Types of plates and their fields of application

Principle  «Off-Set» allows to create both symmetrical or asymmetrical channels (1)

Special relief of distribution site distributes  optimally heat-transfer agents (2)

 Easy fastening seal to the plate through the Clip sealing system with special clamps for optimal alignment and fixing plate package (3)

Double seal with piping leak completely prevents mixing of media in the passages (4)

Special edging relief of the plates provides the necessary rigidity of the plate package, and stable fixation of the seals in the provision of pressure on them during the operation of heat exchangers (5).

Most of the sizes of all the series of heat exchanger plates used in the manufacture of heat exchangers are of four different profiles: H, L, G, K. Corrugation on the profiles differs by groove width and angle of the chevron. The plates haveasymmetrical relief structure, due to which, unlike conventional symmetric reliefs, the number of possible combinations of heat exchange channels different heat transfer and hydraulic characteristics significantly increases.

Plate view from the seal: Profile H groove - wide the angle of the chevron - blunt Profile L groove - wide the angle of the chevron - acute Profile G groove - narrow the angle of the chevron - blunt Profile K groove - narrow the angle of the chevron - acute Series FP

Types of plate heat exchangers APV

The basis of heat exchangers of the TEPLOTEKS production is  standard series of plates of  the famous Danish company APV with a different profile of the working surface and an area of 0,018 m2 to 4.75 m2.

The channels formed by the plates APV, have a slightly larger cross section than those of  the other companies. Therefore, when using hot water supplies they are contaminated more slowly with poorly prepared  tap water.

All APV plates havedistribution area of coolant across the width of the channel that is very carefully done. Special notching allows you to align the resistance along the width of the channel and provides an even flow over the working surface of the plate.

The plates of the same size may have an angle of inclination of the corrugations to the horizontal axis 30o (the so-called "hard" plates) and 60o («soft" plates). Rigid plates are characterized with high thermal performance and greater pressure loss, soft plates - are characterized with less thermal performance and lower pressure losses. Hard and soft platesmay be used in one apparatus. This is another way to get as close to the set performance and acceptable pressure losses at a minimum heating surface.

"Teploteks APV" manufactures heat exchangers based on 16 types of plates APV (Table 1), specifically designed for the needs of the power system and industry. The unit capacity of the heat exchanger "Teploteks APV" is in the range from 20 kW to 60 MW and maximum operating pressure of 2.5 MPa (25 atm), the maximum operating temperature of 200 ˚C.

Типоразмерный ряд пластинчатых теплообменников ТЕПЛОТЕКС АПВ представлен в табл. 1

Standard series of plate heat exchangers TEPLOTEKS  APV is shown in Table. 1

								Gasket Material - NBR rubber
	Collapsible, one-way							Max. Operating Temperature - 110 °
	Material of plates - steel AISI 316							The gasket material - rubber EPDM.
	Platethickness - 0.5-0.7 mm							Max. Operating Temperature - 150 °
	Operating pressure - 1-2.5 MPa							The gasket material - rubber VITON
								. Max. Operating Temperature - 200 °
type of heat exchanger	U2	T4	TR1	SR2	H17	N35	Q030	Q055	Q080	A055	A085	J060	J107	B110	B205	S380
Max. flow rate, kg / s	1,83	4,82	5,56	11,8	22,2	30,6	47,1	47,1	47,1	103	103	247	247	415	415	1132
The diameter of the fittings, mm	20	25	32	50	65	80	100	100	100	150	150	200	200	300	300	500+
The surface of the plate, m2	0,02	0,04	0,06	0,17	0,17	0,35	0,3	0,55	0,8	0,55	0,85	0,52	0,99	1,1	2,05	3,8
Max. surface of the heat-exchanger, m2	1,13	2,12	4,27	8,43	8,67	52,5	60	149	200	165	255	204	387	600	1200	3080
Table 1 - Technical characteristics of plate heat exchangers, gasketed

*