CN201589466U - Purely reverse-flow dry evaporator device - Google Patents
Purely reverse-flow dry evaporator device Download PDFInfo
- Publication number
- CN201589466U CN201589466U CN2009200747974U CN200920074797U CN201589466U CN 201589466 U CN201589466 U CN 201589466U CN 2009200747974 U CN2009200747974 U CN 2009200747974U CN 200920074797 U CN200920074797 U CN 200920074797U CN 201589466 U CN201589466 U CN 201589466U
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- tube
- plate
- bobbin carriage
- steam
- refrigerating medium
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Abstract
The utility model relates to a purely reverse-flow dry evaporator device. Currently, a normally used ordinary dry evaporator has complicated structure, large pressure drop and low energy efficiency. The technical scheme includes that purely reverse-flow heat exchange with single flowage is realized in flow directions of tube pass gas-liquid refrigerant mixture and shell pass secondary refrigerant, and the device is mainly formed by a liquid inlet tube, a tube box, a primary distributing hole plate, a secondary distributing hole plate, a drum, a secondary refrigerant outlet, an evaporation tube bundle, a baffle plate, a secondary refrigerant outlet, a tube plate, an air outlet tube and the like. The device has the advantages that purely reverse flow heat exchange with single flowage is realized by using the distributing hole plates and the baffle plate, and the device has evener liquid dividing of gas-liquid refrigerant mixture, lowers pressure drop and effectively enhances energy efficiency and heat transfer performance of an evaporator by improving 15-20% of energy efficiency and heat transfer performance and reducing 10% pressure drop compared with ordinary dry evaporators, and is capable of reducing overall volume, thereby being economic and saving energy.
Description
Technical field
The utility model relates to a kind of heat exchange container device in refrigerated air-conditioning system, particularly relates to a kind of evaporator in refrigerated air-conditioning system.
Background technology
Critical piece in the refrigerated air-conditioning system comprises: compressor, oil eliminator, condenser, reservoir, expansion valve, pipeline and control panels such as evaporimeter.Its kind of refrigeration cycle process is that cold-producing medium and the refrigeration oil gas phase mixture of high pressure superheater that compressor is discharged carries out after gas-liquid two-phase separates through oil eliminator, cold-producing medium enters in the condenser again and is condensed into high-pressure sub-cooled liquid by the heat absorption of normal temperature refrigerating medium, change into the low area overheat steam and sucked by compressor through putting hot gas by the normal temperature refrigerating medium in evaporimeter after the expansion valve throttling again, circulation realizes process of refrigerastion and so forth.Wherein the performance of dry evaporator is to the energy-saving and cost-reducing central role that plays key of whole refrigeration air-conditioner.
In refrigerated air-conditioning system, adopt at present usually common dry evaporator to remain defective aspect following: 1) at first since in the evaporimeter bobbin carriage of gas-liquid refrigerant mixture divide Cheng Caiyong multipaths, cause the flow direction of shell side refrigerating medium and tube side gas-liquid cold-producing medium to be the concurrent-countercurrent state, cause pressure drop to increase, efficiency reduces; 2) secondly owing to separatory in the gas-liquid refrigerant mixture bobbin carriage in the evaporimeter is inhomogeneous, make the gas-liquid cold-producing medium insufficient, cause heat transfer property to descend through the gasification after the heat exchange; 3) because common evaporimeter bobbin carriage divides Cheng Caiyong multipaths, exist complex structure, seal request height, difficulty of processing big, cause the processing cost height, uneconomical, not energy-conservation.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, it is the purpose of this utility model place that a kind of simple for structure, compact, effective pure reverse flow dry evaporator device that uses in refrigerated air-conditioning system is provided.Technical solutions of the utility model are the flow direction of tube side gas-liquid refrigerant mixture in the dry evaporator and shell side refrigerating medium will be realized single process, pure countercurrent heat exchange, and make gas-liquid refrigerant mixture separatory more even by the distributing pore plate in the bobbin carriage, the gas-liquid cold-producing medium flashed to hot gaseous fully along the length direction in the tube bank, reduce pressure drop, effectively improved the evaporimeter heat transfer property.The technical solution of the utility model is come specific implementation by following technical measures, a kind of pure reverse flow dry evaporator device that in refrigerated air-conditioning system, uses, it is characterized in that it is by feed tube, bobbin carriage, the one-level distributing pore plate, the secondary distribution orifice plate, cylinder, the refrigerating medium outlet, steam-generating bank, deflection plate, the refrigerating medium import, tube sheet and escape pipe are formed, wherein: with axial cross section is that inside and outside conical two bobbin carriages are installed on the two end tube sheets of a horizontal steel cylinder, the axial outer end face center of one end bobbin carriage communicates with the feed tube connection, and the axial outer end face center of other end bobbin carriage communicates with the escape pipe connection; At a end near feed tube, one-level distributing pore plate and secondary distribution orifice plate are arranged in the inner conical chamber of bobbin carriage 2, the one-level distributing pore plate is the circular flat shape, fixing with Jia welding in the inner conical chamber wall of bobbin carriage, separatory hole, the different aperture of distribution array on the circular flat of one-level distributing pore plate, the aperture sum in one-level distributing pore plate upper liquid separating hole is 1.5-2 a times of feed tube latus rectum; The secondary distribution orifice plate is the circular flat shape, fixing with the inner conical resonator end surface madial wall welding of bobbin carriage 2, the separatory hole is arranged on the secondary distribution orifice plate, the quantity in its separatory hole, position are identical with hole count, the position of tube sheet, the aperture in these separatory holes is 3mm-5mm and over against whole steam-generating banks, make that the gas-liquid refrigerant mixture is unidirectional to be ejected in the every steam-generating bank uniformly, improved the hotting mask coefficient in the pipe; The array steam-generating bank is pressed equilateral triangle and is arranged, and fixes with the two ends tube plate expanded-connecting; That in cylinder, arrange the non-full circle of several piece and be enclosed within deflection plate outside the steam-generating bank along the length direction of steam-generating bank, about the scarce circular portion of the deflection plate of non-full circle (or about) the transpostion interval arrangement, make refrigerating medium through having improved the outer hotting mask coefficient of pipe behind the baffling; Refrigerating medium import and refrigerating medium outlet are separately positioned on the side, left and right two ends of cylinder, wherein the refrigerating medium import must be arranged on cylinder one side away from the feed liquor pipe end, make tube side gas-liquid refrigerant mixture and shell side refrigerating medium carry out single process, pure countercurrent heat exchange, the gas-liquid refrigerant mixture flashed to hot gaseous fully, and the escape pipe that communicates by the connection of other end bobbin carriage enters compressor.
The using method of the utility model pure reverse flow dry evaporator device is: the low-pressure gas-liquid refrigerant mixture enters on one-level distributing pore plate 3 in the end bobbin carriage and the secondary distribution orifice plate 4 evenly separatory by feed tube, make that the gas-liquid refrigerant mixture is unidirectional to be ejected in the every steam-generating bank uniformly, and carry out pure countercurrent heat exchange with the refrigerating medium import of other end side, make the gas-liquid cold-producing medium flash to hot gaseous fully, and the escape pipe that communicates by the connection of other end bobbin carriage enter compressor along the length direction in the tube bank.
The beneficial effects of the utility model are, this pure reverse flow dry evaporator has adopted distributing pore plate and deflector means to realize single process, pure countercurrent heat exchange in bobbin carriage, is a kind of compact conformation, and easy to make, processing cost is low.Gas-liquid refrigerant mixture separatory is more even, has reduced pressure drop, has effectively improved the efficiency and the heat transfer property of evaporimeter.Improve efficiency and the heat transfer property of 15-20% than common dry evaporator, reduced by 10% pressure drop.And whole volume can reduce, not only economy but also energy-conservation.
Description of drawings
The axial section structural representation of Fig. 1, the utility model pure reverse flow dry evaporator device embodiment.
The radial section of Fig. 2, the utility model pure reverse flow dry evaporator device embodiment and AND DEWATERING FOR ORIFICE STRUCTURE schematic diagram.
The meaning that each Reference numeral is expressed as follows respectively in the accompanying drawing:
1----feed tube, 2----bobbin carriage, 3----one-level distributing pore plate, 4----secondary distribution orifice plate,
5----cylinder, the outlet of 6----refrigerating medium, 7----steam-generating bank, 8----deflection plate,
The import of 9----refrigerating medium, 10---tube sheet, 11----escape pipe.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified:
Present embodiment is that a kind of refrigerating capacity that is applied in is 460kW, model is the pure reverse flow dry evaporator device in the refrigeration air-conditioner unit of EGZ470HG, it is made up of feed tube 1, bobbin carriage 2, one-level distributing pore plate 3, secondary distribution orifice plate 4, cylinder 5, refrigerating medium outlet 6, steam-generating bank 7, deflection plate 8, refrigerating medium import 9, tube sheet 10 and escape pipe 11 etc., each parts installs by the structure that accompanying drawing 1,2 provides, wherein: the external diameter of cylinder 5 is Φ 373mm, length is 2400mm, adopts steel plate to roll and forms; With axial cross section is that inside and outside conical two bobbin carriages 2 are installed on the two end tube sheets 10 of a horizontal steel cylinder 5, the axial outer end face of one end bobbin carriage 2 is middle to be that 1 connection of Φ 38mm feed tube communicates with external diameter, and the axial outer end face of other end bobbin carriage 2 is middle to be that 11 connections of Φ 89mm escape pipe communicate with external diameter; At a end near feed tube 1, in the inner conical chamber of bobbin carriage 2 one-level distributing pore plate 3 is arranged, one-level distributing pore plate 3 is the circular flat shape, fixing with Jia welding in the inner conical chamber wall of bobbin carriage 2, separatory hole, the different aperture of distribution array on the circular flat of one-level distributing pore plate 3, the aperture sum in one-level distributing pore plate upper liquid separating hole is 2 times of feed tube 1 latus rectum; Secondary distribution orifice plate 4 is the circular flat shape, fixing with the inner conical resonator end surface madial wall welding of bobbin carriage 2, the separatory hole is arranged on the secondary distribution orifice plate 4, the quantity in its separatory hole, position are identical with hole count, the position of tube sheet 10, the aperture in these separatory holes is 5mm and over against whole steam-generating banks 7, make that the gas-liquid refrigerant mixture is unidirectional to be ejected in the every steam-generating bank 7 uniformly, improved the hotting mask coefficient in the pipe; Array steam-generating bank 7 is pressed equilateral triangle and is arranged, and fixes with two ends tube sheet 10 expanded joints; That in cylinder 5, arrange 11 non-full circle and be enclosed within deflection plate 8 outside the steam-generating bank 7 along the length direction of steam-generating bank 7, the scarce circular portion of the deflection plate 8 of non-full circle transpostion interval 190mm is up and down arranged, and makes refrigerating medium through having improved the outer hotting mask coefficient of pipe behind the baffling; Refrigerating medium import 9 and refrigerating medium outlet 6 are separately positioned on the side, left and right two ends of cylinder 5, wherein refrigerating medium import 9 must be arranged on cylinder 5 one sides away from feed tube 1 end, make tube side gas-liquid refrigerant mixture and shell side refrigerating medium carry out single process, pure countercurrent heat exchange, the gas-liquid refrigerant mixture flashed to hot gaseous fully, and the escape pipe 11 that communicates by 2 connections of other end bobbin carriage enters compressor.
Claims (4)
1. pure reverse flow dry evaporator device that in refrigerated air-conditioning system, uses, it is characterized in that it is made up of feed tube, bobbin carriage, one-level distributing pore plate, secondary distribution orifice plate, cylinder, refrigerating medium outlet, steam-generating bank, deflection plate, refrigerating medium import, tube sheet and escape pipe, wherein: with axial cross section is that inside and outside conical two bobbin carriages are installed on the two end tube sheets of a horizontal steel cylinder, the axial outer end face center of one end bobbin carriage communicates with the feed tube connection, and the axial outer end face center of other end bobbin carriage communicates with the escape pipe connection; At a end near feed tube, one-level distributing pore plate and secondary distribution orifice plate are arranged in the inner conical chamber of bobbin carriage, the one-level distributing pore plate is the circular flat shape, and is fixing with Jia welding in the inner conical wall of bobbin carriage, the separatory hole in the different apertures of distribution array on the circular flat of one-level distributing pore plate; The secondary distribution orifice plate is the circular flat shape, fixing with the inner conical resonator end surface madial wall welding of bobbin carriage, the separatory hole is arranged on the secondary distribution orifice plate, the quantity in its separatory hole, position are identical with hole count, the position of tube sheet 10, and over against whole steam-generating banks (7), make that the gas-liquid refrigerant mixture is unidirectional to be ejected in the every steam-generating bank uniformly, improved the hotting mask coefficient in the pipe; The array steam-generating bank is pressed equilateral triangle and is arranged, and fixes with the two ends tube plate expanded-connecting; That in cylinder, arrange the non-full circle of several piece and be enclosed within deflection plate steam-generating bank outside, the transpostion interval arrangement up and down of the scarce circular portion of the deflection plate of non-full circle along the length direction of steam-generating bank; Refrigerating medium import and refrigerating medium outlet are separately positioned on the cylinder side faces at both ends, wherein the refrigerating medium import must be arranged on cylinder one side away from the feed liquor pipe end, make tube side gas-liquid refrigerant mixture and shell side refrigerating medium carry out single process, pure countercurrent heat exchange, and the escape pipe that communicates by the connection of cylinder other end bobbin carriage enter compressor.
2. pure reverse flow dry evaporator device according to claim 1, the aperture sum that it is characterized in that described one-level distributing pore plate upper liquid separating hole are 1.5-2 times of feed tube latus rectum.
3. pure reverse flow dry evaporator device according to claim 1 is characterized in that the aperture in described secondary distribution orifice plate upper liquid separating hole is 3mm-5mm.
4. pure reverse flow dry evaporator device according to claim 1 is characterized in that the scarce circular portion transpostion interval arrangement up and down of the deflection plate of described non-full circle, and perhaps left and right sides transpostion interval is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200747974U CN201589466U (en) | 2009-12-11 | 2009-12-11 | Purely reverse-flow dry evaporator device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200747974U CN201589466U (en) | 2009-12-11 | 2009-12-11 | Purely reverse-flow dry evaporator device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201589466U true CN201589466U (en) | 2010-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200747974U Expired - Lifetime CN201589466U (en) | 2009-12-11 | 2009-12-11 | Purely reverse-flow dry evaporator device |
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| CN (1) | CN201589466U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080901A (en) * | 2010-12-13 | 2011-06-01 | 上海环球制冷设备有限公司 | Integrated condensing dry evaporator device and use method thereof |
-
2009
- 2009-12-11 CN CN2009200747974U patent/CN201589466U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080901A (en) * | 2010-12-13 | 2011-06-01 | 上海环球制冷设备有限公司 | Integrated condensing dry evaporator device and use method thereof |
| CN102080901B (en) * | 2010-12-13 | 2013-06-26 | 上海环球制冷设备有限公司 | Integrated condensing dry evaporator device and use method thereof |
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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 |
Granted publication date: 20100922 Effective date of abandoning: 20091211 |