Pump capable of reducing abrasion of front clearance of impeller

The utility model relates to the technical field of centrifugal pumps, and provides a pump capable of reducing abrasion of a front gap of an impeller, which comprises a shell, the impeller, a front lining plate and a rear lining plate, the impeller is rotatably arranged in the shell, the impeller comprises a front cover plate and is rotatably arranged in the shell, the front gap is formed between the front lining plate and the front cover plate, and the front lining plate and the rear cover plate are arranged in the shell. The pressure relief structure is characterized in that the front cover plate is provided with a pressure relief groove, and the pressure relief groove is communicated with the front gap. By means of the technical scheme, the problem that in the prior art, due to impeller front clearance abrasion, the working efficiency of a centrifugal pump is reduced is solved. 本实用新型涉及离心泵技术领域，提出了一种减少叶轮前间隙磨损的泵，包括壳体，叶轮，转动设置在所述壳体内，前衬板，设置在所述壳体内，所述叶轮包括前盖板，转动设置在所述壳体内，所述前衬板和所述前盖板之间形成了前间隙，其特征在于，所述前盖板上开设有泄压槽，所述泄压槽与