CN206555192U - Top drive drilling energy-saving hydraulic pump station system - Google Patents
Top drive drilling energy-saving hydraulic pump station system Download PDFInfo
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- CN206555192U CN206555192U CN201720238009.5U CN201720238009U CN206555192U CN 206555192 U CN206555192 U CN 206555192U CN 201720238009 U CN201720238009 U CN 201720238009U CN 206555192 U CN206555192 U CN 206555192U
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Abstract
The utility model discloses a kind of top drive drilling energy-saving hydraulic pump station system, its motor, pump head valve group, accumulator and air bleeding valve on top drive body for including hydraulic oil container, main pump, power being provided for main pump；The inlet communication of main pump is in hydraulic oil container；The outlet of main pump is connected with the input port of pump head valve group；Main valve, accumulator and the hydraulic oil container that the delivery outlet of pump head valve group drives body with top respectively are connected；Pump head valve group includes check valve, the off-load choke valve for system decompression, the unloading overflow valve for the setting of system safe pressure and main pump Low-pressure load discharge；Air bleeding valve is communicated in pump head valve group, and the outlet of air bleeding valve is connected to hydraulic oil container.Pumping station system of the present utility model can realize low pressure and mass flow, the rapidly and efficiently operation effectiveness of high-pressure low-flow；The stationarity of lifting system reliability and system operation, effectively reduces the downtime.
Description
Technical field
The utility model is related to geological drilling engineering hydraulic system technical field, more particularly to a kind of top drive drilling energy-conservation
Hydraulic power unit system.
Background technology
Current deep drilling rig both domestic and external, ocean and shallow sea petroleum drilling platforms, construction special well are equipped with mostly
Top-drive drilling.Top-drive drilling is also referred to as top and driven.Top-drive drilling can be empty from upper derrick
Between direct rotary drill rod, be sent into downwards along exclusive guideway, complete drilling rod rotary drilling, circulating fluid connects column, upper shackle and
A variety of drill-well operations such as back reaming.The top-drive drilling of top-drive drilling, particularly ocean platform, pumping plant
Design has two kinds.One kind is together with Integral hydraulic pumping plant, i.e. pumping plant drive Ontology integration with top.Another is separate type
Hydraulic power unit, i.e. pumping plant are positioned over ground, realize that pumping plant drives body fluid pressure line with top and is connected by pipeline and snap joint.When
Both preceding designs all cut both ways, predominantly：(1) for integral type pumping plant, because top drive space is limited, its topology layout
Complexity, the pumping plant component reliability relative reduction under the operating mode such as drilling well and jarring；(2) for separate type pumping plant, because generally adopting
Isobarically Control pattern is used, pump has been at mesohigh working condition substantially, be unfavorable for pump as critical component Acceptable life
Lifting.
Utility model content
The technical problems to be solved in the utility model is that there is provided one kind top in order to overcome the drawbacks described above that prior art is present
Drive rig energy-saving hydraulic pump station system.
The utility model is to solve above-mentioned technical problem by following technical proposals：
A kind of top drive drilling energy-saving hydraulic pump station system, it includes hydraulic oil container, main pump, the electricity of power is provided for main pump
Machine, pump head valve group, accumulator and air bleeding valve on top drive body；The inlet communication of main pump is in hydraulic oil container；Main pump
Outlet is connected with the input port of pump head valve group；The delivery outlet of pump head valve group drives main valve, accumulator and the hydraulic pressure of body with top respectively
Fuel tank is connected；Pump head valve group includes check valve, the off-load choke valve for system decompression, set for system safe pressure and main
The unloading overflow valve of pump Low-pressure load discharge；Air bleeding valve is communicated in pump head valve group, and the outlet of air bleeding valve is connected to hydraulic oil container.
It is preferred that main pump is Variable plunger pump, motor is threephase asynchronous machine.
It is preferred that main pump and motor are two, a main pump and a motor are a working group, and Liang Ge working groups are
It is connected in parallel.
It is preferred that hydraulic oil container is provided with breather valve and oil level indicator.
It is preferred that being provided with return filter between pump head valve group and hydraulic oil container；Provided with suction between main pump and hydraulic oil container
Oil strainer.
It is preferred that pump head valve group also includes pressure sensor.
It is preferred that being provided with stop valve between accumulator and pump head valve group.
Positive effect of the present utility model is：(it is usually maximum pump discharge by setting plunger pump minimum injection rate
1/2), and by constant pressure control system (setting of general variance pressure need to be more than 5MPa) so as to realize low pressure and mass flow, high pressure is small
The rapidly and efficiently operation effectiveness of flow.System constant pressure effect is realized by unloading overflow valve and joint accumulator so that system pressure
Power is maintained between 100% setting pressure and 85% setting pressure all the time.During system maintains this pressure, main pump big flow
Low-pressure load discharge, and circulated through filter, be conducive to raising system oil cleanliness, lifting system reliability.Pumping hole increase exhaust
Valve, can be achieved initial start stage exhaust and realizes No Load Start, be conducive to improving the stationarity of system operation.Double pump bi-motor it is superfluous
Remaining design, is conducive to improving system reliability, effectively reduces the downtime.
Brief description of the drawings
Fig. 1 is the systematic schematic diagram of the utility model preferred embodiment.
Embodiment
Name preferred embodiment, and become apparent from intactly illustrating the utility model with reference to accompanying drawing.
As shown in figure 1, a kind of top drive drilling energy-saving hydraulic pump station system, it includes hydraulic oil container 1, main pump, is main pump
Motor, pump head valve group, the accumulator 15 and air bleeding valve 12 on top drive body of power are provided.Hydraulic oil container 1 is provided with
Breather valve 2 and oil level indicator 3.
Motor is threephase asynchronous machine.Main pump is Variable plunger pump, and is constant-pressure variable mode, and variable pressure setting is relative
Maximum working pressure is relatively low, need to typically be more than 5MPa, minimum injection rate non-zero setting, it is considered to which efficiency is usually set to minimum injection rate
50% or so.
Main pump is two, specially plunger pump 8.1 and plunger pump 8.2, and motor is two, specially motor 7.1 and motor
7.2.Plunger pump 8.1 and motor 7.1 are a working group, and plunger pump 8.2 and motor 7.2 are another working group, two work
Group is to be connected in parallel.Main pump and motor are that double pump bi-motor is connected in parallel, one group of work, and one group standby, is interlocked in control.
The import of plunger pump 8.1 and the import of plunger pump 8.2 are respectively communicated with hydraulic oil container；The outlet of plunger pump 8.1 and
Input port of the outlet of plunger pump 8.2 respectively with pump head valve group is connected；The delivery outlet of pump head valve group drives the master of body with top respectively
Valve, accumulator 15 and hydraulic oil container 1 are connected.
Return filter 4 is provided between pump head valve group and hydraulic oil container.Provided with suction between plunger pump 8.1 and hydraulic oil container 1
Oil strainer 5.1, is provided with oil absorption filter 5.2 between plunger pump 8.2 and hydraulic oil container 1.Plunger pump 8.1 and oil absorption filter
Ball valve 6.1 is provided between 5.1, ball valve 6.2 is provided between plunger pump 8.2 and oil absorption filter 5.2.
Pump head valve group include check valve 9.1, check valve 9.2, check valve 9.3, the off-load choke valve 11 for system decompression,
For the setting of system safe pressure and unloading overflow valve 10, the pressure sensor 13 of main pump Low-pressure load discharge.
The off-load choke valve that pump head valve group is internally integrated is manual off-load choke valve, during for maintenance system, completes system
Pressure release.Give tacit consent to normally off.The unloading overflow valve that pump head valve group is internally integrated, is unloaded for the setting of system safe pressure and pump low pressure
Lotus.
Unloading overflow valve is inserts valve arrangement, and it, which combines the accumulator driven on body on top, can realize setting pressure and downward
In the interval of the default pressure of maximum float 15%, Low-pressure load discharge is realized.After system pressure 85% less than setting pressure,
Plunger pump is automatically stopped off-load, recovers loading and continues fuel feeding to system, until setting pressure off-load again, so circulation.
Air bleeding valve is communicated in pump head valve group, and the outlet of air bleeding valve is connected to hydraulic oil container.The gas that main pump initial start stage is excluded
Body is directly led to outside fuel tank 1, then the discharge system of breather valve 2 through fuel tank by air bleeding valve 12.
Stop valve 9.4 is provided between accumulator 15 and pump head valve group.The stop valve is used to keep pump head valve group and accumulator
Between loine pressure, make its be full of fluid, improve system pressure response.It is additionally provided between stop valve 9.4 and pump head valve group fast
Quick coupling 14.
The utility model energy-saving hydraulic pump station system, its specific control principle is：Pass through programmable logic controller (PLC) (PLC)
The interlocking procedure selection of control starts one of which plunger pump and motor, and plunger pump 8.1 (or plunger pump 8.2) is from hydraulic oil container 1
Oil suction, and by oil absorption filter 5.1 (or oil absorption filter 5.2) and ball valve 6.1 (or ball valve 6.2), it is translated into pressure
It can discharge, reach the import of air bleeding valve 12 all the way by stop valve 9.1 (or stop valve 9.2).Because air bleeding valve is long port valve, work as row
When containing a large amount of gases in the fluid gone out, the throttle orifice being directly in air bleeding valve is drained, until there is fluid to pass through, one is produced
Determine back pressure (generally 0.8MPa), now air bleeding valve is closed automatically, and exhaust terminates.Main pump has also normally completed the sky of maximum pump discharge
Carry and start.This startup time is relevant with the throttle orifice size in flow system flow and air bleeding valve 12, typically in or so several seconds.
With the operation of pump, system starts to build pressure.When pressure reaches the constant-pressure variable point pressure that plunger pump is carried, pump row
Amount automatically switches to small displacement.Efficient to ensure, small displacement is typically set to half of maximum pump discharge or so.When plunger pump is in float
Continued to run with amount operating mode, fluid after stop valve 9.3, snap joint 14, stop valve 9.4, reaches system accumulator all the way
15, it is oil-filled to accumulator, it is that system reserve fraction promptly uses oil mass.
When system pressure is increased to the system maximum pressure of the setting of unloading overflow valve 10, plunger pump 8.1 (or plunger pump
8.2) off-load is started.Now plunger pump 8.1 (or plunger pump 8.2) returns to maximum pump discharge again, realizes that oil return is directly over oil return
The circulating filtration of filter 4.
When interior let out of system work, or system valve causes system pressure to reduce, when system pressure is less than unloading overflow valve 10
When setting less than the 85% of pressure, the unloading overflow valve 10 automatically cuts off off-load, recovers to give system fuel feeding again, goes round and begins again.
Pumping station system of the present utility model, by setting plunger pump minimum injection rate (being usually the 1/2 of maximum pump discharge), and leads to
Constant pressure control system (setting of general variance pressure is more than 5MPa) is crossed to realize low pressure and mass flow, the quick height of high-pressure low-flow
Imitate operation effectiveness.
Pumping station system of the present utility model, system constant pressure effect is realized by unloading overflow valve and joint accumulator：So that
System pressure is maintained between 100% setting pressure and 85% setting pressure all the time.During system maintains this pressure, main pump
Big flow Low-pressure load discharge, and circulated through filter, be conducive to raising system oil cleanliness, lifting system reliability.
Pumping station system of the present utility model, pumping hole increase air bleeding valve can be achieved initial start stage exhaust and realize No Load Start,
Be conducive to improving the stationarity of system operation.
Pumping station system of the present utility model, using the Redundancy Design of double pump bi-motor, is conducive to improving system reliability, has
The effect reduction downtime.
Although the foregoing describing embodiment of the present utility model, it will be appreciated by those of skill in the art that
This is merely illustrative of, and protection domain of the present utility model is defined by the appended claims.Those skilled in the art
On the premise of without departing substantially from principle of the present utility model and essence, various changes or modifications can be made to these embodiments,
But these changes and modification each fall within protection domain of the present utility model.
Claims (7)
1. a kind of top drive drilling energy-saving hydraulic pump station system, it is characterised in that it includes hydraulic oil container, main pump, carried for main pump
Motor, pump head valve group for power, accumulator and air bleeding valve on top drive body；The inlet communication of main pump is in hydraulic oil
Case；The outlet of main pump is connected with the input port of pump head valve group；The delivery outlet of pump head valve group drives main valve, the accumulation of energy of body with top respectively
Device and hydraulic oil container connection；Pump head valve group includes check valve, the off-load choke valve for system decompression, for system safe pressure
Setting and the unloading overflow valve of main pump Low-pressure load discharge；Air bleeding valve is communicated in pump head valve group, and the outlet of air bleeding valve is connected to hydraulic oil
Case.
2. top drive drilling as claimed in claim 1 energy-saving hydraulic pump station system, it is characterised in that main pump is variable piston
Pump, motor is threephase asynchronous machine.
3. top drive drilling as claimed in claim 1 energy-saving hydraulic pump station system, it is characterised in that main pump and motor are two
Individual, a main pump and a motor are a working group, and Liang Ge working groups are to be connected in parallel.
4. top drive drilling as claimed in claim 1 energy-saving hydraulic pump station system, it is characterised in that hydraulic oil container is provided with and exhaled
Inhale valve and oil level indicator.
5. top drive drilling as claimed in claim 1 energy-saving hydraulic pump station system, it is characterised in that pump head valve group and hydraulic oil
Return filter is provided between case；Oil absorption filter is provided between main pump and hydraulic oil container.
6. top drive drilling as claimed in claim 1 energy-saving hydraulic pump station system, it is characterised in that pump head valve group also includes pressure
Force snesor.
7. top drive drilling as claimed in claim 1 energy-saving hydraulic pump station system, it is characterised in that accumulator and pump head valve group
Between be provided with stop valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720238009.5U CN206555192U (en) | 2017-03-13 | 2017-03-13 | Top drive drilling energy-saving hydraulic pump station system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720238009.5U CN206555192U (en) | 2017-03-13 | 2017-03-13 | Top drive drilling energy-saving hydraulic pump station system |
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| Publication Number | Publication Date |
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| CN206555192U true CN206555192U (en) | 2017-10-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720238009.5U Active CN206555192U (en) | 2017-03-13 | 2017-03-13 | Top drive drilling energy-saving hydraulic pump station system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111536092A (en) * | 2020-04-03 | 2020-08-14 | 湖南双达机电有限责任公司 | Hydraulic system, method for adjusting hydraulic system, and engineering vehicle |
| WO2021004397A1 (en) * | 2019-07-09 | 2021-01-14 | 中国矿业大学 | Large flow valve-pump joint control emulsion pump station and control method therefor |
-
2017
- 2017-03-13 CN CN201720238009.5U patent/CN206555192U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021004397A1 (en) * | 2019-07-09 | 2021-01-14 | 中国矿业大学 | Large flow valve-pump joint control emulsion pump station and control method therefor |
| CN111536092A (en) * | 2020-04-03 | 2020-08-14 | 湖南双达机电有限责任公司 | Hydraulic system, method for adjusting hydraulic system, and engineering vehicle |
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