CN203530218U - Heat transfer device of raw coke oven gas ascension pipe of coke oven - Google Patents
Heat transfer device of raw coke oven gas ascension pipe of coke oven Download PDFInfo
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- CN203530218U CN203530218U CN201320540679.4U CN201320540679U CN203530218U CN 203530218 U CN203530218 U CN 203530218U CN 201320540679 U CN201320540679 U CN 201320540679U CN 203530218 U CN203530218 U CN 203530218U
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The utility model discloses a heat transfer device of a raw coke oven gas ascension pipe of a coke oven, belonging to the technical field of recycle of raw coke oven gas waste heat. The heat transfer device of the raw coke oven gas ascension pipe of the coke oven comprises a smoke inlet flange arranged at the lower end of the heat transfer device of the ascension pipe and a smoke outlet flange arranged at the upper end of the heat transfer device of the ascension pipe. The device further comprises an inner barrel, a middle barrel and an outer barrel, wherein an inner interlayer is formed between the middle and outer barrels, demineralized water or nitrogen or air is introduced to the interlayer, and an outer interlayer which is a sealed heat isolating layer is formed between the middle and outer barrels. According to the device, not only is the heat transfer effect guaranteed and the waste heat of raw coke oven gas effectively, safely and reliably recovered, but also safe and economical operation of the coke oven and a heat exchanger is ensured under severe working conditions. Meanwhile, the problem that the prior heat exchangers in starting and stopping processes are not wide in adaptability is solved.
Description
Technical field
The utility model relates to a kind of heat-exchanger rig, more particularly, relates to a kind of raw coke over gas riser heat-exchanger rig.
Background technology
The high efficiente callback utilization of the residual heat resources that produce in coke making process flow process, is to set up resources conservation, the energy-conservation main direction in eco-friendly green coke-oven plant, is also one of main path reducing coke oven energy consumption.But, China utilizes support technology and equipment to lag behind to the exploitation of the excavation of secondary energy quality potentiality, value and low-quality residual heat and energy, in upcast, the waste heat of high temperature coke oven raw gas just fails effectively to utilize always, can only heat be wasted with cyclic ammonia water cooling.Still there is heat-transfer surface bonding tar, floss blockage problem by the processing medium water heat exchange in raw gas and chuck in someone, after heat-transfer surface damages, in chuck, processing medium water leaks into carbonizing chamber and affects coke production.Coal oven dithio-gas sensible heat accounts for 32% left and right of the heat expenditure of whole coke oven, and temperature, more than 650 degree, does not have the recycle device of mature and reliable to put into operation so far.At present, both at home and abroad coal chemical enterprise is done overtesting research to the recycling of waste heat of coke oven crude gas, also has many units once to carry out technological improvement and application, but the processing of the bad working environments for the processing of high temperature and while starting blowing out is used not satisfactory.
As Chinese Patent Application No. 200710158683.3, the application day for announcing is on June 11st, 2008, invention and created name is: ascending pipe heat-exchanger for coke oven, this application case relates to a kind of ascending pipe heat-exchanger for coke oven, this device comprises inner sleeve, outer tube, spiral plate stiffening web, stiffening web, bridge tube flange, upper flange, base plate, thrust-augmenting nozzle, inlet pipe, outlet pipe, inwall at inner sleeve is lined with refractory materials lining brick, this application case has solved the easy condensation of tar thing in raw gas to a certain extent, the problem of the easy blockage phenomenon of upcast heat-exchanger rig inwall, but its weak point is: this application case is when processing hot environment and starting blowing out, effect is unsatisfactory, easily because of the impact of high temperature, there is the phenomenon of premature aging.
And for example Chinese Patent Application No. 201210457921.1, the application day for announcing is on January 30th, 2013, invention and created name is: for coke oven coke oven uprising tube raw gas heat recovery heat exchanger, this application case relates to a kind of for coke oven coke oven uprising tube raw gas heat recovery heat exchanger, by inside and outside sleeve pipe, formed, between inside and outside sleeve pipe, be provided with multiply spiral return flow line, the header of confluxing is respectively established at inside and outside sleeve pipe two ends.This application case is compared with the coke oven coke oven uprising tube raw gas heat recovery heat exchanger of other form, be applicable to coking process raw gas working conditions change, strengthened to a certain extent heat transfer effect, solved the problem of tube wall coking, but its weak point is: this application case is mainly applicable to gas as the coke oven coke oven uprising tube interchanger of heat-eliminating medium, and when using de-mineralized water as heat-eliminating medium, effect is unsatisfactory, and the heat of this application case is easily outer loose, and environment is brought to baneful influence.
In addition, Chinese Patent Application No. 201210370657.8, Shen Qing Publication day is on December 26th, 2012, invention and created name is: waste heat of coke oven crude gas utilizes method and apparatus, this application case relates to a kind of biomass stove flue gas heat recovery method and device, the inside and outside both sides of intermediate cylinder are respectively equipped with inner core and urceolus, chuck in forming between inner core and intermediate cylinder, between urceolus and intermediate cylinder, form external jacket, interior chuck and external jacket share a middle cylindrical shell, the axial height of interior chuck is greater than the axial height of external jacket, and interior chuck blocks external jacket completely; Interior chuck falling heat-transfer medium gas phase or liquid phase material, external jacket is full of processing medium liquid or gas, high temperature raw gas directly with interior jacket for heat exchange, heat is given the processing medium in external jacket again by the heat-conducting medium of interior chuck, this application case has also solved the problem of the easy coking of upcast and obstruction to a certain extent, but its weak point is: this application case is through twice heat exchange, and calorific loss is large, and the heat of this application case is also easily outer loose, affects outside atmosphere.
Summary of the invention
1. the technical problem that utility model will solve
The purpose of this utility model is to overcome the easy coking and blocking of existing raw coke over gas riser heat-exchanger rig, larger to external environment influence, and processing and interchanger for high temperature use undesirable deficiency in startup and stopped process, a kind of raw coke over gas riser heat-exchanger rig is provided, adopt the technical solution of the utility model, both guaranteed heat transfer effect, effectively, safety, reliable recovery raw gas waste heat, guaranteed again under bad working environments, the safety and economic operation of coke oven and interchanger, solved the adaptability wideless problem of interchanger in the past in startup and stopped process simultaneously, the equipment that guaranteed (1400 ℃) under excessive temperature can normally move safely.
2. technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
A kind of raw coke over gas riser heat-exchanger rig of the present utility model, comprise the gas approach flange that is arranged at upcast heat-exchanger rig lower end and the exhanst gas outlet flange that is arranged at upcast heat-exchanger rig upper end, also comprise inner core, middle cylinder and urceolus, between described inner core and middle cylinder, form intraformational bed, in described intraformational bed, pass into de-mineralized water or nitrogen or air, between described middle cylinder and urceolus, form outside sandwich, described outside sandwich is the thermofin of sealing.
As further improvement of the utility model, also comprise into water flange and water outlet mouthpiece flange, described water inlet flange is arranged at the bottom of upcast heat-exchanger rig, and by water inlet pipe, be connected with intraformational bed, described water inlet pipe is provided with annular inlet distribution end with the intraformational bed place of being connected; Described water outlet mouthpiece flange is arranged at the top of upcast heat-exchanger rig, and is connected with intraformational bed by rising pipe, and what described rising pipe and the intraformational bed place of being connected were provided with annular goes out water distribution end, and described water inlet pipe and rising pipe are all through outside sandwich.
As further improvement of the utility model, on the inwall of described inner core, be provided with heat-resistant, wear-resistant material.
As further improvement of the utility model, described heat-resistant, wear-resistant material is steel alloy or refractory brick or refractory.
As further improvement of the utility model, on the outer wall of described middle cylinder, be provided with heat insulating coat.
As further improvement of the utility model, also comprise expansion joint, described expansion joint is arranged at the middle portion of upcast heat-exchanger rig.
As further improvement of the utility model, the material of described inner core, middle cylinder and urceolus is high-temp corrosion-resisting alloy or casting alloy.
3. beneficial effect
The technical scheme that adopts the utility model to provide, compares with existing known technology, has following unusual effect:
(1) a kind of raw coke over gas riser heat-exchanger rig of the present utility model, between its inner core and middle cylinder, form intraformational bed, in intraformational bed, pass into de-mineralized water or nitrogen or air, between middle cylinder and urceolus, form outside sandwich, outside sandwich is the thermofin of sealing, inner core is similar to tubulation and plate-type heat exchanger, both played good heat exchange effect, there is again good heatproof effect, urceolus plays good thermal insulation function, reduced the loss of heat, prevented that heat from spreading in outside air, avoided the pollution of environment;
(2) a kind of raw coke over gas riser heat-exchanger rig of the present utility model, its water inlet flange is arranged at the bottom of upcast heat-exchanger rig, and be connected with intraformational bed by water inlet pipe, water inlet pipe is provided with annular inlet distribution end with the intraformational bed place of being connected, after water is entered, can be uniformly distributed, be convenient to circulation and heat exchange; Water outlet mouthpiece flange is arranged at the top of upcast heat-exchanger rig, and be connected with intraformational bed by rising pipe, what rising pipe and the intraformational bed place of being connected were provided with annular goes out water distribution end, and hot water or water vapour after heat exchange can evenly be collected, and is convenient to concentrate discharge and utilizes;
(3) a kind of raw coke over gas riser heat-exchanger rig of the present utility model, is provided with heat-resistant, wear-resistant material on the inwall of its inner core, prevents on the one hand the high temperature corrosion of flue gas to device, has guaranteed on the other hand good heat transfer effect;
(4) a kind of raw coke over gas riser heat-exchanger rig of the present utility model, wherein on the outer wall of cylinder, be provided with heat insulating coat, inner heat is isolated from the outside, on the one hand outside temperature is effectively reduced, protection of the environment, make on the other hand heat outer loose, guarantee that inside carries out sufficient heat exchange;
(5) a kind of raw coke over gas riser heat-exchanger rig of the present utility model, intermediate portion is provided with expansion joint, and the distortion of effectively having avoided device to cause because expanding with heat and contract with cold has prevented the leakage of device.
Accompanying drawing explanation
Fig. 1 is the main TV structure schematic diagram of partly cuing open of a kind of raw coke over gas riser heat-exchanger rig of the present utility model;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the plan structure schematic diagram of a kind of raw coke over gas riser heat-exchanger rig of the present utility model.
Label declaration in schematic diagram:
1, gas approach flange; 2, heat-resistant, wear-resistant material; 3, inlet distribution end; 4, inner core; 5, middle cylinder; 6, urceolus; 7, expansion joint; 8, go out water distribution end; 9, water outlet mouthpiece flange; 10, exhanst gas outlet flange; 11, water inlet flange.
Embodiment
For further understanding content of the present utility model, by reference to the accompanying drawings the utility model is described in detail.
In conjunction with Fig. 1, Fig. 2 and Fig. 3, a kind of raw coke over gas riser heat-exchanger rig of the present utility model, comprise gas approach flange 1, exhanst gas outlet flange 10, inner core 4, middle cylinder 5, urceolus 6, expansion joint 7, water inlet flange 11 and water outlet mouthpiece flange 9, gas approach flange 1 is arranged at the lower end of upcast heat-exchanger rig, exhanst gas outlet flange 10 is arranged at the upper end of upcast heat-exchanger rig, between inner core 4 and middle cylinder 5, form intraformational bed, in intraformational bed, pass into de-mineralized water or nitrogen or air, between middle cylinder 5 and urceolus 6, form outside sandwich, outside sandwich is the thermofin of sealing, on the inwall of inner core 4, be provided with heat-resistant, wear-resistant material 2, on the outer wall of middle cylinder 5, be provided with heat insulating coat.Water inlet flange 11 is arranged at the bottom of upcast heat-exchanger rig, and is connected with intraformational bed by water inlet pipe, and water inlet pipe is provided with annular inlet distribution end 3 with the intraformational bed place of being connected; Water outlet mouthpiece flange 9 is arranged at the top of upcast heat-exchanger rig, and is connected with intraformational bed by rising pipe, and what rising pipe and the intraformational bed place of being connected were provided with annular goes out water distribution end 8, and water inlet pipe and rising pipe are all through outside sandwich.Expansion joint 7 is arranged at the middle portion of upcast heat-exchanger rig.
Below in conjunction with embodiment, the utility model will be further described.
Embodiment 1
A kind of raw coke over gas riser heat-exchanger rig of the present embodiment, comprise gas approach flange 1, exhanst gas outlet flange 10, inner core 4, middle cylinder 5, urceolus 6, expansion joint 7, water inlet flange 11 and water outlet mouthpiece flange 9, gas approach flange 1 is arranged at the lower end of upcast heat-exchanger rig, exhanst gas outlet flange 10 is arranged at the upper end of upcast heat-exchanger rig, utilize flue gas flowing from bottom to top, in upcast heat-exchanger rig, complete thermal exchange, guaranteed good heat transfer effect.Between inner core 4 and middle cylinder 5, form intraformational bed, in intraformational bed, pass into de-mineralized water, between middle cylinder 5 and urceolus 6, form outside sandwich, outside sandwich is the thermofin of sealing, inner core 4 is similar to tubulation and plate-type heat exchanger, compare with traditional tubulation and plate-type heat exchanger, its small scale, diverse in function, transporting something containerized row and heatproof are in one, both played good heat exchange effect, have again good heatproof effect, urceolus 6 plays good thermal insulation function, has reduced the loss of heat, prevent that heat from spreading in outside air, avoided the pollution of environment.On the inwall of inner core 4, be provided with heat-resistant, wear-resistant material 2, this heat-resistant, wear-resistant material 2 is steel alloy, prevent on the one hand the high temperature corrosion of flue gas to device, prevent that premature aging and coking phenomenon from appearring in inner core 4, can make device (1400 ℃) safe and stable operation under excessive temperature; Guaranteed on the other hand good heat transfer effect, after what heat exchange is processed, the heat of raw gas is reclaimed by de-mineralized water, enters after producing steam in drum and uses, and has saved a large amount of mark coals.On the outer wall of middle cylinder 5, be provided with heat insulating coat, inner heat is isolated from the outside, on the one hand outside temperature is effectively reduced, protection of the environment; Make on the other hand heat outer loose, guarantee that inside carries out sufficient heat exchange.The material of inner core 4, middle cylinder 5 and urceolus 6 is high-temp corrosion-resisting alloy.
A kind of raw coke over gas riser heat-exchanger rig of the present embodiment, water inlet flange 11 is arranged at the bottom of upcast heat-exchanger rig, and be connected with intraformational bed by water inlet pipe, water inlet pipe is provided with annular inlet distribution end 3 with the intraformational bed place of being connected, after water is entered, can be uniformly distributed, be convenient to circulation and heat exchange; Water outlet mouthpiece flange 9 is arranged at the top of upcast heat-exchanger rig, and be connected with intraformational bed by rising pipe, what rising pipe and the intraformational bed place of being connected were provided with annular goes out water distribution end 8, water inlet pipe and rising pipe are all through outside sandwich, water or water vapour after heat exchange can evenly be collected, be convenient to concentrate get rid of and utilize.Inlet distribution end 3 and the ingehious design that goes out water distribution end 8, guaranteed that the Inlet and outlet water of device remains constant, avoided occurring the phenomenon of bias current.Expansion joint 7 is arranged at the middle portion of upcast heat-exchanger rig, and the distortion of effectively having avoided device to cause because expanding with heat and contract with cold has prevented the leakage of device.
The basic structure of a kind of raw coke over gas riser heat-exchanger rig of the present embodiment is with embodiment 1, and difference is: between the inner core 4 in the present embodiment and middle cylinder 5, form intraformational bed, pass into nitrogen, as heat exchange medium in intraformational bed; The heat-resistant, wear-resistant material 2 arranging on the inwall of inner core 4 is refractory brick, and the material of inner core 4, middle cylinder 5 and urceolus 6 is casting alloy.
Embodiment 3
The basic structure of a kind of raw coke over gas riser heat-exchanger rig of the present embodiment is with embodiment 1, and difference is: between the inner core 4 in the present embodiment and middle cylinder 5, form intraformational bed, pass into air, as heat exchange medium in intraformational bed; The heat-resistant, wear-resistant material 2 arranging on the inwall of inner core 4 is refractory, and the material of inner core 4, middle cylinder 5 and urceolus 6 is casting alloy.
A kind of raw coke over gas riser heat-exchanger rig of the present utility model, drawing in the experience and lessons situation of each side, overcomes various disadvantages, can be effectively, safety, reliable recovery raw gas waste heat.For understanding better content of the present utility model, now provide principle of work of the present utility model: utilize raw gas flowing from bottom to top, the direction of the heat transferring medium in the utility model is consistent with the flow direction of raw gas, heat transferring medium is uniformly distributed by inlet distribution end 3, carry out equably heat exchange, there will not be Biased flow phenomenon, the heat transferring medium after heat exchange, by going out evenly collecting of water distribution end 8, utilizes again.On inwall due to inner core 4, be provided with heat-resistant, wear-resistant material 2, on the outer wall of middle cylinder 5, be provided with heat insulating coat, the thermofin that the outside sandwich forming between middle cylinder 5 and urceolus 6 is sealing, heat transferring medium only carries out heat exchange in intraformational bed, inner core 4 keeps higher temperature, avoid the melt substance in flue gas to meet cold condensing on inner core 4 barrels, occurred coking phenomenon, stopped up upcast heat-exchanger rig.
What deserves to be explained is, a kind of raw coke over gas riser heat-exchanger rig of the present utility model has interchangeability, position and the size of its gas approach flange 1, exhanst gas outlet flange 10, water inlet flange 11 and water outlet mouthpiece flange 9 all remain unchanged, and can be used for replacing original coke oven coke oven uprising tube.A kind of raw coke over gas riser heat-exchanger rig of the present utility model, both guaranteed heat transfer effect, effectively, safety, reliable recovery raw gas waste heat, guaranteed again under bad working environments, the safety and economic operation of coke oven and interchanger, solved the adaptability wideless problem of interchanger in the past in startup and stopped process, the equipment that guaranteed (1400 ℃) under excessive temperature can normally move safely simultaneously.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in accompanying drawing is also one of embodiment of the present utility model, and actual structure is not limited to this.So, if those of ordinary skill in the art is enlightened by it, in the situation that not departing from the utility model creation aim, without the creationary frame mode similar to this technical scheme and the embodiment of designing, all should belong to protection domain of the present utility model.
Claims (7)
1. a raw coke over gas riser heat-exchanger rig, comprise the gas approach flange (1) that is arranged at upcast heat-exchanger rig lower end and the exhanst gas outlet flange (10) that is arranged at upcast heat-exchanger rig upper end, it is characterized in that: also comprise inner core (4), middle cylinder (5) and urceolus (6), between described inner core (4) and middle cylinder (5), form intraformational bed, in described intraformational bed, pass into de-mineralized water or nitrogen or air, between described middle cylinder (5) and urceolus (6), form outside sandwich, described outside sandwich is the thermofin of sealing.
2. a kind of raw coke over gas riser heat-exchanger rig according to claim 1, it is characterized in that: also comprise into water flange (11) and water outlet mouthpiece flange (9), described water inlet flange (11) is arranged at the bottom of upcast heat-exchanger rig, and by water inlet pipe, be connected with intraformational bed, described water inlet pipe is provided with annular inlet distribution end (3) with the intraformational bed place of being connected; Described water outlet mouthpiece flange (9) is arranged at the top of upcast heat-exchanger rig, and be connected with intraformational bed by rising pipe, what described rising pipe and the intraformational bed place of being connected were provided with annular goes out water distribution end (8), and described water inlet pipe and rising pipe are all through outside sandwich.
3. a kind of raw coke over gas riser heat-exchanger rig according to claim 1 and 2, is characterized in that: on the inwall of described inner core (4), be provided with heat-resistant, wear-resistant material (2).
4. a kind of raw coke over gas riser heat-exchanger rig according to claim 3, is characterized in that: described heat-resistant, wear-resistant material (2) is steel alloy or refractory brick or refractory.
5. a kind of raw coke over gas riser heat-exchanger rig according to claim 4, is characterized in that: on the outer wall of described middle cylinder (5), be provided with heat insulating coat.
6. a kind of raw coke over gas riser heat-exchanger rig according to claim 5, is characterized in that: also comprise expansion joint (7), described expansion joint (7) is arranged at the middle portion of upcast heat-exchanger rig.
7. a kind of raw coke over gas riser heat-exchanger rig according to claim 6, is characterized in that: the material of described inner core (4), middle cylinder (5) and urceolus (6) is high-temp corrosion-resisting alloy or casting alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320540679.4U CN203530218U (en) | 2013-08-30 | 2013-08-30 | Heat transfer device of raw coke oven gas ascension pipe of coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320540679.4U CN203530218U (en) | 2013-08-30 | 2013-08-30 | Heat transfer device of raw coke oven gas ascension pipe of coke oven |
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| CN203530218U true CN203530218U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320540679.4U Withdrawn - After Issue CN203530218U (en) | 2013-08-30 | 2013-08-30 | Heat transfer device of raw coke oven gas ascension pipe of coke oven |
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| CN (1) | CN203530218U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436272A (en) * | 2013-08-30 | 2013-12-11 | 常州江南电力节能科技有限公司 | Ascending pipe heat exchange device for raw gas of coke oven |
| CN104073268A (en) * | 2014-07-11 | 2014-10-01 | 上海理工大学 | Coking-preventing raw coke oven gas waste heat recycling device for heat-conduction oil coke oven |
| CN104694139A (en) * | 2015-02-13 | 2015-06-10 | 常州江南冶金科技有限公司 | Coke oven raw gas heat exchanger with flow guide device |
| CN105273728A (en) * | 2015-10-22 | 2016-01-27 | 辽宁中弘信冶金技术有限公司 | Raw gas riser pipe heat exchange device for coking furnace |
| CN106323050A (en) * | 2016-08-31 | 2017-01-11 | 张家港市华扬冶金机械有限公司 | Crude gas waste heat recovery and heat exchange device of coke oven |
| CN106979531A (en) * | 2017-04-28 | 2017-07-25 | 嘉兴市桐能环保科技股份有限公司 | A kind of superconduction air to air heat exchanger and residual neat recovering system |
-
2013
- 2013-08-30 CN CN201320540679.4U patent/CN203530218U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103436272A (en) * | 2013-08-30 | 2013-12-11 | 常州江南电力节能科技有限公司 | Ascending pipe heat exchange device for raw gas of coke oven |
| CN103436272B (en) * | 2013-08-30 | 2015-01-07 | 江苏龙冶节能科技有限公司 | Ascending pipe heat exchange device for raw gas of coke oven |
| CN104073268A (en) * | 2014-07-11 | 2014-10-01 | 上海理工大学 | Coking-preventing raw coke oven gas waste heat recycling device for heat-conduction oil coke oven |
| CN104694139A (en) * | 2015-02-13 | 2015-06-10 | 常州江南冶金科技有限公司 | Coke oven raw gas heat exchanger with flow guide device |
| CN105273728A (en) * | 2015-10-22 | 2016-01-27 | 辽宁中弘信冶金技术有限公司 | Raw gas riser pipe heat exchange device for coking furnace |
| CN106323050A (en) * | 2016-08-31 | 2017-01-11 | 张家港市华扬冶金机械有限公司 | Crude gas waste heat recovery and heat exchange device of coke oven |
| CN106979531A (en) * | 2017-04-28 | 2017-07-25 | 嘉兴市桐能环保科技股份有限公司 | A kind of superconduction air to air heat exchanger and residual neat recovering system |
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Inventor after: Yi Xiaodong Inventor after: Gao Zhefa Inventor after: Li Deqing Inventor after: Meng Xiaodong Inventor before: Yi Xiaodong Inventor before: Gao Zhefa Inventor before: Han Pei Inventor before: Li Deqing Inventor before: Meng Xiaodong |
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Free format text: CORRECT: INVENTOR; FROM: YI XIAODONG GAO ZHEFA HAN PEI LI DEQING MENG XIAODONG TO: YI XIAODONG GAO ZHEFA LI DEQING MENG XIAODONG |
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Owner name: CHANGZHOU LONGYI ENERGY SAVING TECHNOLOGY CO., LTD Free format text: FORMER OWNER: CHANGZHOU JIANGNAN ELECTRIC POWER ENERGY SAVING SCIENCE + TECHNOLOGY CO., LTD. Effective date: 20140519 |
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Effective date of registration: 20140519 Address after: 213000, No. 178, ERON South Road, bell tower Economic Zone, bell tower, Jiangsu, Changzhou Patentee after: Changzhou Dragon Energy Saving Technology Co., Ltd. Address before: 213000, Jiangsu Changzhou bell tower Zone Economic Development Zone, ERON South Road, No. 213 bell tower, hi tech Innovation Service Center No. 8933 Patentee before: Changzhou Jiangnan Electric Power Energy Saving Science & Technology Co., Ltd. |
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Owner name: JIANGSU LONGYE ENERGY SAVING TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: CHANGZHOU LONGYI ENERGY SAVING TECHNOLOGY CO., LTD. Effective date: 20141010 |
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Effective date of registration: 20141010 Address after: 213000, 5A08, No. 178, ERON South Road, Changzhou bell tower Economic Zone, Changzhou, Jiangsu Patentee after: JIANGSU LONGYE ENERGY-SAVING TECHNOLOGY CO., LTD. Address before: 213000, No. 178, ERON South Road, bell tower Economic Zone, bell tower, Jiangsu, Changzhou Patentee before: Changzhou Dragon Energy Saving Technology Co., Ltd. |
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Granted publication date: 20140409 Effective date of abandoning: 20150107 |
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