SU1652668A2 - Vane pump suction pipe - Google Patents

Abstract

The invention relates to hydraulic engineering and allows to increase reliability by purifying water from bottom sediments. The diffusers 1 and 2 are interconnected by means of an elbow 3. The buffer chamber 4 is installed on the first downstream diffuser (K) 1, while on the surfaces the last has holes (О) 5. Buffer chamber 4 communicates with К 1 and knee 3 by means of 05 and slots 6. The suction pipe is equipped with circular slurry pipes 7 with nozzles 8 of smaller diameter, tangential channels 9, collector 10 and connected to the latter ground one 11. Pulpovody 7- and nozzles are installed under the bottom of K1 parallel to each other and communicate with each other, with the collector 10 and with O 5 at the bottom of K 1 by means of tangential channels 9 arranged with the possibility of twisting the pulp in all the pulp lines 7, nozzles 8 and the collector 10 in one direction. About 5 days To 1 can be made in the form of slots and arranged in a staggered order. Part of the pumped liquid with bottom sediments through O 5, nozzles 8. slurry pipes 7 and collector 10 is sucked away by a ground pump 11. In addition, the arrangement of channels 9 allows the pulp to be maintained in one direction, which reduces the likelihood of sedimentation in the discharge path. The arrangement of O 5 in staggered order and the implementation of the latter in the form of slots contributes to more reliable removal of sediment from the bottom of K 1 and better water purification before the vane pump. 2 hp ff, 5 or o and y about 00 yu 6a1

Description

The invention relates to hydraulic engineering, namely to the designs of water intake devices of vane pumps, and is complementary to the author. St. N 1348564.

The purpose of the invention is to increase reliability by purifying water from bottom sediments.

Figure 1 shows the proposed device, a longitudinal section; figure 2 is a section a - a in figure 1; on fig.Z - section B - B in figure 2; figure 4 - section b - b in figure 2; figure 5 is a view of G in figure 2.

The suction pipe of the vane pump contains confusors 1 and 2 interconnected by means of elbow 3, a buffer chamber 4 mounted on elbow 3 and the first confuser 1 along the flow, while holes 5 are made on the surfaces of the latter and on the outer and inner sides of the knee 3 - step tangential slots 6, the buffer chamber 4 communicating with confuser 1 and knee 3 through holes 5 and slots 6. The suction pipe is equipped with circular slurry pipes 7 with nozzles 8 of smaller diameter, tangential nozzles 9. a collector 10 and ground pumps 11 connected to the latter. Pulpovody 7 and nozzles 8 are installed under the bottom of the first confuser 1 along the flow parallel to each other and communicate with each other with the collector 10 and with openings 5 at the bottom of the first confuser 1 along the flow of tangential nozzles 9 located with the possibility of twisting the pulp in all of the nozzles 8, pulp lines 7 and the collector 10 in one direction. The holes 5 in the bottom of the first downstream confuser 1 can be made in the form of slots and are arranged in a checkerboard pattern.

The device works as follows.

When pumping water with bottom pumps contained in it, the latter are deposited on the bottom of the confuser 1, while operating the ground pump 11 creates

a vacuum in the slurry lines 7. nozzles 8 and the collector 10, which allows to suck part of the pumped liquid with bottom sediments through the holes 5. The shape and location of the tangential nozzles 9 allows for the slurry to spin in one direction, as well as to ensure the serial connection of the nozzles 8, and slurry pipes 7 to the collector 10. As a result

the reliability of pulp pumping increases (due to a decrease in the probability of sediment deposition in nozzles 8), slurry lines 7 and collector 10. Removal of bottom sediments from the confuser 1 cavity facilitates cleaning

water and allows you to increase the reliability of the vane pump. Making the holes 5 in the form of slits allows increasing the uniformity of the pulp twist in the outgoing tract, and the arrangement of the holes 5 in

staggered order contributes to a more complete and uniform removal of sediment from the bottom of the confuser 1.

Claims (3)

1. Suction pipe of a vane pump on avt., Sv. No. 1348564, characterized in that, in order to increase reliability by cleaning water from bottom sediments, the suction pipe is provided with circular slurry pipes with nozzles of smaller diameter. tangential nozzles, a collector and a ground pump connected to the latter, the slurry pipes and nozzles are installed under the bottom of the first along the confuser flow parallel to each other and communicated between each other, with the collector and with the holes in the bottom of the first confuser along the flow through tangential nozzles arranged with the possibility of pulp twisting in all the nozzles, flow lines and collector in one direction. 2. A pipe according to claim 1, characterized in that the holes in the bottom of the first downstream confuser are made in the form of slots. 3. The pipe according to claim 2, characterized in that the holes in the bottom of the first along the flow The confuser is staggered. FIG. 2 / 7 ///////////. FIG. FIG. five