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SR-B 4
Instruction Manual
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TLV SR-B 1.5, SR-B 4 Instruction Manual

172-65603MA-07 (SR-B1.5/SR-B4) 8 October 2020
High-Temperature Waste Water Heat Exchanger
SR-B1.5 / SR-B4
Copyright © 2020 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 ................................................................................. 6
Installation ..................................................................................... 7
Precautions before Installation...................................................................... 7
Installation Example for Piping to/from the SR-B Unit .................................. 9
Piping Installation 1. Blowdown/High-Temp. Water Inlet Piping ................. 10
Piping Installation 2. Blowdown/High-Temp. Water Outlet, Overflow and
Body Blowdown Piping ............................................................................... 11
Piping Installation 3. Exhaust Piping ........................................................... 12
Piping Installation 4. Boiler Feed Water/Water Inlet and Outlet Piping ....... 15
Operation .................................................................................... 16
Inspection and Maintenance ....................................................... 18
Troubleshooting .......................................................................... 19
Product Warranty ................................ ........................................ 20

Introduction

Thank you for purchasing the TLV SR-B high-temperature waste water 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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Product Description

Bad image to local residents
Bad effect on building/equipment from humidity
Continuous blowdown from the boiler
Eliminate
flash steam
Energy-saving
effect
Use of
hot water
Continuous blowdown from the boiler

Intended Use

The SR-B1.5/SR-B4 is a high-temperature waste water heat exchanger for recovering heat energy from continuously discharged blowdown water from the boiler, or high-temperature water of 100 C (212 F) or more, which is usually wasted. By using this product for waste heat recovery, system energy efficiency, work environment, and plant scenery can be improved without increasing back pressure on the boiler or equipment.
Usages
High-temp. water generated
High-temp. condensate of
Waste heat from applications
NOTE: Limited to applications
Improvement effect
Fuel reduction is realized by
Heat cold water for use as hot
Improves work environment and plant scenery by eliminating clouds of steam
Confirm local regulations concerning boiler blowdown before using the product for this application.
by the continuous blowdown of the boiler
100 C (212 F) or more for which the water quality is inappropriate for condensate recovery
such as vulcanizers, sterilizers and autoclaves
with no air or non­condensable gases.
exchanging heat between the continuously discharged blowdown water from the boiler and the boiler feed water to increase the water supply temperature
water using high-temp. condensate of 100 C (212 F) or more for which the water quality is inappropriate for condensate recovery, or waste heat from applications such as vulcanizers, sterilizers and autoclaves
generated around the plant
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Exhaust
Outlet
Boiler Feed Water/ Hot Water Outlet
Boiler Feed Water/ Cold Water Inlet
Blowdown/
High-temp.
Water Inlet
6
1
2
3
5
4
Blowdown/
High-temp.
Water Outlet
Overflow Water Level
Water Level for Blowdown/High-temp. Water Outlet
6
Body
Blowdown
Outlet
Overflow
Outlet

System Principle

Because the hot water recovery side of the SR-B1.5/SR-B4 high-temperature waste water heat exchanger is open to the atmosphere, there is hardly any back-pressure (maximum 50 mmAq (0.07 psi)) on the boiler or the equipment where the high-temp. water is generated. For this reason, it can be used without the restrictions of pressure vessel regulations in most locations. Consult TLV for details.
Concerning the construction of the unit, there is a hot water outlet in the base of the heat exchanger. This allows a water seal to be maintained which prevents flash 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 high-temperature waste water heat exchanger SR-B1.5/ SR-B4 (hereafter, SR-B)
① High-temp. water flows into the SR-B
from equipment connected to the blowdown/high-temp. water inlet.
② High-temp. water and re-evaporated
steam from high-temp. water which has flowed into the SR-B (shell side) transfers heat to cold water inside the heat transfer coil.
③ Upon transferring heat the flash steam
that has recondensed and high-temp. water which has had its sensible heat consumed drops down to collect in the base of the SR-B.
Furthermore, since flash steam inside an airtight space produces a fall in pressure, the inside of the SR-B is maintained at atmospheric pressure or a very slight vacuum (-0.5 kPaG (-7 psi)) which ensures a smooth influx of high-temp. water.
④ High-temperature water accumulated in
the lower part of the tank seals the shell, and it becomes similar in structure to a pseudo closed type heat exchanger.
⑤ Once high-temp. water flows in and
accumulates up to the water level for the blowdown/high-temp. water outlet shown in the figure to the right, it will be discharged through the blowdown/high-temp. water outlet.
⑥ If the amount of high-temp. water increases such that it cannot be fully
discharged though the blowdown/high-temp. water outlet, and thus accumulates up to the overflow water level shown in the figure above, it will be discharged from the overflow outlet.
⑦ If the cold water flow rate decreases, or else the ability of the cold water to
absorb heat is surpassed causing a generation of flash steam; even if flash steam accumulates inside the SR-B 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 flash 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
SR-B1.5/SR-B4
Appearance
Internal Construction
The figure above shows the SR-B1.5. The internal configuration of the SR-B4 differs slightly from SR­B1.5.

Specifications

Refer to the product nameplate or submitted drawings for detailed specifications. Do not install valves or orifices at the exhaust outlet, since the SR-B is an atmospheric type heat exchanger.

Configuration

* Depending on the specifications, the product may or may not feature an overflow outlet for
the exhaust pipe.
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