ZNX Counter flow Type Evaporative Condenser-HACST Heat Transfer Technology (Shandong) Co., Ltd.

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ZNX Counter flow Type Evaporative Condenser

Working principle

For ZNX series combined flow evaporative condenser, the fresh air intakes from bottom air inlet, and will become saturated hot air mixed with spraying water as they flow in reverse direction. The heat will be exhausted out by fans，but the water will be collected to water basin for secondary spraying by its special designed drift eliminator. As no infill inside, ZNX series combined flow evaporative condenser has much space to enlarge its coil unit heat rejection area, more compact structure and requires less footprint .

Advantage:

1, No infill designed, more compact structure, lower profile, less installation area required, and easy for transport and installation.

2,Suitable to severe environment as its structure muchmore close, which could prevent from sand and dust.

3, Suitable to high temperature fluid, because hot spraying water will not distort PVC fill as no PVC fill designed.

4, Freezing resistance,because there is no PVC fill to slow down spraying water flow speed.

Model Selection

1, Confirm Total System Heat Rejection Capacity: Total System Heat Rejection Capacity = Total latent heat of condensing medium inside + Total heat rejection of condensing medium (For refrigeration system, it could be

selected based on system refrigeration capacity)

2, Confirm the design conditions: Condensing Medium, Condensation Temperature, and Wet Bulb Temperature

3, Determine the correction coefficient ‘R’ by lookup correction coefficient table.

4, Determine Corrected Heat Rejection Capacity: Corrected Heat Rejection Capacity = Total System Heat Rejection Capacity * ‘R’ (correction coefficient).

5, Model selection: select the evaporative condenser model

with rated capacity equal to or greater than the Corrected Heat Rejection Capacity.

Example

（Take Ammonia refrigeration as an example）

1, Total Heat Rejection Capacity of the ammonia refrigeration system is 1200 kw. (Total Heat Rejection Capacity = Compressor refrigerating capacity + Compressor shaft power)

2, Operating condition: Condensation temperature 36 ℃, Wet Bulb Temperature 28 ℃.

3, Lookup ‘Correction Coefficient Table for R717’, and get the correction coefficient 1.35.

4, Determine Corrected Heat Rejection Capacity: 1200kw x l. 35 = 1620kw

5, According to ZHX model table of HAC evaporative condenser, select model ZHX-1680 as it’s the smallest one in these models with capacity greater than1620 kw.

Notice

1, The parameters in the datasheet is for reference only.

2, Operating weight is the weight of equipment full of refrigerant, and bottom water tray full of spraying water.

3, For client’s non-standard requirement, customization available.

4, The rated heat rejection capacity in the datasheet is calculated based on following design conditions: Condensing Temperature=37℃，Maximum Wet bulb Temperature=26℃.

MODEL	CAPACITY (M3/h)	FAN			WATER SPRAYING PUMP			INLET/OUTLET DN(MM)	WEIGHT		DIMENSION
MODEL	CAPACITY (M3/h)	QTY	POWER (K/W)	AIR VOLUME PER SET (M3/h)	QTY	POWER (K/W)	WATER VOLUME PER SET (M3/h)	DN(mm)	SHIPPING (KG)	OPERATIONG (KG)	LENGTH (MM)	WIDTH (MM)	HEIGHT (MM)
ZNX-100	100	1	1.5	18000	1	0.55	23	DN50	890	1660	1230	1150	3440
ZNX-200	200	1	2.2	30000	1	0.75	28	DN50	1370	2480	1925	1150	3650
ZNX-320	320	1	3	45000	1	0.75	28	DN50	1990	3620	1925	1840	3840
ZNX-430	430	1	4	60000	1	1.1	45	DN80	2120	3790	1925	1840	4220
ZNX-525	525	1	5.5	75000	1	1.5	65	DN80	2420	4490	2470	1840	4220
ZNX-595	595	1	7.5	87000	1	1.5	65	DN80	2690	4760	2470	1840	4450
ZNX-700	700	1	7.5	100000	1	2.2	84	DN100	3650	6080	2790	1840	4450
ZNX-800	800	2	4	65000	1	2.2	84	DN100	4150	7480	3770	1840	4220
ZNX-870	870	2	4	65000	1	2.2	84	DN100	4680	8010	3770	1840	4450
ZNX-980	980	2	4	65000	1	2.2	84	DN125	5120	8450	3770	1840	4450
ZNX-1100	1100	2	5.5	75000	1	3	120	DN125	5360	9430	3770	2200	4220
ZNX-1250	1250	2	5.5	75000	1	3	120	2-DN100	5980	10050	3770	2200	4450
ZNX-1380	1380	2	5.5.	87000	1	4	170	2-DN100	6230	11270	4846	2200	4350
ZNX-1520	1520	2	7.5	100000	1	4	170	2-DN100	6560	11590	4846	2200	4650
ZNX-1680	1680	3	4	65000	1	4	170	2-DN100	7850	13730	5610	2200	4350
ZNX-1840	1840	3	5.5	75000	1	4	170	2-DN125	8450	14330	5610	2200	4650
ZNX-2010	2010	3	5.5	75000	1	4	170	4-DN80	9180	15380	6046	2200	4650
ZNX-2245	2245	3	7.5	87000	1	5.5	230	4-DN80	9780	17340	7230	2200	4650
ZNX-2450	2450	4	5.5	75000	2	3	120	4-DN100	10860	18520	7450	2200	4650
ZNX-2600	2600	4	5.5	75000	2	4	170	4-DN100	11480	20880	9030	2200	4965
ZNX-2820	2820	4	5.5	75000	2	4	170	4-DN100	11720	21120	9030	2200	4965

Notes:

1.Do not use for construction. This brochure includes data current at the time of publication which should be reconfirmed at the time of purchase

2.All location dimensions for coil connections are approximate and should not be used for prefabrication of connecting piping