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2. Before Using BHE

3. Operating Precautions

Open the package delivered, and confirm the followings:.

Check the name plate label on BHE to check that the delivered product is as ordered.

Check that there is no damage on BHE.

Check that all accessories, if ordered, are included.

Fixing brackets and mounting brackets are option, and normally not included.
Please prepare them by yourself.

If the delivered product is not as ordered, or is damaged, or if accessories are missing, 
please contact Sales Dept.

 

of H

FM ([email protected])

Keep this instruction manual with care after reading it.

When reselling or transferring BHE, or when selling it as incorporated in another equipment, be
sure to attach this instruction manual.

Carefully read also the instruction manuals for devices to be connected to BHE.

Pay attention also to the characteristics and handling instructions of fluids to be used.

Strictly observe all laws and regulations corresponding to any other machinery/equipment
connected to BHE, and fluids that are used in each country where BHE is used.

If there are questions regarding the contents of this manual and BHE, contact Sales Dept.

 of HFM.

Be sure to fix BHE with reference to the fixing method examples shown in Section 6 "Fixing
Methods" (page 9). Brackets for fixing BHE are normally not included. Please prepare them by
yourself.

The copyrights of this manual are owned by 

Hofmann (Beijing) Engineering Technology Co., Ltd.

This manual is written in English and the customer must accept full responsibility for their
thorough understanding of the contents of this manual.

Work with a suitable piping connection and method for the model of BHE.

Read Section 7 "Piping" (page 9) for details.

BHE performs heat transfer by two fluids with a difference of temperature through individual
channels separated through plate.

It can be highly efficient heat transfer from hot fluid to cold fluid. BHE is used as heater, cooler,
evaporator, and condenser.
Do not use BHE for other purposes.

7

Содержание HQ Series

Страница 1: ...ely Be sure to read Safety Precautions pages 3 to 5 before using the heat exchanger Fill in the BHE model manufacturing number and the date of delivery in the product warranty page 11 Keep this instruction manual and the product warranty with care Brazed Plate Heat Exchanger Instruction Manual for HQ Series Hofmann Beijing Engineering Technology Co Ltd ...

Страница 2: ...ents Safety Precautions 1 Structure of Brazed Plate Heat Exchanger 2 Unpacking and Before Installing 3 Operating Precautions 4 Storage Installation Environment 5 Installation 6 Fixing Methods 7 Piping 8 Operation 9 Maintenance 10 Warranty 3 6 7 7 8 8 9 9 9 10 11 ...

Страница 3: ...high temperature high pressure or dangerous fluid caustic soda ammonia or the like Call for attention to the risk that outpouring of internal fluid may lead to an accident causing death or serious injury To avoid outpouring of internal fluid observe the following precautions when loosening the connections of equipments or piping Confirm that operation must be stopped Confirm that BHE internal pres...

Страница 4: ... starting operation flow the hot fluid first and then the cold fluid When stopping operation stop the cold fluid first and then the hot fluid Do not use the cleaning chemicals frequently Use it only in case of decreasing the performance Frequent use may cause corrosion of BHE In case of using BHE as a heater watch control the operating condition to avoid the scorching on the plates by When startin...

Страница 5: ...micals Depending on the chemicals used copper may be eluted resulting in a significant reduction in durability When cleaning the inside of BHE keep the temperature difference as small as possible during the cleaning process Repetition of rapid temperature change during cleaning may damage BHE If performing the leak test pressurizing for a one side and the other side should be in atmospheric condit...

Страница 6: ... copper or nickel materials Indication of BHE model and specifications Serial number of BHE Some models indicate this on E frame or plate Brazed copper and nickel have the following characteristics Copper Brazed Copper is an efficient bonding method for many industries like automotive and refrigeration Copper brazed heat exchanger is used for evaporator condenser of refrigerant in the compression ...

Страница 7: ...ictly observe all laws and regulations corresponding to any other machinery equipment connected to BHE and fluids that are used in each country where BHE is used If there are questions regarding the contents of this manual and BHE contact Sales Dept of HFM Be sure to fix BHE with reference to the fixing method examples shown in Section 6 Fixing Methods page 9 Brackets for fixing BHE are normally n...

Страница 8: ...bient temperature 35 C to 80 C Ambient humidity Relative humidity 30 to 95 RH no condensation Use BHE in the installation orientation indicated by in the table below If used in the orientation indicated by BHE may suffer from problems such as fluid accumulation and drifting resulting in damage or failure in obtaining sufficient performance Flow direction of product Setting Vertical Horizontal Lyin...

Страница 9: ...uid flow direction and connection ports refer to the assembly drawing If you need to change the fluid connection ports shown in the assembly drawing contact Hisaka Works in advance and check about the change For the method and sequence of starting and stopping the operation follow the precautions described in Safety Precautions pages 3 to 5 There is a possibility that the fluid might freeze after ...

Страница 10: ...etely replace the fluid with fresh water Circulate aqueous solution containing 5 citric acid or 5 oxalic acid at 30 C to 60 C for 30 to 60 minutes Adjust cleaning time so as to obtain an appropriate cleaning effect Perform flushing for 20 to 40 minutes to completely replace detergent with fresh water Perform flushing for 20 to 40 minutes to completely replace detergent with fresh water Circulate a...

Страница 11: ...ed by your improper handling or supervision during construction work after delivery of BHE External damage of BHE deformation or damage of nozzles by piping load or connection work etc Failure caused by not observing the various items described in Safety Precautions pages 3 to 5 Failure caused by using the product under conditions different from the design specifications Failure caused by natural ...

Страница 12: ...Hofmann Beijing Engineering Technology Co Ltd ISO9001 2015 ...

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