CN203586877U - Double-casing structure heat exchanger - Google Patents
Double-casing structure heat exchanger Download PDFInfo
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- CN203586877U CN203586877U CN201320667462.XU CN201320667462U CN203586877U CN 203586877 U CN203586877 U CN 203586877U CN 201320667462 U CN201320667462 U CN 201320667462U CN 203586877 U CN203586877 U CN 203586877U
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Abstract
The utility model discloses a double-casing structure heat exchanger which comprises an outer casing body, an inner casing body and a heat exchange core, wherein the heat exchange core is arranged in the inner casing body; the inner casing body comprises an opened inner casing and an inner casing cover plate, and the inner casing cover plate is arranged at the opening end and is detachably connected with the inner casing; the outer casing body comprises an opened outer casing and an outer casing cover plate, and the outer casing cover plate is arranged at the opening end and is detachably connected with the outer casing; the inner casing is sheathed in the outer casing, and the inner casing cover plate is sheathed in the outer casing cover plate. The heat exchanger has the advantages that the inner casing body and the outer casing body can be separated from each other, and disassembled, so the heat exchange core in the heat exchanger is convenient to clean and replace, and the damage to the inner casing body and the outer casing body is avoided; meanwhile, heat insulation material is filled between the inner casing and the outer casing, so as to enhance the heat insulation capability of the heat exchanger self, prevent the heat leakage, and enhance the anti-freezing capacity of the heat exchanger.
Description
Technical field
The utility model relates to a kind of heat exchanger, relates in particular to a kind of double-shell structure heat exchanger.
Background technology
Along with scientific and technical development, heat exchanger is when becoming more diverse, require its small while heat exchange amount large, the working environment of application is also more and more harsher, as cold, the temperature difference of thermal medium is increasing, and the structure of most of heat exchangers is all single hull structure, plate, the cylindrical shell of shell side is connected to cold simultaneously, above the seal isolation parts of thermal medium, heat exchanger is due to cold, the temperature difference that thermal medium exists, seal isolation parts will produce thermal stress, while plate, expanding with heat and contract with cold of shell-side cylinder is just concentrated in above seal isolation parts, cause distortion or the weld cracking of isolated part, heat exchanger leakage was lost efficacy.
In order to address the above problem, Chinese patent literature CN102200398B discloses a kind of double-shell heat exchanger, by the outer reducing head of refrigerant import, rectangle outer case, heating agent import reducing head, heating agent outlet reducing head, in the shell body that the outer reducing head of refrigerant exit forms, be equipped with by refrigerant import internal layer reducing head, rectangle internal box, the inner housing that refrigerant exit internal layer reducing head forms, shell body is fixedly connected with inner housing one end, the other end is used packing case to connect, or two ends all connect with packing case, heat exchange element is housed in internal box, the length direction of heat exchange element is consistent with the length direction of inner housing, internal box is over against cold, the face that heating agent is imported and exported does not have tank wall, internal box width and outer case stand out are less than or equal to 0.5mm, two ends, internal box bottom surface are provided with anti-short circuit gripper shoe.In the double-shell heat exchanger described in above-mentioned patent documentation by arranging, shell body makes cold, the seal isolation parts of thermal medium, only weld together with inner housing, interior, packing case or sliding space are set between shell body, because expanding with heat and contract with cold of temperature difference heat medium generation can not act on seal isolation parts, and the stress deformation of seal isolation parts and in, in the expanding with heat and contract with cold of shell body can be passed through, the relative sliding of shell body in the sliding space of stuffing-box or setting and absorbing, solved in original technology because the media of both sides temperature difference is compared with the stress deformation and the weld cracking problem that cause greatly.
But the double-shell heat exchanger described in above-mentioned patent documentation has the following disadvantages: in this double-shell heat exchanger, shell body is that one end is fixedly connected with inner housing, one end connects with packing case, heat exchange element is arranged in inner housing, in in this double-shell heat exchanger, shell body is for being fixedly connected with, like this when heat exchange element is because of fouling or dirty stifled need to carry out disassembly, cleaning time, obtain in first broken ring, being fixedly connected with between shell body, then could from inner housing, heat exchange element be taken out, it dismantles inconvenience, easily internal during dismounting, shell body causes damage, simultaneously in this double-shell heat exchanger, any attemperator is not set, make the anti-freeze ability of this double-shell heat exchanger, when the temperature of heat transferring medium is on the low side, heat exchanger is easily damaged by frost, and while being used in refrigeration-heating air-conditioner, heat-pump hot-water field, this double-shell heat exchanger needs extra insulation to process.
Utility model content
For this reason, technical problem to be solved in the utility model is double-shell heat exchanger of the prior art, between inside and outside housing for being fixedly connected with, dismounting inconvenience, and self does not have heat insulation function, and then provide a kind of being convenient to dismantle, and self have the double-shell structure heat exchanger of heat insulation function.
For solving the problems of the technologies described above, a kind of double-shell structure heat exchanger of the present utility model, it comprises shell body, inner housing, and be located at the heat exchange core in described inner housing, described inner housing comprises uncovered inner casing and is arranged on opening end, the interior housing-plate removably connecting with described inner casing, described shell body comprises uncovered shell and is arranged on opening end, the cover plate of outer casing removably connecting with described shell, and described inner casing is set in described shell, described interior housing-plate is set in described cover plate of outer casing, between described inner casing and described shell, be filled with insulation material.
In the utility model, the opening end of described inner casing forms circumferential outward extending connection edge, on described connection edge, form and pass through hole, the relevant position of the opening end of described shell forms screwed hole, bolt passes through hole described on described cover plate of outer casing, described interior housing-plate and described connection edge, and the described screwed hole on described shell is connected, by described inner casing and described interior housing-plate, and described shell and described cover plate of outer casing are fixedly box like structure.
In the utility model, between described inner casing and described interior housing-plate, be provided with seal washer.
In the utility model, described inner casing and described interior housing-plate adopt engineering plastics to make, and described shell and described cover plate of outer casing adopt metal to make.
In the utility model, on described shell body, form for importing shell first entrance of the first heat transferring medium, for importing shell second entrance of the second heat transferring medium and exporting for deriving the shell first of described the first heat transferring medium, for deriving shell second outlet of described the second heat transferring medium, on the relevant position of described inner housing, form for described the first heat transferring medium being imported to inner casing the first entrance in described heat exchange core, for described the second heat transferring medium being imported to inner casing the second entrance in described inner casing and for inner casing the first outlet from deriving in described heat exchange core by described the first heat transferring medium, for inner casing the second outlet from deriving in described inner casing by described the second heat transferring medium.
In the utility model, described shell the first entrance, shell the second entrance and shell the first outlet, shell the second outlet are for being molded over the through hole on described shell body.
In the utility model, described inner casing the first entrance, inner casing the second entrance and inner casing the first outlet, inner casing the second outlet are for being molded over the boss hole on described inner housing, and described boss hole stretches out described shell body through described through hole.
In the utility model, on described boss hole, be also arranged with adapter assembly, described adapter assembly is tightly connected described boss hole, described through hole and described shell body three.
In the utility model, described adapter assembly comprises seal and compressing member.
In the utility model, in described inner housing, be provided with deflection plate, described interior housing-plate is provided with for the draw-in groove of described deflection plate is installed, and the inner space of described inner housing forms circuitous channel under the cooperation of described deflection plate and described draw-in groove.
In the utility model, the heat exchanger tube of described heat exchange core is comprised of with the arcuation pipe that tail end is connected into continuous bend line successively mutually several head ends, the angle of crossing between the head end of described arcuation pipe and tail end is greater than 180 degree, at grade, the center line of two adjacent described arcuation pipe junctions has the center line of public point of contact or adjacent two described arcuation pipe junctions to be connected with tube hub line is tangent always for the head end of described arcuation pipe and tail end.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) in the utility model, described inner housing comprises uncovered inner casing and is arranged on opening end, the interior housing-plate removably connecting with described inner casing, described shell body comprises uncovered shell and is arranged on opening end, the cover plate of outer casing removably connecting with described shell, and described inner casing is set in described shell, described interior housing-plate is set in described cover plate of outer casing, in the utility model, in described, shell body can not only be dismantled each other, and in described, shell body itself also can be dismantled, this heat exchanger is convenient to be installed on cleaning and the replacing of the described heat exchange core of its inside like this, and not in described, shell body causes damage, simultaneously, in the utility model, between described inner casing and described shell, be filled with insulation material, thereby strengthened the insulating power of this heat exchanger itself, the anti-leak-stopping heat of energy, and the anti-freeze ability of this heat exchanger is strengthened, when the temperature of heat transferring medium is on the low side, heat exchanger can not occur freezing, and while being used in refrigeration-heating air-conditioner, heat-pump hot-water field, this heat exchanger does not need extra insulation to process yet, so this heat exchanger is not only convenient to dismounting, but also has heat insulation function.
(2) in the utility model, the opening end of described inner casing forms circumferential outward extending connection edge, on described connection edge, form and pass through hole, the relevant position of the opening end of described shell forms screwed hole, bolt passes through hole described on described cover plate of outer casing, described interior housing-plate and described connection edge, and the described screwed hole on described shell is connected, by described inner casing and described interior housing-plate, and described shell and described cover plate of outer casing are fixedly box like structure.In the utility model, use described bolt just described shell and described cover plate of outer casing, described inner casing and described interior housing-plate all can be connected into an integral body, it is very convenient that thereby the heat exchanger dismounting that makes to have this kind of shell structure is got up, and simple in structure, is easy to processing and fabricating.
(3) in the utility model, between described inner casing and described interior housing-plate, be provided with seal washer, make this heat exchanger inside there is good sealing property, prevent that heat transferring medium from leaking, and then affect heat exchange efficiency.
(4) in the utility model, described inner casing and described interior housing-plate can adopt engineering plastics to make, thereby make this heat exchanger have stronger anti-ice, freeze ability; In order to strengthen the bearing capacity of this heat exchanger and described inner casing, described shell and described cover plate of outer casing can adopt metal to make.
(5) in the utility model, on described boss hole, be also arranged with adapter assembly, described adapter assembly is tightly connected described boss hole, described through hole and described shell body three, thereby avoids heat transferring medium to leak at place, entry and exit, guarantees the good seal performance of this heat exchanger.
(6) in the utility model, in described inner housing, be provided with deflection plate, described interior housing-plate is provided with for the draw-in groove of described deflection plate is installed, the inner space of described inner housing forms circuitous channel under the cooperation of described deflection plate and described draw-in groove, heat transferring medium is roundabout flowing in described passage, strengthened flow-disturbing, thereby heat transferring medium can better carry out heat exchange in this heat exchanger, improve the heat exchange efficiency of heat transferring medium.
(7) in the utility model, the heat exchanger tube of described heat exchange core is comprised of with the arcuation pipe that tail end is connected into continuous bend line successively mutually several head ends, the angle of crossing between the head end of described arcuation pipe and tail end is greater than 180 degree, at grade, the center line of two adjacent described arcuation pipe junctions has the center line of public point of contact or adjacent two described arcuation pipe junctions to be connected with tube hub line is tangent always for the head end of described arcuation pipe and tail end.Coil pipe crooked arc length in minimum bending radius by said structure extends as far as possible, both guaranteed that internal thread or micro-rib structure in arcuation pipe were indeformable, save as much as possible again space simultaneously, compact conformation, therefore, the heat exchanger volume with this coil pipe is little, and many in unit volume inner coil pipe quantity, heat exchange efficiency is high.
Accompanying drawing explanation
For content of the present utility model is more likely to be clearly understood, according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the heat exchanger schematic diagram with double-shell structure described in the utility model;
Fig. 2 is inner casing front view described in the utility model;
Fig. 3 is interior housing-plate schematic diagram described in the utility model;
Fig. 4 is cover plate of outer casing schematic diagram described in the utility model;
Fig. 5 is heat exchange core schematic diagram described in the utility model.
In figure, Reference numeral is expressed as: 1-shell; The first outlet of 1-1-shell; 1-2-shell the first entrance; 2-inner casing; 2-1-deflection plate; The first outlet of 2-2-inner casing; 2-3-inner casing the first entrance; 3-heat exchange core; 4-seal washer; Housing-plate in 5-; The second outlet of 5-1-inner casing; 5-2-inner casing the second entrance; 6-cover plate of outer casing; The second outlet of 6-1-shell; 6-2-shell the second entrance; 7-adapter assembly; 8-bolt.
The specific embodiment
Below with reference to accompanying drawing, use following examples to be further elaborated the utility model.
As shown in the figure, a kind of heat exchanger with double-shell structure described in the present embodiment, it comprises shell body, inner housing, and be located at the heat exchange core 3 in described inner housing, described inner housing comprises uncovered inner casing 2 and is arranged on opening end, the interior housing-plate 5 removably connecting with described inner casing 2, described shell body comprises uncovered shell 1 and is arranged on opening end, the cover plate of outer casing 6 removably connecting with described shell 1, and described inner casing 2 is set in described shell 1, described interior housing-plate 5 is set in described cover plate of outer casing 6, between described inner casing 2 and described shell 1, be filled with insulation material.In the present embodiment, described inside and outside housing can not only be dismantled each other, and described inside and outside housing itself also can be dismantled, this heat exchanger is not only convenient to be installed on cleaning and the replacing of the described heat exchange core 3 of its inside like this, and described inside and outside housing is not caused to damage; Simultaneously, in the present embodiment, between described inner casing 2 and described shell 1, be filled with insulation material, thereby strengthened the insulating power of this heat exchanger itself, the anti-leak-stopping heat of energy, and the anti-freeze ability of this heat exchanger is strengthened, when the temperature of heat transferring medium is on the low side, this heat exchanger can not occur freezing, and while being used in refrigeration-heating air-conditioner, heat-pump hot-water field, this heat exchanger does not need extra insulation to process yet, so this heat exchanger is not only convenient to dismounting, but also has heat insulation function.
In the present embodiment, the opening end of described inner casing 2 forms circumferential outward extending connection edge, on described connection edge, form and pass through hole, the relevant position of the opening end of described shell 1 forms screwed hole, bolt 8 passes through hole described on described cover plate of outer casing 6, described interior housing-plate 5 and described connection edge, and the described screwed hole on described shell 1 is connected, by described inner casing 2 and described interior housing-plate 5, and described shell 1 and described cover plate of outer casing 6 are fixedly box like structure; In the present embodiment, use described bolt 8 just described shell 1 and described cover plate of outer casing 6, described inner casing 2 all can be connected into an integral body with described interior housing-plate 5, it is very convenient that thereby the heat exchanger dismounting that makes to have this kind of shell structure is got up, and simple in structure, is easy to processing and fabricating.
Meanwhile, in the present embodiment, between described inner casing 2 and described interior housing-plate 5, be provided with seal washer 4, make this heat exchanger inside there is good sealing property, prevent that the leakage because of heat transferring medium from affecting the heat exchange efficiency of this heat exchanger.In an embodiment, as preferred embodiment, described inner casing 2 and described interior housing-plate 5 can adopt engineering plastics to make, thereby make this heat exchanger have stronger anti-ice, freeze ability; In order to strengthen the bearing capacity of this heat exchanger and described inner casing 2, described shell 1 and described cover plate of outer casing 6 can adopt metal to make; Certain described inner casing 2 and described interior housing-plate 5, and described shell 1 and described cover plate of outer casing 6 can also adopt other materials to make according to actual conditions.
On the basis of above-described embodiment, as preferred embodiment, in the present embodiment, on described shell body, form for importing the shell first entrance 1-2 of the first heat transferring medium, for importing the shell second entrance 6-2 of the second heat transferring medium and exporting 1-1 for deriving the shell first of described the first heat transferring medium, for deriving the shell second outlet 6-1 of described the second heat transferring medium, on the relevant position of described inner housing, form for described the first heat transferring medium being imported to inner casing the first entrance 2-3 in described heat exchange core 3, for described the second heat transferring medium being imported to inner casing the second entrance 5-2 in described inner casing 2 and for inner casing the first outlet 2-2 from described heat exchange core 3 interior derivation by described the first heat transferring medium, for inner casing the second outlet 5-1 from described inner casing 2 interior derivation by described the second heat transferring medium.As preferred embodiment, in the present embodiment, described shell the first entrance 1-2 and described shell the first outlet 1-1 are located on described shell 1, and described shell the second entrance 6-2 and described shell the second outlet 6-1 are located on described cover plate of outer casing 6.When actual processing and fabricating, can on this heat exchanger, increase according to actual needs one or more heat transferring mediums entry and exit, inside increases the heat exchange core 3 of respective numbers, heat exchange when using two or more heat transferring medium simultaneously.
In the present embodiment, described shell the first entrance 1-2, shell the second entrance 6-2 and shell the first outlet 1-1, shell the second outlet 6-1 are the through hole being molded on described shell body; Described inner casing the first entrance 2-3, inner casing the second entrance 5-2 and inner casing the first outlet 2-2, inner casing the second outlet 5-1 are the boss hole being molded on described inner housing, and described boss hole stretches out described shell body through described through hole; On described boss hole, be also arranged with adapter assembly 7, described adapter assembly 7 is tightly connected described boss hole, described through hole and described shell body three, and described adapter assembly 7 comprises seal and compressing member; Thereby avoid heat transferring medium to leak at place, entry and exit, guarantee the good seal performance of this heat exchanger.Described adapter assembly 7 comprises seal and compressing member, and preferred described seal is elastic sealed body, and described compressing member is clamp nut.
Further, on the basis of above-described embodiment, in described inner housing, be provided with deflection plate 2-1, described interior housing-plate 5 is provided with for the draw-in groove of described deflection plate 2-1 is installed, and the inner space of described inner housing forms circuitous channel under the cooperation of described deflection plate 2-1 and described draw-in groove; Heat transferring medium is roundabout flowing in described passage, strengthened flow-disturbing, thereby heat transferring medium can better carry out heat exchange in this heat exchanger, improved the heat exchange efficiency of heat transferring medium.
In the present embodiment, the heat exchanger tube of described heat exchange core 3 is comprised of with the arcuation pipe that tail end is connected into continuous bend line successively mutually several head ends, the angle of crossing between the head end of described arcuation pipe and tail end is greater than 180 degree, the angle of crossing between preferred described arcuation pipe head end and tail end is 186～286 degree, the head end of described arcuation pipe and tail end are at grade, the center line of two adjacent described arcuation pipe junctions has the center line of public point of contact or adjacent two described arcuation pipe junctions to be connected with tube hub line is tangent always, described in making.Heat exchanger tube crooked arc length in minimum bending radius by said structure extends as far as possible, both guaranteed that internal thread or micro-rib structure in arcuation pipe were indeformable, save as much as possible again space simultaneously, compact conformation, therefore, the heat exchanger volume with this heat exchanger tube is little, and in unit volume, heat exchange quantity is many, and heat exchange efficiency is high.
Obviously, above-described embodiment is only for example is clearly described, and the not restriction to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without also giving all embodiments.And the apparent variation of being extended out thus or change are still among the protection domain in the invention.
Claims (10)
1. a double-shell structure heat exchanger, it comprises shell body, inner housing, and be located at the heat exchange core (3) in described inner housing, it is characterized in that: described inner housing comprises uncovered inner casing (2) and is arranged on opening end, the interior housing-plate (5) removably connecting with described inner casing (2), described shell body comprises uncovered shell (1) and is arranged on opening end, the cover plate of outer casing (6) removably connecting with described shell (1), and described inner casing (2) is set in described shell (1), described interior housing-plate (5) is set in described cover plate of outer casing (6), between described inner casing (2) and described shell (1), be filled with insulation material.
2. a kind of double-shell structure heat exchanger according to claim 1, it is characterized in that: the opening end of described inner casing (2) forms circumferential outward extending connection edge, on described connection edge, form and pass through hole, the relevant position of the opening end of described shell (1) forms screwed hole, bolt (8) is through described cover plate of outer casing (6), described on described interior housing-plate (5) and described connection edge, pass through hole, and the described screwed hole on described shell (1) is connected, by described inner casing (2) and described interior housing-plate (5), and described shell (1) and described cover plate of outer casing (6) are fixedly box like structure.
3. a kind of double-shell structure heat exchanger according to claim 2, is characterized in that: between described inner casing (2) and described interior housing-plate (5), be provided with seal washer (4).
4. a kind of double-shell structure heat exchanger according to claim 3, is characterized in that: described inner casing (2) and described interior housing-plate (5) adopt engineering plastics to make, and described shell (1) and described cover plate of outer casing (6) adopt metal to make.
5. according to a kind of double-shell structure heat exchanger described in any one in claim 1-4, it is characterized in that: on described shell body, form for importing shell first entrance (1-2) of the first heat transferring medium, for importing shell second entrance (6-2) of the second heat transferring medium and exporting (1-1) for deriving the shell first of described the first heat transferring medium, for deriving shell second outlet (6-1) of described the second heat transferring medium, on the relevant position of described inner housing, form for described the first heat transferring medium being imported to inner casing the first entrance (2-3) in described heat exchange core (3), for will described the second heat transferring medium importing inner casing the second entrance (5-2) in described inner casing (2) and for will described the first heat transferring medium exporting (2-2) from the inner casing first of derivation in described heat exchange core (3), for described the second heat transferring medium is exported to (5-1) from the interior inner casing of deriving second of described inner casing (2).
6. a kind of double-shell structure heat exchanger according to claim 5, is characterized in that: described shell the first entrance (1-2), shell the second entrance (6-2) and shell the first outlet (1-1), shell the second outlet (6-1) are for being molded over the through hole on described shell body.
7. a kind of double-shell structure heat exchanger according to claim 6, it is characterized in that: described inner casing the first entrance (2-3), inner casing the second entrance (5-2) and inner casing the first outlet (2-2), inner casing the second outlet (5-1) are for being molded over the boss hole on described inner housing, and described boss hole stretches out described shell body through described through hole.
8. a kind of double-shell structure heat exchanger according to claim 7, is characterized in that: on described boss hole, be also arranged with adapter assembly (7), described adapter assembly (7) is tightly connected described boss hole, described through hole and described shell body three.
9. a kind of double-shell structure heat exchanger according to claim 8, is characterized in that: described adapter assembly (7) comprises seal and compressing member.
10. a kind of double-shell structure heat exchanger according to claim 9, it is characterized in that: in described inner housing, be provided with deflection plate (2-1), described interior housing-plate (5) is provided with for the draw-in groove of described deflection plate (2-1) is installed, and the inner space of described inner housing forms circuitous channel under the cooperation of described deflection plate (2-1) and described draw-in groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320667462.XU CN203586877U (en) | 2013-10-28 | 2013-10-28 | Double-casing structure heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320667462.XU CN203586877U (en) | 2013-10-28 | 2013-10-28 | Double-casing structure heat exchanger |
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| Publication Number | Publication Date |
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| CN203586877U true CN203586877U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320667462.XU Withdrawn - After Issue CN203586877U (en) | 2013-10-28 | 2013-10-28 | Double-casing structure heat exchanger |
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| CN (1) | CN203586877U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557722A (en) * | 2013-10-28 | 2014-02-05 | 杭州沈氏换热器有限公司 | Heat exchanger with double-shell structure |
| CN116481355A (en) * | 2023-06-25 | 2023-07-25 | 江苏鹏浩热工技术有限公司 | Liquid cooling heat exchanger for air conditioning equipment |
-
2013
- 2013-10-28 CN CN201320667462.XU patent/CN203586877U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557722A (en) * | 2013-10-28 | 2014-02-05 | 杭州沈氏换热器有限公司 | Heat exchanger with double-shell structure |
| CN103557722B (en) * | 2013-10-28 | 2015-04-15 | 杭州沈氏节能科技股份有限公司 | Heat exchanger with double-shell structure |
| CN116481355A (en) * | 2023-06-25 | 2023-07-25 | 江苏鹏浩热工技术有限公司 | Liquid cooling heat exchanger for air conditioning equipment |
| CN116481355B (en) * | 2023-06-25 | 2023-08-15 | 江苏鹏浩热工技术有限公司 | Liquid cooling heat exchanger for air conditioning equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HANGZHOU SHENSHI ENERGY SAVING TECHNOLOGY CO., LTD Free format text: FORMER NAME: HANGZHOU SHENSHI HEAT EXCHANGER CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Jiande hangtou Town Industrial Zone, Hangzhou city 311612 large mouth block in Zhejiang Province Patentee after: HANGZHOU SHENSHI ENERGY CONSERVATION TECHNOLOGY CO., LTD. Address before: Jiande City, Zhejiang province 311612 large hangtou Town Industrial Park Patentee before: Hangzhou Shenshi Heat Exchanger Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140507 Effective date of abandoning: 20150415 |
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| RGAV | Abandon patent right to avoid regrant |