TLV SR-3, SR-8 Instruction Manual
172-65207A-08 (SR-3/SR-8) 14 January 2021
Steam Condensing
Heat Exchanger
SR-3 / SR-8
Manufacturer
881 Nagasuna, Noguchi, Kakogawa, Hyogo, 675-8511, Japan
Tel: [81]-(0)79-422-1122 Fax: [81]-(0)79-422-0112
Copyright © 2021 by TLV CO., LTD. All rights reserved
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Contents
Introduction .............................................................................. 1
Safety Considerations .............................................................. 2
Product Description .................................................................. 4
Intended Use ........................................................................ 4
System Principle ................................................................... 5
Specifications ........................................................................... 6
Configuration ............................................................................ 7
Installation ................................................................................ 8
Precautions before Installation ............................................. 8
Installation example for piping to/from the SR unit ............. 10
Piping Installation 1: Waste Steam Inlet Piping .................. 11
Piping Installation 2: Condensate Outlet Piping, Blowdown
Piping and Overflow Piping for Exhaust Pipe ........................ 12
Piping Installation 3: Exhaust Piping ................................... 13
Piping Installation 4: Water Inlet and Outlet Piping ............. 16
Operation ............................................................................... 17
Inspection and Maintenance .................................................. 19
Troubleshooting ..................................................................... 20
TLV EXPRESS LIMITED WARRANTY ..................................... 21
Introduction
Thank you for purchasing the TLV SR steam condensing heat exchanger.
This product has been thoroughly inspected before being shipped from the
factory. When the product is delivered, before doing anything else, check the
specifications and external appearance to make sure nothing is out of the
ordinary. Also be sure to read this manual carefully before use and follow the
instructions to be sure of using the product properly.
If detailed instructions for special order specifications or options not contained
in this manual are required, please contact TLV for full details.
This instruction manual is intended for use with the model(s) listed on the
front cover. It is necessary not only for installation but for subsequent
maintenance and troubleshooting. Please keep it in a safe place for future
reference.
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Indicates a DANGER, WARNING or CAUTION item.
DANGER
Indicates an urgent situation which poses a threat of death or
serious injury
WARNING
Indicates that there is a potential threat of death or serious injury
CAUTION
Indicates that there is a possibility of injury or equipment /
product damage
CAUTION
Install properly and DO NOT use this product outside the
recommended operating pressure, temperature and other
specification ranges.
Improper use may result in such hazards as damage to the product
or malfunctions that may lead to serious accidents. Local
regulations may restrict the use of this product to below the
conditions quoted.
Use hoisting equipment for heavy objects (weighing
approximately 20 kg (44 lb) or more).
Failure to do so may result in back strain or other injury if the object
should fall.
Take measures to prevent people from coming into direct
contact with product outlets.
Failure to do so may result in burns or other injury from the
discharge of fluids.
When disassembling or removing accessories used with the
product, wait until the internal pressure equals atmospheric
pressure and the surface of the product has cooled to room
temperature.
Disassembling or removing accessories from the product when it is
hot or under pressure may lead to discharge of fluids, causing
burns, other injuries or damage.
Safety Considerations
Read this section carefully before use and be sure to follow the instructions.
Installation, inspection, maintenance, repairs, disassembly, adjustment and valve
opening/closing should be carried out only by trained maintenance personnel.
The precautions listed in this manual are designed to ensure safety and prevent
equipment damage and personal injury. For situations that may occur as a result
of erroneous handling, three different types of cautionary items are used to
indicate the degree of urgency and the scale of potential damage and danger:
DANGER, WARNING and CAUTION.
The three types of cautionary items above are very important for safety: be sure to
observe all of them as they relate to installation, use, maintenance, and repair.
Furthermore, TLV accepts no responsibility for any accidents or damage occurring
as a result of failure to observe these precautions.
Symbols
Continued on the next page
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CAUTION
Be sure to use only the recommended components when
repairing the product, and NEVER attempt to modify the
product in any way.
Failure to observe these precautions may result in damage to the
product and burns or other injury due to malfunction or the
discharge of fluids.
Do not use excessive force when connecting threaded pipes to
the product.
Over-tightening may cause breakage leading to fluid discharge,
which may cause burns or other injury.
In case of unexpected steam flow, connect piping from the
exhaust outlet to a safe area.
Unexpectedly high steam volumes may cause high-temperature
condensate to be discharged through the exhaust outlet, which may
in turn cause burns or other injury.
Operate valves slowly and carefully.
Opening or closing valves too quickly may cause water hammer to
occur, the impact of which could cause damage to equipment.
Use only under conditions in which no freeze-up will occur.
Freezing may damage the product, leading to fluid discharge, which
may cause burns or other injury. If the water seal or inside of the
tube freeze, the inside of the product may be pressurized which
could cause problems on equipment or devices that are connected
to the product.
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Steam Trap
Condensate
Recovery
Condensate
Recovery Tank
Bad effect on products from
flash steam
Bad image
to local
residents
Bad effect on
building/
equipment
from humidity
Eliminate
flash steam
Condensate
Recovery
Condensate
Condensate
Recovery Tank
Recovery Tank
Steam Trap
Energy-saving
effect
Use of
hot water
Product Description
Intended Use
The SR-3/SR-8 is an atmospheric indirect heat exchanger for recovering heat energy
from waste or flash steam for applications where the steam cannot otherwise be utilized.
By using this product for waste heat recovery or steam condensation, system energy
efficiency, work environment, and plant scenery can be improved without increasing
back pressure on steam-using equipment.
Usages
Flash steam from applications such as steamers, sterilizers and vulcanizers
where the steam cannot otherwise be utilized and released to the atmosphere
Flash steam escaping from
hot water/processing tanks
Flash steam escaping from
condensate tanks into the
atmosphere
NOTE: Limited to applications
in which steam
incorporates no air or
non-condensable gases.
Improvement effect
Lower system steam usage
by collecting unusable
100 C (212 F) steam and
employing it in processes
such as water heating which
previously used main line
steam
Improves work environment
and plant scenery by
eliminating clouds of steam
generated around the plant
Because waste steam
processing can be carried
out indoors, it is not
necessary to construct
outdoor duct piping; further
reducing costs
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Exhaust
Outlet
Hot Water
Outlet
Heat Transfer Coil
(Stainless)
Cold Water
Inlet
Condensate Outlet
Waste
Steam
Inlet
System Principle
Because the SR-3/SR-8 steam condensing heat exchanger does not have any valve
parts on the Waste Steam Recovery side, it does not create any back-pressure on
upstream equipment.
For this reason, it can be directly connected to and used with feed water tanks and
other vessels that do not meet pressure vessel regulations in most locations. Consult
TLV for details.
Concerning the construction of the unit, there is a condensate outlet in the base of
the heat exchanger. This allows a water seal to be maintained which directly
prevents steam leakage. Thus, with a similar construction to closed type heat
exchangers, it can ensure an equivalent level of high efficiency heat exchange.
Operation flow of Steam Condensing Heat Exchanger SR-3/SR-8 (hereafter, SR)
① Waste steam flows into the SR from
equipment connected to the steam inlet.
② Waste steam which has flowed into the
SR (shell side) transfers heat to cold
water inside the heat transfer coil.
③ Upon transferring heat the waste
steam condenses and drips down to
collect in the base of the SR.
Furthermore, since condensing steam
inside an airtight space produces a fall
in pressure, the inside of the SR is
maintained at atmospheric pressure or
a very slight vacuum (-0.5 kPaG
(-7 psi)) which ensures a smooth influx
of waste steam.
④ Condensate accumulated in the base
⑤ Furthermore, after waste steam
⑥ If the cold water flow rate decreases, or else the ability of the cold water to
of the tank seals the outlet, and it
becomes similar in structure to a
pseudo closed type heat exchanger
transfers heat away and becomes
condensate, it overflows and is
discharged to the outside
absorb heat is surpassed causing an influx of waste steam; even if waste steam
accumulates inside the SR and the pressure begins to rise; the instant that the
pressure rises above 0.5 kPaG (7 psi) (a water seal with 50 mm (2 in) of head
pressure) the water seal will be broken and waste steam will be discharged to
the atmosphere through the exhaust outlet.
(pressure will not accumulate inside the unit)
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Install properly and DO NOT use this product outside the recommended
operating pressure, temperature and other specification ranges.
Improper use may result in such hazards as damage to the product or
malfunctions which may lead to serious accidents. Local regulations
may restrict the use of this product to below the conditions quoted.
CAUTION
Use only under conditions in which no freeze-up will occur. Freezing may
damage the product, leading to fluid discharge, which may cause burns
or other injury. If the water seal or inside of the tube freeze, the inside of the
product may be pressurized which could cause problems on equipment
or devices that are connected to the product.
CAUTION
Maximum Operating
Pressure
Maximum Operating
Temperature
Heat Transfer Surface
Area
Maximum Steam
Flow Rate
Serial No.
Model
Specifications
Refer to the product nameplate for detailed specifications.
Do not install valves or orifices at the exhaust outlet, since the SR is an atmospheric
type heat exchanger.
172-65207MA-08 (SR-3/SR-8) 14 Jan 2021
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