What should be paid attention to when buying elevators

1 Determination of elevator type
At the beginning of building planning, the use of the building should be clearly defined, because the types of elevators used in hotels, office buildings, hospitals, residential buildings or industrial and mining enterprises are often very different, and once determined, it will be very troublesome to change them.
After the use of the building is determined, the passenger flow is analyzed according to the building area, floor (height), flow of people in and out of the building, and the location of the elevator in the building, so as to determine the elevator speed, load (the load when the elevator car is fully loaded) and the number of elevators required.
Drawing of civil engineering drawing of 2 elevator
After the elevator type, speed, load capacity, number of units, number of stops, total travel height, etc. are determined, the architectural design department can be entrusted to design the blueprint. Here, the Civil Engineering (mainly elevator shaft) part of the elevator should be clearly defined. The design department must provide the same type of standard civil engineering drawings with the elevator manufacturer, and combine the different structures of elevator shaft, such as brick Drawing of civil engineering drawings of elevator for structure, concrete structure, brick concrete structure or steel structure.
It should be added that although the owner may not have determined which manufacturer's elevator products to use at this time, since the civil engineering of elevator manufacturers is based on the National Elevator Standards, even if there are some differences, they are similar and unimportant, so the owners can rest assured.
3 selection of elevator specifications and standards
In the elevator specific manufacturers and brand selection, there is no need to say, because today's elevator market has already become a buyer's market, you can contact as many as you can, as you choose. It should be noted that the general standard products should be used as far as possible in the configuration of hall, car door, car size and elevator specification, because the standard size is unified and the cost is relatively low. For example, two elevators of the same brand have the same speed, load, floor station (number of hall doors) configuration, etc., but one of them is a general standard series product, while the other one's hall door and car size are determined to be non-standard. That is to say, if they need to be processed separately, the equipment cost of the latter will be 10% - 15% higher than that of the former. Of course, if similar measures are adopted Traction or other special specifications of the elevator, the cost can not be avoided and will be even greater.
There is a point that needs more attention from the buyer, because elevator is a special commodity, it is used to order for production sales, in other words, it is like to tailor-made according to your specific requirements. Therefore, once the supply and demand contract is signed, it is very troublesome for the manufacturer to change its specific specifications, dimensions and parameters after it is put into production. If the demander proposes to return the goods, it is generally prepaid to the manufacturer according to the contract The deposit is not refundable. Here, in order to facilitate your choice, let's take a look at the specifications and dimensions of common standard vertical passenger elevators to load 1 For example, the standard should be as follows: the number of passengers is 13, the form of hall door is split door, the size of hall door is 1.0m wide and 2.1m high, and the car size is 1.6m wide, 1.4m deep and 2.3m high (it can be made as 2.3-2.5m high). Therefore, the civil engineering dimension of the shaft is required to be 2.2m wide and 2.3m deep, the clear width of the hall door is 1.24M and the height is 2.24m. The elevator machine room must be located directly above the elevator shaft. These basic data are the basic parameters of unified elevator standard form at home and abroad.
We mentioned the elevator manufacturer and brand. When choosing the elevator factory, elevator brand and installation construction department, the buyer should be more careful. It can also be said that this is a very critical step in purchasing elevators. Therefore, before signing the contract for elevator ordering, it is necessary for the purchasing department to take time to conduct necessary audit and inspection on the supplier; and the manufacturer is obliged to purchase from the supplier Party B shall show the business license, elevator production license, construction enterprise grade qualification of its construction department, installation safety approval certificate and other supporting documents, and also require the buyer's personnel to consult the supplier's pre-sale and after-sales service commitment, warranty time, and understand the actual use status and performance of their products. Specifically, such as this type of elevator has a higher lifting height and more stops The number of stations, special tools used for maintenance, vulnerable spare parts, supply cycle, production volume of such products by the manufacturer, implementation of elevator functions, and market usage, etc., can be included in the inspection contents and items. These contents also directly reflect the comprehensive strength and basic production status of manufacturers.
At present, the elevator production and manufacturing standards issued by the state have clear provisions on the basic functions and operation mode of the elevator. The vertical elevator (except for the sundry elevator, etc.) is generally equipped with a / no driver dual-purpose conversion device. At the same time, it also has maintenance switch, emergency stop button and other functions for special personnel to operate the elevator. However, in terms of function items, there is a big gap between the passenger elevator and the cargo elevator and the sundry elevator. The buyer must choose according to the type of elevator. According to the national elevator production and manufacturing standards, the contents are very detailed. The basic functions of all kinds of elevators are very complete, and the owners do not need to increase the equipment costs. However, some functions (except for the basic functions) such as installing monitoring system inside and outside the car, power failure re leveling device, artificial intelligence magnetic card, etc., are beyond the basic functions. Of course, certain equipment must be added The cost.
4 understanding of elevator national standard
Elevator national standard (refers to the national standard of the people's Republic of China on the elevator production, manufacturing, installation and other standards and regulations for short) in the process of contact with elevator, even if non personnel, also can not avoid to know some national standards