The invention discloses a centrifugal pump capable of improving flow capacity. The centrifugal pump comprises a pump body provided with an impeller chamber, and a motor fixed together with the pump body, wherein a motor shaft is connected with a pump shaft inside the impeller chamber, an impeller is fixed on the pump shaft, the impeller comprises a center hole and a hub fixed together with the pump shaft, and a front cover plate and a rear cover plate are respectively arranged on the front side and the rear side of the hub in a manner of surrounding the hub, an overflowing passage communicated with the inlet in the front side of the hub is formed between the front cover plate and the rear cover plate, and the diameter of the front cover plate is smaller than that of the rear cover plate. The centrifugal pump provided by the invention can enhance the flow capacity of solid particles in a medium.

Centrifugal pump capable of improving flow capacity

The invention discloses a direct-connected water pump. The direct-connected water pump comprises a pump body provided with an impeller chamber, and a motor fixed together with the pump body, wherein a pump shaft is arranged inside the impeller chamber, a motor shaft is connected with the pump shaft, an impeller is mounted on the pump shaft, the motor shaft and the pump shaft are coaxially butted, welded and connected integrally, the motor shaft is provided with a socket in a butting end, the pump shaft is provided with an insertion part in the butting end, and the insertion part is in interference fit with the socket in a hot pressing manner. Due to the adoption of the technical scheme, the motor shaft self can be made of a common material, the pump shaft adopts a special material, the production cost is lowered, most of metal materials can be combined for preparation, and the processing is simple.

Direct-connected water pump

The invention relates to a high pressure resistant circulating pump structure. The high pressure resistant circulating pump structure includes a pump body, a pump cover, an impeller, a shaft, a double-suction seal ring, a shaft sleeve, bearings and the like; except that the shaft is made of high-quality carbon steel, the rest is made of cast iron; the pump body and the pump cover form a working room of the impeller; pipe screw holes for installing a vacuum gauge and a pressure gauge are formed in a water inlet flange and a water outlet flange, and pipe screw holes for water drainage are formedin the lower part of the water inlet flange and the lower part of the water outlet flange; and after static balance verification, the impeller is fixed by the shaft sleeve and shaft sleeve nuts on both sides, the axial position of the impeller can be adjusted by the sleeve nuts, and the axial force of the impeller is balanced by the symmetrical arrangement of blades of the impeller. According tothe high pressure resistant circulating pump structure, a suction port and a discharge port are formed under the pump axis line, the impeller is equivalent to two single suction impellers of the samesize working together, and the flow can be doubled under the condition of the same diameter as the impeller of a single-stage centrifugal pump.

High pressure resistant circulating pump structure

The invention discloses a single-stage double-suction centrifugal ash flushing pump The pump comprises a pump body, a pump shaft and a coupling, wherein the pump body is connected with a pump cover through a double-head bolt, impellers are arranged in the pump body, the impellers are connected to the middle of the pump shaft through an impeller key, a first bearing and a second bearing are arranged on the pump shaft at the two sides of the outer side of the pump body correspondingly, and the coupler is connected to one end of the pump shaft through a key body; and a shaft sleeve is arranged at the position, in contact with the pump body, of the pump shaft, a packing is arranged on the outer circumferential surface of the shaft sleeve, a spacer ring is arranged in the middle of the packing, the contact parts of the shaft sleeve and the inner wall and the outer wall of the pump body are fixed through a packing sleeve and a packing pressing cover correspondingly in a sealed mode, and screwed plugs are arranged at bulges on the pump cover The problems that in the prior art, the ash flushing pump is poor in sealing performance leading that abrasion and oil leakage are prone to be occurred in the using process are solved

Single-stage double-suction centrifugal ash flushing pump

The invention discloses a high-flow single-stage double-suction centrifugal slag flushing pump The high-flow single-stage double-suction centrifugal slag flushing pump comprises an impeller, a pump shaft and a pump case The pump shaft penetrates through the two sides of the pump case The impeller is located in the pump case and connected to the pump shaft through an impeller key in a sleeving mode The pump case is of a double-volute structure The impeller is provided with eight impeller blades arranged in central symmetry, and a sharp-crested impeller water outlet is formed between the two of the impeller blades Through the high-flow single-stage double-suction centrifugal slag flushing pump, the problems that a single-stage centrifugal slag flushing pump is large in size and small in flow and big-size and big-weight waste slag are not flushed cleanly in the prior art are solved

High-flow single-stage double-suction centrifugal slag flushing pump

The utility model relates to a center is equipped with the axle in the pump structure, especially a single -stage double suction split case pump, the pump body, the pump body is central symmetry and controls the shape, and its top is equipped with the pump cover, and the center is equipped with the axle in the pump body, install bilateral symmetry's impeller on the pump body central line, the double suction sealing ring that the symmetry set up is installed with the pump body and pump cover clearance department to the impeller, the axle sleeve is installed to the epaxial symmetry in impeller both sides, it is fixed that the left side axle sleeve passes through the sleeve nut, the organic holding ring that seals of installation on the axle sleeve of impeller both sides, the left end of axle is provided with bearing body second, and the two constitutes to rotate through the bearing connects, bearing body first is installed to the right part of axle, and the two constitutes to rotate through the bearing connects, the utility model discloses among the technical scheme, its advantage is that the operation is stable, has lightened the influence of medium to the mechanical seal effort greatly, has lengthened the machine and has sealed life, and the pump body adopts integral casting rigidity good in addition, and middle support structure binds steadily.

Single -stage double suction split case pump

The utility model discloses an evaporative crystallization circulating pump which comprises a coupling, a bearing support, a bearing block, a shaft, a shaft seal box, a pump body and an impeller. The shaft seal box is positioned on the left side of the pump body, is fixedly connected with the pump body and is filled with packing, the shaft is fixedly supported by the bearing block, the coupling is connected to one end of the shaft, the other end of the shaft penetrates the shaft seal box to be suspended in the pump body, the impeller is fixed onto a suspension arm end of the shaft, the shaft seal box further comprises a packing gland, a throttle ring and a shaft sleeve, the packing is positioned between the shaft seal box and the shaft sleeve, the packing gland is connected to the tail of the packing, the throttle ring is positioned in a gap between the front end of the shaft sleeve and the shaft seal box, and an annular cooling chamber is arranged on the bearing block, is provided with a water inlet and a water outlet and is connected with a cooling water device. The evaporative crystallization circulating pump has the advantages of low cost, good sealing effect, convenience in maintenance and flexibility in mounting.

Evaporative crystallization circulating pump

The utility model discloses a double-suction centrifugal pump boring rod transmission disc which comprises a clamping jaw, a sliding sleeve arranged on the clamping jaw, an elastic piece and a positioning disc, the elastic piece and the positioning disc are connected to the two ends of the clamping jaw respectively, and a locking assembly used for fixing the sliding sleeve is arranged on the sliding sleeve. Each clamping jaw comprises a fixed section connected with the positioning disc, a sliding section perpendicularly connected with the fixed section and an elastic section connected to the end, away from the fixed section, of the sliding section. The elastic piece is installed on the inner wall of the elastic section, the sliding sleeve is located on the outer wall of the sliding section, and a buckling piece is arranged on the inner wall of the sliding section. The sliding sleeve is locked or loosened through the locking assembly, movement of the sliding sleeve on the clamping jawsis achieved, then the clamping jaws and the positioning disc are clamped and loosened, rapid clamping and disassembling and assembling of the transmission disc are achieved, operation is easy, and disassembling and assembling are convenient and rapid.

Ye Mingzhong

Papers

Single -stage double suction split case pump

Evaporative crystallization circulating pump

Boring rod driving disc of double-suction centrifugal pump