CN206131424U - Crisscross spiral baffling plate electric heater - Google Patents
Crisscross spiral baffling plate electric heater Download PDFInfo
- Publication number
- CN206131424U CN206131424U CN201621133117.8U CN201621133117U CN206131424U CN 206131424 U CN206131424 U CN 206131424U CN 201621133117 U CN201621133117 U CN 201621133117U CN 206131424 U CN206131424 U CN 206131424U
- Authority
- CN
- China
- Prior art keywords
- electric heater
- cylinder
- plate
- barrel
- formula electric
- 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.)
- Active
Links
Landscapes
- Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
Abstract
The utility model relates to an electric heater belongs to the electrical heating field. The utility model discloses a crisscross spiral baffling plate electric heater, including barrel and a plurality of electrothermal tube, the water inlet is seted up to barrel one end, and the delivery port is seted up to the other end, and the one end of every electrothermal tube is all passed the tube sheet and is collectd at the control box, and the other end all passes the setting and is in the through -hole of the inside a plurality of baffling boards of barrel, the port of barrel is provided with the flange, and through the flange with the tube sheet is fixed be in the same place, the crisscross setting of per two adjacent baffling boards is on the barrel inner wall, and per two baffling boards of being separated by are the heliciform setting, thereby forming two criss -cross fluid helical coiled passage in the barrel, is the cross angle of per two adjacent baffling boards 30 degrees 60 the degree. The utility model discloses an electric heater has the heating efficiency height, and the flow resistance is low, and anti fouling tendency is good, advantages such as long service life.
Description
Technical field
This utility model is related to electric heater, and in particular to a kind of overlap helical baffles formula electric heater.
Background technology
Under the Policy Background for currently encouraging energy-saving and emission-reduction energetically, electric heater is due to power savings advantages, progressively substituting
Traditional combustion heating, its development potentiality is very huge.Therefore electric heater heat transfer property is improved, pressure drop and heat loss is reduced
Become the emphasis of current electric heater development.Existing electric heater pattern has bushing type electric heater and baffle plate type electrical heating
Device etc., bushing type electric heater pressure drop is little, but heat transfer efficiency is relatively low, and easy fouling, treating capacity is less；Baffle plate type electric heater master
Pattern is wanted to be segmental baffle, this simple structure, low cost, heat transfer coefficient is higher, applied range, but there is flow dead,
Flow resistance and pressure drop are larger, easy fouling, the shortcomings of be susceptible to tube bundle vibration.For high viscosity oil medium, using arch
Deflection plate mobility is worse, easily causes electric heater tube surface scale, substantially reduces heat transfer efficiency, shortens electric heating tube and uses
Life-span.
Utility model content
This utility model provides a kind of overlap helical baffles formula electric heater, solves existing electric heater heat transfer
Efficiency is low, the problem that service life is short.
This utility model can be achieved through the following technical solutions：
A kind of overlap helical baffles formula electric heater, including cylinder and multiple electrothermal tubes, described cylinder one end open up into
The mouth of a river, the other end opens up outlet, and one end of each electrothermal tube both passes through tube sheet and collects in control chamber, and the other end both passes through setting
In the through hole of the multiple deflection plates of the inner barrel, the port of the cylinder is provided with flange, is fixed on by flange and tube sheet
Together, the adjacent deflection plate of each two is crisscross arranged on cylinder inboard wall, and the deflection plate that each two is separated by is arranged in the shape of a spiral, from
And the fluid spiral passage of two intersections is formed in the cylinder.
Further, the stagger angle of the adjacent deflection plate of each two is 30 degree of -60 degree.
Further, upside one end of the cylinder opens up water inlet, and the other end opens up outlet.
Further, four deflection plates are set in each pitch of the fluid spiral passage, the deflection plate is four/
One fan-shaped plan plate, in the edge of a quarter fan-shaped plan plate tie rod hole is opened up, and each pull bar one end is fixed
On the tube sheet, the other end both passes through the tie rod hole of the same position on multiple deflection plates, solid by square lock washer and nut
It is scheduled on outside last deflection plate, is supported by thimble between the adjacent deflection plate of each two on same pull bar,
Each thimble is enclosed within pull bar, and equal length and diameter of bore are not less than the pull bar bore dia.
Further, the electrothermal tube is U-shaped electrothermal tube.
Further, the cylinder downside is welded with saddle, and the saddle is used to support whole cylinder.
This utility model is beneficial to be had technical effect that：
Overlap helical baffles formula electric heater of the present utility model forms two fluids using the deflection plate staggeredly built
Helical duct, with higher heat transfer coefficient, substantially without flow dead, more preferably, pressure drop is little, is less prone to tube bank and shakes for mobility
It is dynamic, but for high viscosity oil medium, substantially, less scaling, long service life, apparatus structure is closed practical effect
Reason, the efficiency of heating surface is high, and flow resistance is low, the advantages of scaling property can be good.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is operation principle schematic diagram of the present utility model；
Fig. 3 is the installation enlarged diagram of pull bar of the present utility model and thimble；
Fig. 4 is deflection plate schematic diagram of the present utility model；
Wherein, 1- cylinders, 2- flanges, 3- tube sheets, 4- electrothermal tubes, 5- control chambers, 6- saddles, 7- deflection plates, 8- water inlets,
9- outlets, 10- pull bars, 11- thimbles, 12- side's lock washer, 13- nuts, 14- tie rod holes, 15- through holes.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail with specific embodiment.
As shown in figure 1, the electric heater includes cylinder 1, flange 2, tube sheet 3, electrothermal tube 4, control chamber 5, saddle 6, baffling
Plate 7, pull bar 10, thimble 11, square lock washer 12 and nut 13.Water inlet 8 is opened up in the upside one end of cylinder 1, the other end is opened
The mouth of a river 9 is set out, the downside of cylinder 1 is welded with two saddles 6, and saddle 6 is used to support whole cylinder 1；The port welded flange 2 of cylinder 1,
Flange 2 and tube sheet 3 are fixed together by securing member, and the one end of electrothermal tube 4 both passes through the through hole of tube sheet 3 and collects in control chamber 5, and
Fixed with tube sheet 3 by welding, the other end both passes through the through hole 15 for being arranged on the multiple deflection plates 7 in the inside of cylinder 4, and each two is adjacent
Deflection plate be crisscross arranged on cylinder inboard wall, stagger angle is 30 degree of -60 degree, and the deflection plate that each two is separated by sets in the shape of a spiral
Put, so as to the fluid spiral passage for forming two intersections in the cylinder.
Four deflection plates 7 are set in each pitch of fluid spiral passage, and each deflection plate 7 is 1/4 fan-shaped plan plate,
As shown in figure 4, opening up tie rod hole 14 at three end points positions of 1/4 fan-shaped plan plate, inside offers substantial amounts of through hole 15, uses
In fixed electrothermal tube 4；Depending on size of the position and pull bar quantity of tie rod hole according to the diameter of cylinder, and quantity is not less than 3；
But as shown in figure 3, each one end of pull bar 10 is each attached on tube sheet 3, the other end both passes through the same position on multiple deflection plates 7
Tie rod hole 14, be fixed on last deflection plate with nut 13 by square lock washer 12, it is every on same pull bar 10
Supported by thimble 11 between two adjacent deflection plates 7, the thimble 11 of each is enclosed within pull bar 10, length phase
Deng and diameter of bore be not less than pull bar bore dia.
Its operation principle and advantage are illustrated with reference to Fig. 2：Preferably the arrangement of deflection plate 7 should be continuous helical curve
Face.But, spiral camber processing difficulties, and electrothermal tube 4 is also relatively difficult to achieve with the cooperation of deflection plate 7.In view of in processing
It is convenient, staggeredly overlapped using a series of fan-shaped plan plate (referred to as helical baffles), approximate helical face is formed on the inside of cylinder
(in general, a pitch takes 4 pieces of deflection plates), and then two fluid spiral passages are formed, produce a fluid inside approximate
Continuous helical shape flows.According to fluid properties and the difference for the treatment of capacity, spiral angle can be adjusted according to practical situation.
Staggeredly overlap than lap connection due to many helical ducts, with higher heat transfer coefficient, substantially without flowing
Dead band, more preferably, pressure drop is little, is less prone to tube bundle vibration for mobility, though structure is more complicated than arch, high cost, for high viscosity
For oil product medium, practical effect is obvious, less scaling, long service life.
Medium continuous and stable helical flow in housing, it is to avoid the pressure loss that horizontal baffling is produced；In same pressure
Fall, velocity of medium can be greatly improved, increase medium heat-transfer ability；Compare with horizontal baffling mode, there is no delay dead band,
While heat transfer coefficient is improved, dirt deposition is reduced, reduce thermal resistance, improve film heat transfer coefficient, greatly reduce equipment cleaning time
Number, increases the service life.
Although the foregoing describing specific embodiment of the present utility model, it will be appreciated by those of skill in the art that
These are merely illustrative of, and on the premise of without departing substantially from principle of the present utility model and essence, these embodiments can be done
Go out various changes or modifications, therefore, protection domain of the present utility model is defined by the appended claims.
Claims (6)
1. a kind of overlap helical baffles formula electric heater, including cylinder and multiple electrothermal tubes, described cylinder one end is opened up into water
Mouthful, the other end opens up outlet, and one end of each electrothermal tube both passes through tube sheet and collects in control chamber, and the other end is both passed through and is arranged on
The through hole of the multiple deflection plates of the inner barrel, it is characterised in that：The port of the cylinder is provided with flange, by flange and pipe
Plate is fixed together, and the adjacent deflection plate of each two is crisscross arranged on cylinder inboard wall, and the deflection plate that each two is separated by is helically
Shape is arranged, so as to the fluid spiral passage for forming two intersections in the cylinder.
2. overlap helical baffles formula electric heater according to claim 1, it is characterised in that：Adjacent described of each two
The stagger angle of deflection plate is 30 degree of -60 degree.
3. overlap helical baffles formula electric heater according to claim 1, it is characterised in that：The upside one of the cylinder
End opens up water inlet, and the other end opens up outlet.
4. overlap helical baffles formula electric heater according to claim 1, it is characterised in that：The fluid spiral passage
Each pitch in four deflection plates are set, the deflection plate is a quarter fan-shaped plan plate, fan-shaped in a quarter
The edge of surface plate opens up tie rod hole, and each pull bar one end is each attached on the tube sheet, and the other end both passes through multiple foldings
The tie rod hole of the same position on stream plate, is fixed on outside last deflection plate by square lock washer and nut, in same drawing
Supported by thimble between the adjacent deflection plate of each two on bar, each thimble is enclosed within pull bar, length phase
Deng and diameter of bore be not less than the pull bar bore dia.
5. the overlap helical baffles formula electric heater according to one of claim 1-4, it is characterised in that：The electrothermal tube
For U-shaped electrothermal tube.
6. overlap helical baffles formula electric heater according to claim 5, it is characterised in that：Cylinder downside welding
There is saddle, the saddle is used to support whole cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621133117.8U CN206131424U (en) | 2016-10-18 | 2016-10-18 | Crisscross spiral baffling plate electric heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621133117.8U CN206131424U (en) | 2016-10-18 | 2016-10-18 | Crisscross spiral baffling plate electric heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206131424U true CN206131424U (en) | 2017-04-26 |
Family
ID=58573825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621133117.8U Active CN206131424U (en) | 2016-10-18 | 2016-10-18 | Crisscross spiral baffling plate electric heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206131424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405396A (en) * | 2021-06-18 | 2021-09-17 | 华中科技大学 | Continuous spiral baffling substrate, device for processing same and heat exchanger |
-
2016
- 2016-10-18 CN CN201621133117.8U patent/CN206131424U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405396A (en) * | 2021-06-18 | 2021-09-17 | 华中科技大学 | Continuous spiral baffling substrate, device for processing same and heat exchanger |
| CN113405396B (en) * | 2021-06-18 | 2024-04-19 | 华中科技大学 | Continuous spiral baffling substrate, device for processing same and heat exchanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100434858C (en) | Combined multi-shell spiral baffle plate shell-and-tube heat exchanger | |
| CN203443416U (en) | Shell and tube heat exchanger | |
| CN205909716U (en) | High -efficient shell and tube heat exchanger | |
| CN201032431Y (en) | Curved arch-shaped baffle plate shell-pipe type heat exchanger | |
| CN106440865A (en) | Shell-and-tube heat exchanger with rotating baffle plates | |
| CN206094996U (en) | Shell -and -tube heat exchanger | |
| CN205102643U (en) | Overlap joint formula triple helical baffling board heat exchanger | |
| CN204421697U (en) | A kind of imitative labyrinth shape baffle shell-and-tube heat exchanger | |
| CN109579573A (en) | A kind of spiral lattice board shell-and-tube heat exchanger | |
| CN206131424U (en) | Crisscross spiral baffling plate electric heater | |
| CN203837550U (en) | Discontinuous and bi-directional warping type heat exchange tube | |
| CN203893704U (en) | Non-isometric dual helical baffle plate tubular heat exchanger | |
| CN210689299U (en) | Efficient energy-saving tubular heat exchanger | |
| CN204388661U (en) | A kind of efficient fixed coil heat exchanger | |
| CN105605951A (en) | Novel variable-cross-section twisted tube heat exchanger | |
| CN202582340U (en) | Heat exchanger of a baffle plate core group | |
| CN104457385A (en) | Self-supporting type tube bundle heat exchanger | |
| CN108519007A (en) | A kind of self-supporting double helix finned tube exchanger | |
| CN102878830A (en) | Shell-and-tube heat exchanger provided with blade type clapboards | |
| CN204268924U (en) | A kind of tube bank sleeve pipe fixing hole plate supporting type heat exchanger | |
| CN210051209U (en) | Spiral baffle plate corrugated pipe heat exchanger for liquid food sterilization | |
| CN206469743U (en) | A kind of Novel spiral distorts waved tube heat exchanger | |
| CN207439216U (en) | A kind of oblique stream heat exchanger of flaabellum shape | |
| CN202793095U (en) | Modified pitch heat exchanger | |
| CN205784782U (en) | A kind of self-support type ripple straight tube heat-exchanging tube bundle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |