CN207609544U - A kind of reciprocating compressor tolerance stepless regulating system - Google Patents
A kind of reciprocating compressor tolerance stepless regulating system Download PDFInfo
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- CN207609544U CN207609544U CN201721577418.4U CN201721577418U CN207609544U CN 207609544 U CN207609544 U CN 207609544U CN 201721577418 U CN201721577418 U CN 201721577418U CN 207609544 U CN207609544 U CN 207609544U
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- 229910052757 nitrogen Inorganic materials 0.000 claims description 82
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Abstract
The utility model is related to contracting machine tolerance regulation technology fields, specifically disclose a kind of reciprocating compressor tolerance stepless regulating system, including control system, mechanical actuating mechanism and hydraulic system, the control system control machinery executing agency action, hydraulic system provides high pressure liquid pressure by oil inlet pipe for mechanical actuating mechanism, the fluid in mechanical actuating mechanism is back in petrol station by return line and oil leak pipeline, realizes that oil circulation utilizes.The utility model amount regulating system carries failure monitor function and redundancy feature, ensure that reliability and the safety of system, on the basis of can realize reciprocating compressor tolerance step-less adjustment function, saves the energy to greatest extent.
Description
Technical field
The utility model belongs to compressor tolerance regulation technology field, and in particular to a kind of reciprocating compressor tolerance is stepless
Regulating system.
Background technology
Reciprocating compressor is a kind of positive displacement compressor, and intake valve and air bleeding valve are equipped on cylinder, when living in cylinder
When plug does iterative motion, the volume in cylinder periodically changes therewith, under the collective effect of intake valve and air bleeding valve,
Realize expansion, air-breathing, compression and the exhaust of gas.
Reciprocating compressor is the important equipment in energy industry, and under normal circumstances, the rate of discharge of compressor is base
This is constant, but with the variation of process requirements in production, the gas consumption of compressor changes often, thus compressor
Tolerance just needs to be adjusted in a certain range so that tolerance meets the technological requirement of live gas consumption.
Traditional reciprocating compressor tolerance regulative mode has：Rotational speed regulation, clearance are adjusted, bypass is adjusted, total travel top
Air valve is driven into adjust and the open-top air inlet valve regulation of partial journey.Rotational speed regulation is not suitable for large reciprocating compressor.Clearance tune
It is poor to save reliability, needs more human intervention.Bypass adjusts the step-less adjustment that tolerance may be implemented, and meets site technique
It is required that but energy consumption waste is serious.The open-top intake valve of total travel can only realize that the adjusting of tolerance stepping can not achieve and continuously adjust.Portion
Branch's Cheng Dingkai intake valves may be implemented tolerance and continuously adjust and save the energy, but technically also immature.Application at present is most
More adjusting methods still bypasses adjusting.
Large reciprocating compressor is applied to process industry, belongs to the heart equipment of factory, it is desirable that continuous operation cannot
Parking, otherwise can bring heavy economic losses.Currently in order to realizing that energy saving and tolerance is adjusted, the country has had patent proposition to be based on
The tolerance stepless regulating system of the open-top intake valve of partial journey.But there are still many problems in use, limit this technology
Application in the industry.Particular problem is as follows：1. life problems：Such as solenoid valve life problems and hydraulic cylinder in executing agency
Life problems；2. regulating system failure monitoring and the precautionary measures are insufficient：Such as compressor operating period and regulating system control
Monitoring in the consistency in period processed, to hydraulic fluid temperature, the monitoring of pressure and liquid level in hydraulic system and to intake valve
Monitoring temperature；3. the safety precautions after control system failure is insufficient：Such as after control system fails, regulating system is taken
Which kind of measure ensures live reciprocating compressor normal operation.
Therefore can realize reciprocating compressor tolerance continuously adjust, to greatest extent save the energy while, safety
High, highly reliable and regulating system does not interfere with the amount regulating system of live compressor normal operation after breaking down, at
For the active demand of some industries.
Invention content
The purpose of this utility model is to provide a kind of reciprocating compressor tolerance stepless regulating systems, realize reciprocating pressure
Contracting machine tolerance is adjusted, and saves the energy to the maximum extent, and have failure monitoring and redundancy feature, it is ensured that the safety of system and longevity
Life.
The technical solution of the utility model is as follows：
A kind of reciprocating compressor tolerance stepless regulating system is used for reciprocating compressor, the reciprocating compressor
Including compressor main motor, compressor flywheel, compresser cylinder, compressor intake valve, piston is equipped in compresser cylinder,
The side of compressor flywheel is equipped with top dead-centre sensor；
The top dead-centre sensor is used for acquiring compressor upper dead center position information, and CPU module is calculated according to this signal
Go out the synchronizing cycle of compressor, and then determines the initial time of the output control open-top signal of compressor intake valve and open-top hold
The continuous time；
Tolerance stepless regulating system includes control system, mechanical actuating mechanism and hydraulic system；
The control system includes CPU module, output module and input module, receives signal by input module, leads to
It crosses CPU module and sends out control instruction, acted by output module control machinery executing agency；
The power supply of control system is redundant power, and the redundant power is using input bus, loading bus and shares total
" three buses " circuit structure of line；
The mechanical actuating mechanism, the valve opening for being bolted on compressor intake valve cover face, including solenoid valve,
Hydraulic cylinder, nitrogen seal device and temperature sensor；
The solenoid valve is set to the top of hydraulic cylinder, is fixedly connected with hydraulic cylinder by four trip bolts；
Port A, port P and port T are equipped on solenoid valve；When port A is connected to port P, formation oil inlet access P-A is logical
Road；When port A is connected to port T, way to cycle oil A-T accesses are formed；
The hydraulic cylinder includes upper cylinder body, lower cylinder body, piston bush, piston rod, hydraulic stem, seals guide support one, is close
Seal guide support two, sealing guide support three and oil-scraping ring support；
The upper cylinder body is set to the top of lower cylinder body, and the two is fixedly connected by hexagon socket cap head screw；
It is internally provided with rodless cavity A and rod chamber B in upper cylinder body, rodless cavity A and rod chamber B are coaxial；
It is equipped with actuator port on the upper surface of upper cylinder body, is connected to port A and rodless cavity A；
It is equipped with oil inlet and oil outlet in the side of upper cylinder body, wherein oil inlet is connected to port P, oil outlet and port T
Connection；
It is equipped with inserting through-hole in an axial direction in upper cylinder body and lower cylinder body, screw thread inserting type temperature is installed in inserting through-hole
Sensor；
The piston bush is set in rodless cavity A, is connected through a screw thread with upper cylinder body；
It is equipped with high-pressure seal ring in piston bush and upper cylinder body junction, forms static seal；
One end of the piston rod is set in piston bush, there is gap between the two, the other end of piston rod, which is located at, to be had
In rod cavity B；
It is equipped with annular balance slot in the outside of the piston rod, when fluid flows through compensating groove, is formed and is vortexed in slot, make oil
Liquid switchs to turbulent mixture state by laminar condition and forms resistance barrier；
It is equipped with drain tap and leakage port in the side of lower cylinder body, drain tap can lead back to the Leakage Energy at the sealing of piston clearance
Fuel tank；
From top to bottom it is equipped with sealing guide support one, sealing guide support two and sealing guide support successively in lower cylinder body
Three；
The sealing guide support one, sealing guide support two and seal the cylindrical shape that guide support 31 is hollow
Shape, three are coaxial；
In the seal chamber C for being internally provided with annular of sealing guide support two, seal chamber C is connected to leakage port；
It is equipped with groove one and guide groove one in the inner wall of the sealing guide support one, combined seal ring one is set to groove one
Interior, guidance tape one is set in guide groove one；
It is equipped with groove two and groove three in the inner wall of sealing guide support two, combined seal ring two is set in groove two, group
Sealing ring three is closed to be set in groove three；
It is equipped with groove four and guide groove two in sealing three inner wall of guide support, combined seal ring four is set in groove four, leads
It is set in guide groove two to band two；
The guidance tape one and guidance tape two is used for hydraulic stem righting；
It is equipped with bleeder port on the side wall of the sealing guide support two, is connected to the leakage port of lower cylinder body side；
The oil-scraping ring branch stays at the lower exit port of lower cylinder body, is connected through a screw thread with lower cylinder body；
The nitrogen seal device is set to the lower section of lower cylinder body, including the support of nitrogen envelope oil-scraping ring, nitrogen seal device link and nitrogen
It is sealed envelope guide support；
It is hollow structure that the support of nitrogen envelope oil-scraping ring, nitrogen seal device link and the nitrogen, which is sealed guide support, and
Three is coaxial；
Air cavity D is equipped in nitrogen seal device link；
The nitrogen envelope oil-scraping ring branch stays at the lower section of nitrogen seal device link, and the two is connected through a screw thread；
The nitrogen is sealed the inside that guide support is set to nitrogen seal device link；
One end of the hydraulic stem is located in rod chamber B, and with the end thereof contacts of piston rod, the other end pass through sealing lead
To support one, seal chamber C, sealing guide support two, sealing guide support three, oil-scraping ring support, nitrogen seal device link, nitrogen envelope
After sealing guide support and nitrogen envelope oil-scraping ring support, it is located at the lower section of nitrogen seal device；
It is equipped with combined seal ring five at cooperation of the oil-scraping ring support with hydraulic stem, in nitrogen envelope oil-scraping ring support and hydraulic stem
Combined seal ring eight is equipped at cooperation；
It is sealed at guide support and hydraulic stem cooperation in nitrogen and is equipped with combined seal ring six, combined seal ring seven, guidance tape
Three and guidance tape four, for separating the nitrogen in air cavity D and the processing medium in reciprocating compressor cylinder；
Inflating port is equipped on the side wall of nitrogen seal device link, for being filled with the nitrogen of certain pressure into air cavity D；
Unloader is set on compressor intake valve, and the off-load resetting spring is set in unloader, can act on piston
Make its reset on bar；
The hydraulic system includes oil inlet pipe, oil return line, oil leak pipeline, filter, hydraulic oil unit motor, pressure
Transmitter, liquid-level switch and temperature transmitter；
One end of the oil inlet pipe and one end of oil return line are connected to petrol station respectively, and branch is equipped on oil return line
Road, as oil leak pipeline；The other end of the oil inlet pipe is connected with the oil inlet in mechanical actuating mechanism, oil leak pipeline it is another
One end is connected with the drain tap in mechanical actuating mechanism, and the other end of oil return line is connected with the oil outlet of mechanical actuating mechanism；
There are two the filters, is respectively arranged on oil inlet pipe and oil return line；
The hydraulic oil unit motor is set to the top of petrol station, can drive petrol station inner teeth wheel pump, for mechanical execution machine
Structure provides high pressure liquid pressure oil；
One end of the pressure transmitter is connected with oil inlet pipe, and the other end is connected to control system, for measure into
Oil pressure in oil pipe line, and send fuel injection pressure signal to control system；
One end of the liquid-level switch is connected with petrol station, and the other end is connected to control system, for detecting in petrol station
Fluid liquid level, and liquid level signal is sent to control system；
One end of the temperature transmitter is connected with petrol station, and the other end is connected to control system, for measuring in petrol station
Oil liquid temperature, and oil temperature signal is sent to control system；
The opening and closing of solenoid valve in the control system control machinery executing agency, and then control opening for hydraulic cylinder
It opens and closes, realize that compressor tolerance is adjusted.
It is equipped with O-ring one in the junction of upper cylinder body and lower cylinder body, axial static seal is realized, prevents the oil in rod chamber B
Liquid leaks.
Sealing guide support one, sealing guide support two and the sealing guide support three passes through three O type circles respectively
Two form three radial direction static seals with lower cylinder body inner wall.
It is sealed guide support in the nitrogen and is equipped with O-ring three with nitrogen seal device link joint, forms static seal.
O-ring four is additionally provided between the nitrogen seal device link and lower cylinder body, nitrogen seal device link passes through fastening
Screw is fixedly connected with lower cylinder body, while being compressed O-ring four and being formed axial static seal together.
The combined seal ring one, combined seal ring two, combined seal ring three, combined seal ring four, combined seal ring
Five, combined seal ring six, combined seal ring seven and combined seal ring eight are made of O-ring and slip ring.
Power supply 1 and power supply 2 in the redundant power are hot connecting and disconnecting source module, they are connected with parallel way,
C1, C2 are the control module of each power supply, and S1, S2 are controlled current regulator, and SENSE1 and SENSE2 are power detection signal,
FB is load voltage feedback signal；
Two filters are the redundance type filter of " one open one standby ", are provided in the front end of each filter
Electromagnetic switch valve.
The hydraulic system provides high pressure liquid pressure by oil inlet pipe for mechanical actuating mechanism, by return line and
Fluid in mechanical actuating mechanism is back in petrol station by oil leak pipeline, realizes that oil circulation utilizes.
The control system can by send out alarm signal to the temperature, liquid level of fluid in hydraulic system and pressure into
Row failure monitoring carries out fault detect and to hydraulic system oil inlet pipe and oil return to startup and the overload of hydraulic oil unit motor
Filter setting alarm on pipeline；The alarm signal includes common alarm signal and failure alarm signal.
The beneficial effects of the utility model are：
The utility model amount regulating system carry failure monitor function and redundancy feature, ensure that system reliability and
Safety saves the energy to greatest extent on the basis of can realize reciprocating compressor tolerance step-less adjustment function.
The utility model amount regulating system, which is also equipped with, adjusts interstage pressure and Mechanical security protector function, even if control
System breaks down, and will not influence the safe and reliable normal operation of reciprocating compressor.
Description of the drawings
Fig. 1：Amount regulating system structure chart；
Fig. 2：Redundant power structure chart；
Fig. 3：Mechanical actuating mechanism leftschematic diagram；
Fig. 4：Mechanical actuating mechanism right side schematic view；
Fig. 5：Mechanical actuating mechanism is schemed with compressor intake valve composition；
Fig. 6：Hydraulic cylinder schematic diagram；
Fig. 7：Hydraulic cylinder lower cylinder body sealed structural representation；
Fig. 8：Amplification assumption diagram at I in Fig. 7.
In figure：1- solenoid valves；2- hydraulic cylinders；3- nitrogen seal devices；4- temperature sensors；5- upper cylinder bodies；6- lower cylinder bodies；7- lives
Plug sleeve；8- piston rods；9- hydraulic stems；10- seals guide support one；11- seals guide support two；12- seals guide support three；
13- oil-scraping rings support；14- oil inlets；15- actuator ports；16- oil outlets；17- drain taps；18- hexagon socket cap head screws；
19- trip bolts；20- high-pressure seal rings；21-O types circle one；22-O types circle two；23-O type circles；24- slip rings；25- guidance tapes
One；26- combined seal rings one；27- combined seal rings two；28- combined seal rings three；29- combined seal rings four；30- combinations are close
Seal five；31- guidance tapes two；32- combined seal rings six；33- combined seal rings seven；34- guidance tapes three；35- guidance tapes four；
36- leakage ports；37- combined seal rings eight；38- nitrogen seals oil-scraping ring support；39- nitrogen seal device links；40- nitrogen is sealed guiding
Support；41- inflating ports；42-O types circle three；43-O types circle four；44- filters；45- hydraulic oil unit motors；46- pressure transmitters；
47- liquid-level switches；48-CPU modules；49- output modules；50- input modules；51- compressor main motors；52- top dead-centres sense
Device；53- compressor flywheels；54- compresser cylinders；55- pistons；56- compressor intake valves；57- off-load resetting springs；58- is superfluous
Remaining power supply；59- temperature transmitters.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment is described in further detail the utility model.
As shown in Figure 1, a kind of reciprocating compressor tolerance stepless regulating system, is used for reciprocating compressor, described is past
Twin compressor includes compressor main motor 51, compressor flywheel 53, compresser cylinder 54, compressor intake valve 56.It is compressing
It is equipped with piston 55 in machine cylinder 54, top dead-centre sensor 52 is equipped in the side of compressor flywheel 53.
The top dead-centre sensor 52 is used for acquiring compressor upper dead center position information, and CPU module 48 is according to this signal
The synchronizing cycle of compressor is calculated, and then determines initial time and the top of the output control open-top signal of compressor intake valve 56
The duration opened.
The tolerance stepless regulating system includes control system, mechanical actuating mechanism and hydraulic system.
The control system includes CPU module 48, output module 49 and input module 50, is received by input module 50
Signal sends out control instruction by CPU module 48, is acted by 49 control machinery executing agency of output module.
As shown in Fig. 2, the power supply of control system is redundant power 58, the redundant power 58 uses input bus, bears
Carry " three buses " circuit structure of bus and shared bus.Power supply 1 and power supply 2 are hot connecting and disconnecting source module, they are with parallel connection side
Formula is connected, and C1, C2 are the control module of each power supply, and S1, S2 are that controlled current regulator, SENSE1 and SENSE2 examine for power supply
Signal is surveyed, FB is load voltage feedback signal.When system worked well, control module by adjusting current regulator conducting journey
Degree makes each power module of the use of system equalization, each power module provide identical electric current to system, when one of electricity
When source is broken down, current regulator is cut off, so that trouble power is isolated from power-supply system, and carry out fault alarm.This
Design can improve the reliability of control system.
Such as Fig. 3~mechanical actuating mechanism shown in fig. 5, the valve opening for being bolted on compressor intake valve 56 covers
Face, including solenoid valve 1, hydraulic cylinder 2, nitrogen seal device 3 and temperature sensor 4.
The solenoid valve 1 is set to the top of hydraulic cylinder 2, is fixedly connected with hydraulic cylinder 2 by four trip bolts 19.
Solenoid valve 1 is equipped with port A, port P and port T.The solenoid valve 1 can select to meet the commercially available of the utility model demand
Various types of products.When port A is connected to port P, oil inlet access P-A accesses are formed；When port A is connected to port T, shape
At way to cycle oil A-T accesses.
As shown in fig. 6, the hydraulic cylinder 2 include upper cylinder body 5, lower cylinder body 6, piston bush 7, piston rod 8, hydraulic stem 9,
Seal guide support 1, sealing guide support 2 11, sealing guide support 3 12 and oil-scraping ring support 13.
The upper cylinder body 5 is set to the top of lower cylinder body 6, and the two is fixedly connected by hexagon socket cap head screw 18.
Upper cylinder body 5 is internally provided with rodless cavity A and rod chamber B, and rodless cavity A and rod chamber B are coaxial.In the connection of upper cylinder body 5 and lower cylinder body 6
Place is equipped with O-ring 1, realizes axial static seal, prevents the fluid in rod chamber B from leaking.
It is equipped with actuator port 15 on the upper surface of upper cylinder body 5, is connected to port A and rodless cavity A.In upper cylinder body 5
Side is equipped with oil inlet 14 and oil outlet 16, and wherein oil inlet 14 is connected to port P, and oil outlet 16 is connected to port T.
It is equipped with inserting through-hole in an axial direction in upper cylinder body 5 and lower cylinder body 6, screw thread inserting type temperature is installed in inserting through-hole
Sensor 4 is spent, gas temperature in the temperature and compresser cylinder for measuring three O-rings 2 22.
The piston bush 7 is set in rodless cavity A, is connected through a screw thread with upper cylinder body 5, in piston bush 7 and upper cylinder body 5
Junction is equipped with high-pressure seal ring 20, forms static seal.One end of the piston rod 8 is set in piston bush 7, is deposited between the two
In gap, the other end of piston rod 8 is located in rod chamber B.In 2 action process of hydraulic cylinder, between piston bush 7 and piston rod 8
Its leakage rate is controlled to achieve the purpose that sealing by rationally designing length, the width in gap in the presence of mutual movement.Work as high pressure
When oil stream crosses gap, one layer of oil film is formed, lubrication and bearing can also be played the role of.The piston rod 8 and piston bush 7 is adopted
Small with kinematics and static friction coefficient, hardness is big, and there are the materials of certain degree of hardness difference, such as chrome-molybdenum steel.
It is equipped with annular balance slot in the outside of the piston rod 8, when fluid flows through compensating groove, can be formed and be vortexed in slot,
So that fluid is switched to turbulent mixture state by laminar condition and form resistance barrier, throttles to be formed to fluid, and make its generation
The pressure loss as big as possible reduces leakage.Because there are errors for the geometry and concentricity of part itself, make the height of work
Pressure oil in seal clearance mal-distribution and form hydraulic card clamping force, it increases the frictional force between dynamic sealing pair.By setting
Set compensating groove so that the radial oil pressure for acting on 8 outside of piston rod tends to balance, and piston rod 8 can be automatic with piston bush 7
Centering, since the leakage of concentric circumferential weld is small more than eccentric circumferential weld, the centering of sealing pair part can also reduce the leakage of fluid
Amount, further increases sealing performance.
It is equipped with drain tap 17 and leakage port 36 in the side of lower cylinder body 6, drain tap 17 can be by letting out at the sealing of piston clearance
Oil leak leads back to fuel tank.
Sealing guide support 1, sealing guide support 2 11 and sealing is from top to bottom equipped with successively in lower cylinder body 6 to lead
To support 3 12, three forms three radial direction static seals by three O-rings 2 22 and 6 inner wall of lower cylinder body respectively.Described is close
Envelope guide support 1 seals guide support 2 11 and seals the cylindrical shape that guide support 3 12 is hollow, and three is coaxial.
In the seal chamber C for being internally provided with annular of sealing guide support 2 11, seal chamber C is connected to leakage port 36.
As shown in Figure 7 and Figure 8, groove one and guide groove one, combination are equipped in the inner wall of the sealing guide support 1
Sealing ring 1 is set in groove one, and guidance tape 1 is set in guide groove one.It is equipped in the inner wall of sealing guide support 2 11
Groove two and groove three, combined seal ring 2 27 are set in groove two, and combined seal ring 3 28 is set in groove three.It is led in sealing
It is equipped with groove four and guide groove two to 3 12 inner walls of support, combined seal ring 4 29 is set in groove four, and guidance tape 2 31 is set to
In guide groove two.The guidance tape 1 and guidance tape 2 31 is used for 9 righting of hydraulic stem.
It is equipped with bleeder port on the side wall of the sealing guide support 2 11, is connected with the leakage port 36 of 6 side of lower cylinder body
It is logical, it is recyclable from combined seal ring 2 27, combined seal ring 3 28 and 4 29 leaked gas of combined seal ring and from combination
The remaining fluid that sealing ring 1 leaks.
The material of the slip ring 24 be the polytetrafluoroethylene (PTFE) containing carbon fiber, the material friction coefficient is low, it is wear-resistant and
Anti-extrusion ability is strong, good seal performance.The elasticity of compression counter-force of the O-ring 23 provides for the surface that is slidingly sealed of slip ring 24
Ensure additional compression necessary to sealing.
The oil-scraping ring support 13 is set at the lower exit port of lower cylinder body 6, is connected through a screw thread with lower cylinder body 6.
The nitrogen seal device 3 is set to the lower section of lower cylinder body 6, including nitrogen envelope oil-scraping ring support 38, nitrogen seal device link
39 and nitrogen be sealed guide support 40.Nitrogen envelope oil-scraping ring support 38, nitrogen seal device link 39 and the nitrogen is sealed guiding
Support 40 is hollow structure, and three is coaxial.Wherein, it is additionally provided with O-ring between nitrogen seal device link 39 and lower cylinder body 6
4 43, nitrogen seal device link 39 is fixedly connected by trip bolt with lower cylinder body 6, while being compressed O-ring 4 43 and being formed together
Axial static seal is equipped with air cavity D in nitrogen seal device link 39.
The nitrogen envelope oil-scraping ring support 38 is set to the lower section of nitrogen seal device link 39, and the two is connected through a screw thread.
The nitrogen is sealed the inside that guide support 40 is set to nitrogen seal device link 39, and envelope guide support is sealed in nitrogen
40 are equipped with O-ring 3 42 with 39 joint of nitrogen seal device link, form static seal.
One end of the hydraulic stem 9 is located in rod chamber B, and with the end thereof contacts of piston rod 8, the other end pass through sealing
Guide support 1, seal chamber C, sealing guide support 2 11, sealing guide support 3 12, oil-scraping ring support 13, nitrogen seal device
After link 39, nitrogen are sealed guide support 40 and nitrogen envelope oil-scraping ring support 38, it is located at the lower section of nitrogen seal device 3.
It is equipped with combined seal ring 5 30 at cooperation of the oil-scraping ring support 13 with hydraulic stem 9, in nitrogen envelope oil-scraping ring support 38
With combined seal ring 8 37 is equipped at 9 cooperation of hydraulic stem, can realize the sealing of high pressure gas in hydraulic cylinder, be also possible to prevent outer
The dirts impurity such as dust, sand-lime in boundary's environment enters inside executing agency, reduces the abrasion of equipment.
Nitrogen be sealed at guide support 40 and 9 cooperation of hydraulic stem be equipped with combined seal ring 6 32, combined seal ring 7 33,
Guidance tape 3 34 and guidance tape 4 35, for separating the nitrogen in air cavity D and the processing medium in reciprocating compressor cylinder.
The combined seal ring 1, combined seal ring 2 27, combined seal ring 3 28, combined seal ring 4 29, group
Sealing ring 5 30, combined seal ring 6 32, combined seal ring 7 33 and combined seal ring 8 37 are closed by O-ring 23 and slip ring
24 compositions.
Inflating port 41 is equipped on the side wall of nitrogen seal device link 39, for being filled with the nitrogen of certain pressure into air cavity D
Gas.
Unloader is set on compressor intake valve 56, and the off-load resetting spring 57 is set in unloader, can be acted on
Make its reset on piston rod 8.
The hydraulic system include oil inlet pipe, oil return line, oil leak pipeline, filter 44, hydraulic oil unit motor 45,
Pressure transmitter 46, liquid-level switch 47 and temperature transmitter 59.
One end of the oil inlet pipe and one end of oil return line are connected to petrol station respectively, and branch is equipped on oil return line
Road, as oil leak pipeline.The other end of the oil inlet pipe is connected with the oil inlet 14 in mechanical actuating mechanism, oil leak pipeline
The other end be connected with the drain tap 17 in mechanical actuating mechanism, the other end of oil return line and the oil outlet of mechanical actuating mechanism
16 are connected.High pressure liquid pressure is provided for mechanical actuating mechanism by oil inlet pipe, it will be mechanical by return line and oil leak pipeline
Fluid in executing agency is back in petrol station, realizes that oil circulation utilizes.
There are two the filters 44, is respectively arranged on oil inlet pipe and oil return line.Two filters 44
It is the redundance type filter of " one open one standby ", electromagnetic switch valve is provided in the front end of each filter 44, when the mistake to come into operation
After the filter core of filter 44 blocks and jam signal is transmitted to control system, controller system input module 50 can be to receive filter core stifled
By electromagnetic switch valve switch filtering device 44 while filling in signal, plugged sereen 44 is closed and by spare filter 44
It puts into system, to ensure the cleannes of fluid in hydraulic system, mechanical execution will not be not enough caused because of oil cleanliness
There is plugging fault in mechanism.
The hydraulic oil unit motor 45 is set to the top of petrol station, can drive petrol station inner teeth wheel pump, is executed for machinery
Mechanism provides high pressure liquid pressure oil.
One end of the pressure transmitter 46 is connected with oil inlet pipe, and the other end is connected to control system, for measuring
Oil pressure in oil inlet pipe, and send fuel injection pressure signal to control system.
One end of the liquid-level switch 47 is connected with petrol station, and the other end is connected to control system, for detecting in petrol station
Fluid liquid level, and liquid level signal is sent to control system.
One end of the temperature transmitter 59 is connected with petrol station, and the other end is connected to control system, for measuring petrol station
In oil liquid temperature, and oil temperature signal is sent to control system.
The opening and closing of solenoid valve 1 in the control system control machinery executing agency, and then control hydraulic cylinder 2
It opens and closes, realizes that compressor tolerance is adjusted.Specifically, the input module 50 of control system first receives top dead-centre sensing
After the signal of device 52, CPU module 48 calculates synchronizing cycle and the upper dead center position of compressor according to this signal, then according to same
Step period and upper dead center position determine the initial time of the output control open-top signal of compressor intake valve 56.Then further according to pressure
Contracting machine load is calculated with pressure at expulsion measured value, determines the duration of 56 open-top signal of control compressor intake valve.
After output module 49, which exports, controls open-top 56 signal of compressor intake valve, in mechanical actuating mechanism in solenoid valve 1
Portion switches to P-A accesses, and the high pressure liquid pressure oil in petrol station is applied in mechanical actuating mechanism by hydraulic system, and hydraulic cylinder 2 is opened,
Compressor intake valve 56 is open-top；After reaching the control compressor intake valve 56 open-top duration, control system output control
The signal that compressor intake valve 56 resets switches to A-T accesses in mechanical actuating mechanism inside solenoid valve 1, hydraulic oil is by returning
Oil pipe line flows back into petrol station, and hydraulic cylinder 2 is closed, and compressor intake valve 56 is closed.For compound compressor, the utility model
Regulating system can adjust interstage pressure by final stage feedback system.
The control system can also be by sending out temperature, liquid level and pressure of the alarm signal to fluid in hydraulic system
Failure monitoring is carried out, the alarm signal includes common alarm signal and failure alarm signal.When common alarm signal occurs
When, staff can selectively make corresponding measure according to site specific；When failure alarm signal occurs, control system
System can send out interlocking signal, and amount regulating system is cut off, and staff must take necessary measure by after Failure elimination,
Amount regulating system can be put into again.When the oil liquid temperature value that temperature transmitter 59 measures in hydraulic system is more than 70 DEG C, control
System processed can send out the high common police instruction of oil temperature；When oil liquid temperature value is more than 80 DEG C, control system can send out high oil temperature
Fault alarm indicates, and hydraulic oil unit motor 45 and mechanical actuating mechanism Concatenate shut-down.When the oil pressure that pressure transmitter 46 measures
Value reduces 2MPa, and control system can send out the common police instruction of low oil pressure；When oil pressure value reduces 3MPa, control system can send out oil
Press through low fault alarm instruction, and hydraulic oil unit motor 45 and mechanical actuating mechanism Concatenate shut-down.When liquid-level switch 47 senses
In fuel tank after fluid low signal, control system can send out the low fault alarm instruction of liquid level, and hydraulic oil unit motor 45 and machinery are held
Row mechanism Concatenate shut-down.
When the temperature value that temperature sensor 4 measures is more than 120 DEG C, illustrate 56 operation irregularity of compressor intake valve, controls
System can send out the excessively high failure alarm signal of compressor intake valve gas temperature and hydraulic oil unit motor 45 is shut down in interlocking.
The control system is provided with fault detect to the startup of hydraulic oil unit motor 45 with overload, works as hydraulic oil unit
There is phase sequence mistake or when overload phenomenon occurs in hydraulic oil unit motor 45 in motor 45 when starting, control system can send out corresponding report
Alert instruction and disconnection hydraulic oil unit motor 45 instruct, and disconnect motor circuit by the control signal of output module 49 and machinery is held
Row mechanism improves the stability of hydraulic system.
Oil inlet pipe filter 44 is respectively set in the controls and oil return line filter 44 is alarmed, when filter 44
Filter core block, control system receives jam signal and is simultaneously emitted by filter police instruction, and staff is prompted to replace filter
Core.
To ensure that the control accuracy of amount regulating system, controlling cycle need to be with compressor operating period real-time synchronizations, this
The upper dead center position signal that system is received using top dead-centre sensor 52, is sent to control system, and control system can be according to this
Signal calculates controlling cycle in real time.When the periodic quantity that continuously within 5 compressor operating periods, control system calculates is less than T/2
Or it is more than 3T/2, T is compressor rated duty cycle, and regulating system can be cut off automatically, and reciprocating compressor tolerance is adjusted by original
Mode is adjusted.
After control system breaks down, control signal no longer exports, and the solenoid valve 1 in mechanical actuating mechanism receives not
To control signal, the spool of solenoid valve 1 automatically resets to home under the action of valve inner spring, under home, electricity
The oil inlet path blockade of magnet valve 1, port A and the port T-phase of solenoid valve 1 connect, and hydraulic cylinder 2 is connected with the port A of solenoid valve 1, because
This pressure release immediately herein, the at this time meeting of piston rod 8 of hydraulic cylinder 2 reset under the action of off-load resetting spring 57, and piston rod 8 resets
Afterwards, effect of the keying no longer by hydraulic cylinder 2 of compressor intake valve 56, only by the inlet outlet pressure differential of compressor intake valve 56 Lai
Control, reciprocating compressor is restored to full tolerance working condition, and compressor cannot adjust tolerance and energy saving at this time, but not influence
The safe and reliable normal operation of reciprocating compressor.
Claims (10)
1. a kind of reciprocating compressor tolerance stepless regulating system is used for reciprocating compressor, the reciprocating compressor packet
Compressor main motor (51), compressor flywheel (53), compresser cylinder (54), compressor intake valve (56) are included, in compressor gas
It is equipped with piston (55) in cylinder (54), top dead-centre sensor (52) is equipped in the side of compressor flywheel (53)；
The top dead-centre sensor (52) is used for acquiring compressor upper dead center position information, and CPU module (48) is according to this signal
Calculate the synchronizing cycle of compressor, so determine output control compressor intake valve (56) open-top signal initial time and
The open-top duration；
It is characterized in that：Including control system, mechanical actuating mechanism and hydraulic system；
The control system includes CPU module (48), output module (49) and input module (50), is passed through input module (50)
Signal is received, control instruction is sent out by CPU module (48), is acted by output module (49) control machinery executing agency；
The power supply of control system is redundant power (58), and the redundant power (58) is using input bus, loading bus and is total to
Enjoy " three buses " circuit structure of bus；
The mechanical actuating mechanism, the valve opening for being bolted on compressor intake valve (56) cover face, including solenoid valve
(1), hydraulic cylinder (2), nitrogen seal device (3) and temperature sensor (4)；
The solenoid valve (1) is set to the top of hydraulic cylinder (2), connects by the way that four trip bolts (19) and hydraulic cylinder (2) are fixed
It connects；
Port A, port P and port T are equipped on solenoid valve (1)；When port A is connected to port P, formation oil inlet access P-A is logical
Road；When port A is connected to port T, way to cycle oil A-T accesses are formed；
The hydraulic cylinder (2) includes upper cylinder body (5), lower cylinder body (6), piston bush (7), piston rod (8), hydraulic stem (9), sealing
Guide support one (10), sealing guide support two (11), sealing guide support three (12) and oil-scraping ring support (13)；
The upper cylinder body (5) is set to the top of lower cylinder body (6), and the two is fixedly connected by hexagon socket cap head screw (18)；
It is internally provided with rodless cavity A and rod chamber B in upper cylinder body (5), rodless cavity A and rod chamber B are coaxial；
It is equipped with actuator port (15) on the upper surface of upper cylinder body (5), is connected to port A and rodless cavity A；
It is equipped with oil inlet (14) and oil outlet (16) in the side of upper cylinder body (5), wherein oil inlet (14) is connected to port P, goes out
Hydraulic fluid port (16) is connected to port T；
It is equipped with inserting through-hole in an axial direction in upper cylinder body (5) and lower cylinder body (6), screw thread inserting type temperature is installed in inserting through-hole
Spend sensor (4)；
The piston bush (7) is set in rodless cavity A, is connected through a screw thread with upper cylinder body (5)；
It is equipped with high-pressure seal ring (20) in piston bush (7) and upper cylinder body (5) junction, forms static seal；
One end of the piston rod (8) is set in piston bush (7), there is gap, the other end position of piston rod (8) between the two
In in rod chamber B；
It is equipped with annular balance slot in the outside of the piston rod (8), when fluid flows through compensating groove, is formed and is vortexed in slot, make oil
Liquid switchs to turbulent mixture state by laminar condition and forms resistance barrier；
It is equipped with drain tap (17) and leakage port (36) in the side of lower cylinder body (6), drain tap (17) can will be at the sealing of piston clearance
Leakage Energy lead back to fuel tank；
From top to bottom it is equipped with sealing guide support one (10), sealing guide support two (11) and sealing successively in lower cylinder body (6)
Guide support three (12)；
Sealing guide support one (10), sealing guide support two (11) and the sealing guide support three (12) is hollow
Cylindrical shape, three are coaxial；
In the seal chamber C for being internally provided with annular of sealing guide support two (11), seal chamber C is connected to leakage port (36)；
It is equipped with groove one and guide groove one in the inner wall of the sealing guide support one (10), combined seal ring one (26) is set to ditch
In slot one, guidance tape one (25) is set in guide groove one；
It is equipped with groove two and groove three in the inner wall of sealing guide support two (11), combined seal ring two (27) is set to groove two
Interior, combined seal ring three (28) is set in groove three；
It is equipped with groove four and guide groove two in sealing guide support three (12) inner wall, combined seal ring four (29) is set to groove four
Interior, guidance tape two (31) is set in guide groove two；
The guidance tape one (25) and guidance tape two (31) is used for hydraulic stem (9) righting；
It is equipped with bleeder port on the side wall of the sealing guide support two (11), is connected with the leakage port (36) of lower cylinder body (6) side
It is logical；
The oil-scraping ring support (13) is set at the lower exit port of lower cylinder body (6), is connected through a screw thread with lower cylinder body (6)；
The nitrogen seal device (3) is set to the lower section of lower cylinder body (6), including nitrogen envelope oil-scraping ring support (38), nitrogen seal device connection
Frame (39) and nitrogen are sealed guide support (40)；
It is hollow that nitrogen envelope oil-scraping ring support (38), nitrogen seal device link (39) and the nitrogen, which is sealed guide support (40),
Structure, and three is coaxial；
Air cavity D is equipped in nitrogen seal device link (39)；
The nitrogen envelope oil-scraping ring support (38) is set to the lower section of nitrogen seal device link (39), and the two is connected through a screw thread；
The nitrogen is sealed the inside that guide support (40) is set to nitrogen seal device link (39)；
One end of the hydraulic stem (9) is located in rod chamber B, and with the end thereof contacts of piston rod (8), the other end pass through sealing
Guide support one (10), seal chamber C, sealing guide support two (11), sealing guide support three (12), oil-scraping ring support (13),
After nitrogen seal device link (39), nitrogen are sealed guide support (40) and nitrogen envelope oil-scraping ring support (38), it is located at nitrogen seal device (3)
Lower section；
It is equipped with combined seal ring five (30) at cooperation of the oil-scraping ring support (13) with hydraulic stem (9), in nitrogen envelope oil-scraping ring support
(38) and at hydraulic stem (9) cooperation it is equipped with combined seal ring eight (37)；
It is sealed at guide support (40) and hydraulic stem (9) cooperation in nitrogen and is equipped with combined seal ring six (32), combined seal ring seven
(33), guidance tape three (34) and guidance tape four (35), for separating the nitrogen in air cavity D and the work in reciprocating compressor cylinder
Skill medium；
Inflating port (41) is equipped on the side wall of nitrogen seal device link (39), for being filled with the nitrogen of certain pressure into air cavity D
Gas；
Unloader is set on compressor intake valve (56), and the off-load resetting spring (57) is set in unloader, can be acted on
Piston rod makes its reset on (8)；
The hydraulic system include oil inlet pipe, oil return line, oil leak pipeline, filter (44), hydraulic oil unit motor (45),
Pressure transmitter (46), liquid-level switch (47) and temperature transmitter (59)；
One end of the oil inlet pipe and one end of oil return line are connected to petrol station respectively, and branch is equipped on oil return line,
As oil leak pipeline；The other end of the oil inlet pipe is connected with the oil inlet (14) in mechanical actuating mechanism, oil leak pipeline
The other end is connected with the drain tap (17) in mechanical actuating mechanism, the other end of oil return line and the oil outlet of mechanical actuating mechanism
(16) it is connected；
There are two the filters (44), is respectively arranged on oil inlet pipe and oil return line；
The hydraulic oil unit motor (45) is set to the top of petrol station, can drive petrol station inner teeth wheel pump, for mechanical execution machine
Structure provides high pressure liquid pressure oil；
One end of the pressure transmitter (46) is connected with oil inlet pipe, and the other end is connected to control system, for measure into
Oil pressure in oil pipe line, and send fuel injection pressure signal to control system；
One end of the liquid-level switch (47) is connected with petrol station, and the other end is connected to control system, for detecting in petrol station
Fluid liquid level, and liquid level signal is sent to control system；
One end of the temperature transmitter (59) is connected with petrol station, and the other end is connected to control system, for measuring in petrol station
Oil liquid temperature, and oil temperature signal is sent to control system；
The opening and closing of solenoid valve (1) in the control system control machinery executing agency, and then control hydraulic cylinder (2)
It opens and closes, realizes that compressor tolerance is adjusted.
2. a kind of reciprocating compressor tolerance stepless regulating system as described in claim 1, it is characterised in that：In the upper cylinder half
The junction of body (5) and lower cylinder body (6) is equipped with O-ring one (21), realizes axial static seal, prevents outside the fluid in rod chamber B
It lets out.
3. a kind of reciprocating compressor tolerance stepless regulating system as claimed in claim 2, it is characterised in that：The sealing
Guide support one (10), sealing guide support two (11) and sealing guide support three (12) pass through three O-rings two (22) respectively
Three radial direction static seals are formed with lower cylinder body (6) inner wall.
4. a kind of reciprocating compressor tolerance stepless regulating system as claimed in claim 3, it is characterised in that：It is sealed in the nitrogen
It seals guide support (40) and is equipped with O-ring three (42) with nitrogen seal device link (39) joint, form static seal.
5. a kind of reciprocating compressor tolerance stepless regulating system as claimed in claim 4, it is characterised in that：It is sealed in the nitrogen
O-ring four (43) is additionally provided between device link (39) and lower cylinder body (6), nitrogen seal device link (39) passes through trip bolt
It is fixedly connected with lower cylinder body (6), while compressing O-ring four (43) and forming axial static seal together.
6. a kind of reciprocating compressor tolerance stepless regulating system as claimed in claim 5, it is characterised in that：The combination
Sealing ring one (26), combined seal ring two (27), combined seal ring three (28), combined seal ring four (29), combined seal ring five
(30), combined seal ring six (32), combined seal ring seven (33) and combined seal ring eight (37) are by O-ring (23) and slip ring
(24) it forms.
7. a kind of reciprocating compressor tolerance stepless regulating system as claimed in claim 6, it is characterised in that：The redundancy
Power supply 1 and power supply 2 in power supply (58) are hot connecting and disconnecting source module, they are connected with parallel way, and C1, C2 are each power supply
Control module, S1, S2 are controlled current regulator, and SENSE1 and SENSE2 are power detection signal, and FB feeds back for load voltage
Signal.
8. a kind of reciprocating compressor tolerance stepless regulating system as claimed in claim 7, it is characterised in that：Described two
Filter (44) is the redundance type filter of " one open one standby ", and electromagnetic switch is provided in the front end of each filter (44)
Valve.
9. a kind of reciprocating compressor tolerance stepless regulating system as claimed in claim 8, it is characterised in that：The hydraulic pressure
System provides high pressure liquid pressure by oil inlet pipe for mechanical actuating mechanism, is executed machinery by return line and oil leak pipeline
Fluid in mechanism is back in petrol station, realizes that oil circulation utilizes.
10. a kind of reciprocating compressor tolerance stepless regulating system as claimed in claim 9, it is characterised in that：The control
System processed can carry out failure monitoring by sending out alarm signal to the temperature, liquid level and pressure of fluid in hydraulic system, to liquid
The startup of pressure oil station motor (45) is with overload progress fault detect and to the mistake on hydraulic system oil inlet pipe and oil return line
Filter (44) setting alarm；The alarm signal includes common alarm signal and failure alarm signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721577418.4U CN207609544U (en) | 2017-11-22 | 2017-11-22 | A kind of reciprocating compressor tolerance stepless regulating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721577418.4U CN207609544U (en) | 2017-11-22 | 2017-11-22 | A kind of reciprocating compressor tolerance stepless regulating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207609544U true CN207609544U (en) | 2018-07-13 |
Family
ID=62796034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721577418.4U Withdrawn - After Issue CN207609544U (en) | 2017-11-22 | 2017-11-22 | A kind of reciprocating compressor tolerance stepless regulating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207609544U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939660A (en) * | 2017-11-22 | 2018-04-20 | 北京航天石化技术装备工程有限公司 | A kind of reciprocating compressor tolerance stepless regulating system |
| CN115591367A (en) * | 2022-11-30 | 2023-01-13 | 沈阳海龟医疗科技有限公司（Cn） | Vacuum compression all-in-one machine of reciprocating type VPSA technique |
-
2017
- 2017-11-22 CN CN201721577418.4U patent/CN207609544U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107939660A (en) * | 2017-11-22 | 2018-04-20 | 北京航天石化技术装备工程有限公司 | A kind of reciprocating compressor tolerance stepless regulating system |
| CN107939660B (en) * | 2017-11-22 | 2023-12-15 | 北京航天石化技术装备工程有限公司 | Stepless air quantity regulating system of reciprocating compressor |
| CN115591367A (en) * | 2022-11-30 | 2023-01-13 | 沈阳海龟医疗科技有限公司（Cn） | Vacuum compression all-in-one machine of reciprocating type VPSA technique |
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