CN112594152B - Reciprocating type opposition valve hydraulic end stuff pump - Google Patents

Reciprocating type opposition valve hydraulic end stuff pump Download PDF

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Publication number
CN112594152B
CN112594152B CN202110233224.7A CN202110233224A CN112594152B CN 112594152 B CN112594152 B CN 112594152B CN 202110233224 A CN202110233224 A CN 202110233224A CN 112594152 B CN112594152 B CN 112594152B
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valve
main
feed liquor
plunger
installation position
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CN112594152A (en
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陈明海
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Ningbo Heli Machine Pump Co ltd
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Ningbo Heli Machine Pump Co ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B15/00—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts
    • F04B15/02—Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts the fluids being viscous or non-homogeneous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/10—Valves; Arrangement of valves
    • F04B53/1002—Ball valves
    • F04B53/1005—Ball valves being formed by two closure members working in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/14—Pistons, piston-rods or piston-rod connections
    • F04B53/143—Sealing provided on the piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/22—Arrangements for enabling ready assembly or disassembly

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

The invention discloses a reciprocating type opposed valve hydraulic end slurry pump which comprises a pump body (1), wherein a plurality of penetrating plunger passages (2) are horizontally arranged in the pump body (1), a packing sealing sleeve (3) and a plunger (4) are respectively arranged in the plunger passages (2), one end of each plunger passage (2) is connected with a front flange (5) in a sealing mode, the other end of each plunger passage is provided with a power end (6) connected with the plunger (4), the upper part and the lower part of each plunger passage (2) are respectively communicated with a stepped liquid drainage passage (7) and a liquid inlet passage (8), a main liquid inlet valve (81) and an auxiliary liquid inlet valve (82) are arranged in each liquid inlet passage (8), and a main liquid drainage valve (71) and an auxiliary liquid drainage valve (72) are arranged in each liquid drainage passage (7). The invention has the advantages of convenient disassembly and assembly, small on-site maintenance workload and high repeated assembly precision of the pump.

Description

Reciprocating type opposition valve hydraulic end stuff pump
Technical Field
The invention relates to a slurry pump, in particular to a reciprocating type opposed valve hydraulic end slurry pump.
Background
In the process flow of manufacturing washing powder in the detergent industry, a pump for conveying a washing powder stock solution medium with high viscosity is needed. Due to high viscosity and consistency of the medium, a reciprocating plunger pump with strong suction performance is required to be selected for conveying. The basic process for producing and manufacturing the washing powder is that the raw liquid of the washing powder is mixed, stirred and ball-milled into slurry through various chemical formulas, the slurry is ground and crushed by a crusher and then is directly sent to a reciprocating plunger pump for pressurization to be sent to a tower with the height of more than twenty meters, the slurry is sprayed into an atomized state through a ring tower nozzle on the top of the tower and is settled from the top of the tower to the bottom, the powder is dehydrated into blocks through electric heating drying, and the blocks are crushed, sieved, conveyed, bagged, packaged and warehoused. The reciprocating high-pressure plunger pump belongs to the heart equipment in the process of manufacturing washing powder, and the equipment has three cylinders or opposite six cylinders and is applied at home and abroad.
Through decades of applications, the problem of low efficiency generally occurs in the application and conveying process of the reciprocating plunger slurry pump, two liquid discharge ends of a double-ball valve stepped structure are generally adopted for improving the efficiency and preventing valve leakage, namely, two liquid discharge ends of one pump are selected, and when a plunger is sucked and discharged in a reciprocating mode, two valve cores are opened and closed simultaneously, so that leakage is prevented. The medium with high viscosity is not considered to use a return spring on the valve arrangement any more, because the spring can not work after being clamped by slurry, and the valve core is leaked, a double-channel ball valve is selected without being matched with a spring, the maintenance and the replacement of the parts of the hydraulic end of the reciprocating slurry pump with the structure are difficult in practical application, because the plunger is required to be replaced firstly, the plunger is required to be removed, because a stepped auxiliary pump body is arranged in front of a main pump body to block a plunger cavity, the plunger can be removed only after the auxiliary pump body is removed firstly, and the plunger is required to be replaced by operating from a power end machine body of the pump and being carried out from a motion cavity of the plunger, namely the plunger is required to be removed and then assembled after a box body is removed from the motion cavity of the plunger, because the box body is heavy and 100 kilograms and 300 kilograms, the disassembly and assembly processes of replacing parts on site are difficult, the workload is quite large, the efficiency is low, and the reinstallat, the casing often can cause the plunger to wear to generate heat after reinstallation for pump life after the repeated assembly is also not high.
Therefore, the existing reciprocating plunger slurry pump has the problems that the structure of a hydraulic end is complex and difficult to maintain, the workload is large in the disassembly and assembly process, the disassembly and assembly efficiency is low, the repeated assembly precision of the pump is low, and the service life of the pump after repeated assembly is not long.
Disclosure of Invention
The invention aims to provide a reciprocating type opposite valve hydraulic end slurry pump. The pump has the advantages of convenience in disassembly and assembly, small field maintenance workload and high repeated assembly precision of the pump.
The technical scheme of the invention is as follows: the utility model provides a reciprocating type opposition valve hydraulic end slurry pump, includes the pump body, the level is equipped with a plurality of plunger passageways that link up in the pump body, and is a plurality of all be equipped with packing seal cover and plunger in the plunger passageway, flange before plunger passageway one end sealing connection has, the other end is equipped with the power end of being connected with the plunger, the plunger passageway communicates respectively from top to bottom has flowing back passageway and the inlet channel that is the echelonment, be equipped with main feed liquor valve and vice feed liquor valve in the inlet channel, be equipped with main flowing back valve and vice flowing back valve in the flowing back passageway.
Compared with the prior art, the invention has the beneficial effects that: the invention is improved from the prior double-pump body assembly structure of the main pump body and the auxiliary pump body into the structure that a liquid inlet valve and a liquid outlet valve are arranged on a single pump body, the liquid inlet valve and the liquid outlet valve are both arranged at the upper position and the lower position of a plunger channel by adopting a double-valve structure, the double-ball valve structure is realized on the main pump body by subtracting the auxiliary pump body, and the liquid inlet valve and the liquid outlet valve of the double-ball valve complete liquid inlet and outlet from the side wall of the plunger channel. The invention can realize quick and convenient disassembly and assembly on site, only the front flange at one end of the plunger channel is required to be disassembled when the plunger is replaced and disassembled, the auxiliary pump body is not required to be disassembled, the total length of the invention is greatly shortened because the arrangement of the auxiliary pump body is saved, the box body (the packing sealing sleeve) is not required to be disassembled and replaced when the packing is replaced, the plunger can be disassembled and the packing can be replaced by directly disassembling the front flange end of the main pump body, the box body is not required to be re-assembled, the optimization of the box body is facilitated, the repeated assembly precision is improved, the plunger and the packing are ensured not to be worn away from each other, the service life is prolonged.
In the aforementioned reciprocating type opposition valve hydraulic end stuff pump, the packing seal cover install in the inner wall of plunger passageway, including the seal cover main part that has cylindrical hole, the one end of seal cover main part is located the outside of the pump body, and the other end is located the inside of the pump body, and the seal cover main part that is located the inside section of the pump body is fixed through the threaded connection of outer wall and the inner wall of the pump body, be equipped with preceding uide bushing, pack the V type and seal, pack after, uide bushing and sealed adjusting nut along the inside to the outside direction of the pump body on the inner wall of seal cover main part in proper order.
In the aforesaid reciprocating type opposition valve hydraulic pressure end stuff pump, the one end outside cover that the seal cover main part is located the pump body outside has the extra income to wash the ring, it washes the ring to pack the V type sealed and back to be equipped with the internal water between packing sealed, the inside annular water slotted hole that is equipped with of lateral wall of seal cover main part, the one end intercommunication extra income of annular water slotted hole washes the ring, and the other end intercommunication internal water washes the ring, it connects to be connected with a pair of water washing on the external water washing ring, be equipped with the water ring groove on the internal water washing ring, water ring groove, annular water slotted hole and a pair of the water washing joint cooperation forms a washing passageway by the inside and outside of the intercommunication pump body, and is a pair of the water washing joint includes a water supply.
In the reciprocating type opposition valve hydraulic end slurry pump, the outer wall of the seal sleeve main body is provided with the screw thread and the positioning step, and the screw thread is connected and fixed with the inner wall of the plunger channel.
In the aforementioned reciprocating type opposition valve hydraulic end slurry pump, be equipped with columniform main feed liquor valve installation position and vice feed liquor valve installation position in the inlet channel, main feed liquor valve installation position with vice feed liquor valve installation position is used for installing main feed liquor valve and vice feed liquor valve respectively, the feed liquor end of vice feed liquor valve is connected with the feed liquor manifold, the play liquid end of vice feed liquor valve and the feed liquor end level intercommunication of main feed liquor valve, the play liquid end intercommunication plunger passageway of main feed liquor valve.
In the aforementioned reciprocating type opposition valve hydraulic pressure end slurry pump, main feed liquor valve installation position with vice feed liquor valve installation position all link up the bottom surface of the pump body, main feed liquor valve installation position with the port department of vice feed liquor valve installation position all is equipped with the plug screw that is used for fixed main feed liquor valve and vice feed liquor valve.
In the reciprocating type opposed valve hydraulic end slurry pump, the main liquid inlet valve is located on the upper position of the auxiliary liquid inlet valve and comprises a valve seat, a liquid inlet hole is formed in the lower end of the valve seat, and two ends of the liquid inlet hole are respectively communicated with the liquid inlet end of the auxiliary liquid inlet valve and the liquid inlet manifold.
In the reciprocating type opposed valve hydraulic end slurry pump, a cylindrical main drainage valve installation position and an auxiliary drainage valve installation position are arranged in the drainage channel, the main drainage valve installation position and the auxiliary drainage valve installation position are respectively used for installing a main drainage valve and an auxiliary drainage valve, the liquid inlet end of the main drainage valve is communicated with the plunger channel, and the liquid outlet end of the main drainage valve is horizontally communicated with the liquid inlet end of the auxiliary drainage valve.
In the aforementioned reciprocating type opposition valve hydraulic pressure end slurry pump, main flowing back valve installation position with vice flowing back valve installation position all link up the top surface of the pump body, main flowing back valve installation position with the port department of vice flowing back valve installation position all is equipped with stopper and last flange.
In the aforementioned reciprocating opposed valve hydraulic end slurry pump, the length of the seal cartridge body located in the pump body inner section is 3/5 of its total length.
Drawings
FIG. 1 is a sectional view of the internal structure of the present invention;
FIG. 2 is a sectional view showing the internal structure of the pump body;
FIG. 3 is a schematic view of the packing gland;
FIG. 4 is a side view of the present invention;
FIG. 5 is a side view of the pump body;
FIG. 6 is a schematic structural view of a main drain valve;
FIG. 7 is a cross-sectional view taken along A-A of FIG. 6;
FIG. 8 is a sectional view showing the internal structure of the main liquid inlet valve;
FIG. 9 is a top view of the main intake valve;
FIG. 10 is a sectional view showing the internal structure of the secondary liquid inlet valve;
fig. 11 is a plan view of the secondary liquid inlet valve.
Reference numerals: 1-pump body, 2-plunger channel, 3-packing gland, 4-plunger, 5-front flange, 6-power end, 7-liquid discharge channel, 8-liquid feed channel, 9-liquid feed manifold, 31-gland body, 32-front guide sleeve, 33-packing V-shaped seal, 34-rear packing seal, 35-rear guide sleeve, 36-seal adjusting screw cap, 37-outer water flushing ring, 38-inner water flushing ring, 39-water flushing joint, 71-main liquid discharge valve, 72-auxiliary liquid discharge valve, 73-main liquid discharge valve mounting position, 74-auxiliary liquid discharge valve mounting position, 75-limiting block, 76-upper flange, 81-main valve, 82-auxiliary liquid feed valve, 83-main liquid feed valve mounting position, 84-liquid feed valve mounting position, 85-plug screw, 311-annular water groove hole, 381-water ring groove, 811-valve seat, 812-liquid inlet hole.
Detailed Description
The invention is further illustrated by the following figures and examples, which are not to be construed as limiting the invention.
Example (b): the utility model provides a reciprocating type opposition valve hydraulic end slurry pump, the structure is as shown in fig. 1 to 11, including the pump body 1, the level is equipped with three plunger passageway 2 that link up in the pump body 1, for three jar formula structure, all be equipped with packing seal cover 3 and plunger 4 in the three plunger passageway 2, plunger passageway 2 one end sealing connection has preceding flange 5, the other end is equipped with power end 6 connected with plunger 4, plunger passageway 2 upper and lower intercommunication has drainage channel 7 and the inlet channel 8 that is the echelonment respectively, the other end of drainage channel 7 is connected with the flowing back manifold, the other end of inlet channel 8 is connected with inlet manifold 9, be equipped with main feed liquor valve 81 and vice feed liquor valve 82 in the inlet channel 8, be equipped with main flowing back valve 71 and vice drain valve 72 in the drainage channel 7.
Preferably, a cylindrical main liquid inlet valve installation position 83 and an auxiliary liquid inlet valve installation position 84 are arranged in the liquid inlet channel 8, the main liquid inlet valve installation position 83 and the auxiliary liquid inlet valve installation position 84 are respectively used for installing a main liquid inlet valve 81 and an auxiliary liquid inlet valve 82, the liquid inlet end of the auxiliary liquid inlet valve 82 is communicated with the liquid inlet manifold 9, the liquid outlet end of the auxiliary liquid inlet valve 82 is horizontally communicated with the liquid inlet end of the main liquid inlet valve 81, and the liquid outlet end of the main liquid inlet valve 81 is communicated with the plunger channel 2, so that a group of double-valve suction and discharge structures are formed.
Preferably, the main liquid inlet valve installation position 83 and the auxiliary liquid inlet valve installation position 84 both penetrate through the bottom surface of the pump body 1, and screw plugs 85 for fixing the main liquid inlet valve 81 and the auxiliary liquid inlet valve 82 are respectively arranged at the ports of the main liquid inlet valve installation position 83 and the auxiliary liquid inlet valve installation position 84, so that the main liquid inlet valve 81 and the auxiliary liquid inlet valve 82 can be conveniently disassembled and assembled.
Preferably, the main liquid inlet valve 81 is located at the upper position of the auxiliary liquid inlet valve 82, the main liquid inlet valve 81 includes a valve seat 811, a liquid inlet hole 812 is provided at the lower end of the valve seat 811, and both ends of the liquid inlet hole 812 are respectively communicated with the liquid inlet end of the auxiliary liquid inlet valve 82 and the liquid inlet manifold 9.
Compared with the original structural design of the main pump body and the auxiliary pump body, the double-pump-body structure of the invention not only saves one auxiliary pump body, but also saves more materials of the main pump body and total processing time, concretely, as shown in fig. 2, the discharging part of the pump body 1, namely the part above the plunger channel 2, adopts the structure of the discharging part of the original double-pump-body structure of the main pump body and the auxiliary pump body, but the feeding part of the pump body 1, namely the part below the plunger channel 2, is a channel in a shape of Chinese character 'jing', the hollow degree of the whole interior of the pump body 1 is high, the space utilization rate is high, the materials are saved, the saved materials are equivalent to 1/3 of the total consumption of the original materials, the total weight of the pump body 1 is small, and the double-pump-body.
In addition, the part below the plunger channel 2 is a channel in a shape of Chinese character 'jing', the channel of the structure is very simple and convenient to process, only two times of hole processing are needed to be respectively carried out in the horizontal direction and the vertical direction of the pump body 1, the total working hour can be shortened to 1/2 of the total working hour of the original double-pump body structure of the main pump body and the auxiliary pump body, wherein the two times of hole processing in the vertical direction also form a main liquid inlet valve mounting position 83 and an auxiliary liquid inlet valve mounting position 84, the main liquid inlet valve mounting position 83 is provided with a liquid inlet hole 812 at the lower end of a valve seat 811 after the main liquid inlet valve 81 is mounted for communicating the auxiliary liquid inlet valve 82 with the liquid inlet manifold 9, and the space utilization rate in the pump body 1 is further improved.
The pump body 1 designed by the invention has the advantages of shortened total flow channel distance, reduced ineffective volume and higher suction performance and efficiency.
The front flange 5 is fixed on the pump body 1 by bolts, and the power end 6 is connected with the pump body 1 and fixed by bolts after being positioned by positioning sleeves on two sides.
The main drain valve 71 and the sub drain valve 72 have the same structure.
Preferably, the packing gland 3 is installed on the inner wall of the plunger channel 2 and comprises a gland body 31 with a cylindrical inner hole, one end of the gland body 31 is located outside the pump body 1, the other end of the gland body is located inside the pump body 1, the gland body 31 located in the inner section of the pump body 1 is fixedly connected with the inner wall of the pump body 1 through a screw thread on the outer wall, a front guide sleeve 32, a packing V-shaped seal 33, a rear packing seal 34, a rear guide sleeve 35 and a seal adjusting nut 36 are sequentially arranged on the inner wall of the gland body 31 along the direction from the inside of the pump body 1 to the outside of the pump body 1, the sealing performance is good, and the.
Preferably, the length of the section of the sealing sleeve main body 31 located inside the pump body 1 is 3/5 of the total length, compared with the original method of inserting the whole letter into the pump body, the partial insertion method of the invention can not only shorten the total length of the pump body 1 and further reduce the dead volume, but also has the advantages of better centering of the installation mode of the screw thread positioning connection, high installation precision, small alternating stress on the screw thread, difficult loosening and more convenient assembly and disassembly of each filler.
Preferably, an outer water flushing ring 37 is sleeved on the outer side of one end, positioned outside the pump body 1, of the seal sleeve main body 31, an inner water flushing ring 38 is arranged between the packing V-shaped seal 33 and the rear packing seal 34, an annular water groove hole 311 is arranged inside the side wall of the seal sleeve main body 31, one end of the annular water groove hole 311 is communicated with the outer water flushing ring 37, the other end of the annular water flushing ring 38 is communicated with the inner water flushing ring 38, a pair of water flushing joints 39 is connected onto the outer water flushing ring 37, a water ring groove 381 is arranged on the inner water flushing ring 38, the water ring groove 381 and the annular water groove hole 311 are matched with the pair of water flushing joints 39 to form a water flushing channel communicated with the inside and the outside of the pump body, washing powder slurry particle impurities on the surface of the plunger 4 can be washed through washing water of the washing channel, so that the service lives of the plunger 4 and the packing sealing sleeve 3 are prolonged.
Preferably, the outer wall of the seal sleeve main body 31 is provided with a screw thread and a positioning step and is fixedly connected with the inner wall of the plunger channel 2 through the screw thread, the front end face of the seal sleeve main body 31 is fixed on the plane of the step of the inner hole of the pump body 1, and the outer circle of the seal sleeve main body is provided with an O-shaped seal which is radially sealed by the inner hole of the pump body 1.
Preferably, a cylindrical main drain valve mounting position 73 and an auxiliary drain valve mounting position 74 are arranged in the drain passage 7, the main drain valve mounting position 73 and the auxiliary drain valve mounting position 74 are respectively used for mounting a main drain valve 71 and an auxiliary drain valve 72, the liquid inlet end of the main drain valve 71 is communicated with the plunger passage 2, and the liquid outlet end of the main drain valve 71 is horizontally communicated with the liquid inlet end of the auxiliary drain valve 72, so that a group of structures which are sucked and discharged by double valves are formed.
Preferably, the main drain valve mounting position 73 and the auxiliary drain valve mounting position 74 both penetrate through the top surface of the pump body 1, and the end openings of the main drain valve mounting position 73 and the auxiliary drain valve mounting position 74 are provided with a limiting block 75 and an upper flange 76, so that the main drain valve 71 and the auxiliary drain valve 72 can be conveniently detached.
The main drainage valve 71 and the auxiliary drainage valve 72 are arranged in a stepped drainage channel 7 at the upper position of the plunger channel 2, valve seats 811 of the main drainage valve 71 and the auxiliary drainage valve 72 are in an outer cone cylindrical type and are positioned in a main drainage valve mounting position 73 and an auxiliary drainage valve mounting position 74 in the inner cavity of the pump body 1 by virtue of conical surfaces, the valve core can be in a spherical shape or a conical shape, and the opening height of the valve core is limited by the valve core through a limiting block 75.
The main liquid discharge valve 71 is arranged at a position communicated with the plunger channel 2, the auxiliary liquid discharge valve 72 is arranged in the upper step liquid discharge channel 7 of the pump body 1, the main liquid discharge valve 71 and the auxiliary liquid discharge valve 72 are communicated, a valve seat 811 of the main liquid discharge valve 71 and the auxiliary liquid discharge valve 72 is integrally designed with a valve core guide sleeve, a circular groove type annular cylinder is arranged on the outer ring of the valve surface of the valve seat 811, a plurality of flow channel holes are arranged on the periphery of the ring, and an inner hole is matched with the valve core to form a valve group.
The working principle of the invention is as follows: the slurry medium is input into the liquid inlet manifold 9 through the rotary homogeneous grinder, along with the reciprocating operation of the plunger 4, the slurry medium enters the liquid inlet cavity of the auxiliary liquid inlet valve 82 from the liquid inlet manifold 9 through the liquid inlet channel 8 below the main liquid inlet valve 81, when the plunger 4 is pulled outwards, the main liquid inlet valve 81 and the auxiliary liquid inlet valve 82 are opened, and the slurry medium enters the plunger channel 2 through the auxiliary liquid inlet valve 82 and the main liquid inlet valve 81 in sequence. When the plunger 4 is pushed inwards, the main liquid inlet valve 81 and the auxiliary liquid inlet valve 82 are opened and closed, the pressure in the plunger channel 2 rises at the moment, the main liquid discharge valve 71 and the auxiliary liquid discharge valve 72 are opened, and slurry media sequentially pass through the main liquid discharge valve 71 and the auxiliary liquid discharge valve 72 in the liquid discharge channel 7, are discharged from a valve gap opened by a valve core of the auxiliary liquid discharge valve 72 and are finally discharged from a liquid discharge manifold of the liquid discharge channel 7. The suction and the discharge of the high-viscosity slurry medium are circularly carried out, the backflow and the medium conveying leakage are reduced, and the pump efficiency is improved.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned examples, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (10)

1. The utility model provides a reciprocating type opposition valve hydraulic end slurry pump which characterized in that: the plunger pump comprises a pump body (1), wherein a plurality of plunger passages (2) which are communicated are horizontally arranged in the pump body (1), a packing sealing sleeve (3) and a plunger (4) are arranged in each of the plunger passages (2), one end of each plunger passage (2) is connected with a front flange (5) in a sealing mode, the other end of each plunger passage is provided with a power end (6) connected with the plunger (4), the plunger passages (2) are respectively communicated with a stepped liquid drainage passage (7) and a liquid inlet passage (8) from top to bottom, a main liquid inlet valve (81) and an auxiliary liquid inlet valve (82) are arranged in each liquid inlet passage (8), and a main liquid drainage valve (71) and an auxiliary liquid drainage valve (72) are arranged in each liquid drainage passage;
liquid inlet channel (8) totality is the runner of a "well" font, the feed liquor end of vice feed liquor valve (82) is connected with feed liquor manifold (9), the play liquid end of vice feed liquor valve (82) and the feed liquor end level intercommunication of main feed liquor valve (81), main feed liquor valve (81) include disk seat (811), the lower extreme of disk seat (811) is equipped with feed liquor hole (812), the both ends of feed liquor hole (812) are linked together with feed liquor end, feed liquor manifold (9) of vice feed liquor valve (82) respectively.
2. A reciprocating opposed valve hydraulic end slurry pump as set forth in claim 1, wherein: packing seal cover (3) install in the inner wall of plunger passageway (2), including seal cover main part (31) that has cylindrical hole, the one end of seal cover main part (31) is located the outside of the pump body (1), and the other end is located the inside of the pump body (1), and seal cover main part (31) that are located the inside section of the pump body (1) are fixed through the interior wall connection of the screw thread of outer wall with the pump body (1), along the inside outside direction of the pump body (1) on the inner wall of seal cover main part (31) be equipped with preceding uide bushing (32), pack V type sealed (33), back packing sealed (34), back uide bushing (35) and sealed adjusting nut (36) in proper order.
3. A reciprocating opposed valve hydraulic end slurry pump as set forth in claim 2, wherein: an outer water flushing ring (37) is sleeved outside one end of the seal sleeve main body (31) positioned outside the pump body (1), an inner water flushing ring (38) is arranged between the packing V-shaped seal (33) and the rear packing seal (34), an annular water slot hole (311) is formed in the side wall of the seal sleeve main body (31), one end of the annular water slot hole (311) is communicated with an outer water flushing ring (37), the other end of the annular water slot hole is communicated with an inner water flushing ring (38), a pair of water flushing joints (39) is connected on the outer water flushing ring (37), be equipped with water ring groove (381) on interior water flushing ring (38), water ring groove (381), annular water groove hole (311) and a pair of water flushing joint (39) cooperation forms the inside and outside washing passageway of a intercommunication pump body (1), and is a pair of water flushing joint (39) include a water supply connector and a water connectors.
4. A reciprocating opposed valve hydraulic end slurry pump as claimed in claim 2 or 3, wherein: the outer wall of the seal sleeve main body (31) is provided with a screw thread and a positioning step, and is fixedly connected with the inner wall of the plunger channel (2) through the screw thread.
5. A reciprocating opposed valve hydraulic end slurry pump as claimed in claim 1, 2 or 3, wherein: be equipped with columniform main feed liquor valve installation position (83) and vice feed liquor valve installation position (84) in inlet channel (8), main feed liquor valve installation position (83) with vice feed liquor valve installation position (84) are used for installing main feed liquor valve (81) and vice feed liquor valve (82) respectively, the play liquid end intercommunication plunger passageway (2) of main feed liquor valve (81).
6. A reciprocating opposed valve hydraulic end slurry pump as set forth in claim 5, wherein: main feed liquor valve installation position (83) with vice feed liquor valve installation position (84) all link up the bottom surface of the pump body (1), main feed liquor valve installation position (83) with the port department of vice feed liquor valve installation position (84) all is equipped with plug screw (85) that are used for fixed main feed liquor valve (81) and vice feed liquor valve (82).
7. A reciprocating opposed valve hydraulic end slurry pump as set forth in claim 6, wherein: the main liquid inlet valve (81) is positioned at the upper position of the auxiliary liquid inlet valve (82).
8. A reciprocating opposed valve hydraulic end slurry pump as claimed in claim 1, 2 or 3, wherein: be equipped with columniform main flowing back valve installation position (73) and vice flowing back valve installation position (74) in flowing back passageway (7), main flowing back valve installation position (73) with vice flowing back valve installation position (74) are used for installing main flowing back valve (71) and vice flowing back valve (72) respectively, the inlet end intercommunication plunger passageway (2) of main flowing back valve (71), the liquid outlet end of main flowing back valve (71) and the inlet end level intercommunication of vice flowing back valve (72).
9. A reciprocating opposed valve hydraulic end slurry pump as set forth in claim 8, wherein: main flowing back valve installation position (73) with vice flowing back valve installation position (74) all link up the top surface of the pump body (1), main flowing back valve installation position (73) with the port department of vice flowing back valve installation position (74) all is equipped with stopper (75) and upper flange (76).
10. A reciprocating opposed valve hydraulic end slurry pump as set forth in claim 2, wherein: the length of the seal sleeve main body (31) located in the inner section of the pump body (1) is 3/5 of the total length.
CN202110233224.7A 2021-03-03 2021-03-03 Reciprocating type opposition valve hydraulic end stuff pump Active CN112594152B (en)

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US2263429A (en) * 1939-07-27 1941-11-18 Sheen Milton Roy Pump
GB862399A (en) * 1957-05-23 1961-03-08 Sigma Lutin Sealing means for preventing the ingress of air to the plunger space of a pump with a hydraulically plunger-controlled diaphragm
CN101070841A (en) * 2007-06-15 2007-11-14 江苏大学 High-pressure-resistant wear-resisting contact type reciprocation sealing with washing ring
CN202789495U (en) * 2012-07-10 2013-03-13 镇江长城注浆设备有限公司 Mortar pump double mortar suction and discharge ball valve tandem structure
CN207554282U (en) * 2017-12-05 2018-06-29 宁波合力机泵股份有限公司 A kind of detergent slurry delivery pump fluid end
CN108590999B (en) * 2018-03-31 2019-07-16 山东中探机械有限公司 A kind of Wear-resisting plunger slush pump
CN212616283U (en) * 2020-05-30 2021-02-26 上海大隆机器厂有限公司 External cooling type sealing box structure

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