China Standard Ammonia Compressor Rotary CHINAMFG Ammonia Refrigeration CHINAMFG air compressor CHINAMFG freight

Product Description

Screw Compressor Unit (Dual-stage)

 

Screw Compressor Features

High Reliability

· Sliding bearing, long operating life

· Less wearing parts, smooth operation, suitable for long-term operation

 

High efficiency

· Low exhaust temperature, high volumetric efficiency

· World’s leading CHINAMFG rotor profile, high efficiency

· Energy stepless adjustment

 

Intellectualized

· Manual control and microcomputer automatic control

 ·The special microcomputer controller developed by UK Guardian company have features of fast running speed, strong control capability. And realize modulation and networking

 
Bingshan 
JZLG Series CHINAMFG Unit Technology Parameter Table

Unit Model JZLG

12.5

12.5F

16

16F

20

20F

25

25F

31.5

31.5F

Refrigerant

R717

R22

R717

R22

R717

R22

R717

R22

R717

R22

Unit

Refrigeration

Capacity

Air Conditioning Condition

KW

307.1

278.

650.5

591.2

1385.2

1258.9

2760.4

2508.4

5431.6

4935.8

Standard Condition

148.1

147.9

315.7

314.3

672.3

669.3

1339.9

1333.7

2636.5

2624.4

Low Temperature Condition

53.4

56.9

113.5

121.0

242.3

258.2

483.3

515.2

951.3

1014.0

Low Temperature Condition With Economizer

63.8

75.3

135.7

159.7

289.4

340.2

577.3

677.0

1136.5

1339.4

Shaft Power

Air Conditioning Condition

KW

55.3

52.7

116.5

111.0

245.2

233.5

487.7

464.4

959.1

913.2

Standard Condition

39.5

41.1

83.2

86.6

175.1

182.2

348.3

362.3

584.9

712.5

Low Temp. Condition

34.8

36.9

73.1

77.6

153.5

163.1

305.6

324.6

601.0

638.4

Low Temperature Condition With Economizer

35.5

39.5

74.6

83.0

156.5

174.1

308.8

343.3

606.1

675.2

Suction Pipe Diameter

mm

100

100

150

200

300

Exhaust Pipe Diameter

mm

65

80

100

150

200

Outline (LxWxH)

mm

2770x1200x1850

2965x1355x1920

3610x1520x2280

4855x1975x3070

5930x2300x3350

Weight

(About)

Air Conditioning Condition

Kg

2240

2860

5850

11000

17200

Standard Condition

2920

5690

10900

16600

Low Temperature Condition

5620

Compressor

Theory Gas Transmission Rate

M3/h

276

580

1215

2395

4700

Energy Adjustment Scope

%

10~100 Stepless Adjustment

Note: 

· Condition: Evap. Temp.:-40ºC~ +5ºC, Cond. Temp. ≤+43ºC,Exhaust temp.≤+105ºC.

  Oil injection temp.: +25ºC~ +65ºC, Oil pressure higher than discharge pressure: -0.15~0.3MPa.

· Air Conditioning condition: +5ºC/+40ºC, Standard conditions: -15ºC/+30ºC, Low temperature condition: -35ºC/+35ºC
 

Bingshan Group was founded in 1930(Investment by CHINAMFG & Chinese Goverment), there are 43 enterprises, which include 1 public company, 9 subsidiary enterprises (domestically funded enterprises), and 32 Sino-foreign joint ventures. CHINAMFG Group has total assets of 9.5 billion RMB and 12000 contracted employees.  It’s China’s largest manufacturing base of refrigeration and air-conditioning equipment, agricultural deep processing equipment base, and 1 of the main bases of China’s petrochemical general machinery equipment.

 

HangZhou CHINAMFG Engineering & Trading Co., Ltd. (Hereafter referred to as BSET) is jointly funded professional trading company by HangZhou CHINAMFG Group Co., Ltd and HangZhou Refrigeration Co., Ltd. in 1988. Concentrating on consulting, design, sales. 

BSET provides quality products to different application fifields including fruit and vegetable, meat and poultry, seafood, beverage etc processing and freezing & refrigerating fifield etc. 

BSET has undertaken hundreds of turnkey projects in Asia, Africa, America etc. more than 60 countries and regions, as well as offer customized energy optimization and sustainable cold chain solutions. 

 

Main Application

Heating Ventilation Central Air Conditioning

Industrial Refrigeration

Food Refrigeration

Trading & Service

OEM & PART

 

Main Products

Screw Compressor Unit Series

Piston Compressor Unit Series

LiBr Absorption Chiller Series

Condenser and Cooling Tower Series

Evaporator Series

Quick Freezer Series

Commercial VRF Series, Air Handling Unit Series, Terminal Equipment Series
 

 

 

FAQ:

Q1.What is our main product ?

A1: Our company is a professional trading company funded by HangZhou Refrigeration Co., Ltd. in 1988. Concentrate on consulting, design, sales, installation, commissioning and maintenance of the refrigeration equipments.

 

Q2.When can I get the price ?

A2:We usually offer the quotation within 2-3 work days for equipment and 5-10 work days for system after receiving your inquiry. For urgent offer, please contact with us for special.  

 

Q3.What is the Trade Term?

A3: We accept Ex-work factory , FOB HangZhou, CNF or CIF, as your requirement. 

 

Q4.How long is our Production leading time?

A4: It depends on type of equipment.

For cold storage equipment, the lead time is 60-80days after receiving down payment or Letter of credit.

For Spiral Freezer, Tunnel Freezer, the lead time is 80-90days after receiving down payment or Letter of credit.

For flake ice making unit and plate freezer, the lead time is 45days after receiving down payment or letter of credit.

 

Q5.What is the Payment term?

A5: By 100% T/T before shipment or By L/C at sight.

 

Q6. During shipping, if there is a damage to products, how do you get replacement?

A6: Firstly, we should investigate the reason cause the damage. At the same time, we will claim for the insurance by ourselves or assist the buyer.

Secondly we will send the replacement to the buyer. The responsible person for above damage will take charge of the cost of the replacement.

 

Q7. What are your terms of packing?

A7: Packing: export worthy package suitable for container transportation.

 

Q8. Do you test all your goods before delivery?

A8: Yes, we have 100% test before delivery.

 

Q9: How do you make our business long-term and good relationship?

A9: HangZhou Refrigeration Co., Ltd was established on 1930. In past 88 years, we have set up our famous brand “Bingshan” not only in domestic market but also overseas market. How to make this brand life so long time?  Good quality and reliable service create good reputation among the customers. Many customers keep adopting our system in past 20days extension of the business. Win-win business is our main task for the long-term cooperation.

 

Q10: Are you a factory or a trading company?

A10: We are the only door to overseas market for HangZhou Refrigeration Co., Ltd. We have our own design team, installation team and after-sales team. We are professional engineering & trading company. We have set up branch office in Philippines, Malaysia, Thailand, Burma, Cambodia, Singapore, Bangladesh, Pakistan, Russian, Uzbekistan, Brazil, Argentina etc.

 

Q11: Where is your factory located?

A11: Our factory is located in HangZhou, ZheJiang  province.  

 

Q12: What is your warranty?

A12: Warranty: 12months after commercial running or 18months from the date of shipment, subject to the earlier expiry.

 

Q13: Can you arrange 30 party pre-shipment inspection

A13: Pre-shipment inspection: Supplier’s pre-shipment inspection is Final; pre-shipment inspection by third Party on buyers cost.

 

Q14:Can we do our OEM logo?
A14:Yes, for the products with drawing supplied by you, we of course apply your logo

 

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Lubrication Style: Lubricated
Cooling System: Water Cooling
Power Source: AC Power
Customization:
Available

|

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.







about shipping cost and estimated delivery time.
Payment Method:







 

Initial Payment



Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

What Is the Lifespan of a Typical Screw Compressor?

The lifespan of a typical screw compressor can vary depending on several factors, including the quality of the equipment, maintenance practices, operating conditions, and usage patterns. Here’s a detailed explanation:

The lifespan of a screw compressor is typically measured in operating hours, which refers to the cumulative hours the compressor has been in operation. While it’s challenging to provide an exact lifespan, as it can vary significantly, screw compressors are generally designed to have a long service life, often ranging from 20,000 to 100,000 operating hours.

Several factors can influence the lifespan of a screw compressor:

  • 1. Quality of Construction: The quality of construction and materials used in the compressor’s manufacturing plays a crucial role in its lifespan. Compressors built with high-quality components and robust construction tend to have a longer service life compared to those with lower-quality materials.
  • 2. Maintenance Practices: Regular and proper maintenance is essential to extend the lifespan of a screw compressor. Following the manufacturer’s recommended maintenance schedule, including tasks such as oil changes, filter replacements, and inspection of critical components, helps ensure optimal performance and reliability. Neglecting maintenance can lead to premature wear and potential breakdowns.
  • 3. Operating Conditions: The operating conditions in which the compressor operates can impact its lifespan. Factors such as temperature, humidity, and the presence of contaminants in the ambient air can affect the compressor’s performance and longevity. Compressors operated in clean, well-ventilated environments with controlled temperature and humidity conditions tend to have longer lifespans.
  • 4. Load and Usage Patterns: The load and usage patterns of the compressor also influence its lifespan. Compressors operated at or near their maximum capacity for prolonged periods may experience higher wear and tear compared to those operated within their recommended operating range. Compressors subjected to frequent start-stop cycles or continuous operation may have different lifespans based on the stress placed on their components.
  • 5. Maintenance and Repairs: The response to maintenance and repair needs can impact the compressor’s lifespan. Timely addressing of maintenance issues and prompt repairs when faults or malfunctions occur can prevent further damage and help prolong the compressor’s lifespan.
  • 6. Manufacturer and Design: The reputation and expertise of the manufacturer play a role in determining the compressor’s lifespan. Established manufacturers with a track record of producing reliable and durable equipment often design their compressors to have longer lifespans. It’s advisable to choose compressors from reputable manufacturers known for their quality and reliability.

It’s important to note that while a screw compressor may have a designed lifespan, it doesn’t necessarily mean it will fail immediately after reaching that threshold. With proper maintenance and care, compressors can often exceed their expected lifespan. On the other hand, neglecting maintenance or subjecting the compressor to harsh operating conditions can shorten its lifespan.

Regular monitoring of the compressor’s performance, including parameters such as discharge temperature, vibration levels, and energy consumption, can help identify any potential issues and take corrective actions to maintain the compressor’s reliability and extend its lifespan.

In summary, the lifespan of a typical screw compressor can range from 20,000 to 100,000 operating hours, depending on factors such as the quality of construction, maintenance practices, operating conditions, usage patterns, and manufacturer reputation. Adhering to proper maintenance practices, operating the compressor within its recommended parameters, and choosing a reputable manufacturer can help ensure a longer lifespan for the screw compressor.

air compressor

How Do You Troubleshoot Common Issues with Screw Compressors?

Troubleshooting common issues with screw compressors involves a systematic approach to identify and resolve problems that may arise during operation. Here’s a detailed explanation:

1. Gather Information:

  • Start by gathering information about the symptoms and any recent changes or events related to the compressor. This can help pinpoint potential causes and guide the troubleshooting process.

2. Check Power and Controls:

  • Ensure that the compressor has a power supply and that all electrical connections are secure. Check for any tripped breakers or blown fuses. Verify that the compressor’s controls, such as pressure switches, temperature sensors, and safety devices, are functioning correctly.

3. Inspect for Leaks:

  • Check for any visible leaks in the compressed air system, including connections, fittings, hoses, and seals. Leaks can cause a drop in system pressure and affect the compressor’s performance. Repair or replace any damaged components.

4. Monitor Pressure and Temperature:

  • Monitor the discharge pressure and temperature of the compressor. Abnormal readings can indicate issues such as inadequate lubrication, high discharge temperatures, or problems with the cooling system. Refer to the manufacturer’s specifications for acceptable pressure and temperature ranges.

5. Verify Lubrication:

  • Ensure that the compressor’s lubrication system is functioning correctly. Check oil levels and the condition of the lubricant. Inadequate lubrication can lead to increased friction, overheating, and damage to internal components. Follow the manufacturer’s recommendations for lubricant type and change intervals.

6. Check Air Filters and Cooling System:

  • Inspect and clean or replace the air filters to ensure proper airflow. Clogged filters can reduce efficiency and increase the compressor’s operating temperature. Additionally, check the cooling system, including fans and heat exchangers, to ensure they are clean and functioning correctly.

7. Examine Vibration and Noise:

  • Pay attention to any unusual vibration or noise coming from the compressor. Excessive vibration may indicate misalignment, worn bearings, or loose components. Unusual noise can be a sign of mechanical issues or problems with the intake or discharge system.

8. Review Maintenance Records:

  • Review the compressor’s maintenance records to ensure that regular maintenance tasks, such as oil changes, filter replacements, and inspections, have been performed according to the manufacturer’s recommendations. Address any overdue or missed maintenance tasks.

9. Consult Manufacturer Documentation:

  • Refer to the compressor’s operating manual and troubleshooting guide provided by the manufacturer. These documents often contain specific troubleshooting steps for common issues and can provide valuable insights.

10. Seek Professional Assistance:

  • If the troubleshooting steps do not resolve the issue or if you are unsure about performing further diagnostics, it is recommended to seek assistance from a qualified technician or contact the compressor manufacturer’s technical support.

Remember to prioritize safety throughout the troubleshooting process, following appropriate lockout/tagout procedures and wearing the necessary personal protective equipment.

In summary, troubleshooting common issues with screw compressors involves checking power and controls, inspecting for leaks, monitoring pressure and temperature, verifying lubrication, checking air filters and cooling systems, examining vibration and noise, reviewing maintenance records, consulting manufacturer documentation, and seeking professional assistance when needed. By following a systematic approach, it is possible to identify and resolve common problems with screw compressors, ensuring their proper operation and performance.

air compressor

What Is the Efficiency of Screw Compressors?

The efficiency of screw compressors can vary depending on various factors, including the design, operating conditions, and maintenance. Here’s a detailed explanation of the efficiency of screw compressors:

1. Isothermal Efficiency:

Isothermal efficiency refers to the ideal efficiency of a compressor operating under isothermal conditions. In reality, screw compressors experience temperature rise during compression, and therefore, they do not achieve isothermal efficiency. The compression process in screw compressors is considered to be relatively close to isothermal compared to other compressor types, such as reciprocating compressors. This is due to the continuous and smooth flow of air or gas through the compression chamber, which helps in minimizing temperature differences.

2. Adiabatic Efficiency:

Adiabatic efficiency refers to the actual efficiency of a compressor, taking into account the heat generated during compression. Screw compressors typically have higher adiabatic efficiency compared to reciprocating compressors. The helical design of the rotors and the presence of intermeshing lobes allow for efficient compression with minimal energy loss. The adiabatic efficiency of a screw compressor can be influenced by factors such as the compression ratio, rotational speed, and discharge pressure.

3. Overall Efficiency:

The overall efficiency of a screw compressor takes into account various factors, including mechanical losses, power consumption, and auxiliary power requirements. Mechanical losses can occur due to friction between the rotors, bearings, and other moving parts. Well-maintained screw compressors with properly lubricated components and well-aligned rotors can minimize mechanical losses and improve overall efficiency. Power consumption is another factor affecting efficiency, and it can vary depending on the size, design, and operating conditions of the compressor.

4. Energy Efficiency:

Energy efficiency is an important aspect of screw compressors. It relates to the ability of the compressor to convert electrical energy into compressed air with minimal energy waste. Energy-efficient screw compressors are designed to optimize the compression process, reduce power consumption, and maximize output for a given input. Variable Speed Drive (VSD) screw compressors, for example, can adjust the rotational speed to match the compressed air demand, resulting in improved energy efficiency and significant energy savings.

It’s important to note that the efficiency of screw compressors can vary depending on the specific model, design features, and operating conditions. Regular maintenance, including proper lubrication, cleaning, and component inspection, is crucial for maintaining high efficiency levels. Additionally, selecting the right size and type of screw compressor for the intended application is essential to achieve optimal efficiency and performance.

In summary, screw compressors are known for their relatively high efficiency compared to other compressor types. While they may not achieve perfect isothermal efficiency, their adiabatic efficiency, overall efficiency, and energy efficiency make them suitable for a wide range of industrial applications.

China Standard Ammonia Compressor Rotary CHINAMFG Ammonia Refrigeration CHINAMFG   air compressor CHINAMFG freightChina Standard Ammonia Compressor Rotary CHINAMFG Ammonia Refrigeration CHINAMFG   air compressor CHINAMFG freight
editor by CX 2024-02-11

Leave a Reply

Your email address will not be published. Required fields are marked *