CN116237316A - Automatic cleaning equipment for high-pressure water jet oil pumping pipe - Google Patents

Abstract

The invention provides automatic cleaning equipment for a high-pressure water jet oil suction pipe, which comprises a transverse moving longitudinal conveying mechanism, a cleaning conveying mechanism and a high-pressure jet flushing machine head, wherein the transverse moving longitudinal conveying mechanism comprises an out-of-bin conveying part and an in-bin conveying part and is used for longitudinally conveying the oil pipe into the cleaning conveying mechanism and reversely outputting the oil pipe, the cleaning conveying mechanism comprises a bracket, a sealed cabin, a high-pressure core pipe and a rotary nozzle assembly, the high-pressure core pipe and the rotary nozzle assembly comprise a hollow high-pressure core pipe and a fusiform guide seat, and the rotary nozzle assembly, the high-pressure jet flushing machine head comprises a machine head bracket, a machine head sealed box and an external annular jet flushing mechanism, and the transverse moving of the oil pipe is matched with the automatic longitudinal reciprocating movement in the operation process of the high-pressure jet flushing machine head for the inner wall and the outer wall of the oil pipe, so that the high-pressure jet flushing is completed in one time, and the cleaning efficiency is high.

Description

Automatic cleaning equipment for high-pressure water jet oil pumping pipe

Technical Field

The invention belongs to the technical field of oil pipe batch cleaning production lines, and particularly relates to high-pressure water jet oil pumping pipe automatic cleaning equipment.

Background

At present, most well flushing operations are on-site construction and are mainly used for treating substances attached to the inner wall of a pipe column, such as oil dirt, wax dirt, rust dirt or salt dirt, of a production pipe column of an oil and gas well, and the traditional cleaning mode has the problems of poor cleaning effect and easiness in environmental pollution. With the increasing of development difficulty of high-water-content oil fields and the continuous rising of ton oil cost, further increasing of restoration recycling force of recovery oil pipes from oil wells is a reuse measure for reducing production comprehensive cost of oil extraction plants, cleaning effect can be improved by independently cleaning oil pipes which are lifted out after oil well operation, and mainly two treatment modes are adopted, one mode is to manually convey the oil pipes (sucker rods) to the oil pipe plants for cleaning, and meanwhile convey a batch of cleaned oil pipes to an oil well operation site for downhole use, but the conventional oil pipe cleaning device on the market is high in cleaning cost and poor in cleaning effect, and the main influence factors are that the slender inner diameter of the oil pipes is small, the axial span is large, so that the cleaning positioning difficulty is high, and the cleaning cost is low; the other mode is to clean the oil pipe on site by using steam or hot water manually, and the oil pipe is used in a well after being cleaned relatively qualified, so that the environment is polluted, the energy consumption is high, the manual operation efficiency is low, the safety is poor and the operation cost is high.

In addition, the in-process of clearing up petrochemical pipe fitting among the prior art can't accomplish simultaneously to clear up the interior outer wall of pipe fitting in step, needs to accomplish through different washing steps, and on the one hand clearance inefficiency, on the other hand clearance means is single, and the clearance ability is poor. The invention patent with publication number of CN111659675A discloses a petroleum pipe inner and outer wall cleaning device, wherein two bearing frames for supporting petroleum pipe are fixedly connected to the inner wall in a cleaning tank, rollers are rotationally connected to the inner wall of the bearing frames, moving plates are connected to two sides of the bottom of the cleaning tank through first sliding rail pieces, and a driving unit for driving the moving plates to move forwards and backwards is connected to the bottom of the cleaning tank. The technical scheme aims at synchronously cleaning the inner wall and the outer surface of the petroleum pipe fitting, but adopts the structures such as the cleaning brush, the roll-over stand and the like, and has the problems of complex structure and low cleaning efficiency and high long-term operation and maintenance cost.

Based on the above, there is a need for a device for cleaning the inner and outer walls of a petroleum pipe simultaneously in a full process automation manner, so as to solve the above problems.

Disclosure of Invention

Aiming at the current situation that the existing oil pipe cleaning equipment lacks to simultaneously flush the inner wall and the outer wall of the oil pipe by high-pressure jet, the invention provides the automatic cleaning equipment for the high-pressure water jet oil pumping pipe, which can simultaneously flush the inner wall and the outer wall of the oil pipe by high-pressure jet in the processes of automatic transverse movement and longitudinal reciprocating movement of the oil pipe, and can finish one-time cleaning.

The invention solves the technical problems by adopting the scheme that: the automatic cleaning equipment for the high-pressure water jet oil suction pipe comprises a transverse longitudinal conveying mechanism, a cleaning conveying mechanism and a high-pressure jet flushing machine head, wherein the transverse longitudinal conveying mechanism comprises an out-bin conveying part and an in-bin conveying part and is used for longitudinally conveying an oil pipe into the cleaning conveying mechanism and reversely outputting the oil pipe; the high-pressure jet flushing machine head comprises a machine head support, a machine head sealing box and an external annular jet flushing mechanism, wherein the rotary nozzle assembly comprises a fixed joint, a bearing assembly and a rotary nozzle which are sequentially connected, an interface at the rear part of the fixed joint is connected to the front end of a high-pressure core pipe, the external annular jet flushing mechanism comprises a water supply supporting ring (pipe), radial nozzles and an outer ring water pipe, the water supply supporting ring is fixed with the machine head support through a connecting piece, the rotary nozzle is ensured to be positioned in the central area of the water supply supporting ring, holes are uniformly distributed on the inner wall of the water supply supporting ring and are respectively and hermetically provided with a plurality of radial nozzles, the outer side of the water supply supporting ring is provided with the holes and is hermetically connected with the outer ring water pipe, and the outer ring water pipe is connected with a high-pressure water source.

The oil pipe transverse moving and longitudinal conveying mechanism comprises carrier roller brackets, carrier roller brackets outside the carrier roller, an upstream oil pipe bracket, a downstream oil pipe bracket, an upstream jacking cylinder and a near-far end displacement sensor, wherein the two sides of the upper ends of the carrier roller brackets are sequentially arranged along the longitudinal direction, the carrier roller brackets outside the carrier roller brackets are respectively arranged through carrier roller bearing seats and are used for matching and supporting the oil pipe, a plurality of carrier roller brackets outside the carrier roller brackets simultaneously support the same oil pipe to move along the longitudinal direction, the near-end displacement sensor and the far-end displacement sensor are respectively arranged on the outer sides of the head carrier roller bracket and the tail carrier roller bracket, the transverse moving mechanism is provided with the upstream oil pipe bracket and the upstream jacking cylinder on one side of each carrier roller bracket, the other side is provided with the downstream oil pipe bracket and is provided with the downstream jacking cylinder, the oil pipe is transferred from the upstream oil pipe bracket to the outside the carrier roller brackets through the jacking support bearing seat on the upper end of the upstream jacking cylinder when the upstream jacking cylinder is lifted, and the transverse oil pipe is transversely transferred from the carrier roller brackets outside the carrier roller brackets on the upstream through the upper end of the jacking cylinder on the upper end of the upstream jacking cylinder, and the controller is used for controlling the forward rotation or reverse rotation or stop of the longitudinal movement driving motor and controlling the motion of each jacking cylinder.

The longitudinal driving mechanism comprises a longitudinal driving motor, a gearbox, a total transmission shaft, a plurality of gearboxes and an electric cabinet, wherein motor supports are integrally fixed with one side of the base, the longitudinal driving motor and the gearbox are installed on the supports, an output shaft of the gearbox is connected with the total transmission shaft, independent gearboxes are respectively installed on one side of each carrier roller support, the gearboxes are respectively provided with an input shaft and an output shaft, the input shafts are connected with the total transmission shaft, and the output shafts are connected with carrier roller shafts of carrier rollers outside the bins through couplings.

The jacking support comprises a bottom plate, a rear vertical plate and a wedge body, wherein the rear vertical plate is positioned at the rear side of the jacking support, the wedge body is positioned on the bottom plate, the rear side of the wedge body is higher than the front side, when an upstream jacking cylinder jacks up an oil pipe through the jacking support at the upper end of the upstream jacking cylinder, the oil pipe is blocked by the limiting baffle before the oil pipe is separated from the limiting baffle, and after the height of the oil pipe exceeds the limiting baffle, the wedge body positioned on the bottom plate of the jacking support can promote the oil pipe to roll to the front side and then falls into a positioning ring groove of an outer carrier roller of a bin.

The rotary spray head assembly comprises a fixed joint connected with the front end of the high-pressure core tube, a bearing assembly connected with the front end of the fixed joint, an axle center rotating tube is arranged in the bearing assembly through a bearing, the front end of the axle center rotating tube is provided with a rotary spray head, the front side, the middle side and the rear side of the circumference of the rotary spray head are respectively provided with a spray nozzle, and the axle center of each spray nozzle is communicated with the inner cavity of the rotary spray head along the tangential direction.

The device also comprises a jacking and positioning mechanism arranged at the upper part of the first carrier roller in the bin, the mechanism at least comprises a roller for fixing pressure on the high-pressure core tube or the oil tube downwards from the upper layer, and the mechanism is also provided with a driving mechanism for driving the roller to lift.

A nose sealing box is fixed on the inner side of a nose support, a side door and a fastener are arranged on one side of the tightness, a guide cover is arranged at the bottom of the sealing box, and a guide water tank is arranged at the bottom of the guide cover.

The front side or the rear side of each carrier roller support is transversely provided with a cleaning branch pipe, the end part of the corresponding carrier roller support is fixedly provided with a cleaning main pipe connecting seat, each connecting seat is connected with a main cleaning pipe, each cleaning branch pipe is respectively provided with a cleaning spray head, the opening and the closing of a valve on the main cleaning pipe are manually controlled according to cleaning requirements, or electromagnetic valves on the main cleaning pipe are regularly controlled by a controller, so that the surface of each carrier roller is regularly cleaned.

Each fusiform guide seat comprises a cylindrical section in the middle and conical sections at two ends, and the diameter of the cylindrical section is larger than the outer diameter of the high-pressure core pipe and smaller than the inner diameter of the oil pipe.

The invention has the beneficial effects that: the invention can realize the automation of transverse movement and longitudinal transportation of the oil pipe, and simultaneously, the automation of high-pressure jet flushing of the inner wall and the outer wall, thereby completing the cleaning operation at one time, saving the manpower and improving the working efficiency. The mechanism can automatically realize the transverse transfer of a plurality of oil pipes, and the reciprocating longitudinal conveying of a single oil pipe provides an auxiliary conveying function for the oil pipe cleaning process.

According to the invention, the rear end of the high-pressure core tube is fixed, the front end of the high-pressure core tube is suspended, the middle part of the high-pressure core tube is temporarily supported by the plurality of supporting parts, and after the oil tube penetrates through and is sleeved on the high-pressure core tube, the plurality of supporting parts in the middle part respectively support the lower part of the oil tube.

In the running process of the inner and outer wall high-pressure jet flushing machine head, when the oil pipe moves back and forth through the machine head, the oil pipe passes through the outer side of the rotary spray head and passes through the inner side of the water supply supporting ring, the inner rotary jet flushing mechanism is used for carrying out high-pressure jet rotary flushing on the inner wall of the passing oil pipe, and the plurality of radial spray heads on the inner side of the water supply supporting ring are used for carrying out high-pressure jet fixed flushing on the outer wall of the oil pipe. Therefore, when the oil pipe passes through the flushing machine head, the inner wall and the outer wall of the oil pipe can be ensured to simultaneously obtain a high-pressure flushing effect, the inner wall and the outer wall of the oil pipe can be respectively flushed at high pressure twice by the flushing machine head in the reciprocating process of the oil pipe, the flushing mode of the inner and outer matching has an automatic flushing function, the structure is simplified, the operation is easy, the one-time cleaning is finished, the cleaning efficiency is high, and the cleaning quality is good.

Drawings

FIG. 1 is a complete system architecture diagram of the present invention;

FIG. 2 is an internal structural view of the shelling and decoating bracket of FIG. 1;

FIG. 3 is a block diagram of the traversing mechanism of FIG. 1;

FIG. 4 is a partially enlarged block diagram of FIG. 3;

FIG. 5 is an enlarged partial block diagram of the jacking seat of FIG. 4;

FIG. 6 is a block diagram of a high pressure core tube and a rotary sprinkler assembly;

FIG. 7 is a partially enlarged block diagram of FIG. 6;

FIG. 8 is an internal block diagram of an inner and outer wall high pressure jet flushing head;

FIG. 9 is an enlarged partial block diagram of FIG. 8;

FIG. 10 is an internal structural view of the rotary jetting head;

fig. 11 is a structural view of the pressing positioning mechanism.

Reference numerals in the drawings: the traversing longitudinal conveying mechanism 1, the cleaning conveying mechanism 2, the high-pressure jet flushing machine head 3, the jacking positioning mechanism 4, the base 101, the carrier roller bracket 102, the carrier roller bearing seat 103, the out-of-bin carrier roller 104, the longitudinal moving driving motor 105, the gearbox 106, the total transmission shaft 107, the gearbox 108, the protection cover 109, the carrier roller shaft 110, the upstream oil pipe bracket 111, the downstream oil pipe bracket 112, the upper bracket inclined guide support 113, the limiting baffle 114, the lower bracket inclined guide support 115, the upstream jacking cylinder 116, the jacking support 117, the rear vertical plate 118, the wedge 119, the downstream jacking cylinder 120, the rotating rod 121, the overturning piece 122, the end extension support 123, the upright post 124, the near-end proximity switch 125a, the far-end proximity switch 125b, the electric cabinet 126, the cleaning branch pipe 127, the cleaning main pipe connecting seat 128, the cleaning nozzle 129, the upstream pipe storage support 130, the downstream pipe storage support 131, the high-pressure core pipe 201, the shuttle guide seat 202, fixed joint 203, bearing assembly 204, rotary head 205, fixed base 206, high pressure water joint 207, bearing block 208, bearing 209, support shaft 210, support shaft positioning ring groove 211, in-bin idler roller 212, idler positioning ring groove 213, nozzle 214, interface 215, axle center swivel 216, sealed bearing set 217, central channel 218, side branch channel 219, sealed capsule 220, cover plate 221, observation window 222, baffle 223, water trough 224, high pressure core tube holder 225, sealed end plate 226, in-bin longitudinal drive mechanism 227, head support 301, head seal box 302, side door 303, guide cover 304, auxiliary frame 305, fixed base 306, water supply support ring 307, radial head 308, outer ring water tube 309, sealing plate 311, bottom frame 401, top frame 402, bearing 403, support roller shaft 404, lower fixed 405, rotary drive mechanism 406, lifting frame 407, upper movable roller 408, guide post 409, return spring 410, top plate 411, lifting mechanism 412, support 413.

Description of the embodiments

The invention will be further described with reference to the drawings and examples.

Example 1: the automatic cleaning equipment for the high-pressure water jet oil suction pipe mainly comprises a transverse longitudinal conveying mechanism 1, a cleaning and conveying mechanism 2, a high-pressure jet flushing machine head 3, a jacking and positioning mechanism 4 and the like, and has the advantages of simplicity in operation and no environmental pollution.

The traversing longitudinal conveying mechanism 1 comprises an out-bin conveying part and an in-bin conveying part and is used for longitudinally feeding the oil pipe 10 into the cleaning conveying mechanism 2 and reversely outputting the oil pipe.

The oil pipe traversing and longitudinal conveying mechanism comprises an idler bracket 102, an idler bearing block 103, an out-of-bin idler 104, an upstream oil pipe bracket 111, a downstream oil pipe bracket 112, an upper bracket inclined guide support 113, a limit baffle 114, a lower bracket inclined guide support 115, an upstream jacking cylinder 116, a jacking support 117, a downstream jacking cylinder 120, a near-end proximity switch 125a, a far-end proximity switch 125b and the like.

Specifically, fig. 1 and 2 show that on the upper side of the base 101, two sides of the upper ends of six (number is not limited) carrier roller brackets 102 sequentially arranged along the longitudinal direction are respectively provided with an out-of-bin carrier roller 104 through carrier roller bearing seats 103, the middle part of each out-of-bin carrier roller 104 is provided with an annular concave area, and a positioning ring groove is arranged in the center of the concave area for matching and supporting the oil pipe 10.

The longitudinal drive mechanism includes a longitudinal movement drive motor 105, a gearbox 106, a final drive shaft 107 and a plurality of gearboxes 108, and an electric cabinet 126. As can be seen in fig. 1, a motor support is fixed integrally to one side of the base 101, on which a longitudinal movement driving motor 105 and a gearbox 106 are mounted, and an output shaft of the gearbox 106 is connected to a total transmission shaft 107. An independent gear box 108 is respectively installed on one side of each carrier roller bracket 102, each gear box 108 is respectively provided with an input shaft and an output shaft, for example, a worm and a worm wheel which are mutually meshed are respectively installed in the designed gear box 108, the worm is rotated to drive the worm wheel to rotate, each worm is connected with a longitudinal transmission shaft 107, and the worm wheel rotating shaft is connected with a carrier roller shaft 110 of each carrier roller outside a bin through a coupling. A cover 109 is mounted on the upper side of each section of the exposed portion of the longitudinal transmission shaft 107. The controller controls the longitudinal movement driving motor 105 to rotate forward or reversely or stop, and further synchronously controls the carrier rollers 104 outside the bin to transmit forward or reversely or stop.

Fig. 1 and 2 show that a plurality of outside-bin idlers 104 simultaneously support the same oil pipe for moving in the longitudinal direction, and that a proximal displacement sensor such as a proximal proximity switch 125a in the drawing and a distal displacement sensor such as a distal proximity switch 125b in the drawing are respectively mounted on the outer sides of the head and tail idler brackets 102. Specifically, an end extension support 123 is fixed on the outer side of the head or tail carrier roller support 102, an upright post 124 is vertically fixed on the end of the extension support 123, and each proximity switch is mounted on the top of the corresponding upright post 124.

When the outer carrier rollers 104 rotate forward to drive the oil pipe to move forward along the longitudinal direction, the controller controls the outer carrier rollers 104 to rotate reversely to drive the oil pipe to move backwards along the longitudinal direction according to the signals of the far-end displacement sensors when the far ends of the oil pipe are close to or contact with the far-end displacement sensors, and controls the oil pipe to pause according to the signals of the near-end displacement sensors when the near ends of the oil pipe are close to or contact with the near-end displacement sensors, and waits for the traversing mechanism to transfer the oil pipe and places the next oil pipe into each carrier roller.

As shown in fig. 3 and 4, the traversing mechanism is provided with an upstream oil pipe bracket 111 and an upstream jacking cylinder 116 on one side of the plurality of idler brackets 102, and a downstream oil pipe bracket 112 and a downstream jacking cylinder 120 on the other side. An upper bracket inclined guide support 113 is arranged at the upper end of the upstream oil pipe bracket 111, a limiting baffle 114 is arranged at the lower side of the upper bracket inclined guide support 113, and a lower bracket inclined guide support 115 is arranged at the upper end of the downstream oil pipe bracket 112, so that the lower side of the upper bracket inclined guide support 113 is higher than the upper side of the lower bracket inclined guide support 115. The upstream jacking cylinder 116 transfers the oil tube transversely to the outside carrier rollers through the jacking supports 117 at the upper ends thereof, and as can be seen from fig. 5, the jacking supports 117 comprise a bottom plate, a rear vertical plate 118 and a wedge-shaped body 119, the rear vertical plate 118 is positioned at the rear side of the jacking supports 117, the wedge-shaped body 119 is positioned on the bottom plate and the rear side is higher than the front side, so that when the upstream jacking cylinder 116 lifts the oil tube upwards through the jacking supports 117 at the upper ends thereof, the oil tube is blocked by the limiting stops 114 before the oil tube 10 breaks away from the limiting stops 114, but when the height of the oil tube exceeds the limiting stops 114, the wedge-shaped body 19 positioned at the bottom plate of the jacking supports 117 can promote the oil tube to roll towards the front side and then falls into the positioning ring groove of the outside carrier roller 104.

The controller controls the downstream jacking cylinder 120 to laterally transfer the tubing from each out-of-bin idler to the downstream tubing carrier 112, and simultaneously controls the jacking motion of the upstream jacking cylinder 116, after detecting the return of the tubing, based on the proximal displacement sensor signal. As can be seen from fig. 4, the top end of the push rod of the downstream jacking cylinder 120 is hinged with a turnover member 122, one side of the turnover member 122 is mounted on the downstream oil pipe bracket through a rotating rod 121, so that when the push rod of the downstream jacking cylinder 120 extends, the turnover member 122 can be driven to rotate around the rotating rod 121, and an arc-shaped groove is formed in the protruding portion of the top of the turnover member 122 for supporting the oil pipe.

When the oil pipe traversing and longitudinally conveying mechanism is applied, the oil pipe slides downwards along the upper bracket inclined guide support 113 at the top of the upstream oil pipe bracket 111 until the limiting baffle 114 stops and waits, and after the last oil pipe is removed from the carrier roller, the controller controls the push rod of the upstream jacking cylinder 116 to move upwards, so that the oil pipe is pushed upwards by the jacking support 117 to be separated from the limiting baffle 114, and then automatically slides into the positioning ring groove of each carrier roller. Then the controller controls the driving mechanism to drive the carrier rollers to rotate forwards along the longitudinal direction, when the oil pipe moves into the cleaning area along the longitudinal direction and is cleaned, after the far end of the oil pipe approaches and triggers the far-end proximity switch 125b, the controller controls the longitudinal movement driving mechanism to rotate reversely according to the far-end position signal, so that the oil pipe is pushed out from the cleaning area, when the near end of the oil pipe approaches and triggers the near-end proximity switch 125a, the controller controls the longitudinal movement driving mechanism to stop rotating, then controls the push rod of the downstream jacking cylinder 120 to extend, and then drives the overturning piece 122 to rotate along the rotary rod 121, so that the oil pipe is transferred onto the lower bracket inclined guide support 115 of the downstream oil pipe bracket 112, and falls to the bottom along with the lower bracket inclined guide support 115. Upstream deposit pipe holders may be butt-mounted on the upper sides of the upstream oil pipe holders 111, respectively, and downstream deposit pipe holders may be butt-mounted on the lower sides of the downstream oil pipe holders 112.

The cleaning and conveying mechanism 2 comprises a support, a sealed cabin 220, a high-pressure core pipe and a rotary spray head assembly, wherein the high-pressure core pipe and rotary spray head assembly comprises a hollow high-pressure core pipe 201, a shuttle-shaped guide seat 202 and the rotary spray head assembly, the middle part of the high-pressure core pipe 201 is sleeved with a plurality of shuttle-shaped guide seats 202, the rear end of the high-pressure core pipe 201 is arranged on a fixing frame through a fixing seat 206, the middle part of the high-pressure core pipe 201 is supported by a supporting part, and the front end of the high-pressure core pipe 201 is suspended and connected with the rotary spray head assembly.

Specifically, as shown in fig. 1, the high-pressure core tube 201 is in a hollow tubular structure, the rear end of the high-pressure core tube 201 is mounted on the fixing frame through the fixing seat 206, the middle part of the high-pressure core tube 201 is supported by the supporting component, and the front end of the high-pressure core tube 201 is suspended and connected with the rotary spray head assembly. The upper end of each carrier roller bracket is respectively provided with an in-bin carrier roller 212 through a bearing, the middle part of each in-bin carrier roller 212 is provided with an annular concave area, and a carrier roller positioning ring groove 213 is arranged in the center and used for supporting the front end of the high-pressure core tube 201 and supporting the lower part of the sleeved oil pipe.

In fig. 2-4, there are shown a plurality of shuttle guides 202 installed in the middle of the high pressure core tube 201, each shuttle guide 202 including a cylindrical section in the middle and tapered sections at both ends, the diameter of the cylindrical section being larger than the outer diameter of the high pressure core tube 201 and smaller than the inner diameter of the oil tube. The oil pipe 10 is driven to approach to one side of the high-pressure core pipe 201 by the carrier rollers outside the bin, the high-pressure core pipe 201 is positioned on the upper side of each carrier roller in the bin, and when the oil pipe 10 is inserted backwards from the front end (suspension end) of the high-pressure core pipe 201, as shown in fig. 1, the first fusiform guide seat 202 can guide and support the oil pipe 10, so that the high-pressure core pipe 201 and the oil pipe are ensured to be approximately coaxial. The cylindrical section of the shuttle 202 contacts the inner wall of the tubing and, due to the small contact area, has negligible resistance to the tubing. In the continuous moving and propelling process of the oil pipe, the oil pipe is gradually sleeved on the outer side of the high-pressure core pipe 201, namely sequentially sleeved on the outer side of the fusiform guide seat, and the lower part of the surface of the oil pipe is supported in the positioning ring groove of the carrier roller 212 in the bin.

As shown in fig. 3, on the front side of the first inner bin carrier roller 212, a supporting shaft assembly is further provided, that is, bearing seats 208 and bearings 209 are respectively installed on two sides of the bracket, two ends of the supporting shaft 210 are respectively installed in the corresponding bearings, and a supporting shaft positioning ring groove 211 is provided in the middle of the supporting shaft 210 and is used for supporting the front end of the high-pressure core tube 201 and the lower part of the sleeved oil pipe.

As shown in fig. 3 and 4, the rotary nozzle assembly includes a fixed joint 203 connected to the front end of a high-pressure core pipe 201, a bearing assembly 204 connected to the front end of the fixed joint 203, an axial rotation pipe installed in the bearing assembly 204 through a bearing, a rotary nozzle 205 installed at the front end of the axial rotation pipe, nozzles installed at the front, middle and rear sides of the circumference of the rotary nozzle 205, and the axial center of each nozzle is tangentially connected to the inner cavity of the rotary nozzle 205.

The rear end of the high-pressure core pipe 201 is connected with a high-pressure water source through a high-pressure water connector 207, and the high-pressure water sequentially flows through the bearing 209 in the inner cavity of the fixed seat 206, the axis rotating pipe and the inner cavity of the rotary spray head 205 forwards through the pipe cavity of the high-pressure core pipe 201 and then is sprayed out from each spray nozzle, so that the rotary spray head is driven to rotate continuously in the spraying process of the high-pressure water.

The high-pressure core tube and the rotary nozzle assembly are arranged in the closed bin of the oil pipe cleaning system and are positioned on the upper side of the carrier rollers in each bin, wherein the rear end of the high-pressure core tube is fixed, the front end and the middle part of the high-pressure core tube are carried on the carrier rollers in the corresponding bins, so that the high-pressure core tube can be smoothly sleeved on the outer side of the high-pressure core tube under the positioning action of the annular groove in the middle part of each carrier roller when the oil pipe moves backwards. In the sleeving process of the oil pipe to the high-pressure core pipe, the rotary nozzle assembly positioned at the front end of the high-pressure core pipe can uniformly spray high-pressure jet water to the periphery and continuously rotate, so that the oil pipe inner wall passing through the rotary nozzle assembly can be subjected to one-time high-pressure flushing. Also, the inner wall of the oil pipe is flushed by a second high pressure when it passes through the rotary sprayer assembly again as the oil pipe is pushed out. The fusiform guide seat 202 can support and guide the oil pipe to slide, and can keep fit clearance between the oil pipe and the rotary spray head, so that uniform high-pressure jet flushing is realized.

The high-pressure jet flushing machine head 3 comprises a machine head support 301, a machine head sealing box 302 and an external annular jet flushing mechanism, the rotary nozzle assembly comprises a fixed connector 203, a bearing assembly 204 and a rotary nozzle 205 which are sequentially connected, an interface 215 at the rear part of the fixed connector 203 is connected to the front end of a high-pressure core pipe, the external annular jet flushing mechanism comprises a water supply support ring 307, radial nozzles 308 and an outer annular water pipe 309, the water supply support ring 307 is fixed with the machine head support 301 through a connecting piece, the rotary nozzle 205 is ensured to be positioned in the central area of the water supply support ring 307, openings are uniformly distributed on the inner wall of the water supply support ring 307 and are respectively provided with a plurality of radial nozzles 308 in a sealing mode, the outer side of the water supply support ring 307 is provided with the openings and is connected with the outer annular water pipe 309 in a sealing mode, and the outer annular water pipe 309 is connected with a high-pressure water source.

The bearing assembly 204 includes a sealed housing, an axial swivel 216, and a sealed bearing set 217, which are nested one after the other. The front part of the fixed joint 203 is fixedly connected with the sealed shell of the bearing assembly, the front end of the axle center rotary pipe 216 is fixedly connected with the main body of the rotary spray head 205, a central channel 218 (inner cavity) is arranged at the axial position of the rotary spray head 205, side branch channels 219 are respectively arranged in the front, middle and rear directions in the side wall of the main body of the rotary spray head 205, and a nozzle 214 is respectively arranged on each side branch channel 219.

As shown in fig. 2 and 3, the outer annular jet flushing mechanism comprises a water supply support ring 307, radial jets 308 and an outer annular water tube 309. Wherein the water supply support ring 307 is secured to the handpiece mount 301 by a connector that ensures that the rotary sprayer 205 is positioned in a central region of the water supply support ring 307, including in the very center or front or rear of the center of the water supply support ring 307. The inner wall of the water supply support ring 307 is uniformly provided with holes and is respectively provided with a plurality of radial spray heads 308 in a sealing manner, the outer side of the water supply support ring 307 is provided with holes and is in sealing connection with the outer ring water pipe 309, and the outer ring water pipe 309 is connected with a high-pressure water source.

When the high-pressure jet flushing head with the inner wall and the outer wall of the embodiment is used, the oil pipe passes through the outer side of the rotary spray head 205 and passes through the inner side of the water supply support ring 307, namely, the inner rotary jet flushing mechanism is utilized to perform high-pressure jet rotary flushing on the inner wall of the passing oil pipe, and meanwhile, the plurality of radial spray heads 308 on the inner side of the water supply support ring 307 are utilized to perform high-pressure jet fixed flushing on the outer wall of the oil pipe. Therefore, when the oil pipe passes through the flushing machine head, the inner wall and the outer wall of the oil pipe can be ensured to simultaneously obtain a high-pressure flushing effect, the inner wall and the outer wall of the oil pipe can be respectively flushed at high pressure for two times by using the flushing machine head in the reciprocating process of the oil pipe, and the flushing mode of the inner and outer matching has an automatic flushing function, so that the oil pipe flushing machine head has the advantages of simple structure, easiness in implementation, high flushing efficiency and good effect.

In order to ensure that high-pressure water does not pollute the environment during flushing, a machine head sealing box 302 is fixed on the inner side of a machine head support 301, a side door 303 and a fastener are arranged on one side of the sealing performance, as shown in fig. 1, a guide cover 304 is arranged at the bottom of the sealing box, and a guide water tank (not shown in the figure) is arranged at the bottom of the guide cover 304. Sealing plates 311 are respectively arranged at the hole positions of the inlet and outlet of the box body, and through holes are arranged at the centers of the sealing plates so as to facilitate the oil pipe to pass through.

The device also comprises a jacking and positioning mechanism 4 arranged at the upper part of the first carrier roller in the bin, and the mechanism at least comprises a roller which is used for fixing pressure on the high-pressure core tube or the oil tube from the upper layer downwards. Further, the mechanism can be provided with a driving mechanism for driving the roller to lift. The mechanism can ensure that clamping driving force is provided for the end part of the oil pipe when the oil pipe returns, so that the oil pipe is separated from the outer side of the high-pressure core pipe, and the moving stability of the oil pipe is ensured.

Example 2: on the basis of embodiment 1, cleaning branch pipes 127 are transversely arranged on the front side or the rear side of each carrier roller support 102, cleaning main pipe connecting seats 128 are fixed at the end parts of the corresponding carrier roller supports 102, each connecting seat is connected with a main cleaning pipe, cleaning spray heads are respectively arranged on each cleaning branch pipe 127, and the opening and closing of valves on the main cleaning pipe are manually controlled according to cleaning requirements, or electromagnetic valves on the main cleaning pipe are regularly controlled by a controller, so that the surface of each carrier roller is regularly cleaned.

Example 3: one implementation form of the jacking positioning mechanism 4 is shown in fig. 11, and the jacking positioning mechanism comprises a bottom frame 401 and a top frame 402, wherein the top frame 402 is of a rectangular frame structure, bearing blocks and bearings 403 are respectively arranged on two sides of the top frame 402, a lower fixed carrier roller 405 is positioned at the lower part of the top frame 402, carrier roller shafts 404 on two sides of the lower fixed carrier roller are respectively arranged in the corresponding bearings 403, and shaft ends of one side of the carrier roller shafts 404, which are led out outwards, are in transmission connection with a rotary driving mechanism 406 through a shaft coupling.

A lifting mechanism 412 is mounted above the upper top plate 411 of the top frame 402, a lifting frame 407 is provided below the upper top plate 411, the lifting mechanism 412 is a cylinder or an electric push rod, for example, the lower end of the telescopic rod penetrates through the top plate hole and then is connected to the lifting frame 407, and an upper movable roller 408 is mounted below the lifting frame 407. Guide posts 409 are respectively sleeved on two sides of the lifting frame 407 in a penetrating manner, return springs 410 are sleeved on the outer sides of the guide posts 409, the return springs 410 are supported between the lifting frame 407 and the support 413, and the support 413 is fixed on two side walls of the top frame 402. The jacking positioning mechanism 4 can ensure that clamping driving force is provided for the end part of the oil pipe when the oil pipe returns, so that the oil pipe is separated from the outer side of the high-pressure core pipe, and the moving stability of the oil pipe is ensured. A proximity switch (or other displacement sensor) for monitoring the travel of the front end of the oil pipe is mounted in front of the top frame 402, and when the controller determines the position of the front end of the oil pipe based on the sensing signal of the proximity switch, the controller controls the lifting mechanism 412 to move the lifting frame 407 downward, and further moves the upper movable roller 408 downward. When the front end of the oil pipe advances to be positioned above the lower fixed carrier roller 405, the upper movable roller 408 just contacts with the end of the oil pipe, so that the purpose of constant pressure transmission is achieved.

The above detailed description of the present invention is merely illustrative or explanatory of the principles of the invention and is not necessarily intended to limit the invention. Accordingly, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present invention should be included in the scope of the present invention.

Claims (9)

1. The automatic cleaning equipment for the high-pressure water jet oil suction pipe is characterized by comprising a transverse moving longitudinal conveying mechanism (1), a cleaning conveying mechanism (2) and a high-pressure jet flushing machine head (3), wherein the transverse moving longitudinal conveying mechanism (1) comprises an out-of-bin conveying part and an in-bin conveying part and is used for longitudinally conveying an oil pipe (10) into the cleaning conveying mechanism (2) and reversely outputting the oil pipe, the cleaning conveying mechanism (2) comprises a support, a sealed cabin (220), a high-pressure core pipe and a rotary nozzle assembly, the high-pressure core pipe and the rotary nozzle assembly comprise a hollow high-pressure core pipe (201) and a fusiform guide seat (202), a plurality of fusiform guide seats (202) are sleeved in the middle of the high-pressure core pipe (201), the rear end of the high-pressure core pipe (201) is arranged on the fixing frame through a fixing seat (206), the middle of the high-pressure core pipe (201) is supported by a supporting part, and the front end of the high-pressure core pipe (201) is suspended and connected with the rotary nozzle assembly; the high-pressure jet flushing machine head (3) comprises a machine head support (301), a machine head sealing box (302) and an external annular jet flushing mechanism, the rotary nozzle assembly comprises a fixed connector (203), a bearing assembly (204) and a rotary nozzle (205) which are sequentially connected, an interface (215) at the rear part of the fixed connector (203) is connected to the front end of a high-pressure core pipe, the external annular jet flushing mechanism comprises a water supply support ring (307), radial nozzles (308) and an external annular water pipe (309), the water supply support ring (307) is fixed with the machine head support (301) through a connecting piece, the rotary nozzle (205) is ensured to be located in the central area of the water supply support ring (307), openings are uniformly distributed on the inner wall of the water supply support ring (307) and are respectively provided with a plurality of radial nozzles (308) in a sealing mode, the outer side of the water supply support ring (307) is provided with the openings and is connected with the external annular water pipe (309), and the external annular water pipe (309) is connected with a high-pressure water source.

2. The automatic cleaning device for high-pressure water jet oil suction pipe according to claim 1, wherein the transverse moving longitudinal conveying mechanism (1) comprises a carrier roller bracket (102), an out-bin carrier roller (104), an upstream oil pipe bracket (111), a downstream oil pipe bracket (112), an upstream and downstream jacking cylinder and a near-far-end displacement sensor, the out-bin carrier roller (104) is respectively arranged on two sides of the upper end of the multi-carrier roller bracket (102) which is arranged in sequence along the longitudinal direction through carrier roller bearing blocks (103) and used for matching and supporting the oil pipe (10), the plurality of out-bin carrier rollers (104) simultaneously support the same oil pipe to move along the longitudinal direction, the near-end displacement sensor and the far-end displacement sensor are respectively arranged on the outer sides of the head and tail carrier roller brackets (102), the transverse moving mechanism is characterized in that the upstream oil pipe bracket (111) is arranged on one side of each carrier roller bracket (102) and is provided with an upstream jacking cylinder (116), the other side is provided with the downstream oil pipe bracket (112) and is provided with a downstream jacking cylinder (120), the upstream jacking cylinder (116) is used for transferring the oil pipe (111) from the upstream carrier roller bracket (104) to the upstream carrier roller bracket (104) through a jacking support (117) at the upper end when jacking, and is used for controlling the rotation of the upstream carrier roller bracket (104) to rotate from the upstream carrier roller bracket (104) to the out-end of the upstream carrier roller bracket (104) or to the transverse carrier roller bracket (104) in the transverse direction, and a controller for controlling the movement of each jacking cylinder.

3. The automatic cleaning equipment for the high-pressure water jet oil suction pipe, according to claim 1 or 2, characterized in that the longitudinal driving mechanism comprises a longitudinal moving driving motor (105), a gearbox (106), a total transmission shaft (107) and a plurality of gearboxes (108), and an electric cabinet (126), a motor support is integrally fixed on one side of the base (101), the longitudinal moving driving motor (105) and the gearbox (106) are installed on the support, an output shaft of the gearbox (106) is connected with the total transmission shaft (107), independent gearboxes (108) are installed on one side of each carrier roller support (102), an input shaft and an output shaft are respectively arranged on each gearbox (108), the input shaft is connected with the total transmission shaft (107), and the output shaft is connected with a carrier roller shaft (110) of each carrier roller outside a bin through a coupling.

4. The automatic cleaning device for high-pressure water jet oil extraction pipe according to claim 1, wherein the jacking support (117) comprises a bottom plate, a rear vertical plate (118) and a wedge body (119), the rear vertical plate (118) is positioned at the rear side of the jacking support (117), the wedge body (119) is positioned on the bottom plate and the rear side is higher than the front side, when the upstream jacking cylinder (116) jacks up the oil pipe through the jacking support (117) at the upper end of the upstream jacking cylinder, before the oil pipe (10) is separated from the limiting baffle (114), the oil pipe is blocked by the limiting baffle (114), and when the height of the oil pipe exceeds the limiting baffle (114), the wedge body (19) positioned on the bottom plate of the jacking support (117) can promote the oil pipe to roll to the front side and then falls into a positioning ring groove of the outer carrier roller (104).

5. The automatic cleaning device for the high-pressure water jet oil suction pipe according to claim 1, wherein the rotary spray head assembly comprises a fixed joint (203) connected with the front end of the high-pressure core pipe (201), a bearing assembly (204) connected with the front end of the fixed joint (203), an axle center rotating pipe is arranged in the bearing assembly (204) through a bearing, a rotary spray head (205) is arranged at the front end of the axle center rotating pipe, nozzles are respectively arranged at the front side, the middle side and the rear side of the circumference of the rotary spray head (205), and the axle center of each nozzle is tangentially communicated with the inner cavity of the rotary spray head (205).

6. The automatic cleaning equipment for the high-pressure water jet oil suction pipe according to claim 1, further comprising a jacking and positioning mechanism (4) arranged at the upper part of the first in-bin carrier roller, wherein the mechanism at least comprises a roller for fixing pressure on the high-pressure core pipe or the oil pipe from the upper layer downwards, and the mechanism is further provided with a driving mechanism for driving the roller to lift.

7. The automatic cleaning device for the high-pressure water jet oil suction pipe according to claim 1, wherein a machine head sealing box (302) is fixed on the inner side of a machine head support (301), a side door (303) and a fastener are arranged on one side of sealing performance, a guide cover (304) is arranged at the bottom of the sealing box, and a water guide groove is arranged at the bottom of the guide cover (304).

8. The automatic cleaning device for the high-pressure water jet oil suction pipe according to claim 1, wherein a cleaning branch pipe (127) is transversely arranged at the front side or the rear side of each carrier roller support (102), a cleaning main pipe connecting seat (128) is fixed at the end part of the corresponding carrier roller support (102), each connecting seat is connected with a main cleaning pipe, cleaning spray heads are respectively arranged on each cleaning branch pipe (127), the opening and closing of a valve on the main cleaning pipe are manually controlled according to cleaning requirements, or electromagnetic valves on the main cleaning pipe are regularly controlled by a controller, so that the surface of each carrier roller is regularly cleaned.

9. The automatic cleaning equipment for high-pressure water jet oil extraction pipes according to claim 1, characterized in that each spindle-shaped guide seat (202) comprises a cylindrical section in the middle and conical sections at both ends, the diameter of the cylindrical section being larger than the outer diameter of the high-pressure core pipe (201) and smaller than the inner diameter of the oil pipe.

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