Steam Heat Exchanger

Sanjack has more than 30 year’s experiences and equipped with class I, II & III pressure vessel production certificate. Leading products include tank, tower, furnace and structure parts. The annual production capacity is 10,000 tons.

  • In 1997, Sanjack obtained the Grade 3 installation qualification
  • In 2004, Obtained crane installation and maintenance license
  • In 2005, obtained the B-class pressure pipe component manufacturing license;
  • In 2007, we obtained the D-class pressure vessel design license
  • In 2008, we obtained the A-class boiler design and manufacturing qualification;
  • In 2012, Sanjack has obtained ASME U&S qualification;

Steam heat exchangers are essential components in many industrial processes, providing efficient heat transfer between fluids. These devices use steam as a heating medium to transfer thermal energy from a hot fluid to a cooler fluid, maximizing efficiency and minimizing energy wastage.

1.Types of Steam Heat Exchangers:

1). Shell-and-Tube Heat Exchanger:

The most common and versatile type of steam heat exchanger is the shell-and-tube configuration. It consists of a shell filled with multiple tubes through which the fluids flow. The hot fluid passes through these tubes, while steam flows on the shell side. This design allows for efficient heat exchange due to the large surface area created by the many tubes.

2). Plate Heat Exchanger:

Plate heat exchangers are compact and typically used for applications where space is limited. They consist of a series of parallel plates, which facilitate heat transfer between the fluids. Steam flows between alternate plates, and the hot and cold fluids flow on either side of the plates, thereby maximizing heat transfer efficiency.

3). Double Pipe Heat Exchanger:

Double pipe heat exchangers are simple and cost-effective devices that consist of two separate pipes, one within the other. The hot fluid flows through the inner pipe, and steam circulates around the outer pipe. This design allows for a high degree of heat transfer and is particularly suitable for low-flow applications.

2.Working Principles

In a steam heat exchanger, the steam serves as the heating medium. It transfers thermal energy to the hot fluid by condensing inside the exchanger. The steam releases its latent heat of vaporization during condensation, resulting in efficient heat transfer. The condensate is then drained out, while the cooled and transferred fluid exits the exchanger.

Steam heat exchangers find extensive use in various industries due to their exceptional heat transfer capabilities. Some common applications include:

  1. Power Plants: Steam heat exchangers are crucial in power plants for transferring heat from the high-pressure steam turbine condensers to a water-source or air-source heat sink.
  2. Petrochemical Processing: These exchangers play a vital role in heat recovery systems, whereby they transfer waste heat to preheat feedwater, saving energy and reducing operating costs.
  3. HVAC Systems: Steam heat exchangers are used in heating, ventilation, and air conditioning systems for space heating or cooling.

Sanjack steam heat exchanger is used as a link of the well testing unit, mainly for well testing and well washing operations.

1. Efficient Heat Transfer: Steam heat exchangers provide efficient heat transfer due to the high latent heat of condensation of steam.
2. Versatility: They can handle a wide range of temperatures and pressures and are compatible with various fluids.
3. Compact Design: Some types, such as plate heat exchangers, offer compact designs, ideal for situations with limited space.

Model M LDSWE-15 LDSWE-11 LDSWE-11 8
Applied Environment Acid-stage Acid-stage Acid-stage Acid-stage
Size 42in.×15 ft. 42in.×15ft. 48in.x18ft. 48in. ×18 ft.
Pipe Pressure 5000 psig 10000 psig 10000 psig 15000 psig
Shell Pressure 250 psi 250 psi 250 psi 250 psi
Throttle valve size 3/4” 3/4” 3/4” 3/4 ‘
Inlet size 3/4” 3/4” 3/4” 3/4”
outlet size 3/4” 3/4” 3/4” 3/4”
Standard NACE MR0175;APl;ASM E;ANSl;DNV(for offShore);ISO

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