Pump-based design conditions

Pump foundation design conditions: stainless steel magnetic pump, high temperature magnetic pump, engineering plastic magnetic pump (1) installation of pump units and auxiliary equipment dimensions, including the base size, the number of anchor bolts, diameter, length, outcrop length and location dimensions , Total unit weight and so on. Today's latest valid order information free to send! Morning latest buyers information free to send! Punch grab Rob here! (2) pump operating speed range, rated power. (3) Important large pumps shall be marked with the location of the center of gravity of the unit, the weight and center of gravity of the rotating parts, and the maximum unbalanced forces and moments. (4) anchor bolt fixation (direct embedding method or reserved {L - sub-grouting method, the latter recommended). General requirements of the pump foundation (1) The basic size of the pump is usually determined by the pump base size, the distance from the base edge to the base side is generally l00 ~ 120ram. The basic surface is generally 200ram higher than the ground. The reserved holes for anchor bolts are generally l00mm × l00mm square holes, and the depth is determined by the length of anchor bolts. (2) The pump foundation must be capable of withstanding the maximum static load and dynamic load of the pump and piping, without any damage or settlement affecting the pump operation. (3) The basis weight, for the rotary pump, generally at least 3 times the total weight of the pump unit, reciprocating pump 5 times. (4) In order to avoid resonance, the ratio of the interference force to the natural frequency of the pump system should be less than 0.7 or more than 1.3. (5) The thickness of the concrete between the perimeter of the bolt hole and the outer surface of the foundation should not be less than 75 mm. (6) In order to remove the floating pulp and attachments on the top surface of the foundation, a 5-20 mm thick surface shall be chiseled, and appropriate initial grouting allowance shall be left in view of initial shrinkage. (7) The secondary surface to be grouted should be shoveling out of the surface, pitting depth should not be less than lomm, density of 3 to 5 pits / dmz. Surface is not allowed to have oil and loose layer, put the foundation surface should be shovel shovel, the horizontal tolerance of 2mm / m. (8) According to SH / T 3541--2007 "Specification for Construction and Acceptance of Petrochemical Pump Sets", the grade of secondary grouting layer should be one grade higher than that of basic concrete. For the implementation of APl610 standard pump, it is recommended that the secondary grout layer not shrink concrete, usually epoxy mortar, the highest point of each sub-base segment, should be set vent, should ensure that the second grouting layer filled with base Below the entire cavity without forming an air pocket so that the base is sufficiently rigid. This is very important for a steel plate stamping base or channel welded base pump, otherwise the pump vibration value will be exceeded, affecting the seal and bearing life. When epoxy mortar is used, the base surface after blasting shall be coated with an epoxy mortar compatible primer. (9) The secondary grouting should be carried out as soon as possible after the final alignment of the pump unit is qualified. If more than 24 hours, the secondary grouting should be corrected again before the secondary grouting. (10) Before the second grouting, a template should be laid. The distance from the outer template to the outer edge of the pump base should not be less than 60mm. The template should be wiped off after being removed. The outer surface of the plastering layer should be smooth, the slope of the upper surface slightly outward, and the height slightly lower than the upper surface of the outer edge of the base. (11) Secondary grouting should be carried out continuously, shall not be graded irrigation.

At present, there are two kinds of sector bathtub on the market, regular bathtubs and sector jacuzzi bathtub, so the choice of size should be based on its specific function. If it is an ordinary bathtub, then there is not much requirement for the choice of size, if it is a inddor Jacuzzi tub, It is suggested that the size be larger. Regarding the size choice, must consider the sector bathtub price, own toilet size is also considered an important factor.

Although the sector bathtub can effectively save room space, but overall, the bathtub still occupies a lot of space, so consider the size of the bathroom. Make sure that after the bathtub is in, there is plenty of room in the bathroom. This choice of size is appropriate.

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