying to exhaust opening, in whole process, fluid media (medium) is finished the heat exchange with heat conduction matter (flue gas) in circular spiral finned tube inside.
As shown in Figure 9, Fig. 9 is that the finned coil with interior deflector is restrained cross-sectional schematic among embodiment of the utility model.In this embodiment, the inboard of described helical fin coil pipe is provided with interior deflector 2, described interior deflector 2 is for having the cylindric deflector of a plurality of holes and/or seam on it, fit with the helical fin coil pipe is inboard, the adjacent of a plurality of close-packed arrays helical fin coil pipes and the flow-guiding mouth 3 of interior deflector 2 stagger mutually.
As shown in figure 10, Figure 10 is the schematic diagram when flue gas is crossed the interior deflector of fin coiled pipe tube bank among embodiment of the utility model.In this embodiment, fin in the tube bank of fin coiled pipe is through secondary operations, so that fin is along described coiled pipe mozzle axis direction infolding, by bending, cutting or extrusion process, so that the fin infolding face on the mozzle that the fin infolding face on described each coiled pipe mozzle is adjacent fits each other in twos.Some interior deflectors 2 with radian, deflector 2 be " V " type strip deflector with radian for the cross section in this, with the applying of fin coiled pipe inboard, the adjacent of a plurality of close-packed arrays fin coiled pipes and the flow-guiding mouth 3 of interior deflector 2 stagger mutually.This place is stated interior deflector 2 and is fitted with the fin coiled pipe is inboard, and its essence is that interior deflector 2 has certain gap with fin coiled pipe inboard, is convenient to the thermal source conduction.
In this embodiment, heat conduction matter (flue gas) flows downward from the top, pass first the fin coiled pipe, then pass the interior deflector 2 of fin coiled pipe below, adverse current is emptying to exhaust opening, in whole process, fluid media (medium) is finished the heat exchange with heat conduction matter (flue gas) in fin coiled pipe inside.
Thus, in the utility model, by increase some between the finned-tube bundle outside and shell outer deflector and the interior deflector of finned-tube bundle inboard, so that the flow path of flue gas is close to fin and light pipe, can further strengthen heat exchange, obviously improve the shell-side fluid velocity flow profile, reduce " dead band " or " short circuit " of smoke gas flow.
In sum, integral arrangement of the present utility model can improve heat exchange efficiency.The utility model has adopted the heat exchange structure with deflector, and heat conduction matter flows downward from the top, takes the heat exchange mode of adverse current, so that the outlet temperature of water more likely is higher than exhaust gas temperature, can greatly improve heat exchange efficiency, increases the heat exchange amount.The utility model is provided with outer, interior deflector, is conducive to reduce " dead band " of smoke gas flow, further improves the shell-side fluid velocity flow profile.
It should be noted that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (10)
1. the heat exchange structure with deflector comprises a plurality of finned tubes, and described a plurality of finned tube close-packed arrays form the finned tube tube bank, it is characterized in that:
This heat exchange structure also comprises: a plurality of deflectors, and described deflector and finned tube tube bank are fitted, and the adjacent of compact arranged finned tube and the flow-guiding mouth of deflector (3) stagger mutually.
2. the heat exchange structure with deflector according to claim 1 is characterized in that: the fin straight tube tube bank that described finned tube tube bank is closely arranged for a plurality of fin straight tubes.
3. the heat exchange structure with deflector according to claim 2 is characterized in that: described fin straight tube tube bank arranged outside has outer deflector (1); Described outer deflector (1) is " V " type strip deflector with radian for the cross section, fits with the fin straight tube outside, and the flow-guiding mouth (3) of the adjacent of compact arranged fin straight tube and outer deflector (1) staggers mutually.
4. the heat exchange structure with deflector according to claim 2 is characterized in that: described fin straight tube tube bank inboard is provided with interior deflector (2); Described interior deflector (2) is " V " type strip deflector with radian for the cross section, fits with the fin straight tube outside, and the flow-guiding mouth (3) of the adjacent of compact arranged fin straight tube and interior deflector (2) staggers mutually.
5. the heat exchange structure with deflector according to claim 1 is characterized in that: the helical fin coil pipe tube bank that described finned tube tube bank is sticked to form for a plurality of helical fin coil pipe turned upside down.
6. the heat exchange structure with deflector according to claim 5 is characterized in that: the arranged outside of described helical fin coil pipe tube bank has outer deflector (1); Described outer deflector (1) is " V " type helical form deflector, fits with the helical fin coil pipe outside, and the flow-guiding mouth (3) of the adjacent of compact arranged helical fin coil pipe and outer deflector (1) staggers mutually.
7. the heat exchange structure with deflector according to claim 5, it is characterized in that: the inboard of described helical fin coil pipe is provided with interior deflector (2), described interior deflector (2) is for having the cylindric deflector of a plurality of holes and/or seam on it, fit with the helical fin coil pipe is inboard, the flow-guiding mouth (3) of the adjacent of a plurality of close-packed arrays helical fin coil pipes and interior deflector (2) staggers mutually.
8. the heat exchange structure with deflector according to claim 1 is characterized in that: described finned tube tube bank is a plurality of compact arranged fin coiled pipes tube banks.
9. the heat exchange structure with deflector according to claim 8 is characterized in that: described fin coiled pipe tube bank arranged outside has outer deflector (1); Described outer deflector (1) is " V " type strip deflector with radian for the cross section, fits with the fin coiled pipe outside, and the flow-guiding mouth (3) of the adjacent of compact arranged fin coiled pipe and outer deflector (1) staggers mutually.
10. the heat exchange structure with deflector according to claim 8, it is characterized in that: described fin coiled pipe tube bank inboard is provided with interior deflector (2), described interior deflector (2) is " V " type strip deflector with radian for the cross section, fit with the fin coiled pipe is inboard, the flow-guiding mouth (3) of the adjacent of a plurality of close-packed arrays fin coiled pipes and interior deflector (2) staggers mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204844532U CN202813773U (en) | 2012-09-21 | 2012-09-21 | Heat transfer structure provided with flow guide plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204844532U CN202813773U (en) | 2012-09-21 | 2012-09-21 | Heat transfer structure provided with flow guide plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202813773U true CN202813773U (en) | 2013-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204844532U Expired - Lifetime CN202813773U (en) | 2012-09-21 | 2012-09-21 | Heat transfer structure provided with flow guide plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202813773U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823353A (en) * | 2016-03-23 | 2016-08-03 | 东华大学 | High-efficiency condenser |
| CN108036346A (en) * | 2017-08-16 | 2018-05-15 | 山东天境环保科技有限公司 | Suitable for the energy saving micro- discharge method of cigarette vapour and device of boiler |
| CN108131977A (en) * | 2017-12-27 | 2018-06-08 | 青海艾能吉节能技术服务有限公司 | Efficient waste heat recycles heating stove |
| CN108225083A (en) * | 2017-12-27 | 2018-06-29 | 王文锋 | A kind of waste heat recovery furnace |
-
2012
- 2012-09-21 CN CN2012204844532U patent/CN202813773U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105823353A (en) * | 2016-03-23 | 2016-08-03 | 东华大学 | High-efficiency condenser |
| CN108036346A (en) * | 2017-08-16 | 2018-05-15 | 山东天境环保科技有限公司 | Suitable for the energy saving micro- discharge method of cigarette vapour and device of boiler |
| CN108036346B (en) * | 2017-08-16 | 2020-09-08 | 山东天境环保科技有限公司 | Smoke energy-saving micro-exhaust method and device suitable for boiler |
| CN108131977A (en) * | 2017-12-27 | 2018-06-08 | 青海艾能吉节能技术服务有限公司 | Efficient waste heat recycles heating stove |
| CN108225083A (en) * | 2017-12-27 | 2018-06-29 | 王文锋 | A kind of waste heat recovery furnace |
| CN108131977B (en) * | 2017-12-27 | 2021-11-26 | 青海艾能吉节能技术服务有限公司 | High-efficiency waste heat recovery heating stove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Xing Pu Road Industrial Park in Suzhou city of Jiangsu Province, No. 128 building D 215000 Patentee after: SUZHOU C&Q ENERGY TECH Co.,Ltd. Address before: 215021, Suzhou Industrial Park, Jiangsu Province, only 9 new road, only ting industrial square A District No. 1 Patentee before: Suzhou CQ Heat Exchanger Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130320 |
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| CX01 | Expiry of patent term |