CN213693217U - Drilling and repairing equipment alternating current and direct current lighting power supply linkage control circuit - Google Patents
Drilling and repairing equipment alternating current and direct current lighting power supply linkage control circuit Download PDFInfo
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- CN213693217U CN213693217U CN202022467090.9U CN202022467090U CN213693217U CN 213693217 U CN213693217 U CN 213693217U CN 202022467090 U CN202022467090 U CN 202022467090U CN 213693217 U CN213693217 U CN 213693217U
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Abstract
An alternating current and direct current lighting power supply linkage control circuit of drilling and repairing equipment comprises a control circuit, an alternating current power supply branch, a direct current power supply branch, a first lighting branch and a second lighting branch; the control circuit comprises an alternating current contactor KM1 coil and an alternating current contactor KM2 coil which are connected in parallel, and a switching power supply T1 is connected with the first lighting branch circuit through a normally open contact of an alternating current contactor KM 1; the direct-current power supply branch and the first lighting branch are connected through an alternating-current contactor KM1 normally closed contact; the first lighting branch and the second lighting branch are connected through a normally open contact of an alternating current contactor KM 2; through the matching of the alternating current contactors KM1 and KM2 of the control circuit, the auxiliary contacts realize that illumination is provided by alternating current when alternating current exists, illumination is provided by a direct current storage battery when no alternating current exists, the whole process is automatically converted and completed, and the control circuit is suitable for being popularized and used in operation illumination at night.
Description
Technical Field
The utility model relates to a drilling illumination field, especially a drilling rig exchanges and DC lighting power supply coordinated control circuit.
Background
At present, a drilling and repairing equipment lighting system used by an oilfield user at a well site usually introduces a path of alternating current power supply which is frequently supplied to meet the power supply requirement, when an accident condition such as disconnection of commercial power or frequent failure in supplying of external power occurs, the lighting can not be provided for the equipment, and field night field operation can not be smoothly carried out, so that a reliable lighting system which can prevent the loss of the alternating current power supply is particularly important.
Disclosure of Invention
The utility model aims to solve the technical problem that a drilling and repairing equipment exchanges and DC lighting power supply coordinated control circuit is provided, can realize incessant illumination through automatic control AC power supply and DC power supply's switching.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
an alternating current and direct current lighting power supply linkage control circuit of drilling and repairing equipment comprises a control circuit, an alternating current power supply branch, a direct current power supply branch, a first lighting branch and a second lighting branch;
the control circuit comprises an alternating current contactor KM1 coil and an alternating current contactor KM2 coil which are connected in parallel, and two ends of a parallel branch are connected with an alternating current power supply;
the alternating current power supply branch is provided with an AC/DC switching power supply T1, and the switching power supply T1 is connected with the first lighting branch through an alternating current contactor KM1 normally open contact;
the direct-current power supply branch and the first lighting branch are connected through an alternating-current contactor KM1 normally closed contact;
the first lighting branch and the second lighting branch are connected through a normally open contact of an alternating current contactor KM 2;
a plurality of direct current illuminating lamps are arranged on the first illuminating branch and the second illuminating branch.
The alternating current power supply branch comprises an alternating current circuit breaker QF1, the incoming line end of the alternating current circuit breaker QF1 is connected with an alternating current power supply, the outgoing line end of the alternating current circuit breaker QF1 is connected with an AC/DC switching power supply T1, and the alternating current circuit breaker QF1 is used for protecting the alternating current power supply branch and preventing electrical equipment faults caused by overlarge current of the alternating current power supply branch.
The outlet end of the alternating current breaker QF1 is connected with the control circuit.
The control circuit is provided with a circuit breaker QF2, the circuit breaker QF2 is connected with an outlet end of an alternating current circuit breaker QF1, and the circuit breaker QF2 is used for protecting the control circuit and preventing a contactor coil caused by the fact that the control circuit is too large from being damaged.
The direct-current power supply branch comprises a storage battery, and the storage battery is connected with a normally closed contact incoming line end of the alternating-current contactor KM 1.
A direct-current breaker QF3 is arranged between the storage battery and the normally closed contact of the alternating-current contactor KM1, and the direct-current breaker QF3 is used for protecting a direct-current power supply branch circuit and preventing the storage battery and an illuminating lamp of the first illuminating branch circuit from being damaged due to the fact that current on the direct-current power supply branch circuit is too large.
The control circuit is connected in parallel with an alternating current running indicator lamp H1, and the alternating current running indicator lamp H1 is used for indicating whether the alternating current power supply is in a working state.
The normally closed contact outlet end of the alternating current contactor KM1 is connected with a direct current running indicator lamp H2 in parallel, and the direct current running indicator lamp H2 is used for indicating whether a direct current power supply is in a working state or not.
The AC running indicator light H1 is connected in series with the fuse FU1, and the fuse FU1 is used for protecting the AC running indicator light H1.
The direct current running indicator lamp H2 is connected in series with the fuse FU2, and the fuse FU2 is used for protecting the direct current running indicator lamp H2.
The utility model provides a pair of drilling and repairing equipment exchanges and DC lighting power supply coordinated control circuit, ac contactor KM1 and KM 2's through control circuit cooperation, provide the illumination by exchanging when realizing having the alternating current through its auxiliary contact, provide the illumination by direct current battery when not having the alternating current, whole process automatic switch is accomplished, do not need the manual work to change, this control circuit utility components and parts are simple general, and can the automatic indication be alternating current supply or DC power supply at present, be fit for using widely in the operation illumination for night.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a circuit connection diagram of the present invention.
In the figure: the lighting device comprises a control circuit 1, an alternating current power supply branch 2, a direct current power supply branch 3, a first lighting branch 4, a second lighting branch 5 and a storage battery 6.
Detailed Description
As shown in fig. 1, an ac and dc lighting power supply linkage control circuit for drilling and repairing equipment comprises a control circuit 1, an ac power supply branch 2, a dc power supply branch 3, a first lighting branch 4 and a second lighting branch 5;
the control circuit 1 comprises an alternating current contactor KM1 coil and an alternating current contactor KM2 coil which are connected in parallel, and two ends of a parallel branch are connected with an alternating current power supply;
the alternating current power supply branch 2 is provided with an AC/DC switching power supply T1, and the switching power supply T1 is connected with the first lighting branch 4 through an alternating current contactor KM1 normally open contact;
the direct-current power supply branch 3 is connected with the first lighting branch 4 through an alternating-current contactor KM1 normally closed contact;
the first lighting branch 4 and the second lighting branch 5 are connected through a normally open contact of an alternating current contactor KM 2;
a plurality of direct-current illuminating lamps are arranged on the first illuminating branch 4 and the second illuminating branch 5.
As shown in fig. 1, the AC power branch 2 includes an AC circuit breaker QF1, an incoming line end of the AC circuit breaker QF1 is connected to an AC power source, an outgoing line end of the AC circuit breaker QF1 is connected to an AC/DC switching power source T1, and the AC circuit breaker QF1 is used for protecting the AC power branch 2 and preventing an electrical fault caused by an excessive current of the AC power branch 2.
As shown in fig. 1, the outlet terminal of the ac circuit breaker QF1 is connected to the control circuit 1.
As shown in fig. 1, the control circuit 1 is provided with a circuit breaker QF2, the circuit breaker QF2 is connected to an outlet terminal of the ac circuit breaker QF1, and the circuit breaker QF2 is used for protecting the control circuit 1 and preventing a contactor coil from being damaged due to an overlarge control circuit 1.
As shown in fig. 1, the dc power supply branch 3 includes a storage battery 6, and the storage battery 6 is connected to the inlet terminal of the normally closed contact of the ac contactor KM 1.
As shown in fig. 1, a dc breaker QF3 is arranged between the storage battery 6 and the normally closed contact of the ac contactor KM1, and the dc breaker QF3 is used for protecting the dc power branch 3 and preventing the lighting lamps of the storage battery 6 and the first lighting branch 4 from being damaged due to a large current flowing on the dc power branch 3.
As shown in fig. 1, an ac operation indicator H1 is connected in parallel to the control circuit 1, and an ac operation indicator H1 is used to indicate whether the ac power supply is in an operating state.
As shown in fig. 1, the normally closed contact outlet terminal of the ac contactor KM1 is connected in parallel with a dc operation indicator lamp H2, and the dc operation indicator lamp H2 is used for indicating whether the dc power supply is in an operating state.
As shown in fig. 1, the ac running indicator H1 is connected in series with fuse FU1, and fuse FU1 is used to protect ac running indicator H1.
As shown in fig. 1, the dc running light H2 is connected in series with fuse FU2, and fuse FU2 is used to protect dc running light H2.
The working principle of the control circuit is as follows:
first, well site external power supply mode
When the equipment needs illumination in operation, the breaker switches QF1, QF2 and QF3 are respectively closed, coils of the alternating current contactors KM1 and KM2 obtain the control voltage of AC220V, and four main contacts of the alternating current contactor KM1 act: the two normally open contacts become a closed state; the two normally closed contacts are in an open state, and the whole lighting loop is powered by external electricity of the well field through the closing action of the two normally open contacts of the alternating current contactor KM 1; meanwhile, two normally open contacts of the alternating current contactor KM2 become a closed state, so that the power supply loop of the lamp of the second lighting branch 5 is communicated. The system converts the input AC220V AC power into DC24V DC power by a switching power supply to supply power to the two sets of lighting fixtures in the first lighting branch 4 and the second lighting branch 5.
Second, storage battery power supply mode
Under the condition that power supply by an external electric power supply of the well field is unavailable, the control coils of the alternating current contactors KM1 and KM2 are not electrified, the contact points of the control coils do not change, and then the whole lighting loop introduces the power supply of the storage battery 6 through two normally closed contacts of the alternating current contactor KM1 to supply power to the lamp of the first lighting branch 4.
Claims (10)
1. The utility model provides a drilling equipment exchanges and DC lighting power supply coordinated control circuit which characterized by: the lighting device comprises a control circuit (1), an alternating current power supply branch (2), a direct current power supply branch (3), a first lighting branch (4) and a second lighting branch (5);
the control circuit (1) comprises an alternating current contactor KM1 coil and an alternating current contactor KM2 coil which are connected in parallel, and two ends of a parallel branch are connected with an alternating current power supply;
the alternating current power supply branch (2) is provided with an AC/DC switching power supply T1, and the switching power supply T1 is connected with the first lighting branch (4) through an alternating current contactor KM1 normally open contact;
the direct-current power supply branch (3) is connected with the first lighting branch (4) through an alternating-current contactor KM1 normally closed contact;
the first lighting branch (4) and the second lighting branch (5) are connected through a normally open contact of an alternating current contactor KM 2;
the first illumination branch (4) and the second illumination branch (5) are provided with a plurality of direct current illumination lamps.
2. The AC and DC lighting power supply linkage control circuit for drilling and repairing equipment according to claim 1, wherein the AC power branch (2) comprises an AC breaker QF1, the AC breaker QF1 is connected to an AC power supply at an incoming line end, the AC breaker QF1 is connected to an AC/DC switching power supply T1 at an outgoing line end, and the AC breaker QF1 is used for protecting the AC power branch (2) and preventing the AC power branch (2) from causing electrical appliance failure due to excessive current.
3. The ac and dc lighting power supply linkage control circuit of claim 2, wherein the ac breaker QF1 outlet is connected to the control circuit (1).
4. The interlocking control circuit of the alternating current and direct current lighting power supply of the drilling and repairing equipment as claimed in claim 3, characterized in that a breaker QF2 is arranged on the control circuit (1), the breaker QF2 is connected with an outlet terminal of an alternating current breaker QF1, and a breaker QF2 is used for protecting the control circuit (1) and preventing a contactor coil from being damaged due to the fact that the control circuit (1) is too large.
5. The coordinated control circuit of the AC and DC lighting power supplies of the drilling and repairing equipment as claimed in claim 1, characterized in that the DC power supply branch (3) comprises a storage battery (6), and the storage battery (6) is connected with a normally closed contact inlet end of an AC contactor KM 1.
6. The coordinated control circuit of the AC and DC lighting power supply of the drilling and repairing equipment as claimed in claim 5, characterized in that a DC breaker QF3 is arranged between the storage battery (6) and the normally closed contact of the AC contactor KM1, and the DC breaker QF3 is used for protecting the DC power branch (3) and preventing the lighting lamp of the storage battery (6) and the first lighting branch (4) from being damaged due to the current flowing on the DC power branch (3).
7. The ac and dc lighting power supply linkage control circuit for drilling and repairing equipment according to claim 1, wherein an ac running indicator lamp H1 is connected in parallel to the control circuit (1), and the ac running indicator lamp H1 is used for indicating whether the ac power supply is in an operating state.
8. The coordinated control circuit of AC and DC lighting power supply of drilling and repairing equipment as claimed in either one of claims 5 or 6, wherein said AC contactor KM1 has a DC running indicator lamp H2 connected in parallel with the normally closed contact outlet terminal, and the DC running indicator lamp H2 is used to indicate whether the DC power supply is in working condition.
9. The coordinated control circuit of AC and DC lighting power supply for under-drill equipment as claimed in claim 7, wherein said AC running indicator lamp H1 is connected in series with fuse FU1, fuse FU1 is used to protect AC running indicator lamp H1.
10. The coordinated control circuit of AC and DC lighting power supply for under-drill equipment as claimed in claim 8, wherein said DC running light H2 is connected in series with fuse FU2, fuse FU2 is used to protect DC running light H2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467090.9U CN213693217U (en) | 2020-10-30 | 2020-10-30 | Drilling and repairing equipment alternating current and direct current lighting power supply linkage control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022467090.9U CN213693217U (en) | 2020-10-30 | 2020-10-30 | Drilling and repairing equipment alternating current and direct current lighting power supply linkage control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213693217U true CN213693217U (en) | 2021-07-13 |
Family
ID=76726401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022467090.9U Active CN213693217U (en) | 2020-10-30 | 2020-10-30 | Drilling and repairing equipment alternating current and direct current lighting power supply linkage control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213693217U (en) |
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2020
- 2020-10-30 CN CN202022467090.9U patent/CN213693217U/en active Active
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