Boron powder spraying device for petroleum downhole tool

Abstract

The utility model discloses a petroleum downhole tool boron powder spraying device which comprises a supporting base, an annular conveying belt and a spraying box, a plurality of hanging pieces are arranged at the bottom of the annular conveying belt in a driving connection mode, boron powder spraying pipes with anions are arranged on the front two sides in the spraying box in a connected mode, and a plurality of spraying heads are arranged on the front sides of the boron powder spraying pipes in a connected mode. The bottom of the hanging piece is connected with a conductive metal hook, the inner side of the hanging piece is connected with an L-shaped conductive rod, the end of the L-shaped conductive rod is connected with a contact head, the top of the front side in the spraying box is connected with a conductive frame matched with the L-shaped conductive rod and the contact head, the bottom of the conductive frame is provided with a sliding groove matched with the contact head, and the inner side of the sliding groove is connected with an anode power supply board. Compared with the prior art, the boron powder spraying device has the advantages that the conveying belt is matched with the hanging piece and the conductive frame, anode conduction can be carried out during boron powder spraying, spraying and film covering are guaranteed, and meanwhile waste and attachment of redundant boron powder can be prevented through blowing and dust suction at the rear end.

Description

TECHNICAL FIELD

[0001] The utility model relates to petroleum downhole tool production equipment technical field, specifically point to a kind of petroleum downhole tool boron powder spraying device. BACKGROUND

[0002] Petroleum downhole tool refers to the tool used in downhole construction, generally divided into downhole operation construction tool, downhole production tool and operation overhaul tool.

[0003] In the production of downhole tool, boron powder spraying operation is often needed, and the boron powder film coating in the prior art generally has two ways, one is to heat downhole tool, then immerse in boron powder to perform hot melting film coating, and the other is to electrify cation of downhole tool, then spray anion-attached boron powder on downhole tool to perform film coating, but both of them are single type boron powder spraying operation, and the corresponding efficiency is not high, and the efficiency of downhole tool production is low for some large needs. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a high-efficiency petroleum downhole tool boron powder spraying device in view of the deficiencies in the above background art.

[0005] To solve the above technical problems, the technical scheme provided by the utility model is as follows: a petroleum downhole tool boron powder spraying device, comprising a supporting base, an annular conveying belt, the supporting base top is connected with a spraying box, the annular conveying belt is arranged through the spraying box, the annular conveying belt bottom is drivenly connected with a plurality of hangers, the spraying box is connected with a boron powder spraying pipe with anion on the front two sides, the boron powder spraying pipe is connected with a plurality of spraying heads on the front side, the hanger bottom is connected with a conductive metal hook, the hanger inner side is connected with an L-shaped conductive rod, the L-shaped conductive rod end is connected with a contact head, the spraying box front side top is connected with a conductive rack matched with the L-shaped conductive rod and the contact head, the conductive rack bottom is provided with a sliding groove matched with the contact head, and the sliding groove inner side is connected with an anode power supply plate.

[0006] The supporting base top rear end is connected with a blowing fan, and the spraying box rear end two sides are connected with dust removal exhaust fans matched with the blowing fans.

[0007] Further, the hanging piece comprises an upper metal connecting piece matched with the annular conveying belt and a lower metal connecting piece matched with the conductive metal hook and the L-shaped conductive rod, an insulating fiber reinforced plastic plate is arranged between the upper metal connecting piece and the lower metal connecting piece, an insulating fiber reinforced plastic cylinder wrapping the upper metal connecting piece and the lower metal connecting piece is arranged on the insulating fiber reinforced plastic plate, and fixing screws are arranged between the insulating fiber reinforced plastic cylinder and the upper metal connecting piece and the lower metal connecting piece, so that the insulation connection operation with the annular conveying belt is facilitated.

[0008] Further, V-shaped guide grooves matched with the sliding grooves are arranged at the two ends of the conductive frame, so that the contact head can be accurately and stably operated in the sliding groove.

[0009] Further, an air inlet channel matched with the blowing fan is arranged in the supporting base, and a dust filtering plate is arranged in the air inlet channel, so that the dust filtering operation is facilitated.

[0010] Further, a dust collecting cover matched with the dust discharging fan is arranged outside the spraying box, and a dust guide pipe is arranged outside the dust collecting cover, so that the excess dust can be discharged.

[0011] Compared with the prior art, the petroleum downhole tool boron powder spraying device has the following advantages: the device can realize anode conduction during boron powder spraying through the cooperation of the conveying belt, the hanging piece and the conductive frame, so that the spraying film is ensured, and the waste of excess boron powder and the adhesion of excess boron powder can be prevented through the rear end blowing and dust extraction. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a first structure schematic view of the petroleum downhole tool boron powder spraying device.

[0013] Figure 2 is a second structure schematic view of the petroleum downhole tool boron powder spraying device.

[0014] Figure 3 is a conductive frame structure schematic view of the petroleum downhole tool boron powder spraying device.

[0015] Figure 4 is a hanging piece structure schematic view of the petroleum downhole tool boron powder spraying device.

[0016] As shown in the figure: 1, support base; 2, spraying box; 3, ring transmission belt; 4, boron powder spraying pipe; 5, spraying head; 6, blowing fan; 7, dust exhaust fan; 8, air inlet channel; 9, dust filter plate; 10, hanging piece; 11, conductive metal hook; 12, L-shaped conductive rod; 13, contact head; 14, conductive frame; 15, sliding groove; 16, anode power supply plate; 17, V-shaped guide groove; 18, upper metal connecting piece; 19, insulating fiber reinforced plastic plate; 20, lower metal connecting piece; 21, insulating fiber reinforced plastic cylinder; 22, fixing screw; 23, wind collecting cover; 24, dust guide pipe. DETAILED DESCRIPTION

[0017] The utility model will be made further detailed explanation in combination with the drawings.

[0018] In combination with the drawings Figures 1-4 A boron powder spraying device for oil downhole tools, comprising a support base 1 and a ring transmission belt 3, the support base 1 is connected with a spraying box 2 at the top, the ring transmission belt 3 is arranged through the spraying box 2, the ring transmission belt 3 is connected with a plurality of hanging pieces 10 at the bottom, the spraying box 2 is connected with a boron powder spraying pipe 4 with anions at the front two sides, the boron powder spraying pipe 4 is connected with a plurality of spraying heads 5 at the front side, and the boron powder spraying pipe 4 is also provided with corresponding feeding pipes, gas pipes and cathode connection ends, so that boron powder with anions is sprayed out, which is a common prior art and will not be described in detail, the hanging piece 10 is connected with a conductive metal hook 11 at the bottom, the hanging piece 10 is connected with an L-shaped conductive rod 12 at the inner side, the L-shaped conductive rod 12 is connected with a contact head 13 at the end, the spraying box 2 is connected with a conductive frame 14 at the top of the front side, the conductive frame 14 is connected with the L-shaped conductive rod 12 and the contact head 13, the conductive frame 14 is provided with a sliding groove 15 at the bottom, the sliding groove 15 is connected with an anode power supply plate 16 at the inner side, and the conductive frame 14 is provided with a V-shaped guide groove 17 at both ends, that is, in actual use, workers are arranged at both ends of the equipment, one puts downhole tools and the other takes down the downhole tools after spraying, that is, the un-sprayed tools are hung on the conductive metal hook 11 and transmitted by the ring transmission belt 3, then the hanging piece 10 moves into the spraying box 2, the L-shaped conductive rod 12 and the contact head 13 pass through the conductive frame 14 and contact the anode power supply plate 16, so that the downhole tools can be supplied with cations, thereby cooperating with the boron powder with anions to perform spraying operation, and through the arrangement of the transmission belt, the rapid boron powder spraying operation of the downhole tools can be ensured.

[0019] The support base 1 is provided with a blowing fan 6 at the top rear end, and the spraying box 2 is provided with dust exhaust fans 7 matched with the blowing fan 6 at the rear end of both sides, the support base 1 is provided with air inlet channels 8 matched with the blowing fan 6, the air inlet channels 8 are provided with dust filter plates 9, the spraying box 2 is provided with air collecting hoods 23 matched with the dust exhaust fans 7 at the outer side, and the air collecting hoods 23 are provided with dust guide pipes 24 at the outer side, some unstable dust adheres to the tools during boron powder spraying, and a large amount of boron powder is sprayed at the front end, so that the dust can be discharged through the cooperation of the blowing fan 6 and the dust exhaust fan 7, the dust guide pipe 24 can be connected to an external collecting box, and the recycling operation is facilitated.

[0020] The hanging piece 10 comprises an upper metal connecting piece 18 matched with the annular conveying belt 3 at the top and a lower metal connecting piece 20 matched with the conductive metal hook 11 and the L-shaped conductive rod 12 at the bottom, the upper metal connecting piece 18 and the lower metal connecting piece 20 are connected with an insulating fiber reinforced plastic plate 19 therebetween, the insulating fiber reinforced plastic plate 19 is connected with insulating fiber reinforced plastic cylinders 21 wrapping the upper metal connecting piece 18 and the lower metal connecting piece 20 at the top and bottom, and the insulating fiber reinforced plastic cylinders 21 are connected with the upper metal connecting piece 18 and the lower metal connecting piece 20 with fixing screws 22 therebetween, the insulating fiber reinforced plastic plate 19 and the insulating fiber reinforced plastic cylinders 21 can prevent the current from entering the annular conveying belt 3 when the conductive frame 14 is powered.

[0021] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by the above description, without departing from the spirit of the present application, similar structural modes and embodiments can be designed without creative design, which should belong to the protection scope of the present application.

Claims

1. A kind of petroleum downhole tool boron powder spraying device, including support base (1), annular transmission belt (3), the top of the support base (1) is connected with spraying box (2), the annular transmission belt (3) is arranged through spraying box (2), the bottom of the annular transmission belt (3) is driven and connected with a plurality of hangers (10), the front two sides of the spraying box (2) are connected with boron powder spraying pipe (4) with anion, the front side of the boron powder spraying pipe (4) is connected with a plurality of spraying heads (5), it is characterized by: The hanging piece (10) is provided with a conductive metal hook (11) at the bottom, and is provided with an L-shaped conductive rod (12) at the inner side, and the end of the L-shaped conductive rod (12) is provided with a contact head (13), and the front side of the spraying box (2) is provided with a conductive frame (14) matched with the L-shaped conductive rod (12) and the contact head (13), and the bottom of the conductive frame (14) is provided with a sliding groove (15) matched with the contact head (13), and the inner side of the sliding groove (15) is provided with an anode power supply plate (16). The support base (1) is provided with a blowing fan (6) at the top rear end, and the spraying box (2) is provided with a dust removal exhaust fan (7) matched with the blowing fan (6) at the rear end of both sides.

2. A boron powder spray coating device for oilfield downhole tools according to claim 1, characterized in that: The hanging piece (10) includes an upper metal connecting piece (18) matched with the ring-shaped conveying belt (3) and a lower metal connecting piece (20) matched with the conductive metal hook (11) and the L-shaped conductive rod (12), and the upper metal connecting piece (18) and the lower metal connecting piece (20) are connected with an insulating fiber reinforced plastic plate (19), and the insulating fiber reinforced plastic plate (19) is connected with an insulating fiber reinforced plastic cylinder (21) wrapping the upper metal connecting piece (18) and the lower metal connecting piece (20), and the insulating fiber reinforced plastic cylinder (21) is connected with the upper metal connecting piece (18) and the lower metal connecting piece (20) with a fixing screw (22).

3. A boron powder spray coating device for oilfield downhole tools according to claim 1, characterized in that: The conductive frame (14) is provided with a V-shaped guide groove (17) matched with the sliding groove (15) at both ends.

4. The boron powder spray device for oil downhole tools according to claim 1, characterized in that: The support base (1) is provided with an air inlet channel (8) matched with the blowing fan (6) in the inside, and the air inlet channel (8) is connected with a dust filter plate (9) in the inside.

5. The boron powder spray device for oil downhole tools according to claim 1, characterized in that: The spraying box (2) is provided with a wind collecting cover (23) matched with the dust removal exhaust fan (7) at the outer side, and the wind collecting cover (23) is provided with a dust guide pipe (24) at the outer side.

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