CN209512335U - A kind of New Refrigerating flooded evaporator - Google Patents
A kind of New Refrigerating flooded evaporator Download PDFInfo
- Publication number
- CN209512335U CN209512335U CN201822113015.5U CN201822113015U CN209512335U CN 209512335 U CN209512335 U CN 209512335U CN 201822113015 U CN201822113015 U CN 201822113015U CN 209512335 U CN209512335 U CN 209512335U
- Authority
- CN
- China
- Prior art keywords
- tube
- heat exchange
- dimensional structure
- exchange copper
- structure changes
- 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
Abstract
The utility model discloses a kind of New Refrigerating flooded evaporators, including shell, chilled water import, water retaining separater, left tube sheet, left diversion box, three-dimensional structure changes heat exchange copper tube, right tube plate, right header tank, chilled water outlet, refrigerant inlet, refrigerant gas outlet, superheater tube and Steel net；The three-dimensional structure changes heat exchange copper tube matrix arrangement of enclosure interior constitutes three-dimensional structure changes heat exchange copper tube beam, it is separately mounted on left tube sheet and right tube plate, to be connected to left diversion box and right header tank, gap between each three-dimensional structure changes heat exchange copper tube constitutes the shell side channel of refrigerant flowing, and each three-dimensional structure changes heat exchange copper tube lumen constitutes the tube side channel of chilled water flowing.The utility model sheet by using self supporting structure three-dimensional structure changes heat exchange copper tube, heat exchange efficiency is improved, the baffle plate of traditional flooded evaporator is eliminated, is allowed to more compact structure, heat exchanger shell volume is reduced, have the advantages that energy conservation, section material and reduces refrigerant charge.
Description
Technical field
The utility model relates to refrigeration technology fields, and in particular to a kind of New Refrigerating flooded evaporator.
Background technique
Evaporator is the core heat exchange equipment in cooling/heating pump installation, according to the difference of cooled medium type, evaporator
The cold evaporator of water (liquid) and wind-cooled evaporator can be divided into.According to the difference of feed liquid way, dry type, full-liquid type and falling film type can be divided into
Evaporator etc..
Flooded evaporator is usually used in large and medium-sized refrigeration unit, is the important heat exchange equipment in refrigeration system, performance
Quality, many influence will be generated on the efficiency of refrigeration unit.Currently, heat exchanger tube used in flooded evaporator is round steams
Hair pipe, although by changes of pipe outer wall surface texture can increase vaporization nucleus calculation in evaporation process and quickening bubble from
It goes the time, but liquid phase turbulence intensity and raising heat convection rate can not be increased on cast.
Therefore, it is necessary to develop the more excellent novel flooded evaporator of performance.
Utility model content
In view of the above-mentioned problems, the present invention provides a kind of New Refrigerating flooded evaporator, heat-exchanging tube bundle relies on pipeline
The sags and crests of itself contact with each other, and play the role of self-supporting, do not need baffle plate, can effectively solve traditional baffle plate full-liquid type and steam
The drawbacks of sending out device.
To achieve the above object, the technical solution of the utility model are as follows:
A kind of New Refrigerating flooded evaporator has two tube sides and a shell side, including shell, chilled water import, gear
Water partition, left tube sheet, left diversion box, three-dimensional structure changes heat exchange copper tube, right tube plate, right header tank, chilled water outlet, refrigerant into
Liquid mouth, refrigerant gas outlet, superheater tube and Steel net；
Left diversion box is located at shell left end and is spaced by left tube sheet with enclosure interior, and right header tank is located at shell right end
And be spaced by right tube plate and enclosure interior, water retaining separater is located in left diversion box, and left diversion box is divided into and is separated by up and down
Two chambers, chilled water import is connected to left diversion box lower chamber, and chilled water outlet is connected to left diversion box upper chamber,
Refrigerant inlet is connected to by two root canal roads of left and right with housing bottom, and refrigerant gas outlet is connected to case top, superheater tube
It is more, top, Steel net are arranged above superheater tube inside housings for tiling；
Three-dimensional structure changes heat exchange copper tube is more, and permutation and combination at three-dimensional structure changes heat exchange copper tube beam, install respectively by both ends
Gap structure on left tube sheet and right tube plate, to be connected to left diversion box and right header tank, between each three-dimensional structure changes heat exchange copper tube
At the shell side channel that refrigerant flows, each three-dimensional structure changes heat exchange copper tube lumen constitutes the tube side channel of chilled water flowing.
The cooling flooded evaporator of the utility model, using three-dimensional structure changes heat exchange copper tube beam, shell-side flow path is transversal
Face is generated shell-side fluid and is separated with rotation and periodic logistics and be mixed into main feature along tube bank longitudinal periodicity variation
Strong disturbance.Tube side fluid flow velocity also can be improved simultaneously, increase the convective heat-transfer coefficient of tube side side liquid, to increase entire full
The overall heat-transfer coefficient of solution type evaporator.Under identical refrigerating capacity, the quantity or heat exchange area of heat exchanger tube can be reduced, and can be reduced
Shell volume makes its more compact structure, is finally reached entire flooded evaporator energy conservation, section material and reduces refrigerant charge
Purpose.Without baffle plate in shell, flow dead zone is not present in shell side, is conducive to refrigerant vapour/liquid and is spread along shell-side flow path,
To achieve the purpose that sufficiently to conduct heat.Top one row's heat exchanger tube of setting is as superheater tube inside housings, to reach gasification refrigeration
The purposes of the drop carried in agent steam, meanwhile, the degree of superheat for keeping refrigerant certain is conducive to mentioning for refrigeration unit performance
It rises.Steel net is arranged in top inside housings, can reach elimination drop, prevents refrigerant vapour band liquid from entering refrigerant suction
Purpose in pipe.
Further, the three-dimensional structure changes heat exchange copper tube is formed by round evaporation copper through helically twisted, adjacent
Three-dimensional structure changes heat exchange copper tube contacts with each other to form self supporting structure at maximum variable diameter salient point.Self supporting structure can effectively avoid
Because chilled water and refrigerant flow rates it is excessive caused by vibration and noise.The outer liquid phase boiling bubble of pipe can also be reduced simultaneously and rise punching
Tube bundle vibration caused by heat exchanger tube is hit, heat exchanger tube can lure that lateral displacement occurs for bubble into the case where providing lesser rising resistance,
Increase the time of contact of tube wall and bubble, so that heat transfer boundary layer is destroyed, the heat convection of the outer liquid phase of reinforced pipe.
Further, the three-dimensional structure changes heat exchange copper tube beam is by more three-dimensional structure changes heat exchange copper tubes by positive triangle
The form stringing that shape, square or square turn 45 degree of angles is arranged in a combination.Three-dimensional structure changes heat exchange copper tube beam is compact-sized,
Be conducive to reduce heat exchanger shell diameter, reduce shell side liquid phase charging amount.
It further, further include a plurality of band being distributed along the three-dimensional structure changes heat exchange copper tube axially spaced-apart, it is described
Three-dimensional structure changes heat exchange copper tube beam tied up with band.To cancel the baffle plate in traditional flooded evaporator, can effectively mention
Chilled water flow velocity has the function that improve tube side heat transfer coefficient without shaking in high tube side.
It further, further include the multiple support plates being distributed along the three-dimensional structure changes heat exchange copper tube axially spaced-apart, branch
Fagging is equipped with the supported hole to match with the three-dimensional structure changes heat exchange copper tube area of beam shape.Support plate embraces entire three-dimensional
Structure changes heat exchange copper tube beam, without as the round heat exchanger tube perforation on traditional baffle plate.
Further, the Steel net is multiple layer metal silk structure.The drop in refrigerant vapour can be effectively eliminated,
Prevent refrigerant vapour band liquid from entering in refrigerant suction pipe.
Compared with prior art, the utility model has the beneficial effects that
1. the cooling flooded evaporator of the utility model is combining the excellent of typical circular evaporation tube surface porosity
While gesture, change its heat exchanger tube cast to cancel baffle plate, obtains the cramped construction of gridding self-supporting between Guan Yuguan, contracting
Small heat exchanger shell volume reduces refrigerant charge.
2. the cooling flooded evaporator of the utility model, heat-exchanging tube bundle is self supporting structure, and arrangement mode can be
Equilateral triangle, square, square turn the diversified forms stringings such as 45 degree of angles, square, square and turn the diversified forms such as 45 degree of angles
Stringing, every root canal is arranged with identical helix direction of rotation, and ties up fixation with band, polygonal in being axially formed for tube bank
The abrasion of the axial multichannel of degree again without baffle plate, between no exchanger tubes and tubesheets.
3. three-dimensional structure changes heat exchange copper tube both ends round tube section girth is identical as the helix-deformed pipe section girth in middle section,
Since middle section deformation tube area of section opposite end round tube reduces 30-70%, so that the gas that phase transformation generates in tube bank space has
Bigger overall flow space reduces gas phase and rises resistance；Tube fluid speed is also improved simultaneously, enhances in pipe and passes
Heat.
4. interbank do not set baffle plate, one is arranged in the case top confined space and is drained through heat pipe as superheater, to reach
The purposes of the drop carried in vaporised refrigerant steam, superheater tube equally use three-dimensional structure changes heat exchange copper tube, self-supporting knot
Structure effectively reduces superheater volume, takes full advantage of shell space, and be easily installed.
Detailed description of the invention
Fig. 1 is the main view floor map of the cooling flooded evaporator of the utility model；
Fig. 2 is the diagrammatic cross-section of the cooling flooded evaporator of the utility model；
Description of symbols: 1- shell；2- chilled water import；3- water retaining separater；The left tube sheet of 4-；The left diversion box of 5-；6- tri-
Tie up structure changes heat exchange copper tube；7- right tube plate；The right header tank of 8-；9- chilled water outlet；10- refrigerant inlet；11- refrigerant goes out
Port；12- support plate；13- band；14- superheater tube；15- Steel net.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
As depicted in figs. 1 and 2, a kind of New Refrigerating flooded evaporator has two tube sides and a shell side, including shell
1, chilled water import 2, water retaining separater 3, left tube sheet 4, left diversion box 5, three-dimensional structure changes heat exchange copper tube 6, right tube plate 7, the right side are catchmented
Case 8, chilled water outlet 9, refrigerant air inlet 10, refrigerant liquid outlet 11, support plate 12, band 13, superheater tube 14 and steel wire
Strainer 15.
Left diversion box 5 is located at 1 left end of shell and by being spaced inside left tube sheet 4 and shell 1, and right header tank 8 is located at shell
1 right end of body and by being spaced inside right tube plate 7 and shell 1, water retaining separater 3 is located in left diversion box 5, and by left diversion box 5
It is divided into the two chambers being separated by up and down, chilled water import 2 is connected to left 5 lower chamber of diversion box, chilled water outlet 9 and Zuo Fenshui
The connection of 5 upper chamber of case, refrigerant inlet 10 are connected to by two root canal roads of left and right with 1 bottom of shell, refrigerant gas outlet 11
It is connected to at the top of shell 1.Superheater tube 14 is laid on shell 1 in a row using the three-dimensional structure changes heat exchange copper tube of self supporting structure
Inner upper, close to refrigerant gas outlet 11, to reach the purposes of the drop carried in vaporised refrigerant steam, meanwhile, it keeps
The certain degree of superheat of refrigerant, is conducive to the promotion of refrigeration unit performance.Steel net 15 is located at the top of superheater tube 14, inside has
Multiple layer metal silk when guttiferous refrigerant vapour passes through, can effectively eliminate drop, prevent refrigerant vapour band liquid from entering system
In cryogen air intake duct.
Three-dimensional structure changes heat exchange copper tube 6 is more, turns the form stringing at 45 degree of angles by equilateral triangle, square or square
Permutation and combination, to constitute three-dimensional structure changes heat exchange copper tube beam, three-dimensional structure changes heat exchange copper tube beam both ends are separately mounted to left tube sheet 4
On right tube plate 7, to be connected to left diversion box 5 and right header tank 8, the gap between each three-dimensional structure changes heat exchange copper tube 6 constitutes system
The shell side channel of cryogen flowing, each 6 lumen of three-dimensional structure changes heat exchange copper tube constitute the tube side channel of chilled water flowing.Three-dimensional becomes knot
Structure heat exchange copper tube 6 is formed by round evaporation copper through helically twisted, and adjacent three-dimensional structure changes heat exchange copper tube 6 is in maximum variable-diameter convex
Point at contact with each other to form self supporting structure, can avoid because chilled water and refrigerant flow rates it is excessive caused by vibration and noise.
Three-dimensional structure changes heat exchange copper tube beam is supported by multiple support plates 12, while tying up fixation by multiple groups band 13.
Support plate 12 entirely embraces three-dimensional structure changes heat exchange copper tube beam, without as the round heat exchanger tube perforation on traditional baffle plate.Pass through
Support plate 12 and band 13 replace the baffle plate of conventional flooded evaporator, can effectively improve in tube side chilled water flow velocity without sending out
Raw vibration has the function that improve tube side heat transfer coefficient, while Pipe bundle structure can be made compact, and it is straight to be conducive to reduction heat exchanger shell
Diameter reduces shell side liquid phase charging amount.
The helical structure of three-dimensional structure changes heat exchange copper tube 6, since its cast constantly changes, bubble is connect when rising with tube wall
Touching will receive horizontal force, the rebound generated when reducing bubble impact tube wall, and along with lateral displacement, this transverse shifting
The time of contact for increasing bubble and tube wall enhances bubble for the perturbation action of liquid phase, destroys nearly wall boundary layer, simultaneously
Larger resistance will not be generated to bubble uphill process.Most bubbles can be intended to gap maximum between pipe, sky between these pipes
Gap maximum then forms the rising passway of gas in the vertical direction, greatly reduces the induction vibration that bubbles strike tube bank generates
It is dynamic.
The operational process of the cooling flooded evaporator of the utility model is illustrated below:
The chilled water of air-conditioning system flows into the left diversion box 5 of flooded evaporator from chilled water import 2, through water retaining separater 3
After liquid separation, flows successively through left tube sheet 4, is located at water retaining separater 3 three-dimensional structure changes heat exchange copper tube 6 (the first tube side), right pipe below
Plate 7, right header tank 8 go out positioned at the three-dimensional structure changes heat exchange copper tube 6 (the second tube side) of 3 or more water retaining separater, finally from chilled water
Mouth 9 flows out, and completes the heat exchange in flooded evaporator, and the chilled water after being cooled down is re-fed into air-conditioning system end work
Refrigeration is used.
The refrigerant flowed out from refrigeration unit condenser becomes the refrigerant liquid of low-temp low-pressure after throttling set throttles
Body flows into the shell 1 between left tube sheet 4 and right tube plate 7 by refrigerant inlet 10, in flooded evaporator, with three
Chilled water in dimension structure changes heat exchange copper tube 6 exchanges heat, and after heat absorption flashes to guttiferous refrigerant gas, flows through shell 1
After the superheater tube 14 of inner upper, the drop in refrigerant is by further heat absorption evaporation, then after the filtering of Steel net 15, freezes
Drop in agent is thoroughly removed, and is most flowed out afterwards through refrigerant gas outlet 11, and compressor is sucked.
Above-listed detailed description is illustrating for the utility model possible embodiments, and the embodiment is not to limit
The scope of the patents of the utility model, all equivalence enforcements or change without departing from carried out by the utility model, is intended to be limited solely by this case
In the scope of the patents.
Claims (6)
1. a kind of New Refrigerating flooded evaporator, there is two tube sides and a shell side, it is characterised in that: including shell (1), cold
Freeze water inlet (2), water retaining separater (3), left tube sheet (4), left diversion box (5), three-dimensional structure changes heat exchange copper tube (6), right tube plate
(7), right header tank (8), chilled water outlet (9), refrigerant inlet (10), refrigerant gas outlet (11), superheater tube (14) and
Steel net (15)；
Left diversion box (5) is located at shell (1) left end and by being spaced inside left tube sheet (4) and shell (1), right header tank (8)
Positioned at shell (1) right end and by being spaced inside right tube plate (7) and shell (1), water retaining separater (3) is located at left diversion box (5)
In, and left diversion box (5) is divided into the two chambers being separated by up and down, chilled water import (2) and left diversion box (5) lower chamber connect
Logical, chilled water outlet (9) is connected to left diversion box (5) upper chamber, and refrigerant inlet (10) is connected to shell (1) bottom,
It is connected at the top of refrigerant gas outlet (11) and shell (1), superheater tube (14) is more, is laid in shell (1) inner upper, steel wire
Strainer (15) setting is above superheater tube (14)；
Three-dimensional structure changes heat exchange copper tube (6) is more, and at three-dimensional structure changes heat exchange copper tube beam, both ends are separately mounted to permutation and combination
On left tube sheet (4) and right tube plate (7), to be connected to left diversion box (5) and right header tank (8), each three-dimensional structure changes heat exchange copper tube (6)
Between gap constitute refrigerant flowing shell side channel, it is each three-dimensional structure changes heat exchange copper tube (6) lumen constitute chilled water flowing
Tube side channel.
2. a kind of New Refrigerating flooded evaporator according to claim 1, it is characterised in that: three-dimensional become is tied
Structure heat exchange copper tube (6) is formed by round evaporation copper through helically twisted, and adjacent three-dimensional structure changes heat exchange copper tube (6) becomes in maximum
It contacts with each other to form self supporting structure at diameter salient point.
3. a kind of New Refrigerating flooded evaporator according to claim 2, it is characterised in that: three-dimensional become is tied
Structure heat exchange copper tube beam is to turn 45 degree of angles by equilateral triangle, square or square by more three-dimensional structure changes heat exchange copper tubes (6)
Form stringing is arranged in a combination.
4. a kind of New Refrigerating flooded evaporator according to claim 1, it is characterised in that: further include along described
The a plurality of band (13) of three-dimensional structure changes heat exchange copper tube (6) axially spaced-apart distribution, the three-dimensional structure changes heat exchange copper tube beam are used
Band (13) is tied up.
5. a kind of New Refrigerating flooded evaporator according to claim 1, it is characterised in that: further include along described
Multiple support plates (12) of three-dimensional structure changes heat exchange copper tube (6) axially spaced-apart distribution, support plate (12) are equipped with and the three-dimensional
The supported hole that structure changes heat exchange copper tube area of beam shape matches.
6. a kind of New Refrigerating flooded evaporator according to claim 1, it is characterised in that: the Steel net
It (15) is multiple layer metal silk structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822113015.5U CN209512335U (en) | 2018-12-14 | 2018-12-14 | A kind of New Refrigerating flooded evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822113015.5U CN209512335U (en) | 2018-12-14 | 2018-12-14 | A kind of New Refrigerating flooded evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209512335U true CN209512335U (en) | 2019-10-18 |
Family
ID=68195091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822113015.5U Active CN209512335U (en) | 2018-12-14 | 2018-12-14 | A kind of New Refrigerating flooded evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209512335U (en) |
-
2018
- 2018-12-14 CN CN201822113015.5U patent/CN209512335U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201203306Y (en) | Condenser with gas baffle plate | |
| CN103808185B (en) | A kind of efficient heat-exchanging pipe and evaporative condenser thereof | |
| CN2924457Y (en) | Intermittent spiral oval coiled-tube evaporating condensator | |
| CN104990315A (en) | Efficient condenser | |
| CN203224070U (en) | Liquid pouring type heat exchanger | |
| CN108721926A (en) | A kind of Falling Film Evaporator of Horizontal Tube | |
| CN204154153U (en) | A kind of longitude and latitude staggered pipe heat exchanger | |
| CN104390495B (en) | A kind of Overcold condensing heat exchanger and heat-exchange method thereof | |
| CN104214995B (en) | A kind of immersion diaphragm type heat exchanger | |
| CN203163354U (en) | Parallel flow evaporative condenser | |
| CN111006534A (en) | Tube nest soaking type cooling system | |
| CN104296424B (en) | Heat exchanger | |
| CN209341634U (en) | A kind of cooling pure reverse flow dry evaporator | |
| CN209512335U (en) | A kind of New Refrigerating flooded evaporator | |
| CN209512337U (en) | A kind of New Refrigerating condenser | |
| CN206131815U (en) | Hydraulic filling formula shell and tube heat exchanger and have its air conditioner | |
| CN201803532U (en) | Case and sleeve combined type film thinning condenser | |
| CN208475741U (en) | A kind of novel air source heat pump | |
| CN201803533U (en) | Shell-and-tube falling film condenser | |
| CN109813153A (en) | A kind of dry pipe shell type heat exchanger improving refrigerant feed liquid distribution | |
| CN209054625U (en) | Buffer tank | |
| CN104819605B (en) | Flooded evaporator | |
| JPS5826519B2 (en) | Red-bellied woodpecker | |
| CN105020942B (en) | A kind of more package full-liquid type heat exchangers | |
| CN208887174U (en) | A kind of vertical full-liquid type shell-tube evaporator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |