CN206072344U - Driving owner drives seal pressure control system - Google Patents
Driving owner drives seal pressure control system Download PDFInfo
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- CN206072344U CN206072344U CN201620974902.XU CN201620974902U CN206072344U CN 206072344 U CN206072344 U CN 206072344U CN 201620974902 U CN201620974902 U CN 201620974902U CN 206072344 U CN206072344 U CN 206072344U
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Abstract
The utility model discloses a kind of driving owner drives seal pressure control system.The main driving sealing structure of development machine has sealing runner and coolant flow channel, main driving seal pressure control system includes sealing oil pressure control subsystem and cooling cycle subsystem, sealing oil pressure control subsystem is used to control oil pressure in sealing runner, and cooling cycle subsystem is used to cool down coolant flow channel.Sealing oil pressure control subsystem includes：First power set, first control device, the first storage device, the first detection display device and the second detection display device, first power set are used to drive seal grease to flow between sealing runner and the first storage device, first control device is used for the pressure and flow for controlling flow direction sealing runner, and first, second detection display device is respectively used to detect the seal grease pressure, temperature and the flow that flow in or out sealing runner.According to system of the present utility model, the main effectiveness and reliability for driving sealing structure can be improved.
Description
Technical field
This utility model is related to Boring Machine Technique field, drives seal pressure control system more particularly, to a kind of driving owner
System.
Background technology
Tunneler construction is urban subway tunnel, crosses rivers vcehicular tunnel, crosses river water delivery or gas pipeline construction
Key operation method, as the main driving of one of tunneler core component, while the rotation for cutterhead provides moment of torsion,
Also subject to whole thrusts of propulsion system.Before good sealing system ensures base bearing performance and safe operating life
Carry, if in work progress, the sealing of base bearing goes wrong, the leakage of main bearing lubrication oil or muddy water and dregs etc. will be caused
Into base bearing or gear-box, immeasurable loss is brought to shield-tunneling construction.
The shield excavation machine of constructing tunnel is the gyration by cutterhead, the soil body is cut by cutter thereon
Carry out tunneling.There is between cutterhead and driver element relative motion, driver element is fixed, is provided with therebetween
It is multiple-sealed.Tunnel is usually located at more than ten meters of below ground, even tens meters depths, and excavation face has very big soil pressure.Such as
Really main driving sealing system pressure transient, causes in the case of with pressure lubrication oil, between sealing ring and excavation face
Pressure-difference fluctuation is excessive, and in the tunneler course of work, in spoil storehouse, the muddy water with certain pressure and sandstone are easy-adhesion
To on sealing ring, cause sealing ring unstable wear, temperature to raise too fast, or even soil can be deep into main drive by main driving sealing
The destruction of base bearing or gear is directly contributed in dynamic case.Now, even if in tunnel changing in time or keeping in repair, construction can also be extended
Duration, increase construction cost and engineering risk, have a strong impact on constructing tunnel.
Therefore, reliable and stable seal pressure control plays extremely important role for tunneler construction.
Existing main driving sealing structure is generally three seals ring, and oils and fatss, and three seals ring are full of between sealing ring
Abrasion it is essentially identical.But actually play primary seal effect is first sealing ring with ft connection, once the sealing
Ring is damaged, and second and three seals ring can also be quickly damaged, and cause seal failure, can only be torn machine open and be changed sealing ring.
Between existing sealing ring, the pressure of oils and fatss is constantly to inject certain pressure oil to maintain by many places oil filler point
's.From the point of view of actually used situation, the pressure before and after per pass sealing ring gradually can increase and uncontrollable, i.e. the 3rd road is higher than the
Two roads, second are higher than first, and first is higher than external pressure (P3 ＞ P2 ＞ P1).As sealing ring can only bear necessarily
Back pressure, as external pressure increases, need to increase sealing ring quantity and reach the n-th road, and oil liquid temperature is being effectively controlled
Afterwards, can be only achieved sealing effectiveness.However, the pressure for causing the n-th road sealing ring to bear is exceeded sealing ring itself by this method
The back pressure limit, causes seal ring seal to fail.Once and fail, bigger will be caused to the base bearing and gear inside main driving
Destruction.
Utility model content
The application is intended at least solve one of technical problem present in prior art.For this purpose, this utility model is intended to carry
Seal pressure control system is driven for a kind of driving owner, carried out detecting, cooled down with the main driving sealing structure for development machine
And control.
Seal pressure control system, the main driving sealing structure tool of development machine are driven according to driving owner of the present utility model
There is the sealing runner that can fill seal grease, the main driving sealing structure also has can fill coolant and for described close
The coolant flow channel cooled down by envelope runner, main driving seal pressure control system include sealing oil pressure control subsystem and cooling
Cycle subsystem, the sealing oil pressure control subsystem are suitable to be connected to control in the sealing runner with the sealing runner
The pressure of seal grease, the cooling cycle subsystem are suitable to be connected to provide cold to the coolant flow channel with the coolant flow channel
But liquid to be to reduce the temperature of seal grease, wherein, the sealing oil pressure control subsystem includes：First power set, first
Control device, the first storage device, the first detection display device and the second detection display device, first power set are used for
Seal grease is driven to flow between the sealing runner and first storage device, the first control device is used to control
The pressure and flow of the seal grease of the sealing runner, the first detection display device are flowed to from first storage device
For detecting the change of the pressure, temperature and flow of the seal grease for flowing into the sealing runner, second detection shows dress
Put the change of the pressure, temperature and flow of the seal grease flowed out from the sealing runner for detection.
Seal pressure control system is driven according to the driving owner of this utility model embodiment, by arranging sealing oil pressure
Control subsystem, advantageously reduces the abrasion of the main sealing ring for driving sealing structure, extends the service life of sealing ring, reduce applying
Work cost, while larger external pressure can also be born, strengthens the main load performance for driving sealing, improves the safety of sealing
Property.Coolant is provided to the main coolant flow channel for driving sealing structure by arranging cooling cycle subsystem, so as to effective control
The oil temperature of the seal grease in sealing runner, makes seal grease reach preferable sealing effectiveness.Two subsystems are separate to be set
Put, interference is few each other, while can also simplify structure, beneficial to regulation and control.
In certain embodiments, the sealing oil pressure control subsystem also includes：First chiller, described first is cold
But device is cooled down for the seal grease to flowing out from the sealing runner.
Alternatively, first power set include pump and motor, the first control device include pressure-control valve and
Flow control valve.
Alternatively, the first detection display device and the second detection display device include respectively：Pressure transducer,
Temperature sensor, effusion meter and pressure gauge.
Alternatively, first chiller includes oil cooling machine.
In certain embodiments, the main driving sealing structure includes the 1st road sealing ring to the n-th road sealing ring, described close
Envelope runner includes (n+1) road seal oil chamber, the side of the direction main outside for driving sealing structure of the 1st road sealing ring
The 1st road seal oil chamber is limited, and the 2nd road seal oil chamber is limited between the 1st road sealing ring and the 2nd road sealing ring, successively
Analogize, between (n-1) road sealing ring and the n-th road sealing ring, limit the n-th road seal oil chamber, the court of n-th road sealing ring
(n+1) road seal oil chamber is limited to the main side driven on the inside of sealing structure, from the 2nd road seal oil chamber to institute
State the n-th road seal oil chamber and be intermediate seal oil pocket, in the corresponding sealing oil pressure control subsystem, first control
Device is used at least control to flow to the pressure and flow of the seal grease of intermediate seal oil pocket described in per pass respectively, first inspection
Surveying display device is used for the change that at least detection flows into the pressure, temperature and flow of the seal grease of intermediate seal oil pocket described in per pass
Change, the second detection display device is used at least detect from intermediate seal oil pocket described in per pass the pressure of the seal grease for flowing out
The change of power, temperature and flow.
In certain embodiments, the cooling cycle subsystem includes：Second power set, the second chiller, second
Storage device, second control device, the 3rd detection display device and the 4th detection display device, second power set are used for
Coolant is driven to flow between the coolant flow channel and second storage device, second chiller is for from institute
The coolant for stating coolant flow channel outflow is cooled down, and the 3rd detection display device is used to detect the inflow coolant flow channel
The change of the pressure, temperature and flow of coolant, the 4th detection display device are used for detection and flow out from the coolant flow channel
Coolant pressure, temperature and flow change, the second control device be used for control from the second storage device stream
To the pressure and flow of the coolant of the coolant flow channel.
Alternatively, second chiller includes water cooling unit.
Alternatively, second power set include pump and motor, the second control device include pressure-control valve and
Flow control valve, the 3rd detection display device and the 4th detection display device include respectively：Pressure transducer, temperature
Sensor, effusion meter and pressure gauge.
Additional aspect of the present utility model and advantage will be set forth in part in the description, partly will be from explained below
In become obvious, or by it is of the present utility model practice recognize.
Description of the drawings
Of the present utility model above-mentioned and/or additional aspect and advantage will from the description with reference to accompanying drawings below to embodiment
Become obvious and easy to understand, wherein：
Fig. 1 is the structural representation that seal pressure control system is driven according to the driving owner of this utility model embodiment；
Fig. 2 is that the main driving sealing structure of the development machine with multiple-sealed ring according to this utility model embodiment is illustrated
Figure；
Fig. 3 is the one of the control method of the driving owner's driving seal pressure control system according to this utility model embodiment
Plant schematic flow sheet.
Reference：
1- sealing oil pressure control subsystems, the detection display devices of 101- second, the first storage devices of 102-, 103- first
Power set, the first chillers of 104-, 105- first control devices, the detection display devices of 106- first,
2- cools down cycle subsystem, the detection display devices of 201- the 4th, the second chillers of 202-, the storage dresses of 203- second
Put, the second power set of 204-, 205- second control devices, the detection display devices of 206- the 3rd,
The main driving sealing structures of 3-, the 1st road sealing rings of 301-, the 2nd road sealing rings of 302-, the 3rd road sealing rings of 303-, 304-
4th road sealing ring, the n-th roads of 30n- sealing ring.
Specific embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein ad initio
Same or similar element or the element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining Description of Drawings is exemplary, it is intended to for explaining this utility model, and it is not intended that to this utility model
Restriction.
In description of the present utility model, it is to be understood that term " first ", " second " are only used for describing purpose, and
It is not intended that indicating or implying relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define
The feature of " first ", " second " can be expressed or implicitly include one or more this feature.Of the present utility model
In description, unless otherwise stated, " multiple " are meant that two or more.
In description of the present utility model, unless otherwise clearly defined and limited, term " installation ", " being connected ", " company
Connect ", " fixation " should be interpreted broadly, it is for example, it may be fixedly connected, or be detachably connected or integral；Can be
It is mechanically connected, or electrically connects；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can be two
The connection of element internal or the interaction relationship of two elements.For the ordinary skill in the art, can be concrete
Situation understands concrete meaning of the above-mentioned term in this utility model.
Describe below with reference to Fig. 1 and seal pressure control system is driven according to the driving owner of this utility model embodiment, this
In, the main system for driving the seal pressure that seal pressure control system is the main driving sealing structure 3 to development machine to be controlled.
The main driving sealing structure 3 of development machine has the sealing runner that can fill seal grease, and main driving sealing structure 3 also has can fill out
Fill coolant and for sealing the coolant flow channel cooled down by runner.
As shown in figure 1, according to the main driving seal pressure control system of this utility model embodiment, including：Sealing oil pressure
Power control subsystem 1 and cooling cycle subsystem 2, sealing oil pressure control subsystem 1 are suitable to be connected to control with sealing runner
The pressure of sealing runner interior sealing oils and fatss, cooling cycle subsystem 2 are suitable to be connected to provide cold to coolant flow channel with coolant flow channel
But liquid.
It is understood that sealing oil pressure control subsystem 1 can be by the main oil pressure cntrol for driving sealing structure 3 suitable
In suitable pressure limit, so as to the pressure that the sealing ring for ensureing main driving sealing structure 3 bears is less than the back of the body of sealing ring itself
The pressure limit, and then ensure the main sealing effectiveness for driving sealing structure 3.Meanwhile, it is also beneficial to reduce the abrasion of sealing ring, extends
The service life of sealing ring, reduces construction cost, can also bear larger external pressure, strengthens main driving sealing structure 3
Load performance, improves the safety of sealing.
Cooling cycle subsystem 2 is set coolant is provided to the main coolant flow channel for driving sealing structure 3, can be by sealing stream
The oil liquid temperature effective control of the seal grease in road.Obviously, if the temperature of seal grease is too high, seal grease bearing load
Ability will decline.Therefore, effectively after temperature control, seal grease can be only achieved preferable sealing effectiveness.
Sealing oil pressure control subsystem 1 and cooling cycle subsystem 2 are formed separately into separate subsystem, mutually
Between interference it is few, while can also simplify structure, beneficial to regulation and control.
With reference to Fig. 1, sealing oil pressure control subsystem 1 can include：First storage device 102, the first storage device 102
For storing seal grease, make to form oil between sealing oil pressure control subsystem 1 and the main sealing runner for driving sealing structure 3
Circulation, and to oil circulation with cushioning effect.First storage device 102 can include oil storage tank, alternatively, the first storage device
Filter can be provided with 102, filtered with the oil to circulating.
With reference to Fig. 1, sealing oil pressure control subsystem 1 can include：First power set 103, the first power set 103
For driving seal grease to flow between sealing runner and the first storage device 102.Alternatively, the first power set 103 are wrapped
Pump and motor are included, the first power set 103 are used for the power that oil pressure and circulation are provided for seal grease.
With reference to Fig. 1, sealing oil pressure control subsystem 1 can include：First control device 105, first control device 105
The pressure and flow of the seal grease of sealing runner are flowed to for control from the first storage device 102.Alternatively, the first control dress
Putting 105 includes pressure-control valve and flow control valve, so as to 105 simple structure of first control device, installs easy.
With reference to Fig. 1, sealing oil pressure control subsystem 1 also includes：First chiller 104, the first chiller 104 are used
In to from sealing runner flow out seal grease cool down, can avoid seal grease temperature it is too high to sealing effectiveness produce compared with
Big impact.Alternatively, the first chiller 104 includes oil cooling machine.
With reference to Fig. 1, sealing oil pressure control subsystem 1 also includes：First detection display device 106, the first detection show
Device 106 is used for the change of the pressure, temperature and flow for detecting the seal grease for flowing into sealing runner such that it is able to real-time detection
Whether the seal grease discharged to first control device 105 reaches predetermined pressure, temperature and flow.Dress is shown in the first detection
After putting 106 display testing results, controlled quentity controlled variable of first control device 105 etc. can be adjusted according to testing result, it is also possible to according to
Testing result adjusts the cooling degree of the first chiller 104.
With reference to Fig. 1, sealing oil pressure control subsystem 1 also includes：Second detection display device 101, the second detection show
Device 101 is used for the change of the pressure, temperature and flow of the seal grease that detection is flowed out from sealing runner.In such manner, it is possible in real time
Pressure, temperature and the flow of the seal grease that sealing runner is discharged are detected, and detection knot are shown in the second detection display device 101
After fruit, controlled quentity controlled variable of first control device 105 etc. can be adjusted according to testing result, it is also possible to according to testing result adjustment first
The cooling degree of chiller 104.
Alternatively, the first detection display device 106 and the second detection display device 101 include respectively：Pressure transducer, temperature
Degree sensor, effusion meter and pressure gauge.
In certain embodiments, as shown in figure 1, cooling cycle subsystem 2 includes：Second storage device 203, the second storage
Device 203 is used to store coolant, makes to form cold between cooling cycle subsystem 2 and the main coolant flow channel for driving sealing structure 3
But liquid circulation, and to coolant circulation with cushioning effect.Coolant can be water, and the second storage device 203 can include water storage
Groove, alternatively, can be provided with filter in the second storage device 203, be filtered with the water to circulating.
With reference to Fig. 1, cooling cycle subsystem 2 can include：Second power set 204, the second power set 204 are used to drive
Dynamic coolant flows between coolant flow channel and the second storage device 203.Alternatively, the second power set 204 include pump and electricity
Machine, the second power set 204 are used for the power that pressure and circulation are provided for coolant.
With reference to Fig. 1, cooling cycle subsystem 2 can include：Second chiller 202, it is right that the second chiller 202 is used for
The coolant flowed out from coolant flow channel is cooled down, and COOLANT TEMPERATURE can be avoided to produce large effect to cooling system.
Alternatively, the second chiller 202 includes water cooling unit.
With reference to Fig. 1, cooling cycle subsystem 2 can include：Second control device 205, second control device 205 are used to control
System flows to the pressure and flow of the coolant of coolant flow channel from the second storage device 203.Alternatively, second control device 205 is wrapped
Pressure-control valve and flow control valve are included, so as to 205 simple structure of second control device, installs easy.
With reference to Fig. 1, cooling cycle subsystem 2 can include：3rd detection display device 206, the 3rd detection display device
The change of 206 pressure, temperature and flow for being used for the coolant for detecting inflow coolant flow channel such that it is able to real-time detection to second
Whether the coolant that control device 205 is discharged reaches predetermined pressure, temperature and flow.Show in the 3rd detection display device 206
After showing testing result, controlled quentity controlled variable of second control device 205 etc. can be adjusted according to testing result, it is also possible to according to testing result
Adjust the cooling degree of the second chiller 202.
With reference to Fig. 1, cooling cycle subsystem 2 can include：4th detection display device 201, the 4th detection display device
The change of 201 pressure, temperature and flow for being used for the coolant that detection is flowed out from coolant flow channel.In such manner, it is possible to real-time detection is arrived
The pressure of coolant, temperature and flow that coolant flow channel is discharged, after the 4th detection display device 201 shows testing result, can
So that controlled quentity controlled variable of second control device 205 etc. is adjusted according to testing result, it is also possible to according to testing result adjustment the second cooling dress
Put 202 cooling degree.
Alternatively, the 3rd detection display device 206 and the 4th detection display device 201 include respectively：Pressure transducer, temperature
Degree sensor, effusion meter and pressure gauge.
In addition, main driving seal pressure control system can also include alarm device, when main driving seal pressure control system
When system breaks down, alarm device can be reported to the police to remind operator to investigate failure in time, in order to the driving of development machine
Everything goes well with your work is carried out.
Below according to a specific embodiment shown in Fig. 1, main driving seal pressure control system in the embodiment is described
Concrete structure.
In the embodiment, main driving seal pressure control system includes：Sealing oil pressure control subsystem 1 and cooling circulation
Subsystem 2, sealing oil pressure control subsystem 1 include：First power set 103, the detection of first control device 105, first are aobvious
The detection display device 101 of showing device 106, second, the first chiller 104 and the first storage device 102, cool down cycle subsystem
2 include：Second power set 204, the detection detection display device of display device the 206, the 4th of second control device the 205, the 3rd
201st, the second chiller 202 and the second storage device 203.
As shown in figure 1, in the main driving seal pressure control system of the embodiment, according to oil circulation direction, Seal Oil
Pressure control subsystem 1 is sequentially connected order：Second 101 → the first storage device of detection display device, 102 → the first power
103 → the first 104 → first control device of chiller of device 105 → the first detects display device 106.First detection shows dress
Put 106 and second and detect that display device 101 mainly has pressure transducer, temperature sensor, effusion meter and pressure gauge, the first detection
Display device 106 is installed near the import of sealing runner, near exit peace of the second detection display device 101 near sealing runner
Dress.First storage device 102 includes oil storage tank, and the first power set 103 include pump and motor, and first control device 105 includes
Pressure-control valve and flow control valve, the first chiller 104 include oil cooling machine.
As shown in figure 1, in the main driving seal pressure control system of the embodiment, according to water circulation direction, cooling circulation
Subsystem 2 be sequentially connected order for 202 → the second storage device 203 of the 4th detection display device 201 → the second chiller →
Second 204 → second control device of power set the 205 → the 3rd detects display device 206.3rd detection display device 206 and the
Four detection display devices 201 mainly have pressure transducer, temperature sensor, effusion meter and pressure gauge, the 3rd detection display device
206 near coolant flow channel import install, the 4th detection display device 201 near coolant flow channel near exit install.Second
Storage device 203 includes aqua storage tank, and the second power set 204 include pump and motor, and second control device 205 includes Stress control
Valve and flow control valve, the second chiller 202 include water cooling unit.
In this embodiment, sealing oil pressure control subsystem 1 is the pressure to the main seal grease for driving sealing structure 3
The system for being detected and being controlled, cools down cycle subsystem 2 and mainly drives sealing knot to main by controlling the flow of coolant
The temperature of the seal grease of structure 3 is cooled down and is adjusted.
A kind of control method that driving owner drives seal pressure control system, the control method are described referring to Fig. 1
Can be used to control the sealing oil pressure control subsystem 1 that driving owner drives seal pressure control system, also can control cooling and follow
Loop subsystems 2.
The run time of development machine is divided into multiple cycle of operations, and the control method includes following step in each cycle of operation
Suddenly：
When the oil pressure and first that the first detection display device 106 or the second detection display device 101 are detected sets pressure
The difference of value more than the first preset pressure difference when, 105 action of first control device with reduce seal runner oil pressure；
When the oil pressure and first that the first detection display device 106 or the second detection display device 101 are detected sets pressure
When the difference of value is less than or equal to the first preset pressure difference, first control device is failure to actuate, it is ensured that oil pressure is stable.
The temperature detected when the 3rd detection display device 206 or the 4th detection display device 201 and set temperature value
When difference is more than preset temperature difference, 205 action of second control device is cooling down to coolant flow channel；
The temperature detected when the 3rd detection display device 206 or the 4th detection display device 201 and set temperature value
When difference is less than or equal to preset temperature difference, second control device 205 is failure to actuate, to keep seal grease temperature normal.
So, seal the sum that oil pressure can be poor not over the first setup pressure value and the first preset pressure in runner
Value, in sealing runner, oil temperature is poor not over set temperature value and preset temperature and is worth.
In the development machine that this utility model is referred to, the main driving sealing structure 3 of some development machines can be using as shown in Figure 2
Multiple-sealed structure.It is appreciated that in development machine cutterhead be rotate, driver element be it is fixed, cutterhead with drive
There is between unit relative motion.Arrange between cutterhead and driver element by multiple-sealed ring group into multiple-sealed structure, can
Strengthen sealing effectiveness.
Accordingly, the main this multiple-sealed structure of structure correspondence for driving seal pressure control system will have adaptability to become
Change.
As shown in Fig. 2 main driving sealing structure 3 includes 301 to the n-th road sealing ring 30n of the 1st road sealing ring, runner is sealed
Including (n+1) road seal oil chamber, the side of the main outside for driving sealing structure 3 of direction of the 1st road sealing ring 301 limits the 1st
2. 1. road seal oil chamber, limit the 2nd road seal oil chamber between the 1st road sealing ring 301 and the 2nd road sealing ring 302, successively class
Push away, between (n-1) road sealing ring and the n-th road sealing ring 30n, limit the n-th road seal oil chamberN-th road sealing ring 30n's
(n+1) road seal oil chamber is limited towards the side of the main inside for driving sealing structure 3From the 2nd road seal oil chamber 2. to
N-th road seal oil chamberIt is intermediate seal oil pocket.
In corresponding sealing oil pressure control subsystem 1, first control device 105 is used for control and is flowed in the middle of per pass respectively
The pressure and flow of the seal grease of seal oil chamber, the first detection display device 106 are used for close in the middle of at least detection inflow per pass
The change of the pressure, temperature and flow of the seal grease in oil sealing chamber, the second detection display device 101 are used at least detect from per pass
The change of the pressure, temperature and flow of the seal grease that intermediate seal oil pocket flows out.
Alternatively, first control device 105 can be used for control to flow to the 1st road seal oil chamber 1. close with (n+1) road
Oil sealing chamberSeal grease oil mass.Alternatively, the first detection display device 106 and the second detection display device 101 also may be used
For detect inflow and outflow the 1st road seal oil chamber 1. with (n+1) road seal oil chamberThe pressure of seal grease, temperature
With the change of flow.
Wherein, first control device 105 can control the seal grease for flowing to each road intermediate seal oil pocket oil pressure and
Flow.After the first detection display device 106 shows pressure, temperature and the flow of some seal oil chamber, can be according to detection
As a result adjust controlled quentity controlled variable of first control device 105 etc. so that the oil pressure and oil mass of the seal oil chamber is adjusted.When the second inspection
Survey after display device 101 shows the pressure of some seal oil chamber, temperature and flow, it is also possible to according to testing result adjustment the
Controlled quentity controlled variable of one control device 105 etc. so that the oil pressure of the seal oil chamber, oil mass are adjusted.
Alternatively, in so multiple-sealed main driving sealing structure 3, cooling cycle subsystem 2 can be close to per pass
Oil sealing chamber carries out cooling temperature control.For example, coolant flow channel may include multiple tracks cooling chamber, and multiple tracks cooling chamber is with multiple-sealed oil pocket one by one
It is correspondingly arranged.So, when the flow of a certain cooling chamber is controlled, can just control to should cooling chamber seal oil chamber oil temperature.
For the main main driving seal pressure control system for driving sealing structure 3 that there is multiple-sealed oil pocket, the system
In control method, there can be the part for being used to controlling sealing oil pressure control subsystem 1, can also have and circulate for controlling cooling
The part of subsystem 2.This control system at least has two kinds of control methods.
The first control method as shown in figure 3, the run time of development machine is divided into multiple cycle of operations, in each operation week
In phase, comprise the steps：
When the first detection display device 106 or the second detection display device 101 detect the pressure P of i-th seal oil chamberi
With the difference (P of setting pressure Pi- P) more than preset value △ Ps when, first control device 105 control flow to i-th seal oil chamber
Oil liquid pressure, to it is main drive sealing structure 3 i-th seal oil chamber import oiling, wherein, i-th seal oil chamber is at least
Can be any one in intermediate seal oil pocket；
When the first detection display device 106 or the second detection display device 101 detect the pressure P of i-th seal oil chamberi
With the difference (P of setting pressure Pi- P) less than or equal to preset value △ Ps when, first control device 105 is failure to actuate, keep fluid pressure
Power is stable.
When the 3rd detection display device 206 or the 4th detection display device 201 detect temperature T of i-th seal oil chamberi
With the difference (T of design temperature Ti- T) more than preset value △ Ts when, second control device 205 control flow direction correspondence i-th sealing
The coolant rate of the cooling chamber of oil pocket, cools down to main i-th seal oil chamber for driving sealing structure 3；
When the 3rd detection display device 206 or the 4th detection display device 201 detect temperature T of i-th seal oil chamberi
With the difference (T of design temperature Ti- T) less than or equal to preset value △ Ts when, second control device 205 is failure to actuate, keep fluid temperature
Degree is normal.
For the main main driving seal pressure control system for driving sealing structure 3 that there is multiple-sealed oil pocket, the system
Another kind of control method comprises the steps：
From the 1st road seal oil chamber oil pressure P 1.1To (n+1) road seal oil chamberOil pressure Pn+1, first control device
The oil pressure of 105 control (n+1) road seal oil chambers successively decreases successively, to meet relational expression：P1＞ P2＞ P3... ＞ Pn＞ Pn+1, and meet
P1—P2=P2—P3=... ﹦ Pn—Pn+1；
Setting P1—P2=△ P, when △ P are detected more than or less than the second preset pressure difference, first control device is moved
Make so that △ P gradually to tend to the second preset pressure poor；When detecting that △ P are equal to the second preset pressure difference, first control device
105 are failure to actuate.
It is understood that the main driving sealing structure 3 of development machine is according to multiple-sealed structure, per pass sealing ring bears
Limited pressure, i.e. the pressure difference value in the front/back cavity of sealing ring has maximum △ Pmax.If the front/back cavity of sealing ring
Pressure differential fails more than △ Pmax, the sealing property of sealing ring.Therefore, it is to ensure reliable and stable per pipeline sealing property, it is necessary to control
Before and after sealing ring processed, cavity pressure difference △ P is less than the pressure limit value △ Pmax that sealing ring bears, and the change of △ P is one
In fixed range of error.
Further, since by the 1st road sealing ring 301, the 2nd road sealing ring 302, the 3rd road sealing ring 303, the 4th road sealing ring
304th ... ecto-entad is arranged the i-th the n-th road of road sealing ring ... sealing ring 30n successively, the 1st road seal oil chamber 1. with ft connection,
1st road seal oil chamber 1. with outside identical pressure P1, (n+1) road seal oil chamberConnect with inside, (n+1) road
Seal oil chamberWith with internal identical pressure Pn+1.Remaining the 2nd road seal oil chamber 2., the 3rd road seal oil chamber 3., the 4th road
Seal oil chamber is 4. ... the n-th road seal oil chamberIntermediate seal oil pocket is, the pressure of intermediate seal oil pocket can be by the first control
Device 105 is controlled respectively.First control device 105 can be controlled the pressure from each intermediate seal oil pocket to P respectively2、P3、
P4…Pi…Pn, and P1＞ P2＞ P3＞ P4... ＞ Pi... ＞ Pn.Pressure differential to ensure per pass seal ring structure is stable, can control
The pressure of intermediate seal oil pocket processed disclosure satisfy that condition：P1—P2=P2—P3=P3—P4... ﹦ Pi—Pi+1... ﹦ Pn—Pn+1﹦ △ P,
And △ P ﹤ △ Pmax.
Detect that display device 101 and 105 pairs of centres of first control device are close by the first detection display device 106 and second
The pressure differential △ P and setting value △ Ps of envelope runner is compared, as △ P ＞ △ Ps, during first control device 105 is controlled respectively
Between seal oil chamber pressure increase, and to it is main drive sealing structure 3 sealing runner oiling, △ P is reduced and is moved closer to △
Ps；As △ P ＜ △ Ps, the pressure of the control intermediate seal oil pocket of first control device 105 reduces, and to main driving sealing structure
3 seal oil chamber oiling, makes △ P increase and move closer to △ Ps.By pressure before and after the controllable per pass sealing ring of the method
Difference is in a rational scope, it is to avoid the sealing that the pressure that sealing ring bears is caused beyond the back pressure limit of sealing ring itself
Ring seal failure problem.
Using multiple-sealed oil pressure force control method, make main driving sealing bear the larger external pressure being actually needed,
So as to be prevented effectively from the existing main defect for driving the control of sealing structure 3.
It is understood that the main structure and its control method for driving seal pressure control system can in the above-described embodiments
Adaptive adjustment is carried out, it is specific as follows：
(1) structural principle of the main driving seal pressure control system of the technical program, not only only includes above-mentioned word and is situated between
Continue the device of explanation, and can also can set up expanding unit and its auxiliary auxiliary facility in the case where being actually needed.
(2) no matter which kind of mode is main driving sealing structure 3 adopt, as long as in order to reach main driving sealing bear it is outside compared with
Big pressure, adopts the method same or like with the multiple-sealed oil pressure force control method of the technical program, extends also to
N-th road is sealed, until last sealing together can bear less back pressure, in protection domain of the present utility model.
(3) control method of the technical program is the effective control to Control system architecture, in addition, as long as with realization
The close control method of the main this utility model purpose for driving sealing to bear larger external pressure is in protection of the present utility model
In the range of.
(4), in seal pressure control system, the device of sealing oil pressure control subsystem 1 and cooling cycle subsystem 2 connects
Connect order not constrained by the order of connection described in the above-mentioned word of this utility model, as long as the purpose of this utility model can be realized
The device order of connection is in this utility model protection domain.
In the description of this specification, the description of reference term " embodiment ", " example " etc. mean with reference to the embodiment or
Specific features, structure, material or the feature that example is described is contained at least one embodiment of the present utility model or example.
In this manual, identical embodiment or example are not necessarily referring to the schematic representation of above-mentioned term.And, description
Specific features, structure, material or feature can be tied in one or more any embodiment or example in an appropriate manner
Close.
While there has been shown and described that embodiment of the present utility model, it will be understood by those skilled in the art that：
Various changes, modification, replacement can be carried out to these embodiments in the case of without departing from principle of the present utility model and objective
And modification, scope of the present utility model limited by claim and its equivalent.
Claims (9)
1. a kind of driving owner drives seal pressure control system, and the main driving sealing structure of development machine has can fill Seal Oil
The sealing runner of fat, the main driving sealing structure also has can fill coolant and for cooling down to the sealing runner
Coolant flow channel, it is characterised in that main driving seal pressure control system includes that sealing oil pressure control subsystem and cooling are followed
Loop subsystems, the sealing oil pressure control subsystem are suitable to be connected close in the sealing runner to control with the sealing runner
The pressure of oil sealing fat, the cooling cycle subsystem are suitable to be connected to provide cooling to the coolant flow channel with the coolant flow channel
Liquid to reduce the temperature of seal grease, wherein,
The sealing oil pressure control subsystem includes：First power set, first control device, the first storage device, first
Detection display device and the second detection display device, first power set are used to drive seal grease in the sealing runner
Flow and first storage device between, it is described from first storage device flow direction that the first control device is used for control
The pressure and flow of the seal grease of sealing runner, the first detection display device are used to detect the inflow sealing runner
The change of the pressure, temperature and flow of seal grease, the second detection display device are used for detection from the sealing runner stream
The change of the pressure, temperature and flow of the seal grease for going out.
2. driving owner according to claim 1 drives seal pressure control system, it is characterised in that the sealing oil pressure
Power control subsystem also includes：First chiller, first chiller is for close to what is flowed out from the sealing runner
Oil sealing fat is cooled down.
3. driving owner according to claim 1 drives seal pressure control system, it is characterised in that first power
Device includes pump and motor, and the first control device includes pressure-control valve and flow control valve.
4. driving owner according to claim 1 drives seal pressure control system, it is characterised in that first detection
Display device and the second detection display device include respectively：Pressure transducer, temperature sensor, effusion meter and pressure gauge.
5. driving owner according to claim 2 drives seal pressure control system, it is characterised in that first cooling
Device includes oil cooling machine.
6. the driving owner according to any one of claim 1-5 drives seal pressure control system, it is characterised in that institute
Stating main driving sealing structure includes the 1st road sealing ring to the n-th road sealing ring, and the sealing runner includes (n+1) road seal oil chamber,
The side of the direction of the 1st road sealing ring main outside for driving sealing structure limits the 1st road seal oil chamber, and described the
The 2nd road seal oil chamber is limited between 1 road sealing ring and the 2nd road sealing ring, the like, (n-1) road sealing ring and the n-th road
The n-th road seal oil chamber, on the inside of the direction main driving sealing structure of n-th road sealing ring are limited between sealing ring
Lateral spacing makes (n+1) road seal oil chamber, is intermediate seal to n-th road seal oil chamber from the 2nd road seal oil chamber
Oil pocket, in the corresponding sealing oil pressure control subsystem,
The first control device is used at least control to flow to the pressure of the seal grease of intermediate seal oil pocket described in per pass respectively
And flow, pressure of the first detection display device for the seal grease of intermediate seal oil pocket at least described in detection inflow per pass
The change of power, temperature and flow, the second detection display device are used at least detect from intermediate seal oil pocket stream described in per pass
The change of the pressure, temperature and flow of the seal grease for going out.
7. the driving owner according to any one of claim 1-5 drives seal pressure control system, it is characterised in that institute
Stating cooling cycle subsystem includes：Second power set, the second chiller, the second storage device, second control device, the 3rd
Detection display device and the 4th detection display device, second power set be used to driving coolant in the coolant flow channel and
Flow between second storage device, second chiller is carried out for the coolant to flowing out from the coolant flow channel
Cooling, the 3rd detection display device are used for pressure, temperature and the flow of the coolant for detecting the inflow coolant flow channel
Change, the 4th detection display device are used for pressure, temperature and the flow of the coolant that detection is flowed out from the coolant flow channel
Change, the second control device be used for control flow to from second storage device coolant flow channel coolant pressure
Power and flow.
8. driving owner according to claim 7 drives seal pressure control system, it is characterised in that second cooling
Device includes water cooling unit.
9. driving owner according to claim 7 drives seal pressure control system, it is characterised in that second power
Device includes pump and motor, and the second control device includes pressure-control valve and flow control valve, and the 3rd detection shows
Device and the 4th detection display device include respectively：Pressure transducer, temperature sensor, effusion meter and pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974902.XU CN206072344U (en) | 2016-08-30 | 2016-08-30 | Driving owner drives seal pressure control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620974902.XU CN206072344U (en) | 2016-08-30 | 2016-08-30 | Driving owner drives seal pressure control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206072344U true CN206072344U (en) | 2017-04-05 |
Family
ID=58433573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620974902.XU Withdrawn - After Issue CN206072344U (en) | 2016-08-30 | 2016-08-30 | Driving owner drives seal pressure control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206072344U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195272A (en) * | 2016-08-30 | 2016-12-07 | 中国铁建重工集团有限公司 | Driving owner drives seal pressure control system and control method thereof |
| CN110656940A (en) * | 2019-09-30 | 2020-01-07 | 中国铁建重工集团股份有限公司 | Shaft heading machine and main drive sealing system thereof |
| CN111810825A (en) * | 2020-07-21 | 2020-10-23 | 中铁工程装备集团有限公司 | Lubricating and sealing system of heading machine |
| CN113864457A (en) * | 2021-10-09 | 2021-12-31 | 中铁工程装备集团有限公司 | Main drive sealing system |
-
2016
- 2016-08-30 CN CN201620974902.XU patent/CN206072344U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106195272A (en) * | 2016-08-30 | 2016-12-07 | 中国铁建重工集团有限公司 | Driving owner drives seal pressure control system and control method thereof |
| CN110656940A (en) * | 2019-09-30 | 2020-01-07 | 中国铁建重工集团股份有限公司 | Shaft heading machine and main drive sealing system thereof |
| CN111810825A (en) * | 2020-07-21 | 2020-10-23 | 中铁工程装备集团有限公司 | Lubricating and sealing system of heading machine |
| CN113864457A (en) * | 2021-10-09 | 2021-12-31 | 中铁工程装备集团有限公司 | Main drive sealing system |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170405 Effective date of abandoning: 20180223 |