CN102359351B

CN102359351B - Hydraulic control system for continuous pipe tripping device

Info

Publication number: CN102359351B
Application number: CN 201110310318
Authority: CN
Inventors: 刘德铸; 张洪君; 王晓华; 杨志祥; 宋志军; 李广富
Original assignee: China Petroleum and Natural Gas Co Ltd
Current assignee: China Petroleum and Natural Gas Co Ltd
Priority date: 2011-10-13
Filing date: 2011-10-13
Publication date: 2013-10-16
Anticipated expiration: 2031-10-13
Also published as: CN102359351A

Abstract

The invention discloses a hydraulic control system for a continuous pipe tripping device, and the hydraulic control system comprises a rotary drum and cable-alignment hydraulic system, an injection head hydraulic system, a dragger hydraulic system and an oil tank, wherein the oil tank is provided with an oil outlet end for outputting hydraulic oil and an oil return end for returning the hydraulicoil; and the rotary drum and cable-alignment hydraulic system, the injection head hydraulic system and the dragger hydraulic system are connected between the oil outlet end and the oil outlet end in parallel. The rotary drum and cable-alignment hydraulic system, the injection head hydraulic system and the dragger hydraulic system are jointly connected to the oil tank in parallel and share one oiltank, synchronous actions or respective actions of the rotary drum, a dragger and an injection head are realized and not influenced mutually, thus the hydraulic system is convenient and flexible in regulation; and the arrangement of the oil tank is reduced, the demands on vehicles for bearing the oil tank are reduced, the maneuverability and coordination of the rotary drum, the dragger and the injection head are increased, the volume of the hydraulic control system for the continuous pipe tripping device and the volume of the continuous pipe tripping device are reduced, and the consumption ofthe hydraulic oil is reduced and the cost is lowered.

Description

Hydraulic control system for continuous pipe tripping device

Technical field

The present invention relates to the oil recovery machiner field, belong to a kind of hydraulic control system for continuous pipe tripping device.

Background technology

Continuous pipe tripping device is the large-scale plant to the down-hole input oil pipe, mainly comprise cylinder, tractor, the first-class parts of injection, continuous-tube is wrapped on the cylinder as row's cable, traction by tractor, continuous-tube pulls out from cylinder as cable laying, and the blowout prevention box, the preventer that pass well head by injection head enter into the down-hole.Existing continuous pipe tripping device cylinder, tractor and injection head are respectively by separate HYDRAULIC CONTROL SYSTEM, so that continuous pipe tripping device need to be comprised of a plurality of separate hydraulic systems generally, because cylinder (comprising the row's cable on the cylinder), tractor and injection head are main equipment, cylinder, the hydraulic control system of tractor and injection head also needs large-scale fuel tank and hydraulic power source system to support, so, cylinder, the hydraulic control system of tractor and injection head also needs to be separately positioned on the independent vehicle, cause like this hydraulic control system of existing continuous pipe tripping device bulky, need to be cooperated by many vehicle supports and cooperation and could realize normal operation, increase like this cost of manufacture, increased the difficulty of transportation, cooperation between each parts of inconvenience cooperates.

Summary of the invention

The invention provides a kind of hydraulic control system for continuous pipe tripping device, arrange separately respectively with each subsystem in the hydraulic control system that solves existing continuous pipe tripping device, cause the hydraulic control system of continuous pipe tripping device bulky, the problems such as cost is high, difficult coordination.

For this reason, the present invention proposes a kind of hydraulic control system for continuous pipe tripping device, comprise: cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5 and a fuel tank 1, described fuel tank 1 has the oil outlet end of output hydraulic pressure oil and the oil revolving end of oil return, and described cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5 are connected in parallel between described oil outlet end and the described oil revolving end.

Further, described hydraulic control system for continuous pipe tripping device is arranged on the car.

Further, described hydraulic control system for continuous pipe tripping device also comprises: the blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10, the arm that are connected in parallel between described oil outlet end and the described oil revolving end hang hydraulic system 11 and supporting leg hydraulic system 13.

Further, described hydraulic control system for continuous pipe tripping device also comprises: and described injection head hydraulic system 4 is connected in parallel on the control room lifting hydraulic system 7 between described oil outlet end and the described oil revolving end.

Further, described oil outlet end comprises: the first oil outlet end and the second oil outlet end, described oil revolving end is one, and described cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5 are connected in parallel between described the first oil outlet end and the described oil revolving end.

Further, described blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10, arm hang hydraulic system 11 and supporting leg hydraulic system 13 is connected in parallel between described the second oil outlet end and the described oil revolving end.

Further, described the first oil outlet end connects described cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5 and control room lifting hydraulic system by the first banked direction control valves group 3.

Further, be provided with the first hydraulic power source system 201 between described the first banked direction control valves group 3 and described the first oil outlet end.

Further, described injection head hydraulic system 4 comprises: injection head pressing system, injection head mobile system, injection head drive system and injection head oscillation system in parallel; Described tractor hydraulic system 5 comprises: tractor drives system, tractor pressing system and tractor clamping system in parallel; Described cylinder and row's cable hydraulic system comprise: row in parallel pulls drive system and drum driven system;

Described the first banked direction control valves group 3 forms by ten monolithic solenoid-operated proportional banked direction control valves are in parallel, described the first hydraulic power source system 201 has oil-out P1 and oil return opening L1, described the first banked direction control valves group 3 has the connector P3 that is connected with described oil-out P1 and the connector L3 that is connected with described oil return opening L1, and described ten monolithic solenoid-operated proportional banked direction control valves are connected in parallel between described connector P3 and the described connector L3;

Each banked direction control valves in described ten monolithic solenoid-operated proportional banked direction control valves connects one to one respectively described injection head pressing system, injection head mobile system, injection head drive system and injection head oscillation system, described tractor drives system, tractor pressing system and tractor clamping system, described row and pulls drive system and drum driven system and described control room lifting hydraulic system.

Further, described blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10, arm hang hydraulic system 11 and supporting leg hydraulic system 13 is connected between described the second oil outlet end and the described oil revolving end by the second banked direction control valves group, is provided with the second hydraulic power source system 202 between described the second banked direction control valves group and described the second oil outlet end.

Further, described the second banked direction control valves group comprises: the first control valve group 15, the second control valve group 14 and the 3rd control valve group 12, the first end of described the first control valve group 15 connects described the second hydraulic power source system 202, the second end of described the first control valve group 15 connects the arrival end of described the second control valve group 14, the 3rd end of described the first control valve group 15 connects the arrival end of described the 3rd control valve group 12, is provided with the change-over switch of the arrival end of the arrival end that switch to connect described the second control valve group 14 or described the 3rd control valve group 12 in described the first control valve group 15;

The port of export of described the second control valve group 14 connects described supporting leg hydraulic system 13, and described blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10 and arm hang on the port of export that hydraulic system 11 is connected in parallel on respectively described the 3rd control valve group 12.

Further, described the second hydraulic power source system 202 has oil-out P2 and oil return opening L2; Described the second banked direction control valves group comprises: the first control valve group that is formed by 1 banked direction control valves, by 5 banked direction control valves the second control valve group that forms in parallel and the 3rd control valve group that formed by 7 banked direction control valves parallel connections;

Described the first control valve group has four connectors, be respectively connector P4, connector L4, connector P5 and connector P6, described connector P4 connects described oil-out P2, described connector L4 is connected with described oil return opening L2, is provided with the change-over switch that connects described connector P4 and described connector P5 or be connected described connector P4 and connector P6 in described the first control valve group;

Described the second control valve group has the connector P8 that is connected with described connector P6 and the connector L8 that is connected with described connector L4;

Described the 3rd control valve group has the connector L7 that is connected with described connector L4 and the connector L7 that is connected with described connector P5;

Described supporting leg hydraulic system 13 comprises: left front supporting leg hydraulic system, right front supporting leg hydraulic system, left back supporting leg hydraulic system, right back supporting leg hydraulic system and main landing leg stretching hydraulic system, described the second control valve group comprise left front Multi-way valve with support leg 119, right front Multi-way valve with support leg 120, left back Multi-way valve with support leg 121, right back Multi-way valve with support leg 122 and the main landing leg stretching banked direction control valves 123 of successively series connection;

Described left front Multi-way valve with support leg 119 correspondences are connected on the described left front supporting leg hydraulic system, described right front Multi-way valve with support leg 120 correspondences are connected on the described right front supporting leg hydraulic system, described left back Multi-way valve with support leg 121 correspondences are connected on the described left back supporting leg hydraulic system, described right back Multi-way valve with support leg 122 correspondences are connected on the described right back supporting leg hydraulic system, and described main landing leg stretching banked direction control valves correspondence is connected on the described main landing leg stretching hydraulic system.

Further, described the 3rd control valve group comprises: arm hangs luffing banked direction control valves 107, arm and hangs flexible banked direction control valves 108, preventer and partly seal banked direction control valves 109, preventer and entirely seal banked direction control valves 110, preventer slips banked direction control valves 111, preventer and shear banked direction control valves 112, blowout prevention box banked direction control valves 113; Described arm hangs hydraulic system 11 and comprises: arm hangs variable amplitude hydraulic system and arm hangs flexible hydraulic system; Described blowout preventer hydraulic system 10 comprises: preventer half sealing liquid pressing system, the full sealing liquid pressing system of preventer, preventer slip hydraulic system and preventer are sheared hydraulic system;

Described arm hangs the described arm of luffing banked direction control valves 107 connections and hangs variable amplitude hydraulic system, described arm hangs the described arm of flexible banked direction control valves 108 connections and hangs flexible hydraulic system, preventer partly seals banked direction control valves 109 and connects described preventer half sealing liquid pressing system, described preventer entirely seals banked direction control valves 110 and connects the full sealing liquid pressing system of described preventer, the described preventer slip hydraulic of described preventer slips banked direction control valves 111 connections system, described preventer is sheared banked direction control valves 112 and is connected described preventer shearing hydraulic system, and described blowout prevention box banked direction control valves 113 connects described blowout prevention box hydraulic system.

Because hydraulic control system for continuous pipe tripping device of the present invention is with cylinder and row's cable hydraulic system, the injection head hydraulic system, the tractor hydraulic system is parallel-connected on the fuel tank jointly, so these several sub-hydraulic systems can share a fuel tank, realized cylinder, tractor, injection head three synchronization action or separately action, be independent of each other, easy to adjust flexible, reduced the setting of fuel tank, the needs of the vehicle of carrying fuel tank have been reduced, increased cylinder, tractor, the mobility of injection head and harmony, the volume of hydraulic control system for continuous pipe tripping device and the volume of continuous pipe tripping device have been reduced, reduce the use of hydraulic oil, reduced cost.

Further, control room lifting hydraulic system and cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5 are connected in parallel between described oil outlet end and the described oil revolving end jointly, need not to arrange for the control room separately again the hydraulic power source system of a fuel tank and control, simplify the structure.

In addition, the present invention is when adopting a fuel tank and oil revolving end, make respectively cylinder and row's cable hydraulic system, the injection head hydraulic system, tractor hydraulic system and control room lifting hydraulic system share first a hydraulic power source system, blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10, arm hangs hydraulic system 11 and supporting leg hydraulic system 13 shares second a hydraulic power source system, prevents that the hydraulic power source system that hydraulic control system for continuous pipe tripping device only adopts a hydraulic power source system to bring from easily damaging, the problem of all sub-hydraulic systems paralysis that cause owing to the damage of hydraulic power source system.Simultaneously, such setting also cleverly balance the power relation of each sub-hydraulic system, the use of each hydraulic power source system of balance and each fluid pressure line is conducive to the general safety of hydraulic control system for continuous pipe tripping device.

And then, the oil circuit that is used for control the second control valve group 14 and the 3rd control valve group 12 with the first control valve group 15 switches, can realize control, the conversion of priority action relationships and the corresponding synchronization action relation of each sub-hydraulic system, realize the coordination of each subsystem such as leg system, arm crane system.Both guaranteed the coordination control of hydraulic control system for continuous pipe tripping device for the action relationships of leg system inside, guaranteed also that simultaneously hydraulic control system for continuous pipe tripping device is for the arm crane system, the control of the action relationships of blowout preventer hydraulic system and blowout prevention box hydraulic system, so that supporting leg stable after, the arm crane system, blowout preventer hydraulic system and blowout prevention box hydraulic system could be moved, in order to avoid at the arm crane system, when blowout preventer hydraulic system and the action of blowout prevention box hydraulic system, unstable and the overturn accident that brings of supporting leg, also so that the arm crane system, when blowout preventer hydraulic system and the action of blowout prevention box hydraulic system, supporting leg no longer moves, guaranteed the arm crane system, the safety of blowout preventer hydraulic system and the action of blowout prevention box hydraulic system and stable, realized sharing a fuel tank, the coordination of each system in the situation of a shared car.

Description of drawings

Fig. 1 is the overall structure schematic diagram according to the hydraulic control system for continuous pipe tripping device of the embodiment of the invention;

Fig. 2 is the structural representation according to the hydraulic power source system of the embodiment of the invention;

Fig. 3 is the structural representation according to the first banked direction control valves group of the embodiment of the invention;

Fig. 4 is the structural representation according to the injection head hydraulic system of the embodiment of the invention;

Fig. 5 is the structural representation according to the tractor hydraulic system of the embodiment of the invention;

Fig. 6 is the structural representation according to the cylinder of the embodiment of the invention and row's cable hydraulic system;

Fig. 7 is the structural representation according to the control room lifting hydraulic system of the embodiment of the invention;

Fig. 8 is the structural representation according to the second banked direction control valves group of the embodiment of the invention;

Fig. 9 is the structural representation according to the supporting leg hydraulic system of the embodiment of the invention;

Figure 10 is for to hang the structural representation of hydraulic system according to the arm of the embodiment of the invention;

Figure 11 is the structural representation according to blowout preventer hydraulic system and the blowout prevention box hydraulic system of the embodiment of the invention.

The drawing reference numeral explanation:

Among Fig. 1: the 1-fuel tank, 3-the first banked direction control valves group, 4-injection head hydraulic system, 5-tractor hydraulic system, 6-cylinder and row's cable hydraulic system, 7-control room lifting hydraulic system, the 8-bleed off pipe, 9-blowout prevention box hydraulic system, 10-blowout preventer hydraulic system, the 11-arm hangs hydraulic system, 12-7 sheet banked direction control valves, 13-supporting leg hydraulic system, 14-5 sheet banked direction control valves, 15-1 sheet banked direction control valves, 201-the first hydraulic power source system, 202-the second hydraulic power source system, 1001-the first oil outlet end, 1002-the second oil outlet end, the 810-oil revolving end.

Among Fig. 2: 16-liquid level liquid thermometer, 17-electric heater, 18-return filter, the 19-air filter, 20-return filter, 21-beam, the 22-beam, 23-air cooler, 24-one way valve, the 25-air cooler, 26-one way valve, 27-shaft coupling, the 28-Variable plunger pump, 29-shaft coupling, 30-Variable plunger pump, the 31-high pressure filter, 32-one way valve, 33-high pressure filter, the 34-one way valve, 35-pressure meter, 36-pressure meter switch, the 37-overflow valve, the 38-pressure meter switch, 39-overflow valve, 40-overflow valve, the 41-overflow valve, P1, L1, P2 and L2 are interface.

Among Fig. 3: the 42-injection head compresses banked direction control valves, the 43-injection head moves banked direction control valves, the 44-injection head drives banked direction control valves, and the 45-injection head swings banked direction control valves, 46-tractor drives banked direction control valves, the 47-tractor compresses banked direction control valves, 48-tractor tensioning banked direction control valves, 49-row cable banked direction control valves, 50-drum driven banked direction control valves, 51-control room lifting banked direction control valves, P3, L3 and A1, A2, B1, B2 to J1, J2 are interface.

Among Fig. 4: 52-choke valve, 53-reducing valve, 54-overflow valve, 55-injection head compressed oil cylinder, the 56-choke valve, 57-injection head Shift cylinder, 58-overflow valve, 59-choke valve, the 60-reducing valve, 61-injection head CD-ROM drive motor, 62-choke valve, 63-overflow valve, the 64-reducing valve, 65-pressure transmitter, 66-choke valve, 67-hydraulic lock, 68-injection head oscillating oil cylinder, A3, A4, B3, B4, C3, C4, D3, D4 is interface.

Among Fig. 5: 69-reducing valve, 70-overflow valve, 71-choke valve, 72-tractor drives motor, the 73-reducing valve, 74-overflow valve, 75-flow divider-combiner, 76-choke valve, the 77-pressure transmitter, 78-choke valve, 79-overflow valve, 80-reducing valve, 81-tractor compressed oil cylinder, 82-overflow valve, 83-choke valve, 84-reducing valve, 85-tractor tensioning hydro-cylinder, E3, E4, F3, F4, G3, G4 is interface.

Among Fig. 6: 86-overflow valve, 87-overflow valve, 88-choke valve, the 89-reducing valve, 90-reducing valve, 91-row cable CD-ROM drive motor, the 92-choke valve, 93-overflow valve, 94-overflow valve, the 95-choke valve, 96-reducing valve, 97-reducing valve, 98-drum driven motor, 99-choke valve, H3, H4, I3, I4 is interface.

Among Fig. 7: the 100-choke valve, 101-two syncmotors, the 102-hydraulic lock, 103-control room elevating ram, J3, J4 is interface.

Among Fig. 8: 104-pressure meter, 105-pressure measuring tie-in, 106-overflow valve, the 107-arm hangs the luffing banked direction control valves, and the 108-arm hangs flexible banked direction control valves, and the 109-preventer partly seals banked direction control valves, the 110-preventer seals banked direction control valves entirely, 111-preventer slips banked direction control valves, and the 112-preventer is sheared banked direction control valves, 113-blowout prevention box banked direction control valves, 114-choke valve, 115-pressure meter, 116-pressure measurement flexible pipe, 117-pressure measuring tie-in, 118-overflow valve, the left front Multi-way valve with support leg of 119-, the right front Multi-way valve with support leg of 120-, the left back Multi-way valve with support leg of 121-, the right back Multi-way valve with support leg of 122-, 123-master's landing leg stretching banked direction control valves, P5, P6, P7, L7, P8, L8, K1, K2 to V1, V2 is interface.

Among Fig. 9: 124-hydraulic lock, the left front support oil cylinder of 125-, 126-hydraulic lock, the right front support oil cylinder of 127-, the 128-hydraulic lock, the left back support oil cylinder of 129-, 130-hydraulic lock, the right back support oil cylinder of 131-, the left main landing leg stretching oil cylinder of 132-, the right main landing leg stretching oil cylinder of 133-, R3, R4 to V3, V4 is interface.

Among Figure 10: the 133-choke valve, the 134-flow divider-combiner, the 135-equalizing valve, the 136-equalizing valve, the 137-arm hangs amplitude oil cylinder, the 138-choke valve, 139-two syncmotors, the 140-equalizing valve, the 141-equalizing valve, the 142-arm hangs telescopic oil cylinder, K3, K4, Y3, Y4 is interface.

Among Figure 11: 143-overflow valve, 144-reducing valve, 145-pressure meter switch, the 146-pressure meter, 147-choke valve, 148-overflow valve, the 149-reducing valve, 150-pressure meter switch, 151-pressure meter, the 152-choke valve, 153-overflow valve, 154-preventer, the 155-reducing valve, 156-pressure meter switch, 157-pressure meter, the 158-choke valve, 159-overflow valve, 160-reducing valve, the 161-pressure meter switch, 162-pressure meter, 163-choke valve, the 164-overflow valve, 165-reducing valve, 166-pressure meter switch, the 167-pressure meter, 168-blowout prevention box, 169-choke valve, M3, M4 to Q3, Q4 is interface.

Above-mentionedly respectively scheme alleged interface, be also referred to as in the text connector, comprise oil-out, oil return opening;

Oil outlet end described in the literary composition, oil-out provide the port of the hydraulic oil of high pressure, and oil revolving end and oil return opening are the ports of the hydraulic oil of low pressure

The specific embodiment

Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention.

As shown in Figure 1, according to hydraulic control system for continuous pipe tripping device of the present invention, comprise: sub-hydraulic system and fuel tanks 1 such as cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5, described fuel tank 1 has the oil outlet end (for example being the first oil outlet end 1001) of output hydraulic pressure oil and the oil revolving end 810 of oil return, to form the circulation of hydraulic oil, described cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5 are connected in parallel between described oil outlet end and the described oil revolving end.Further, described hydraulic control system for continuous pipe tripping device also comprises: and described injection head hydraulic system 4 is connected in parallel on the control room lifting hydraulic system 7 between described oil outlet end and the described oil revolving end, control room lifting hydraulic system 7 is used for the lifting in control room, be convenient to when using continuous pipe tripping device to carry out oil pipe tripping operation, lifting and decline can be carried out in the control room that the switch of the every operation function of control is housed, in order to observe the operation situation, adjust operation.For example, the cylinder rotating switch is installed in the control room, injection head moving switch, tractor moving switch etc.Control room lifting hydraulic system and cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5 are connected in parallel between described oil outlet end and the described oil revolving end jointly, need not to arrange for the control room separately again the hydraulic power source system of a fuel tank and control, simplify the structure.

Hydraulic control system for continuous pipe tripping device of the present invention is arranged on the car, for example, cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5 and a fuel tank 1 are arranged on same the automobile, fuel tank 1 is arranged on the chassis, like this, be convenient to transportation, save power, reduce volume and cost.

Further, as shown in Figure 1, described hydraulic control system for continuous pipe tripping device also comprises: the blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10, the arm that are connected in parallel between described oil outlet end (for example being the second oil outlet end 1002) and the described oil revolving end hang hydraulic system 11 and supporting leg hydraulic system 13.Blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10 are used for the control blowout prevention, and arm hangs hydraulic system 11 and hangs luffing, flexible for control arm, and supporting leg hydraulic system 13 is used for the lifting of control supporting leg, to adjust the height on chassis, satisfies job requirements.Sub-hydraulic system at different levels of the present invention drives respectively or connects corresponding drive division, for example, the injection head hydraulic system drives or the connection injection head, the blowout prevention box hydraulic system drives or the connection blowout prevention box, blowout preventer hydraulic system drive or connection preventer etc., the annexation of sub-hydraulic systems at different levels and drive division can also be with reference to prior art except description of the invention.

Further, as shown in Figure 1, described oil outlet end comprises: the first oil outlet end 1001 and the second oil outlet end 1002, described oil revolving end 810 is one, oil revolving end 810 connects bleed off pipe 8, and described cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, tractor hydraulic system 5 are connected in parallel between described the first oil outlet end 1001 and the described oil revolving end 810.Described blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10, arm hang hydraulic system 11 and supporting leg hydraulic system 13 is connected in parallel between described the second oil outlet end 1002 and the described oil revolving end 810.Like this, be convenient to the pressure of the fluid pressure line between above-mentioned each the sub-hydraulic system of balance, avoided above-mentioned each sub-hydraulic system only to adopt single oil outlet end and cause the problem of mutual interference.Certainly, blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10, arm hang hydraulic system 11 and supporting leg hydraulic system 13 also can be parallel between the first oil outlet end 1001 and the described oil revolving end 810 jointly, also can realize sharing the purpose of a fuel tank, but not as oil outlet end be set to two effective.

Further, as shown in Figure 1, described the first oil outlet end 1001 connects described cylinder and row's cable hydraulic system 6 by the first banked direction control valves group 3, injection head hydraulic system 4, tractor hydraulic system 5 and control room lifting hydraulic system 7, can guarantee that like this fuel tank 1 is fuel-displaced to cylinder and row's cable hydraulic system 6, injection head hydraulic system 4, in tractor hydraulic system 5 and the control room lifting hydraulic system 7, and from this a little hydraulic system oil return to oil revolving end 810, form hydraulic circulation, can also guarantee that this a little hydraulic system is parallel with one another, mutually noninterfere, thus cylinder and row's cable formed, injection head, synchronous or the single movement in tractor and control room.

Further, as shown in Figure 1, be provided with the first hydraulic power source system 201 between described the first banked direction control valves group 3 and described the first oil outlet end 1001.Described blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10, arm hang hydraulic system 11 and supporting leg hydraulic system 13 is connected between described the second oil outlet end 1002 and the described oil revolving end 810 by the second banked direction control valves group, is provided with the second hydraulic power source system 202 between described the second banked direction control valves group and described the second oil outlet end.By two hydraulic power source systems are set, the power that a hydraulic power source system can be born disperses, thereby reduce the power of each hydraulic power source system, reduce volume and the cost of each hydraulic power source system, reduce the suffered impact of each hydraulic power source system, thereby increased the life-span, in addition, the problem of all the sub-hydraulic systems paralysis that can also avoid only adopting a hydraulic power source system failure and cause is conducive to the general safety of hydraulic control system for continuous pipe tripping device.

As shown in Figure 2, the structure of the first hydraulic power source system 201 and the second hydraulic power source system 202 can be identical, a public fuel tank and bleed off pipe 8, be convenient to coupling and install, give respectively injection head hydraulic system 4, tractor hydraulic system 5, cylinder and row's cable hydraulic system 6, control room lifting hydraulic system 7 and blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10, arm hang hydraulic system 11, supporting leg hydraulic system 13 provides pressure source.

Take the first hydraulic power source system 201 as example, composition mainly comprises: liquid level liquid thermometer 16, electric heater 17, return filter 18, beam 21, air cooler 23, one way valve 24, shaft coupling 27, Variable plunger pump 28, high pressure filter 31, one way valve 32, pressure meter 35, pressure meter switch 36, overflow valve 37, overflow valve 40.The second hydraulic power source system 202 and the first hydraulic power source system 201 are similar, form mainly to comprise: return filter 20, beam 22, air cooler 25, one way valve 26, shaft coupling 29, Variable plunger pump 30, high pressure filter 33, one way valve 34, pressure meter switch 38, overflow valve 39, overflow valve 41.

Annexation: liquid level liquid thermometer 16, electric heater 17, return filter 18, beam 21 link to each other with fuel tank 1; Link to each other with return filter 18 after air cooler 23, one way valve 24 parallel connections; Shaft coupling 27, beam 21, link to each other with Variable plunger pump 28; High pressure filter 31, one way valve 32 and uniting with Variable plunger pump 28 links to each other; Overflow valve 37, overflow valve 40 and uniting with high pressure filter 31, air cooler 23, pressure meter switch 36 links to each other; Pressure meter switch 36 links to each other and pressure meter 35.

Be provided with electric heater 17 and air filter 19 in the fuel tank 1.During work, shaft coupling 27 drives Variable plunger pump 28 runnings, and hydraulic oil pressurizes through beam 21 entering variable plunger displacement pumps 28, then regulates Output pressure through high pressure filter 31 and by overflow valve 37, overflow valve 40, shows force value by pressure meter 35 simultaneously.Oil return is undertaken returning fuel tank 1 through return filter 18 after the cooling down by 23 pairs of high-temperature liquid force feeds of air cooler.

As shown in Figure 2, described the first hydraulic power source system 201 has oil-out P1 and oil return opening L1, as shown in Figure 3, described the first banked direction control valves group 3 forms by ten monolithic solenoid-operated proportional banked direction control valves are in parallel, described the first banked direction control valves group 3 has the connector P3 that is connected with described oil-out P1 and the connector L3 that is connected with described oil return opening L1, and described ten monolithic solenoid-operated proportional banked direction control valves are connected in parallel between described connector P3 and the described connector L3; Wherein, the oil outlet end described in the literary composition, oil-out provide the port of the hydraulic oil of high pressure, and oil revolving end and oil return opening are the ports of the hydraulic oil of low pressure.

Each banked direction control valves in described ten monolithic solenoid-operated proportional banked direction control valves connects one to one respectively described injection head pressing system, injection head mobile system, injection head drive system and injection head oscillation system, described tractor drives system, tractor pressing system and tractor clamping system, described row and pulls drive system, drum driven system and described control room lifting hydraulic system.

Annexation: the P3 of the first banked direction control valves group 3 links to each other with the L1 mouth with the P1 of the first hydraulic power source system 201 respectively with L3 interface (interface is also referred to as mouth), to obtain hydraulic pressure; In addition, each banked direction control valves is equipped with a pair of connector (being also referred to as interface or mouth), is used for connecting a pair of connector of each sub-hydraulic system, to form hydraulic circulation, for example, to shown in Figure 7, A1 links to each other with the A4 mouth with the A3 that injection head compresses hydraulic system with the A2 mouth such as Fig. 3; B1 links to each other with the B4 mouth with the B3 of injection head movable hydraulic system with the B2 mouth; C1 links to each other with the C4 mouth with the C3 of injection head drive hydraulic system principle with the C2 mouth; D1 links to each other with the D4 mouth with the D3 that injection head swings hydraulic system with D2; E1 links to each other with the E4 mouth with the E3 of tractor drives hydraulic system with the E2 mouth; F1 links to each other with the F4 mouth with the F3 that tractor compresses hydraulic system with the F2 mouth; G1 links to each other with the G4 mouth with the G3 of tractor tensioning hydraulic system with the G2 mouth; H1 links to each other with the H4 mouth with the H3 of H2 mouth with cylinder and row's cable drive hydraulic system principle; I1 links to each other with the I4 mouth with the I3 of I2 mouth with drum driven and row's cable hydraulic system; J1 links to each other with the J4 mouth with the J3 of control room lifting hydraulic system with J2.

One, 10 banked direction control valves are respectively applied to control its corresponding holding function, and can realize manual or automatically controlled and step-less adjustment control.

1, referring to Fig. 4, described injection head hydraulic system 4 comprises: injection head pressing system, injection head mobile system, injection head drive system and injection head oscillation system, this four sub-systems is connected in parallel, and is respectively applied to the function that realizes that injection head compresses, injection head moves, injection head drives, injection head swings;

The parts that described injection head hydraulic system 4 mainly comprises have: choke valve 52, reducing valve 53, overflow valve 54, injection head compressed oil cylinder 55, choke valve 56, injection head Shift cylinder 57, overflow valve 58, choke valve 59, reducing valve 60, injection head CD-ROM drive motor 61, choke valve 62, overflow valve 63, reducing valve 64, pressure transmitter 65, choke valve 66, hydraulic lock 67, injection head oscillating oil cylinder 68.

Annexation:

A, for the injection head pressing system, the A2 that the A4 mouth of choke valve 52 and the A3 mouth of oil return and injection head compress banked direction control valves 42 links to each other with the A1 mouth; Reducing valve 53 links to each other with choke valve 52, injection head compressed oil cylinder 55 and pressure meter; Another mouth of injection head compressed oil cylinder 55 links to each other with the A3 mouth; Overflow valve 54 links to each other with bleed off pipe 8 with the control mouth of reducing valve 53.

During work, the high pressure liquid force feed flows into choke valve 52 through the A4 mouth and carries out flow-control, then enters reducing valve 54 and overflow valve 54 and carries out after pressure regulates, 12 injection head compressed oil cylinders 55 that inflow is in parallel, promote hold-down mechanism, compress continuous-tube, realize that thrust is adjustable.

B, for the injection head mobile system, the B4 mouth of choke valve 56 and the B3 mouth of oil return link to each other with the B1 mouth with the B2 mouth that injection head moves banked direction control valves 43; Injection head Shift cylinder 57 links to each other with the B3 mouth of choke valve 56 and oil return.

During work, the high pressure liquid force feed flows into choke valve 56 through the B4 mouth and carries out flow-control, then enter the oil cylinder of injection head Shift cylinder 57 1 sides, injection head Shift cylinder 57 is comprised of two identical oil cylinders, a mouth is respectively arranged, the oil cylinder of injection head Shift cylinder 57 opposite sides links to each other with the B3 mouth of oil return, realizes that injection head Shift cylinder 57 comes and goes mobile and speed governing.

C, for the injection head drive system, the C3 mouth of choke valve 59 links to each other with the C2 mouth with the C1 of injection head driving banked direction control valves 44 respectively with the C4 mouth of choke valve 62, reducing valve 60 links to each other with choke valve 59, choke valve 62 and injection head CD-ROM drive motor 61, pressure transmitter 65 respectively with reducing valve 64, and overflow valve 58 links to each other with control mouth and the bleed off pipe 8 of reducing valve 60 and reducing valve 64 respectively with overflow valve 63.

During work, the high pressure liquid force feed flows into choke valve 62 through the C4 mouth and carries out flow-control, then enters reducing valve 64 and carries out the pressure adjusting, and Driver injection head CD-ROM drive motor 61 is rotated in the forward.Equally, carry out flow-control when the high pressure liquid force feed flows into choke valve 59 through the C3 mouth, then enter reducing valve 60 and carry out the pressure adjusting, 61 reverse rotations of Driver injection head CD-ROM drive motor.

D, for the injection head oscillation system, the D4 mouth of choke valve 66 with swing banked direction control valves 45D2 mouth with the D3 mouth of hydraulic lock 67 and injection head and link to each other with D1, hydraulic lock 67 links to each other with choke valve 66 with injection head oscillating oil cylinder 68 respectively.

During work, the high pressure liquid force feed flows into choke valve 66 through the D4 mouth and carries out flow-control, then enters hydraulic lock 67, promotes 68 motions of injection head oscillating oil cylinder, and hydraulic lock 67 is used for the pressure locking.

2, as shown in Figure 5, described tractor hydraulic system 5 comprises: tractor drives system, tractor pressing system and tractor clamping system, and this four sub-systems is connected in parallel, and is respectively applied to realize that tractor drives, tractor compress, the tractor tensioning;

The parts that mainly comprise: reducing valve 69, overflow valve 70, choke valve 71, tractor drives motor 72, reducing valve 73, overflow valve 74, flow divider-combiner 75, choke valve 76, pressure transmitter 77, choke valve 78, overflow valve 79, reducing valve 80, tractor compressed oil cylinder 81, overflow valve 82, choke valve 83, reducing valve 84, tractor tensioning hydro-cylinder 85.

Annexation:

A, for the tractor drives system, the E4 mouth of choke valve 76 links to each other with the E1 mouth with the E2 mouth of tractor drives banked direction control valves 46 respectively with the E3 mouth of choke valve 71, reducing valve 73 links to each other with choke valve 76, pressure transmitter 77, flow divider-combiner 75 and choke valve 71, tractor drives motor 72 respectively with reducing valve 69, flow divider-combiner 75 links to each other with tractor drives motor 72, and overflow valve 74 links to each other with bleed off pipe 8 with the control mouth of reducing valve 73, the control mouth of reducing valve 69 respectively with overflow valve 70.

During work, the high pressure liquid force feed flows into choke valve 76 through the E4 mouth and carries out flow-control, then enters reducing valve 73 and carries out the pressure adjusting, enter again flow divider-combiner 75, carry out the equivalent shunting, drive 72 1 forwards of tractor drives motor, a counter-rotating, and realization speed keeps synchronously.

B, for the tractor pressing system, the F4 mouth of choke valve 78 links to each other with the F2 mouth that tractor compresses banked direction control valves 47, reducing valve 80 links to each other with tractor compressed oil cylinder 81 with choke valve 78, tractor compressed oil cylinder 81 links to each other with the F1 mouth that tractor compresses banked direction control valves 47, and overflow valve 79 links to each other with bleed off pipe 8 with the control mouth of reducing valve 80 respectively.

During work, the high pressure liquid force feed flows into choke valve 78 through the F4 mouth and carries out flow-control, then enters hydraulic lock 67, then enters reducing valve 80 and carries out the pressure adjusting, promotes 81 work of tractor compressed oil cylinder, and tractor compressed oil cylinder 81 is comprised of four oil cylinders.

C, for the tractor clamping system, the G4 mouth of choke valve 83 links to each other with the G2 mouth of tractor tensioning banked direction control valves 48, reducing valve 84 links to each other with tractor tensioning hydro-cylinder 85 with choke valve 83, tractor tensioning hydro-cylinder 85 links to each other with the G1 mouth of tractor tensioning banked direction control valves 48, and overflow valve 82 links to each other with bleed off pipe 8 with the control mouth of reducing valve 84 respectively.

During work, the high pressure liquid force feed flows into choke valve 83 through the G4 mouth and carries out flow-control, then enters reducing valve 84 and regulates controlled pressure, 85 work of promotion tractor tensioning hydro-cylinder by overflow valve 82.

3, as shown in Figure 6, described cylinder and row's cable hydraulic system comprise: row pulls drive system and drum driven system, the row of being respectively applied to pulls and drives and drum driven, this two sub-systems is connected in parallel, row pull drive to be used for making the continuous-tube that is wrapped on the cylinder as cable side by side order arrange, in order to avoid continuous-tube tightly wrap or release process in disordered motion;

A, pull drive system for row, the H4 mouth of choke valve 92 links to each other with the H1 mouth with the H2 mouth of row's cable banked direction control valves 49 respectively with the H3 mouth of choke valve 88, row's cable CD-ROM drive motor 91 links to each other with choke valve 92, reducing valve 90 respectively and passes through the one way valve connected tank, the overfall of row's cable CD-ROM drive motor 91 links to each other with bleed off pipe 8, reducing valve 89 and reducing valve 90 are in series, and link to each other with row's cable CD-ROM drive motor 91 with choke valve 88, overflow valve 86 links to each other with bleed off pipe 8 with the control mouth of reducing valve 89, reducing valve 90 respectively with overflow valve 87.

During work, the high pressure liquid force feed flows into choke valve 92 through the H4 mouth and carries out flow-control, and then cable CD-ROM drive motor 91 rotary works are arranged in driving, and oil return makes cable CD-ROM drive motor 91 smooth workings of the row of driving through reducing

valve

89 and 90 liang of stage pressures controls of reducing valve.

B, for the drum driven system, the I4 mouth of choke valve 99 links to each other with the I1 mouth with the I2 mouth of drum driven banked direction control valves 50 respectively with the I3 mouth of choke valve 95, other parts are identical with the drum driven system.

4, referring to Fig. 7, the control room lifting hydraulic system mainly comprises: choke valve 100, two syncmotors 101, hydraulic lock 102, control room elevating ram 103.

Annexation: the J4 mouth of choke valve 100 links to each other with the J2 mouth of control room lifting banked direction control valves 51, two syncmotors 101 link to each other with choke valve 100, hydraulic lock 102, bleed off pipe 8 respectively, hydraulic lock 102 links to each other with two syncmotors 101 respectively with control room elevating ram 103, and the J1 mouth of control room lifting banked direction control valves 51 links to each other with the J3 mouth of hydraulic lock 102.

During work, the high pressure liquid force feed drives two syncmotors 101 and promotes 103 work of control room elevating ram through hydraulic lock 102 through choke valve 100.

Two, further, as shown in Figure 2, described the second banked direction control valves group comprises: the first control valve group 15, the second control valve group 14 and the 3rd control valve group 12, the first end of described the first control valve group 15 connects described the second hydraulic power source system 202, the second end of described the first control valve group 15 connects the arrival end of described the second control valve group 14, the 3rd end of described the first control valve group 15 connects the arrival end of described the 3rd control valve group 12, is provided with the change-over switch of the arrival end of the arrival end that switch to connect described the second control valve group 14 or described the 3rd control valve group 12 in described the first control valve group 15;

The oil circuit that the first control valve group 15 is used for control the second control valve group 14 and the 3rd control valve group 12 switches, the action of supporting leg hydraulic system, arm hangs hydraulic system, blowout preventer hydraulic system and the action of blowout prevention box hydraulic system, can realize control, the conversion of priority action relationships and the corresponding synchronization action relation of each sub-hydraulic system, realize the coordination of each subsystem such as leg system, arm crane system.

Described the second hydraulic power source system 202 has oil-out P2 and oil return opening L2; As shown in Figure 1, described the second banked direction control valves group comprises: the first control valve group 15 that is formed by 1 banked direction control valves, by 5 banked direction control valves the second control valve group 12 that forms in parallel and the 3rd control valve group 14 that formed by 7 banked direction control valves parallel connections; Wherein, the 3rd control valve group 14 and the second control valve group 12 are connected on the oil-out P2 and oil return opening L2 of the second hydraulic power source system 202 by 15 switchings of the first control valve group, realize the circulation of hydraulic oil, after realizing the supporting leg action, the control that arm hangs and blowout prevention box hydraulic system 9, blowout preventer hydraulic system 10 could be moved has guaranteed the safety of operation.

As shown in Figure 8, described the first control valve group is that 1 banked direction control valves forms, the first control valve group has four connectors, be respectively connector P4, connector L4, connector P5 and connector P6, described connector P4 connects described oil-out P2, described connector L4 is connected with described oil return opening L2, be provided with the change-over switch that connects described connector P4 and described connector P5 or be connected described connector P4 and connector P6 in described the first control valve group, realize that connector P4 is connected with the switching of connector P6 with connector P5 or connector P4, so that connector P5 or be connected with connector P4, or connector P6 is connected with described connector P4;

Described the 3rd control valve group has the connector L7 that is connected with described connector L4 and the connector L7 that is connected with described connector P5; Wherein, connector L4, connector L7 are oil return opening, connect return line.

Overall switching by 1 banked direction control valves, 5 banked direction control valves be connected in parallel and 7 banked direction control valves are connected in parallel, realized the supporting leg hydraulic system, arm hangs hydraulic system, the action control of the inside of blowout preventer hydraulic system and blowout prevention box hydraulic system and complexity each other, both guaranteed the coordination control of hydraulic control system for continuous pipe tripping device for the action relationships of leg system inside, guaranteed also that simultaneously hydraulic control system for continuous pipe tripping device is for the arm crane system, the control of the action relationships of blowout preventer hydraulic system and blowout prevention box hydraulic system, so that supporting leg stable after, the arm crane system, blowout preventer hydraulic system and blowout prevention box hydraulic system could be moved, in order to avoid at the arm crane system, when blowout preventer hydraulic system and the action of blowout prevention box hydraulic system, unstable and the overturn accident that brings of supporting leg, also so that the arm crane system, when blowout preventer hydraulic system and the action of blowout prevention box hydraulic system, supporting leg no longer moves, guaranteed the arm crane system, the safety of blowout preventer hydraulic system and the action of blowout prevention box hydraulic system and stable, realized sharing a fuel tank 1, the coordination of each system in the situation of a shared car.

Such as Fig. 9, described supporting leg hydraulic system 13 comprises: left front supporting leg hydraulic system, right front supporting leg hydraulic system, left back supporting leg hydraulic system, right back supporting leg hydraulic system and main landing leg stretching hydraulic system, wherein, main landing leg stretching hydraulic system is used for controlling main landing leg stretching, main supporting leg stretches out prior to left front supporting leg, right front supporting leg, left back supporting leg, right back supporting leg, forms main the support.Described the second control valve group comprises left front Multi-way valve with support leg 119, right front Multi-way valve with support leg 120, left back Multi-way valve with support leg 121, right back Multi-way valve with support leg 122 and the main landing leg stretching banked direction control valves 123 of successively series connection;

Described left front Multi-way valve with support leg 119 correspondences are connected on the described left front supporting leg hydraulic system, described right front Multi-way valve with support leg 120 correspondences are connected on the described right front supporting leg hydraulic system, described left back Multi-way valve with support leg 121 correspondences are connected on the described left back supporting leg hydraulic system, described right back Multi-way valve with support leg 122 correspondences are connected on the described right back supporting leg hydraulic system, and described main landing leg stretching banked direction control valves correspondence is connected on the described main landing leg stretching hydraulic system.Above-mentioned each banked direction control valves is controlled respectively the flexible or corresponding action of each sub-supporting leg hydraulic system.The concrete syndeton of main landing leg stretching supporting leg hydraulic system 13 and the second control valve group 12

The annexation of (1) second control valve group 12: pressure meter 115, pressure measurement flexible pipe 116, pressure measuring tie-in 117 orders link to each other with the P8 mouth, while P8 mouth and five left front Multi-way valve with support legs 119 of banked direction control valves, right front Multi-way valve with support leg 120, left back Multi-way valve with support leg 121, right back Multi-way valve with support leg 122, main landing leg stretching banked direction control valves 123 and overflow valve 118 link to each other, choke valve 114 and five left front Multi-way valve with support legs 119 of banked direction control valves, right front Multi-way valve with support leg 120, left back Multi-way valve with support leg 121, right back Multi-way valve with support leg 122, main landing leg stretching banked direction control valves 123 and overflow valve 118, the L8 mouth links to each other, the R1 of left front Multi-way valve with support leg 119 links to each other with R4 with supporting leg hydraulic system R3 respectively with the R2 mouth, the S1 of right front Multi-way valve with support leg 120 links to each other with the S4 mouth with the S3 of supporting leg hydraulic system respectively with the S2 mouth, the T1 of left back Multi-way valve with support leg 121 links to each other with the T4 mouth with the T3 of supporting leg hydraulic system respectively with the T2 mouth, the U1 of right back Multi-way valve with support leg 122 links to each other with the U4 mouth with the U3 of supporting leg hydraulic system respectively with the U2 mouth, and the V1 of main landing leg stretching banked direction control valves 123 links to each other with V4 with the V3 of supporting leg hydraulic system respectively with the V2 mouth.

During work, the P8 mouth comes oily behind overflow valve 118 adjust fluxes, enter successively left front Multi-way valve with support leg 119, right front Multi-way valve with support leg 120, left back Multi-way valve with support leg 121, right back Multi-way valve with support leg 122, main landing leg stretching banked direction control valves 123, go to control corresponding holding function.

(2) the concrete annexation of supporting leg hydraulic system 13: the R3 of hydraulic lock 124 links to each other with the R2 mouth with the R1 of left front Multi-way valve with support leg 119 respectively with the R4 mouth, left front support oil cylinder 125 links to each other with hydraulic lock 124, the S3 of hydraulic lock 126 links to each other with the S2 mouth with the S1 of right front Multi-way valve with support leg 120 respectively with the S4 mouth, right front support oil cylinder 127 links to each other with hydraulic lock 126, the T3 of hydraulic lock 128 links to each other with the T2 mouth with the T1 of left back Multi-way valve with support leg 121 respectively with the T4 mouth, left back support oil cylinder 129 links to each other with hydraulic lock 128, the U3 of hydraulic lock 130 links to each other with the U2 mouth with the U1 of right back Multi-way valve with support leg 122 respectively with the U4 mouth, right back support oil cylinder 131 links to each other with hydraulic lock 130, and left main landing leg stretching oil cylinder 132 links to each other with the V2 mouth with the V1 of main landing leg stretching banked direction control valves 123 respectively with the V4 mouth with V3 after right main landing leg stretching oil cylinder 133 is in parallel.

During work, the next oily of R4 mouth drives left front support oil cylinder 125 work through hydraulic lock 124, and oil return is returned by the R3 mouth of hydraulic lock 124.Hydraulic lock 124 plays the effect of pressure self-locking.

The operating principle of right front support oil cylinder 127, left back support oil cylinder 129, right back support oil cylinder 131 is the same.

Next oily left main landing leg stretching oil cylinder 132 and the right main landing leg stretching oil cylinder 133 of entering simultaneously of V4 mouth makes two telescopic oil cylinder work, and oil return is returned through the V3 mouth.

2, such as Figure 10, further, described the 3rd control valve group 12 is to be connected by the mode that seven monolithic solenoid-operated proportional banked direction control valves are in parallel.Between P7 and L7, be in series with overflow valve 106, also be connected with successively pressure meter 104, pressure measuring tie-in 105 at the P7 mouth.Described the 3rd control valve group 12 comprises: arm hangs luffing banked direction control valves 107, arm and hangs flexible banked direction control valves 108, preventer and partly seal banked direction control valves 109, preventer and entirely seal banked direction control valves 110, preventer slips banked direction control valves 111, preventer and shear banked direction control valves 112, blowout prevention box banked direction control valves 113; Described arm hangs hydraulic system 11 and comprises: arm hangs variable amplitude hydraulic system and arm hangs flexible hydraulic system; Described blowout preventer hydraulic system 10 comprises: preventer half sealing liquid pressing system, the full sealing liquid pressing system of preventer, preventer slip hydraulic system and preventer are sheared hydraulic system;

The above-mentioned mode that is connected in parallel, reached arm and hung variable amplitude hydraulic system and arm and hang flexible hydraulic system, preventer half sealing liquid pressing system, the full sealing liquid pressing system of preventer, preventer slip hydraulic system and preventer and shear mutually noninterfere between the hydraulic system, function that can synchronization action.

(1) arm hangs hydraulic system:

A, hang changing-breadth system for arm, mainly comprise: choke valve 133, flow divider-combiner 134, equalizing valve 135, equalizing valve 136, arm hang amplitude oil cylinder 137.

Annexation: the K2 mouth that K4 mouth and the arm of choke valve 133 hangs luffing banked direction control valves 107 links to each other, flow divider-combiner 134 links to each other with equalizing valve 135, equalizing valve 136 with choke valve 133 respectively, two arms hang amplitude oil cylinder 137 and link to each other with equalizing valve 136 with equalizing valve 135, and oil return links to each other with the K3 mouth.

During work, the K4 mouth oilyly regulates, after flow divider-combiner 134 shuntings, to enter respectively equalizing valve 135 and equalizing valve 136 through choke valve 133 successively, and actuating arm hangs amplitude oil cylinder 137 and makes its synchronous working.

B: hang telescopic system for arm, mainly comprise: choke valve 138, two syncmotors 139, equalizing valve 140, equalizing valve 141, arm hang telescopic oil cylinder 142.

Annexation: choke valve 138 links to each other with two syncmotors 139 with the Y4 mouth respectively, and equalizing valve 140 hangs telescopic oil cylinder 142 with two syncmotors 139 and arm respectively with equalizing valve 141 and links to each other, and oil return links to each other with the Y3 mouth.

During work, the Y4 mouth oilyly adjusts, after 139 shuntings of two syncmotors, to enter respectively equalizing valve 140 and equalizing valve 141 through choke valve 138 successively, and the actuating arm arm hangs telescopic oil cylinder 142 can make its synchronous working.

(2) preventer and blowout prevention box hydraulic system:

Such as Figure 11, preventer and blowout prevention box hydraulic system mainly are comprised of five parts: preventer half envelope, preventer seals entirely, the preventer slips, preventer is sheared, blowout prevention box mainly comprises: overflow valve 143, reducing valve 144, pressure meter switch 145, pressure meter 146, choke valve 147, overflow valve 148, reducing valve 149, pressure meter switch 150, pressure meter 151, choke valve 152, overflow valve 153, preventer 154, reducing valve 155, pressure meter switch 156, pressure meter 157, choke valve 158, overflow valve 159, reducing valve 160, pressure meter switch 161, pressure meter 162, choke valve 163, overflow valve 164, reducing valve 165, pressure meter switch 166, pressure meter 167, blowout prevention box 168, choke valve 169.The system of every part of five parts of preventer and blowout prevention box hydraulic system forms identical, and function class seemingly is elaborated as an example of preventer half envelope system example, and other system similarly.

A, preventer half envelope system form: overflow valve 143, reducing valve 144, pressure meter switch 145, pressure meter 146, choke valve 147.

Preventer partly seals system's annexation:

Choke valve 147 respectively corresponding with M4 mouth and preventer 154 mouthful link to each other.

Reducing valve 144 respectively corresponding with M3 mouth and preventer 154 mouthful link to each other.

Overflow valve 143 links to each other with bleed off pipe 8 with the control mouth of reducing valve 144 respectively.

M3 and M4 mouth link to each other with the M2 mouth with the M1 that preventer partly seals banked direction control valves 109 respectively.

During work, the M4 mouth is next oily to enter preventer 154 through choke valve 147, drives corresponding oil cylinder work, and oil return is returned the M3 mouth through reducing valve 144 pressure regulation.Overflow valve 143 is the adjusting control to reducing valve 144.

B, blowout prevention box hydraulic system:

Critical piece comprises: overflow valve 164, reducing valve 165, pressure meter 167, choke valve 169.

Annexation: choke valve 169 and reducing valve 165 respectively corresponding with blowout prevention box 168 mouthful link to each other.Overflow valve 164 links to each other with bleed off pipe 8 with the control mouth of reducing valve 165 respectively.

The above only is the schematic specific embodiment of the present invention, is not to limit scope of the present invention.For each ingredient of the present invention can make up under the condition of not conflicting mutually, any those skilled in the art, the equivalent variations of having done under the prerequisite that does not break away from design of the present invention and principle and modification all should belong to the scope of protection of the invention.

Claims

1. hydraulic control system for continuous pipe tripping device, it is characterized in that, described hydraulic control system for continuous pipe tripping device comprises: cylinder and row's cable hydraulic system (6), injection head hydraulic system (4), tractor hydraulic system (5) and a fuel tank (1), described fuel tank (1) has the oil outlet end of output hydraulic pressure oil and the oil revolving end of oil return, and described cylinder and row's cable hydraulic system (6), injection head hydraulic system (4), tractor hydraulic system (5) are connected in parallel between described oil outlet end and the described oil revolving end.

2. hydraulic control system for continuous pipe tripping device as claimed in claim 1 is characterized in that, described hydraulic control system for continuous pipe tripping device is arranged on the car.

3. hydraulic control system for continuous pipe tripping device as claimed in claim 1, it is characterized in that, described hydraulic control system for continuous pipe tripping device also comprises: the blowout prevention box hydraulic system (9), blowout preventer hydraulic system (10), the arm that are connected in parallel between described oil outlet end and the described oil revolving end hang hydraulic system (11) and supporting leg hydraulic system (13).

4. hydraulic control system for continuous pipe tripping device as claimed in claim 3, it is characterized in that, described hydraulic control system for continuous pipe tripping device also comprises: and described injection head hydraulic system (4) is connected in parallel on the control room lifting hydraulic system (7) between described oil outlet end and the described oil revolving end.

5. hydraulic control system for continuous pipe tripping device as claimed in claim 4, it is characterized in that, described oil outlet end comprises: the first oil outlet end and the second oil outlet end, described oil revolving end is one, and described cylinder and row's cable hydraulic system (6), injection head hydraulic system (4), tractor hydraulic system (5) are connected in parallel between described the first oil outlet end and the described oil revolving end.

6. hydraulic control system for continuous pipe tripping device as claimed in claim 5, it is characterized in that, described blowout prevention box hydraulic system (9), blowout preventer hydraulic system (10), arm hang hydraulic system (11) and supporting leg hydraulic system (13) is connected in parallel between described the second oil outlet end and the described oil revolving end.

7. hydraulic control system for continuous pipe tripping device as claimed in claim 5, it is characterized in that, described the first oil outlet end connects described cylinder and row's cable hydraulic system (6), injection head hydraulic system (4), tractor hydraulic system (5) and control room lifting hydraulic system (7) by the first banked direction control valves group (3).

8. hydraulic control system for continuous pipe tripping device as claimed in claim 7 is characterized in that, is provided with the first hydraulic power source system (201) between described the first banked direction control valves group (3) and described the first oil outlet end.

9. hydraulic control system for continuous pipe tripping device as claimed in claim 8 is characterized in that,

Described injection head hydraulic system (4) comprising: injection head pressing system, injection head mobile system, injection head drive system and injection head oscillation system in parallel; Described tractor hydraulic system (5) comprising: tractor drives system, tractor pressing system and tractor clamping system in parallel; Described cylinder and row's cable hydraulic system comprise: row in parallel pulls drive system and drum driven system;

Described the first banked direction control valves group (3) forms by ten monolithic solenoid-operated proportional banked direction control valves are in parallel, described the first hydraulic power source system (201) has oil-out P1 and oil return opening L1, described the first banked direction control valves group (3) has the connector P3 that is connected with described oil-out P1 and the connector L3 that is connected with described oil return opening L1, and described ten monolithic solenoid-operated proportional banked direction control valves are connected in parallel between described connector P3 and the described connector L3;

10. hydraulic control system for continuous pipe tripping device as claimed in claim 9, it is characterized in that, described blowout prevention box hydraulic system (9), blowout preventer hydraulic system (10), arm hang hydraulic system (11) and supporting leg hydraulic system (13) is connected between described the second oil outlet end and the described oil revolving end by the second banked direction control valves group, is provided with the second hydraulic power source system (202) between described the second banked direction control valves group and described the second oil outlet end.

11. hydraulic control system for continuous pipe tripping device as claimed in claim 9, it is characterized in that, described the second banked direction control valves group comprises: the first control valve group (15), the second control valve group (14) and the 3rd control valve group (12), the first end of described the first control valve group (15) connects described the second hydraulic power source system (202), the second end of described the first control valve group (15) connects the arrival end of described the second control valve group (14), the 3rd end of described the first control valve group (15) connects the arrival end of described the 3rd control valve group (12), is provided with the change-over switch of the arrival end of the arrival end that switch to connect described the second control valve group (14) or described the 3rd control valve group (12) in described the first control valve group (15);

The port of export of described the second control valve group (14) connects described supporting leg hydraulic system (13), and described blowout prevention box hydraulic system (9), blowout preventer hydraulic system (10) and arm hang on the port of export that hydraulic system (11) is connected in parallel on respectively described the 3rd control valve group (12).

12. hydraulic control system for continuous pipe tripping device as claimed in claim 9 is characterized in that, described the second hydraulic power source system (202) has oil-out P2 and oil return opening L2; Described the second banked direction control valves group comprises: the first control valve group that is formed by 1 banked direction control valves, by 5 banked direction control valves the second control valve group that forms in parallel and the 3rd control valve group that formed by 7 banked direction control valves parallel connections;

Described supporting leg hydraulic system (13) comprising: left front supporting leg hydraulic system, right front supporting leg hydraulic system, left back supporting leg hydraulic system, right back supporting leg hydraulic system and main landing leg stretching hydraulic system, described the second control valve group comprise left front Multi-way valve with support leg (119), right front Multi-way valve with support leg (120), left back Multi-way valve with support leg (121), right back Multi-way valve with support leg (122) and the main landing leg stretching banked direction control valves (123) of successively series connection;

Described left front Multi-way valve with support leg (119) correspondence is connected on the described left front supporting leg hydraulic system, described right front Multi-way valve with support leg (120) correspondence is connected on the described right front supporting leg hydraulic system, described left back Multi-way valve with support leg (121) correspondence is connected on the described left back supporting leg hydraulic system, described right back Multi-way valve with support leg (122) correspondence is connected on the described right back supporting leg hydraulic system, and described main landing leg stretching banked direction control valves correspondence is connected on the described main landing leg stretching hydraulic system.

13. hydraulic control system for continuous pipe tripping device as claimed in claim 12, it is characterized in that, described the 3rd control valve group comprises: arm hangs luffing banked direction control valves (107), arm and hangs flexible banked direction control valves (108), preventer and partly seal banked direction control valves (109), preventer and entirely seal banked direction control valves (110), preventer slips banked direction control valves (111), preventer and shear banked direction control valves (112), blowout prevention box banked direction control valves (113); Described arm hangs hydraulic system (11) and comprising: arm hangs variable amplitude hydraulic system and arm hangs flexible hydraulic system; Described blowout preventer hydraulic system (10) comprising: preventer half sealing liquid pressing system, the full sealing liquid pressing system of preventer, preventer slip hydraulic system and preventer are sheared hydraulic system;

Described arm hangs the described arm of luffing banked direction control valves (107) connection and hangs variable amplitude hydraulic system, described arm hangs the described arm of flexible banked direction control valves (108) connection and hangs flexible hydraulic system, preventer partly seals banked direction control valves (109) and connects described preventer half sealing liquid pressing system, described preventer entirely seals banked direction control valves (110) and connects the full sealing liquid pressing system of described preventer, the described preventer slip hydraulic of described preventer slips banked direction control valves (111) connection system, described preventer is sheared banked direction control valves (112) and is connected described preventer shearing hydraulic system, and described blowout prevention box banked direction control valves (113) connects described blowout prevention box hydraulic system.