CN204783594U - Pump control system is prevented suppressing by slush pump - Google Patents
Pump control system is prevented suppressing by slush pump Download PDFInfo
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- CN204783594U CN204783594U CN201520421927.2U CN201520421927U CN204783594U CN 204783594 U CN204783594 U CN 204783594U CN 201520421927 U CN201520421927 U CN 201520421927U CN 204783594 U CN204783594 U CN 204783594U
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Abstract
The utility model relates to a pump control system is prevented suppressing by slush pump, a control branch road motor operating switch including the series connection, the normally closed interlock and the ac contactor coil of control relay no. 2, branch road no. 2 includes the pressure relay and the auxiliary relay coil of establishing ties mutually, the select switch one end of branch road no. 3 is established ties with auxiliary relay's the normally open contact no. 1 and the coil of control relay no. 1 in proper order mutually, and the other end is established ties with auxiliary relay's the normally open contact no. 2 and the coil of control relay no. 2 in proper order mutually, the normally open contact no. 1 of control relay no. 1 and auxiliary relay's normally open contact no. 1 connect in parallel, and the normally open contact no. 1 of control relay no. 2 and auxiliary relay's normally open contact no. 2 connect in parallel, branch road no. 4 is including two and two three solenoid valve's of normally open contact of the control relay no. 1 of establishing ties mutually coil, and two three solenoid valve control admitting air of gasbags, ac contactor's main contact is established ties between slush pump motor and converter. This system can reliably prevent to suppress the pump and take place.
Description
Technical field
The utility model relates to a kind of slurry pump, and particularly a kind of slurry pump is anti-suppresses pump control system, belongs to the safe supplementary equipment of oil and gas well drilling.
Background technique
Slurry pump is the heart that drilling well is produced, the equipment that is that Keep Clear-High Voltage.In running, occur sometimes because the reasons such as down-hole make operating slurry pump on original pump pressure basis, pump pressure raises suddenly, if now the safety relief valve of slurry pump is malfunctioning, can not slurry pump be stopped in time running again, slurry pump will be produced and to sprain pump phenomenon.Pump of spraining will cause following serious harm: 1, collapse in down-hole, even bit freezing is until full well is scrapped; 2, pump body or drilling tool sting bad; 3, slurry pump is scrapped; 4, sprained by high pressure and break and the equipment of hurting sb.'s feelings that flies out in slurry pump Bolt Connection position; 5, personal injury is caused.Therefore, the anti-pump of suppressing of slurry pump is a very important ring.
Traditional slurry pump usually adopts safety relief valve to carry out pressure release and reaches the object stoping pump of spraining, and when pump pressure exceedes safety relief valve setting value, arming pin piston is backed down, and pressure carries out pressure release from relief tube.In actual use, safety relief valve can run into following various problem:
1. when slurry pump is sprained and pressed, pump pressure raises rapidly, is difficult to Timeliness coverage, cannot termination of pumping in time.
2., after using a period of time, the pin of safety relief valve or spring there will be mechanical wear or mechanical fatigue, cause the setting value of safety relief valve to occur deviation or malfunctioning.
3. drilling well open-air atmosphere is severe, and safety relief valve and the arming pin stuck safety valve that causes that easily occurs getting rusty is malfunctioning.
4. safety relief valve often easily stings bad, and produces and cannot operate.
5. change the safety relief valve time long, change and once need nearly two hours, and take manpower.
Model utility content
The purpose of this utility model is, overcomes problems of the prior art, provides a kind of slurry pump to prevent suppressing pump control system, can prevent the generation of suppressing pump more reliably.
For solving above technical problem, a kind of slurry pump of the present utility model is anti-suppresses pump control system, comprise major loop and control loop, described major loop comprises the slurry pump motor by Frequency Converter Control, described control loop comprises stabilized power supply, the input end access 220VAC of described stabilized power supply, the output terminal of described stabilized power supply exports 24VDC, the first branch road is connected between 0VDC and 24VDC of described control loop, second branch road, 3rd branch road and the 4th branch road, described first branch road comprises the machine operation switch (S2) of connecting successively, the normally closed interlock of the second control relay (K21) and the coil of A.C. contactor (KM), described second branch road comprises the contact of the first pressure relay (KP1) be in series and the coil of auxiliary reclay (K1), described 3rd branch road comprises reset switch (S), selector switch (S1), first control relay (K11) and the second control relay (K21), described reset switch (S) is in series with the common end of described selector switch (S1), first selecting side of described selector switch (S1) is in series with first normally open contact (K1-1) of described auxiliary reclay and the coil of described first control relay (K11) successively, second selecting side of described selector switch (S1) is in series with second normally open contact (K1-2) of described auxiliary reclay and the coil of described second control relay (K21) successively, the two ends of first normally open contact (K11-1) of described first control relay are connected in the two ends of first normally open contact (K1-1) of described auxiliary reclay in parallel, and the two ends of first normally open contact (K21-1) of described second control relay are connected in the two ends of second normally open contact (K1-2) of described auxiliary reclay in parallel, described 4th branch road comprises second normally open contact (K11-2) of described first control relay and the electromagnetic valve coil (K0) of two-bit triplet solenoid valve (YV) of series connection mutually, and described two-bit triplet solenoid valve (YV) is connected between source of the gas and the air bag of slurry pump, the main contact of described A.C. contactor (KM) is connected between the output terminal of described slurry pump motor (M) and described frequency variator (VFD).
Relative to prior art, the utility model achieves following beneficial effect: 1. when slurry pump is by compressed air-driven, machine operation switch (S2) is in off state, selector switch (S1) is allocated to common end and the first selecting side is connected, when superpressure occurs after the first pressure relay (KP1) arrives setting pressure, the coil of auxiliary reclay (K1) obtains electric, first normally open contact (K1-1) of auxiliary reclay closes, the coil of the first control relay (K11) is made to obtain electric, first normally open contact (K11-1) of the first control relay is closed realizes self-insurance, second normally open contact (K11-2) of the first control relay closes, the electromagnetic valve coil of two-bit triplet solenoid valve (YV) (K0) is obtained electric, pressurized air enters air bag and drives slurry pump work.2. when slurry pump is driven by motor, machine operation of closing switch (S2), is allocated to common end by selector switch (S1) and the second selecting side is connected, and the coil of A.C. contactor (KM) obtains electric, the normally open contact of A.C. contactor (KM) closes, and slurry pump motor puts into operation; When there is superpressure in operation process, after first pressure relay (KP1) arrives setting pressure, the coil of auxiliary reclay (K1) obtains electric, second normally open contact (K1-2) of auxiliary reclay closes, the coil of the second control relay (K21) is made to obtain electric, first normally open contact (K21-1) of the second control relay is closed realizes self-insurance, the normally closed interlock of the second control relay (K21) disconnects, the coil losing electricity of A.C. contactor (KM), the normally open contact of A.C. contactor (KM) disconnects, and makes slurry pump motor stalling.3. adopt the mode precision of pressure relay detection slurry pump pump pressure high, highly sensitive, when there is pump surge, the very first time can carry out action, safe and reliable; Little to the dependence of natural environment and climate, can not because of dust storm, rainwater, cold and hot grade affects reliability.4. structure is simple, and installation and maintenance are convenient, adopts automation mechanized operation pattern, without the need to operator, releases labour force, and allowing operator energy be concentrated on other needs concentrated aspect.
As preferred version of the present utility model, also be connected in series with contact and the alarm buzzer (H2) of the second pressure relay (KP2) between 0VDC and 24VDC of described control loop, the setting pressure of described second pressure relay (KP2) is lower than described first pressure relay (KP1).Adopt two pressure relay pattern, before the first pressure relay (KP1) action, second pressure relay (KP2) first reaches setting pressure, alarm buzzer (H2) is given the alarm, operator are reminded to note, realize early-warning for high pressure, ultrahigh pressure cuts off the mode of power automatically, can effectively reduce because build the pressure the security incident caused.
As preferred version of the present utility model, common end and the second normally open contact (K21-2) and the protection act tutorial light (H3) that are connected with second control relay of mutually connecting between 0VDC of described selector switch (S1); 3rd normally open contact (K11-3) two ends of described first control relay are connected in the second normally open contact (K21-2) two ends of described second control relay in parallel.After first pressure relay (KP1) arrives setting pressure, the coil of auxiliary reclay (K1) obtains electric, second normally open contact (K1-2) of auxiliary reclay closes, the coil of the second control relay is obtained electric, second normally open contact (K21-2) of the second control relay closes, and protection act tutorial light (H3) lights; When the first control relay (K11) obtains electric, the 3rd normally open contact (K11-3) of the first control relay closes, and protection act tutorial light (H3) also lights.
As preferred version of the present utility model, between 0VDC and 24VDC of described control loop, be also connected with power supply indicator (H1).
As preferred version of the present utility model, the input end of described stabilized power supply is in series with power switch (S0).
As preferred version of the present utility model, the O mouth of source of the gas access two-bit triplet manually operated valve (Y1), the A mouth of described two-bit triplet manually operated valve (Y1) is connected with the O mouth of described two-bit triplet solenoid valve (YV), and the A mouth of described two-bit triplet solenoid valve (YV) is connected with the air bag of described slurry pump.When slurry pump is driven by motor, two-bit triplet manually operated valve (Y1) is in right working position, and P mouth and A mouth are connected, and O mouth is closed; When slurry pump is driven by air bag, first operator need the handle manipulating two-bit triplet manually operated valve to make two-bit triplet manually operated valve (Y1) be in left station, and O mouth and A mouth are connected, and P mouth is closed; When the coil (K0) of two-bit triplet solenoid valve (YV) obtains electric, P mouth and the A mouth of two-bit triplet solenoid valve (YV) are connected, and pressurized air enters air bag from gas source pipe, and then drive slurry pump work.
Accompanying drawing explanation
Be described in further detail the utility model below in conjunction with the drawings and specific embodiments, accompanying drawing only provides reference and explanation use, is not used to limit the utility model.
Fig. 1 is the schematic diagram that the utility model slurry pump prevents suppressing pump control system.
Fig. 2 is the leaf stomatal resistance figure of slurry pump.
In figure: S0. power switch; S1. selector switch; S. reset switch; S2. machine operation switch;
KP1. the first pressure relay; KP2. the second pressure relay; K1. auxiliary reclay; K11. the first control relay; K21. the second control relay; KM. A.C. contactor; H1. power supply indicator; H2. alarm buzzer; H3. protection act tutorial light; Y1. two-bit triplet manually operated valve; YV. two-bit triplet solenoid valve; K0. electromagnetic valve coil; M. slurry pump motor; G. air bag; VFD. frequency variator.
Embodiment
As depicted in figs. 1 and 2, slurry pump of the present utility model prevents that suppressing pump control system comprises major loop and control loop, major loop comprises the slurry pump motor by Frequency Converter Control, control loop comprises stabilized power supply, the input end access 220VAC of stabilized power supply, the input end of stabilized power supply is in series with power switch S0, and the output terminal of stabilized power supply exports 24VDC, is connected to the first branch road, the second branch road, the 3rd branch road and the 4th branch road between 0VDC and 24VDC of control loop.
First branch road comprises the normally closed interlock of machine operation switch S 2, second control relay K21 and the coil of A.C. contactor KM of connecting successively, is also connected with power supply indicator H1 between 0VDC and 24VDC of control loop.
Second branch road comprises the contact of the first pressure relay KP1 and the coil of auxiliary reclay K1 that are in series.Also be connected in series with contact and the alarm buzzer H2 of the second pressure relay KP2 between 0VDC and 24VDC of control loop, the setting pressure of the second pressure relay KP2 is lower than the first pressure relay KP1.Adopt two pressure relay pattern, before the first pressure relay KP1 action, second pressure relay KP2 first reaches setting pressure, alarm buzzer H2 is given the alarm, operator are reminded to note, realize early-warning for high pressure, ultrahigh pressure cuts off the mode of power automatically, can effectively reduce because build the pressure the security incident caused.
3rd branch road comprises reset switch S, selector switch S1, the first control relay K11 and the second control relay K21, the common end of reset switch S and selector switch S1 is in series, first selecting side of selector switch S1 is in series with the first normally open contact K1-1 of auxiliary reclay and the coil of the first control relay K11 successively, and second selecting side of selector switch S1 is in series with the second normally open contact K1-2 of auxiliary reclay and the coil of the second control relay K21 successively; The two ends of the first normally open contact K11-1 of the first control relay are connected in the two ends of the first normally open contact K1-1 of auxiliary reclay in parallel, and the two ends of the first normally open contact K21-1 of the second control relay are connected in the two ends of the second normally open contact K1-2 of auxiliary reclay in parallel.
Common end and the second normally open contact K21-2 and the protection act tutorial light H3 that are connected with second control relay of mutually connecting between 0VDC of selector switch S1; 3rd normally open contact K11-3 two ends of the first control relay are connected in the second normally open contact K21-2 two ends of the second control relay in parallel.
4th branch road comprises the second normally open contact K11-2 of the first control relay of mutually series connection and the electromagnetic valve coil K0 of two-bit triplet solenoid valve YV, two-bit triplet solenoid valve YV are connected between the air bag G of source of the gas and slurry pump; The main contact of A.C. contactor KM is connected between the output terminal of slurry pump motor M and frequency variator VFD.
The O mouth of source of the gas access two-bit triplet manually operated valve Y1, the A mouth of two-bit triplet manually operated valve Y1 is connected with the O mouth of two-bit triplet solenoid valve YV, and the A mouth of two-bit triplet solenoid valve YV is connected with the air bag G of slurry pump.
When slurry pump is by compressed air-driven, machine operation switch S 2 is in off state, selector switch S1 is allocated to common end and the first selecting side is connected, and operator need the handle manipulating two-bit triplet manually operated valve to make two-bit triplet manually operated valve Y1 be in left station, O mouth and A mouth are connected, and P mouth is closed.After there is the first pressure relay KP1 arrival setting pressure in superpressure, the coil of auxiliary reclay K1 obtains electric, first normally open contact K1-1 of auxiliary reclay closes, the coil of the first control relay K11 is made to obtain electric, first normally open contact K11-1 of the first control relay is closed realizes self-insurance, second normally open contact K11-2 of the first control relay closes, the electromagnetic valve coil K0 of two-bit triplet solenoid valve YV is made to obtain electric, P mouth and the A mouth of two-bit triplet solenoid valve YV are connected, pressurized air enters air bag from gas source pipe, and then drives slurry pump work.
When slurry pump is driven by motor, two-bit triplet manually operated valve Y1 is in right working position, and P mouth and A mouth are connected, and O mouth is closed; Machine operation of closing switch S 2, is allocated to common end by selector switch S1 and the second selecting side is connected, and the coil of A.C. contactor KM obtains electric, and the normally open contact of A.C. contactor KM closes, and slurry pump motor puts into operation.When there is superpressure in operation process, after first pressure relay KP1 arrives setting pressure, the coil of auxiliary reclay K1 obtains electric, second normally open contact K1-2 of auxiliary reclay closes, and makes the coil of the second control relay K21 obtain electric, and the first normally open contact K21-1 of the second control relay is closed realizes self-insurance, the normally closed interlock of the second control relay K21 disconnects, the coil losing electricity of A.C. contactor KM, the normally open contact of A.C. contactor KM disconnects, and makes slurry pump motor stalling.
After first pressure relay KP1 arrives setting pressure, the coil of auxiliary reclay K1 obtains electric, and the second normally open contact K1-2 of auxiliary reclay closes, and the coil of the second control relay is obtained electric, second normally open contact K21-2 of the second control relay closes, and protection act tutorial light H3 lights; When the first control relay K11 obtains electric, the 3rd normally open contact K11-3 of the first control relay closes, and protection act tutorial light H3 also lights.
The foregoing is only the better possible embodiments of the utility model, non-ly therefore limit to scope of patent protection of the present utility model.In addition to the implementation, the utility model can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.The utility model can pass through without the technical characteristics described or adopt existing techniques in realizing, does not repeat them here.
Claims (6)
1. a slurry pump is prevented suppressing pump control system, comprise major loop and control loop, described major loop comprises the slurry pump motor by Frequency Converter Control, described control loop comprises stabilized power supply, the input end access 220VAC of described stabilized power supply, the output terminal of described stabilized power supply exports 24VDC, it is characterized in that: be connected to the first branch road, the second branch road, the 3rd branch road and the 4th branch road between 0VDC and 24VDC of described control loop, described first branch road comprises machine operation switch (S2), the normally closed interlock of the second control relay (K21) and the coil of A.C. contactor (KM) of connecting successively, described second branch road comprises the contact of the first pressure relay (KP1) be in series and the coil of auxiliary reclay (K1), described 3rd branch road comprises reset switch (S), selector switch (S1), first control relay (K11) and the second control relay (K21), described reset switch (S) is in series with the common end of described selector switch (S1), first selecting side of described selector switch (S1) is in series with first normally open contact (K1-1) of described auxiliary reclay and the coil of described first control relay (K11) successively, second selecting side of described selector switch (S1) is in series with second normally open contact (K1-2) of described auxiliary reclay and the coil of described second control relay (K21) successively, the two ends of first normally open contact (K11-1) of described first control relay are connected in the two ends of first normally open contact (K1-1) of described auxiliary reclay in parallel, and the two ends of first normally open contact (K21-1) of described second control relay are connected in the two ends of second normally open contact (K1-2) of described auxiliary reclay in parallel, described 4th branch road comprises second normally open contact (K11-2) of described first control relay and the electromagnetic valve coil (K0) of two-bit triplet solenoid valve (YV) of series connection mutually, and described two-bit triplet solenoid valve (YV) is connected between source of the gas and the air bag of slurry pump, the main contact of described A.C. contactor (KM) is connected between the output terminal of described slurry pump motor (M) and described frequency variator (VFD).
2. slurry pump according to claim 1 is anti-suppresses pump control system, it is characterized in that: the contact and the alarm buzzer (H2) that are also connected in series with the second pressure relay (KP2) between 0VDC and 24VDC of described control loop, the setting pressure of described second pressure relay (KP2) is lower than described first pressure relay (KP1).
3. slurry pump according to claim 1 is anti-suppresses pump control system, it is characterized in that: common end and the second normally open contact (K21-2) and the protection act tutorial light (H3) that are connected with second control relay of mutually connecting between 0VDC of described selector switch (S1); 3rd normally open contact (K11-3) two ends of described first control relay are connected in the second normally open contact (K21-2) two ends of described second control relay in parallel.
4. slurry pump according to claim 1 is anti-suppresses pump control system, it is characterized in that: be also connected with power supply indicator (H1) between 0VDC and 24VDC of described control loop.
5. slurry pump according to claim 1 is anti-suppresses pump control system, it is characterized in that: the input end of described stabilized power supply is in series with power switch (S0).
6. slurry pump according to claim 1 is anti-suppresses pump control system, it is characterized in that: the O mouth of source of the gas access two-bit triplet manually operated valve (Y1), the A mouth of described two-bit triplet manually operated valve (Y1) is connected with the O mouth of described two-bit triplet solenoid valve (YV), and the A mouth of described two-bit triplet solenoid valve (YV) is connected with the air bag of described slurry pump.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520421927.2U CN204783594U (en) | 2015-06-18 | 2015-06-18 | Pump control system is prevented suppressing by slush pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520421927.2U CN204783594U (en) | 2015-06-18 | 2015-06-18 | Pump control system is prevented suppressing by slush pump |
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| CN204783594U true CN204783594U (en) | 2015-11-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980022A (en) * | 2018-09-14 | 2018-12-11 | 沧州市供水排水集团有限公司 | A kind of manual apparatus for fast switching of frequency converter pump |
| CN111636836A (en) * | 2020-05-13 | 2020-09-08 | 中石化石油工程技术服务有限公司 | Integrated control system of driller's platform |
| CN111984050A (en) * | 2020-09-15 | 2020-11-24 | 江西琰圭技术服务有限公司 | Novel intelligent voltage-stabilizing adjustment system |
| CN115434689A (en) * | 2022-09-16 | 2022-12-06 | 濮阳市百福瑞德石油科技有限公司 | Method for judging pump-holding-out of drilling pump in petroleum drilling engineering and pumping pressure protection system thereof |
-
2015
- 2015-06-18 CN CN201520421927.2U patent/CN204783594U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108980022A (en) * | 2018-09-14 | 2018-12-11 | 沧州市供水排水集团有限公司 | A kind of manual apparatus for fast switching of frequency converter pump |
| CN111636836A (en) * | 2020-05-13 | 2020-09-08 | 中石化石油工程技术服务有限公司 | Integrated control system of driller's platform |
| CN111636836B (en) * | 2020-05-13 | 2022-04-26 | 中石化石油工程技术服务有限公司 | Integrated control system of driller's platform |
| CN111984050A (en) * | 2020-09-15 | 2020-11-24 | 江西琰圭技术服务有限公司 | Novel intelligent voltage-stabilizing adjustment system |
| CN115434689A (en) * | 2022-09-16 | 2022-12-06 | 濮阳市百福瑞德石油科技有限公司 | Method for judging pump-holding-out of drilling pump in petroleum drilling engineering and pumping pressure protection system thereof |
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