Dryplus-3 shell & tube evaporators. Dry expansion evaporators optimised for the air conditioning and refrigeration world

Transcription

1 ryplus3 shell & tube evaporators ry expansion evaporators optimised for the air conditioning and refrigeration world

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3 ryplus3 shell & tube evaporators 4 xcellence and flexibility in performance erformances and features 5 erfection in construction ntegrate water tank solutions 6 Quality and approvals 7 uxiliary connections upports kw 9 kw 1 kw 11 2 kw 12 3 kw kw 14 kw 67 kw 16 9 kw 17 kw kw kw 34 kw 21 efrigerant connections 22 Water connections 23 ntegrate water tank solutions

4 xcellence and flexibility in performance ryplus3 series of shell and tube evaporators represent the natural technological evolution of a generation of heat exchangers leader in the air conditioning and refrigeration applications. he models of the series ensure cooling capacities up to 0 kw at nominal conditions, from 1 to 4 independent cooling circuits, 3 different baffle distances depending on the working water flows and 3 different positions of the water connections. n particular, the evaporators have been optimised for opera tion with 7 refrigerant. he adoption of a dedicate, high efficiency exchange tube allowed to exalt performances increasing the cooling capacities by values close to %. his performance improvement can be alternatively translated into a raising of the evaporation temperature and then in an optimisation of the of the cooling system, not only in combination with 7 but also with the other refrigerants. articular attention has been paid to the lubricant oil flow aspect. ryplus3 performances with 7 log t const. t const. tsot tc2 tcm tc1 V2 tom to1 tex to2 tv1 V1 h kw evaporation temperature onventional evaporators 7 lide ryplus3 vaporators *verage results on the different models in the 13 kw range erformances and features 1. he first shell and tube evaporator optimised for 7 2. xalted performances with no size increase, thanks to new high efficiency tubes and design 3. xchange tubes designed to ensure a safe flow for the most viscous lubricant oils 4. educed water side pressure drops 5. range designed to operate as a standard in heat pump mode 6. 3 baffle distances available 7. xtractable tube bundle 8. tainless steel versions 9. educed length versions. integrate water tank solutions 4 ryplus3 shell & tube evaporators

5 erfection in construction lfa aval shell and tube evaporators include the results of a research intended to ensure a high level of mechanical strength and resistance to vibration and corrosion. he U design of the tube bundle allows the thermal expansion between the tubes and the shell avoiding any tension. hanks to this solution the tube bundle can be extracted from the shell for inspection or maintenance (starting with model X_) and it is possible to rotate the shell in order to change the water connection position. he material choice is linked not only to heat exchange targets, but also to pressure design needs due to years of intensive usage: eader, tube sheet, shell, refrigerant and water connections are made of carbon steel; igh efficiency exchange tubes are in copper, internally finned; affles are made of brass or other suitable material (carbon steel); he bolt system is made of steel alloys or stainless steel depending on working conditions and temperatures, while gaskets are made of an asbestos free compound. vaporators are available in stainless steel execution ( 316) following the requests (in the configurations tube sheet and exchange tubes; shell, tube sheet and exchange tubes; the whole unit in stainless steel). hree different insulation versions are available. efrigerant outlet connection Water inlet connection hermostat socket Water outlet connection eader efrigerant inlet connection ube sheet eat exchange tubes Water drain ntegrate water tank solutions o integrate in one unique solution a shell and tube evaporator and a water tank. he logic that supports the (ntegrated ank) solution is simple and profitable: his solution reduces considerably the space occupied by these two components, allowing to place a water tank where this operation would be not possible, as in several package chiller models; wo versions are available: water flow with storage before or after the evaporator. n the second case the advantage is the creation of a reservoir of cold water which tends to stabilize the outlet water temperature and reduces in this way the number of startups of the compressors; he whole integrate solution (evaporator and tank) is approved, completely tested and supplied with supports. integrated water tanks are available in 9 sizes, from 2 to 0 litres. ryplus3 shell & tube evaporators 5

6 Quality and approvals Quality means to count on a design and a manufacturing process certified according to 01 and to offer the widest range of pressure vessel approvals. n request, it is possible to obtain certifications by the major marine classification bodies. ach lfa aval evaporator undergoes to the following tests: ressure test refrigerant and water side at the pressure values and following the process indicated by the lfa aval standard or by the chosen pressure vessel code; ifferential pressure test of the single refrigerant circuits; eakage test with helium (maximum acceptable leakage value is 3 g/yr of 22). fter tests, the cooling circuit is dried and protected with adsorbing charges. Nominal data X_18X_0 lfa aval std. U * Q refrig. bar refrig. bar water bar water bar * approval includes models starting with size (shell diameter odels 1847 are U approved. Nominal data X_1X_0 lfa aval std. U Q refrig. bar.5 refrig. bar water bar water bar : design pressure : test pressure : design temperature 6 ryplus3 shell & tube evaporators

7 uxiliary connections ) n 2 x 1 /2" UN 228/1 for regulation and/or antifreeze thermostats; ) n 3 x " UN 228/1 for vent and/or drain of water. ) Name plate. upports lfa aval evaporators can be equipped with supports welded to the shell (illustrated in the technical data pages which are following) or with universal brackets which are positioned in the installation phase and allows therefore the maximum flexibility (available up to shell diameter 6 ). ode 34 1 Universal rackets: dimensions () min max ype x Y 1 min max x Y 2 min max x Y 3 min max N odel X X XQ Nominal capacity kw Water connect. position op X ight X eft affles span tandard hort distance X horter distance esign temperature tandard ow temp. pproval U Q ryplus3 shell & tube evaporators 7

8 1847 kw Nominal onditions odel X18 X28 X X47 47 U efrig.: 7c N brine 12 brine 7 (8 X18/28) c(dew).26 vap(dew) 2. sc 3; sh 5 ubricant oil 68 [kw] [m3/h] [m3/h] 18,6 4 6,3 0,16 28, ,29,1 6 0, ,4 0,41 1"UN 228/1 X 18 X 28 X X imensions upport onnections Volumes Weight V 3,5 4, ,7 5,7 V2 6,7 7,9 9,5 9, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating 8 ryplus3 shell & tube evaporators

9 kw Nominal onditions odel X X X X efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 ubricant oil 68 [kw] [m3/h] [m3/h] 9,6 12 0, 11,4 14,5 0,39 13,8 18 0, 16,4 21 0,46 X X X X imensions upport onnections Volumes Weight V 7,3 7,3 8,2 8,2 9,3 9,3,2,2 V2,3,3 17,2 17,2 19,8 19,8 21,7 21, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating ryplus3 shell & tube evaporators 9

10 1 kw Nominal onditions odel X X X11 X1 X11 X1 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 [kw] [m3/h] [m3/h],6 1 23, ,3 ubricant oil 68 0,29 0,44 0, X X X 1 1 X 1 X 1 1 X 1 imensions upport onnections W22 22 W22 22 W22 54 W 67 W 67 W Volumes Weight V 13,8 13,8 13,8 16,2 16,2 16,2 17,8 17,8 17,8 V2,2,2,2 38,8 38,8 38, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating ryplus3 shell & tube evaporators

11 2 kw Nominal onditions odel X X XQ X2 2 X2 XQ2 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 ubricant oil 68 [kw] [m3/h] [m3/h] 34,2 41 0, ,1 43 0, X X XQ X 2 2 X 2 XQ 2 imensions upport onnections W22 W22 W22 W W W W W Volumes Weight V 23,7 23,7 23,7 23,7 26,8 26,8 26,8 26,8 V2 49,3 49,3 49,3 49, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating ryplus3 shell & tube evaporators 11

12 3 kw Nominal onditions odel X X XQ X3 3 X3 XQ3 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 [kw] [m3/h] [m3/h] 51,4 3 59,1 68 ubricant oil 68 0,48 0, X X XQ X 3 3 X 3 XQ 3 imensions upport onnections W W22 W W22 54 W54 W 54 W54 W Volumes Weight V 34,9 34,9 34,9 34,9 38,9 38,9 38,9 38,9 V2 93,3 93,3 93,3 93,3 87,5 87,5 87,5 87, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating 12 ryplus3 shell & tube evaporators

13 3854 kw Nominal onditions odel X X385 XQ385 X4 4 X4 XQ4 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 [kw] [m3/h] [m3/h] ,1 ubricant oil 68 0,38 0, X X 385 XQ 385 X 4 4 X 4 XQ 4 imensions upport onnections W W22 54 W54 W Volumes Weight V 44,8 44,8 44,8 44,8,9,9,9,9 V2,2,2,2,2 133,4 133,4 133,4 133, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating ryplus3 shell & tube evaporators 13

14 kw Nominal onditions odel X5 5 X5 XQ5 X5 5 X5 XQ5 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 ubricant oil 68 [kw] [m3/h] [m3/h] 5 86,5 0, 5 97,6 5 0, X 5 5 X 5 XQ 5 X 5 5 X 5 XQ 5 imensions upport onnections Volumes Weight V 59,9 59,9 59,9 59,9 68,8 68,8 68,8 68,8 V2 dm 3 124,7 124,7 124,7 124,7 113,5 113,5 113,5 113, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating 14 ryplus3 shell & tube evaporators

15 67 kw Nominal onditions odel 6 X6 XQ6 7 X7 XQ7 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 ubricant oil 68 [kw] [m3/h] [m3/h] , 7 131, , 6 X 6 XQ 6 7 X 7 XQ 7 imensions upport onnections Volumes Weight V,1,1,1 92,6 92,6 92,6 V2 221,7 221,7 221,7 6,5 6,5 6, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating vaporatori a fascio tubiero ryplus3

16 9 kw Nominal onditions odel 9 X9 XQ9 0 X0 XQ0 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 [kw] [m3/h] [m3/h] 9 6, ,2 1 ubricant oil 68 0, 0, 9 X 9 XQ 9 0 X 0 XQ 0 imensions upport onnections Volumes Weight V 1,7 1,7 1,7 131,3 131,3 131,3 V2 184,4 184,4 184,4,2,2, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating 16 ryplus3 shell & tube evaporators

17 kw Nominal onditions odel 1X1 XQ1 1X1 XQ1 13X13 XQ13 0X0 XQ0 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 ubricant oil 68 [kw] [m3/h] [m3/h] 1 188,4 0, , , , 1 X 1 XQ 1 1 X 1 XQ 1 13 X 13 XQ 13 0 X 0 XQ 0 imensions upport onnections Volumes Weight V V category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating ryplus3 shell & tube evaporators 17

18 12 kw Nominal onditions odel X1 1 X1 XQ1 X2 2 X2 XQ2 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 ubricant oil 68 [kw] [m3/h] [m3/h] 1 27,4 31 0, , X 1 1 X 1 XQ 1 X 2 2 X 2 XQ 2 imensions upport onnections W22 W22 W W W W 54 W54 W Volumes Weight V 18,6 18,6 18,6 18,6 24,1 24,1 24,1 24,1 V2 41,8 41,8 41,8 41,8 62,7 62,7 62,7 62, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating 18 ryplus3 shell & tube evaporators

19 22 kw Nominal onditions odel X2 2 X2 XQ2 X2 2 X2 XQ2 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 ubricant oil 68 [kw] [m3/h] [m3/h] 2,2,6 0,3 2 47,1 61,6 0,36 X 2 2 X 2 XQ 2 X 2 2 X 2 XQ 2 imensions upport onnections W W22 W W22 54 W54 W 54 W54 W Volumes Weight V 26,8 26,8 26,8 26,8,8,8,8,8 V2 58,1 58,1 58,1 58,1 53,2 53,2 53,2 53, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating ryplus3 shell & tube evaporators 19

20 34 kw Nominal onditions odel X33 X3XQ3 X XXQ X44 X4XQ4 efrig.: 7c N brine 12 U brine 7 c(dew).26 vap(dew) 2. sc 3; sh 5 ubricant oil 68 [kw] [m3/h] [m3/h] 3 66,8 0,4 71,9 91 0, ,2 0, X 3 3 X 3 XQ 3 X X XQ X 4 4 X 4 XQ 4 imensions upport onnections Volumes Weight V,2,2,2, ,1 51,1 51,1 51,1 V2 6,1 6,1 6,1 6,1 99,8 99,8 99,8 99,8 89,8 89,8 89,8 89, category* * category according to U irective 97/23/. he category refers to the use of roup 2 fluids at the value of the standard temperature version. aximum water flow sc sh ubcooling uperheating ryplus3 shell & tube evaporators

21 efrigerant connections he connection between the evaporator and the refrigerant circuit is made, depending on the evaporator size, with rotalock connections, welding connections or flange connections. otalock connections () otalock ype [] [] [] 36 1 " 14UN 1 1/4" 12UN 1 3/4" 12UN 1 3/4" 12UN Name [] [] [] /8 7/8 16,3 22,5 28,3 1 3/8,3 Welding connections (W) Welding ype [] [] Name [] [] [] W ,5 26,7 W W,3,4,4 48,3 W ,5,3 lange connections () lange ype [] [] [] [] d Name [] [] [] [] 1 3/8,3, ,7 2 1/8 2 1/8 2 5/8 54,4 54,4 67, ,6 88,9 d pecial connections (flange) onnection Name N onnection [] Name [in] [] [in] [] [in] ype 1 3/8 ype / /8 2 1/8 ype /8 2 5/8 ype /8 2 1/8 ype ype /8 3 1/ ryplus3 shell & tube evaporators 21

22 Water connections ifferent connections are available, depending on the evaporator size: With UN/ 7/1 thread up to 3 ; With flexible joint starting with 4 (N ); With UN 2278 N 16 flange connections (not standard alternative: to be specified). he flexible joint gaskets are compatible with liquids normally used in refrigeration and air conditioning applications and are suitable to be used within and +. he joints are supplied with the flexible joint and a slot end with groove. hreaded connections () hreaded connections () d ype [] [] [] Name d [in] X1828 X47 X X1 3 3 X1 3 3 lexible joint (J) lexible joint (J) d ype X2 [] 149,2 [] 212,8 [],8 d 12 Name N [] 114,3 (4") X ,8 2,8, ,3 1 (5") X 3,2 285,8, ,3 (6") X60 X 263,5 263,5 349,3 349,3,3,3,1 (8"),1 (8") X22 149,2 212,8, ,3 (4") X34 3,2 285,8, ,3 (6") onnection pipe onnection pipe U ype N [] [] [] [ [] U [] X2 (4"),9 9,5 1,1 2,1 3,2 X385 X 1 (5") (6"),9 19,5 9,51 9,5,5 163,9 2,9 2,2 4 4 X60 (8") 19 11,1 214,4 2,3 6,3 X (8") 19 11,1 214,4 2,3 6,3 X22 (4"),9 9,5 1,1 2,1 4 X34 (6") 19,5 9,5 163,9 2,2 4 lange connections N lange connections ype N [] X1828 X47 X X1 1 X X X 34 2 X60 2 X 2 22 ryplus3 shell & tube evaporators

23 ntegrate water tank solutions odel X models to be included VN d5 U 1 d7 N 1 N d4 Nominal data refrig. (bar) refrig. (bar) water (bar) water (bar) * lfa aval std * Q NNN d6 ( ) *ption available with water side or 16 bar imensions N U onnections in N in d4 in d5 in d6 in d7 in Volumes Weight V : design pressure : test pressure : design temperature 228/ N lexible joint ryplus3 shell & tube evaporators 23