跳至主要内容

How to design a suitable and safe air conditioning system for tunnel shield machine industry

 The 21st century is a century of rapid technological development. The global population has exceeded 6 billion, and the shortage of land resources has increasingly become a common concern of all countries. The utilization of underground space will also be paid more attention. Country's tunnel construction has achieved leap-forward development in recent years.


As of 2019, there are 56 cities in mainland China with a total line size of 6,902 kilometers. Among the 6,902 kilometers of construction lines, underground lines are 5,632 kilometers, accounting for 81.6%, and ground lines are 416 kilometers, accounting for 6%; elevated lines 853.2 Kilometers, proportion, 12.4%;


The estimated demand for water-cooled screw chiller in this market is USD 5 million per year. At present, we have a model case and hope to achieve excellent performance in this sub-industry. H.Stars Group has invested capital in this industry since the last few years .


water-cooled screw chiller


Below is one of H.Stars Group projects done details for reference.

The tunnel excavation works underground, the working environment temperature is high (35~42 degrees), the air is hot and dusty. The operating surface of the shield machine needs to maintain a temperature of about 30 degrees.


We send cold air, comfort and health protection for the staff.

1. It is integrated and small in size. It adopts a Integrated Water-cooled Screw Chiller. The chilled water pump and its electric control are integrated into an integrated unit in the factory to reduce the equipment placement space and installation work on site.

2. The operation is stable and reliable, and the special compressor for high temperature is adopted.

3. The condenser is designed with large temperature difference and small flow to solve the problem of insufficient cooling water flow for customers.

4. Intelligent management, microcomputer control, cloud service, remote monitoring of mobile phone APP.

5. Easy installation and maintenance. The unit has been filled with refrigerant and lubricating oil before leaving the factory. Customers only need to connect the inlet and outlet pipes and power supply to run.

6. The industrial chiller matchs the high-efficiency condenser, evaporator and brand expansion valve produced by our factory.

7. Air handler with detachable filter for easy cleaning.


industrial chillerIntegrated Water-cooled Screw ChillerHstars water-cooled screw chillerwater-cooled screw chiller product


For more project details, welcome to contact H.Stars engineer team at sales@hstars.com.cn or visit our site at www.hstarschiller.com


评论

此博客中的热门博文

Where are water-cooled chillers used? What is a chiller used for?

  Water-cooled chiller   is a cooling water device that can provide constant temperature, constant current and constant pressure. A chiller is a machine that achieves refrigeration through vapor compression or absorption cycles. These liquids can flow through heat exchangers to cool the air or equipment. The industrial chiller can always output ice water with a lower temperature than the ambient temperature. It can be used wherever cooling is required, either direct cooling or indirect heat exchange. The main components of a water-cooled chiller are compressor, condenser, evaporator, water pump, and water tank. Chillers have a wide range of applications. The chiller can be used to cool the injection mold, improve the quality of plastic products, cool the vacuum coating, control the temperature of the vacuum coating machine, cool the food industry, fast cooling processing, chemical industry, effectively control the temperature of chemicals, cooling buildings, concrete fast Cool...

Ways and solutions of noise produced by chillers - www.oumalchiller.com

  It is inevitable that the chiller will produce sound when it is working. For example, when the fan rotates, the fan blades rub against the air, it will produce sound. Normal sound is allowed. However, even the sophisticated refrigeration equipment will appear after a long period of use. Fault. Then, the editor of   Oumal Chiller   will take you to understand the causes and solutions of the noise produced by the chiller. First, find the reason from the parts that are easy to check and observe: 1. Are the anchor screws loose? The chiller is fixed on the ground. After running for a long time, the anchor bolts will be loose, and the chiller will be unstable, which will cause noise. This situation can be solved by replacing the anchor bolts, and vibration reduction can also be installed if conditions permit. The purpose is to make the chiller firmly fixed on the ground. 2. Whether the connecting pipeline is firm There are large and small pipes on the chiller, connecting the ...

How is the Refrigeration Industry Leading the Green Development with R404A

  As global environmental concerns continue to rise, the refrigeration industry is undergoing a significant transformation. Water-cooled low-temperature units exported overseas are now increasingly adopting the eco-friendly refrigerant R404A, leading the way in the industry's green development. Here's a deeper look into this trend. Why Is R404A Becoming the Preferred Refrigerant for  Water-Cooled Low-Temperature Units ? R404A is a blend of refrigerants that stands out due to its environmentally friendly properties. It is free from Ozone Depleting Potential (ODP) and has a relatively low Global Warming Potential (GWP), making it an ideal substitute for traditional refrigerants. This balance between high-performance cooling and environmental friendliness has made R404A especially popular in regions with strict environmental regulations, such as Europe and North America. Water-cooled low-temperature units exported to these areas are now commonly equipped with R404A to meet local ...