CN209416108U - A kind of wrap-round tubular heat exchanger of unequal spacing - Google Patents
A kind of wrap-round tubular heat exchanger of unequal spacing Download PDFInfo
- Publication number
- CN209416108U CN209416108U CN201821799104.3U CN201821799104U CN209416108U CN 209416108 U CN209416108 U CN 209416108U CN 201821799104 U CN201821799104 U CN 201821799104U CN 209416108 U CN209416108 U CN 209416108U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- tube
- filler strip
- shell
- thickness
- 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
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
A kind of wrap-round tubular heat exchanger of unequal spacing, it include shell, it is arranged in the intracorporal more heat exchanger tubes of shell and first, second tube sheet, the both ends of each heat exchanger tube are limited respectively first, on two tube sheets, and it is located at first, heat exchanger tube between two tube sheets is coiled in outside central tube along the axial screw of shell and forms the multi-layer helix-tube that internal and external partition is nested with, the filler strip of this layer of heat exchanger tube of positioning is provided between adjacent layer helix tube, the vapor phase areas of corresponding shell-side fluid is sequentially formed in shell along axial direction, gas-liquid alpha region and liquid phase region, it is characterized by: the thickness for being located at the filler strip of vapor phase areas is less than the thickness of the filler strip positioned at liquid phase region, and positioned at the thickness design of the filler strip of gas-liquid alpha region at from vapor phase areas to the structure of liquid phase region progressive additive.After adopting the above structure, it can make fluid that there is different flow regimes in the different zones of same layer, the thermal performance of wrap-round tubular heat exchanger can be advanced optimized, meet the requirement of different device heat exchanging device.
Description
Technical field
The utility model relates to a kind of heat exchangers, refer specifically to a kind of wrap-round tubular heat exchanger.
Background technique
Wrap-round tubular heat exchanger is widely used in chemical fertilizer plant, oil plant refining plant etc. greatly because it is efficient, energy saving
In the heat exchange equipments such as medium-sized, mesohigh, which includes shell, central tube, more heat exchanger tubes and is located at
The both ends of first, second tube sheet at heart cylinder both ends, each heat exchanger tube limit on first and second tube sheet, and are located at the first and second pipe
Heat exchanger tube between plate is wrapped in except central tube layer by layer by certain winding angle and forms the multi-layer helical that internal and external partition is nested with
It manages, the filler strip being axially laid with is provided between adjacent layer helix tube, is i.e. the heat exchanger tube of equivalent layer passes through the groove on filler strip and carries out
Then positioning carries out card jail with pipe collar again at required position, finally the both side ends of pipe collar is weldingly fixed on filler strip.
In use, each leading into the fluid of different temperatures in above-mentioned winding type heat exchanger pipe and shell, the two is in relative flow
Carry out heat transmitting in the process to realize the purpose mutually to exchange heat.In reformer, cold flow is the mixing of feedstock oil and recycle hydrogen
After object, with the heat exchange of hot-fluid reaction product, initial liquid phase naphtha is transformed into whole gas phases by cold flow；And hot-fluid reaction product passes through
After heat exchange, liquid phase is become by initial gas phase, enters product separation using cooler cooling and after making wherein oil product condensation
Tank.The hydrogen-containing gas that knockout drum is ejected, a part are used as recycle hydrogen, are mixed again with raw material with after compressor compresses, structure
Face the circulatory system of hydrogen at one.Thus it can be seen that, low pressure, high temperature are to be conducive to entire reforming reaction process, therefore present
In many devices (such as above-mentioned continuous reformer) require heat exchange utensil to have higher heat transfer efficiency and lower pressure
Loss.
According to Nu Saier theory, in two-phase heat transfer segment, flow velocity its heat transfer coefficient is influenced it is smaller, but on pressure drop influence compared with
Greatly；In single-phase heat transfer section, flow velocity has larger impact to pressure drop and heat transfer coefficient, therefore fluid is in different zones (gas phase zone
Domain, gas-liquid alpha region and liquid phase region) there is different heat transfer and mechanical property.Occur to condense for shell side or what is evaporated changes
Hot device, in order to improve the heat transfer efficiency of heat exchanger, the applicant once designed the Heat Exchangers with different tube diameters, as in
State's license notification number is the patent document of CN205679090U, and according to the different operation condition of different fluid, heat exchanger tube can
To use different calibers, and the interlamellar spacing between adjacent layer helix tube can be different.That is, each interlamellar spacing is can to change
, but be identical in the axial direction for same layer interlamellar spacing.Therefore for the shell-side fluid of same layer, how to change
Flow velocity come effectively improve wrap-round tubular heat exchanger heat transfer efficiency and reduce the pressure loss, be always people want solve technology ask
Topic.
Utility model content
For the current state of the art, the technical problem to be solved by the utility model is to provide one kind can be further improved
Heat exchange efficiency, reduce the pressure loss unequal spacing wrap-round tubular heat exchanger.
Technical solution adopted by the utility model to solve the above technical problems is as follows: a kind of winding tubular type of unequal spacing is changed
Hot device includes shell, is arranged in the intracorporal more heat exchanger tubes of shell and the first tube sheet and the second tube sheet, each heat exchanger tube
Both ends are limited respectively on the first and second tube sheet, and the heat exchanger tube between first and second tube sheet is along the axial screw of shell
It is outer and form the multi-layer helix-tube that internal and external partition is nested with to be coiled in central tube, is provided between adjacent layer helix tube and positions the layer and change
The filler strip of heat pipe, interior vapor phase areas, gas-liquid alpha region and the liquid phase that corresponding shell-side fluid is sequentially formed with along axial direction of the shell
Region, it is characterised in that: it is less than the thickness of the filler strip positioned at liquid phase region positioned at the thickness of the filler strip of vapor phase areas, and
Positioned at gas-liquid alpha region the filler strip thickness design at from vapor phase areas to the structure of liquid phase region progressive additive.
In the above scheme, since the property of fluid is related with temperature, i.e., related with position, and in axial same position
The temperature of fluid is essentially identical, it is therefore preferred to, the thickness positioned at the filler strip of vapor phase areas is identical, is located at liquid phase
The thickness of the filler strip in region is also identical, so that each interlamellar spacing in axial same position is identical.
Compared with prior art, due to the utility model gas, liquid region use different-thickness filler strip, that is,
Biggish interlamellar spacing is chosen in liquid phase region, and flow velocity is small at this time, to reduce pressure drop, and influences on heat transfer coefficient less；And in gas
Alpha region then reduces interfloor distance, to improve flow velocity, increases heat transfer coefficient.Therefore using after the utility model, fluid can be made
There is different flow regimes in the different zones of same layer, the thermal performance of wrap-round tubular heat exchanger can be advanced optimized,
Meet the requirement of different device heat exchanging device.
Detailed description of the invention
Fig. 1 is the partial structural diagram of the utility model embodiment.
Fig. 2 is the structural schematic diagram of filler strip.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown in Figure 1, a kind of wrap-round tubular heat exchanger of unequal spacing, include shell 1, be arranged in it is more in shell 1
Root heat exchanger tube 2 and the first tube sheet and the second tube sheet (tube sheet is not shown in the figure), the both ends of each heat exchanger tube 2 are limited respectively
One, on two tube sheets, and the heat exchanger tube between the first and second tube sheet is coiled in outside central tube 3 and shape along the axial screw of shell
The multi-layer helix-tube being nested at internal and external partition in the present embodiment, walks cold flow in shell 1, flow direction by Fig. 1 from left side to the right
Side flowing, and hot-fluid is walked in heat exchanger tube 2, with cold flow reverse flow, corresponding shell side so is sequentially formed with along axial direction in shell 1
Vapor phase areas A, gas-liquid alpha region B and the liquid phase region C of fluid.It is provided between above-mentioned adjacent layer helix tube and positions this layer heat exchange
The filler strip 4 of pipe is less than the filler strip positioned at liquid phase region positioned at the thickness of the filler strip of vapor phase areas for same filler strip
Thickness, and it is located at the filler strip thickness design of gas-liquid alpha region at from vapor phase areas to the structure of liquid phase region progressive additive.Implement
In example, the thickness positioned at the first segment 41 of each filler strip of vapor phase areas is identical, positioned at the third pad section of each filler strip of liquid phase region
43 thickness is also identical, and the thickness of the first segment 41 of each filler strip is less than the thickness of the third section 43 of filler strip.And gas-liquid alpha region
Filler strip 42 thickness design of second segment at by variant structure, that is, from vapor phase areas to the knot of liquid phase region progressive additive
Structure.Using such structure, it can significantly improve the thermal performance of wrap-round tubular heat exchanger.
Claims (3)
- It include shell, setting in the intracorporal more heat exchanger tubes of shell and the 1. a kind of wrap-round tubular heat exchanger of unequal spacing The both ends of one tube sheet and the second tube sheet, each heat exchanger tube are limited respectively on the first and second tube sheet, and are located at described first and second Heat exchanger tube between tube sheet is coiled in outside central tube along the axial screw of shell and forms the multi-layer helix-tube that internal and external partition is nested with, The filler strip of this layer of heat exchanger tube of positioning is provided between adjacent layer helix tube, the shell is interior to be sequentially formed with corresponding shell side along axial direction Vapor phase areas, gas-liquid alpha region and the liquid phase region of fluid, it is characterised in that: the thickness positioned at the filler strip of vapor phase areas is wanted Less than the thickness for the filler strip for being located at liquid phase region, and be located at gas-liquid alpha region the filler strip thickness design at from vapor phase areas To the structure of liquid phase region progressive additive.
- 2. the wrap-round tubular heat exchanger of unequal spacing according to claim 1, it is characterised in that: positioned at each of vapor phase areas The thickness of the filler strip is identical.
- 3. the wrap-round tubular heat exchanger of unequal spacing according to claim 1, it is characterised in that: positioned at each of liquid phase region The thickness of the filler strip is identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821799104.3U CN209416108U (en) | 2018-11-02 | 2018-11-02 | A kind of wrap-round tubular heat exchanger of unequal spacing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821799104.3U CN209416108U (en) | 2018-11-02 | 2018-11-02 | A kind of wrap-round tubular heat exchanger of unequal spacing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209416108U true CN209416108U (en) | 2019-09-20 |
Family
ID=67933140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821799104.3U Active CN209416108U (en) | 2018-11-02 | 2018-11-02 | A kind of wrap-round tubular heat exchanger of unequal spacing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209416108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665419A (en) * | 2020-12-25 | 2021-04-16 | 西安交通大学 | Direct-insertion filler strip type wound tube heat exchanger |
-
2018
- 2018-11-02 CN CN201821799104.3U patent/CN209416108U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112665419A (en) * | 2020-12-25 | 2021-04-16 | 西安交通大学 | Direct-insertion filler strip type wound tube heat exchanger |
| CN112665419B (en) * | 2020-12-25 | 2022-04-05 | 西安交通大学 | Direct-insertion filler strip type wound tube heat exchanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101815919A (en) | Compactness, efficient gas-gas recombination reflux exchanger with liquid intermediate | |
| CN205679090U (en) | There is the Heat Exchangers of different tube diameters | |
| CN101349514A (en) | Internal and external fins intubatton type high temperature heat exchanger | |
| CN103743270B (en) | The heat exchanger that many groups helix tube is nested | |
| WO2014085874A2 (en) | Heat exchangers | |
| CN109405589A (en) | A kind of spherical heat exchanger that two-tube-pass independently exchanges heat | |
| CN209416108U (en) | A kind of wrap-round tubular heat exchanger of unequal spacing | |
| CN103822510A (en) | Multi-shell-pass tube type heat exchanger | |
| CN104896971A (en) | Spiral tubular heat exchanger for reducing tube winding | |
| CN210400120U (en) | Spiral flat pipe with spiral T-shaped fins outside pipe | |
| CN103743269A (en) | Non-isometric double-spiral baffle-plate tube shell heat exchanger | |
| CN201653249U (en) | Dividing wall spiral titanium tube heat exchanger | |
| CN207214870U (en) | Shell-and-tube oil water heat exchange device | |
| CN203893704U (en) | Non-isometric dual helical baffle plate tubular heat exchanger | |
| CN102401597B (en) | Heat transfer tube of heat exchanger and use its heat exchanger | |
| CN203550682U (en) | Multi-medium tube-and-shell heat exchanger | |
| CN101893396B (en) | Quenching boiler provided with enhanced heat transfer member | |
| CN105403079A (en) | Energy-saving radiator with liner tubes and staggered type finned tubes and radiating method | |
| CN205209299U (en) | Casing heat exchanger | |
| CN201246893Y (en) | Secondary heat exchanger for gas water heater | |
| CN203605761U (en) | Heat exchanger with multiple groups of embedded spiral pipes | |
| CN102116592A (en) | Air energy non-metal heat exchanger | |
| CN207422952U (en) | A kind of heat exchanger of Combined type belt heating arrangements | |
| CN207649173U (en) | A kind of microchannel tubing heat exchanger | |
| CN205245566U (en) | Heat dissipation formula heat exchanger for heat pump water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315207 Jiaochuan Street Refining Road, Zhenhai District, Ningbo City, Zhejiang Province Patentee after: Zhenhai Petrochemical Construction and Installation Engineering Co.,Ltd. Address before: 315207 Jiaochuan Street Refining Road, Zhenhai District, Ningbo City, Zhejiang Province Patentee before: ZHENHAI PETROCHEMICAL JIANAN ENGINEERING Co.,Ltd. |