CN2204866Y

CN2204866Y - Vertical water spraying slurry pump with trunk pistons

Info

Publication number: CN2204866Y
Application number: CN 94247338
Authority: CN
Inventors: 马宗庆; 郑其武; 于执中
Original assignee: ELECTRIC POWER PROJECT CONSTRUCTION INST MINISTRY OF POWER INDUSTRY
Current assignee: ELECTRIC POWER PROJECT CONSTRUCTION INST MINISTRY OF POWER INDUSTRY
Priority date: 1994-12-13
Filing date: 1994-12-13
Publication date: 1995-08-09
Anticipated expiration: 2004-12-13

Abstract

The utility model relates to a vertical water spraying slurry pump with trunk pistons. A crankshaft is connected with a crosshead through a connecting rod of the crankshaft; one end of a draw rod is connected with the crosshead, and the other end of the draw rod is hinged to a trunk piston through a cross beam and a ball hinge; the trunk piston can be inversely dropped above the pump, the truck piston is driven by the crosshead which is moved in a reciprocating mode, and the truck piston can be vertically moved in a reciprocating mode from top to bottom. The vertical water spraying slurry pump with trunk pistons can be used for improving the stress condition of the truck piston; compared with a horizontal trunk piston pump with the same pressure and discharge capacity, the vertical water spraying slurry pump with trunk pistons has the characteristics of small ground occupation, low cost, etc., and can be used for departments, such as electric power, metallurgy, mines, petroleum, coal mines, water conservation, communication, etc., to convey mine slurry, coal slurry, mud slurry, etc. containing large amounts of solid particulates with strong corrosion.

Description

Vertical water spraying slurry pump with trunk pistons

The utility model belongs to carries mud, mortar pump field, is specifically related to a kind of vertical water spray plunger mud, mortar pump.

At present, a large amount of mortar is carried in the thermal power plant at a distance, is by horizontal water spray plunger pump, this plunger pump is because plunger is the substantially horizontal layout, under the effect of plunger gravity, exist the problem of eccentric wear between plunger and the Sealing, make the working life of plunger and Sealing shorter.In addition, because the connecting rod of drive plunger and the join strength of plunger are subjected to the influence of plunger weight, what therefore plunger diameter can not be done is excessive, for the weight that alleviates plunger is made cylindrical shape with plunger, equally also exist the problem of intensity, therefore horizontal plunger pump carries the flow of mortar to be restricted, and general flow can not meet the demands for jumbo thermal power plant below 200 cubic metres/hour.Moreover crosshead guide rail, water ring, v-ring pressure ring are that bronze is made, and wear resistance is relatively poor, need often maintenance to change.

Horizontal plunger pump is in order to reduce under the plunger action of gravity eccentric wear problem between the plunger that produces and the sealing, single hole water intake mode bottom water ring is taked, thereby exist water usage big, problem such as the circumference all directions washing water quantity of plunger is not too average.

The purpose of this utility model provides a kind of conveying mud, the mortar flow is big, and plunger is arranged vertically, connecting rod and plunger join strength height, vertical water spray plunger mud, mortar pump that wear resistance is good.

This vertical water spray plunger mud, mortar pump, by oil sump 1, bent axle 2, the pump housing 3, crankshaft-link rod 4, crosshead guide rail 5, crosshead 6, inlet valve 7, dual one-way valve 8, water ring 9, v-ring 10, v-ring pressure ring 11, plunger 12, outlet valve 16 compositions such as grade, its bent axle 2 is connected with crosshead 6 by crankshaft-link rod 4, it is reciprocating that crosshead 6 drives plunger, it is characterized in that crosshead 6 is connected with an end of pull bar 15, the other end of pull bar is by crossbeam 14, globular hinge 13 and plunger 12 hinge joints, it is sagging above pump that plunger is inverted, drive plunger 12 by reciprocating crosshead 6, make plunger do vertical pumping, water ring 9 is arranged in being connected with dual one-way valve 8 of plunger on every side.Described plunger 12 is the two cylindrical structures of sealing, and an end is welded with a connecting rod, is fixed on the crossbeam by the globular hinge activity.Described crosshead guide rail, water ring, v-ring pressure ring adopt the ultra high molecular polyethylene material to make.

Use the utlity model has following advantage:

1. because the plunger of vertical plunger pump adopts the Vertical direction inverse manner to arrange that its gravity is downward, there is not the eccentric wear problem between plunger and the Sealing, and water ring can evenly be arranged the water inlet along the plunger circumferencial direction, it is uniform making the circumference all directions washing water quantity of plunger, plunger and Sealing are operated under the clear water environment basically, thereby working life of plunger and Sealing is prolonged greatly and can suitably save sparge water;

2. owing to adopt double cylinder-shaped plunger, improved the plunger stressing conditions, thereby reduce plunger weight, the little cylinder of plunger inside has born the fluid pressure of Vertical direction simultaneously, the plunger outer cylinder only is subjected to the pump liquid pressure in the cylndrical surface all directions, the wall thickness of outer cylinder is attenuate greatly, therefore can strengthen the diameter of plunger, the flow of plunger pump can be reached more than 510 cubic metres/hour, simultaneously can be divided into treble ram pump, five-plunger pump, seven plunger pumps by the quantity of plunger according to big young pathbreaker's plunger pump of flow;

3. owing to adopt globular hinge between crossbeam and the plunger, avoided since pull bar make, positional deviation during installation produces moment of flexure, overcome moment of flexure and acted on the additional friction power of bringing on the plunger;

4. crosshead guide rail, water ring, v-ring pressure ring adopt the ultra high molecular polyethylene material to make, and have replaced original bronze material, have characteristics such as friction ractor is little, the life-span is long, cost is low.The slurry that also contains the strong solid particle of macro-corrosion applicable to department's transfer ore pulp, coal slurry, mud etc. such as metallurgy, mine, oil, colliery, water conservancy, traffic.Compare with the horizontal plunger pump of uniform pressure, same displacement and to have characteristics such as floor space is little, cost is low.

Embodiment of the present utility model respectively schemes referring to following:

Fig. 1 is the sectional drawing of single plunger pump

Fig. 2 is the plan view of five-plunger pump

Fig. 3 is the plan view of five-plunger pump

Among the figure:

1---oil sump 2---bent axle 3---pump housing

4---crankshaft-link rod 5---crosshead guide rail 6---crossheads

7---inlet valve 8---dual one-way valve 9---water rings

10---v-ring 11---v-ring pressure ring 12---plungers

13---globular hinge 14---crossbeam 15---pull bars

16---outlet valve 17---pulp-inlet pipe 18---grout outlets

Fig. 1 is that the A-A of Fig. 2 is to view, oil sump 1 is arranged in the below of the pump housing 3 among the figure, bent axle 2 is arranged in the oil sump and is connected with crankshaft-link rod 4, what be connected with crankshaft-link rod above bent axle is crosshead 6, crosshead is outward a crosshead guide rail 5, there are two pull bars 15 top of crosshead, the other end of pull bar stretches out the pump housing and is connected and fixed by bolt with topmost crossbeam 14, crossbeam is horizontally through the spheroid of globular hinge 13, plunger 12 is two cylindrical structures of sealing, connecting rod on the plunger vertically passes the lower lock block of globular hinge, spheroid, the upper holder block bolt, plunger is vertically hung upside down above pump, water ring 9 be arranged in uniformly plunger around, flush water pump is supplied with the water ring high-pressure washing water by the dual one-way valve, wash out the solid particle of the part of plunger and Sealing, wear-resisting ultra high molecular polyethylene material is made v-ring 10, the top that v-ring pressure ring 11 is arranged in water ring seals slurries, pulp-inlet pipe 17, grout outlet 18 is arranged in the both sides of the pump housing.

Described dual one-way valve 8 is that two one-way valves are cascaded, and avoids buck to pour in down a chimney in flush water pump, and is more reliable during work.

Because the plunger diameter of vertical plunger spraying cement, mortar pump is bigger, the discharge capacity of each cylinder is all quite big, in order to alleviate the weight of valve, prolongs the working life of valve, and inlet valve 7, outlet valve 16 adopt bivalve in parallel.

Five-plunger pump among Fig. 2 is that the inlet manifold with single plunger pump communicates with pulp-inlet pipe, the outlet clack box communicates with grout outlet, their oil sump and the pump housing are connected as a single entity, and motor drives the bent axle rotation by speed reducer and makes the asynchronous operation of five-plunger pump, and speed of crankshaft per minute 66 commentaries on classics and 74 are changeed two kinds.Bent axle rotates, and drives crosshead by crankshaft-link rod and pumps along guide rail, and two fixing on crosshead pull bars drive plunger and pump by crossbeam, globular hinge.When plunger moves upward, produce negative pressure, inlet valve is opened thereupon, and mortar enters in the cavity of plunger bottom; When plunger moved downward, inlet valve top was owing to the pressure of slurry is closed, and outlet valve is by slurry jack-up, and slurry is discharged into line transportation in the cavity and walks.

The main journal of bent axle and crank pin all adopt sliding bearing, and being furnished with gear oil pump is sliding bearing and crosshead supplying lubricating oil, and supplementary equipment has oil purifier, cooler, lubricating oil pressure gauge and oil temperature gauge, safety, reliable during with the operation of assurance crankshaft ﹠ connecting.Bent axle adopts many supporting way, and three plungers have 4 supports, and five plungers have 6 supports, in order to flexural stress and the weight that reduces bent axle.

Claims

1, a kind of vertical water spray plunger mud, mortar pump, by oil sump 1, bent axle 2, the pump housing 3, crankshaft-link rod 4, crosshead guide rail 5, crosshead 6, inlet valve 7, dual one-way valve 8, water ring 9, v-ring 10, v-ring pressure ring 11, plunger 12, outlet valve 16 compositions such as grade, its bent axle 2 is connected with crosshead 6 by crankshaft-link rod 4, it is reciprocating that crosshead 6 drives plunger, it is characterized in that crosshead 6 is connected with an end of pull bar 15, the other end of pull bar is by crossbeam 14, globular hinge 13 and plunger 12 hinge joints, it is sagging above pump that plunger is inverted, drive plunger 12 by reciprocating crosshead 6, make plunger do vertical pumping, water ring 9 is arranged in being connected with dual one-way valve 8 of plunger on every side.

2, vertical water spray plunger mud according to claim 1, mortar pump is characterized in that described plunger 12 is the two cylindrical structures of sealing, and an end is welded with a connecting rod, is fixed on the crossbeam by the globular hinge activity.

3, vertical water spray plunger mud according to claim 1, mortar pump is characterized in that described crosshead guide rail, water ring, v-ring pressure ring adopt the ultra high molecular polyethylene material to make.

4, vertical water spray plunger mud according to claim 1, mortar pump is characterized in that the inlet/outlet valve adopts bivalve in parallel.