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Giải pháp Bơm Hàng hải & Nước biển

Marine engineering pump duties may involve continuously aerated seawater, tidal level changes, suspended sand, warm cooling water, concentrated brine and restricted maintenance access. These conditions affect corrosion, cavitation, wear, sealing and service life.

Changyu Pump reviews seawater chemistry, chloride level, temperature, suspended solids, particle size, flow, total head, tide or tank level, NPSHa, installation position, operating hours and material requirements before recommending a pump series.

APPLICABLE FLUID

Marine & Seawater Pumping Applications

A marine or coastal project contains several different pump duties. Screened seawater, cooling circulation, construction water with sand, pits and sumps, concentrated brine and auxiliary transfer cannot be assigned the same pump or material by default.

Changyu Pump separates clean-water hydraulic duties from abrasive and solids-bearing duties, then checks alloy, seal, suction arrangement and maintenance access against the actual project conditions.

Clean Seawater Intake / Cooling & Circulation / Port & Marine Construction / Pits, Tanks & Sumps / Brine & Salt Slurry / Auxiliary Transfer

Clean Seawater Intake, Lifting and Transfer

Ứng dụng:

This duty covers screened seawater without settled sand, shells or large solids. The pump must provide stable flow while resisting chloride attack and maintaining adequate NPSH margin as tide or intake level changes.

CYH is the first Changyu series to evaluate for clean seawater, brackish water and compatible saltwater transfer. The final wet-end alloy and seal faces are selected from chloride level, temperature, oxygen, deposits and required service life.

Bơm được khuyến nghị

Main selection factors

  • Design, normal and minimum flow
  • Total dynamic head and tide range
  • NPSHa and suction geometry
  • Salinity, chloride and temperature
  • Screen condition and suspended solids
  • Wet-end alloy and seal faces

Bơm ly tâm bằng thép không gỉ dòng CYH dành cho xút

Bơm ly tâm dòng CYH dành cho xút là loại bơm hóa chất bằng thép không gỉ được thiết kế chuyên dụng cho các chất lỏng kiềm ăn mòn, mang lại hiệu suất cao, độ bền và khả năng vận hành đáng tin cậy.

Bơm hóa chất ly tâm thép không gỉ series CYH

Máy bơm ly tâm hóa chất bằng thép không gỉ dòng CYH hiệu suất cao. Lưu lượng: 0,8–750 m³/h, nhiệt độ lên đến 280°C. Tuân thủ tiêu chuẩn ISO 2858 và hỗ trợ OEM/ODM. Hãy sở hữu ngay một giải pháp đáng tin cậy!

Cooling Water Circulation

Ứng dụng:

Marine engines, heat exchangers, coastal plants and offshore packages may require continuous cooling-water circulation. Warm seawater, oxygen, biofouling and deposits can reduce hydraulic performance and accelerate corrosion.

CYH is evaluated for screened seawater circulation when the hydraulic duty and material are compatible. CYE can be considered where an above-level pump must lift screened water by self-priming. Very large cooling-water flows require individual hydraulic review.

Bơm được khuyến nghị

Main selection factors

  • Continuous and standby flow
  • System resistance and equipment pressure drop
  • Minimum intake level and NPSHa
  • Seawater temperature and chlorination
  • Biofouling and cleaning method
  • Motor margin and duty cycle

Bơm ly tâm bằng thép không gỉ dòng CYH dành cho xút

Bơm ly tâm dòng CYH dành cho xút là loại bơm hóa chất bằng thép không gỉ được thiết kế chuyên dụng cho các chất lỏng kiềm ăn mòn, mang lại hiệu suất cao, độ bền và khả năng vận hành đáng tin cậy.

Bơm hóa chất ly tâm thép không gỉ series CYH

Máy bơm ly tâm hóa chất bằng thép không gỉ dòng CYH hiệu suất cao. Lưu lượng: 0,8–750 m³/h, nhiệt độ lên đến 280°C. Tuân thủ tiêu chuẩn ISO 2858 và hỗ trợ OEM/ODM. Hãy sở hữu ngay một giải pháp đáng tin cậy!

Port, Dock and Marine Construction Water

Ứng dụng:

Dewatering, caisson work, dredging support and temporary marine construction can introduce sand, silt, rust scale or variable solids. A clean-water seawater pump should not be used by default when abrasive particles are normal.

PGY is evaluated for medium-to-large abrasive sand or silt transfer. PHH is suitable when abrasive service also needs higher head or a longer discharge line. CYE is considered for self-priming transfer from a pit or excavation after solids size and concentration are confirmed.

Bơm được khuyến nghị

Main selection factors

  • Nồng độ chất rắn và kích thước hạt
  • Slurry density and settling tendency
  • Flow, head and pipeline length
  • Suction lift and priming requirement
  • Intermittent or continuous operation
  • Wear-part and flushing plan

Máy bơm bùn ngang dòng PGY | Máy bơm công suất lớn, áp lực cao

Bơm bùn ngang dòng PGY từ Changyupump. Kết cấu hạng nặng, cột áp cao lên đến 100m, vỏ bơm hai lớp, ổ bi bôi trơn bằng dầu. Bộ phận tiếp xúc chất lỏng bằng hợp kim crom cao (BTMCr27/Cr28/Cr33). Lưu lượng 117-976 m³/h, đường kính xả 40-400mm. Bốn phương án bố trí trục bơm. Lý tưởng cho khai thác mỏ, luyện kim, khử lưu huỳnh khí thải (FGD), rửa than và bùn hóa chất. Dữ liệu kỹ thuật và hướng dẫn lựa chọn.

Bơm bùn ly tâm dòng PHH dành cho ngành khai thác mỏ và nhà máy điện

Bơm bùn ly tâm dòng PHH là loại bơm bùn công suất lớn, áp lực cao, được thiết kế dành cho các ứng dụng trong khai thác mỏ, nhà máy điện, nạo vét và vận chuyển bùn mài mòn. Với các bộ phận chịu mài mòn làm từ hợp kim crom cao, hệ thống bảo vệ vỏ kép và lưu lượng lên đến 1008 m³/h, sản phẩm này đảm bảo khả năng bơm bùn đường dài đáng tin cậy, đồng thời giúp giảm chi phí bảo trì và kéo dài tuổi thọ sử dụng.

Pits, Tanks, Bilges and Sumps

Ứng dụng:

Marine pits, ballast-related tanks, deck drains and sumps can contain seawater, rust, sediment, oily contamination or treatment chemicals. The pump arrangement depends on liquid level, access, solids and whether the pump is above or inside the tank.

CYE is evaluated for self-priming suction from below-level pits. FY suits compatible tank-mounted or immersed duties with flooded suction. BFQ or BFD diaphragm pumps can be considered for intermittent dirty liquid, variable flow or entrained air after diaphragm and valve compatibility are checked.

Bơm được khuyến nghị

Main selection factors

  • Liquid composition and oil content
  • Solids size and concentration
  • Minimum and maximum liquid level
  • Suction lift or immersion depth
  • Intermittent or continuous duty
  • Material and diaphragm compatibility

Bơm màng điện series BFD

BFD Series Electric Diaphragm Pump​ The BFD series electric diaphragm pump, also called an electrically operated diaphragm pump, is a…

Concentrated Brine and Salt Slurry

Ứng dụng:

Desalination reject, saltworks and coastal process systems may handle concentrated brine, crystals or settled salt solids. Corrosion and abrasion must be evaluated together, and clean brine should be separated from salt slurry.

UHB is evaluated for lower-temperature corrosive brine with fine abrasive solids. PGY or PHH is considered for denser salt slurry, larger solids, higher flow or higher head. ZJP-Z hose pumps can suit lower-flow concentrated brine slurry, salt crystals or viscous mother liquor when hose compatibility is confirmed. Clean brine without solids requires a separate hydraulic and alloy review.

Bơm được khuyến nghị

Main selection factors

  • Salinity and chloride concentration
  • Crystal size and solids by weight
  • Specific gravity and viscosity
  • Nhiệt độ hoạt động
  • Flow, head and pipe velocity
  • Material, seal and flushing arrangement

Bơm axit photphoric dòng UHB

Máy bơm axit photphoric dòng UHB với lớp lót UHMWPE để xử lý axit photphoric, axit ăn mòn và bùn mài mòn chứa chất rắn. Phù hợp…

Marine Auxiliary Transfer and Cleaning

Ứng dụng:

Auxiliary duties include deck washing, temporary transfer, service water, tank cleaning and emergency drainage. The liquid may be clean seawater, dirty drainage or a chemical cleaning solution, so the pump should be selected from the actual medium rather than the word auxiliary.

CYH is evaluated for compatible screened seawater. CYE suits above-level self-priming transfer. FY is considered for compatible immersed installation, while BFQ or BFD may suit intermittent dirty or air-entrained liquids after material compatibility is confirmed.

Bơm được khuyến nghị

Main selection factors

  • Actual liquid composition
  • Required flow and discharge pressure
  • Self-priming or immersed installation
  • Solids, air and intermittent operation
  • Portable or fixed arrangement
  • Material, seal or diaphragm compatibility

Bơm ly tâm fluoroplastic series CYF

CYF Fluoroplastic Centrifugal Pump is designed for handling highly corrosive chemicals such as acids, alkalis, solvents and wastewater. With FEP,…

Bơm màng điện series BFD

BFD Series Electric Diaphragm Pump​ The BFD series electric diaphragm pump, also called an electrically operated diaphragm pump, is a…

How to Select a Pump for Marine Engineering Service

The word seawater is not enough to select a pump. Marine projects must be checked against the actual water chemistry, solids, hydraulic system, installation and maintenance constraints.

  • Seawater, brackish water, concentrated brine or salt slurry composition
  • Chloride, temperature, oxygen, chlorination and other chemicals
  • Suspended solids, particle size, shells, sand and settling tendency
  • Design, normal and minimum flow plus total dynamic head
  • Tide or tank level, suction lift, NPSHa and priming requirement
  • Continuous or intermittent duty, certification and maintenance access

Ranh giới lựa chọn: High-pressure RO feed, seawater injection, very large vertical intake, fire-fighting and class-critical marine service require separate engineering and certification review.

Quick Selection Table for Marine Engineering Duties

Marine or seawater dutyThách thức chínhFirst pump to evaluateThay thếDo not finalize before checking
Screened seawater intake or transferChlorides, cavitation, continuous dutyCYHProject-specific configuration for very large intakeFlow, head, NPSHa, salinity, temperature, material
Seawater cooling circulationContinuous operation, corrosion, foulingCYHNone without hydraulic reviewFull system curve, heat-exchanger loss, NPSH, operating range
Above-level port or dock transferSuction lift, changing level, suspended sandNăm dương lịchCYH for clean flooded suctionSuction lift, solids, priming time, material
Marine-construction water with abrasive sandErosion and settling solidsPGY hoặc PHHNăm dương lịch for moderate solids and lower headSolids wt%, maximum particle size, SG, pipeline length
Seawater pit or tankImmersion, variable liquid levelNăm tài chínhNăm dương lịch for external self-priming installationImmersion depth, liquid level, solids, alloy
Concentrated brine without crystalsHigh chloride and material attackCYH after material reviewUHB below 90°C where chemistry is compatibleComplete ion analysis, temperature, oxygen, deposits
Brine or salt slurry with fine crystalsCorrosion, abrasion, scalingUHBPGY; ZJP-Z for low flowSalt species, solids, crystal size, pH, cleaning plan
Intermittent auxiliary or cleaning fluidVariable composition, entrained airBFQChuyện vặtComplete chemistry, diaphragm and valve compatibility
High-pressure RO, seawater injection or class-critical ship systemPressure containment, certification, safetyIndividual engineering review onlyProject-specific pumpFull specification, applicable code and certification

Not sure which pump to choose? Send Bơm Changyu the medium composition, salinity, temperature, solids, particle size, flow, total head, NPSHa, tide or tank level, installation and operating hours.

Why Choose Changyu Pump for Marine Engineering

Duty-Based Selection

We separate clean seawater, abrasive construction water, dirty sumps and concentrated salt slurry, then match the hydraulic design and pump construction to each duty.

Material and Seal Review

Wet-end alloy, shaft seal, seal faces and elastomers are checked against chloride, temperature, oxygen, solids, treatment chemicals and required service life.

Hydraulic Verification

Flow, total dynamic head, NPSHa, tide range, suction lift, pipe losses and motor margin are reviewed before a pump model is confirmed.

Clear Engineering Boundaries

We identify when a standard Changyu series is applicable and when marine class, fire service, high pressure or very large intake conditions require project-specific engineering and certification.

Liên hệ với chúng tôi

Các giải pháp bơm linh hoạt, hiệu quả và hoàn toàn tùy chỉnh.

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Câu hỏi thường gặp

CYH is normally the first series to evaluate for screened clean seawater, brackish water and compatible saltwater transfer. The final hydraulic model, wet-end alloy, seal faces and elastomers must still be selected from the actual flow, head, NPSHa, chloride level, temperature and required service life.

For lower-temperature corrosive brine containing fine abrasive solids or salt mud, the UHB Series is one pump to evaluate. Denser salt slurry, larger solids, higher flow or higher head may require a PGY or PHH slurry pump. Final selection depends on complete brine chemistry, chloride concentration, temperature, solids content, particle size, flow, head and material compatibility.

No. 316L stainless steel is not automatically suitable for every seawater duty. Material selection must consider chloride level, temperature, oxygen, chlorination, deposits, crevices, flow conditions and required service life. Depending on the conditions, duplex, super duplex or another compatible wet-end material may be required.

A self-priming pump should be considered when the pump is installed above the liquid level and must lift liquid from a dock, pit, tank or excavation. The CYE Series can be evaluated after the suction lift, minimum liquid level, priming time, solids size and concentration, flow, head and material compatibility are confirmed.

UHB is evaluated for lower-temperature corrosive brine with fine abrasive solids. PGY or PHH is considered for denser salt slurry, larger solids, higher flow or higher head. ZJP-Z hose pumps can suit lower-flow concentrated brine slurry, salt crystals or viscous mother liquor when hose compatibility is confirmed. Clean brine without solids requires a separate hydraulic and alloy review.

High-pressure RO feed, seawater injection, very large vertical intake, fire-fighting and class-critical marine duties are not standard series selections on this page. They require an individual engineering and certification review against the full project specification, applicable code, pressure requirements and marine-class requirements.

Provide the pumped medium and complete composition, salinity or chloride level, temperature, solids concentration, maximum particle size, specific gravity and viscosity; design, normal and minimum flow; total dynamic head; NPSHa, tide or tank levels and suction arrangement; installation position; operating hours and duty cycle; required materials; and any applicable certification or marine-class requirements.

SẢN PHẨM

Recommended Marine Engineering Pumps

These Changyu Pump series cover clean seawater, self-priming transfer, immersed installation, abrasive construction water, dirty sumps and concentrated salt slurry. Final selection depends on water chemistry, solids, flow, head, suction conditions, installation, duty cycle and certification.