CN103278037A - High-efficiency scaling turbolator ring pipe frame and heat exchanger with same - Google Patents
High-efficiency scaling turbolator ring pipe frame and heat exchanger with same Download PDFInfo
- Publication number
- CN103278037A CN103278037A CN2013102329998A CN201310232999A CN103278037A CN 103278037 A CN103278037 A CN 103278037A CN 2013102329998 A CN2013102329998 A CN 2013102329998A CN 201310232999 A CN201310232999 A CN 201310232999A CN 103278037 A CN103278037 A CN 103278037A
- Authority
- CN
- China
- Prior art keywords
- turbolator
- heat exchanger
- endless tube
- divergent
- convergent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a high-efficiency scaling turbolator ring pipe frame and a heat exchanger with the same. The high-efficiency scaling turbolator ring pipe frame is mainly composed of a fixing ring, a plurality of ring pipes and a plurality of scaling turbolators. The plurality of ring pipes and the plurality of turbolators are fixedly arranged inside the fixing ring, the ring pipes are distributed at intervals, every turbolator is arranged between two neighboring ring pipes and fixedly connected with the neighboring ring pipes, the interval between the neighboring ring pipes is a channel for out-pipe heat exchange medium to flow, and the ring pipes are used for penetrating heat exchange pipes. The high-efficiency scaling turbolator ring pipe frame is applicable to ordinary heat exchange pipes, can reinforce out-pipe heat exchange, reduce out-pipe flowing and heat exchange dead areas and improve the effective heat exchange area of the heat exchanger, and enables a traditional shell-and-tube heat exchanger to be updated and improved into a high-efficiency heat exchanger. Meanwhile, the high-efficiency scaling turbolator ring pipe frame can also be applied to a high-efficiency heat exchanger, can reinforce the in-pipe heat exchange and the out-pipe heat exchange simultaneously, and improves the average heat exchange coefficient of the heat exchanger.
Description
Technical field
The present invention relates to a kind of heat exchanger and parts thereof, the heat exchanger that is specifically related to a kind of turbolator framework and this framework is housed.
Background technology
Traditional shell-and-tube heat exchanger is segmental baffle board heat exchangers, and the outer type of flow of its pipe is transversal flow, and the segmental baffle near zone forms flow dead easily outside pipe, influences the effective heat exchange area of heat exchanger.Simultaneously, because the flow feature of its extratubal fluid transversal flow tube bank, the flow resistance of shell-side fluid is bigger, thereby is easy to generate mechanical oscillation and consequent noise and mechanical failure, thereby influences the life-span of heat exchanger.
Heat exchangers such as novel shell-and-tube heat exchanger such as heat exchanger with oblate, helicla flute heat exchanger and convergent-divergent heat exchange of heat pipe, its heat exchange tube structure are comparatively complicated, the processing cost height; Simultaneously, because it adopts novel heat exchanger tube, thereby can not transform on the basis of conventional tube shell heat exchanger and upgrade.
For shell-and-tube heat exchanger, with respect to the tube fluid heat exchange, the coefficient of heat transfer of extratubal fluid is less, and the deflection plate near zone forms easily to flow and dies, and effective heat exchange area is little, and it is little to manage outer mean heat transfer coefficient, and thermal resistance is bigger.Therefore how to reduce the heat exchange thermal resistance of extratubal fluid, improve the coefficient of heat transfer of extratubal fluid, become the heat exchanger enhanced heat exchange and need studying a question of solution badly.
Summary of the invention
In order to overcome above-mentioned deficiency, the object of the invention is to provide a kind of heat exchange efficiency that can improve heat exchanger, is conducive to the heavy duty detergent convergent-divergent turbolator endless tube framework to upgrading with the conventional tube shell heat exchanger and transforming.
Another object of the present invention is to provide a kind of heat exchanger that above-mentioned turbolator endless tube framework is housed.
To achieve these goals, the technical solution used in the present invention is:
Heavy duty detergent convergent-divergent turbolator endless tube framework, it mainly is made of retainer ring, a plurality of endless tube and a plurality of convergent-divergent turbolator, a plurality of endless tubes and a plurality of convergent-divergent turbolator are fixed in the retainer ring, described endless tube is spaced apart, the convergent-divergent turbolator is distributed between the endless tube, each convergent-divergent turbolator is fixedlyed connected with adjacent endless tube, the passage that flows for the outer heat exchange medium of pipe in the gap between the endless tube, and described endless tube is in order to intert heat exchanger tube.
Described endless tube laterally is arranged in a row, endless tube is arranged in many rows from top to bottom, endless tube among the last row is corresponding with row's down endless tube, on arrange and be provided with one between endless tube and the adjacent following row's endless tube and arrange convergent-divergent turbolator spaced apart, the convergent-divergent turbolator is not corresponding up and down with endless tube.
Adopt the mode of welding between described convergent-divergent turbolator and the adjacent endless tube, the convergent-divergent turbolator that contacts with retainer ring and endless tube weld with retainer ring respectively.
Described convergent-divergent turbolator is by the uiform section section, shrinks the variable cross-section section and expand the rod-like structure that the variable cross-section section constitutes.
A kind of heat exchanger, it is mainly by a plurality of described heavy duty detergent convergent-divergent turbolator endless tube frameworks, a plurality of heat exchanger tubes, two seal diaphragms, tubular shell and the end socket formation that is located at the tubular shell two ends, two seal diaphragms are located at the both ends of tubular shell, the two ends of described heat exchanger tube are fixed on two seal diaphragms and with end socket and communicate, a plurality of heavy duty detergent convergent-divergent turbolator endless tube frameworks are distributed in the tubular shell, the endless tube of heat exchanger tube from heavy duty detergent convergent-divergent turbolator endless tube framework passes, near being respectively equipped with the outer heat exchange medium inflow entrance of heat exchanger tube and the outer heat exchange medium flow export of heat exchanger tube on the barrel at tubular shell two ends, described two end sockets are provided with heat exchanger tube internal thermal exchange media inflow entrance and heat exchanger tube internal thermal exchange media flow export.
Described a plurality of heavy duty detergent convergent-divergent turbolator endless tube framework is fixed into an integral body by pull bar, and pull bar passes each endless tube frame fixation from each heavy duty detergent convergent-divergent turbolator endless tube framework.
Be connected by flange between described end socket and the tubular shell.
The bottom of described tubular shell is provided with base.
The flow direction of described heat exchanger tube internal thermal exchange media is opposite with the flow direction of the outer heat exchange medium of heat exchanger tube.
Beneficial effect of the present invention: owing to adopt above-mentioned version, the advantage of the existing traditional segmental baffle shell-and-tube heat exchanger of the present invention is: 1. reduced the flow dead of the outer heat exchange medium of heat exchanger tube, improved the effective heat exchange area of heat exchanger; 2. can adopt countercurrent flow, improve the mean temperature difference of heat exchanger tube internal-external heat exchange medium; 3. the outer heat exchange medium of heat exchanger tube flows and is parallel baffled, has reduced the outer heat exchange medium of heat exchanger tube and has exchanged the impact of heat pipe and produce mechanical oscillation and consequent noise and mechanical failure, has prolonged the working life of heat exchanger; 4. because the outer convergent-divergent turbolator endless tube frame structure that adopted of pipe, the flow-disturbing of reinforced pipe outer fluid flows, and interrupts and destroy the boundary layer of extratubal fluid, and the outer heat exchange medium heat exchange of thermoexcell has improved the average heat transfer coefficient of the outer heat exchange medium of heat exchanger tube.The advantage of the existing shell-and-tube heat exchanger of the present invention such as heat exchanger with oblate, helicla flute heat exchanger and convergent-divergent heat exchange of heat pipe is: 1. convergent-divergent turbolator endless tube frame structure is comparatively simple, and processing cost is low; 2. owing to can be applicable to common heat exchanger tube, thereby can on the basis of traditional heat exchangers, utilize original heat exchanger tube, segmental baffle is changed to convergent-divergent turbolator endless tube framework, be conducive to realize transformation and the renewal of traditional heat exchangers.Its cost is saved greatly.
Description of drawings
The present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is side view shown in Figure 1;
Fig. 3 is the structural representation that convergent-divergent turbolator shown in Figure 2 is amplified;
Fig. 4 is the structural representation of heat exchanger of the present invention.
Among the figure: 1, retainer ring; 2, endless tube; 3, convergent-divergent turbolator; 4, the mobile passage of the outer heat exchange medium of pipe; 5, uiform section section; 6, shrink the variable cross-section section; 7, expansion variable cross-section section; 8, heavy duty detergent convergent-divergent turbolator endless tube framework; 9, heat exchanger tube; 10, seal diaphragm; 11, tubular shell; 12, front-end end enclosure; 13, base; 14, flange; 15, the outer heat exchange medium inflow entrance of heat exchanger tube; 16, the outer heat exchange medium flow export of heat exchanger tube; 17, heat exchanger tube internal thermal exchange media inflow entrance; 18, heat exchanger tube internal thermal exchange media flow export; 19, pull bar; 20, rear end end socket.
The specific embodiment
As Fig. 1,2, shown in 3, heavy duty detergent convergent-divergent turbolator endless tube framework, it is mainly by retainer ring 1, a plurality of endless tubes 2 and a plurality of convergent-divergent turbolator 3 constitute, a plurality of endless tubes 2 and a plurality of convergent-divergent turbolator 3 are fixed in the retainer ring 1, described endless tube 2 laterally is arranged in a row, and it is spaced apart, endless tube 2 is spaced into many rows from top to bottom, endless tube 2 among the last row is corresponding with the endless tube of arranging down 2, be provided with one between last row endless tube and the adjacent following row's endless tube and arrange convergent-divergent turbolator 3 spaced apart, convergent-divergent turbolator 3 is not corresponding up and down with endless tube 2, adopt the mode of welding between described convergent-divergent turbolator 3 and the adjacent endless tube 2, the convergent-divergent turbolator that contacts with retainer ring and endless tube weld with retainer ring 1 respectively, the passage 4 that flows for the outer heat exchange medium of pipe in the gap between the endless tube, and described endless tube is in order to intert heat exchanger tube.Described convergent-divergent turbolator 3 is by uiform section section 5, shrinks variable cross-section section 6 and expand the rod-like structure that variable cross-section section 7 constitutes.
As shown in Figure 4, a kind of heat exchanger, it is mainly by a plurality of described heavy duty detergent convergent-divergent turbolator endless tube frameworks 8, a plurality of heat exchanger tubes 9, two seal diaphragms 10, tubular shell 11 and the front-end end enclosure 12 that is located at tubular shell 11 two ends, rear end end socket 20 constitutes, the bottom of described tubular shell 11 is provided with base 13, described front-end end enclosure 12 is connected by flange 14 with the two ends of tubular shell 11 respectively with rear end end socket 20, two seal diaphragms 10 are located at the both ends of tubular shell 11, the two ends of described heat exchanger tube 9 are fixed on two seal diaphragms 10 and with front-end end enclosure 12 and rear end end socket 20 and communicate, a plurality of heavy duty detergent convergent-divergent turbolator endless tube frameworks 8 are distributed in the tubular shell 11, the endless tube 2 of heat exchanger tube 9 from heavy duty detergent convergent-divergent turbolator endless tube framework 8 passes, near being respectively equipped with the outer heat exchange medium inflow entrance 15 of heat exchanger tube and the outer heat exchange medium flow export 16 of heat exchanger tube on the barrel at tubular shell 11 two ends, be respectively equipped with heat exchanger tube internal thermal exchange media inflow entrance 17 and heat exchanger tube internal thermal exchange media flow export 18 on described front-end end enclosure 12 and the rear end end socket 20.
Described a plurality of heavy duty detergent convergent-divergent turbolator endless tube framework 8 is fixed into an integral body by four pull bars 19, and pull bar 19 passes each endless tube frame fixation from the endless tube of each heavy duty detergent convergent-divergent turbolator endless tube framework 8.Endless tube is mainly used to intert heat exchanger tube, can certainly reserve four endless tubes, in order to interting pull bar 19, for the diameter of the pull bar 19 that adapts to, can be with the diameter design of these four endless tubes smaller.
Operation principle: the flow process of heat exchanger tube internal thermal exchange media: the heat exchanger tube internal thermal exchange media is by the heat exchanger tube internal thermal exchange media inflow entrance 17 on the end socket 12 of front end, tangentially enter front-end end enclosure 12, enter in each heat exchanger tube 9 by seal diaphragm 10 distribution, and carry out heat exchange with the outer heat exchange medium of heat exchanger tube.The seal diaphragm 10 of the other end by tubular shell compiles and enters rear end end socket 20 then, and the heat exchanger tube internal thermal exchange media tangentially flows out by heat exchanger tube internal thermal exchange media flow export 18.Tangentially enter with the slipstream heat exchanger tube internal thermal exchange media fluid of sening as an envoy to and distribute and compile more even.
The flow process of the outer heat exchange medium of heat exchanger tube: by the outer heat exchange medium inflow entrance 15 of heat exchanger tube, tangentially enter tubular shell 11, carry out heat exchange with the heat exchanger tube internal thermal exchange media.In tubular shell, behind the passage 4 that the outer heat exchange medium of pipe in outer first heavy duty detergent convergent-divergent turbolator endless tube framework 8 of the every process of heat exchange medium of heat exchanger tube flows, under the effect of convergent-divergent turbolator, the flow-disturbing of reinforced pipe outer fluid flows, interrupt and destroy the boundary layer of extratubal fluid, the outer heat exchange medium heat exchange of thermoexcell, through behind a series of heavy duty detergent convergent-divergent turbolator endless tube frameworks 8, the outer heat exchange medium of heat exchanger tube flows out tubular shell by the outer heat exchange medium flow export 16 of heat exchanger tube.Tangentially enter with the slipstream heat exchange medium fluid of sening as an envoy to and distribute and compile more even.
The above is preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this.Should be pointed out that for those skilled in the art, technical scheme of the present invention is made amendment or is equal to replacement, do not break away from protection scope of the present invention.
Claims (9)
1. heavy duty detergent convergent-divergent turbolator endless tube framework, it is characterized in that: it mainly is made of retainer ring, a plurality of endless tube and a plurality of convergent-divergent turbolator, a plurality of endless tubes and a plurality of convergent-divergent turbolator are fixed in the retainer ring, described endless tube is spaced apart, the convergent-divergent turbolator is distributed between the endless tube, each convergent-divergent turbolator is fixedlyed connected with adjacent endless tube, the passage that flows for the outer heat exchange medium of pipe in the gap between the endless tube, and described endless tube is in order to intert heat exchanger tube.
2. heavy duty detergent convergent-divergent turbolator endless tube framework according to claim 1, it is characterized in that: described endless tube laterally is arranged in a row, endless tube is arranged in many rows from top to bottom, endless tube among the last row is corresponding with the endless tube of arranging down, be provided with one between last row endless tube and the adjacent following row's endless tube and arrange convergent-divergent turbolator spaced apart, the convergent-divergent turbolator is not corresponding up and down with endless tube.
3. heavy duty detergent convergent-divergent turbolator endless tube framework according to claim 1 and 2 is characterized in that: adopt the mode of welding between described convergent-divergent turbolator and the adjacent endless tube, the convergent-divergent turbolator that contacts with retainer ring and endless tube weld with retainer ring respectively.
4. heavy duty detergent convergent-divergent turbolator endless tube framework according to claim 3 is characterized in that: described convergent-divergent turbolator is by the uiform section section, shrinks the rod-like structure that variable cross-section section and expansion variable cross-section section constitute.
5. heat exchanger, it is characterized in that: it is mainly by each described a plurality of heavy duty detergent convergent-divergent turbolator endless tube frameworks of claim 1 to 4, a plurality of heat exchanger tubes, two seal diaphragms, tubular shell and the end socket formation that is located at the tubular shell two ends, two seal diaphragms are located at the both ends of tubular shell, the two ends of described heat exchanger tube are fixed on two seal diaphragms and with end socket and communicate, a plurality of heavy duty detergent convergent-divergent turbolator endless tube frameworks are distributed in the tubular shell, the endless tube of heat exchanger tube from heavy duty detergent convergent-divergent turbolator endless tube framework passes, near being respectively equipped with the outer heat exchange medium inflow entrance of heat exchanger tube and the outer heat exchange medium flow export of heat exchanger tube on the barrel at tubular shell two ends, described two end sockets are provided with heat exchanger tube internal thermal exchange media inflow entrance and heat exchanger tube internal thermal exchange media flow export.
6. heat exchanger according to claim 5, it is characterized in that: described a plurality of heavy duty detergent convergent-divergent turbolator endless tube frameworks are fixed into an integral body by pull bar, and pull bar passes each endless tube frame fixation from each heavy duty detergent convergent-divergent turbolator endless tube framework.
7. heat exchanger according to claim 5 is characterized in that: be connected by flange between described end socket and the tubular shell.
8. heat exchanger according to claim 5, it is characterized in that: the bottom of described tubular shell is provided with base.
9. heat exchanger according to claim 5 is characterized in that: the flow direction of described heat exchanger tube internal thermal exchange media is opposite with the flow direction of the outer heat exchange medium of heat exchanger tube.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013102329998A CN103278037A (en) | 2013-06-13 | 2013-06-13 | High-efficiency scaling turbolator ring pipe frame and heat exchanger with same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2013102329998A CN103278037A (en) | 2013-06-13 | 2013-06-13 | High-efficiency scaling turbolator ring pipe frame and heat exchanger with same |
Publications (1)
Publication Number | Publication Date |
---|---|
CN103278037A true CN103278037A (en) | 2013-09-04 |
Family
ID=49060627
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2013102329998A Pending CN103278037A (en) | 2013-06-13 | 2013-06-13 | High-efficiency scaling turbolator ring pipe frame and heat exchanger with same |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103278037A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104154795A (en) * | 2013-12-06 | 2014-11-19 | 北京大学工学院包头研究院 | Heat exchange tube and heat exchanger comprising same |
CN108363428A (en) * | 2017-01-26 | 2018-08-03 | 三星电子株式会社 | The controller and equipment of heat management |
CN110571499A (en) * | 2019-11-07 | 2019-12-13 | 深圳市银宝山新科技股份有限公司 | Automobile power battery heat dissipation liquid cooling board |
CN111895817A (en) * | 2020-07-21 | 2020-11-06 | 包头轻工职业技术学院 | Horizontal heat exchanger |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2307277Y (en) * | 1997-06-27 | 1999-02-10 | 李瑞静 | Shell-and-tube heat exchanger |
CN1587882A (en) * | 2004-09-29 | 2005-03-02 | 华南理工大学 | Shell-and-tube heat exchanger of vortx net plate support pipe bundle and its forced heat transfer method |
CN2864552Y (en) * | 2006-01-20 | 2007-01-31 | 江苏中圣高科技产业有限公司 | Spiral baffle high-effective heat exchanger |
CN102095317A (en) * | 2010-12-31 | 2011-06-15 | 上海科米钢管有限公司 | Heat exchange equipment applying straight tube section special heat exchange tubes |
CN102226654A (en) * | 2011-05-05 | 2011-10-26 | 长沙理工大学 | Shell pass insertion-piece-type tube-and-shell heat exchanger |
CN102410758A (en) * | 2011-11-25 | 2012-04-11 | 徐州宇家化工科技有限公司 | Cooler structure |
CN202229655U (en) * | 2011-09-06 | 2012-05-23 | 华南理工大学 | Sugar liquid pre-heater adopting sharp-expansion convergent-divergent pipe of accelerated flow with swirl sheets inserted inside |
-
2013
- 2013-06-13 CN CN2013102329998A patent/CN103278037A/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2307277Y (en) * | 1997-06-27 | 1999-02-10 | 李瑞静 | Shell-and-tube heat exchanger |
CN1587882A (en) * | 2004-09-29 | 2005-03-02 | 华南理工大学 | Shell-and-tube heat exchanger of vortx net plate support pipe bundle and its forced heat transfer method |
CN2864552Y (en) * | 2006-01-20 | 2007-01-31 | 江苏中圣高科技产业有限公司 | Spiral baffle high-effective heat exchanger |
CN102095317A (en) * | 2010-12-31 | 2011-06-15 | 上海科米钢管有限公司 | Heat exchange equipment applying straight tube section special heat exchange tubes |
CN102226654A (en) * | 2011-05-05 | 2011-10-26 | 长沙理工大学 | Shell pass insertion-piece-type tube-and-shell heat exchanger |
CN202229655U (en) * | 2011-09-06 | 2012-05-23 | 华南理工大学 | Sugar liquid pre-heater adopting sharp-expansion convergent-divergent pipe of accelerated flow with swirl sheets inserted inside |
CN102410758A (en) * | 2011-11-25 | 2012-04-11 | 徐州宇家化工科技有限公司 | Cooler structure |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104154795A (en) * | 2013-12-06 | 2014-11-19 | 北京大学工学院包头研究院 | Heat exchange tube and heat exchanger comprising same |
CN104154795B (en) * | 2013-12-06 | 2017-01-18 | 北京大学包头创新研究院 | Heat exchange tube and heat exchanger comprising same |
CN108363428A (en) * | 2017-01-26 | 2018-08-03 | 三星电子株式会社 | The controller and equipment of heat management |
CN108363428B (en) * | 2017-01-26 | 2021-07-27 | 三星电子株式会社 | Controller and equipment for thermal management |
CN110571499A (en) * | 2019-11-07 | 2019-12-13 | 深圳市银宝山新科技股份有限公司 | Automobile power battery heat dissipation liquid cooling board |
CN111895817A (en) * | 2020-07-21 | 2020-11-06 | 包头轻工职业技术学院 | Horizontal heat exchanger |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103954153B (en) | The pure reverse stream pipe shell heat exchanger of multipaths | |
CN103278037A (en) | High-efficiency scaling turbolator ring pipe frame and heat exchanger with same | |
CN106705712A (en) | Pipe shell type heat exchanger | |
CN101696862B (en) | Full welded plate bundle with reinforced structures | |
CN103307619A (en) | Flue gas baffle device inside horizontal waste heat boiler | |
CN203824383U (en) | Multi-path pure countercurrent shell-and-tube heat exchanger | |
CN101182974A (en) | Flow guiding type baffle plate shell pipe type heat exchanger | |
CN203310298U (en) | Vertical type heat recovery heat exchanging device | |
CN104864600B (en) | A kind of all steel heat exchanger | |
CN204255148U (en) | There is the shell-and-tube heat exchanger of annular pass partition | |
CN101995175A (en) | Shell-and-tube heat exchanger | |
CN104457385A (en) | Self-supporting type tube bundle heat exchanger | |
CN204924009U (en) | Heat exchanger scour protection structure | |
CN104567505A (en) | Heat exchange tube, manufacturing method of heat exchange tube, heat exchange module and heat exchanger | |
CN203224152U (en) | Baffle plate type one-way heat exchanger | |
CN201440046U (en) | Direct-exchange heat exchanger for gas heater | |
CN204286157U (en) | A kind of rod baffle heat exchanger | |
CN203364150U (en) | Internal smoke baffle device for horizontal type waste heat boiler | |
CN204594296U (en) | Heat-exchange tube, heat exchange module, heat exchanger | |
CN215864854U (en) | Multi-tube pass heat exchanger front end tube box partition plate arrangement structure | |
CN104534667A (en) | Condensing gas heating water heating furnace heat exchanger | |
CN201032429Y (en) | Combined baffling lever wave node tube heat exchanger | |
CN217503990U (en) | Gasification superheater for skid-mounted methanol hydrogen production device | |
CN106322353A (en) | Plate type low-temperature economizer | |
CN215447539U (en) | Novel corrugated plate type heat exchanger |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130904 |
|
RJ01 | Rejection of invention patent application after publication |