CN205227802U - High -efficient tubular equiflux heater - Google Patents
High -efficient tubular equiflux heater Download PDFInfo
- Publication number
- CN205227802U CN205227802U CN201520869189.8U CN201520869189U CN205227802U CN 205227802 U CN205227802 U CN 205227802U CN 201520869189 U CN201520869189 U CN 201520869189U CN 205227802 U CN205227802 U CN 205227802U
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- Prior art keywords
- combustion chamber
- heater
- chamber
- heated medium
- heat
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- Expired - Fee Related
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- 238000002485 combustion reaction Methods 0.000 claims abstract description 143
- 239000012530 fluid Substances 0.000 claims description 11
- 239000000779 smoke Substances 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 19
- 230000005855 radiation Effects 0.000 description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 8
- 239000003546 flue gas Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 7
- 239000002918 waste heat Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 238000005338 heat storage Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005504 petroleum refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model belongs to the technical field of tube heating furnace, a high -efficient tubular equiflux heater is disclosed for solve the inhomogeneous problem of dielectric heating that current tube heating furnace exists. The utility model discloses a tubular furnace body, internal combustion chamber and the heat -exchanging chamber of being equipped with of tube -like stove, the one end of tubular furnace body is the combustion chamber entry with the combustion chamber intercommunication, and the other end of tubular furnace body be the exhaust port with the combustion chamber intercommunication, is equipped with the heated medium export on the tubular furnace body that is close to the combustion chamber entry, is equipped with the heated medium and is entering the mouth on being close to the tubular furnace body of exhaust port, heat -exchanging chamber leads to with heated medium entry and the interconnection of heated medium export homogeneous phase, the combustion chamber includes combustion chamber and inner combustion chamber outside the combustion chamber, and outer combustion chamber cover is established on the inner wall of tubular furnace body, and the inner combustion chamber feeds through with the bottom of outer combustion chamber each other, the top and the exhaust port intercommunication of inner combustion chamber and outer combustion chamber, form the heat -exchanging chamber who is used for the medium to be heated between inner combustion chamber and the outer combustion chamber.
Description
Technical field
The utility model belongs to tubular heater technical field, specifically discloses a kind of efficient tube type equiflux heater.
Background technology
The Furnace used in the industry such as tubular heater is petroleum refining, petrochemical industry, Coal Chemical Industry, tar production, Crude Oil Transportation, heated material is gas or liquid at Bottomhole pressure medium; And be all inflammable and explosive material, operating condition is harsh, simultaneously long-term operation hitless operation, mode of heating is directly by fire.The exhaust gas temperature of tubular heater can be reduced to about 100 DEG C, realize the partial condensation containing sour water steam in flue gas, and while recovered flue gas low temperature sensible heat, energy recovery section is containing the latent heat of vaporization of sour water steam, further raising thermal efficiency of heating furnace, economize energy.
Also more about the document of tubular heater in prior art, such as application number be 200910026382.4 patent of invention disclose a kind of tubular heater, comprise body of heater, boiler tube and burner, boiler tube is arranged in body of heater, burner is arranged in body of heater, be provided with radiant body between burner in body of heater and boiler tube, this radiant body forms radiation lumen in body of heater, and radiation lumen is positioned at the central area of body of heater; Burner and radiation lumen are interconnected; Radiation lumen is square box shape or circle; Radiation lumen is single chamber or multi-cavity; Be provided with radiant body between boiler tube and body of heater, radiant body and body of heater form radiation exocoel, and this radiation exocoel is connected with radiation lumen; When the burner of heating furnace is tipburn, the end burns or side is burnt, burner is connected with radiation exocoel; Radiant body is ceramic heat conductor or high alloy heat carrier, and the body wall of radiant body offers radial or oblique hole; Boiler tube is snakelike or helical form boiler tube, the convex radiant body being communicated with radiant body or stretching between pipe is provided with outward between boiler tube adjacent tubular segments, the convex radiant body being communicated with radiant body or stretching in outward between pipe, connection radiant body or the convex radiant body stretched in outward between pipe are the honeycomb ceramics or the entity heat carrier that have through hole, and connection radiant body or the convex radiant body stretched in outward between pipe are connected or are communicated with the radiation lumen of boiler tube both sides with radiation exocoel by through hole; The heat storage of the outlet of body of heater and flue gas waste heat recovery apparatus or heat storage type combustion is connected and communicates, the heat storage connection of flue gas waste heat recovery apparatus or heat storage type combustion communicates, flue gas waste heat recovery apparatus is connected with chimney and communicates, and the combustion air line that the preheated air that flue gas waste heat recovery apparatus produces passes into burner by pipeline connects; Exhanst gas outlet flows into flue and enters between flue gas waste heat recovery apparatus, is added with flue gas material convection recuperator.
Application number be 200920158985.5 utility model patent disclose a kind of tubular heater, comprise horizontal body of heater, heat-proof device and heat-exchanger rig is provided with in horizontal body of heater, heat-proof device is made up of monolithc lining and flame-retardant fibre board, monolithc lining is closely connected in the inwall of horizontal body of heater, and flame-retardant fibre board is fixed on the surface of monolithc lining; Heat-exchanger rig is made up of boiler tube, and boiler tube is located at the inner side of flame-retardant fibre board, and the two ends of boiler tube are stretched out in the outside of horizontal body of heater; Horizontal body of heater is provided with explosion-protection equipment; Horizontal body of heater is provided with connecting hole and hanger; Bracing or strutting arrangement is provided with below horizontal body of heater.
Application number be 201110459125.7 patent of invention disclose a kind of waste heat recovery system of pipe heater, comprise air blast, front preheating process device and air preheater, front preheating process device is arranged at import department or the exit of air blast, the outlet of front preheating process device is connected with the import of air preheater, cold air is after air blast, enter front preheating process device, discharge after preposition preheater heating, finally enter air preheater; Front preheating process device is finned tube exchanger or tube bundle heat exchanger; Thermal source in front preheating process device is hot water or steam.
But, although existing tube heater is provided with flow-disturbing heat exchanger tube between combustion chamber and Heat Room, but flow-disturbing heat exchanger tube is independent be arranged on a certain position or a certain region, but very fast owing to passing into the medium speed of service in Heat Room, gas or liquid medium therefore can be caused to be heated uneven problem.
Utility model content
The uneven problem of dielectric heating that the utility model exists to solve existing tubular heater, and provide a kind of efficient tube type equiflux heater, the medium of hot Heat Room can be heated evenly, improves the effect of dielectric heating.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of efficient tube type equiflux heater, comprise tubular type body of heater, it is characterized in that, combustion chamber and heat-exchanging chamber is provided with in described tubular type body of heater, one end of described tubular type body of heater is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater is the exhaust opening with combustion chamber, the tubular type body of heater near entry of combustion chamber is provided with heated medium outlet, the tubular type body of heater near exhaust opening is provided with heated medium entrance; Described heat-exchanging chamber and heated medium entrance export with heated medium and are communicated with mutually; Described combustion chamber comprises combustion chamber exterior combustion chamber and inner combustion chamber, and described exterior combustion chamber is set on the inwall of tubular type body of heater, and the bottom of described inner combustion chamber and exterior combustion chamber is interconnected, and described inner combustion chamber is communicated with exhaust opening with the top of exterior combustion chamber; The heat-exchanging chamber being used for medium and being heated is formed between described inner combustion chamber and exterior combustion chamber; The inwall of described exterior combustion chamber is provided with the first spiral deflector, and the outer wall of described inner combustion chamber is provided with second spiral deflector contrary with the first spiral deflector hand of spiral; Described second spiral deflector comprises housing, forms the vapor chamber of vacuum, the inwall of described vapor chamber is equipped with liquid-sucking core, is filled with hydraulic fluid in described vapor chamber in described housing.
Described housing is made up of 4Cr5MoSiV steel, and described hydraulic fluid is water.
Described heat-exchanging chamber is divided into the high-temperature hot switch room and Low Temperature Thermal switch room that are interconnected, and described Low Temperature Thermal switch room is communicated with heated medium entrance, described high-temperature hot switch room and heated medium outlet.
Described heated medium entrance is tangentially arranged on tubular type body of heater.
The width of the first neighbouring spiral deflector is not identical.
Described exhaust opening is connected with smoke exhaust pipe, is connected with resilient seal device between described exhaust opening and smoke exhaust pipe.
Compared with prior art, the utility model has following beneficial effect:
Efficient tube type equiflux heater of the present utility model, by combustion chamber is divided into inner combustion chamber and exterior combustion chamber, the heat-exchanging chamber that heated medium can be formed in inner combustion chamber and exterior combustion chamber heats, compare existing heated on one side, the both sides of heated medium can both be heated, thus improve the uniformity of heating, improve the efficiency of heating surface.
The utility model is by arranging the first spiral stream guidance and the second spiral deflector simultaneously, and the hand of spiral of the first spiral deflector and the second spiral deflector is contrary, therefore medium meeting ceaselessly flow-disturbing in the process of heat exchange indoor moveable, thus the medium of each position can both be heated, improve the uniformity of heating further.
It is high that second spiral deflector of the present utility model has heat transference efficiency, the feature be heated evenly, and improves the uniformity of dielectric heating.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the second spiral deflector of the present utility model;
Mark in figure: 1, tubular type body of heater, 2, exterior combustion chamber, 3, heat-exchanging chamber, 4, connecting pipe, 5, inner combustion chamber, 6, heated medium entrance, 7, heated medium outlet, 8, smoke exhaust pipe, 9, the second spiral deflector, the 10, first spiral deflector, 11, vapor chamber, 12, liquid-sucking core.
Detailed description of the invention
Below in conjunction with embodiment, the utility model will be further described, and described embodiment is only the utility model part embodiment, is not whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art, not making other embodiments used obtained under creative work prerequisite, belongs to protection domain of the present utility model.
By reference to the accompanying drawings, efficient tube type equiflux heater of the present utility model, comprise tubular type body of heater 1, combustion chamber and heat-exchanging chamber 3 is provided with in described tubular type body of heater 1, one end of described tubular type body of heater 1 is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater 1 is the exhaust opening with combustion chamber, the tubular type body of heater 1 near entry of combustion chamber is provided with heated medium outlet 7, the tubular type body of heater 1 near exhaust opening is provided with heated medium entrance 6; Described heat-exchanging chamber 3 exports 7 with heated medium entrance 6 and heated medium and is communicated with mutually; Described combustion chamber comprises combustion chamber exterior combustion chamber 2 and inner combustion chamber 5, described exterior combustion chamber 2 is set on the inwall of tubular type body of heater 1, described inner combustion chamber 5 is interconnected with the bottom of exterior combustion chamber 2, and described inner combustion chamber 5 is communicated with exhaust opening with the top of exterior combustion chamber 2; The heat-exchanging chamber 3 being used for medium and being heated is formed between described inner combustion chamber 5 and exterior combustion chamber 2; The inwall of described exterior combustion chamber 2 is provided with the first spiral deflector 10, and the outer wall of described inner combustion chamber 5 is provided with second spiral deflector 9 contrary with first spiral deflector 10 hand of spiral; Described second spiral deflector 9 comprises housing, forms the vapor chamber 11 of vacuum, the inwall of described vapor chamber 11 is equipped with liquid-sucking core 12, is filled with hydraulic fluid in described vapor chamber 11 in described housing.
Efficient tube type heating furnace of the present utility model, by combustion chamber is divided into inner combustion chamber and exterior combustion chamber, the heat-exchanging chamber that heated medium can be formed in inner combustion chamber and exterior combustion chamber heats, compare existing heated on one side, (outside of heated medium and exterior combustion chamber carry out heat exchange in the both sides of heated medium, with inner combustion chamber's heat exchange inside Shou Re Jie Zhi Alto) can both heat, thus improve the uniformity of heating, improve the efficiency of heating surface.
The utility model is by arranging the first spiral stream guidance and the second spiral deflector simultaneously, and the hand of spiral of the first spiral deflector and the second spiral deflector is contrary, therefore medium meeting ceaselessly flow-disturbing in the process of heat exchange indoor moveable, thus the medium of each position can both be heated, improve the uniformity of heating further.
It is high that second spiral deflector of the present utility model has heat transference efficiency, the feature be heated evenly, and improves the uniformity of dielectric heating.
The housing of the second spiral stream guidance of the present utility model is made up of 4Cr5MoSiV steel, and described hydraulic fluid is water.And liquid-sucking core is copperly roll silk screen liquid-sucking core, and the copper silk screen liquid-sucking core that rolls belongs to prior art products, and those skilled in the art understands and understands, and does not repeat them here.
As a kind of preferred mode of the utility model, described heat-exchanging chamber is divided into the high-temperature hot switch room and Low Temperature Thermal switch room that are interconnected, and described Low Temperature Thermal switch room is communicated with heated medium entrance, described high-temperature hot switch room and heated medium outlet.
Heated medium entrance 6 of the present utility model is tangentially arranged on tubular type body of heater 1, makes the medium entering heat-exchanging chamber to form eddy current.
The width of the first neighbouring spiral deflector of the present utility model is not identical.
As a kind of preferred mode of the utility model, described exhaust opening is connected with smoke exhaust pipe 8, is connected with resilient seal device between described exhaust opening and smoke exhaust pipe 8, and resilient seal device belongs to prior art products, those skilled in the art understands and understands, and does not repeat them here.Can be ensured the normal operation of product by resilient seal device, because the temperature of combustion chamber is higher, therefore the expanded by heating of material is comparatively large, therefore solves this problem by resilient seal device.
Embodiment one
Efficient tube type equiflux heater of the present utility model, comprise tubular type body of heater, combustion chamber and heat-exchanging chamber is provided with in described tubular type body of heater, one end of described tubular type body of heater is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater is the exhaust opening with combustion chamber, tubular type body of heater near entry of combustion chamber is provided with heated medium outlet, the tubular type body of heater near exhaust opening is provided with heated medium entrance; Described heat-exchanging chamber and heated medium entrance export with heated medium and are communicated with mutually; Described combustion chamber comprises combustion chamber exterior combustion chamber and inner combustion chamber, and described exterior combustion chamber is set on the inwall of tubular type body of heater, and the bottom of described inner combustion chamber and exterior combustion chamber is interconnected, and described inner combustion chamber is communicated with exhaust opening with the top of exterior combustion chamber; The heat-exchanging chamber being used for medium and being heated is formed between described inner combustion chamber and exterior combustion chamber; The inwall of described exterior combustion chamber is provided with the first spiral deflector, and the outer wall of described inner combustion chamber is provided with second spiral deflector contrary with the first spiral deflector hand of spiral; Described second spiral deflector comprises housing, forms the vapor chamber of vacuum, the inwall of described vapor chamber is equipped with liquid-sucking core, is filled with hydraulic fluid in described vapor chamber in described housing.
Embodiment two
Efficient tube type equiflux heater of the present utility model, comprise tubular type body of heater, combustion chamber and heat-exchanging chamber is provided with in described tubular type body of heater, one end of described tubular type body of heater is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater is the exhaust opening with combustion chamber, tubular type body of heater near entry of combustion chamber is provided with heated medium outlet, the tubular type body of heater near exhaust opening is provided with heated medium entrance; Described heat-exchanging chamber and heated medium entrance export with heated medium and are communicated with mutually; Described combustion chamber comprises combustion chamber exterior combustion chamber and inner combustion chamber, and described exterior combustion chamber is set on the inwall of tubular type body of heater, and the bottom of described inner combustion chamber and exterior combustion chamber is interconnected, and described inner combustion chamber is communicated with exhaust opening with the top of exterior combustion chamber; The heat-exchanging chamber being used for medium and being heated is formed between described inner combustion chamber and exterior combustion chamber; The inwall of described exterior combustion chamber is provided with the first spiral deflector, and the outer wall of described inner combustion chamber is provided with second spiral deflector contrary with the first spiral deflector hand of spiral; Described second spiral deflector comprises housing, forms the vapor chamber of vacuum, the inwall of described vapor chamber is equipped with liquid-sucking core, is filled with hydraulic fluid in described vapor chamber in described housing; Described housing is made up of 4Cr5MoSiV steel, and described hydraulic fluid is water.
Embodiment three
Efficient tube type equiflux heater of the present utility model, comprise tubular type body of heater, combustion chamber and heat-exchanging chamber is provided with in described tubular type body of heater, one end of described tubular type body of heater is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater is the exhaust opening with combustion chamber, tubular type body of heater near entry of combustion chamber is provided with heated medium outlet, the tubular type body of heater near exhaust opening is provided with heated medium entrance; Described heat-exchanging chamber and heated medium entrance export with heated medium and are communicated with mutually; Described combustion chamber comprises combustion chamber exterior combustion chamber and inner combustion chamber, and described exterior combustion chamber is set on the inwall of tubular type body of heater, and the bottom of described inner combustion chamber and exterior combustion chamber is interconnected, and described inner combustion chamber is communicated with exhaust opening with the top of exterior combustion chamber; The heat-exchanging chamber being used for medium and being heated is formed between described inner combustion chamber and exterior combustion chamber; The inwall of described exterior combustion chamber is provided with the first spiral deflector, and the outer wall of described inner combustion chamber is provided with second spiral deflector contrary with the first spiral deflector hand of spiral; Described second spiral deflector comprises housing, forms the vapor chamber of vacuum, the inwall of described vapor chamber is equipped with liquid-sucking core, is filled with hydraulic fluid in described vapor chamber in described housing; Described housing is made up of 4Cr5MoSiV steel, and described hydraulic fluid is water; Described heat-exchanging chamber is divided into the high-temperature hot switch room and Low Temperature Thermal switch room that are interconnected, and described Low Temperature Thermal switch room is communicated with heated medium entrance, described high-temperature hot switch room and heated medium outlet.
Embodiment four
On the basis of above-mentioned any embodiment, described heated medium entrance is tangentially arranged on tubular type body of heater.
Embodiment five
On the basis of above-mentioned any embodiment, the width of the first neighbouring spiral deflector is not identical.
Embodiment six
On the basis of above-mentioned any embodiment, described exhaust opening is connected with smoke exhaust pipe, is connected with resilient seal device between described exhaust opening and smoke exhaust pipe.
Claims (6)
1. an efficient tube type equiflux heater, comprise tubular type body of heater, it is characterized in that, combustion chamber and heat-exchanging chamber is provided with in described tubular type body of heater, one end of described tubular type body of heater is the entry of combustion chamber with combustion chamber, the other end of tubular type body of heater is the exhaust opening with combustion chamber, the tubular type body of heater near entry of combustion chamber is provided with heated medium outlet, the tubular type body of heater near exhaust opening is provided with heated medium entrance; Described heat-exchanging chamber and heated medium entrance export with heated medium and are communicated with mutually; Described combustion chamber comprises combustion chamber exterior combustion chamber and inner combustion chamber, and described exterior combustion chamber is set on the inwall of tubular type body of heater, and the bottom of described inner combustion chamber and exterior combustion chamber is interconnected, and described inner combustion chamber is communicated with exhaust opening with the top of exterior combustion chamber; The heat-exchanging chamber being used for medium and being heated is formed between described inner combustion chamber and exterior combustion chamber; The inwall of described exterior combustion chamber is provided with the first spiral deflector, and the outer wall of described inner combustion chamber is provided with second spiral deflector contrary with the first spiral deflector hand of spiral; Described second spiral deflector comprises housing, forms the vapor chamber of vacuum, the inwall of described vapor chamber is equipped with liquid-sucking core, is filled with hydraulic fluid in described vapor chamber in described housing.
2. efficient tube type equiflux heater according to claim 1, is characterized in that, described housing is made up of 4Cr5MoSiV steel, and described hydraulic fluid is water.
3. efficient tube type equiflux heater according to claim 1, it is characterized in that, described heat-exchanging chamber is divided into the high-temperature hot switch room and Low Temperature Thermal switch room that are interconnected, and described Low Temperature Thermal switch room is communicated with heated medium entrance, described high-temperature hot switch room and heated medium outlet.
4. efficient tube type equiflux heater according to claim 1, is characterized in that, described heated medium entrance is tangentially arranged on tubular type body of heater.
5. efficient tube type equiflux heater according to claim 1, is characterized in that, the width of the first neighbouring spiral deflector is not identical.
6., according to the arbitrary described efficient tube type equiflux heater of claim 1-5, it is characterized in that, described exhaust opening is connected with smoke exhaust pipe, is connected with resilient seal device between described exhaust opening and smoke exhaust pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520869189.8U CN205227802U (en) | 2015-11-04 | 2015-11-04 | High -efficient tubular equiflux heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520869189.8U CN205227802U (en) | 2015-11-04 | 2015-11-04 | High -efficient tubular equiflux heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205227802U true CN205227802U (en) | 2016-05-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520869189.8U Expired - Fee Related CN205227802U (en) | 2015-11-04 | 2015-11-04 | High -efficient tubular equiflux heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205227802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276812A (en) * | 2015-11-04 | 2016-01-27 | 苏俊兰 | Efficient tubular uniform-heating heating furnace |
-
2015
- 2015-11-04 CN CN201520869189.8U patent/CN205227802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276812A (en) * | 2015-11-04 | 2016-01-27 | 苏俊兰 | Efficient tubular uniform-heating heating furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zeng Ronghua Inventor before: Su Junlan |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170612 Address after: 621000 Mianyang city of Sichuan Province Branch Innovation Center two building No. 1, No. 371 Patentee after: Mianyang Da Hong Mstar Technology Ltd Address before: Shuangliu County Xihang Hong Kong University Road 610000 in Sichuan province Chengdu City Street No. 77 Patentee before: Su Junlan |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20201104 |