CN203744607U - Double-tube-pass dry type evaporator and refrigeration equipment - Google Patents
Double-tube-pass dry type evaporator and refrigeration equipment Download PDFInfo
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- CN203744607U CN203744607U CN201420018615.2U CN201420018615U CN203744607U CN 203744607 U CN203744607 U CN 203744607U CN 201420018615 U CN201420018615 U CN 201420018615U CN 203744607 U CN203744607 U CN 203744607U
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- tube
- radiating tube
- backhaul
- capping
- radiating
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Abstract
The utility model provides a double-tube-pass dry type evaporator and refrigeration equipment. The double-tube-pass dry type evaporator comprises a shell, a secondary refrigerant inlet, a secondary refrigerant outlet, a refrigerant inlet and a refrigerant outlet are formed in the shell, a plurality of radiating tube assemblies are arranged in the shell, and each radiating tube assembly comprises an inlet stroke radiating tube, a return stroke radiating tube and a capillary tube. The inlet stroke radiating tubes are connected with the return stroke radiating tubes through the capillary tubes to form a U-type structure, the inlet stroke radiating tubes are in sealing connection with the refrigerant inlet, and the return stroke radiating tubes are in sealing connection with the refrigerant outlet. The inlet stroke radiating tubes are connected with the return stroke radiating tubes through the capillary tubes, due to the fact that the capillary tubes can be easily bent, U-type connection can be conveniently performed on a heat exchange tube, and machining difficulty of the radiating tube assemblies is effectively reduced. Under the throttling effect of the capillary tubes, the uneven liquid separation problem caused by separating of gas and liquid of refrigerants is solved, and the heat exchange efficiency of the evaporator is improved.
Description
Technical field
The utility model relates to refrigerating plant, relates in particular to a kind of two-tube-pass dry evaporator and refrigeration plant.
Background technology
At present, the shell and tube evaporator in cooling cycle system is according to the difference of its feed liquid way, is divided into full-liquid type, dry type, circulating and fountain etc.Wherein dry evaporator is that a kind of refrigerant liquid carries out the evaporimeter of boiling heat transfer in heat-transfer pipe, and the medium that its heat-transfer pipe outside is cooled is refrigerating medium.Dry evaporator, because of its compact conformation, is convenient to the many merits such as system oil return and is widely used in refrigeration system.Dry evaporator of the prior art generally includes straight pipe type and U-shaped tubular type, is equipped with many heat exchanger tubes in the shell of two kinds of evaporimeters.But to exist gas-liquid separation phenomenon that cold-producing medium is distributed uneven due to straight pipe type heat exchange pipe end tube bank position height difference, to such an extent as to cold-producing medium in various heat exchange pipe can not carry out heat exchange fully.And U-shaped pipe type heat transfer pipe end is bent into U-shaped structure conventionally, to connect upper and lower heat exchange tube side, in practical operation manufacture process, the heat exchange tube machining technique of U-shaped structure is complicated, and difficulty of processing is larger.Therefore, dry evaporator difficulty of processing of the prior art is large and heat exchange efficiency is lower.
Summary of the invention
Technical problem to be solved in the utility model is: a kind of two-tube-pass dry evaporator and refrigeration plant are provided, solve the large and lower defect of heat exchange efficiency of the U-shaped pipe difficulty of processing of dry evaporator in prior art, realize the difficulty of processing that reduces two-tube-pass dry evaporator, and improve the heat exchange efficiency of two-tube-pass dry evaporator.
The technical scheme that the utility model provides is, a kind of two-tube-pass dry evaporator, comprise shell, on described shell, be provided with refrigerating medium import, refrigerating medium outlet, refrigerant inlet and refrigerant outlet, in described shell, be also provided with many radiating tube assemblies, described radiating tube assembly comprises process radiating tube, backhaul radiating tube and capillary, described process radiating tube connects and composes U-shaped structure by described capillary and described backhaul radiating tube, described process radiating tube and described refrigerant inlet are tightly connected, and described backhaul radiating tube and described refrigerant outlet are tightly connected.
Two-tube-pass dry evaporator as above, the caliber of described process radiating tube is less than the caliber of described backhaul radiating tube.
Two-tube-pass dry evaporator as above, described capillary is for becoming caliber structure, and the caliber described capillaceous being connected with described process radiating tube is less than the caliber that the described capillary that is connected with described backhaul radiating tube is connected.
Two-tube-pass dry evaporator as above, described two-port capillaceous place is cone mouth structure.
Two-tube-pass dry evaporator as above, described shell comprises cylindrical shell, the first capping and the second capping, described the first capping sealing is fixed on a port of described cylindrical shell, described the second capping sealing is fixed on the another port of described cylindrical shell, on the sidewall of described cylindrical shell, be provided with described refrigerating medium import and the outlet of described refrigerating medium, in described the first capping, be provided with described refrigerant inlet and described refrigerant outlet, described capillary is positioned at a side of described the second capping.
Two-tube-pass dry evaporator as above, in described the first capping, sealing is provided with tube sheet, between described tube sheet and described the first capping, form confined space, between described tube sheet and described the first capping, be also provided with a minute journey baffle plate, within described minute, journey baffle plate is divided into the independently process space and backhaul space by described confined space, and described tube sheet offers a plurality of process connecting holes and a plurality of backhaul connecting hole; Described process connecting hole and described refrigerant inlet are communicated with the described process space respectively, and described backhaul connecting hole and described refrigerant outlet are communicated with described backhaul space respectively; Described process radiating tube is sealedly connected in described process connecting hole, and described backhaul radiating tube is sealedly connected in described backhaul connecting hole.
Two-tube-pass dry evaporator as above, described refrigerating medium import is near described the first capping, and described refrigerating medium outlet is near described the second capping.
Two-tube-pass dry evaporator as above, the refrigerating medium space in described cylindrical shell between described refrigerating medium import and the outlet of described refrigerating medium is also provided with multi-disc dividing plate.
Two-tube-pass dry evaporator as above, adjacent two described dividing plates are crisscross arranged, and adjacent two described dividing plates have overlay region along the axis direction of described cylindrical shell.
A refrigeration plant, comprises above-mentioned two-tube-pass dry evaporator.
Two-tube-pass dry evaporator and refrigeration plant that the utility model provides, by adopting capillary that process radiating tube and backhaul radiating tube are linked together, because capillary can be bent easily, thereby can easily heat exchanger tube be carried out to U-shaped connection, effectively reduce the difficulty of processing of radiating tube assembly; Simultaneously, under throttling action capillaceous, solved the problem of the separatory inequality causing when refrigerant air-liquid is separated, the radiating tube assembly that can guarantee diverse location place can obtain all cold-producing mediums of amount, make the cold-producing medium can distributed uniform, cold-producing medium can be evaporated to overheated gas completely along the length direction of radiating tube assembly, has improved the heat exchange efficiency of evaporimeter.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the utility model two-tube-pass dry evaporator embodiment;
Fig. 2 is the structural representation of the first capping in the utility model two-tube-pass dry evaporator embodiment.
The specific embodiment
For making object, technical scheme and the advantage of the utility model embodiment clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
As Figure 1-Figure 2, the present embodiment two-tube-pass dry evaporator, comprise shell 1, on shell 1, be provided with refrigerating medium import 101, refrigerating medium outlet 102, refrigerant inlet 103 and refrigerant outlet 104, in shell 1, be also provided with many radiating tube assemblies (not shown), radiating tube assembly comprises process radiating tube 21, backhaul radiating tube 22 and capillary 23, process radiating tube 21 connects and composes U-shaped structure by capillary 23 and backhaul radiating tube 22, process radiating tube 21 is tightly connected with refrigerant inlet 103, and backhaul radiating tube 22 is tightly connected with refrigerant outlet 104.
Particularly, in shell 1 in the present embodiment two-tube-pass dry evaporator, be provided with the radiating tube assembly of many U-shaped structures, radiating tube assembly comprises process radiating tube 21, backhaul radiating tube 22 and capillary 23, by capillary 23, process radiating tube 21 and backhaul radiating tube 22 are linked together, and can carry out U-shaped connection to process heat exchanger tube 21 and backhaul heat exchanger tube 22 by bending capillary 23, because capillary 23 more easily carries out bending machining, thereby can effectively reduce the difficulty of processing of radiating tube assembly.Cold-producing medium enters into process radiating tube 21 from refrigerant inlet 103, and enter into backhaul radiating tube 22 via capillary 23, capillary 23 can play to cold-producing medium the effect of throttling, thereby the backhaul radiating tube 22 of guaranteeing diverse location place is assignment system cryogen uniformly, avoid distributing uneven phenomenon to occur because refrigerant air-liquid separation causes the cold-producing medium in different backhaul radiating tubes 22, make cold-producing medium distributed uniform.Cold-producing medium flows through process radiating tube 21, capillary 23 and backhaul radiating tube 22 successively, can be evaporated to overheated gas completely, effectively to improve the heat exchange efficiency of the present embodiment two-tube-pass dry evaporator.In use, refrigerating medium will enter into by refrigerating medium import 101 in the housing of shell 1, and refrigerating medium and radiating tube assembly carry out will exporting output 102 from refrigerating medium after heat exchange.In order to facilitate capillary 23 to be firmly fixedly connected with backhaul radiating tube 22 with process radiating tube 21, the both ends of capillary 23 are cone mouth structure.Concrete, end by capillary 23 is set to the cone mouth structure of shrinking, and make capillary 23 can be easy to socket joint and be connected in process radiating tube 21 and backhaul radiating tube 22, and heat conductivility in order to guarantee that capillary 23 is good, preferably, capillary 23 selects copper material to make.
Wherein, the caliber of process radiating tube 21 is less than the caliber of backhaul radiating tube 22.Concrete, the needs that increase gradually in order to meet radiating tube assembly inner refrigerant damp steam specific volume, the caliber of backhaul radiating tube 22 is larger with respect to the caliber setting of process radiating tube 21, cold-producing medium in process radiating tube 21 is entering into after backhaul radiating tube 22 by capillary 23, part cold-producing medium becomes gaseous state, and can be good at meeting compared with the backhaul radiating tube 22 of Large Diameter Pipeline the needs that cold-producing medium damp steam specific volume increases gradually.Preferably, capillary 23 is for becoming caliber structure, and capillary 23 calibers that are connected with process heat exchanger tube 21 mouths of pipe are less than capillary 23 calibers that are connected with backhaul heat exchanger tube 22 mouths of pipe.
In addition, shell 1 in the present embodiment comprises cylindrical shell 11, the first capping 12 and the second capping 13, the first capping 12 sealings are fixed on a port of cylindrical shell 11, the second capping 13 sealings are fixed on the another port of cylindrical shell 11, on the sidewall of cylindrical shell 11, be provided with refrigerating medium import 101 and refrigerating medium outlet 102, in the first capping 12, be provided with refrigerant inlet 103 and refrigerant outlet 104, capillary 23 is positioned at a side of the second capping 13.Concrete, by the first capping 12 and the second capping 13, can seal up two ports of cylindrical shell 11, in the first capping 12, be provided with refrigerant inlet 103 and refrigerant outlet 104, so that be connected with radiating tube assembly, and the second capping 13 is enclosed in the outside of capillary 23, so that hold the part of capillary 23 bendings, and the first capping 12 and the second capping 13 all can be set to semiglobe.And in order to facilitate being connected with refrigerant outlet 104 with refrigerant inlet 103 of process radiating tube 21 and backhaul radiating tube 22 correspondences, in the first capping 12, sealing is provided with tube sheet 14, between tube sheet 14 and the first capping 12, form confined space, between tube sheet 14 and the first capping 12, be also provided with a minute journey baffle plate 15, minute journey baffle plate 15 is divided into the independently process space 121 and backhaul space 122 by confined space, and tube sheet 14 offers a plurality of process connecting holes 141 and a plurality of backhaul connecting hole 142; Process connecting hole 141 and refrigerant inlet 103 are communicated with the process space 121 respectively, and backhaul connecting hole 142 and refrigerant outlet 104 are communicated with backhaul space 122 respectively; Process radiating tube 21 is sealedly connected in process connecting hole 141, and backhaul radiating tube 22 is sealedly connected in backhaul connecting hole 142.Concrete, by minute journey baffle plate 15, the confined space of tube sheet 14 and the first capping 12 formation is separated into the process space 121 and backhaul space 122, many process radiating tubes 21 and backhaul radiating tube 22 can be corresponding the tube sheet 14 that passes through be connected with backhaul space 122 with the process space 121, more be conducive to cold-producing medium to be transported in process radiating tube 21, also facilitate the cold-producing medium in many backhaul radiating tubes 22 is unified to reclaim.
Further, for more effective raising enters into the heat exchange efficiency of refrigerating medium in shell 1 housing, the refrigerating medium import 101 in the present embodiment is near the first capping 12, and refrigerating medium outlet 102 is near the second capping 13.Concrete, the both ends that are positioned at cylindrical shell 11 are separated in refrigerating medium import 101 and refrigerating medium outlet 102, can effectively increase the flow-path-length of refrigerating medium in shell 1, to guarantee that refrigerating medium can carry out sufficient heat exchange.Meanwhile, by by refrigerating medium import 101 near the first capping 12, refrigerating medium can be entered into after shell 1 and just directly carries out heat exchange with the cold-producing medium that has just entered process radiating tube 21, effectively to improve the efficiency of heat exchange.Preferably, in order to increase the flow path of refrigerating medium and the flow velocity of cross-flow tube bank, to strengthen the heat transfer effect of refrigerating medium, in cylindrical shell 11, between refrigerating medium import 101 and refrigerating medium outlet 102, be also provided with multi-disc dividing plate 3, and process radiating tube 21 and backhaul radiating tube 22 can be inserted in corresponding dividing plate 3.Concrete, when refrigerating medium is entered into shell 1 and flowed by refrigerating medium import 101, refrigerating medium will be subject to stopping of dividing plate 3, slows down the speed that refrigerating medium flows out.And dividing plate 3 can be soldered in cylindrical shell 11 and perpendicular to the axis of cylindrical shell 11, and, adjacent two dividing plates 3 are crisscross arranged, and adjacent two dividing plates 3 have overlay region along the axis direction of cylindrical shell 11, refrigerating medium is blocked in shell 1 with " S " type path flow the dividing plate being crisscross arranged 3, thereby effectively increase the flow path of refrigerating medium and the flow velocity of cross-flow tube bank, to strengthen the heat transfer effect of refrigerating medium.
The present embodiment two-tube-pass dry evaporator, by adopting capillary that process radiating tube and backhaul radiating tube are linked together, because capillary can be bent easily, thereby can easily heat exchanger tube be carried out to U-shaped connection, effectively reduce the difficulty of processing of radiating tube assembly; Simultaneously, under throttling action capillaceous, solved the problem of the separatory inequality causing when refrigerant air-liquid is separated, the radiating tube assembly that can guarantee diverse location place can obtain all cold-producing mediums of amount, make the cold-producing medium can distributed uniform, cold-producing medium can be evaporated to overheated gas completely along the length direction of radiating tube assembly, has improved the heat exchange efficiency of evaporimeter.
The utility model also provides a kind of refrigeration plant, comprises above-mentioned two-tube-pass dry evaporator.
Particularly, two-tube-pass dry evaporator in the present embodiment refrigeration plant can adopt the two-tube-pass dry evaporator in the utility model two-tube-pass dry evaporator embodiment, its concrete structure can, referring to the record of the utility model two-tube-pass dry evaporator embodiment and accompanying drawing 1-Fig. 2, not repeat them here.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (10)
1. a two-tube-pass dry evaporator, comprise shell, on described shell, be provided with refrigerating medium import, refrigerating medium outlet, refrigerant inlet and refrigerant outlet, it is characterized in that, in described shell, be also provided with many radiating tube assemblies, described radiating tube assembly comprises process radiating tube, backhaul radiating tube and capillary, described process radiating tube connects and composes U-shaped structure by described capillary and described backhaul radiating tube, described process radiating tube and described refrigerant inlet are tightly connected, and described backhaul radiating tube and described refrigerant outlet are tightly connected.
2. two-tube-pass dry evaporator according to claim 1, is characterized in that, the caliber of described process radiating tube is less than the caliber of described backhaul radiating tube.
3. two-tube-pass dry evaporator according to claim 2, it is characterized in that, described capillary is for becoming caliber structure, and the caliber described capillaceous being connected with described process radiating tube is less than the caliber that the described capillary that is connected with described backhaul radiating tube is connected.
4. two-tube-pass dry evaporator according to claim 1, is characterized in that, described two-port capillaceous place is cone mouth structure.
5. two-tube-pass dry evaporator according to claim 1, it is characterized in that, described shell comprises cylindrical shell, the first capping and the second capping, described the first capping sealing is fixed on a port of described cylindrical shell, described the second capping sealing is fixed on the another port of described cylindrical shell, on the sidewall of described cylindrical shell, be provided with described refrigerating medium import and the outlet of described refrigerating medium, in described the first capping, be provided with described refrigerant inlet and described refrigerant outlet, described capillary is positioned at a side of described the second capping.
6. two-tube-pass dry evaporator according to claim 5, it is characterized in that, in described the first capping, sealing is provided with tube sheet, between described tube sheet and described the first capping, form confined space, between described tube sheet and described the first capping, be also provided with a minute journey baffle plate, within described minute, journey baffle plate is divided into the independently process space and backhaul space by described confined space, and described tube sheet offers a plurality of process connecting holes and a plurality of backhaul connecting hole; Described process connecting hole and described refrigerant inlet are communicated with the described process space respectively, and described backhaul connecting hole and described refrigerant outlet are communicated with described backhaul space respectively; Described process radiating tube is sealedly connected in described process connecting hole, and described backhaul radiating tube is sealedly connected in described backhaul connecting hole.
7. two-tube-pass dry evaporator according to claim 5, is characterized in that, described refrigerating medium import is near described the first capping, and described refrigerating medium outlet is near described the second capping.
8. two-tube-pass dry evaporator according to claim 7, is characterized in that, the refrigerating medium space in described cylindrical shell between described refrigerating medium import and the outlet of described refrigerating medium is also provided with multi-disc dividing plate.
9. two-tube-pass dry evaporator according to claim 8, is characterized in that, adjacent two described dividing plates are crisscross arranged, and adjacent two described dividing plates have overlay region along the axis direction of described cylindrical shell.
10. a refrigeration plant, is characterized in that, comprises the two-tube-pass dry evaporator as described in as arbitrary in claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018615.2U CN203744607U (en) | 2014-01-13 | 2014-01-13 | Double-tube-pass dry type evaporator and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420018615.2U CN203744607U (en) | 2014-01-13 | 2014-01-13 | Double-tube-pass dry type evaporator and refrigeration equipment |
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| Publication Number | Publication Date |
|---|---|
| CN203744607U true CN203744607U (en) | 2014-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420018615.2U Withdrawn - After Issue CN203744607U (en) | 2014-01-13 | 2014-01-13 | Double-tube-pass dry type evaporator and refrigeration equipment |
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| CN (1) | CN203744607U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266408A (en) * | 2014-09-18 | 2015-01-07 | 山东宏力热泵能源股份有限公司 | Heat exchanger for heat pump, and heat pump applying same |
| CN104776641A (en) * | 2014-01-13 | 2015-07-15 | 海尔集团公司 | Double-tube-pass dry-type evaporator and refrigerating equipment |
-
2014
- 2014-01-13 CN CN201420018615.2U patent/CN203744607U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104776641A (en) * | 2014-01-13 | 2015-07-15 | 海尔集团公司 | Double-tube-pass dry-type evaporator and refrigerating equipment |
| CN104776641B (en) * | 2014-01-13 | 2017-06-20 | 海尔集团公司 | Two-tube-pass dry evaporator and refrigeration plant |
| CN104266408A (en) * | 2014-09-18 | 2015-01-07 | 山东宏力热泵能源股份有限公司 | Heat exchanger for heat pump, and heat pump applying same |
| CN104266408B (en) * | 2014-09-18 | 2016-06-22 | 山东宏力热泵能源股份有限公司 | A kind of heat pump heat exchanger and apply the heat pump of this heat exchanger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20170620 |