CN201358926Y - Device for adjusting and controlling digital display of pressure of slurry pump - Google Patents
Device for adjusting and controlling digital display of pressure of slurry pump Download PDFInfo
- Publication number
- CN201358926Y CN201358926Y CNU2009200230559U CN200920023055U CN201358926Y CN 201358926 Y CN201358926 Y CN 201358926Y CN U2009200230559 U CNU2009200230559 U CN U2009200230559U CN 200920023055 U CN200920023055 U CN 200920023055U CN 201358926 Y CN201358926 Y CN 201358926Y
- Authority
- CN
- China
- Prior art keywords
- pressure
- slurry pump
- microprocessor
- display screen
- digital display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a device for adjusting and controlling the digital display of the pressure of a slurry pump. The device is applied to solid control and circulation system of oil rigs and can effectively control the pressure of the slurry pump and prevent equipment damage and drilling accidents. The device comprises a display screen and a pressure sensor; the pressure sensor is connected with a digital-to-analogue conversion chip, a microprocessor, an arithmetic unit and an intermediate relay sequentially; and the display screen is mounted beside a driller and the pressure sensor is mounted at the outlet of a rig floor high-pressure stand pipe. By adopting the device, the range of the pressure can be conveniently set through installing special software to the microprocessor; and when practical pressure diverges the set pressure, sound alarm is sent out, and the intermediate relay is driven to lead the actuating mechanism of the slurry pump to take action, thereby avoiding damage caused by overhigh pumping pressure and drilling accidents.
Description
Technical field:
The utility model belongs to the drilling equipment of petroleum industry, and slurry pump adjustable in pressure digital display control gear particularly is applied to the solid controlling circulatory system of oil-well rig, effectively controls the pressure of slurry pump, prevents the generation of device damage and drilling failure.
Background technique:
Slurry pump changes into high-pressure liquid to the mud in the slurry tank, enter the shaft bottom through manifold of ground, high pressure vertical tube, drilling tool, main effect has two aspects, the one, equilibrium strata pressure prevents cave-in, the 2nd, carry from downhole crushed landwaste, pass through the outer annular space of drilling tool again, return ground, constitute the solid controlling circulatory system of oil-well rig, whether how the pressure of slurry pump directly influences wellbore construction can normally be carried out.Traditional monitoring method is that a pointer Pump pressure meter is installed on standpipe, and by from pressure gauge stand of pipeline welding, linkage pointer formula Bourdon tube pressure gauge reflects the size of fluid pressure in the pipeline with pointer.The pointer Pump pressure meter has tens meters distance from driller station, under the bad situation of the weather that mist is arranged and light, site operation is brought very big inconvenience.Usually because range estimation sum of errors manometric validity, the pressure of demonstration has an error with actual, causes the damage of equipment, the defective of maximum be can not setting pressure scope.
Summary of the invention:
The purpose of this utility model provides slurry pump adjustable in pressure digital display control gear, overcomes the defective that prior art exists, and sets the pressure range of slurry pump, convenient construction, makes things convenient for driller's execute-in-place.
The present technique solution can reach above-mentioned purpose: slurry pump adjustable in pressure digital display control gear comprises display screen and pressure transducer, pressure transducer is connected with analog-to-digital conversion chip, microprocessor, arithmetic mean unit and auxiliary reclay successively, display screen is installed in by the driller, and pressure transducer is installed in the outlet end of rig floor high pressure vertical tube.
The utility model compared with prior art has following useful effect: this device passes through pressure transducer, analogue signal is delivered to the analog-to-digital conversion chip, change into digital signal, then digital signal is delivered in the microprocessor and handled, again data one tunnel are delivered to the display screen that nixie tube dynamically shows, make things convenient for the driller to observe.Setting value in its real data and the microprocessor compares, and sends logical consequence, drives auxiliary reclay, makes the action of slurry pump actuator, allows the slurry pump controller be the auxiliary reclay output signal, stops the work of slurry pump.The equipment that prevents damages because of overhigh pumping pressure, causes the generation of drilling failure.By this device, be that microprocessor installs special-purpose software, the scope of setting pressure easily, when the pressure of actual pressure and setting changes, the warning of sounding.
Description of drawings
Accompanying drawing is a working principle schematic block diagram of the present utility model.
Embodiment
Below in conjunction with embodiment the utility model is done further detailed description: referring to accompanying drawing, slurry pump adjustable in pressure digital display control gear, comprise display screen 5 and pressure transducer 1, pressure transducer 1 is connected with analog-to-digital conversion chip 2, microprocessor 3, arithmetic mean unit 4, display screen 5 and auxiliary reclay 6 successively.Display screen 5 is installed in by the driller, and pressure transducer 1 is installed in the outlet end of rig floor high pressure vertical tube.Auxiliary reclay 6 is in parallel with slurry pump actuator 7 and slurry pump controller by signaling line, stops the work of slurry pump by the slurry pump controller, and is safe and effective.Dedicated program software is installed in microprocessor 3, keyboard by microprocessor 3, can set and revise the pump pressure value of slurry pump and original pressure value of pressure transducer 1 arbitrarily, make the consistent of pump pressure value and display screen 4, pressure transducer 1 needn't be taken off from high pressure vertical tube again, easy to operate.
When the slurry pump motor is under the running state, pump pressure is when presetting maximum value, and microprocessor 3 can give a warning by sound alarm, tells the driller, and pump pressure is reminded the driller will fall pump and dashed, otherwise danger can occur near limiting value, and has warning light to show.If the driller does not also react, just during the value of reaching capacity, at this moment the slurry pump controller can send an output signal to pump pressure, makes the auxiliary reclay 6 must electric output, controls the motor speed of corresponding slurry pump, and motor is stopped.And the pump pressure maximum value of setting is lower than the unlatching value of mechanical type insurance pin, and like this, actual pump pressure does not reach the unlatching value of mechanical type insurance pin forever.
Claims (2)
1, slurry pump adjustable in pressure digital display control gear comprises display screen (5) and pressure transducer (1), it is characterized in that pressure transducer (1) is connected with analog-to-digital conversion chip (2), microprocessor (3), arithmetic mean unit (4) and auxiliary reclay (6) successively.
2, slurry pump adjustable in pressure digital display control gear according to claim 1 is characterized in that auxiliary reclay (6) is in parallel with slurry pump actuator (7) and slurry pump controller by signaling line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200230559U CN201358926Y (en) | 2009-03-04 | 2009-03-04 | Device for adjusting and controlling digital display of pressure of slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200230559U CN201358926Y (en) | 2009-03-04 | 2009-03-04 | Device for adjusting and controlling digital display of pressure of slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201358926Y true CN201358926Y (en) | 2009-12-09 |
Family
ID=41424689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200230559U Expired - Fee Related CN201358926Y (en) | 2009-03-04 | 2009-03-04 | Device for adjusting and controlling digital display of pressure of slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201358926Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177912A (en) * | 2020-09-23 | 2021-01-05 | 中油国家油气钻井装备工程技术研究中心有限公司 | Intelligent blowout prevention system and method for high-pressure slurry pump |
-
2009
- 2009-03-04 CN CNU2009200230559U patent/CN201358926Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112177912A (en) * | 2020-09-23 | 2021-01-05 | 中油国家油气钻井装备工程技术研究中心有限公司 | Intelligent blowout prevention system and method for high-pressure slurry pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20100304 |