A horizontal cold water pump

Abstract

The invention discloses a bedroom cold water pump comprising a motor part assembly, a volute assembly, a circulating cooling filter assembly and a cutting assembly. One part of water of a sewage outlet of a water outlet base of the volute assembly is introduced into a cooling sealing cavity in the motor part assembly through the circulating cooling filter assembly, sewage is used for circularly cooling a motor in a motor sealing cavity, energy utilization of resources is achieved, and the motor can be rapidly cooled. The cutting assembly is arranged in the volute assembly, arc tool slots are arranged on the two sides of the bottom end of a cutting tool bit in a mirror image mode, the rotary cutting efficiency of the two ends of the cutting tool bit can be improved through the arc tool slots, hard impurities can be rapidly cut, and the cutting effect is good. A thread protruding ring is in clamped connection with the interior of a ring-hook-shaped avoiding groove and is fixed through aconnection bolt, and connection firmness between the cutting tool bit and a cutting port ring part can be effectively ensured. By means of up-down matching arrangement of the cutting tool bit and thecutting port ring part, impurities are not likely to be clamped in the cutting assembly to caused faults and damage.

Description

technical field [0001] The invention relates to the technical field of fluid mechanical equipment, in particular to a horizontal cold water pump. Background technique [0002] With the development of cities, urban subways, hotels, restaurants and environmental protection requirements, horizontal cold water pumps are more and more widely used in my country, which directly drives the development of small integrated pump stations in China, and at the same time drives the supporting integrated pump station cylinders , valves, mechanical seals and automatic control industries. The structural design of the existing horizontal cold water pump is unreasonable, and the internal parts of the motor are usually burned and damaged due to overheating after use, which affects the overall operation. To cool the motor, but there are many problems in this kind of products: the oil is volatile and difficult to cool after being exposed to high temperature, and the circulated oil is easily mixed...

AI Technical Summary

Problems solved by technology

[0003] The problem to be solved by the present invention is to provide a mechanical seal clamp between the transmission shaft and the impeller, the mechanical seal clamp seals the motor seal chamber and the cooling seal chamber respectively with the volute assembly, which can effectively prevent the volute from The water in the components enters the sealed chamber of the motor, causing failure or damage to the components in the motor. At the same time, it can effectively prevent unfiltered sewage from directly infiltrating into the sealed cooling chamber, and effectively prevent debris from entering the sealed cooling chamber and causing blockage. ; Through the circulating cooling filter assembly, part of the water from the sewage outlet of the water outlet seat of the volute assembly is introduced into the cooling sealed chamber of the motor assembly, and the sewage is used to circulate and cool the motor in the sealed chamber of the motor to realize energy conversion of resources Utilization enables the motor to achieve rapid cooling, and at the same time, the heated water can be returned to the water inlet seat in the volute assembly through the three-stage corrugated circulating water outlet pipe for circulating cooling, and the filter can effectively avoid the sundries in the sewage and Fine particles of impurities enter the circulation pipe and cause it to block, which can effectively avoid many problems such as the motor is volatile, high cost, and difficult to cool after the temperature rises through oil circulation; the primary circulation water inlet pipe, the secondary circulation pipe, The inner surface of the connecting elbow and the three-stage corrugated circulating water outlet pipe is coated with a self-cleaning layer. The self-cleaning layer is a nano-coating, which can self-clean the pipe and ensure the cleanliness of the pipe; the cutting head The two sides of the bottom end are mirrored with arc-shaped slits, which can increase the efficiency of rotary cutting at both ends of the cutting head, and can quickly cut hard debris with good cutting effect. The arc-shaped slits and horizontal lines The formed included angle is 30°-75°. Through effective multiple designs and experiments, the above-mentioned range limitation can better ensure the overall cutting efficiency of the cutting assembly and achieve the purpose of design and use; the threaded raised ring snaps on the ring The hook-shaped relief groove is fixed by connecting bolts, which can effectively ensure the fixity of the connection between the cutting head piece and the cutting ring piece; the upper and lower matching arrangements of the cutting head piece and the cutting mouth ring piece can make it difficult for debris to get stuck The problem in the cutting assembly that caused its failure and damage; the first-level hexagon socket screw passes through the drive shaft through hole on the cutting head piece and the cutting mouth ring and is fixed in the drive shaft through hole to connect the cutting head piece and the cutting mouth ring It is fixed on the transmission shaft, effectively ensuring the fixation of the cutting head and the cutting ring on the transmission shaft, and the horizontal cold water pump with good fixing effect

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