loading
Sorting default
Filter not selected

Brazed heat exchangers SWEP

Sorting
Popular Brazed heat exchanger SWEP E5T Brazed heat exchanger SWEP E5T
in stock
Add to cart
3 210.00 грн
  • Type of: E
  • Maximum operating pressure: 10
  • Model: 5T
Brazed heat exchanger SWEP E6T Brazed heat exchanger SWEP E6T
in stock
Add to cart
3 450.00 грн
  • Type of: E
  • Maximum operating pressure: 10
  • Model: 6T
Brazed heat exchanger SWEP E8T Brazed heat exchanger SWEP E8T
in stock
Add to cart
4 800.00 грн
  • Type of: E
  • Maximum operating pressure: 10
  • Model: 8T
Brazed heat exchanger SWEP B5T Brazed heat exchanger SWEP B5T
in stock
Add to cart
4 100.00 грн
  • Type of: B
  • Maximum operating pressure: 52
  • Model: 5T
Popular Brazed heat exchanger SWEP B8T Brazed heat exchanger SWEP B8T
in stock
Add to cart
5 400.00 грн
  • Type of: B
  • Maximum operating pressure: 28
  • Model: 8T
Popular Brazed heat exchanger SWEP B10T Brazed heat exchanger SWEP B10T
in stock
Add to cart
6 560.00 грн
  • Type of: B
  • Maximum operating pressure: 50
  • Model: 10T
Brazed heat exchanger SWEP B15T Brazed heat exchanger SWEP B15T
in stock
Add to cart
8 020.00 грн
  • Type of: B
  • Maximum operating pressure: 20
  • Model: 15T
Popular Brazed heat exchanger SWEP B25T Brazed heat exchanger SWEP B25T
in stock
Add to cart
10 520.00 грн
  • Type of: B
  • Maximum operating pressure: 54
  • Model: 25T

Shown 8 from 108

show all

Brazed plate heat exchangers SWEP

A brazed heat exchanger is a type of plate heat exchanger, in which the heat exchange process between two separated, non-mixing mobile media (liquids or gases), having a temperature gradient between them, occurs through profiled steel plate surfaces.

Design and principle of operation of brazed heat exchangers

паяный теплообменник The device and the principle of operation of the brazed heat exchanger are not much different from the classic collapsible. Its heat exchange plates are also assembled into packages, where their profiled (corrugated) relief forms a volumetric network of slotted passage channels, the so-called "honeycomb" structure. During the manufacturing process of the brazed plate heat exchanger, this honeycomb structure is divided into two separate circulation loops for each of the media involved in the heat exchange.

The heat exchanger plates of the brazed heat exchanger are also manufactured by stamping, as a rule, from AISI 316 or SMO254 stainless steels (the second is for more severe operating conditions). By their structure, they differ in "left" and "right", which alternate in the package, and on "zero", which complete the package of plates on both sides.

The main difference between a brazed heat exchanger and a plate type (collapsible) heat exchanger is that the sealing of the circulation circuits of the honeycomb structure of the package of heat exchange plates in it is carried out not with polymer gaskets, but with a vacuum brazed seam made of copper Cu (copper brazed) or nickel Ni (nickel brazed, for aggressive media and more difficult working conditions). In addition to sealing the circuits, in the package of heat exchange plates, the brazed seams simultaneously act as a fastening element, allowing the design to abandon such details as guide brackets and tie rods of the supporting frame.

In addition to the package of working (channel-forming) plates, fastened together by vacuum brazing, the design of the brazed apparatus also includes the front and rear end plates, which form its conditional body, and connecting pipes of the choke or flange type. These structural elements are also soldered to the package, forming a single one-piece (non-separable) product.

The working scheme of a brazed heat exchanger, as a rule, provides for the passage (pumping) of coolants along their circuits in opposite directions (in counterflow), which achieves a high value of the heat transfer head. At the same time, various variants of profiling (corrugation) of the surface of the passage channels are designed to cause high turbulence of their flows, which further intensifies heat transfer. In addition to intensifying heat transfer, high flow turbulence in the channels of the brazed heat exchanger simultaneously performs the function of self-cleaning.

Advantages and Limitations of Brazed Heat Exchangers

Due to the fact that the metal-brazed seams of the heat exchangers are more mechanically strong паяные теплообменники and thermally resistant than polymer gaskets, brazed plate heat exchangers (compared to classic gasketed ones) have their main advantage - wider ranges of operating temperatures and pressures (technical characteristics), which are:

  • operating temperatures from - 160 to + 225 degrees C (for PHE up to +180 degrees C);
  • maximum working pressure - up to 100 bar and more (for PHE - up to 25 bar).

In addition, brazed heat exchangers are less metal-consuming than classic collapsible ones. Accordingly, they have the highest specific thermal power per unit of mass and volume, therefore, among all heat exchangers, brazed ones are one of the most compact. So, brazed heat exchangers, with the same thermal power, take up about two times less space than collapsible plate heat exchangers, and up to ten times less than shell-and-tube heat exchangers.

But for the increased range of technical characteristics, high efficiency of heat exchange and relatively small dimensions, brazed heat exchangers pay off by the fact that their design becomes:

  • non-separable, which excludes any other way of their maintenance, except for CIP (washing) chemical reagents, such as orthophosphoric acid or caustic soda;
  • non-repairable - when one of the coolants leaks through the soldered seam, or signs of internal leakage with mixing of media, such an apparatus, as a rule, is simply taken out of service;
  • since the brazed plate heat exchanger has a rigid structure, the maximum temperature difference between the hot and cold pipe should not exceed 100 degrees. C, in collapsible plate devices, the temperature difference can reach 180 degrees. WITH.

Due to the existing design features and limitations, brazed heat exchangers can be effectively and for a long time operated only with media that do not leave internal contamination or deposits, or whose deposits can be relatively easily dealt with by CIP cleaning. The list of such working environments includes:

  • alcohols and glycol mixtures;
  • pure mineral and synthetic oils;
  • industrial gases and their mixtures, including air;
  • freons and other refrigerants;
  • purified water.

Scope of application of SWEP brazed heat exchangers

SWEP company, one of the European manufacturers паяный пластинчатый теплообменник very high quality brazed heat exchangers, whose products are widely known and are very popular in the world, distinguishes the following main areas of application for their products:

A) at home and in various sectors of the economy:

  • air conditioning systems;
  • classic refrigeration units used in trade and warehousing;
  • absorption refrigerators (in which water and lithium bromide solution serve as heat carriers);
  • in heat pumps;
  • in combination with gas boilers in centralized heating systems;
  • in gas boilers for hot water supply;
  • in solar heating systems.

B) on technology and in industry:

  • in refrigerators and industrial refrigeration units;
  • in chemical and food reactors and coolers;
  • for cooling technical oils - industrial, motor, transmission, hydraulic;
  • air dryers for compressors;
  • in cooling systems for electronic equipment and industrial laser installations.

Overview of the range of SWEP brazed heat exchangers

паяный теплообменник цена The range of SWEP brazed heat exchangers is wide and varied, allowing you to choose a single or modular apparatus with a capacity of 2 kW to 6 MW, for various fields of application, operating conditions and working environments. In order to navigate in it, the model range of SWEP heat exchangers is divided into groups:

Type B - basic design, for general use, can be easily customized for specific operating conditions, used in domestic heating systems, for refrigeration systems, these are condensers or evaporators with a small package of plates (usually up to 30 pcs).

Type V - the design is specially optimized for use as evaporators, it allows to evenly distribute the coolant through the channels of the evaporator, eliminating the possibility of uneven freezing with subsequent formation of ice and damage to the heat exchanger.

Type P - for use in refrigeration evaporators and heat pumps, optimized for R410A refrigerant.

Type S - for use in refrigeration evaporators and heat pumps, optimized for R134A refrigerant.

Type VH is a high-performance evaporator for use in high-performance refrigeration plants and heat pumps, optimized for operation with R407C refrigerant.

Type QA - optimized for refrigerants R407C / R410A, for use in heat pumps with heat flux from 2 to 4 kW / m 2 .

Type DB is a double-circuit evaporator, in which the secondary circuit is in contact with the two primary circuits, which makes it particularly reliable. Due to its high reliability in maintaining the required operating mode, the DB evaporator is ideal for adaptive climate control systems, as well as food storage systems such as refrigerated trade cabinets and display cases. It is actively used in systems with two compressors.

Type DV is another variant of the highly reliable two-circuit evaporator, in which the secondary circuit is in contact with two primary circuits. It is characterized by a high uniformity of refrigerant distribution in the heat exchanger, which makes it possible to manufacture refrigeration systems with an increased cooling area.

Type DP is a variant of the robust double-circuit evaporator for climate control and food storage, which is optimized for the use of R410A refrigerant.

Type DS is a variant of the robust double-circuit evaporator for climate control and food storage, which is optimized for the use of R134A refrigerant.

Type E - has a very high heat transfer efficiency, it is used in water-to-water boilers characterized by low operating pressures (flow rates) and small temperature gradients between heat carriers.

Type BDW - with reinforced double heat exchanger plates, and ventilated spaces between them, having an outlet to the atmosphere. Such devices serve to guarantee the absence of internal leaks and mixing of media. When the medium breaks through one of the double walls, it enters the ventilated gap and becomes available for detection. This design is widely used in the pharmaceutical and food industries.

Type ADWIS is a revolutionary compact air dryer with built-in separator for use with air compressors.

Type M is not a fully brazed heat exchanger, but rather a hybrid small-sized heat exchanger for general use. In it, the plates in the package are sealed not with soldered seams, but with polymer gaskets, as in a classic plate collapsible apparatus. But due to its compactness, type M is built without a supporting frame structure, which is typical for brazed heat exchangers. Manufactured by OPEKS ENERGOSYSTEMY from SWEP components under the PTA (M) -10 brand.

Calculation of the brazed plate heat exchanger

паяный пластинчатый теплообменник купить The calculation of brazed heat exchangers and their selection from the available standard designs of SWEP heat exchangers is performed by heat power engineers of our enterprise, using software systems that provide high accuracy in determining all parameters of heat exchange equipment. To carry out such a calculation, first of all, it is necessary to know the purpose of the heat exchanger. Among the possible options, the following main directions stand out:

  1. general application;
  2. as an evaporator and economizer;
  3. as a condenser and desuperheater.

The initial data for the calculation are:

A) for brazed heat exchangers for general use:

  • Wednesday 1 and Wednesday 2;
  • temperatures at the entrance to the system and at the exit from it for each of the media;
  • power or media consumption;
  • maximum pressure drop for each of the media.

B) for use as an evaporator or economizer:

  • Wednesday 1 (evaporator) and Wednesday 2 (cooler);
  • power or media consumption;
  • temperature at the inlet and outlet of the system for the cooler;
  • pressure drop for the cooler;
  • boiling point of freon, overheating.

B) for use as a condenser and desuperheater:

  • Medium 1 (condenser) and Medium 2 (heater);
  • power or media consumption;
  • for Medium 1 - inlet temperature and condensation temperature, subcooling;
  • for Medium 2 - temperature at the inlet and outlet;
  • for Medium 2 - maximum pressure drop.
Read more
Brazed heat exchangers SWEP

All equipment catalog

Sorting
Selection by parameters

Type of

Maximum operating pressure

Model

Maximum volumetric flow

ApplyReset
Close
loading
loading