CN113320960A

CN113320960A - Novel reciprocating type sleeve cylinder pump

Info

Publication number: CN113320960A
Application number: CN202110743283.9A
Authority: CN
Inventors: 孙启勇; 朱林林; 李桂荣; 赵作鑫; 汪程
Original assignee: Tai'an Sanli Environmental Scionce And Technology Co ltd
Current assignee: Tai'an Sanli Environmental Scionce And Technology Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2021-08-31
Anticipated expiration: 2040-03-25
Also published as: CN113320960B; CN111392397A

Abstract

The invention discloses a novel reciprocating type sleeve cylinder pump, and belongs to the field of sleeve cylinder pumps. A novel reciprocating type sleeve cylinder pump comprises a bottom plate, wherein a hopper is fixedly connected to the outer wall of the top of the bottom plate, and materials are filled in the hopper; the outer wall of the hopper is respectively connected with two conveying cylinder bodies through flange plates, the inner walls of the two conveying cylinder bodies are fixedly connected with plungers, the outer wall of each plunger is connected with a pushing piece in a sliding manner, and the outer wall of each pushing piece is connected with a sleeve cylinder body in a sliding manner; the outer wall of one end of the hopper, which is far away from the conveying cylinder body, is connected with two straight discharging pipes corresponding to the conveying cylinder body through a flange plate, one end of each straight discharging pipe, which is far away from the hopper, is connected with a three-way discharging pipe, and the hopper is provided with an arc groove corresponding to the sleeve cylinder body; the invention can realize the long-distance transportation of the bulk materials with poor suction and the oil sludge, has higher suction rate, improves the working efficiency and has low early investment cost.

Description

Novel reciprocating type sleeve cylinder pump

The application is a divisional application of an invention patent with a parent case name of 'a novel reciprocating type sleeve cylinder pump'; the parent application has the application number: cn202010218698. x; the application date of the parent application is as follows: 2020-03-25.

Technical Field

The invention relates to the technical field of a cylinder pump, in particular to a novel reciprocating type cylinder pump.

Background

At present, the reciprocating plunger pump is generally adopted for conveying paste materials (coal slime, sludge and gasified fine slag) in China, and the basic structure of the reciprocating plunger pump mainly comprises a pump body (a liquid cylinder), a piston (a plunger), a piston rod, a liquid suction valve and a liquid discharge valve (a one-way valve). Generally, two end points of the piston moving left and right in the pump cylinder are called dead points, and the distance between the two dead points is called a stroke (stroke); the space between the two valves of the piston is called the working chamber. When the piston normally works, the piston continuously reciprocates, the working chamber alternately (discontinuously) sucks liquid and discharges liquid, and energy is transferred to liquid in the form of static pressure energy through the piston. The liquid suction and discharge are changed by the space of the working chamber, so the reciprocating pump is a positive displacement pump. The high-pressure slurry conveying device has the advantages of high conveying pressure, stepless adjustment of conveying capacity, long-distance conveying and the like, is suitable for conveying slurry-presenting materials (such as coal water slurry, slurry and the like) with good suction and fluidity under high pressure, has a wide application range in the field of fluid conveying, and is mainly used for conveying slurry materials such as coal slime and the like in the coal industry.

However, for the bulk materials with poor suction performance, the bulk materials with poor flow performance cannot be sucked into the working chamber by using the equipment, and even if the bulk materials can be sucked into the working chamber, the suction rate is greatly reduced, so that the conveying efficiency of the whole pumping equipment is influenced to be also sharply reduced, and the conveying failure is caused. Therefore, the current solution is to add additional pre-treatment equipment (pre-stirring and water-adding mixing device) to process the pre-treatment equipment into transportable fluid to be pumped into the pipeline, and then to arrange a post-dehydration device at the outlet of the pipeline to process the fluid into a bulk material state before transportation, so that the investment cost of the pre-treatment equipment and the post-treatment equipment in the whole bulk material transportation link is overhigh.

Disclosure of Invention

The invention aims to solve the problems of low efficiency, short conveying distance and high conveying cost of a reciprocating plunger pump for conveying bulk materials with poor suction and paste materials with high viscosity in the prior art, and provides a novel reciprocating sleeve pump.

In order to achieve the purpose, the invention provides the following scheme:

a novel reciprocating type sleeve cylinder pump comprises a bottom plate, wherein a hopper is fixedly connected to the outer wall of the top of the bottom plate, and materials are filled in the hopper;

the outer wall of the hopper is respectively connected with two conveying cylinder bodies through flange plates, the inner walls of the two conveying cylinder bodies are fixedly connected with plungers, the outer wall of each plunger is connected with a pushing piece in a sliding mode, and the pushing pieces are connected to the inner walls of the conveying cylinder bodies in a sliding mode;

the outer wall of the pushing piece is connected with a cylinder sleeving body in a sliding mode, the cylinder sleeving body is connected to the inner wall of the conveying cylinder body in a sliding mode, and one end, far away from the conveying cylinder body, of the cylinder sleeving body penetrates through the conveying cylinder body and is connected into the hopper in a sliding mode;

the outer wall of one end of the hopper, which is far away from the conveying cylinder body, is connected with two straight discharging pipes corresponding to the conveying cylinder body through a flange plate, one end of each straight discharging pipe, which is far away from the hopper, is connected with a three-way discharging pipe, and an arc groove corresponding to the sleeve cylinder body is arranged on the hopper.

Preferably, the outer wall of the straight discharging pipe is connected with a switching valve, and the straight discharging pipe is fixedly connected with the three-way discharging pipe through a connecting flange.

Preferably, the outer wall of the pushing part is provided with a sealing gasket, the sealing gasket is connected to the outer wall of the plunger in a sliding mode, and the outer wall of one end, far away from the sealing gasket, of the pushing part is further connected with a pushing block through a bolt.

Preferably, the outer wall of the conveying cylinder body is further provided with a hydraulic oil port, and the outer walls of two ends of the conveying cylinder body are provided with connecting holes.

Preferably, the outer wall of the conveying cylinder body is further connected with connecting blocks through bolts, round holes are formed between the plungers, and through holes communicated with the round holes are formed in the connecting blocks.

Preferably, the top of the hopper is connected with a box cover through a bolt, the top of the box cover is connected with a feed port, and the top of the feed port is provided with a flange plate.

Preferably, the bottom outer wall of hopper is connected with the fixed plate, the outer wall of fixed plate and the outer wall of bottom plate all are equipped with the screw hole of mutually supporting, the outer wall of hopper still is equipped with perspective window.

Preferably, the outer wall of the top of the bottom plate is further connected with a supporting plate, and the supporting plate is abutted to the outer wall of the bottom of the conveying cylinder body.

Preferably, the side wall of the bottom plate is connected with an L-shaped rib plate through a bolt, and the outer wall of the bottom of the switching valve is abutted to the outer wall of the top of the L-shaped rib plate.

Preferably, a limiting plate is connected to the three-way discharging pipe, a fixing flange is arranged at one end, away from the straight discharging pipe, of the three-way discharging pipe, and a threaded sleeve is arranged on the outer wall of the fixing flange.

Compared with the prior art, the invention has the following technical effects:

1. the novel reciprocating type sleeve cylinder pump mainly comprises the following working processes: the sleeve cylinder body is charged firstly, then the pushing piece in the sleeve cylinder body advances to push the material in the sleeve cylinder body to move forwards, when the pushing piece on the plunger reaches the head, the sleeve cylinder body drives the pushing piece on the plunger to retreat to the head, at the moment, the sleeve cylinder body starts to advance again for charging to enter the next working cycle, the passive suction of materials in the former reciprocating pump, namely the high-pressure pump-out, becomes the active loading of materials in the pump, namely the high-pressure pump-out, thereby solving the problems of poor material, especially bulk material suction and low charging efficiency, the novel reciprocating type cylinder pump is suitable for conveying almost all forms of materials within the allowable range of the cylinder diameter, it can pump slurry, paste, bulk and block materials, and has the same advantages as reciprocating plunger pump, i.e. it can pump at high pressure and long distance, and is especially suitable for conveying bulk or block materials.

2. The novel reciprocating type cylinder sleeving pump is mainly used for conveying bulk materials, the materials are conveyed in a conveying cylinder body through the movement of a cylinder sleeving body and pushing pieces on a plunger in the cylinder sleeving body, the basic structure comprises parts such as a cylinder sleeving body for charging, a pushing piece for pushing materials, a hopper for storing the materials, a switching valve and the like, the cylinder sleeving body and the pushing pieces are assembled in the conveying cylinder body, and the charging of the cylinder sleeving body, the pushing of the pushing piece on the plunger, the retreating of the pushing pieces on the cylinder sleeving body and the plunger are sequentially performed by controlling oil paths of hydraulic oil ports at different positions in the conveying cylinder body; the conveying cylinder body is arranged on one side of the hopper, the hopper plays a role in material storage, and the arc-shaped groove at the bottom of the hopper is concentric with the diameter of the sleeve cylinder body in the conveying cylinder body and keeps a very small gap with the outer diameter of the sleeve cylinder body so as to prevent the sleeve cylinder body from having dead corners in material storage; the switching valve is arranged on the other side of the hopper and is used for periodically opening and closing the discharge ports of the two conveying cylinder bodies to ensure that the double cylinders alternately convey materials; the three-way discharging pipe is arranged on the two switching valves to combine the two discharging ports into one, and is connected with the straight discharging pipe.

The part not involved in the device is the same as the prior art or can be realized by the prior art, the invention can realize the long-distance transportation of the bulk materials and the oil sludge with poor suction performance, has higher suction rate, improves the working efficiency and has low early investment cost.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a front view of a novel reciprocating type sleeve cylinder pump provided by the invention;

FIG. 2 is a schematic top view of a reciprocating sleeve pump according to the present invention;

FIG. 3 is a schematic diagram I of the action sequence of a single delivery cylinder body of a novel reciprocating type sleeve cylinder pump provided by the invention;

FIG. 4 is a schematic diagram I of the action sequence of a single delivery cylinder body of a novel reciprocating type sleeve cylinder pump provided by the invention;

fig. 5 is a schematic diagram showing the action sequence of a single delivery cylinder of the novel reciprocating sleeve cylinder pump.

In the figure: 1. a base plate; 101. a support plate; 2. a hopper; 201. a perspective window; 202. a fixing plate; 203. a box cover; 204. a feed inlet; 3. a delivery cylinder; 301. a sleeve cylinder body; 302. a plunger; 303. a hydraulic oil port; 304. a pusher member; 305. a gasket; 306. connecting holes; 307. connecting blocks; 308. a through hole; 4. a discharge pipe is straightened; 401. a switching valve; 402. a connecting flange; 5. a three-way discharge pipe; 501. a fixed flange; 502. a limiting plate; 6. an L-shaped rib plate; 7. and (7) pushing the block.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Example (b):

referring to fig. 1-5, a novel reciprocating type jacketed cylinder pump comprises a bottom plate 1, wherein a hopper 2 is fixedly connected to the outer wall of the top of the bottom plate 1, the hopper 2 is a square box body, and materials are filled in the hopper 2;

the outer wall of the hopper 2 is respectively connected with two conveying cylinder bodies 3 through flanges, the inner walls of the two conveying cylinder bodies 3 are fixedly connected with plungers 302, the plungers 302 are of circular tube structures, the outer wall of the plungers 302 is connected with pushing pieces 304 in a sliding mode, and the pushing pieces 304 are connected to the inner walls of the conveying cylinder bodies 3 in a sliding mode;

the outer wall of the pushing piece 304 is connected with the inner wall of the cylinder sleeving body 301 in a sliding manner, the outer wall of the cylinder sleeving body 301 is connected with the inner wall of the conveying cylinder body 3 in a sliding manner, and one end (the left end in the drawing) of the cylinder sleeving body 301 far away from the conveying cylinder body 3 penetrates through the conveying cylinder body 3 and is connected in the hopper 2 in a sliding manner;

the outer wall of one end of the hopper 2, which is far away from the conveying cylinder body 3, is connected with two straight discharging pipes 4 corresponding to the conveying cylinder body 3 through a flange plate, one ends of the straight discharging pipes 4, which are far away from the hopper 2, are connected with a three-way discharging pipe 5, and the hopper 2 is provided with an arc groove corresponding to the sleeve cylinder body 301.

The outer wall of the straight discharging pipe 4 is connected with a switching valve 401, and the straight discharging pipe 4 is fixedly connected with the three-way discharging pipe 5 through a connecting flange 402.

The outer wall of the pushing piece 304 is provided with a sealing gasket 305, the sealing gasket 305 is connected to the outer wall of the plunger 302 in a sliding mode, the sealing gasket 305 can achieve the sealing effect between the plunger 302 and the pushing piece 304, the outer wall of one end, far away from the sealing gasket 305, of the pushing piece 304 is further connected with a pushing block 7 through a bolt, and the section of the pushing block 7 is matched with the section of the inner wall of the sleeve cylinder body 301.

The outer wall of the conveying cylinder 3 is also provided with a hydraulic oil port 303, and the outer walls of the two ends of the conveying cylinder 3 are provided with connecting holes 306 for connecting the supporting plate 101.

The outer wall of the conveying cylinder body 3 is further connected with connecting blocks 307 through bolts, round holes are formed between the plungers 302, and through holes 308 communicated with the round holes are formed in the connecting blocks 307 and used for meeting the requirement that the plungers 302 enter and exit oil.

The top of the hopper 2 is connected with a box cover 203 through bolts, the top of the box cover 203 is connected with a feed inlet 204, and the top of the feed inlet 204 is provided with a flange.

The bottom outer wall of hopper 2 is connected with fixed plate 202, and the outer wall of fixed plate 202 all is equipped with the screw hole of mutually supporting with the outer wall of bottom plate 1, and the outer wall of hopper 2 still is equipped with perspective window 201, makes things convenient for the staff just to observe the inside condition of hopper 2 from the outside.

The outer wall of the top of the bottom plate 1 is also connected with a supporting plate 101, the supporting plate 101 abuts against the outer wall of the bottom of the conveying cylinder body 3, and the supporting plate 101 can support the conveying cylinder body 3.

The side wall of the bottom plate 1 is connected with an L-shaped rib plate 6 through a bolt, and the outer wall of the bottom of the switching valve 401 is abutted to the outer wall of the top of the L-shaped rib plate 6; some support may be provided for the switching valve 401.

A limiting plate 502 is connected to the three-way discharge pipe 5, a fixing flange 501 is arranged at one end, away from the straight discharge pipe 4, of the three-way discharge pipe 5, and a threaded sleeve is arranged on the outer wall of the fixing flange 501.

The main working process of the novel reciprocating type sleeve cylinder pump is as follows: the cylinder body 301 is charged in the hopper 2, then the material in the cylinder body 301 is pushed forward by the pushing piece 304 in the cylinder body 301, when the pushing piece 304 on the plunger 302 reaches the head (at this time, the material is completely discharged), the cylinder body 301 drives the pushing piece 304 on the plunger 302 to retreat to the head, at this time, the cylinder body 301 starts to advance to charge and enter the next working cycle, the passive suction-high-pressure pumping-out of the material in the previous reciprocating pump becomes the active charging-high-pressure pumping-out of the material in the present pump, thereby solving the problems of poor suction and low charging efficiency of the material, especially the bulk material, the novel reciprocating cylinder pump is suitable for conveying almost all forms of materials within the range of the cylinder diameter, namely pumping the materials of slurry, paste, bulk, block and the like, and has the same advantages as the original reciprocating plunger pump, i.e. high pressure long distance pumping, and is especially suitable for conveying bulk or block material.

The novel reciprocating type cylinder sleeving pump is mainly used for conveying bulk materials, the materials are conveyed in a conveying cylinder body 3 through the movement of a cylinder sleeving body 301 and a pushing piece 304 on a plunger 302 in the cylinder sleeving body 301, the basic structure comprises parts such as a cylinder sleeving body 301 for charging, a pushing piece 304 for pushing, a hopper 2 for storing materials, a switching valve 401 and the like, the cylinder sleeving body 301 and the pushing piece 304 are assembled in the conveying cylinder body 3, and the charging of the cylinder sleeving body 301, the pushing of the pushing piece 304 on the plunger 302, the retreating of the pushing piece 304 on the cylinder sleeving body 301 and the plunger 302 are sequentially operated by controlling oil ways of hydraulic oil ports 303 at different positions in the conveying cylinder body 3; the conveying cylinder body 3 is arranged on one side of the hopper 2, the hopper 2 plays a role in material storage, and an arc groove at the bottom of the hopper 2 is concentric with the diameter of the sleeve cylinder body 301 in the conveying cylinder body 3 and keeps a small gap with the outer diameter of the sleeve cylinder body 301 so as to prevent the sleeve cylinder body 301 from having dead corners during material loading; the switching valve 401 is arranged on the other side of the hopper 2 and is used for periodically opening and closing the discharge ports of the two conveying cylinder bodies 3 to ensure that double cylinders alternately convey materials; the three-way discharging pipe 5 is arranged on the two switching valves 401 to combine two discharging ports into one, and is connected with the straight discharging pipe 4.

In the invention, in order to enable the sleeve cylinder and the plunger piston in the sleeve cylinder to act coordinately, the distribution of the driving force of the sleeve cylinder body 301 and the pushing piece 304 on the plunger piston 302 needs to be considered, the conception refers to a special hydraulic cylinder, namely a telescopic sleeve hydraulic cylinder, which is formed by sleeving two-stage piston cylinders, wherein the extending sequence of the piston in the telescopic cylinder is from big to small, the no-load retracting sequence is generally from small to big, and when the input flow is the same, the extending speed is gradually increased; when the load is constant, the working pressure of the hydraulic cylinder is gradually increased, and the hydraulic cylinder is mainly used for occasions with small installation space and long stroke requirements.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims

1. A novel reciprocating type sleeve cylinder pump comprises a bottom plate (1) and is characterized in that a hopper (2) is fixedly connected to the outer wall of the top of the bottom plate (1), and materials are filled in the hopper (2);

the outer wall of the hopper (2) is respectively connected with two conveying cylinder bodies (3) through flange plates, the inner walls of the two conveying cylinder bodies (3) are fixedly connected with plungers (302), the outer wall of each plunger (302) is connected with a pushing piece (304) in a sliding mode, and the pushing pieces (304) are connected to the inner walls of the conveying cylinder bodies (3) in a sliding mode;

the outer wall of the pushing piece (304) is connected with a cylinder sleeving body (301) in a sliding mode, the cylinder sleeving body (301) is connected to the inner wall of the conveying cylinder body (3) in a sliding mode, and one end, far away from the conveying cylinder body (3), of the cylinder sleeving body (301) penetrates through the conveying cylinder body (3) and is connected into the hopper (2) in a sliding mode;

the outer wall of one end, far away from the conveying cylinder body (3), of the hopper (2) is connected with two straight discharging pipes (4) corresponding to the conveying cylinder body (3) through a flange plate, one end, far away from the hopper (2), of each straight discharging pipe (4) is connected with a three-way discharging pipe (5), and an arc groove corresponding to the sleeve cylinder body (301) is formed in the hopper (2);

a sealing gasket (305) is arranged on the outer wall of the pushing member (304), the sealing gasket (305) is connected to the outer wall of the plunger (302) in a sliding mode, and the outer wall of one end, far away from the sealing gasket (305), of the pushing member (304) is further connected with a pushing block (7) through a bolt;

the outer wall of the conveying cylinder body (3) is also provided with a hydraulic oil port (303), and the outer walls of two ends of the conveying cylinder body (3) are provided with connecting holes (306);

the outer wall of the conveying cylinder body (3) is further connected with connecting blocks (307) through bolts, round holes are formed between the plungers (302), and through holes (308) communicated with the round holes are formed in the connecting blocks (307).

2. The novel reciprocating type telescopic cylinder pump as claimed in claim 1, characterized in that a switching valve (401) is connected to the outer wall of the straight discharging pipe (4), and the straight discharging pipe (4) is fixedly connected with the three-way discharging pipe (5) through a connecting flange (402).

3. The novel reciprocating type jacketed cylinder pump of claim 1, characterized in that the top of the hopper (2) is connected with a box cover (203) through bolts, the top of the box cover (203) is connected with a feed inlet (204), and the top of the feed inlet (204) is provided with a flange.

4. A novel reciprocating type telescopic cylinder pump according to claim 3, characterized in that the bottom outer wall of the hopper (2) is connected with a fixing plate (202), the outer wall of the fixing plate (202) and the outer wall of the bottom plate (1) are provided with screw holes which are matched with each other, and the outer wall of the hopper (2) is further provided with a perspective window (201).

5. The novel reciprocating type jacketed cylinder pump of claim 1, characterized in that the outer wall of the top of the bottom plate (1) is further connected with a support plate (101), and the support plate (101) is abutted with the outer wall of the bottom of the conveying cylinder (3).

6. The novel reciprocating type telescopic cylinder pump as claimed in claim 2, characterized in that the side wall of the bottom plate (1) is connected with an L-shaped rib plate (6) through a bolt, and the outer bottom wall of the switching valve (401) is abutted with the outer top wall of the L-shaped rib plate (6).

7. The novel reciprocating type telescopic cylinder pump as claimed in claim 1, characterized in that a limiting plate (502) is connected to the three-way discharging pipe (5), a fixing flange (501) is arranged at one end of the three-way discharging pipe (5) far away from the straight discharging pipe (4), and a threaded sleeve is arranged on the outer wall of the fixing flange (501).