CN208887174U - A kind of vertical full-liquid type shell-tube evaporator - Google Patents
A kind of vertical full-liquid type shell-tube evaporator Download PDFInfo
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- CN208887174U CN208887174U CN201821741912.4U CN201821741912U CN208887174U CN 208887174 U CN208887174 U CN 208887174U CN 201821741912 U CN201821741912 U CN 201821741912U CN 208887174 U CN208887174 U CN 208887174U
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Abstract
The utility model provides a kind of vertical full-liquid type shell-tube evaporator, which solve existing horizontal flooded evaporator refrigerant irrigation amount is larger, higher cost, housing bottom is easy oil accumulation, the technical problem of heat transfer effect difference, it is equipped with cylinder shell and housing cavity, case top is equipped with upper cover, housing bottom is equipped with lower head, shell and upper cover, lower head forms enclosure space, heat exchanger tube is equipped in shell, lower head bottom is equipped with liquid refrigerant import, gaseous refrigerant is equipped at the top of upper cover to export, what housing cavity was walked is water, what is walked in heat exchanger tube is refrigerant；Shell is equipped with inlet and outlet, several baffle plates are equipped in shell, and the width of baffle plate is less than diameter of the housing, and heat exchanger tube passes through baffle plate and is immobilized in the shell by baffle plate, and impingement baffle and baffle are additionally provided in shell.The utility model is compact-sized, easy to operate, cost is relatively low, heat transfer effect is preferable, can be widely applied in refrigeration system.
Description
Technical field
The utility model relates to vaporizer technology fields, and in particular to a kind of vertical full-liquid type shell-tube evaporator.
Background technique
Evaporator is one of capital equipment of refrigeration system, and efficient evaporator is conducive to improve the work of entire refrigeration system
Make performance.For shell and tube evaporator, evaporator is mainly divided into dry type and full-liquid type, and flooded evaporator is due to surface
Heat transfer coefficient is big, good effect of heat exchange and be applied；Existing flooded evaporator is divided into horizontal and vertical, horizontal full-liquid type steaming again
It is relatively more to send out device application.
Existing horizontal flooded evaporator, what general refrigerant was walked is shell side, and what refrigerating medium was walked is tube side, needs to make
Cryogen irrigation amount is larger, and for the freon refrigerant of price costly, this disadvantage is just more prominent；And when pump machine stops
When operating, refrigerant liquid continues to evaporate after termination of pumping, and the water of tube side is less to be easy to freeze, and destroys heat exchanger tube.It is general sleeping
Formula flooded evaporator shell side gas-phase space is bigger, and gas flow rate is very slow, and lower part of the housing is easy to oil accumulation, it is necessary to have reliable
Otherwise oil return measure influences the safe operation of system.It is influenced by shell inner refrigerant liquid-column height, housing cavity bottom
Evaporating temperature is higher, can reduce the heat transfer temperature difference of evaporator, and evaporating temperature is lower, and this influence is bigger.Liquid refrigerant stream
Speed is higher, shorter with refrigerating medium time of contact, influences heat exchange efficiency.
Utility model content
The utility model larger, higher cost, housing bottom aiming at existing flooded evaporator refrigerant irrigation amount
Be easy the poor technical problem of oil accumulation, heat transfer effect, provide it is a kind of it is compact-sized, easy to operate, cost is relatively low, good effect of heat exchange
Vertical full-liquid type shell-tube evaporator.
In order to solve the above technical problems, the utility model is equipped with cylinder shell and housing cavity thus, case top is set
There is upper cover, housing bottom is equipped with lower head, and shell and upper cover, lower head form enclosure space, be equipped with heat exchanger tube in shell,
Lower head bottom is equipped with liquid refrigerant import, is equipped with gaseous refrigerant at the top of upper cover and exports, what housing cavity was walked is water, is changed
What is walked in heat pipe is refrigerant；Shell is equipped with inlet and outlet, and water inlet and water outlet are connected with housing cavity, shell
Interior to be equipped with several baffle plates, the width of baffle plate is less than diameter of the housing, and heat exchanger tube passes through baffle plate and consolidated by baffle plate
It is scheduled in shell；Impingement baffle and baffle are additionally provided in shell, impingement baffle is arranged in liquid refrigerant import and heat exchanger tube input end
Between, baffle plate setting exports between heat transfer tube outlet end in gaseous refrigerant.
Preferably, water inlet is arranged on the downside of shell, and water outlet is arranged on the upside of shell.
Preferably, baffle plate is circle arched structure, and baffle plate is arranged between the horizontal plane where inlet and outlet,
Baffle plate is fixed at case inside perpendicular to shell central axes.
Preferably, number of heat exchange tubes is multiple, is arranged in parallel between each other.
Preferably, heat exchanger tube is according to triangular arrangement, corner triangular arrangement, rectangular arrangement, corner rectangular arrangement or same
Heart circle arrangement composition tube bank.
Preferably, baffle is disk-shaped structure.
Preferably, inlet and outlet are equipped with temp probe.
The utility model is compact-sized, easy to operate, and what refrigerant was walked is tube side, refrigerant charge be it is horizontal very
One of, cost is relatively low；And the utility model refrigerant gas, in in-tube evaporation, gas flow rate is than very fast, easy handle
Oil takes back compressor；Refrigerating medium flows in shell, and flow is larger, and heat exchanger tube is difficult to freeze.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of the utility model；
Fig. 2 is the utility model overlooking structure diagram；
Fig. 3 is the structural schematic diagram of the utility model heat exchanger tube arrangement one；
Fig. 4 is the structural schematic diagram of the utility model heat exchanger tube arrangement two；
Fig. 5 is the structural schematic diagram of the utility model heat exchanger tube arrangement three.
Sign flag illustrates in figure:
1. shell；2. housing cavity；3. upper cover；4. lower head；5. liquid refrigerant import；6. gaseous refrigerant goes out
Mouthful；7. water inlet；8. water outlet；9. heat exchanger tube；10. baffle plate；11. impingement baffle；12. baffle；13. temp probe.
Specific embodiment
Specific embodiment of the present utility model is described in detail with reference to the accompanying drawings.
As shown in Figure 1 and Figure 2, the utility model provides a kind of vertical full-liquid type shell-tube evaporator, is equipped with cylinder shell
1 and housing cavity 2, upper cover 3 and lower head 4 are located at the top and bottom end of shell 1, upper cover 3, lower head 4 and shell 1
Form closed space.The bottom centre of lower head 4 is equipped with liquid refrigerant import 5, and the top center of upper cover 3 is equipped with gaseous state
Freon outlet 6.Water inlet 7 and water outlet 8 are equipped on the left of shell 1, water inlet 7 and water outlet 8 are connected with housing cavity 2, into
The mouth of a river 7 is located at 1 downside of shell, is arranged close to lower head 4；Water outlet 8 is located at 1 upside of shell, is arranged close to upper cover 3；Water is logical
It crosses water inlet 7 and enters housing cavity 2, be discharged after heat exchange by water outlet 8；8 outlet end of 7 input end of water inlet and water outlet
It is equipped with temp probe, fluid temperature detection can be carried out, to guarantee the heat transfer effect of evaporator.
Multiple straight tube-like heat exchanger tubes 9 are arranged in parallel in shell 1, heat exchanger tube 9 is parallel to the setting of 1 central axes of shell；Shell 1
Inside is fixedly installed multiple baffle plates 10, and baffle plate 10 is dome-shaped plate structure, and the setting of baffle plate 10 is in water inlet 7 and goes out
It is vertical with heat exchanger tube 9 between horizontal plane where the mouth of a river 8.Heat exchanger tube 9 passes through baffle plate 10, and fixed by baffle plate 10
In shell 1, the width of baffle plate 10 is less than 1 diameter of shell；Baffle plate can reduce the flow velocity of housing cavity water, increase water with
The time of contact of heat exchanger tube, to increase heat transfer effect.Heat exchanger tube 9 is in shell 1 there are many arrangements, such as Fig. 3-Fig. 5 institute
Show, lists arrangement of three kinds of heat exchanger tubes 9 in shell 1, but the arrangement of heat exchanger tube 9 is not limited to these three arrangements
Mode, heat exchanger tube 9 can be according to triangular arrangement, corner triangular arrangement, rectangular arrangement, corner rectangular arrangement or concentric circles cloth
The mode of setting arranges composition tube bank.
Liquid refrigerant is entered in heat exchanger tube 9 by liquid refrigerant import 5, and evaporation absorbs shell inside heat exchanger tube 9
The heat of 2 water of intracoelomic cavity becomes gaseous state by 6 discharge of gaseous refrigerant outlet, enters in compressor and utilize after heat exchange；Due to
What the utility model refrigerant was walked is heat exchanger tube 9, changes and exchanges heat in shell side because of refrigerant, and shell side space is larger, gas stream
The shortcomings that speed is very slow, low temperature bad oil return, since refrigerant is the evaporation that exchanges heat in heat exchanger tube 9, gas flow rate is very fast, is easy handle
Lubricating oil brings back in compressor and uses.
Impingement baffle 11 and baffle 12 are additionally provided in shell 1, impingement baffle 11 and baffle 12 are disk-shaped structure, impingement baffle 11
It is arranged between 9 input end of liquid refrigerant import 5 and heat exchanger tube, the setting of baffle 12 is in gaseous refrigerant outlet 6 and heat exchanger tube 9
Between outlet end.When liquid refrigerant enters in shell 1, what is contacted first is impingement baffle 11, since liquid refrigerant is initial
Flow velocity is higher, by the barrier action of impingement baffle 11, can reduce the initial flow rate of liquid refrigerant, guarantees that refrigerant can be with
More uniform flow velocity enters in heat exchanger tube 9, while extending heat-exchange time of the refrigerant liquid in heat exchanger tube 9, increases and changes
The thermal efficiency.Gaseous refrigerant can prevent the liquid refrigerating not evaporated under the barrier effect of baffle 12 after heat exchange
Agent takes heat exchanger tube out of by gaseous refrigerant.
Liquid refrigerant is entered in evaporator by liquid refrigerant import 5 in refrigeration system, in the resistance of impingement baffle 11
Under gear effect, liquid refrigerant flow velocity is reduced, then into the heat exchanger tube 9 in shell 1.Recirculated water in housing cavity 2
Entered by water inlet 7, the refrigerant in heat exchanger tube 9 exchanges heat with the water in housing cavity 2, flashes to gaseous refrigerant
By 6 discharge of gaseous refrigerant outlet, enters in refrigeration system compressor and utilize；And in housing cavity 2 after heat exchange
Water is discharged by water outlet 8, is so recycled, the heat exchange work being evaporated between device shell side and tube side.
Only as described above, only specific embodiment of the utility model, when the utility model cannot be limited with this
The range of implementation, therefore the displacement of its equivalent assemblies, or according to equivalent changes and modifications made by the utility model patent protection scope,
It should still belong to the scope that the utility model claims book is covered.
Claims (7)
1. a kind of vertical full-liquid type shell-tube evaporator, is equipped with cylinder shell and housing cavity, the case top is equipped with upper
End socket, the housing bottom are equipped with lower head, and the shell and upper cover, lower head form enclosure space, set in the shell
There is heat exchanger tube, it is characterised in that the lower head bottom is equipped with liquid refrigerant import, is equipped with gaseous state system at the top of the upper cover
Cryogen outlet, what the housing cavity was walked is water, and what is walked in the heat exchanger tube is refrigerant；The shell be equipped with water inlet and
Water outlet, the water inlet and water outlet are connected with the housing cavity, several baffle plates, the folding are equipped in the shell
The width of flowing plate is less than diameter of the housing, and the heat exchanger tube passes through baffle plate and is immobilized in the shell by baffle plate；The shell
It is additionally provided with impingement baffle and baffle in vivo, the impingement baffle is arranged between the liquid refrigerant import and heat exchanger tube input end,
The baffle plate setting exports between heat transfer tube outlet end in the gaseous refrigerant.
2. a kind of vertical full-liquid type shell-tube evaporator according to claim 1, it is characterised in that the water inlet setting exists
On the downside of shell, the water outlet is arranged on the upside of shell.
3. a kind of vertical full-liquid type shell-tube evaporator according to claim 2, it is characterised in that the baffle plate is circular arch
Shape structure, the baffle plate are arranged between the horizontal plane where inlet and outlet, and the baffle plate is perpendicular in shell
Axis is fixed at case inside.
4. a kind of vertical full-liquid type shell-tube evaporator according to claim 1, it is characterised in that the number of heat exchange tubes is
It is multiple, it is arranged in parallel between each other.
5. a kind of vertical full-liquid type shell-tube evaporator according to claim 4, it is characterised in that the heat exchanger tube is according to three
Angular arrangement, corner triangular arrangement, rectangular arrangement, corner rectangular arrangement or arranged in concentric circles composition tube bank.
6. a kind of vertical full-liquid type shell-tube evaporator according to claim 1, it is characterised in that the baffle is disk-shaped
Structure.
7. a kind of vertical full-liquid type shell-tube evaporator according to claim 1, it is characterised in that the water inlet and water outlet
Mouth is equipped with temp probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741912.4U CN208887174U (en) | 2018-10-25 | 2018-10-25 | A kind of vertical full-liquid type shell-tube evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821741912.4U CN208887174U (en) | 2018-10-25 | 2018-10-25 | A kind of vertical full-liquid type shell-tube evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208887174U true CN208887174U (en) | 2019-05-21 |
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ID=66517113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821741912.4U Active CN208887174U (en) | 2018-10-25 | 2018-10-25 | A kind of vertical full-liquid type shell-tube evaporator |
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| CN (1) | CN208887174U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112556243A (en) * | 2020-12-24 | 2021-03-26 | 胡淳 | Blowing-sucking shell and tube heat exchanger |
| CN114151996A (en) * | 2020-09-04 | 2022-03-08 | 约克（无锡）空调冷冻设备有限公司 | Condensing unit reaches refrigerating system including it |
-
2018
- 2018-10-25 CN CN201821741912.4U patent/CN208887174U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114151996A (en) * | 2020-09-04 | 2022-03-08 | 约克（无锡）空调冷冻设备有限公司 | Condensing unit reaches refrigerating system including it |
| CN112556243A (en) * | 2020-12-24 | 2021-03-26 | 胡淳 | Blowing-sucking shell and tube heat exchanger |
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