HZB series booster pump
key word：Heat exchange element
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Product description
HZB series booster pump
1. Introduction
1.1. Application
HZB303-720, HZB253-640 and HZB200-430 are the main booster pumps of HZB303 series. Among them, HZB303-720 type booster pump is matched with steam driven feed water pump set with 50% capacity of 1000MW unit; HZB253-640 type booster pump is matched with electric feed water system unit with 30% capacity of 1000MW unit and electric and steam feed pump set with 50% capacity of 600MW unit, HZB200-430 The capacity of the 300 MW unit is 30% of the capacity of the feed water pump unit.
1.2. Model meaning
HZB**-##
HZB -- HZB series prefix system code
**---------Impeller outer diameter nominal size (mm)
##-------------Impeller suction diameter (mm)
Example: HZB253-640 booster pump means that the series code of the booster pump is HZB, the nominal outer diameter of impeller is 253mm, and the diameter of impeller suction inlet is 640mm.
1.3. Structural features (see Figure 7-1)
1.3.1. Single stage double suction impeller is adopted.
1.3.2. The inlet and outlet are vertical upward.
1.3.3. It is integrally installed on the rigid structure pump seat made of section steel welding.
1.3.4. Radial separation volute is adopted, and end covers are set on both sides of pump casing.
1.3.5. HZB253-640 and HZB200-430 booster pumps are single Volute Pumps.
1.3.6. HZB303-720 booster pump is a double volute pump.
1.3.7. Balanced mechanical seal is adopted.
1.3.8. The combination of rolling bearing and sliding bearing is adopted. No oil belt is required.
2. Main technical parameters and product appearance
2.1. Main technical parameters and performance specifications
The main technical parameters and performance curves of HZB303-720 (supporting 1000W unit), HZB253-640 booster pump and HZB200-430 booster pump are shown in Fig. 7-2 ~ Fig. 7-4
2.2. Product appearance (see Figure 7-5)
3. Selection method
The user provides the specific configuration requirements and technical parameters of the unit
4. Scope of supply
Booster pump body: including body pipe, base and anchor bolt, etc.
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