CN109595970A - Helical baffles and heat exchanger - Google Patents
Helical baffles and heat exchanger Download PDFInfo
- Publication number
- CN109595970A CN109595970A CN201811623518.5A CN201811623518A CN109595970A CN 109595970 A CN109595970 A CN 109595970A CN 201811623518 A CN201811623518 A CN 201811623518A CN 109595970 A CN109595970 A CN 109595970A
- Authority
- CN
- China
- Prior art keywords
- core pipe
- slot
- block
- helical baffles
- locating
- 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
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 12
- 239000012530 fluid Substances 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical group OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 1
- LOMVENUNSWAXEN-UHFFFAOYSA-N Methyl oxalate Chemical compound COC(=O)C(=O)OC LOMVENUNSWAXEN-UHFFFAOYSA-N 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/24—Arrangements for promoting turbulent flow of heat-exchange media, e.g. by plates
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
The invention discloses a kind of helical baffles and heat exchangers.The helical baffles include the baffling component of at least two grafting, each baffling component includes the left core pipe and right core pipe in semi-cylindrical, the cambered surface of the left core pipe and right core pipe is provided with the baffle unit extended along the hand of spiral, the upper surface setting of the baffle unit is fluted, the lower end surface of the baffle unit is provided with the convex block for being caught in groove, the both ends of the left core pipe are respectively arranged with left fixture block and left card slot, the both ends of the right core pipe are respectively arranged with right fixture block and right card slot, the left fixture block and right fixture block are spliced to form grafting block, the left card slot and right card slot are spliced to form inserting groove, the grafting block is provided with external screw thread and is threadedly connected in inserting groove.It is passed through the invention has the benefit that the helical baffles can reduce fluid from the gap of baffle unit, enhances heat-transfer effect.
Description
Technical field
The present invention relates to heat exchange equipment, in particular to a kind of helical baffles and heat exchanger.
Background technique
In the production process for steaming method production Hydrogenation of Dimethyl Oxalate catalyst using ammonia, heat exchanger is vital life
Produce equipment.Baffle plate is one of production accessory of heat exchanger, plays the role of raising heat-transfer effect, supports tube bank.
The Chinese patent of Publication No. CN104949566A discloses a kind of helical baffles.The helical baffles include extremely
Few two spiral baffling plate units, spiral baffling plate unit includes the core pipe for two semi-cylindricals being connected, at least one core
The arc surface of pipe is equipped with the baffle plate extended along the hand of spiral.Two neighboring spiral baffling plate unit is by grafting convex block and patches
The cooperation plug connection of slot.
But because two neighboring spiral baffling plate unit passes through plug connection, two neighboring helical baffles list
It is easy between the baffle plate of member being mutually connected there are gap, flows the gap Shi Huicong on helical baffles so as to cause fluid and wear
It crosses, influences heat-transfer effect, have much room for improvement.
Summary of the invention
The object of the present invention is to provide a kind of helical baffles.The helical baffles can reduce fluid from baffle unit
Gap passes through, and enhances heat-transfer effect.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of helical baffles, the baffling component including at least two grafting, each baffling component include in semi-cylindrical
Left core pipe and right core pipe, the cambered surface of the left core pipe and right core pipe is provided with the baffle unit extended along the hand of spiral, institute
The upper surface setting for stating baffle unit is fluted, and the lower end surface of the baffle unit is provided with the convex block for being caught in groove, institute
The both ends for stating left core pipe are respectively arranged with left fixture block and left card slot, and the both ends of the right core pipe are respectively arranged with right fixture block and right card
Slot, the left fixture block and right fixture block are spliced to form grafting block, and the left card slot and right card slot are spliced to form inserting groove, the grafting
Block is provided with external screw thread and is threadedly connected in inserting groove.
It is utilized by using above-mentioned technical proposal compared to the mode of the baffle unit abutting of two neighboring baffling component
The cooperation of groove and convex block can reduce fluid between baffle unit between the baffle unit of adjacent two each baffling component
Gap passes through, and enhances heat-transfer effect.Using the threaded connection between grafting block and inserting groove, to both realize two neighboring baffling group
Part is fixedly connected, and can be realized the engaging of groove and convex block.The left core pipe and right core pipe of each baffling component can be along
The in-plane being close to perpendicular to left core pipe and right core pipe can be easily separated, and after two neighboring baffling component is completed, it is recessed
The cooperation of slot and convex block can prevent the left core pipe of two neighboring baffling component and right core pipe while separate, to avoid because of left core
Pipe and the separation of right core pipe cause the gap between baffle unit to increase, and enhance heat-transfer effect.
The present invention is further arranged to: being respectively arranged with left mounting groove and right installation among the left core pipe and right core pipe
Slot, the left mounting groove and right mounting groove are spliced into the locating slot in multilateral shape, and abutting positioning is provided in the locating slot
Slot and the locating rod that can be slided along locating slot, the left mounting groove is extended to through left projection and is connected to left card slot, described
Right mounting groove is extended to through right projection and is connected to right card slot, and the locating rod is connected with for preventing locating rod along positioning
The locating part of slot sliding, when two baffling modular connectors, the grafting block of one of baffling component is inserted into another baffling group
After the grafting block of part, wherein a locating rod abuts another locating rod and another locating rod is driven to slide along locating slot.
By using above-mentioned technical proposal, it is assumed that after the connection of two baffling components, the locating rod of first baffling component and
The locating rod of second baffling component abuts.Drive the locating rod of second baffling component along the positioning of second baffling component
Slot is mobile, then the locating rod of second component can drive the locating rod of first baffling component to determine along first baffling component
Position slot is mobile, and the locating rod of second baffling component is inserted into the locating slot of first baffling component.At this point, second baffling
Component can not be rotated relative to first baffling component, therefore realize the fixation of the first baffling component and the second baffling component.It is changing
In the use process of hot device, due to baffle unit different, different baffling component meetings by the effect of fluid of different baffling components
Generate the trend of relative rotation.Because being threadedly coupled between different baffling components, if opposite rotation occurs for different components
Turn, will lead to distance between different baffling components and increase.And in heat exchanger, the position between different baffling components is exchanged heat again
Device other assemblies are fixed.At this point, the screw thread of different baffling components is easy to produce mill if not set locating rod and locating slot
Damage.And the cooperation of locating rod and locating slot can prevent the relative rotation of different baffling components, to reduce different baffling components
Thread abrasion.
The present invention is further arranged to: the locating part includes the spring being installed in inserting groove, one end of the spring
It is fixedly connected with the inner wall of inserting groove, the other end is connect with locating rod.
By using above-mentioned technical proposal, spring plays the role of reset locating rod and moves rear position along locating slot.
The present invention is further arranged to: there are two spring settings, two springs respectively with left core pipe and right core
Pipe connects and is connected to the opposite two sides of locating rod.
By using above-mentioned technical proposal, on the one hand two springs can increase the stress equalization of locating rod, another
Aspect can be such that left core pipe and right core pipe is acted on by locating rod, to increase the difficulty of left core pipe and the separation of right core pipe, subtract
Gap between few baffle unit increases.
The present invention is further arranged to: the inserting groove slot bottom is provided with the holding tank for accommodating spring, the receiving
Slot is connected to inserting groove and is connected to locating slot.
By using above-mentioned technical proposal, if not set holding tank, after locating rod is moved along locating slot, spring can be sent out
Give birth to elastic deformation and as locating rod enters locating slot.And after holding tank is set, after locating rod is moved along locating slot, spring
It need to only be moved in holding tank, without entering locating slot.
The present invention is further arranged to: the left core pipe is provided with link slot and link block, and the right core pipe is also equipped with
The link block of link slot and link block, the left core pipe is caught in the link slot of right core pipe, and the link block of the right core pipe is caught in
In the link slot of left core pipe.
By using above-mentioned technical proposal, the setting of link block and link slot can be avoided left core pipe and right core pipe along a left side
Core pipe and right core pipe are separated along the plane that left core pipe and right core pipe are close to.
Another goal of the invention of the present invention is to provide a kind of heat exchanger, including the first tube sheet, the second tube sheet and as above-mentioned
Helical baffles, first tube sheet and the second tube sheet are connected to the both ends of helical baffles, and first tube sheet is close
The side of helical baffles is provided with the first mounting blocks, and second tube sheet is provided with the second peace close to the side of helical baffles
Block is filled, first mounting blocks are threadedly connected in the inserting groove of helical baffles one end, and the first mounting blocks connection is useful
In the drive block for driving corresponding locating rod to move along locating slot, the section of the drive block is the inscribed circle in locating rod section,
Second mounting blocks are provided with the assembling be inserted into and be threadedly coupled with grafting block for the grafting block of the helical baffles other end
Slot, the slot bottom of the assembling grove are provided with the fixing groove for locating rod insertion.
In conclusion the invention has the following advantages:
The helical baffles can reduce fluid and pass through from the gap of baffle unit, enhance heat-transfer effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the enlarged drawing of a-quadrant in Fig. 1；
Fig. 3 is the enlarged drawing of B area in Fig. 1；
Fig. 4 be the embodiment of the present invention 1 in left core pipe and right core pipe assembling after overlook direction structural schematic diagram；
Fig. 5 is the structural schematic diagram of left core pipe and right core pipe assembling layback apparent direction in the embodiment of the present invention 1；
Fig. 6 is the structural schematic diagram of the discrete state of left core pipe and right core pipe in the embodiment of the present invention 1；
Fig. 7 is the structural schematic diagram of the embodiment of the present invention 2；
Fig. 8 is the structural schematic diagram of the first tube sheet, the first mounting blocks and drive block in the embodiment of the present invention 2；
Fig. 9 is the structural schematic diagram of the second tube sheet and the second mounting blocks in the embodiment of the present invention 2.
Appended drawing reference: 1, left core pipe；2, right core pipe；3, baffle unit；4, groove；5, convex block；6, left fixture block；7, Zuo Ka
Slot；8, right fixture block；9, right card slot；10, grafting block；11, inserting groove；12, link slot；13, link block；14, left mounting groove；15,
Right mounting groove；16, locating slot；17, locating rod；18, spring；19, holding tank；20, the first tube sheet；21, the second tube sheet；22, spiral shell
Revolve baffle plate；23, the first mounting blocks；24, the second mounting blocks；25, drive block；26, assembling grove；27, fixing groove.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
Embodiment 1
Referring to Fig.1-6, a kind of helical baffles 22, the baffling component including at least two grafting.Each baffling component is including being in
The left core pipe 1 and right core pipe 2 of semi-cylindrical.The cambered surface of left core pipe 1 and right core pipe 2 is provided with the baffling extended along the hand of spiral
Hole of the unit 3(baffle unit 3 for heat exchanger tube to intert is not shown).The upper surface setting fluted 4 of baffling component.Baffling component
Lower end surface be provided with the convex block 5 for being caught in groove 4.The side abutted compared to the baffle unit 3 of two neighboring baffling component
Formula can reduce fluid from baffling list using the cooperation of groove 4 and convex block 5 between the baffle unit 3 of adjacent two each baffling component
Gap between member 3 passes through, and enhances heat-transfer effect.The left core pipe 1 and right core pipe 2 of each baffling component can be along perpendicular to a left sides
The in-plane that core pipe 1 and right core pipe 2 are close to can be easily separated, and after two neighboring baffling component is completed, groove 4 and convex
The cooperation of block 5 can prevent the left core pipe 1 of two neighboring baffling component and right core pipe 2 while separate, to avoid because of left core pipe 1
And the right separation of core pipe 2 causes the gap between baffle unit 3 to increase, and enhances heat-transfer effect.
The both ends of left core pipe 1 are respectively arranged with left fixture block 6 and left card slot 7, and the both ends of right core pipe 2 are respectively arranged with right fixture block
8 and right card slot 9.Left fixture block 6 and right fixture block 8 are spliced to form grafting block 10, and left card slot 7 and right card slot 9 are spliced to form inserting groove 11.
Grafting block 10 is provided with external screw thread, and inserting groove 11 is provided with internal screw thread, so grafting block 10 is threadedly connected to inserting groove 11 just
It is interior.Using the threaded connection between grafting block 10 and inserting groove 11, thus both realized being fixedly connected for two neighboring baffling component,
It can be realized the engaging of groove 4 and convex block 5 again.The plane of left core pipe 1 is provided with link slot 12 and link block 13, right core pipe 2
Plane is provided with link slot 12 and link block 13.The link block 13 of left core pipe 1 is caught in the link slot 12 of right core pipe 2, right core pipe 2
Link block 13 be caught in the link slot 12 of left core pipe 1.The setting of link block 13 and link slot 12 can be avoided left core pipe 1 and the right side
Core pipe 2 is separated along left core pipe 1 and right core pipe 2 along the plane that left core pipe 1 and right core pipe 2 are close to.The plane of left core pipe 1
The left mounting groove 14 being provided between link slot 12 and link block 13.The plane of right core pipe 2 is provided with positioned at link slot 12
With the right mounting groove 15 of link block 13.Left mounting groove 14 and right mounting groove 15 form the locating slot 16 of square shape after splicing.It is fixed
The locating rod 17 being close to locating slot 16 and can sliding along locating slot 16 is provided in the slot 16 of position.Left mounting groove 14, which extends to, to be run through
Left projection 5 is simultaneously connected to left card slot 7, and right mounting groove 15 is extended to through right projection 5 and is connected to right card slot 9.Assuming that two foldings
After flowing component connection, the locating rod 17 of the locating rod 17 of first baffling component and second baffling component is abutted.Driving second
The locating rod 17 of a baffling component is moved along the locating slot 16 of second baffling component, then 17 meeting of locating rod of second component
The locating rod 17 of first baffling component is driven to move along the locating slot 16 of first baffling component, and second baffling component
Locating rod 17 be inserted into first baffling component locating slot 16 in.At this point, second baffling component can not be rolled over respect to first
Component rotation is flowed, therefore realizes the fixation of the first baffling component and the second baffling component.In the use process of heat exchanger, due to
The baffle unit 3 of different baffling components is different by the effect of fluid, and different baffling components can generate the trend of relative rotation.Cause
It is threadedly coupled between different baffling components, so will lead to different baffling components if relative rotation occurs for different components
Between distance increase.And in heat exchanger, the position between different baffling components is fixed by heat exchanger other assemblies again.This
When, if not set locating rod 17 and locating slot 16, the screw thread of different baffling components is easy to produce abrasion.And locating rod 17 and fixed
The cooperation of position slot 16 can prevent the relative rotation of different baffling components, to reduce the thread abrasion of different baffling components.
There are two springs 18 for setting in inserting groove 11.Two springs 18 connect with the inner wall of left card slot 7 and right card slot 9 respectively
It connects.Two springs 18 connect with locating rod 17 and are connected to the opposite two sides of locating rod 17.Spring 18 plays reset locating rod
17 move the effect of rear position along locating slot 16.On the one hand stress that two springs 18 can increase locating rod 17 is equal
On the other hand weighing apparatus can be such that left core pipe 1 and right core pipe 2 is acted on by locating rod 17, to increase left core pipe 1 and right core pipe 2
Isolated difficulty, the gap reduced between baffle unit 3 increase.The slot bottom of inserting groove 11 is provided with the appearance for accommodating spring 18
Receive slot 19.Holding tank 19 is connected to inserting groove 11 and is connected to locating slot 16.If not set holding tank 19, when locating rod 17 along
After locating slot 16 is mobile, spring 18 can occur elastic deformation and as locating rod 17 enters locating slot 16.And holding tank 19 is set
Afterwards, after locating rod 17 is moved along locating slot 16, spring 18 need to only move in holding tank 19, without entering locating slot
16。
Embodiment 2
Referring to 7-9, a kind of heat exchanger, the hole interted including first the first tube sheet of tube sheet 20(20 for heat exchanger tube is not shown), the
Hole of two the second tube sheets of tube sheet 21(21 for heat exchanger tube to intert is not shown) and helical baffles as described in Example 1 22.The
One tube sheet 20 and the second tube sheet 21 are connected to the both ends of helical baffles 22.First tube sheet 20 is close to helical baffles 22
Side is provided with the first mounting blocks 23, and the second tube sheet 21 is provided with the second mounting blocks 24 close to the side of helical baffles 22.The
One mounting blocks 23 are threadedly connected in the inserting groove 11 of 22 one end of helical baffles.First mounting blocks 23 are connected with for driving pair
The drive block 25 for answering locating rod 17 to move along locating slot 16, the section of drive block 25 are the inscribed circle in 17 section of locating rod.The
Two mounting blocks 24 are provided with the group be inserted into and be threadedly coupled with grafting block 10 for the grafting block 10 of 22 other end of helical baffles
Tankage 26, the slot bottom of assembling grove 26 are provided with the fixing groove 27 being inserted into for locating rod 17.
The present embodiment is only explanation of the invention, is not limitation of the present invention, and those skilled in the art exist
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in the present invention
Scope of the claims in all by the protection of Patent Law.
Claims (7)
1. a kind of helical baffles (22), the baffling component including at least two grafting, each baffling component include in half
The cambered surface of columned left core pipe (1) and right core pipe (2), the left core pipe (1) and right core pipe (2) is provided with along the hand of spiral
The baffle unit (3) of extension, it is characterized in that: fluted (4) are arranged in the upper surface of the baffle unit (3), the baffle unit
(3) lower end surface is provided with the convex block (5) for being caught in groove (4), and the both ends of the left core pipe (1) are respectively arranged with left fixture block
(6) and left card slot (7), the both ends of the right core pipe (2) are respectively arranged with right fixture block (8) and right card slot (9), the left fixture block
(6) it being spliced to form grafting block (10) with right fixture block (8), the left card slot (7) and right card slot (9) are spliced to form inserting groove (11),
The grafting block (10) is provided with external screw thread and is threadedly connected in inserting groove (11).
2. helical baffles (22) according to claim 1, it is characterized in that: the left core pipe (1) and right core pipe (2) are intermediate
It is respectively arranged with left mounting groove (14) and right mounting groove (15), the left mounting groove (14) and right mounting groove (15) are spliced into more
The locating slot (16) of side shape is provided in the locating slot (16) and is close to locating slot (16) and can slide along locating slot (16)
Locating rod (17), the left mounting groove (14) extends to through left projection (5) and is connected to left card slot (7), the right installation
Slot (15) is extended to through right projection (5) and is connected to right card slot (9), and the locating rod (17) is connected with for preventing locating rod
(17) locating part slided along locating slot (16), when two baffling modular connectors, the grafting block of one of baffling component
(10) after being inserted into the grafting block (10) of another baffling component, wherein a locating rod (17) abuts another locating rod (17) simultaneously
Another locating rod (17) is driven to slide along locating slot (16).
3. helical baffles (22) according to claim 2, it is characterized in that: the locating part includes being installed on inserting groove
(11) one end of the spring (18) in, the spring (18) is fixedly connected with the inner wall of inserting groove (11), the other end and locating rod
(17) it connects.
4. helical baffles (22) according to claim 3, it is characterized in that: there are two the spring (18) settings, two
The spring (18) connect with left core pipe (1) and right core pipe (2) respectively and is connected to the opposite two sides of locating rod (17).
5. helical baffles (22) according to claim 4, it is characterized in that: the inserting groove (11) slot bottom is provided with and is used for
The holding tank (19) of spring (18) is accommodated, the holding tank (19) is connected to inserting groove (11) and is connected to locating slot (16).
6. helical baffles (22) according to claim 1, it is characterized in that: the left core pipe (1) is provided with link slot
(12) and link block (13), the right core pipe (2) are also equipped with link slot (12) and link block (13), the left core pipe (1)
Link block (13) is caught in the link slot (12) of right core pipe (2), and the link block (13) of the right core pipe (2) is caught in left core pipe (1)
Link slot (12) in.
7. a kind of heat exchanger, it is characterized in that: including the first tube sheet (20), the second tube sheet (21) and such as claim 1-6 any one
Helical baffles (22) described in, first tube sheet (20) and the second tube sheet (21) are connected to helical baffles (22)
Both ends, first tube sheet (20) is provided with the first mounting blocks (23) close to the side of helical baffles (22), described second
Tube sheet (21) is provided with the second mounting blocks (24) close to the side of helical baffles (22), and the first mounting blocks (23) screw thread connects
It is connected in the inserting groove (11) of helical baffles (22) one end, first mounting blocks (23) are connected with for driving corresponding positioning
Bar (17) drive block (25) mobile along locating slot (16), the section of the drive block (25) are the interior of locating rod (17) section
Circle is connect, second mounting blocks (24) are provided with grafting block (10) insertion for helical baffles (22) other end and and grafting
The assembling grove (26) that block (10) is threadedly coupled, the slot bottom of the assembling grove (26) are provided with the fixation for locating rod (17) insertion
Slot (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623518.5A CN109595970A (en) | 2018-12-28 | 2018-12-28 | Helical baffles and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623518.5A CN109595970A (en) | 2018-12-28 | 2018-12-28 | Helical baffles and heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109595970A true CN109595970A (en) | 2019-04-09 |
Family
ID=65963881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811623518.5A Pending CN109595970A (en) | 2018-12-28 | 2018-12-28 | Helical baffles and heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109595970A (en) |
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|---|---|---|---|---|
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| CN101598508A (en) * | 2008-10-08 | 2009-12-09 | 大庆市天能波纹管制造有限公司 | Tube bundle of heat exchanger of spiral diversion plate |
| CN201309880Y (en) * | 2008-11-14 | 2009-09-16 | 浙江德安新技术发展有限公司 | Screw extrusion type sludge dewatering machine |
| CN102102961A (en) * | 2009-12-16 | 2011-06-22 | 北京化工大学 | Self rotation type rotor connection structure in heat exchange tube |
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| CN202582341U (en) * | 2012-04-24 | 2012-12-05 | 江苏扬安集团扬州一万制冷设备有限公司 | Spiral baffle with sealing edge |
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| CN203615810U (en) * | 2013-11-27 | 2014-05-28 | 南京金典制冷实业有限公司 | Spiral baffle plate used for dry-type evaporator and assembly thereof |
| CN104949566A (en) * | 2014-03-31 | 2015-09-30 | 杭州赛富特设备有限公司 | Helical baffle and tube shell heat exchanger thereof |
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| CN207412842U (en) * | 2017-10-16 | 2018-05-29 | 芜湖美的厨卫电器制造有限公司 | Filter core and filter plant |
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