A kind of overheat protection device for fire pump in low flow operation
A technology of overheat protection and low flow, which is applied to components, pumps, pump components, etc. of pumping devices used for elastic fluids. It can solve the problems of poor heat dissipation performance of fire pumps, and achieve the effect of facilitating maintenance, installation and disassembly.
Active Publication Date: 2019-07-12
HEFEI HENGDAJIANGHAI PUMP IND CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to solve the shortcomings of poor heat dissipation performance of existing fire pumps, and propose an overheating protection device for water pumps operating at low flow rates
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[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.
[0023] refer to Figure 1-4 , an overheating protection device for a fire-fighting water pump at low flow rate operation, comprising a pump body 21, a motor base 5, and a cooling assembly, the top of the pump body 21 is provided with a cylindrical motor base 5, and the top of the pump body 21 extends horizontally with a mounting plate 2 .
[0024] The top of the motor base 5 is provided with a protective cover 6, and the bottom of the protective cover 6 is connected with a horizontally arranged pressing plate 7 through a connecting rod. The middle part of the motor base 5 is provided with a circular groove, and the bottom surface of the circular groove is circumferen...
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The invention relates to the technical field of firefighting water pumps, in particular to an overheat protection device for a firefighting water pump in low-flow operation. The overheat protection device comprises a pump body, a cylindrical motor seat, a mounting plate and a cooling assembly. The motor seat is arranged at the top of the pump body, the mounting plate is arranged at the top of thepump body in the horizontally-extending mode, and a protection cover is arranged at the top of the motor seat in a pressing mode. A horizontally-arranged pressing plate is connected to the bottom of the protection cover through a connecting rod, a cylindrical groove is formed in the middle of the motor seat, and a plurality of flow pass holes are circumferentially distributed in the bottom face ofthe cylindrical groove. Openings of the two ends of each flow pass hole are upward vertically. The cooling assembly comprises a water storing tank, a circulating water pump, a liquid supply assemblyand a liquid return assembly, the water storing tank is arranged on one side of the bottom face of the mounting plate, and a water outlet of the water storing tank is connected with the circulating water pump through a water pipe. Through the arranged cooling assembly adopting water cooling for heat dissipating, heat dissipating can be rapidly conducted on the pump body, and a pump shell is effectively protected against damage.
Description
technical field [0001] The invention relates to the technical field of fire-fighting water pumps, in particular to an overheat protection device for fire-fighting water pumps in low-flow operation. Background technique [0002] Most of the fire pumps are in the low-flow operating state for a long time. The fire pumps are mechanical fluid equipment. During operation, the friction between the rotor and the stator generates heat, which is transferred to the flow medium. When the flow rate of the flow medium is small, the heat accumulation causes the pump If the casing is damaged, it may even cause the mechanical seal of the fire pump to overheat, leading to serious accidents such as pump shaft lockup, and the pump motor will generate a lot of heat during operation, which will not damage the pump casing. Therefore, a fire pump that can dissipate heat quickly is urgently needed. [0003] invention content [0004] The purpose of the present invention is to solve the shortcoming ...
Claims
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IPC IPC(8): F04B53/08F04B17/03
CPCF04B17/03F04B53/08
Inventor 梁樑朱庆龙金雷龚昌明王宁叶卫宁周莹张瑾宋天涯李连颖胡薇
Owner HEFEI HENGDAJIANGHAI PUMP IND CO LTD