CN114427520A - High-pressure liquid ammonia pump - Google Patents

Abstract

The application relates to the field of delivery pumps, in particular to a high-pressure liquid ammonia pump which comprises a driving motor, wherein the output shaft end of the driving motor is connected with a speed reducer, the output shaft end of the speed reducer is connected with a crankcase, one side of the crankcase is connected with a plurality of hydraulic pipes, pistons are arranged in the hydraulic pipes in a sliding mode, and the pistons are connected with a crankshaft in the crankcase through arranged piston rods; the tip that the crankcase was kept away from to the hydraulic pressure pipe is provided with the conveyer pipe of intercommunication, the both ends symmetry of conveyer pipe is provided with can dismantle the feed liquor check valve of connection and goes out the liquid check valve, the other one end of feed liquor check valve is connected with the feed liquor house steward, the other one end that goes out the liquid check valve is connected with out the liquid house steward, the inside dismantlement of conveyer pipe is provided with the separator, the separator falls into independent workspace with conveyer pipe and hydraulic pressure pipe. This application has the effect that prevents liquid ammonia pump inner structure and be corroded by chemical material.

Description

High-pressure liquid ammonia pump

Technical Field

The application relates to the field of delivery pumps, in particular to a high-pressure liquid ammonia pump.

Background

At present, liquid ammonia pumps are used for conveying and pressurizing liquid ammonia from an ammonia synthesis section, and conveying quantitative and qualified liquid ammonia to a urea synthesis tower. For example, the 3YA-53/22-T liquid ammonia pump is a horizontal three-cylinder single-action plunger reciprocating pump, and is mainly used for conveying high-pressure liquid ammonia medium in a urea process.

The existing liquid ammonia pump with the plunger structure has the problems that the main packing and the auxiliary packing are seven circles and three circles respectively, and the large friction is generated between the main guide sleeve and the plunger and between the auxiliary guide sleeve and the plunger in the operation process of the liquid ammonia pump due to the insufficient quantity of the packing, so that the surface of the plunger is damaged, and the cooling water of the packing leaks along the plunger; and when the existing liquid ammonia pump conveys a medium with certain corrosiveness, the conveyed medium is directly contacted with the plunger structure, and the long-time practical damage to equipment is easily caused.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: when corrosive substances are transported, expensive structural materials are required to be used inside the liquid ammonia pump to resist chemical attack of the transported fluid, which may result in an increase in the cost of the apparatus itself.

Disclosure of Invention

In order to prevent that liquid ammonia pump inner structure from being corroded by chemical material, this application provides a high-pressure liquid ammonia pump.

The application provides a high-pressure liquid ammonia pump adopts following technical scheme:

a high-pressure liquid ammonia pump comprises a driving motor, wherein an output shaft end of the driving motor is connected with a speed reducer, an output shaft end of the speed reducer is connected with a crankcase, one side of the crankcase is connected with a plurality of hydraulic pipes, a piston is arranged in each hydraulic pipe in a sliding mode, and the piston is connected with a crankshaft in the crankcase through a piston rod; the tip that the crankcase was kept away from to the hydraulic pressure pipe is provided with the conveyer pipe of intercommunication, the both ends symmetry of conveyer pipe is provided with can dismantle the feed liquor check valve of connection and goes out the liquid check valve, the other one end of feed liquor check valve is connected with the feed liquor house steward, the other one end that goes out the liquid check valve is connected with out the liquid house steward, the inside dismantlement of conveyer pipe is provided with the separator, the separator falls into independent workspace with conveyer pipe and hydraulic pressure pipe.

Through adopting above-mentioned technical scheme, the separator that this application set up can be two independent work areas with conveyer pipe and hydraulic pressure pipe isolation, when carrying the chemical material that has corrosivity, hydraulic pressure intraduct is full of hydraulic oil, and the inside transported substance that is used for of separator is used for, consequently, the separator can avoid chemical material to corrode the piston mechanism of hydraulic pressure intraduct to also prevent that hydraulic oil from entering into inside the separator.

Optionally, the separator is the outer hose that sets up in the conveyer pipe inside, the both ends of outer hose all are provided with the evagination limit of outside extension, two the laminating of both ends face of outer chimb and conveyer pipe, and be provided with the external seal ring between outer chimb and the conveyer pipe terminal surface, the external seal ring inlays and establishes at conveyer pipe tip, play liquid check valve and feed liquor check valve all compress tightly to the evagination on.

By adopting the technical scheme, the arranged outer hose can divide the conveyed substance and the internal structure of the liquid ammonia pump into two independent working areas, so that the damage to the internal structure of the liquid ammonia pump is avoided when the corrosive substance is conveyed, the material of the outer hose is relatively cheap, and after the outer hose is used for a period of time, in order to avoid the damage of the outer hose, a worker can replace the outer hose; the outer seal ring that sets up can prevent that hydraulic oil from flowing out between the both ends face of evagination limit and conveyer pipe, and the outer seal ring can be with the tight fixing at conveyer pipe both ends of evagination limit in addition, prevents that the outer chimb from deviating from conveyer pipe both ends when the outer hose is out of shape.

Optionally, an inner hose is arranged inside the outer hose, two ends of the inner hose extend out of two ends of the outer hose, the inner hose and the outer hose are attached to each other, two ends of the inner hose are both connected with inward flanges extending outwards, first flange seats are compressed on the two inward flanges, the liquid inlet check valve and the liquid outlet check valve are correspondingly connected to the first flange seats at two ends of the inner hose, inner sealing rings are arranged between the two inward flanges and the two first flange seats, and the inner sealing rings are embedded in end faces of the first flange seats.

By adopting the technical scheme, the arranged inner hose plays a role in double-layer protection, when the outer hose is damaged, the inner hose can be continuously used, the equipment cannot stop running, the conveying efficiency is improved, and after the liquid ammonia conveying work is finished, workers replace the damaged outer hose, so that the shutdown frequency of the equipment is reduced; the inner sealing ring who sets up, on the one hand can prevent that the material of carrying from spilling between interior flange and the first flange seat, and on the other hand, inner sealing ring can be with interior flange firmly fix on first flange seat, prevents that the hose from being in the transported substance deformation process, and interior flange is deviate from first flange seat, plays stable fixed effect.

Optionally, a plurality of reinforcing strips are fixed on the inner wall of the inner hose.

Through adopting above-mentioned technical scheme, the reinforcement strip that sets up can increase the deformation strength of inner hose, when avoiding warping too big, inner hose appears breaking to cause the outflow of liquid ammonia.

Optionally, the joint of the outer hose and the outer convex edge and the joint of the inner hose and the inner convex edge are both fixed with a reinforcing ring.

Through adopting above-mentioned technical scheme, the beaded finish that sets up can prevent to appear the condition of tearing between interior hose and the interior flange and between outer hose and the evagination, has increased the intensity of connecting.

Optionally, the inner wall of the conveying pipe is in an inwards concave arc shape.

Through adopting above-mentioned technical scheme, the inner wall of conveyer pipe sets to the arc of indent, makes interior hose and outer hose inflation and deformation once-through in-process, can carry more liquid ammonia material.

Optionally, the liquid inlet check valve and the liquid outlet check valve are both floating ball type check valves, and ball sealing rings matched with the floating balls are fixed inside the liquid inlet check valve and the liquid outlet check valve.

Through adopting above-mentioned technical scheme, the ball sealing ring that sets up can with the inseparabler laminating of floater, when carrying the liquid ammonia material, prevent that the floater from receiving the erosion back, lead to the feed liquor check valve and go out the liquid check valve and can not close, simultaneously, also prevent that the floater from receiving the erosion back, the liquid ammonia material flows back from feed liquor check valve or play liquid check valve to the efficiency of carrying liquid ammonia has been improved.

Optionally, a first compression ring and a second compression ring are symmetrically arranged at two ends of the conveying pipe, the first compression ring is arranged at the end portion, close to the liquid outlet one-way valve, of the conveying pipe, the first compression ring is located between the outer convex edge and the inner convex edge, the second compression ring is arranged at the end portion, close to the liquid inlet one-way valve, of the conveying pipe, the second compression ring is also located between the outer convex edge and the inner convex edge, the two first flange seats are correspondingly compressed onto the first compression ring and the second compression ring, the first compression ring is of a hollow structure, an opening is formed in the surface facing the inside, a pressure sensor communicated with the inside is fixed on the first compression ring, a detection pipe communicated with the inside is fixed on the first compression ring, and a valve is connected to the detection pipe.

Through adopting above-mentioned technical scheme, the first clamp ring and the second clamp ring that set up can be fixed hose and outer hose inside to when inner hose or outer hose burst, pressure sensor can detect the signal, and the suggestion staff notices, and the sense tube and the valve of setting can let the staff directly judge that outer hose breaks or inner hose breaks.

It is optional, the feed liquor check valve keeps away from the tip of first flange seat and goes out the tip that first flange seat was kept away from to the feed liquor check valve and all is provided with second flange seat, two second flange seat and corresponding feed liquor house steward with go out the liquid house steward and be connected, the feed liquor check valve or go out the liquid check valve and can dismantle the setting between first flange seat and second flange seat, and between first flange seat and the second flange seat and circumference distribute there are many lead screws, the both ends of lead screw can be dismantled with first flange seat and second flange seat and be connected to the inflatable seal ring is all installed at the both ends of feed liquor check valve and the both ends of going out the liquid check valve.

Through adopting above-mentioned technical scheme, the second flange seat that sets up can make the feed liquor check valve conveniently change with play liquid check valve, and when changing, several top lead screws wherein are dismantled to the staff, make the removable space of the department of stepping down between first flange seat and the second flange seat to the sealing ring gassing will aerify, thereby make taking off that the feed liquor check valve or play liquid check valve can be smooth, and quick replacement is new.

Optionally, the liquid inlet check valve and the liquid outlet check valve are both fixed with solid acoustic sensors.

Through adopting above-mentioned technical scheme, the solid acoustic sensor who sets up can carry out intelligence and reliable state to feed liquor check valve or play liquid check valve and detect, avoids feed liquor check valve and play liquid check valve to take place the problem in the work.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the inner hose and the outer hose are sleeved with each other, the conveying pipe and the hydraulic pipe can be isolated to form two independent working areas, the two independent working areas can be used for conveying fluid with unstable chemical properties, when harmful and corrosive materials are conveyed, the materials can be completely isolated from the outside by the diaphragm pump, in addition, when the corrosive chemical materials are conveyed, hydraulic oil is filled in the hydraulic pipe, the inner hose is internally used for conveying the materials, and the conveying of liquid ammonia materials is realized through the expansion deformation and the contraction resetting of the inner hose and the outer hose, so the inner hose and the outer hose can avoid the chemical materials from corroding a piston mechanism in the hydraulic pipe, and the hydraulic oil is also prevented from entering the isolating piece;

2. the double hoses are high-flow and high-lift equipment, and moving parts and conveyed materials are separated by the diaphragms, so that the double hoses are small in abrasion, long in continuous operation time, capable of reducing the maintenance rate and the maintenance cost, resistant to corrosion and high temperature, provided with a perfect automatic control system, simple and convenient to operate, meticulous monitoring systems and capable of displaying the operation state of the equipment in real time;

3. the inner hose and the outer hose can be fixed by the aid of the arranged first compression ring and the arranged second compression ring, when the inner hose or the outer hose is broken, the pressure sensor can detect signals to prompt workers to pay attention, and the arranged detection pipe and the valve can enable the workers to directly judge whether the outer hose is broken or the inner hose is broken through outflow substances;

4. the first flange seat and the second flange seat that set up can make the feed liquor check valve with go out the liquid check valve and conveniently change, when changing, several top lead screws wherein are dismantled to the staff, make the removable space of the department of stepping down between first flange seat and the second flange seat to the inflatable seal ring gassing, thereby make taking off that the feed liquor check valve or play liquid check valve can be smooth, and quick replacement is new.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present application;

FIG. 2 is a schematic diagram of a delivery tube structure embodying the present application;

FIG. 3 is a cross-sectional view of the present application embodying the internal structure of the delivery tube;

FIG. 4 is an enlarged schematic view at A in FIG. 3;

fig. 5 is an enlarged schematic view at B in fig. 3.

Description of reference numerals: 1. a drive motor; 2. a speed reducer; 3. a crankcase; 4. a hydraulic tube; 5. a delivery pipe; 6. a liquid outlet one-way valve; 7. a liquid inlet check valve; 8. a first clamp ring; 9. a second clamp ring; 10. a first flange seat; 11. a second flange seat; 12. a liquid outlet main pipe; 13. a liquid inlet header pipe; 14. an outer hose; 15. an inner hose; 16. an outer flange; 17. an inner convex edge; 18. a reinforcement ring; 19. a reinforcing strip; 20. a pressure sensor; 21. an outer seal ring; 22. an inner seal ring; 24. a jacking rod; 25. an inflatable sealing ring; 26. a solid acoustic sensor; 27. a pressure buffer tank; 28. a pulsation damper.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

The embodiment of the application discloses a high-pressure liquid ammonia pump. Referring to fig. 1 and 2, a high-pressure liquid ammonia pump comprises a driving motor 1, a speed reducer 2 and a crankcase 3, which are connected in sequence, an output shaft of the driving motor 1 is connected with an input shaft of the speed reducer 2, an output shaft of the speed reducer 2 is connected with an input shaft of the crankcase 3, a plurality of hydraulic pipes 4 are horizontally and fixedly connected with the side surface of the crankcase 3, one end of each hydraulic pipe 4 is communicated with the inside of the crankcase 3, the other end of each hydraulic pipe 4 is vertically and fixedly connected with a conveying pipe 5, a pipe orifice of each hydraulic pipe 4 is fixed with the middle position of the conveying pipe 5, the upper end of the conveying pipe 5 is connected with a liquid outlet one-way valve 6, the lower end of the conveying pipe 5 is connected with a liquid inlet one-way valve 7, a piston is arranged in each hydraulic pipe 4 in a sliding manner and is rotatably connected with a crankshaft in the crankcase 3 through a piston rod, when the high-pressure liquid ammonia pump works, the driving motor 1 is under the action of the speed reducer 2, can drive 3 inside crankshafts of crankcase and rotate to make the piston slide in hydraulic pressure pipe 4 is inside, the piston is at the horizontal slip in-process, and liquid ammonia can be controlled to feed liquor check valve 7 and the liquid outlet check valve 6 can control liquid ammonia and outwards export in the transport end, thereby makes liquid ammonia can be by the transport that lasts in entering into conveyer pipe 5.

Referring to fig. 2, 4 and 5, a first clamp ring 8 is disposed on the upper end surface of a conveying pipe 5, a second clamp ring 9 is disposed on the lower end surface of the conveying pipe 5, a pair of first flange seats 10 and a pair of second flange seats 11 are symmetrically disposed on both ends of the conveying pipe 5, the first flange seats 10 are correspondingly pressed on the first clamp ring 8 and the second clamp ring 9, the first flange seats 10 are screwed on both ends of the conveying pipe 5 through bolts, a liquid inlet check valve 7 is mounted on the first flange seat 10 at the lower end of the conveying pipe 5, a liquid outlet check valve 6 is mounted on the first flange seat 10 at the upper end of the conveying pipe 5, the second flange seats 11 are correspondingly mounted on the liquid outlet check valve 6 and the liquid inlet check valve 7, a liquid outlet header pipe 12 is connected to the second flange seats 11 at the upper end of the conveying pipe 5, a liquid inlet header pipe 13 is connected to the second flange seats 11 at the lower end of the conveying pipe 5, when pumping liquid ammonia, the transported liquid ammonia passes through the liquid inlet header pipe 13 once, is shunted to the plurality of transporting pipes 5 through the liquid inlet header pipe 13, then is gathered to the liquid outlet header pipe 12, and finally is transported to other places.

The detachably connected partition is arranged in the conveying pipe 5, and the arranged partition can separate pumped substances from the internal structure of the liquid ammonia pump, so that the phenomenon that the chemical substances corrode the internal structure of the liquid ammonia pump when conveying the chemical substances with certain corrosiveness is avoided, and the internal part of the liquid ammonia pump is damaged; the partition comprises an outer hose 14 and an inner hose 15 which are sleeved with each other, the outer hose 14 and the inner hose 15 are attached to each other, two ends of the inner hose 15 extend out of two ends of the outer hose 14, the outer hose 14 and the inner hose 15 both have certain elasticity, the arranged outer hose 14 can divide conveyed substances and the internal structure of the liquid ammonia pump into two independent working areas, damage to the internal structure of the liquid ammonia pump when corrosive substances are conveyed is avoided, the material of the outer hose 14 is relatively cheap, and after the outer hose 14 is used for one end, in order to avoid the situation that the outer hose 14 is damaged, workers can replace the outer hose in time; the arranged inner hose 15 plays a role in double-layer protection, and when the outer hose 14 is damaged, the inner hose 15 can be continuously used, so that the equipment cannot stop running; outer convex edges 16 extending horizontally outwards are fixedly connected to two ends of an outer hose 14, inner convex edges 17 extending horizontally outwards are fixedly connected to two ends of an inner hose 15, a first compression ring 8 and a second compression ring 9 are located between the outer convex edges 16 and the inner convex edges 17, the two outer convex edges 16 are attached to two end faces of a conveying pipe 5, the first compression ring 8 and the second compression ring 9 can be compressed onto the outer convex edges 16, the inner convex edges 17 are compressed onto the first compression ring 8 through a first flange seat 10 at the upper end of the conveying pipe 5, the inner convex edges 17 are compressed onto the second compression ring 9 through a first flange seat 10 at the lower end of the conveying pipe 5, the two first flange seats 10 are connected with two ends of the conveying pipe 5 through bolts, when materials are pumped, hydraulic oil is filled in a hydraulic pipe 4, in the process of horizontal movement of a piston, the hydraulic oil is filled between the conveying pipe 5 and the outer hose 14, and the outer hose 14 and the inner hose 15 are deformed, and the outer hose 14 and the inner hose 15 complete the process of one-time material conveying in the process of deformation and restoration.

Referring to fig. 2, 4 and 5, further, annular reinforcing rings 18 are fixedly connected to the joints between the two outer flanges 16 and the outer hose 14 and the joints between the two inner flanges 17 and the inner hose 15, and the cross sections of the reinforcing rings 18 are triangular, so that the pistons expand and deform the inner hose 15 and the outer hose 14 during the liquid ammonia delivery process, thereby sucking the liquid ammonia into the inner hose 15, and when the inner hose 15 and the outer hose 14 expand and deform, the reinforcing rings 18 are arranged to prevent the inner hose 15 and the inner flange 17 and the outer hose 14 and the outer flange 16 from being torn, thereby increasing the connection strength; the inner wall of the conveying pipe 5 is in a concave arc shape so as to adapt to the maximum expansion deformation of the inner hose 15 and the outer hose 14, and more liquid ammonia can be conveyed in one-time expansion deformation of the inner hose 15 and the outer hose 14; the many reinforcing strips 19 of fixedly connected with on the inner tube wall of inner hose 15, the length direction of reinforcing strip 19 is the same with the length direction of inner hose 15 to many reinforcing strips 19 are along inner hose 15's circumference evenly distributed, and inner hose 15 is at the in-process that pump sending liquid ammonia warp, and the reinforcing strip 19 of setting can increase inner hose 15's deformation strength, avoids warping when too big, and inner hose 15 appears breaking, thereby causes the outflow of liquid ammonia.

The first clamp ring 8 is of a hollow structure, an opening is formed in the inner surface of the first clamp ring 8, a pressure sensor 20 is fixedly connected to the outer surface of the first clamp ring 8, a detection pipe communicated with the inside is fixed to the first clamp ring 8, a valve is connected to the detection pipe, when the inner hose 15 or the outer hose 14 is broken, conveyed materials or hydraulic oil can flow into the first clamp ring 8 through the space between the inner hose 15 and the outer hose 14, and then the pressure sensor 20 detects a pressure signal, so that a worker can notice that the worker can open the valve to discharge the materials in the first clamp ring 8, and the breakage of the inner hose 15 or the outer hose 14 can be detected.

Referring to fig. 2, 4 and 5, a pair of outer sealing rings 21 are symmetrically arranged between two outer flanges 16 and two end faces of the conveying pipe 5, the outer sealing rings 21 are fixedly connected with the outer flanges 16, and outer sealing grooves are arranged on the two end faces of the conveying pipe 5, the two outer sealing rings 21 and the two outer sealing grooves are matched with each other, when materials are conveyed, the matched outer sealing rings 21 and the matched outer sealing grooves can prevent hydraulic oil from flowing out from the outer flanges 16 and the two end faces of the conveying pipe 5, in addition, the outer sealing rings 21 clamped and arranged in the outer sealing grooves can tightly fix the outer flanges 16 at the two ends of the conveying pipe 5, and the outer flanges 16 are prevented from falling off from the two ends of the conveying pipe 5 when the outer hose 14 is deformed; be provided with interior sealing ring 22 between chimb 17 and two first flange seats 10 in two, interior sealing ring 22 and interior chimb 17 fixed connection, and all seted up interior seal groove on two first flange seats 10 towards interior chimb 17 on the surface, in the seal groove including the cooperation of interior sealing ring 22 joint, the interior sealing ring 22 of setting, on the one hand can prevent to leak between interior chimb 17 and the first flange seat 10 the material of carrying, on the other hand, interior sealing ring 22 can be with interior chimb 17 firmly fix on first flange seat 10, prevent that interior hose 15 is at the transported substance deformation in-process, interior chimb 17 is deviate from on first flange seat 10, play stable fixed effect.

The liquid outlet one-way valve 6 and the liquid inlet one-way valve 7 are both floating ball type one-way valves, the liquid outlet one-way valve 6 and the liquid inlet one-way valve 7 are both fixedly connected with annular ball sealing rings which are tightly matched with floating balls, when the floating ball closes the liquid outlet one-way valve 6 or the liquid inlet one-way valve 7, the floating ball can be tightly propped against the ball sealing ring to prevent the materials from flowing back from the liquid inlet one-way valve 7 or the liquid outlet one-way valve 6, when the materials are sucked into the inner hose 15, the inner hose 15 and the outer hose 14 are expanded and deformed, the liquid inlet check valve 7 is opened, the liquid outlet check valve 6 is closed, when the materials are discharged out of the inner hose 15, the inner hose 15 and the outer hose 14 are contracted and reset, the liquid inlet one-way valve 7 is closed, the liquid outlet one-way valve 6 is opened, so that the materials in the inner hose 15 are conveyed into the liquid outlet main pipe 12, thereby accomplishing the transport of a material, under the effect of crankcase 3, the material that makes the inside transport pipe 5 can be lastingly carried.

Referring to fig. 2, 4 and 5, the liquid inlet check valve 7 and the liquid outlet check valve 6 are respectively detachably and fixedly connected with a first flange seat 10 and a second flange seat 11, a plurality of top screws 24 are vertically arranged between the first flange seat 10 and the second flange seat 11 at two ends of the liquid inlet check valve 7 and between the first flange seat 10 and the second flange seat 11 at two ends of the liquid outlet check valve 6, the plurality of top screws 24 are circumferentially distributed outside the liquid inlet check valve 7 or the liquid outlet check valve 6, the lower end of each top screw 24 is in threaded fit with the first flange seat 10, the upper end of each top screw 24 is fixedly connected with the second flange seat 11 through a pair of nuts, the peripheral surface of the second flange seat 11 is provided with a plurality of mounting ports matched with the top screws 24, the upper side and the lower side of the mounting ports which are symmetrically arranged by the two nuts, after the liquid inlet check valve 7 and the liquid outlet check valve 6 are in indirect contact with conveyed chemical materials, the sealing effect of the liquid inlet one-way valve 7 and the liquid outlet one-way valve 6 is reduced, so that the liquid inlet one-way valve 7 and the liquid outlet one-way valve 6 which are arranged between the first flange seat 10 and the second flange seat 11 can be disassembled, the liquid inlet one-way valve 7 and the liquid outlet one-way valve 6 can be conveniently replaced by workers, when the liquid inlet one-way valve 7 and the liquid outlet one-way valve 6 are replaced, the workers unscrew the nuts at the upper end of the jacking screw rod 24, remove a plurality of jacking screw rods 24 on the periphery of the liquid inlet one-way valve 7 or the liquid outlet one-way valve 6, and reserve the positions for taking out the liquid inlet one-way valve 7 or the liquid outlet one-way valve 6, so that the purpose of convenient replacement is achieved; both ends at feed liquor check valve 7 and go out liquid check valve 6's both ends and all be provided with inflatable seal ring 25, when feed liquor check valve 7 and play liquid check valve 6 install between first flange seat 10 and second flange seat 11, inflatable seal ring 25 that sets up can seal feed liquor check valve 7 or go out the both ends of liquid check valve 6, prevent the leakage of material, when needs change feed liquor check valve 7 or go out liquid check valve 6, will inflate sealing ring 25 gassing, can make feed liquor check valve 7 or go out liquid check valve 6 take off from first flange seat 10 and second flange seat 11 more easily.

The solid sound-sensitive sensors 26 are fixedly connected to the outer walls of the liquid inlet one-way valve 7 and the liquid outlet one-way valve 6, the liquid inlet one-way valve 7 or the liquid outlet one-way valve 6 can be intelligently and reliably detected through the solid sound-sensitive sensors 26, and the liquid inlet one-way valve 7 and the liquid outlet one-way valve 6 are prevented from being in trouble in working. Be connected with pressure buffer tank 27 on inlet main 13 to be connected with pulsation damper 28 on liquid outlet main 12, when carrying the material that has certain pressure, pressure buffer tank 27 and pulsation damper 28 can guarantee that inlet main 13 and liquid outlet main 12 are inside to maintain steady and invariable flow, also avoid simultaneously that inlet main 13 is inside when flowing pressure is too big, cause the impact to conveyer pipe 5 inside, make interior hose 15 and outer hose 14 take place to break easily.

The implementation principle of the high-pressure liquid ammonia pump in the embodiment of the application is as follows: when materials are conveyed, the driving motor 1 drives the crankshaft inside the crank case 3 to rotate, so that the piston slides in the hydraulic pipe 4 in a reciprocating mode, the outer hose 14 and the inner hose 15 expand, deform and contract to reset in the sliding process of the piston, the dynamic process of material suction and release can be completed inside the conveying pipe 5, and finally the materials inside the liquid inlet main pipe 13 can be continuously conveyed into the liquid outlet main pipe 12.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. A high-pressure liquid ammonia pump, characterized in that: the hydraulic cylinder driving device comprises a driving motor (1), wherein an output shaft end of the driving motor (1) is connected with a speed reducer (2), an output shaft end of the speed reducer (2) is connected with a crankcase (3), one side of the crankcase (3) is connected with a plurality of hydraulic pipes (4), a piston is arranged in each hydraulic pipe (4) in a sliding mode, and the piston is connected with a crankshaft in the crankcase (3) through a set piston rod; the tip that crankcase (3) was kept away from in hydraulic pressure pipe (4) is provided with conveyer pipe (5) of intercommunication, the both ends symmetry of conveyer pipe (5) is provided with can dismantle feed liquor check valve (7) of connection and goes out liquid check valve (6), the other one end of feed liquor check valve (7) is connected with feed liquor house steward (13), the other one end of going out liquid check valve (6) is connected with out liquid house steward (12), conveyer pipe (5) inside can be dismantled and be provided with the separator, the separator falls into independent workspace with conveyer pipe (5) and hydraulic pressure pipe (4).

2. The high-pressure liquid ammonia pump according to claim 1, wherein: the separator is for setting up outer hose (14) in conveyer pipe (5) inside, the both ends of outer hose (14) all are provided with outside outer chimb (16) of extending, two the laminating of both ends face of outer chimb (16) and conveyer pipe (5), and be provided with external seal ring (21) between outer chimb (16) and conveyer pipe (5) terminal surface, external seal ring (21) are inlayed and are established at conveyer pipe (5) tip, play liquid check valve (6) and feed liquor check valve (7) all compress tightly on evagination limit (16).

3. The high-pressure liquid ammonia pump according to claim 2, wherein: the inner hose (15) is arranged inside the outer hose (14), two ends of the inner hose (15) extend out of two ends of the outer hose (14), the inner hose (15) is attached to the outer hose (14), two ends of the inner hose (15) are connected with inward flanges (17) extending outwards, first flange seats (10) are tightly pressed on the two inward flanges (17), the liquid inlet one-way valve (7) and the liquid outlet one-way valve (6) are correspondingly connected to the first flange seats (10) at two ends of the inner hose (15), inner sealing rings (22) are arranged between the two inward flanges (17) and the two first flange seats (10), and the inner sealing rings (22) are embedded on end faces of the first flange seats (10).

4. A high-pressure liquid ammonia pump according to claim 3, wherein: a plurality of reinforcing strips (19) are fixed on the inner wall of the inner hose (15).

5. The high-pressure liquid ammonia pump according to claim 2, wherein: and reinforcing rings (18) are fixed at the joint of the outer hose (14) and the outer flange (16) and the joint of the inner hose (15) and the inner flange (17).

6. The high-pressure liquid ammonia pump according to claim 1, wherein: the inner wall of the conveying pipe (5) is in an inwards concave arc shape.

7. The high-pressure liquid ammonia pump according to claim 1, wherein: the liquid inlet check valve (7) and the liquid outlet check valve (6) are both floating ball type check valves, and ball sealing rings matched with floating balls are fixed inside the liquid inlet check valve (7) and the liquid outlet check valve (6).

8. The high-pressure liquid ammonia pump according to claim 1, wherein: the two ends of the conveying pipe (5) are symmetrically provided with a first compression ring (8) and a second compression ring (9), the first compression ring (8) is arranged at the end part of the conveying pipe (5) close to the liquid outlet one-way valve (6), the first compression ring (8) is positioned between an outer convex edge (16) and an inner convex edge (17), the second compression ring (9) is arranged at the end part of the conveying pipe (5) close to the liquid inlet one-way valve (7), the second compression ring (9) is also positioned between the outer convex edge (16) and the inner convex edge (17), the two first flange seats (10) are correspondingly compressed onto the first compression ring (8) and the second compression ring (9), the first compression ring (8) is of a hollow structure, an opening is formed in the surface facing the inside, and a pressure sensor (20) communicated with the inside is fixed on the first compression ring (8), and a detection pipe communicated with the interior is fixed on the first compression ring (8), and a valve is connected on the detection pipe.

9. The high-pressure liquid ammonia pump according to claim 1, wherein: the tip of keeping away from first flange seat (10) and going out liquid check valve (6) and keeping away from first flange seat (10) in feed liquor check valve (7) all is provided with second flange seat (11), two second flange seat (11) and corresponding feed liquor house steward (13) and play liquid house steward (12) are connected, feed liquor check valve (7) or play liquid check valve (6) can be dismantled and set up between first flange seat (10) and second flange seat (11), and between first flange seat (10) and second flange seat (11) and circumference distribute have many lead screw (24), the both ends of lead screw (24) can be dismantled with first flange seat (10) and second flange seat (11) and be connected to inflatable seal ring (25) are all installed to the both ends of feed liquor check valve (7) and the both ends of going out liquid check valve (6).

10. The high-pressure liquid ammonia pump according to claim 1, wherein: solid acoustic sensors (26) are fixed on the liquid inlet one-way valve (7) and the liquid outlet one-way valve (6).

Images