Evaporative condenser

description

DLX evaporative condenser is a new energy-saving environmentally friendly condenser that has been successfully developed on the basis of fully absorbing domestic foreign heat exchange technology updating improving.

It is used in the fields of chemical, pharmaceutical, industrial refrigeration low-temperature processing of beer, beverages, food, cold storage, building air conditioning.

DLX evaporative condenser uses water air as the cooling medium to exchange heat with the high-temperature gaseous refrigerant in the coil to condense the high-temperature gaseous refrigerant into a liquid state. The cooling water is pumped to the upper part of the condensing coil by the circulating water, sprayed on the outer surface of the condensing tube group through nozzles, forms a thin water film to flow downwards. At the same time, under the action of the fan, the inside of the condenser becomes negative pressure to accelerate the surface of the coil The evaporation of water in the water film absorbs a large amount of heat to condense the high-temperature, high-pressure refrigerant gas in the tube into a liquid. The fan discharges the evaporated hot humid gas into the atmosphere, the tiny water droplets in the hot humid gas are discharged into the collecting pool through the high-efficiency water collector. The high-temperature cooling water that has been evaporated flows into the packing layer the incoming air performs heat exchange, turning into low-temperature cooling The water is re-introduced into the spray water pipe by the circulating water pump to circulate.

DLX standard series evaporative condenser

model	Nominal heat rejection KW	Axial Fan			Circulating pump		NH3 Charge KG	weight
model	Nominal heat rejection KW	Number of units	Air volume m³/h	power KW	flow m³/h	power KW	NH3 Charge KG	net weight KG	run KG
DLX-375	375	1	60000	4	45	1.5	32	3785	4835
DLX-430	430	1	60000	4	45	1.5	40	3990	5040
DLX-475	475	1	60000	4	45	1.5	48	4225	5275
DLX-495	495	1	65000	5.5	45	1.5	48	4305	5355
DLX-525	525	1	75000	5.5	65	2.2	49	4400	5670
DLX-550	550	1	62000	4	65	2.2	61	4800	6070
DLX-595	595	1	75000	5.5	65	2.2	61	4895	6165
DLX-670	670	1	75000	5.5	65	2.2	73	5240	6510
DLX-700	700	1	75000	5.5	65	2.2	73	5750	7375
DLX-735	735	1	87000	7.5	65	2.2	73	5850	7460
DLX-870	870	2	2×60000	2×4	100	3	81	6655	8755
DLX-900	900	2	2×65000	2×5.5	100	3	81	6830	8930
DLX-960	960	2	2×60000	2×4	100	3	97	7120	9220
DLX-1000	1000	2	2×65000	2×5.5	100	3	97	7310	9410
DLX-1050	1050	2	2×72000	2×7.5	100	3	97	7390	9490
DLX-1165	1165	2	2×62000	2×4	130	4	124	8065	11285
DLX-1285	1285	2	2×75000	2×5.5	130	4	124	8220	11440
DLX-1335	1335	2	2×87000	2×7.5	130	4	124	8400	11620
DLX-1420	1420	2	2×75000	2×5.5	130	4	149	8875	12095
DLX-1490	1490	2	2×87000	2×7.5	130	4	149	9050	12270
DLX-1575	1575	3	3×60000	3×4	130	4	164	9350	12500
DLX-1620	1620	3	3×65000	3×5.5	130	4	164	9600	12750
DLX-1690	1690	3	3×72000	3×7.5	130	4	164	9765	12920
DLX-1710	1710	3	3×75000	3×5.5	170	5.5	170	10420	14560
DLX-1765	1765	3	3×87000	3×7.5	170	5.5	170	10640	14780
DLX-1935	1935	3	3×75000	3×5.5	170	5.5	186	11600	15740
DLX-2010	2010	3	3×87000	3×7.5	170	5.5	186	11820	15960
DLX-2140	2140	3	3×75000	3×5.5	170	5.5	224	12540	16680
DLX-2245	2245	3	3×87000	3×7.5	170	5.5	224	12780	16920

Specifications technical parameters

Selection method guidance

(1) Confirm use conditions: condensing temperature, wet bulb temperature.

(2) Calculate the total heat output of the system.

(3) Check Table 3 Table 4, the heat rejection correction coefficient.

(4) The total heat output multiplied by the correction coefficient is the condensing load under operating conditions.

(5) Check the selection of Table 1 Table 2, the selected heat output is less than the corrected heat output data.

Selection example

(1) Conditions of use: condensing temperature 36℃, bulb temperature 28℃.

(2) The total heat output of the ammonia refrigeration system is 900KW. (Compressor refrigeration + compressor shaft power = total heat rejection)

(3) Check Table 3, the correction coefficient of heat rejection is 1.22.

(4) Calculate the actual load of the condenser 900KW×1.22=1098KW.

(5) Check Table 1 Table 2, DLX-1165 DLX-1155A evaporative condenser, its heat output is more than 1098KW.

R717 calorific value correction coefficient table table 3

Condensation temperature（℃）	Air inlet wet bulb temperature（℃）
Condensation temperature（℃）	10	12	14	16	17	18	19	20	21	22	23	24	25	26	27	28	29
29	0.72	0.78	0.86	0.96	1.01	1.09	1.18	1.30	1.43	1.60	1.84	2.16	2.66	--	--	--	--
30	0.68	0.73	0.81	0.88	0.94	1.00	1.07	1.15	1.27	1.40	1.59	1.79	2.13	--	--	--	--
31	0.64	0.68	0.74	0.82	0.86	0.91	0.97	1.04	1.12	1.22	1.36	1.52	1.74	2.06	--	--	--
32	0.61	0.65	0.69	0.74	0.80	0.84	0.89	0.95	1.02	1.10	1.20	1.34	1.49	1.70	2.02	--	--
33	0.57	0.61	0.65	0.70	0.73	0.78	0.82	0.87	0.92	0.99	1.07	1.16	1.29	1.45	1.66	1.96	--
34	0.55	0.58	0.62	0.66	0.69	0.72	0.76	0.80	0.85	0.90	0.96	1.04	1.14	1.27	1.42	1.63	--
35	0.52	0.54	0.58	0.62	0.64	0.67	0.70	0.73	0.78	0.83	0.88	0.94	1.02	1.11	1.23	1.37	1.59
36	0.50	0.52	0.55	0.59	0.61	0.63	0.66	0.69	0.72	0.75	0.81	0.86	0.92	1.00	1.09	1.22	1.35
37	0.47	0.49	0.52	0.55	0.57	0.59	0.61	0.64	0.67	0.70	0.73	0.79	0.84	0.90	0.97	1.06	1.21
38	0.45	0.47	0.50	0.53	0.55	0.56	0.58	0.60	0.62	0.65	0.98	0.72	0.76	0.82	0.88	0.96	1.04
39	0.43	0.45	0.47	0.50	0.52	0.53	0.54	0.56	0.58	0.31	0.63	0.67	0.70	0.74	0.80	0.86	0.95
40	0.42	0.43	0.45	0.48	0.49	0.50	0.52	0.53	0.55	0.58	0.60	0.62	0.66	0.69	0.73	0.78	0.85
41	0.40	0.41	0.43	0.45	0.46	0.47	0.49	0.50	0.52	0.54	0.56	0.58	0.61	0.64	0.67	0.71	0.76
42	0.39	0.40	0.41	0.43	0.44	0.45	0.47	0.48	0.49	0.51	0.53	0.55	0.57	0.60	0.62	0.66	0.70
43	0.37	0.38	0.39	4.41	0.42	0.43	0.44	0.45	0.46	0.48	0.50	.051	0.53	0.55	0.58	0.61	0.65
44	0.36	0.37	0.38	0.39	0.40	0.41	0.42	0.43	0.44	0.46	0.47	0.49	0.50	0.52	0.54	0.57	0.60
45	0.34	0.35	0.36	0.37	0.38	0.39	0.40	0.41	0.42	0.43	0.44	0.46	0.47	0.49	0.51	0.53	0.56

R22 R134a heat rejection correction coefficient table

Condensation temperature （℃）	Air inlet wet bulb temperature（℃）
Condensation temperature （℃）	10	12	14	16	18	19	20	21	22	23	24	25	26	28
29	0.86	0.94	1.03	1.15	1.37	1.43	1.43	1.56	1.73	1.95	2.23	2.64	3.24	--
30	0.77	0.83	0.90	0.99	1.10	1.17	1.17	1.27	1.37	1.50	1.65	1.87	2.14	2.53
33	0.69	0.73	0.79	0.86	0.94	1.00	1.00	1.05	1.12	1.21	1.31	1.43	1.59	1.78
35	0.62	0.66	0.70	0.76	0.83	0.86	0.86	0.91	0.95	1.01	1.08	1.16	1.26	1.38
37	0.57	0.60	0.63	0.67	0.72	0.76	0.76	0.79	0.83	0.84	0.92	0.98	1.03	1.11
39	0.53	0.55	0.58	0.61	0.65	0.67	0.67	0.69	0.72	0.76	0.80	0.84	0.88	0.93
41	0.49	0.50	0.53	0.55	0.58	0.60	0.60	0.62	0.64	0.67	0.69	0.72	0.77	0.80
43	0.45	0.47	0.49	0.51	0.53	0.55	0.55	0.56	0.58	0.60	0.62	0.64	0.67	0.67
45	0.42	0.43	0.45	0.47	0.49	0.50	0.50	0.51	0.53	0.54	0.56	0.57	0.59	0.62