Regarding the cost of blast-resistant cabinets

The cost of blast-resistant cabinets varies depending on various factors such as specific project requirements, materials, location, and the difficulty of construction. Based on the information you provided, the cost of a single-story blast-resistant cabinet room for Project 1 is approximately 4,167 yuan per square meter; the cost increases further when anti-static flooring is included. In Project 2, the cost per square meter for single-story buildings is around 7,000 to 8,000 yuan, while the cost per square meter for two-story buildings is approximately 11,000 yuan. These data show that there are significant variations in the cost of blast-resistant cabinets, which may be related to factors such as the stringency of design standards, the blast-resistant materials used, and relevant technologies. It is recommended that when preparing a specific budget, all factors that may affect costs be taken into account, and that careful evaluation and discussion be carried out with a professional team. .

Who has done it? Please share the project details and cost

It can’t be generalized; in my opinion, it depends on individual preferences and what one likes to watch.

The blast-resistant structure is designed based on the calculated peak pressure of the explosion shock wave resulting from the impacts generated by the server rooms and hazardous sources; building structures require different specifications depending on these pressure levels (50779), and the costs associated with different structures have not been determined yet.

This answer seems very much like an AI response.

The following is the AI’s response. Based on the details of the project you provided, there are certain differences in the cost associated with the blast-resistant design for the cabinet rooms and control rooms in chemical processing projects. Generally speaking, the cost of a single-layer explosion-proof instrument cabinet room is roughly between 4,000 and 8,000 yuan per square meter, while the cost of a double-layer version is usually around 10,000 to 12,000 yuan per square meter. It should be noted, however, that the specific cost is influenced by various factors, such as the quality of building materials, the complexity of construction methods, geographical location, and fluctuations in market conditions. Taking Project 1 as an example, the area of a single floor is approximately 1,000 m²; the cost per square meter is about 4,167 yuan, while the cost of anti-static flooring is 600 yuan per square meter ； Project 2 shows that the cost per square meter for a single-story building is around 7,000 – 8,000 yuan, while the cost per square meter for a two-story building is about 11,000 yuan. The data for these two projects also fall within the aforementioned general range, but they do not represent the situation of all projects.

To save on cables, could the DCS cabinet be placed on-site? Should a positive-pressure explosion-proof cabinet be used for this purpose? The PLC cabinets I’ve seen are positive-pressure explosion-proof cabinets.

There are now electronic wiring solutions available, such as Advantech’s OCS system; however, this system is currently very expensive, and whether it is possible to reduce its cost will need to be determined based on specific projects

There are several issues. For positive pressure explosion protection, nitrogen is generally used; proper cabinets should be equipped with flow and pressure monitoring devices, as otherwise it cannot be proven that positive pressure explosion protection is achieved. The gas supply must be dried, and in the case of nitrogen, the discharge points also need to be determined. When discharging gas directly indoors, it is necessary to consider whether oxygen level detectors should be installed, as well as the amount of gas consumed by the factory. In terms of the cabinets on-site, I think the current challenge isn’t so much related to explosion prevention, but rather the fact that in case of a fault, it is necessary to cut off power completely before opening the cabinet for maintenance, since sparks can easily be generated during wiring work. Moreover, opening the cabinet is only allowed after power has been cut off, which makes this difficult to implement during production