MD Series High Pressure Multistage Pump
The MD Series High Pressure Multistage Pump is a type of segmented multistage centrifugal pump featuring two or more impellers mounted on the shaft. The discharge port of the first stage communicates with the inlet of the second stage, while the discharge port of the second stage connects to the inlet of the third stage. This series-connected configuration forms the multistage centrifugal pump.
Suitable for conveying underground water from mining operations or municipal sewage containing solid particles with a concentration ≤1.5%, particle diameter ≤0.5mm, and a temperature below 80°C.
Pompa Changyu supports your customized production.
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Rentang Aliran : |
3.75-850m³h |
|
Kepala Rentang: |
19-816m |
|
voltage : |
380v/600v/1140v |
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Suhu : |
0-80℃ |
|
Kustom |
OEM, ODM, OBM |
Pendahuluan
The MD Series High Pressure Multistage Pump is a horizontal, single-suction, multistage segmented drum-ring structure pompa sentrifugal. It utilizes the most advanced and reliable hydraulic model currently available and is commonly employed in tunnel engineering, mining, and tunneling projects.
For axial force balancing, Changyu Pumps utilizes an advanced four-stage balancing system featuring a proven annular drum structure, which has been validated through over a decade of practical application. Combined with precise axial clearance positioning technology, this system achieves complete axial force equilibrium, ensuring stable and reliable operation.
The MD Series High Pressure Multistage Pump also offers advantages such as a wide high-efficiency range, extended efficiency decay cycle, broad performance spectrum, smooth operation, low noise, long service life, and convenient installation and maintenance. It meets the dual demands of high efficiency, energy savings, and stable durability across various industrial applications.
Depending on the conveyed medium, the product can be customized with corresponding materials to ensure safe and reliable operation even under harsh conditions involving corrosion and wear.
Bagian-bagian dari Pompa Multistage Bertekanan Tinggi
The MD industrial pump is a horizontal, single-suction, segmented multistage centrifugal pump. The suction inlet is horizontal, while the discharge outlet is vertical upward. The pump casing sections—including the inlet section, intermediate section, and discharge section—are assembled into a single unit via tension bolts. Bearing assemblies are installed at both ends, and the number of stages is selected based on the pump’s required head.
The rotor assembly primarily consists of the shaft and components mounted on it, including impellers, shaft sleeves, and the balancing system. The number of impellers corresponds to the pump’s stage count. Shaft-mounted parts are secured to the shaft using flat keys and shaft nuts. The entire rotor is supported by one roller bearing at the drive end and two ball bearings at the non-drive end. If a sliding shaft bearing is used, a precision positioning support is additionally required at the non-drive end. The non-drive end sliding bearing requires additional precision positioning support. Bearings do not bear axial forces; a drum-type balancing system counterbalances unbalanced axial forces.
Sealing surfaces between the pump’s inlet section, intermediate section, and outlet section utilize sealant or O-ring seals. Sealing rings and guide vane sleeves are installed between the rotor assembly and the stationary components. Replace sealing rings and guide vane sleeves promptly when their wear affects pump performance. When wear of the sealing rings or guide vane sleeves affects pump performance, they should be replaced promptly. Shaft sealing options include mechanical seals and packing seals. When using packing seals, the packing ring must be correctly positioned, and the packing tightness adjusted appropriately.
All pump sealing components are housed within a sealed chamber pressurized with water to provide water sealing, cooling, or lubrication. A replaceable shaft sleeve is fitted at the shaft seal to protect the pump shaft. This series features rotor assemblies with zero axial play. Typically equipped with rolling bearings and dry oil lubrication. Pumps in this series are directly driven by the prime mover via an elastic coupling. Viewed from the motor end, the pump rotates clockwise.
(Customers with special requirements for pump materials or structure may consult with our company. We can modify the pump inlet/outlet direction per customer needs and implement multi-outlet configurations and functions for this series.)
Molded part material
The MD Series annular segmented multistage centrifugal pumps can be customized with different materials. The primary material configurations are as follows:
| Item | Clean Water | Drinking Water | Waste Water | Hot Water | Sea Water |
|---|---|---|---|---|---|
| Casing | Gray Iron (HT250) | S.S 304 | Ductile Iron (QT500) | Cast Steel | Duplex S.S 2205 |
| Impeller & Ring | Gray Iron (HT250) | S.S 304 | Ductile Iron (QT500) | 2Cr13 | Duplex S.S 2205 |
| Diffuser | Gray Iron (HT250) | S.S 304 | Ductile Iron (QT500) | 2Cr13 | Duplex S.S 2205 |
| Shaft | C.S 45 | S.S 304 | 40Cr | 40Cr | Duplex S.S 2205 |
| Shaft Sleeve | C.S 45 | S.S 304 | S.S 304 | S.S 304 | Duplex S.S 2205 |
Note: The detailed material list will be based on liquid and field conditions.
Customizable materials for flow-through components include: cast iron, ductile iron, wear-resistant alloy steel, wear-resistant alloy cast iron, heat-resistant steel, various grades of stainless steel, titanium alloys, ceramics, and other materials.
Spesifikasi
Deskripsi model
EX:MD600 – 60×6
MD — Wear-resistant drum multi-stage centrifugal pump
600 — The design point of capacity is 600m³/h
60 - Titik desain kepala satu tahap adalah 60m
6 - Tahap pompa adalah 6
EX:150 MD 30×7
150 - diameter saluran masuk pompa adalah 150mm
MD — Wear-resistant drum multi-stage centrifugal pump
30 - Titik desain kepala satu tahap adalah 30m
7-Tahap pompa adalah 7
Di bawah ini adalah dimensi standar untuk model pompa kami untuk referensi Anda. Untuk kondisi operasi tertentu, silakan hubungi tim teknis kami untuk mendapatkan solusi yang lebih tepat dan sesuai.
| Model | Stages | Aliran (m³/jam) | Kepala (m) | Kecepatan (r/menit) | Efisiensi (%) | Shaft Power (kW) | Motor Model | NPSHr (m) | Impeller Dia. (mm) | Pump Weight (kg) | Motor Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 6-25×(2~12) | 2 | 3.75 | 51 | 2950 | 35 | 1.84 | Y100L-2 | 2.0 | Φ139.5 | 77.2 | 33 |
| 2 | 6.3 | 50 | 2950 | 48 | 2.08 | Y100L-2 | 2.0 | Φ139.5 | 77.2 | 33 | |
| 2 | 7.5 | 49 | 2950 | 48 | 2.08 | Y100L-2 | 2.0 | Φ139.5 | 77.2 | 33 | |
| 6-50×(2~14) | 2~14 | 3.75 | 51 | 2950 | 35 | 1.84 | Y100L-2 | 2.0 | Φ139.5 | 111.5 | 117 |
| 2~14 | 6.3 | 50 | 2950 | 48 | 2.08 | Y100L-2 | 2.0 | Φ139.5 | 111.5 | 117 | |
| 2~14 | 7.5 | 49 | 2950 | 48 | 2.08 | Y100L-2 | 2.0 | Φ139.5 | 111.5 | 117 | |
| 48-50×(2~12) | 2 | 35 | 110 | 2980 | 56 | 18.72 | Y200L1-2 | 2.5 | Φ210 | 240 | 267 |
| 2 | 48 | 100 | 2980 | 67 | 19.50 | Y200L1-2 | 2.8 | Φ210 | 240 | 267 | |
| 2 | 60 | 84 | 2980 | 68 | 20.18 | Y200L1-2 | 3.2 | Φ210 | 240 | 267 | |
| 60-50×(2~12) | 2 | 40 | 109 | 2950 | 56 | 21.22 | Y200L1-2 | 3.8 | Φ210 | 310 | 332 |
| 2 | 60 | 100 | 2950 | 67 | 24.40 | Y200L1-2 | 4.0 | Φ210 | 310 | 332 | |
| 2 | 75 | 90 | 2950 | 68 | 27.05 | Y200L1-2 | 4.2 | Φ210 | 310 | 332 | |
| 85-45×(2~9) | 2~9 | 55 | 20 | 2950 | 72 | 48.53 | Y315S-2 | 3.2 | Φ200 | 253.3 | 500 |
| 2~9 | 85 | 15 | 2950 | 70 | 60.75 | Y315M-2 | 3.2 | Φ200 | 253.3 | 500 | |
| 100-30×(2~10) | 2~10 | 70 | 19.4 | 2950 | 70 | 65.34 | Y315S-2 | 4.1 | Φ200 | 745 | 875 |
| 2~10 | 100 | 27.7 | 2950 | 75 | 76.30 | Y355M1-2 | 3.2 | Φ213 | 832 | 1550 | |
| 150-50×(2~10) | 2~10 | 100 | 33.3 | 1480 | 68.5 | 103.05 | Y315L2-4 | 2.6 | Φ213 | 1250 | 378 |
| 2~10 | 150 | 55.6 | 1480 | 74.4 | 146.41 | Y315L2-4 | 3.1 | Φ213 | 1250 | 378 | |
| 2~10 | 200 | 66.7 | 1480 | 72.6 | 162.05 | Y315L2-4 | 3.9 | Φ213 | 1250 | 378 | |
| 200-50×(2~10) | 2~10 | 120 | 33.3 | 1480 | 68.5 | 206.10 | Y4002-4 | 2.6 | Φ213 | 2210 | 378 |
| 2~10 | 200 | 55.6 | 1480 | 74.4 | 292.83 | Y4002-4 | 3.1 | Φ213 | 2210 | 378 | |
| 2~10 | 240 | 66.7 | 1480 | 72.6 | 324.10 | Y4002-4 | 3.9 | Φ213 | 2210 | 378 | |
| 250-50×(2~10) | 2~10 | 160 | 44.4 | 1480 | 65 | 372.95 | Y4005-4 | 2.8 | Φ213 | 2880 | 398 |
| 2~10 | 250 | 69.4 | 1480 | 77 | 442.37 | Y4005-4 | 3.6 | Φ213 | 2880 | 398 | |
| 2~10 | 300 | 83.3 | 1480 | 75.5 | 493.75 | Y4005-4 | 4.4 | Φ213 | 2880 | 398 | |
| 360-60×(2~12) | 2~12 | 300 | 83.3 | 1480 | 74 | 565.62 | Y4503-4 | 3.1 | Φ213 | 2098 | 500 |
| 2~12 | 360 | 100 | 1480 | 75 | 627.84 | Y4503-4 | 4.0 | Φ213 | 2098 | 500 | |
| 2~12 | 410 | 113.9 | 1480 | 74.5 | 659.85 | Y4503-4 | 5.3 | Φ213 | 2098 | 500 | |
| 360-95×(2~10) | 2~10 | 280 | 77.8 | 1480 | 70 | 813.14 | Y5002-4 | 2.6 | Φ213 | 1875 | 500 |
| 2~10 | 360 | 100 | 1480 | 73 | 946.06 | Y5002-4 | 2.8 | Φ213 | 1875 | 500 | |
| 2~10 | 410 | 113.9 | 1480 | 71 | 1052.42 | Y5002-4 | 3.8 | Φ213 | 1875 | 500 | |
| 500-85×(2~10) | 2~10 | 375 | 104.2 | 1480 | 75 | 1321.63 | Y5602-4 | 3.5 | Φ213 | 3550 | 530 |
| 2~10 | 500 | 139.0 | 1480 | 76 | 1523.85 | Y5602-4 | 5.0 | Φ213 | 3550 | 530 | |
| 2~10 | 550 | 152.8 | 1480 | 72 | 1561.20 | Y5602-4 | 5.8 | Φ213 | 3550 | 530 |
Performance Curve Reference
Installation of High-Pressure Multistage Pump
Apabila memasang produk ini dengan menggunakan sistem penyeimbangan otomatis tiga elemen, selain memenuhi persyaratan umum, hal-hal berikut ini harus diperhatikan:
- 1) Ratakan permukaan fondasi peralatan dengan menggunakan waterpas. Setelah semen pondasi mengeras, periksa apakah lubang baut alas dan jangkar longgar.
- 2) Setelah merakit unit penggerak, peralatan, dan alas, periksa dengan ketat konsentrisitas antara spindel unit dan spindel unit penggerak untuk memastikan kedua garis sumbu bertepatan; konsentrisitas antara poros utama unit dan poros utama unit penggerak untuk memastikan kedua pusat poros sejajar.
- 3) Selama perakitan unit penggerak dan peralatan, pastikan nilai jarak bebas aksial antara permukaan kopling peralatan dan unit penggerak.
- 4) Pipa hisap dan pipa pembuangan peralatan harus memiliki penyangga yang terpisah. Peralatan hanya dapat menahan gaya internalnya sendiri dan tidak boleh menahan gaya eksternal apa pun untuk mencegah kerusakan.
Perakitan Peralatan
Perakitan peralatan umumnya mengikuti urutan pembongkaran yang terbalik. Kualitas perakitan secara langsung berdampak pada kemampuan operasional, masa pakai, dan parameter kinerja peralatan. Perhatikan hal-hal berikut ini selama perakitan:
- 1) Pertahankan akurasi pemesinan dan kekasaran permukaan komponen. Hindari benturan, goresan, atau kerusakan lainnya. Pastikan sealant yang digunakan untuk menyegel bersih. Gunakan tenaga yang seragam saat mengencangkan sekrup dan baut;
- 2) Penyelarasan antara jalur aliran keluar dari impeler aliran tiga dimensi dan jalur aliran masuk baling-baling pemandu dipastikan oleh dimensi aksial masing-masing komponen. Kualitas penyelarasan jalur aliran secara langsung memengaruhi kinerja peralatan; oleh karena itu, dimensi peralatan tidak boleh disesuaikan secara sembarangan;
- 3) Setelah perakitan, putar rotor pompa secara manual untuk memverifikasi rotasi yang mulus di dalam rumah pompa dan memastikan posisi aksial memenuhi persyaratan yang ditentukan.
Untuk masalah instalasi teknis lebih lanjut, silakan hubungi tim kami.
Email: jade@changyupump.com
Telepon: +86-13651913727
Kemungkinan kesalahan dan solusinya
| Gejala Kesalahan | Analisis Penyebab | Solusi |
|---|---|---|
| Kegagalan untuk melakukan pemutaran, jarum pengukur tekanan dan pengukur vakum berosilasi dengan keras | Air pelumas yang tidak mencukupi; kebocoran udara pada sambungan pipa atau pengukur. | Isi ulang dengan air pelumas yang cukup; buang udara sepenuhnya; periksa sambungan pengukur dan segel; kencangkan atau perbaiki titik-titik yang bocor. |
| Pompa gagal prima, pengukur vakum menunjukkan vakum tinggi | Katup kaki tidak terbuka atau tersumbat; hambatan yang berlebihan pada pipa hisap; pengangkatan hisap terlalu tinggi. | Sesuaikan dan bersihkan katup kaki; bersihkan atau ganti pipa hisap; kurangi ketinggian hisap. |
| Pengukur tekanan menunjukkan tekanan, tetapi tidak ada debit air | Hambatan yang berlebihan pada pipa pembuangan; arah putaran yang salah; saluran impeler tersumbat atau rusak; kecepatan pompa tidak memadai. | Periksa atau perpendek pipa pembuangan; bersihkan saluran impeler atau ganti impeler; periksa motor dan tingkatkan kecepatan pompa. |
| Laju aliran di bawah persyaratan desain | Penyumbatan pompa atau pipa; keausan yang berlebihan pada cincin segel; kecepatan yang tidak memadai. | Periksa apakah ada halangan aliran, bersihkan pompa dan pipa; ganti cincin segel; tingkatkan kecepatan pompa. |
| Konsumsi daya yang berlebihan, gangguan air keseimbangan, ruang keseimbangan yang terlalu panas, peningkatan daya motor | Gesekan rotor-stator pada pompa; keausan impeler; keausan pada sistem penyeimbangan otomatis; aliran pompa yang berlebihan. | Periksa pembengkokan poros; periksa area gesekan dan ganti impeler; perbaiki atau ganti komponen penyeimbang otomatis; kurangi laju aliran. |
| Suara bising yang tidak normal di dalam pompa, tidak ada debit air | Hambatan pipa hisap yang berlebihan; katup dibuka terlalu lebar; masuknya udara pada sisi hisap yang menyebabkan kavitasi; suhu cairan terlalu tinggi; rotor yang tidak seimbang, poros bengkok, atau ketidaksejajaran antara pompa dan poros motor; fondasi yang lemah. | Periksa pipa hisap dan katup kaki; tutup sebagian katup untuk mengurangi aliran; turunkan ketinggian pemasangan; sederhanakan perpipaan saluran masuk untuk mengurangi kehilangan; tutup kebocoran udara; turunkan suhu cairan; kencangkan komponen yang longgar; seimbangkan impeler dengan pemesinan; sejajarkan pompa dan motor; perkuat fondasi. |
| Getaran sistem, bantalan terlalu panas | Ketidaksejajaran antara motor dan pompa; pelumasan yang tidak memadai atau keausan bearing; adanya kavitasi. | Menyelaraskan poros motor dan pompa; melumasi atau mengganti bantalan; mengurangi laju aliran. |
Catatan: Tabel analisis kesalahan ini berlaku khusus untuk sistem Pompa Multistage Tekanan Tinggi. Selalu lihat manual pengoperasian dan pemeliharaan resmi sebelum melakukan pemeliharaan atau penyesuaian apa pun.
Advantages of High Pressure Multistage Pump
Technical Features
Structure optimized for high-head, multi-stage applications with stable axial force control and high long-term operational reliability.
High Efficiency & Energy Savings
Precision-cast flow-through components ensure consistent flow path dimensions, delivering measured efficiency over 2% higher than conventional multistage pumps.
Advanced Manufacturing Equipment
Critical rotors undergo stage-by-stage inspection and dynamic balancing to G2.5 standards, guaranteeing low-vibration, low-noise operation.
Pemilihan Bahan
Multi-gradient material configuration balances wear resistance, corrosion resistance, and cost, adapting to diverse tunnel and mining conditions.
Balancing System Material Configuration
Balancing components utilize high-chromium alloys and vacuum-hardened materials, delivering significantly extended wear life compared to standard configurations.
Self-Balancing System Principle
Automatic axial force adjustment minimizes rotor movement and wear, maintaining stable efficiency and bearing temperature rise.
Aplikasi
The High-Pressure Multistage Pump features a drum-type balancing structure. This drum-type balancing design employs new material processing techniques to eliminate the common weaknesses of conventional multistage pumps, such as high wear rates and frequent maintenance requirements.
This product is widely used in complex applications including seawater desalination, brine extraction, salt chemical processing, boiler feedwater systems, low-cavitation drainage, crude oil transportation in oilfields, tunnel shield operations involving highly silt-laden media, and underground mine drainage.
Tunneling and Underground Engineering
Suitable for deep mine shaft drainage and mining operations, capable of withstanding long-term high-lift, high-load operating conditions.
Mining and Mine Drainage
Suitable for deep mine shaft drainage and mining operations, capable of withstanding long-term high-lift, high-load operating conditions.
Pasokan dan Drainase Air Kota dan Industri
Used for high-rise water supply, long-distance water conveyance, and industrial system makeup water. Features stable operation and low maintenance costs.
Professional High Pressure Multistage Pump Manufacturer in China
Changyu Pump Industry brings over 22 years of experience in the design and manufacturing of multistage centrifugal pumps, specializing in reliable pumping solutions for demanding industrial applications. With advanced production facilities, an experienced engineering team, and strict quality control systems, we deliver pumps designed for high head, continuous-duty operation, and long service life.
Kami high pressure multistage pumps are engineered for tunnel construction, mining dewatering, industrial water supply, and high-rise building applications, where stable performance, efficient energy use, and precise axial force control are critical. Featuring optimized hydraulic designs, robust materials, and advanced balancing systems, Changyu pumps ensure safe, efficient, and long-term operation under severe working conditions.
Contact us today for a customized quotation or professional technical support—our engineers are ready to help you select the right pump for your project.
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Minta penawaran gratis
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