CN103147969A - Micro-flow rate super-pressure reciprocating self-control pump - Google Patents
Micro-flow rate super-pressure reciprocating self-control pump Download PDFInfo
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Abstract
The invention discloses a micro-flow rate super-pressure reciprocating self-control pump, which comprises a reciprocating pump system and a data acquisition control system, wherein the reciprocating pump system comprises a power end and a hydraulic end; the power end consists of a motor, a belt, a speed reducer and a transmission device; the hydraulic end consists of a pump cylinder, a plunger rod, a one-way oil inlet valve, a one-way oil outlet valve and an oil inlet and outlet pipeline; the oil inlet and outlet pipeline comprises an oil tank, an oil inlet path, a pressure meter pressure-relief oil path and a pressure-relief oil path, wherein the oil inlet path comprises an inlet electromagnetic flow rate adjusting valve and a detected piece; a pressure-relief flow rate adjusting valve is arranged in the pressure-relief oil path; a pressure sensor is connected with the pressure meter pressure-relief oil path; a pressure signal of the pressure sensor is input to the data acquisition control system; signals of the inlet electromagnetic flow rate adjusting valve, the pressure meter pressure-relief flow rate adjusting valve and the pressure-relief flow rate adjusting valve are input to the data acquisition control system respectively; and the data acquisition control system is connected with a computer. The micro-flow rate super-pressure reciprocating self-control pump disclosed by the invention realizes real-time monitoring by virtue of a microcomputer and is capable of adjusting the flow rate and the pressure of the pump at any time according to needs.
Description
Technical field
The present invention relates to the reciprocal Self-controlled pump of a kind of ultrahigh pressure, relate in particular to the reciprocal Self-controlled pump of a kind of micrometeor ultrahigh pressure, belong to petrochemical industry, be widely used in the Performance Detection to small pressure container, high pressure pipe line, high pressure sealing element, high tension instrument etc.
Background technique
High pressure reciprocating pump is comprised of motor, coupling, retarder, drive part, pump head part, public base etc.It is by motor by retarder, belt transmission or stepless speed adjusting gear, drive crankshaft rotating, promote connecting rod and make plunger do straight reciprocating motion through slide block (crosshead), be issued to the liquid sucking-discharging purpose in the keying effect of pump head inlet valve.Plunger pump is a kind of of reciprocating pump, belongs to positive displacement pump.Rotatablely moving of motor changed into the to-and-fro motion of plunger by eccentric wheel and crosshead slipper mechanism.When the plunger post-tensioning, the closed chamber volume that is formed by inlet one-way valve outlet one-way valve and plunger increases, pressure decreased, and outlet valve cuts out, and inlet valve is opened, and liquid enters in cavity; When pushing away before plunger, by the closed chamber volume reducing that inlet one-way valve outlet one-way valve and plunger form, working room's pressure raises, and inlet valve cuts out, and when going out pipeline pressure, outlet valve is opened, the liquid discharge.So, along with the to-and-fro motion of plunger, liquid constantly enters outlet conduit from inlet pipe by plunger pump.
Superpressure pump is all high equipment of a kind of Security, reliability requirement, all be widely used at aspects such as pressure test, superelevation potential source and high-pressure water cuttings, especially on the industrial production such as petrochemical industry as a kind of conveying equipment, play a part very large.Along with petroleum industry is more and more higher to the requirement of reciprocating pump, reciprocating pump is high towards delivery pressure, flow is large, manufacturing and easy to maintenance, the future development such as Pulse of flow and pressure is little, volume and weight is little.Since the later stage nineties, the superpressure pump product of China has a great development, realized by single reciprocating pump to multiple pattern pressurized machine, by transformer oil working medium to clear water working medium, by small-power to high-power, by intermitten service (pressure test) to continuously operation (flow process is used and water jet cuts), by the supporting transformation to complete sets of equipment of unit.Especially the nineties high-pressure water cutting technique and market development, impel high-pressure service pump to update, will have an immense impact on to the ultrahigh pressure field.Secondly, back and forth pump structure is updated along with improving of world technology, and its power end develops into motor, hydraulic system etc. by steamer, and driving end also has the various ways such as crank-connecting rod, cam.
Xue Shengxiong is a leading personage of research superpressure pump, he has proposed typical structure, experimental study and the related standards thereof of superpressure pump in nineteen ninety-five, design difficulty, technical requirements and the test method of this series products have been summed up, for exploitation and the application of superpressure pump provides foundation.
At present, on market, superpressure pump has been obtained good achievement at aspects such as coal winning machine, jet drilling technology.Superhigh pressure water jet is fractured rock directly, and the ultrahigh pressure abradant jet has been arranged again subsequently, and superhigh pressure water jet aided drilling technology provides a kind of new numerical method for the research of rock breaking mechanism.The superhigh pressure jetting drilling technology can increase substantially footage per bit and rate of penetration, and reduces drilling cost, for the efficient quick drill well has been opened up wide prospect.Zhou Xinjian has proposed in 2004 that Ultra-High Pressure Hand Pump is little, simple to operate with its volume, the strong advantage of property easy to use, safe, is widely used in the industries such as coal metallurgy, petrochemical industry, electric power, machinery, is a kind of hydraulic power supply simply and easily.This pump is easy to use flexibly in addition, labor intensity is low, durable accident rate is few, is a kind of desirable small flow ultrahigh-pressure hydraulic power source.Aspect medical science, U.S. Yusuke Abe etc. has done comprehensive research to the total artificial heart pump, heart pump (claiming again blood pump) is the critical component of ventricular assist device, be a new branch of fluid machinery, it is the interdiscipline that collector mechanics, machinery, medical science, electricity, electromagnetism and control are integrated; The AIP2000-III insulin pump is a microinfusion pump of controlling with microcomputer in addition, and after the state of an illness setting data of doctor according to patient, insulin pump continuously imitated pancreas in 24 hours and is patient's supplementation with insulin.
Although Chinese scholars has been carried out performance study and the improved work of more ultrahigh pressure reciprocating pump, but also there are a lot of deficiencies in the ultrahigh pressure reciprocating pump: (1) complex structure, the manufacturing process difficulty is large, ultrahigh pressure reciprocating pump in the market often flow and volume all larger; (2) flow and pressure pulsation are large, and noise is large, and the easily damaged parts life-span is short, and reliability is low; (3) relate to the product of micrometeor ultrahigh pressure this respect pump less, automation efficient is low; (4) system of existing small flow ultrahigh pressure reciprocating pump fails to realize the flow to pump, real-time control and the detection of pressure by microcomputer.
Summary of the invention
The object of the invention is to not to be suitable for small pressure container, high pressure pipe line, high pressure sealing element, high tension instrument etc. for present ultrahigh pressure reciprocating pump and detect required micrometeor, the characteristics of hyperpressure, develop the special-purpose ultrahigh pressure reciprocating pump that a kind of output flow is little, pressure is high, easy to operate, reliability is high, and realized carrying out Real Time Monitoring by microcomputer, can regulate flow, the pressure of pump at any time according to demand.
Technical solution of the present invention: the reciprocal Self-controlled pump of micrometeor ultrahigh pressure, formed by reciprocating pump system and data acquisition control system, wherein, described data acquisition control system is comprised of control cabinet, computer, pressure transducer, flow transducer and data acquisition device, reciprocating pump system is comprised of power end and fluid end, and described power end is made of motor, belt, retarder and transmission device; Described fluid end is comprised of pumping cylinder, plunger rod, unidirectional oiling valve, unidirectional outlet valve and turnover oil pipe line, the turnover oil pipe line comprises oil groove, in-line, pressure gauge release oil circuit and release oil circuit, described in-line comprises import Electromagnetic Flow modulating valve and detected pieces, the import of described import Electromagnetic Flow modulating valve is connected with oil groove by pipeline, import Electromagnetic Flow modulating valve, unidirectional oiling valve, pumping cylinder, unidirectional outlet valve are connected pipeline with detected pieces and connect successively, and the outlet of described unidirectional outlet valve also is connected with pressure gauge through the pressure gauge Protective valve; Be provided with pressure gauge release flow control valve in described pressure gauge release oil circuit, described pressure gauge release flow control valve one end is connected with oil groove, the other end of described pressure gauge release flow control valve be connected pressure gauge and connect; Be provided with the release flow control valve in the release oil circuit, the import of release flow control valve is connected with detected pieces by pipeline, the outlet of release flow control valve is connected with oil groove by pipeline, pressure transducer is connected with pressure gauge release oil circuit, the pressure signal input data acquisition control system of pressure transducer; The signal of described import Electromagnetic Flow modulating valve, pressure gauge release flow control valve and release flow control valve is inputted respectively data acquisition control system, and the input data acquisition control system is connected with computer.
Described transmission device comprises guiding device and eccentric wheel and cross slides, guiding device is comprised of guide rod, guide sleeve and guide bracket, guide rod is installed in guide sleeve, guide sleeve is arranged on guide bracket, eccentric wheel and cross slides are comprised of the eccentric wheel in eccentric wheel case, sliding conductor and crosshead shoe, crosshead shoe is placed in sliding conductor, and plunger rod is connected with guide rod by crosshead shoe.Described Reciprocatin pump power end drives speed reducer by motor by belt, and then drives guide rod, is loaded on the eccentric wheel in eccentric wheel case, and power is reached crosshead shoe, and crosshead shoe drives plunger rod and moves reciprocatingly.
As a further improvement on the present invention, described pump cylinder adopts T-shaped friendship hole, and not only simple in structure, wall thickness is even, and the life-span is long.
as a further improvement on the present invention, described pumping cylinder connects by seal arrangement with plunger rod, described seal arrangement is by the V-type piston ring that is sleeved on plunger rod, gland and filler gland nut form, internal diameter and plunger rod external diameter bottom the piston cavity of described pumping cylinder adapt, the piston cavity of described pumping cylinder is provided with bore axes to abducent the first concave station near the position of bottom, the piston cavity top of described pumping cylinder is provided with bore axes to abducent the second concave station, the outer surface on the top of described gland is provided with the boss that adapts with described the second concave station, described gland inserts in piston cavity, in the gland bottom, plunger rod, the first concave station and piston cavity inwall surround stuffing box packing is provided with described V-type piston ring in the chamber, described filler gland nut connects swivel nut by plunger and compresses gland.Wherein the employing flexible material of V-type piston ring, have than obdurability and wear resistance, also has certain self-lubricating property simultaneously.
Described in line check valve is comprised of oil-feed valve seat, oil-feed valve pad, oil-feed spool, inipple, fuel tap pad, the oil-feed spool is placed in the lower end that is arranged on pump cylinder in the oil-feed valve seat, be threaded connection between the two, adopt the oil-feed valve pad to seal, inipple uses the FERRULETYPE connecting sleeve on pipeline, be installed on the oil-feed valve seat, and seal by the fuel tap pad, wherein the material of oil-feed valve pad is the performances such as red copper has hardness, moderate strength, corrosion resistance is good, ductility is good, can play good seal action.
Described oil outlet one-way valve is comprised of delivery valve seat, fuel-displaced valve pad, spool, fuel-displaced valve pocket, delivery connection packing ring, inipple, fuel tap pad, attaching nut; It is mid-in delivery valve seat that fuel-displaced spool is placed on fuel-displaced valve pocket, is arranged on the upper end of pump cylinder, and both are threaded connection.Spool is comprised of top and bottom, and the lower end is provided with the cylindrical body of longitudinal hole for periphery, and the lower end embeds in fuel-displaced valve pocket, play the guiding role, and the taper shape that the upper end is big up and small down.Adopt fuel-displaced valve pad to seal, on pipeline, both are installed on the oil-feed valve seat and by the delivery connection packing ring by the attaching nut and seal inipple with the FERRULETYPE connecting sleeve.
The spool of native system invention, valve seat and with the linkage structure of the pump housing; When one-way valve is imported and exported in design, consider that its mechanical strength and hardness will satisfy the high pressure requirement, designed the new structure that valve seat is separated with the pump housing, this structure has guaranteed that machining requires the precision that reaches, and has solved again the seal leakage problem that is connected between one-way valve and cylinder body.
The reciprocal Self-controlled pump of micrometeor ultrahigh pressure of the present invention is applied widely, is specially adapted to the bursting test that ultrahigh pressure small containers and high pressure pipe line element function detect, as: the elements such as high pressure rupture disk, metallic hose, threeway, elbow; Also be applicable to the hydrostatic test of high pressure sealing element and Performance Detection thereof, as the compressive strength of minitype high voltage valve, high-pressure metal pad and the tests such as leakage test, wide range pressure meter calibration, but micrometeor ultrahigh pressure reciprocating pump stability of flow in using process, pressure is high, fluctuation is little, easy to operate, flow and these advantages of pressure real-time monitoring have well satisfied requirement of experiment.
Technique effect of the present invention embodies in the following areas:
(1) minimum output can reach the micrometeor of 10mL/min;
(2) maximum delivery pressure can reach the ultrahigh pressure of 200MPa;
(3) realized real-time control and the monitoring of microcomputer to flow and pressure;
(4) stability of flow, pressure surge are little;
(5) realized that the single unit system volume is little, compact structure, easy and simple to handle;
(6) energy-efficient, reliability is high.
Description of drawings
Fig. 1 is theory structure schematic diagram of the present invention;
Fig. 2 is pump housing main structure chart of the present invention;
Fig. 3 be spool of the present invention, valve seat and with the long splice composition of the pump housing;
Fig. 4 is the valve core structure schematic diagram;
Fig. 5 is the A-A sectional view of Fig. 4.
In figure:
The 1--oil groove, the 2--oil guide cup, the 3--detected pieces, 4--pressure gauge, 5--import Electromagnetic Flow modulating valve, 6-unidirectional oiling valve, 7-unidirectional outlet valve, 8--pressure gauge Protective valve, 9--pumping cylinder, the 10--plunger rod, 11-pressure gauge release flow control valve, 12--release flow control valve, 13--pressure transducer, 14--pressure transducer microcomputer joint, 15--flow control valve microcomputer joint, 16--release flow control valve signal output connector, 17--pressure gauge release Flow-rate adjustment valve joint, the 18--data acquisition control system, the 20--fluid end; 601--oil-feed valve pad, 602--oil-feed valve seat, 603--inipple, 604--oil-feed spool, 701--delivery connection packing ring, 702--delivery valve seat, the fuel-displaced spool of 703--, the fuel-displaced valve pocket of 704--, the fuel-displaced valve pad of 705--, 706-fuel tap pad, 707--attaching nut, 708-fuel-displaced spool upper end, the fuel-displaced spool of 709--lower end, 710-fuel-displaced spool lower end longitudinal hole, 901--pump cylinder, 902-filler gland nut, 903--gland, 904--V type piston ring; The 1001--motor, 1002--casing, 1003--belt, 1004--guide sleeve, 1005--guide rod, the 1006--guide bracket, 1007--screw M6,1008--eccentric wheel, the eccentric wheel case of 1009--, the sliding conductor of 1010--, the 1011--slide block, 1012--fixed plate, 1013--plunger rod, 1014--oil fill plug.
Embodiment
The present invention is further elaborated by following examples, but does not limit the scope of the invention.
Embodiment 1
As shown in Figure 1, the reciprocal Self-controlled pump 100 of micrometeor ultrahigh pressure, formed by reciprocating pump system and data acquisition control system 18, wherein, data acquisition control system 18 is comprised of control cabinet, computer, pressure transducer 13, flow transducer 12 and data acquisition device, reciprocating pump system is comprised of power end and fluid end 20, and power end is made of motor 1001, belt 1003, retarder and transmission device; Fluid end 20 is comprised of pumping cylinder, plunger rod 1013, unidirectional oiling valve, unidirectional outlet valve and turnover oil pipe line, the turnover oil pipe line comprises oil groove 1, in-line, pressure gauge release oil circuit and release oil circuit, in-line comprises import Electromagnetic Flow modulating valve 5 and detected pieces 3, connection is connected in the import of import Electromagnetic Flow modulating valve with oil groove by pipeline, import Electromagnetic Flow modulating valve 5, unidirectional oiling valve 6, pumping cylinder 9, unidirectional outlet valve 7 are connected with detected pieces and are connected successively by pipeline, and the outlet of unidirectional outlet valve also is connected connection through pressure gauge Protective valve 8 with pressure gauge; Be provided with pressure gauge release flow control valve 11 in pressure gauge release oil circuit, pressure gauge release flow control valve one end is connected with oil groove, the other end of pressure gauge release flow control valve be connected pressure gauge and connect; Be provided with release flow control valve 12 in the release oil circuit, connection is connected in the outlet of release flow control valve 12 with oil groove by pipeline, the import of release flow control valve 12 is connected with detected pieces by pipeline, pressure transducer 13 is connected with pressure gauge release oil circuit, the pressure signal input data acquisition control system 18 of pressure transducer 13; The signal that import Electromagnetic Flow modulating valve 5, pressure gauge release flow control valve 11 are connected with the release flow control valve is inputted respectively data acquisition control system 18 and is connected with computer.
the reciprocal Self-controlled pump working procedure of micrometeor ultrahigh pressure of the present invention is (as shown in Figure 1): control motor by data acquisition control system and reach crosshead slipper by retarder band movable eccentric wheel and be connected reciprocating with piston rod 10, working medium oil is entered unidirectional oiling valve 6 by import Electromagnetic Flow modulating valve 5 in oil groove 1 suck in pumping cylinder 9, the adjusting of uninterrupted can be controlled import Electromagnetic Flow modulating valve 5 by microcomputer, the flow regulating signal of output is sent to data acquisition control system 18 by microcomputer joint 15, when piston column advances in the cylinder, unidirectional oiling valve 6 cuts out, Medium Oil flows in detected pieces 3 cavitys by unidirectional oil outlet valve 7.One-way valve 8 is housed below pressure gauge 4, and purpose is at detected test specimen moment explosion time protection pressure gauge, and the adjusting of pressure size is controlled release flow control valve 12 by microcomputer; The data acquisition device that the pressure signal size is transmitted in data acquisition control system 18 by microcomputer interface 14 by pressure transducer 13, data acquisition device is connected with computer, and flow and pressure are carried out real-time control and detection.
As shown in Figure 2, transmission device comprises guiding device and eccentric wheel and cross slides, guiding device is comprised of guide rod 1005, guide sleeve 1004 and guide bracket 1006, guide rod 1005 is installed in guide sleeve 1004, guide sleeve 1004 is arranged on guide bracket 1006, and guide bracket 1006 use screws 1007 are fixed on fixed plate 1012 and casing 1002.Eccentric wheel and cross slides are comprised of the eccentric wheel 1008 in eccentric wheel case 1009, sliding conductor 1010 and crosshead shoe 1011, and crosshead shoe 1010 is placed in sliding conductor 1010, and plunger rod 1013 is connected with guide rod 1005 by crosshead shoe 1010.Reciprocatin pump power end is to drive speed reducers by motor 1001 by belt 1003, and then drives guide rod 1005, is loaded on the eccentric wheel 1008 in eccentric wheel case 1009, and power is reached crosshead shoe 1011, and crosshead shoe 1011 drives plunger rods 1013 and moves reciprocatingly.
as shown in Figure 2, pumping cylinder connects by seal arrangement with plunger rod, seal arrangement is by the V-type piston ring 904 that is sleeved on plunger rod, gland 903 and filler gland nut 902 form, internal diameter and plunger rod external diameter bottom the piston cavity of pumping cylinder adapt, the piston cavity of described pumping cylinder is provided with bore axes to abducent the first concave station near the position of bottom, the piston cavity top of described pumping cylinder is provided with bore axes to abducent the second concave station, the outer surface on the top of described gland is provided with the boss that adapts with described the second concave station, described gland inserts in piston cavity, in the gland bottom, piston rod, the first concave station and piston cavity inwall surround stuffing box packing is provided with described V-type piston ring in the chamber, described filler gland nut connects swivel nut by plunger and compresses gland.Wherein the employing flexible material of V-type piston ring, have than obdurability and wear resistance, also has certain self-lubricating property simultaneously.
as shown in Figure 2, in line check valve 6 is by oil-feed valve seat 602, oil-feed valve pad 601, oil-feed spool 604, inipple 603, fuel tap pad 706 forms, oil-feed spool 604 is placed in the lower end that is arranged on pump cylinder 901 in oil-feed valve seat 602, both are threaded connection with oil-feed valve pad 601 to seal, inipple 603 use FERRULETYPE connecting sleeves seal being installed on pipeline on oil-feed valve seat 602 and by fuel tap pad 706, wherein the material of fuel tap pad 706 is red coppers, has hardness, moderate strength, corrosion resistance is good, the performances such as ductility is good, can play good seal action.
As shown in Fig. 2 and 3, oil outlet one-way valve 7 is comprised of delivery valve seat 702, fuel-displaced valve pad 705, spool 703, fuel-displaced valve pocket 704, delivery connection packing ring 701, inipple 603, fuel tap pad 706, attaching nut 707; Fuel-displaced spool 703 is placed in fuel-displaced valve pocket 704 and is placed in delivery valve seat 702, be arranged on the upper end of pump cylinder 901, both are threaded connection with fuel-displaced valve pad 705 to seal, inipple 603 use FERRULETYPE connecting sleeves are on pipeline, and both are installed on oil-feed valve seat 702 and by delivery connection packing ring 701 by attaching nut 707 and seal.
The spool of native system invention, valve seat and with the linkage structure of the pump housing; When one-way valve is imported and exported in design, consider that its mechanical strength and hardness will satisfy the high pressure requirement, designed the new structure that valve seat is separated with the pump housing, this structure has guaranteed that machining requires the precision that reaches, and has solved again the seal leakage problem that is connected between one-way valve and cylinder body.
Claims (7)
1. the reciprocal Self-controlled pump of micrometeor ultrahigh pressure, formed by reciprocating pump system and data acquisition control system, wherein, described data acquisition control system is comprised of control cabinet, computer, pressure transducer, flow transducer and data acquisition device, reciprocating pump system is comprised of power end and fluid end, it is characterized in that, described power end is made of motor, belt, retarder and transmission device; Described fluid end is comprised of pumping cylinder, plunger rod, unidirectional oiling valve, unidirectional outlet valve and turnover oil pipe line, the turnover oil pipe line comprises oil groove, in-line, pressure gauge release oil circuit and release oil circuit, described in-line comprises import Electromagnetic Flow modulating valve and detected pieces, the import of described import Electromagnetic Flow modulating valve is connected with oil groove by pipeline, import Electromagnetic Flow modulating valve, unidirectional oiling valve, pumping cylinder, unidirectional outlet valve are connected pipeline with detected pieces and connect successively, and the outlet of described unidirectional outlet valve also is connected with pressure gauge through the pressure gauge Protective valve; Be provided with pressure gauge release flow control valve in described pressure gauge release oil circuit, described pressure gauge release flow control valve one end is connected with oil groove, the other end of described pressure gauge release flow control valve be connected pressure gauge and connect; Be provided with the release flow control valve in the release oil circuit, the import of release flow control valve is connected with detected pieces by pipeline, the outlet of release flow control valve is connected with oil groove by pipeline, pressure transducer is connected with pressure gauge release oil circuit, the pressure signal input data acquisition control system of pressure transducer; The signal of described import Electromagnetic Flow modulating valve, pressure gauge release flow control valve and release flow control valve is inputted respectively data acquisition control system, and the input data acquisition control system is connected with computer.
2. the reciprocal Self-controlled pump of micrometeor ultrahigh pressure according to claim 1, it is characterized in that, described transmission device comprises guiding device and eccentric wheel and cross slides, guiding device is comprised of guide rod, guide sleeve and guide bracket, guide rod is installed in guide sleeve, and guide sleeve is arranged on guide bracket, and eccentric wheel and cross slides are comprised of the eccentric wheel in eccentric wheel case, sliding conductor and crosshead shoe, crosshead shoe is placed in sliding conductor, and plunger rod is connected with guide rod by crosshead shoe; Described Reciprocatin pump power end drives speed reducer by motor by belt, and then drives guide rod, is loaded on the eccentric wheel in eccentric wheel case, and power is reached crosshead shoe, and crosshead shoe drives plunger rod and moves reciprocatingly.
3. the reciprocal Self-controlled pump of micrometeor ultrahigh pressure according to claim 1, is characterized in that, described pump cylinder adopts T-shaped friendship hole.
4. the reciprocal Self-controlled pump of micrometeor ultrahigh pressure according to claim 1, it is characterized in that, described pumping cylinder connects by seal arrangement with plunger rod, described seal arrangement is by the V-type piston ring that is sleeved on plunger rod, gland and filler gland nut form, internal diameter and plunger rod external diameter bottom the piston cavity of described pumping cylinder adapt, the piston cavity of described pumping cylinder is provided with bore axes to abducent the first concave station near the position of bottom, the piston cavity top of described pumping cylinder is provided with bore axes to abducent the second concave station, the outer surface on the top of described gland is provided with the boss that adapts with described the second concave station, described gland inserts in piston cavity, in the gland bottom, plunger rod, the first concave station and piston cavity inwall surround stuffing box packing is provided with described V-type piston ring in the chamber, described filler gland nut connects swivel nut by plunger and compresses gland.
5. the reciprocal Self-controlled pump of micrometeor ultrahigh pressure according to claim 1, it is characterized in that, described in line check valve is comprised of oil-feed valve seat, oil-feed valve pad, oil-feed spool, inipple, fuel tap pad, the oil-feed spool is placed in the lower end that is arranged on pump cylinder in the oil-feed valve seat, be threaded connection between the two, adopt the oil-feed valve pad to seal, inipple uses the FERRULETYPE connecting sleeve on pipeline, be installed on the oil-feed valve seat, and seal by the fuel tap pad.
6. the reciprocal Self-controlled pump of micrometeor ultrahigh pressure according to claim 1, is characterized in that, described oil outlet one-way valve is comprised of delivery valve seat, fuel-displaced valve pad, fuel-displaced spool, fuel-displaced valve pocket, delivery connection packing ring, inipple, fuel tap pad, attaching nut; It is mid-in delivery valve seat that fuel-displaced spool is placed on fuel-displaced valve pocket, is arranged on the upper end of plunger cylinder, and both are threaded connection.
7. the reciprocal Self-controlled pump of micrometeor ultrahigh pressure according to claim 6, is characterized in that, described fuel-displaced spool is comprised of top and bottom, and the lower end is provided with the cylindrical body of longitudinal hole for periphery, and the lower end embeds in fuel-displaced valve pocket, the taper shape that the upper end is big up and small down.
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| CN107061090A (en) * | 2017-04-22 | 2017-08-18 | 山东鑫亚格林鲍尔燃油系统有限公司 | A kind of high voltage common rail pump is with entering fuel-displaced compound control structure |
| CN108317064A (en) * | 2018-04-12 | 2018-07-24 | 上海海洋大学 | A kind of buoyancy adjustment plunger pump device for complete extra large deep diving hydrophone |
| CN112283429A (en) * | 2020-10-27 | 2021-01-29 | 东南大学 | Micro-fluidic stepless flow regulator |
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| CN106322860A (en) * | 2016-09-23 | 2017-01-11 | 海信科龙电器股份有限公司 | Unloading valve component for air conditioner and air conditioner |
| CN107061090A (en) * | 2017-04-22 | 2017-08-18 | 山东鑫亚格林鲍尔燃油系统有限公司 | A kind of high voltage common rail pump is with entering fuel-displaced compound control structure |
| CN107061090B (en) * | 2017-04-22 | 2023-10-27 | 山东鑫亚格林鲍尔燃油系统有限公司 | Oil inlet and outlet composite control structure for high-pressure common rail pump |
| CN108317064A (en) * | 2018-04-12 | 2018-07-24 | 上海海洋大学 | A kind of buoyancy adjustment plunger pump device for complete extra large deep diving hydrophone |
| CN112283429A (en) * | 2020-10-27 | 2021-01-29 | 东南大学 | Micro-fluidic stepless flow regulator |
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|---|---|
| CN103147969B (en) | 2016-01-13 |
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