The spiral plate heat exchanger has been proven through years of practical use to be an efficient heat exchange equipment, suitable for applications in industries such as chemistry, petroleum, solvents, pharmaceuticals, food, light industry, textile, metallurgy, steel rolling, coking, etc. The heat exchanger is a liquid-liquid and steam water heat exchanger designed and manufactured through unique optimization, drawing on advanced international technology. The product structure and process are in accordance with the standards of the Swedish company "Alfarada". The spiral plate end face adopts folded argon arc welding, and the "top distance column" special process is a capacitor storage contactor, which improves the internal and external quality and is recognized by "Baosteel", and can replace imports.

The non detachable spiral plate heat exchanger is designed according to the JB/TQ724-89 non detachable spiral plate heat exchanger standard of the Ministry of Machinery, with basic parameters and dimensions specified. It has the advantages of simple manufacturing, low cost, small size, and good heat transfer performance, but also has its shortcomings, such as inability to perform mechanical cleaning and difficulty in maintenance if damaged.

Structure and performance

1. This equipment is suitable for liquid-liquid, gas gas, and gas-liquid convective heat transfer. It can be used for steam condensation and liquid evaporation heat transfer, and can be selected for industrial sectors such as chemical, petroleum, pharmaceutical, machinery, power, light industry, and textile.

2. This equipment is made of two steel plates rolled together, forming two uniform spiral channels. The two types of heat transfer cut-off can perform full countercurrent flow, suitable for small temperature difference heat transfer, easy to recover low-temperature heat sources, and can accurately control the outlet temperature.

3. The connecting pipe on the shell is a tangential structure with low local resistance. The curvature of the spiral channel is uniform, and there is no significant reversal of fluid flow inside the equipment, resulting in low overall resistance. Therefore, the design flow rate can be increased to have higher heat transfer capacity.

4. The end face of the spiral channel is welded and sealed, with good sealing performance and reliable structure.

5. Not easy to maintain, especially when there are problems with the internal panels, it is extremely difficult to repair. Some factories remove all the welds on both ends of the equipment, flatten and weld the panels again, and then roll them up. This consumes too much time, so it is very important to use spiral plate heat exchangers for corrosion prevention.

6. Mechanical cleaning cannot be carried out. Production practice has proven that spiral plate heat exchangers are less prone to clogging compared to general tube heat exchangers, especially suspended particles such as sediment and small shells that are less likely to deposit in the spiral channel. Analyze the reasons for this; One reason is that it is the deposition of single channel impurities in the channel, and once a circulating flow is formed, it will increase to the point where it will be washed away. The other reason is that there are no blind spots in the spiral channel, and impurities are easily washed out.

7. Because there are fixed distance columns supporting the spacing between the spiral channels, no fibrous impurities (such as cotton yarn, grass sticks, leaves, etc.) are allowed to enter the interior of the heat exchanger.

8. Strictly control the outlet temperature of the cooling water below the scaling temperature.

9. The commonly used cleaning method is steam blowing or alkali washing. Steam blowing should be directed towards the connecting pipe to blow out impurities from the equipment. Many manufacturers consider this to be an effective method.

Detachable (Type II, Type III) spiral plate heat exchanger

The structural principle is basically the same as that of a non detachable heat exchanger, but the channels can be disassembled for cleaning and sealed with heads at both ends. Especially suitable for liquid to liquid exchange with viscous and precipitated liquids, as well as gas-liquid and vapor condensation. Due to the need to add components such as heads and flanges to detachable heat exchangers, the equipment cost is slightly higher than that of non detachable heat exchangers.

Basic Parameters

The nominal pressure PN of spiral plate heat exchangers is specified as 0.6, 1, 1.6, and 2.5 Mpa (i.e. original 6, 10, 16, and 25 kg/cm2). The test pressure is 1.25 times the working pressure.

The material of the contact part between the spiral plate heat exchanger and the medium is Q235A and Q235AF carbon steel, and SUS321 and SUS304 stainless steel acid steel. Other materials can be selected according to user requirements.

Allowable working temperature: t=0~+350 ℃ for carbon steel, t=-40~500 ℃ for stainless steel acid steel, and the temperature and pressure range shall be in accordance with the relevant regulations for pressure vessels. When selecting this equipment, appropriate process calculations should be carried out to achieve turbulent flow in the fluid channel of the equipment. (Generally, the liquid flow rate is 1m/Sec and the gas flow rate is 10m/Sec).

A single device cannot meet the usage requirements, and multiple devices can be combined for use, but the combination must comply with the following regulations:

Parallel combination, series combination: equipment and channel spacing are the same. Mixed combination: one channel in parallel and one channel in series.

Stainless acid resistant steel PN0.6, 1.6MPa non detachable (Type I) spiral plate heat exchanger.

Stainless acid resistant steel non detachable (Type I) spiral plate heat exchanger Carbon steel non detachable (Type I) spiral plate heat exchanger

Nominal heat exchange area m2	Channel spacing mm	calculate heat transfer area m2	Current Speed At 1m/cs Processing capacity m3/h	Take over nominal diameter	model	Weight (kg)
						I 6B type	Type I 16B
1	6	1.0	3.89	40	I 6,I 16B1-0.2/300-6	44	50
2	6	2.1	3.89	40	I 6,I 16B2-0.2/400-6	78	85
4	6	4.4	8.2	50	I 6,I 16B4-0.4/400-6	131	135
	10	4.5	17.3	80	I 6,I 16B4-0.5/450-10	129	133
	10	4.8	13.7	70	I 6,I 16B4-0.4/500-10	161	205
8	6	7.3	8.21	50	I 6,I 16B8-0.4/500-6	212	215
	10	7.85	17.3	80	I 6,I 16B8-0.5/550-10	235	273
	10	7.3	20.90	80	I 6,I 16B8-0.6/500-10	237	275
10	6	11.1	8.21	50	I 6,I 16B10-0.4/600-6	295	355
	10	11.5	17.3	80	I 6,I 16B10-0.5/650-10	315	405
	10	11.2	20.90	80	I 6,I 16B10-0.6/600-10	305	395
15	6	16.9	12.54	70	I 6,I 16B15-0.6/600-6	415	490
	10	14.72	17.3	80	I 6,I 16B15-0.5/760-10	405	575
	10	15.0	28.1	80	I 6,I 16B15-0.8/600-10	400	570
	14	15.6	39.3	100	I 6,I 16B15-0.8/700-14	505	680
20	6	21.7	8.21	50	I 6,I 16B20-0.4/800-6	540	710
	10	21.0	20.90	80	I 6,I 16B20-0.6/800-10	555	735
	14	20.9	39.30	100	I 6,I 16B20-0.8/800-14	660	830
25	10	26.6	29.90	80	I 6,I 16B25-0.6/900-10	610	950
	14	26.9	39.20	100	I 6,I 16B25-0.8/900-14	720	1060
30	10	28.2	28.10	100	I 6,I 16B30-0.8/800-14	750	1180
	14	32.2	39.20	100	I 6,I 16B30-0.8/1000-14	980	1370
40	10	45.4	35.30	100	I 6,I 16B40-1.0/900-10	1130	1515
	14	40.2	19.4	125	I 6,I 16B40-1.0/1000-14	1200	1630
50	10	53.9	35.3	100	I 6,I 16B50-1.0/1000-14	1360	1755
60	10	61.05	35.3	100	I 6,I 16B60-1.0/1100-10	1920	2112
	14	60.08	49.40	125	I 6,I 16B60-1.0/1200-14	2000	2200
80	10	81.83	35.3	100	I 6,I 16B80-1.0/1200-10	2560	2816
	14	80.9	49.40	125	I 6,I 16B80-1.0/1400-14	2667	1934
100	10	101.9	35.3	100	I 6,I 16B100-1.0/1300-10	3200	3520
	14	100.06	49.40	125	I 6,I 16B100-1.0/1500-14	3333	3666
120	10	115.5	35.3	100	I 6,I 16B120-1.0/1500-10	3870	4257
	14	119.0	49.40	125	I 6,I 16B120-1.0/1700-14	4020	4422
130	14	128.80	49.4	125	I 6,I 16B130-1.0/1750-14	4241	4665
	18	129.09	63.5	150	I 6,I 16B130-1.0/1967-18	4462	4908
150	14	148.1	49.4	125	I 6,I 16B150-1.0/1890-14	4702	5172
	18	148.2	63.5	150	I 6,I 16B150-1.0/2010-18	4962	5458

Nominal heat exchange area m2	Channel spacing mm	Calculate the heat exchange area m2	Current Speed At 1m/cs processing capacity m3/h	Take over nominal diameter	model	Weight (kg)
						Type I 6T	Type I 16T
6	6	6.5	8.2	50	I 6, I 16T6-0.4/500-6	230	280
	10	5.8	13.7	70	I 6, I 16T6-0.4/600-10	285	350
8	6	8.7	8.2	50	I 6, I 16T8-0.4/600-6	370	430
	10	7.7	17.3	80	I 6, I 16T8-0.5/660-10	395	454
	10	8.7	13.7	70	I 6, I 16T8-0.4/700-10	405	465
10	6	9.9	12.5	70	I 6, I 16T10-0.6/500-6	335	395
	10	9.2	17.30	80	I 6, I 16T10-0.5/660-10	472	543
	10	8.8	20.9	80	I 6, I 16T10-0.6/600-10	410	495
15	6	12.5	8.2	50	I 6, I 16T15-0.4/700-6	510	580
	10	14.64	17.30	80	I 6, I 16T15-0.5/800-10	679	781
	10	13.3	20.9	80	I 6, I 16T15-0.6/700-10	575	680
	14	13.8	29.2	100	I 6, I 16T15-0.6/800-14	640	755
20	6	19.0	12.5	70	I 6, I 16T20-0.6/700-6	730	845
	10	18.3	28.1	80	I 6, I 16T20-0.8/800-10	735	870
	14	18.5	39.3	100	I 6, I 16T20-0.8-800-14	810	960
25	10	23.1	28.1	100	I 6, I 16T25-0.8/800-10	935	1120
	14	23.3	49.4	125	I 6, I 16T25-1.0/800-14	1000	1165
30	10	29.0	35.3	100	I 6, I 16T30-1.0/800-10	1190	1470
	14	28.1	59.4	125	I 6, I 16T30-1.2/800-14	1170	1425
40	10	40.9	20.9	80	I 6, I 16T40-0.6/1200-10	1725	1885
	14	42.3	39.3	100	I 6, I 16T40-0.8/1200-14	1845	2110
	18	44.9	63.5	150	I 6, I 16T40-1.0/1200-18	2075	2405
50	10	46.2	35.5	100	I 6, I 16T50-1.0/1000-10	1800	2085
	14	53.2	49.4	125	I 6, I 16T50-1.0/1200-14	2490	2595
	18	54.0	76.3	150	I 6, I 16T50-1.2/1200-18	2435	2820
60	10	56.8	20.9	80	I 6, I 16T60-0.6/1400-10	2330	2635
	14	60.7	39.3	100	I 6, I 16T60-0.8/1400-14	2595	2850
	18	59.6	63.5	150	I 6, I 16T60-1.0/1400-18	2730	3150
80	10	76.4	28.1	100	I 6, I 16T80-0.8/1400-10	2970	4060
	14	78.6	39.3	100	I 6, I 16T80-0.8/1600-14	3120	3605
	18	82.0	63.5	150	I 6, I 16T80-1.0/1600-18	3580	4205
100	10	101.4	28.1	100	I 6, I 16T100-0.8/1600-10	3905	4330
	14	98.8	49.4	125	I 6, I 16T100-1.0/1600-14	4040	4585
	18	98.8	76.3	150	I 6, I 16T100-1.2/1600-18	4200	4930
120	10	115.5	42.5	125	I 6, I 16T120-1.2/1400-10	4350	4980
	14	119.0	59.4	125	I 6, I 16T120-1.2/1600-14	4770	5440
150	14	149.15	59.4	125	I 6, I 16T150-1.2/1800-14	6431	7396
	18	149.86	76.3	150	I 6, I 16T150-1.2/2000-18	6643	7639
	20	147.6	83.81	150	I 6, I 16T150-1.2/2050-20	6769	7784