CN217462511U

CN217462511U - Cylinder body assembly for horizontal sludge plunger pump

Info

Publication number: CN217462511U
Application number: CN202220289134.XU
Authority: CN
Inventors: 余仁飞
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-02-14
Filing date: 2022-02-14
Publication date: 2022-09-20
Anticipated expiration: 2032-02-14

Abstract

The utility model discloses a cylinder body component for a horizontal sludge plunger pump in the field of sludge pumps; the sludge plunger pump comprises a cylinder body, an end cover, a piston and a piston rod; the cylinder body assembly comprises a filter cloth bag which is positioned in the cylinder body, one end of the filter cloth bag is fixed on the piston, the other end of the filter cloth bag is fixed on the cylinder body or the end cover, the filter cloth bag can stretch and move along the length direction of the cylinder body, is used for isolating dirt and avoiding the dirt from directly contacting with the inner wall of the cylinder body, and has certain water permeability. The cylinder body subassembly of design like this can completely cut off the filth and avoid sewage and cylinder body inner wall and piston direct contact to make cylinder body inner wall and piston wearing and tearing slower, the fault rate is lower, and life is longer.

Description

Cylinder body assembly for horizontal sludge plunger pump

Technical Field

The utility model relates to a sludge pump field, in particular to horizontal sludge plunger pump is with cylinder body subassembly.

Background

In the process of treating sludge, the plunger pump is a commonly used sludge dewatering machine feed pump, can convey a medium with high viscosity and poor fluidity, has no shearing, stirring or turbulence pulsation phenomenon on the medium, has stable pumping, and is widely applied to the sludge dewatering machine feed pump.

Mud plunger pump among the prior art, its cylinder body and piston wearing and tearing are very fast, and life is shorter relatively, and its leading cause is, at suction in-process cylinder body inner wall and piston direct and sewage contact, silt in the sewage can remain on cylinder body inner wall or piston, and then the wearing and tearing of cylinder body and piston with higher speed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a can completely cut off filth and make horizontal mud plunger pump cylinder body subassembly that cylinder body inner wall and piston wear and tear slower.

The purpose of the utility model is realized like this: a cylinder body component for a horizontal sludge plunger pump; the sludge plunger pump comprises a cylinder body, an end cover, a piston and a piston rod; the cylinder body assembly comprises a filter cloth bag which is positioned in the cylinder body, one end of the filter cloth bag is fixed on the piston, the other end of the filter cloth bag is fixed on the cylinder body or the end cover, the filter cloth bag can stretch and move along the length direction of the cylinder body, is used for isolating dirt and avoiding the dirt from directly contacting with the inner wall of the cylinder body, and has certain water permeability.

Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model provides a cylinder body subassembly can completely cut off the filth and avoid sewage and cylinder body inner wall and piston direct contact under the prerequisite that does not influence plunger pump suction work to make cylinder body inner wall and piston wear and tear slower, the fault rate is lower, and life is longer.

As a preferred scheme of the present invention, the filter cloth bag is in a bellows shape, and includes a cylindrical filter cloth body, and further includes a plurality of support rings and elastic contraction rings disposed on the filter cloth body and evenly spaced along the length direction thereof; the support ring is not elastically deformable, and the elastic contraction ring is elastically deformable. The design makes the flexible folding deformation of filter cloth bag more regular, and is littleer with the wear of cylinder body inner wall to the life of extension filter cloth bag.

Furthermore, the cylinder body assembly also comprises a bottom fixing mechanism used for fixing the inner side end of the filter cloth bag, the bottom fixing mechanism comprises a pressing plate, and the pressing plate is positioned in the filter cloth bag and used for pressing the inner side end of the filter cloth bag on the piston; and a plurality of fixing bolts are arranged on the piston in a centrosymmetric manner and used for fixedly arranging the pressing plate on the piston so as to fix the inner side end of the filter cloth bag. The design structure is simple, and the fixation is stable.

Furthermore, a fixed clamping groove is formed in an opening, close to one end of the end cover, of the cylinder body; the outer side end of the filter cloth bag is provided with a fixing ring matched with the fixing clamping groove. The design structure is simple, the installation is convenient, and the fixation is stable.

As the utility model discloses an optimal scheme, the upper portion that above-mentioned cylinder body is close to end cover one end is equipped with washes the mouth, and its lower part is equipped with the drain, all is equipped with the detachable head on above-mentioned wash mouth and the drain. The design is convenient like this to wash inside the cylinder body, can in time discharge the foreign matter in the cylinder body to delay the use wearing and tearing of cylinder body, prolong the holistic life of equipment.

Drawings

Fig. 1 is the matching relation schematic diagram of the cylinder body and the cylinder body assembly.

Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.

The device comprises a cylinder body 1, a fixing clamping groove 1a, an end cover 2, a piston 3, a piston rod 4, a filter cloth bag 5, a filter cloth body 5a, a support ring 5b, an elastic contraction ring 5c, a fixing ring 6, a pressing plate 7, a fixing bolt 8, a flushing port 9, a sewage draining outlet 10 and an end enclosure 11.

Detailed Description

As shown in fig. 1-2, a cylinder assembly for a horizontal sludge plunger pump; the sludge plunger pump comprises a cylinder body 1, an end cover 2, a piston 3 and a piston rod 4; the cylinder body assembly comprises a filter cloth bag 5 which is positioned in the cylinder body 1, has one end fixed on the piston 3 and the other end fixed on the cylinder body 1 or the end cover 2, can stretch and move along the length direction of the cylinder body 1, is used for isolating dirt to avoid direct contact between the dirt and the inner wall of the cylinder body 1, and has certain water permeability.

The filter cloth bag 5 is in a corrugated telescopic tube shape, and comprises a cylindrical filter cloth body 5a, a plurality of support rings 5b and elastic contraction rings 5c, wherein the support rings 5b and the elastic contraction rings 5c are arranged on the filter cloth body 5a and are uniformly distributed at intervals along the length direction of the filter cloth body; the support ring 5b is not elastically deformable, and the elastic contraction ring 5c is elastically deformable. As the piston 3 moves leftwards, the filter cloth bags 5 gradually expand and are changed to be cylindrical, and the outer surface of the middle filter cloth body 5a overcomes the action of the elastic contraction ring 5c and is gradually straightened, so as to extend and extend; on the contrary, the filter cloth bags 5 are gradually contracted and folded, and the outer surface of the middle filter cloth body 5a is regularly and gradually contracted and folded inwards under the action of the elastic contraction ring 5 c.

The cylinder body assembly also comprises a bottom fixing mechanism for fixing the inner side end of the filter cloth bag 5, the bottom fixing mechanism comprises a pressing plate 7, and the pressing plate 7 is positioned in the filter cloth bag 5 and is used for pressing the inner side end of the filter cloth bag 5 on the piston 3; the fixing bolts 8 are arranged on the piston 3 in a centrosymmetric mode, and the fixing bolts 8 are used for fixedly installing the pressing plate 7 on the piston 3 and further fixing the inner side end of the filter cloth bag 5. When the inner side end of the filter cloth bag 5 is fixed, the bottom of the filter cloth bag 5 is directly pressed by the pressing plate 7 to be close to the piston 3, and then the pressing plate 7 is locked and fixed by the fixing bolt 8, namely the inner side end of the filter cloth bag 5 is fixed.

A fixed clamping groove 1a is arranged at an opening of the cylinder body 1 close to one end of the end cover 2; the outer side end of the filter cloth bag 5 is provided with a fixing ring 6 matched with the fixing clamping groove 1 a. When the outer end of the filter cloth bag 5 is fixed, the fixing ring 6 is directly placed into the fixing clamping groove 1a, and then the outer end of the filter cloth bag 5 can be fixed along with the closing of the end cover 2.

The upper part of the cylinder body 1 close to one end of the end cover 2 is provided with a flushing port 9, the lower part of the cylinder body is provided with a sewage draining exit 10, and the flushing port 9 and the sewage draining exit 10 are both provided with detachable end sockets 11.

When the reciprocating piston type cylinder works, the piston 3 continuously reciprocates along the cylinder body 1; when the piston 3 moves leftwards, the filter cloth bag 5 extends leftwards and gradually expands, meanwhile, sewage is sucked into the filter cloth bag 5, and a small amount of sewage is filtered by the filter cloth bag 5 and then permeates into the outer surface of the filter cloth bag 5 to be directly contacted with the inner wall of the cylinder body 1; when the piston 3 moves rightwards, the filter cloth bag 5 is folded rightwards and retracted, meanwhile, sewage in the filter cloth bag 5 is discharged, and filtered water which permeates into the outer surface of the filter cloth bag 5 and is directly contacted with the inner wall of the cylinder body 1 can also permeate into the filter cloth bag 5 reversely and then is discharged; the reverse osmosis filtered water not only can dissipate heat for the cylinder body 1, but also has a certain flushing effect on the filter cloth bag 5, and can effectively reduce the possibility that the filter cloth bag 5 is blocked and cannot permeate water.

Along with using, the wearing and tearing of piston 3 and 1 inner wall of cylinder body increase, can produce a small amount of foreign matter, and the surface of filter cloth bag 5 also can deposit certain incrustation scale, and the filth produces from this, if not in time clear up washes, will aggravate the wearing and tearing of 1 inner wall of cylinder body, still can influence the reverse osmosis of straining sack 5 simultaneously, and then influence the radiating effect of cylinder body 1. For this reason, regular flushing is needed, and when flushing, the flushing port 9 and the sewage draining port 10 are firstly opened; then, continuously introducing flushing liquid from the flushing port 9, and continuously flushing the inner wall of the cylinder body 1 and the outer surface of the filter cloth bag 5 by the flushing liquid under the action of the piston 3 and the filter cloth bag 5; finally, the washing liquid is continuously discharged from the sewage draining outlet 10 with the dirt.

The present invention is not limited to the above embodiments, and based on the technical solutions disclosed in the present invention, those skilled in the art can make some replacements and transformations for some technical features without creative labor according to the disclosed technical contents, and these replacements and transformations are all within the protection scope of the present invention.

Claims

1. A cylinder body assembly for a horizontal sludge plunger pump comprises a cylinder body (1), an end cover (2), a piston (3) and a piston rod (4); the method is characterized in that: the cylinder body component comprises a filter cloth bag (5) for isolating dirt and preventing the dirt from directly contacting with the inner wall of the cylinder body (1); the filter cloth bag (5) is positioned in the cylinder body (1), one end of the filter cloth bag is fixed on the piston (3), the other end of the filter cloth bag is fixed on the cylinder body (1) or the end cover (2), and the filter cloth bag can also stretch and move along the length direction of the cylinder body (1) and has certain water permeability.

2. The cylinder assembly for the horizontal sludge plunger pump according to claim 1, wherein: the filter cloth bag (5) is in a corrugated telescopic tube shape and comprises a cylindrical filter cloth body (5 a), a plurality of support rings (5 b) and elastic contraction rings (5 c), wherein the support rings (5 b) and the elastic contraction rings are arranged on the filter cloth body (5 a) and are uniformly distributed at intervals along the length direction of the filter cloth body; the support ring (5 b) is not elastically deformable, and the elastic contraction ring (5 c) is elastically deformable.

3. The cylinder assembly for the horizontal sludge plunger pump according to claim 1 or 2, wherein: the cylinder body assembly also comprises a bottom fixing mechanism for fixing the inner side end of the filter cloth bag (5), and the bottom fixing mechanism comprises

The pressing plate (7) is positioned inside the filtering cloth bag (5) and used for pressing the inner side end of the filtering cloth bag (5) on the piston (3);

the fixing bolts (8) are arranged, the fixing bolts (8) are arranged on the piston (3) in a centrosymmetric mode, and the pressing plates (7) are fixedly arranged on the piston (3) and further fix the inner side end of the filter cloth bag (5).

4. The cylinder assembly for the horizontal sludge plunger pump according to claim 1 or 2, wherein: a fixed clamping groove (1 a) is formed in an opening, close to one end of the end cover (2), of the cylinder body (1); the outer side end of the filter cloth bag (5) is provided with a fixing ring (6) matched with the fixing clamping groove (1 a).

5. The cylinder assembly for the horizontal sludge piston pump according to claim 1 or 2, wherein: the upper portion of the cylinder body (1) close to one end of the end cover (2) is provided with a flushing opening (9), the lower portion of the cylinder body is provided with a sewage draining exit (10), and detachable seal heads (11) are arranged on the flushing opening (9) and the sewage draining exit (10).