CN210156910U - Electric leakage protection device for submersible electric pump well - Google Patents
Electric leakage protection device for submersible electric pump well Download PDFInfo
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- CN210156910U CN210156910U CN201921091975.4U CN201921091975U CN210156910U CN 210156910 U CN210156910 U CN 210156910U CN 201921091975 U CN201921091975 U CN 201921091975U CN 210156910 U CN210156910 U CN 210156910U
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Abstract
The utility model discloses an electric leakage protection device for an oil-submersible electric pump well, which comprises a box body and a bracket, wherein the bracket is connected to the bottom of the box body, and the electric leakage protection device also comprises a first cable connecting terminal which is arranged inside the box body; the second cable wiring terminal is arranged inside the box body; the third cable wiring terminal is arranged inside the box body; the power-off protection module is arranged on the inner side wall of the box body; the three-phase connecting line is connected in parallel between the power-loss protection module and the first cable connecting terminal, the second cable connecting terminal and the third cable connecting terminal; the utility model discloses an electrical pump well earth leakage protection device dives, the device contain the function can replace current electrical pump well cable junction box of diving completely, can ensure in time to get rid of behind the blowby gas of charge pump cable moreover, can prevent again that steam admission device is inside to the harm that the circuit caused, can avoid in the twinkling of an eye at the unusual outage of circuit simultaneously, because of the charge pump unit loses the electricity and causes overvoltage, overcurrent and injury unit.
Description
Technical Field
The utility model relates to an electric leakage protection device of oil-submersible electric pump well belongs to oil and natural gas oil recovery technology technical field.
Background
The cable junction box of the prior common submersible electric pump well is an important component of an electric pump system, and a cable coming out of the well is firstly connected to the junction box and then connected to an electric pump control cabinet through the junction box.
Among the prior art, chinese patent that patent number is CN 207910405U discloses "a waterproof cable terminal box, including upper cover and lower cover, still include dry box, micro fan, first connecting pipe, second connecting pipe and third connecting pipe, the utility model discloses a set up dry box and micro fan and be connected formation air circulation return circuit with the inside cavity of terminal box for steam in the terminal box can get rid of through dry box, and dry box is easily dismantled and assembled and is changed, does not influence the normal use of terminal box.
Among the prior art, chinese patent with patent number CN 206650393U discloses "a waterproof terminal box, including the box body, and cover in the lid at box body top, the box body includes the diapire, certainly integrative lateral wall that upwards extends the formation in the diapire outside, and by the diapire with the cavity that the lateral wall encloses establishes, the bottom surface integrated into one piece of cavity has the terminal module, and the product integration problem has been solved to this application waterproof terminal box.
In the prior art, chinese patent No. CN 207753400U discloses "a novel combined outdoor waterproof junction box, which includes a waterproof junction box, a waterproof gasket, a foundation pad block, and a bottom leg, where the waterproof gasket is disposed between the waterproof junction box and the foundation pad block, the waterproof junction box and the foundation pad block are connected by a first bolt, and the foundation pad block is connected with the bottom leg; the lower end of the basic cushion block is embedded into the ground, and the top surface of the basic cushion block is higher than the ground; the utility model is convenient to be maintained; even if problems occur, secondary construction is needed, and the operation is convenient; the damage probability of lines and equipment is reduced, the injury of personnel is avoided, and good social benefit and economic benefit are achieved.
The existing electric pump cable junction box with an open structure cannot effectively isolate seawater, fog and rain and snow, and the junction box is easy to topple in severe weather and is not suitable for use in a beach oilfield area; when the electric pump unit is suddenly powered off, the maximum overvoltage multiple can reach 4 times, and the main insulation and the turn-to-turn insulation of the motor are greatly damaged.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides an electric leakage protection device of oil-submersible electric pump well.
The utility model discloses an electric leakage protection device of submersible pump well, including box and support, the leg joint still includes in the bottom of box
The first cable wiring terminal is arranged inside the box body;
the second cable wiring terminal is arranged inside the box body;
the third cable wiring terminal is arranged inside the box body;
the power-off protection module is arranged on the inner side wall of the box body;
the three-phase connecting line is connected in parallel between the power-loss protection module and the first cable connecting terminal, the second cable connecting terminal and the third cable connecting terminal;
the ground cable is connected with a first cable wiring terminal, a second cable wiring terminal and a third cable wiring terminal respectively through three phases of the cable penetrating through one end of the box body;
the three phases of the cable penetrating through one end of the box body are respectively connected with the first cable wiring terminal, the second cable wiring terminal and the third cable wiring terminal;
the cable sealing body is arranged at the joint of the ground cable and the underground cable and the box body and is used for sealing the box body;
one end of the exhaust pipe is arranged in the box body, and the other end of the exhaust pipe is arranged outside the box body;
the waterproof exhaust valve is arranged at one end of the exhaust pipe arranged in the box body;
and the exhaust suspension valve is arranged at one end of the exhaust pipe arranged outside the box body.
Further, still include the enclosing cover, the enclosing cover is connected in the lateral wall of box dismantled.
Furthermore, the outer cover and the box body are both made of aluminum alloy materials.
Furthermore, a threaded hole is formed in the outer cover, and the outer cover is connected to the outer side wall of the box body through a bolt.
Further, a sealing ring is arranged between the outer cover and the box body.
Furthermore, the underground cable and the ground cable are arranged in a cable three-phase in the box body and are connected with the first cable wiring terminal, the second cable wiring terminal and the third cable wiring terminal to form a main circuit of the electric submersible pump unit.
Furthermore, the power loss protection module is connected in parallel with a main circuit loop of the submersible electric pump unit through a three-phase connecting wire.
Compared with the prior art, the utility model, the beneficial effects are that:
1. the device adopts waterproof sealing design, and cable connection business turn over hole adopts special cable seal, has strengthened junction box body's seal, uses the ageing resistance sealing washer between box and the enclosing cover, effectively prevents the entering of high wet steam and sea water.
2. According to the electric leakage protection device for the submersible electric pump well, the outer cover and the box body are made of aluminum alloy materials, so that the corrosion resistance and the structural strength are enhanced; adopt ageing resistance, high temperature resistant, low temperature resistant sealing washer between enclosing cover and the box, sealing performance is good, can effectively prevent the entering of sea water, fog, avoids first cable connecting terminal, second cable connecting terminal and third cable connecting terminal and loses the electricity protection module performance and produce the influence.
3. The oil-submersible electric pump well leakage protection device is characterized in that a special exhaust valve is arranged in a box body, and natural gas can be exhausted in time when the device generates natural gas; meanwhile, when seawater overflows the box body, the sealing structure can prevent external seawater from entering, and normal operation of the electric pump well is guaranteed.
4. The particular configuration of the exhaust pendant valve system prevents the slow immersion of water into the interior of the device after the device is dumped and immersed in the water due to the adverse weather, such as high winds, high waves, etc., when the device is normally held in place at the well site.
5. The unit power-off protection module is installed in the electric leakage protection device of the submersible electric pump well, when a power supply line is suddenly powered off, the power-off protection module can avoid instantaneous high voltage and large current impact generated by a circuit, and the protection device has a good protection effect on an electric pump unit which is aged and has low insulation resistance.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The parts in the drawings are marked as follows: 1. a box body; 2. a seal ring; 3. a power loss protection module; 4. A support; 5. a first cable connection terminal; 6. a second cable connection terminal; 7. a third cable connection terminal; 8. a waterproof exhaust valve; 9. an exhaust pipe; 10. an outer cover; 11. a cable seal body; 12. a three-phase connecting wire; 13. a downhole cable; 14. a ground cable; 15. a threaded hole; 16. An exhaust suspension valve.
Detailed Description
The electric leakage protector for submersible pump well as shown in figure 1 includes a box 1 and a bracket 4, the bracket 4 is connected to the bottom of the box 1, and the electric leakage protector also includes
The first cable wiring terminal 5 is arranged inside the box body 1;
the second cable connecting terminal 6 is arranged inside the box body 1;
the third cable connecting terminal 7 is arranged inside the box body 1;
the power-off protection module 3 is arranged on the inner side wall of the box body 1;
the three-phase connecting line 12 is connected in parallel between the power-loss protection module 3 and the first cable wiring terminal 5, the second cable wiring terminal 6 and the third cable wiring terminal 7;
the ground cable 14 is connected with the first cable wiring terminal 5, the second cable wiring terminal 6 and the third cable wiring terminal 7 respectively through three phases of a cable penetrating through one end of the box body 1;
the three phases of the underground cable 13, which penetrate through one end of the box body 1, are respectively connected with the first cable wiring terminal 5, the second cable wiring terminal 6 and the third cable wiring terminal 7;
the cable sealing body 11 is arranged at the joint of the surface cable 14 and the underground cable 13 and the box body 1 and is used for sealing the box body 1;
one end of the exhaust pipe 9 is arranged inside the box body 1, and the other end of the exhaust pipe is arranged outside the box body 1;
the waterproof exhaust valve 8 is arranged at one end of the exhaust pipe 9 arranged in the box body 1;
and an exhaust suspension valve 16 arranged at one end of the exhaust pipe 9 outside the box body 1.
The box body is characterized by further comprising an outer cover 10, wherein the outer cover 10 is detachably connected to the outer side wall of the box body 1.
The outer cover 10 and the box body 1 are both made of aluminum alloy materials.
The outer cover 10 is provided with a threaded hole 15, and the outer cover 10 is connected to the outer side wall of the box body 1 through a bolt.
A sealing ring 2 is arranged between the outer cover 10 and the box body 1.
The underground cable 13 and the ground cable 14 are arranged in the cable three phases in the box body 1 and are connected with the first cable connecting terminal 5, the second cable connecting terminal 6 and the third cable connecting terminal 7 to form a main circuit loop of the submersible electric pump unit.
The power-loss protection module 3 is connected in parallel with a main circuit loop of the submersible electric pump unit through a three-phase connecting wire 12.
The working principle is as follows: the electric leakage protection device of the submersible electric pump well adopts a waterproof sealing design, a special cable sealing body 11 is adopted for a cable wiring inlet and outlet hole, an anti-aging sealing ring 2 is used between the box body 1 and the outer cover 10, the sealing performance is good, seawater and mist can be effectively prevented from entering, the influence on the performances of a wiring terminal and a power-off protection module is avoided, the sealing protection performance is improved, the outer cover 10 and the box body 1 are made of aluminum alloy materials, and the corrosion resistance and the structural strength are enhanced; when natural gas overflows from the device, the natural gas can be discharged in time; meanwhile, when seawater overflows the box body 1, after the device is toppled and soaked in water due to severe weather such as strong wind, big waves and the like, the special structure of the exhaust suspension valve 16 system prevents water from slowly soaking into the device, a unit power-off protection module 3 is installed in the electric leakage protection device of the submersible electric pump well, when a power supply line is suddenly powered off, the power-off protection module 3 can avoid instantaneous high voltage and large current impact generated by a circuit, can avoid overvoltage and large current generated by the circuit, protects an electric pump unit from being damaged, and particularly has a good protection effect on the electric pump unit with aged insulation and low insulation resistance.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (7)
1. The utility model provides an electrical pump well earth leakage protection device dives, includes box (1) and support (4), the bottom at box (1), its characterized in that are connected in support (4): also comprises
The first cable wiring terminal (5) is arranged inside the box body (1);
the second cable wiring terminal (6) is arranged inside the box body (1);
the third cable wiring terminal (7) is arranged inside the box body (1);
the power-off protection module (3) is arranged on the inner side wall of the box body (1);
the three-phase connecting line (12) is connected in parallel between the power-loss protection module (3) and the first cable wiring terminal (5), the second cable wiring terminal (6) and the third cable wiring terminal (7);
the ground cable (14) is used for connecting three phases of a cable penetrating through one end of the box body (1) with the first cable wiring terminal (5), the second cable wiring terminal (6) and the third cable wiring terminal (7) respectively;
the three phases of the cable penetrating through one end of the box body (1) are respectively connected with the first cable wiring terminal (5), the second cable wiring terminal (6) and the third cable wiring terminal (7) through the underground cable (13);
the cable sealing body (11) is arranged at the joint of the surface cable (14) and the underground cable (13) and the box body (1) and is used for sealing the box body (1);
one end of the exhaust pipe (9) is arranged in the box body (1), and the other end of the exhaust pipe is arranged outside the box body (1);
the waterproof exhaust valve (8) is arranged at one end of the exhaust pipe (9) arranged in the box body (1);
and the exhaust suspension valve (16) is arranged at one end of the exhaust pipe (9) arranged outside the box body (1).
2. The electrical submersible pump well leakage protection device of claim 1, wherein: the box body is characterized by further comprising an outer cover (10), wherein the outer cover (10) is detachably connected to the outer side wall of the box body (1).
3. The electrical submersible pump well leakage protection device of claim 2, wherein: the outer cover (10) and the box body (1) are both made of aluminum alloy materials.
4. The electrical submersible pump well leakage protection device of claim 3, wherein: the outer cover (10) is provided with a threaded hole (15), and the outer cover (10) is connected to the outer side wall of the box body (1) through a bolt.
5. An electrical submersible pump well leakage protection device according to any of claims 2-4, characterized in that: and a sealing ring (2) is arranged between the outer cover (10) and the box body (1).
6. The electrical submersible pump well leakage protection device of claim 1, wherein: the underground cable (13) and the ground cable (14) are arranged in a cable three-phase position in the box body (1) and are connected with the first cable wiring terminal (5), the second cable wiring terminal (6) and the third cable wiring terminal (7) to form a main circuit of the submersible electric pump unit.
7. The electrical submersible pump well leakage protection device of claim 6, wherein: the power-loss protection module (3) is connected in parallel with a main circuit loop of the submersible electric pump unit through a three-phase connecting wire (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091975.4U CN210156910U (en) | 2019-07-12 | 2019-07-12 | Electric leakage protection device for submersible electric pump well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921091975.4U CN210156910U (en) | 2019-07-12 | 2019-07-12 | Electric leakage protection device for submersible electric pump well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210156910U true CN210156910U (en) | 2020-03-17 |
Family
ID=69765913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921091975.4U Active CN210156910U (en) | 2019-07-12 | 2019-07-12 | Electric leakage protection device for submersible electric pump well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210156910U (en) |
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2019
- 2019-07-12 CN CN201921091975.4U patent/CN210156910U/en active Active
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