Oil extraction wellhead device convenient to clean

Abstract

The utility model relates to the technical field of oil pipe cleaning, and discloses an oil extraction wellhead device convenient to clean, which comprises a shell and an oil pipe, the shell is fixedly connected to the upper surface of the oil pipe through bolts, a cleaning mechanism is arranged on the left side of the shell, and a drying mechanism is arranged on the right side of the shell. According to the oil extraction wellhead device convenient to clean, by arranging the cleaning mechanism and the rotating pipe, the lifting pipe can be driven to rotate, ascend and descend in the vertical direction, an oil pipe is sprayed, brushed and cleaned through a brush head and a spray head, manual cleaning is replaced, the labor cost is reduced, the operation steps during cleaning are simplified, and the cleaning efficiency is improved. And by arranging the drying mechanism, after cleaning is completed, hot air flow is jetted to the inner wall of the oil pipe to dry the inner wall of the oil pipe, or hot air flow is jetted to heat the oil pipe when the oil pipe is frozen due to the too low environment temperature, and use is not affected.

Description

TECHNICAL FIELD

[0001] The utility model relates to oil pipe cleaning technical field, concretely is a kind of oil production wellhead device convenient to clean. BACKGROUND

[0002] In the process of oil exploitation, pipeline and equipment can accumulate dirt, rust scale and so on due to long-term use, which not only affects production efficiency, but also may cause safety hazards, in the long-term use process of oil production pipeline, the solidification of oil sludge and rust scale in pipe can lead to the decrease of original pipe diameter, and the hydrogen sulfide gas produced by silt deposition in pipeline can not only cause environmental pollution, but also easily cause combustion and explosion risk, and the acid and alkali substances in wastewater can corrode the inner wall of pipeline, reducing the service life of pipeline.

[0003] According to the oil production wellhead device convenient to clean disclosed in Chinese patent (CN214576860U), a connecting port is provided, the outer wall of the connecting port is attached with a rubber ring, the outer wall of the rubber ring is fixedly connected with a wellhead, and a mounting mechanism is installed on the outer side of the connecting port. Through the cooperation between the wellhead, the connecting port, the shaft, the handle, the first bearing, the horizontal plate, the vertical plate, the first gear, the second gear, the first threaded rod, the shell, the sleeve, the sliding block, the sliding groove and the clamping groove, the second gear drives the first threaded rod to rotate in the shell through the meshing force between the first gear and the second gear. The rotation of the first threaded rod makes the sleeve slide outward in the sliding groove in the shell through the sliding block, the sleeves on both sides leave the clamping grooves on both sides of the wellhead, the wellhead can be separated from the connecting port, the wellhead can be cleaned comprehensively, the cleaning of the wellhead can be more thorough, the device cannot clean the wellhead as a whole, and the cleaning is not thorough. The utility model is convenient to clean, but only facilitates the disassembly of the oil production wellhead device, and manual cleaning of the oil pipe is still required after disassembly. Because the device mechanism is more, the cleaning step is increased, and the device needs to be reinstalled after cleaning. The steps required during cleaning are too cumbersome, the work efficiency is reduced, the required labor cost is large, and the wellhead mechanism can be damaged due to improper operation, which can even cause safety problems. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides an oil production wellhead device convenient to clean, which has the advantages of automatic cleaning of the oil pipe and heating and drying, solves the problems of high cost when using manual cleaning of the oil pipe, and safety accidents caused by improper operation of the manual cleaning and icing of the oil pipe due to low temperature.

[0006] (II) Technical scheme

[0007] In order to achieve the above-mentioned purpose of facilitating the user to use, the utility model provides the following technical scheme: a kind of oil wellhead device of easy cleaning, including shell and oil pipe, the shell is fixedly connected by bolt on the upper surface of the oil pipe, the left side of the shell is provided with the cleaning mechanism that can clean oil pipe, the right side of the shell is provided with the drying mechanism that can dry oil pipe after cleaning is completed;

[0008] The cleaning mechanism includes a water tank fixedly connected to the left side of the shell, a tee pipe is fixedly communicated with the center of the upper surface of the shell, the bottom end of the tee pipe penetrates the upper surface of the shell, the left end of the tee pipe is fixedly communicated with a water delivery pipe, a water pump is fixedly connected to the upper surface of the water tank, the water inlet end of the water pump is fixedly communicated with the water tank through a pipeline, the water outlet end of the water pump is fixedly communicated with the left end of the tee pipe through the water delivery pipe, a support plate is fixedly connected inside the shell, a rotating pipe is rotatably connected between the support plate and the top wall of the shell through a bearing, the tee pipe is rotatably communicated with the top end of the rotating pipe inside the shell, the bottom end of the rotating pipe penetrates and extends to the lower surface of the support plate, a limit block is fixedly connected to the bottom outside of the rotating pipe, a flexible hose is rotatably communicated with the bottom end of the rotating pipe through a sealing bearing, a spray head is fixedly communicated with the lower surface of the flexible hose, a lifting pipe is rotatably connected to the outside of the rotating pipe, a brush head is fixedly connected to the lower surface of the lifting pipe, a helical groove is formed in the inner wall of the lifting pipe, an electric motor is fixedly connected to the upper surface of the support plate, one end of the output shaft of the electric motor is engagedly connected with the rotating pipe through a gear.

[0009] Preferably, a water passage hole is formed in the upper surface of the spray head and is fixedly communicated with the flexible hose, eight spray nozzles are fixedly communicated with the outside of the spray head and are circumferentially arranged, and the eight spray nozzles are fixedly communicated with the water passage hole.

[0010] Preferably, bristles are fixedly connected to the outside of the brush head, and the bristles are stainless steel bristles.

[0011] Preferably, a placement hole is formed in the center of the upper surface of the brush head and penetrates the flexible hose.

[0012] Preferably, the limit block is slidably connected inside the helical groove, and the outer diameter of the limit block is adapted to the width of the helical groove.

[0013] Preferably, the drying mechanism includes a heating box fixedly connected to the right side of the shell, a fan is fixedly connected to the lower surface of the heating box, heating wires are fixedly connected inside the heating box, a filter screen and an activated carbon plate are sequentially fixedly connected inside the heating box from bottom to top, a gas delivery pipe is fixedly communicated with the left side of the upper surface of the heating box, and the other end of the gas delivery pipe is fixedly communicated with the right end of the tee pipe through a valve.

[0014] Preferably, the number of heating wires is five and is alternately distributed on the left and right inner walls of the heating box (three) beneficial effects

[0015] Compared with the prior art, the oil extraction wellhead device convenient to clean has the following beneficial effects:

[0016] 1. The oil extraction wellhead device convenient to clean, by setting the cleaning mechanism, driven by the motor, the rotating pipe can drive the lifting pipe to rotate and move up and down in the vertical direction, the brush head and the spray head are used for spraying water to clean the oil pipe, replacing manual cleaning, not only reducing the cost of using labor, but also simplifying the operation steps during cleaning, avoiding safety accidents caused by mistakes during manual operation.

[0017] 2. The oil extraction wellhead device convenient to clean, by setting the drying mechanism, after cleaning, hot air flow is sprayed to the inner wall of the oil pipe to dry the inner wall of the oil pipe, or hot air flow is sprayed to heat the oil pipe when the oil pipe is frozen due to too low ambient temperature, without affecting the use of the oil pipe. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a structural schematic view of the utility model;

[0019] Figure 2 is a structural schematic view of the cleaning mechanism shown in the utility model.

[0020] Figure 3 is a structural schematic view of the drying mechanism shown in the utility model.

[0021] Figure 4 is a top view structural schematic view of the spray head shown in the utility model.

[0022] Figure 5 is a top view structural schematic view of the brush head shown in the utility model.

[0023] In the figure: 1 shell, 2 cleaning mechanism, 3 drying mechanism, 4 oil pipe, 201 water tank, 202 water pump, 203 water delivery pipe, 204 three-way pipe, 205 motor, 206 rotating pipe, 207 support plate, 208 lifting pipe, 209 flexible hose, 210 brush head, 211 spray head, 212 limit block, 213 spiral groove, 301 fan, 302 heating box, 303 heating wire, 304 gas delivery pipe, 305 activated carbon plate, 306 filter screen. DETAILED DESCRIPTION

[0024] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments, based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of the utility model protection;

[0025] Please refer to Figures 1-5 The utility model provides the following technical scheme:

[0026] A kind of oil production wellhead device convenient for cleaning, including shell 1 and oil pipe 4, shell 1 is fixedly connected to the upper surface of oil pipe 4 by bolt, the left side of shell 1 is provided with the cleaning mechanism 2 that can clean oil pipe 4, the right side of shell 1 is provided with the drying mechanism 3 that can dry oil pipe 4 after cleaning is completed;

[0027] It needs to be explained that, the oil production wellhead device convenient for cleaning can replace manual operation by being provided with cleaning mechanism 2, the cleaning process is automated, reduce the cost of using manual, also reduce the probability of mistake.

[0028] Cleaning mechanism 2 includes water tank 201 fixedly connected to the left side of shell 1, the center of the upper surface of shell 1 is fixedly connected with tee pipe 204, the bottom end of tee pipe 204 penetrates the upper surface of shell 1, the left end of tee pipe 204 is fixedly connected with water delivery pipe 203, the upper surface of water tank 201 is fixedly connected with water pump 202, the water inlet end of water pump 202 is fixedly communicated with water tank 201 by pipeline, the water outlet end of water pump 202 is fixedly communicated with the left end of tee pipe 204 by water delivery pipe 203, the inside of shell 1 is fixedly connected with support plate 207, support plate 207 and the top wall of shell 1 are rotatably connected with rotating pipe 206 by bearing, tee pipe 204 is rotatably communicated with the top end of rotating pipe 206 in the inside of shell 1, the bottom end of rotating pipe 206 penetrates and extends to the lower surface of support plate 207, the bottom of the outer side of rotating pipe 206 is fixedly connected with limit block 212, the bottom end of rotating pipe 206 is rotatably communicated with flexible hose 209 by sealing bearing, the lower surface of flexible hose 209 is fixedly communicated with spray head 211, the outer side of rotating pipe 206 is rotatably connected with lifting pipe 208, the lower surface of lifting pipe 208 is fixedly connected with brush head 210, the inner wall of lifting pipe 208 is provided with helical groove 213, the upper surface of support plate 207 is fixedly connected with motor 205, one end of motor 205 output shaft is engagedly connected with rotating pipe 206 by gear;

[0029] The upper surface of the spray head 211 is provided with a water hole, and the water hole is fixedly communicated with the flexible hose 209. The outer side of the spray head 211 is fixedly communicated with eight spray nozzles arranged in a circumferential array, and the eight spray nozzles are fixedly communicated with the water hole. The brush head 210 is fixedly connected with brush hairs, and the brush hairs are stainless steel brush hairs. The upper surface of the brush head 210 is provided with a placement hole for the flexible hose 209 to penetrate. The limiting block 212 is slidingly connected in the spiral groove 213, and the outer diameter of the limiting block 212 is matched with the width of the spiral groove 213.

[0030] It should be noted that the spray head 211 is fixedly connected to the lower surface of the brush head 210. The outer diameter of the brush head 210 and the outer diameter of the spray head 211 are matched with the inner diameter of the oil pipe 4. Since the dirt on the inner wall of the oil pipe 4 is left by crude oil deposition, it is harder than other dirt. The cleaning effect of the plastic brush hair on the dirt is low, so the stainless steel brush hair is used to brush the dirt more strongly.

[0031] The drying mechanism 3 comprises a heating box 302 fixedly connected to the right side of the shell 1. The lower surface of the heating box 302 is fixedly connected with a fan 301. The inside of the heating box 302 is fixedly connected with heating wires 303. The inside of the heating box 302 is sequentially fixedly connected with a filter screen 306 and an activated carbon plate 305 from bottom to top. The left side of the upper surface of the heating box 302 is fixedly communicated with a gas conveying pipe 304. The other end of the gas conveying pipe 304 is fixedly communicated with the right end of the three-way pipe 204 through a valve.

[0032] The number of the heating wires 303 is five, and they are alternately distributed on the left and right inner walls of the heating box 302.

[0033] It should be noted that, in order to avoid the liquid in the water conveying pipe 203 flowing into the heating box 302 through the gas conveying pipe 304 during the cleaning stage, a valve is fixedly communicated between the gas conveying pipe 304 and the three-way pipe 204. The valve is closed during the cleaning stage to block the liquid. The five heating wires 303 are alternately distributed on the left and right inner walls of the heating box 302, which can block the gas entering the heating box 302 to some extent, so that the movement path of the gas in the heating box 302 is lengthened, and the heating effect is enhanced.

[0034] Working principle: when the oil pipe 4 needs to be cleaned, cleaning liquid is added to the water tank 201, then the water pump 202 is turned on to pump the cleaning liquid in the water tank 201 through the water pipe 203 into the three-way pipe 204. At this time, the valve at the right end of the three-way pipe 204 is closed, so the cleaning liquid cannot flow in and can only flow out from the bottom end of the three-way pipe 204 into the rotating pipe 206, then through the flexible hose 209 into the spray head 211, and then sprayed into the oil pipe 4. Then start the motor 205 to make the rotating pipe 206 also rotate forward and backward through the forward and reverse rotation of the motor 205. At this time, the limiting block 212 at the bottom of the rotating pipe 206 rotates, and since the limiting block 212 is slidingly connected inside the spiral groove 213, the lifting pipe 208 will make a rotating and lifting movement on the vertical line, and the brush head 210 and the spray head 211 will also make a rotating and lifting movement. The cleaning liquid sprayed by the spray head 211 first moistens the dirt on the inner wall of the oil pipe 4, and then the brush head 210 brushes the inner wall of the oil pipe 4 back and forth. After the brushing is completed, the water pump 202 is turned off, then the five heating wires 303 are started, the valve is opened, and then the fan 301 is turned on to send air into the heating box 302. The air is first filtered by the filter screen 306 and impurities are absorbed by the activated carbon plate 305, then heated into hot air by the five heating wires 303, and then flows into the three-way pipe 204 through the air pipe 304, and then flows into the rotating pipe 206 from the bottom end of the three-way pipe 204, and then flows into the spray head 211 through the flexible hose 209 and is sprayed from the nozzle to the inner wall of the oil pipe 4 to heat the position that has just been cleaned. The residual liquid evaporates and becomes dry when heated. If the oil pipe 4 is frozen, the heating wires 303 and the fan 301 can still be started to generate hot air that is sprayed from the spray head 211 to melt the ice layer on the frozen part, so that the oil pipe 4 can continue to be used.

[0035] In summary, the oil well mouth device convenient to clean is provided with a cleaning mechanism 2. The forward and reverse rotation of the motor 205 makes the rotating pipe 206 drive the lifting pipe 208 to make a rotating and lifting movement in the vertical direction, and the brush head 210 and the spray head 211 clean the oil pipe 4 by spraying water and brushing, replacing manual cleaning. This not only reduces the cost of using manual labor, but also simplifies the operation steps during cleaning and avoids safety accidents caused by mistakes during manual operation. The oil well mouth device convenient to clean is provided with a drying mechanism 3. After cleaning is completed, hot air is sprayed to the inner wall of the oil pipe 4 to dry the inner wall of the oil pipe 4, or hot air is sprayed to heat the oil pipe 4 when the oil pipe 4 is frozen due to too low ambient temperature, without affecting the use of the oil pipe 4.

[0036] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0037] While embodiments of the present application have been shown and described, it is to be understood that the embodiments described are merely divergences, modifications, replacements, and variations of the embodiments of the present application, and can be changed in many ways without departing from the principles and spirit of the present application.

Claims

1. An oil production wellhead assembly which is easy to clean, comprising a housing (1) and a tubing (4), characterized in that: The shell (1) is fixedly connected to the upper surface of the oil pipe (4) by bolts, the left side of the shell (1) is provided with a cleaning mechanism (2) capable of cleaning the oil pipe (4), and the right side of the shell (1) is provided with a drying mechanism (3) capable of drying the oil pipe (4) after cleaning. The cleaning mechanism (2) comprises a water tank (201) fixedly connected to the left side of the shell (1), a tee (204) fixedly communicated with the center of the upper surface of the shell (1), the bottom end of the tee (204) penetrating through the upper surface of the shell (1), a water delivery pipe (203) fixedly communicated with the left end of the tee (204), a water pump (202) fixedly connected to the upper surface of the water tank (201), the water inlet end of the water pump (202) fixedly communicated with the water tank (201) through a pipeline, the water outlet end of the water pump (202) fixedly communicated with the left end of the tee (204) through the water delivery pipe (203), a support plate (207) fixedly connected to the inside of the shell (1), a rotating pipe (206) rotatably connected between the support plate (207) and the top wall of the shell (1) through a bearing, the top end of the rotating pipe (206) inside the shell (1) rotatably communicated with the tee (204), the bottom end of the rotating pipe (206) penetrating through and extending to the lower surface of the support plate (207), a limiting block (212) fixedly connected to the bottom of the outer side of the rotating pipe (206), a telescopic hose (209) rotatably communicated with the bottom end of the rotating pipe (206) through a sealing bearing, a nozzle (211) fixedly communicated with the lower surface of the telescopic hose (209), a lifting pipe (208) rotatably connected to the outer side of the rotating pipe (206), a brush head (210) fixedly connected to the lower surface of the lifting pipe (208), a helical groove (213) formed in the inner wall of the lifting pipe (208), and a motor (205) fixedly connected to the upper surface of the support plate (207), one end of the output shaft of the motor (205) engagedly connected with the rotating pipe (206) through a gear.

2. An oil wellhead assembly that facilitates cleaning according to claim 1, wherein: The upper surface of the nozzle (211) is provided with a water passage hole fixedly communicated with the telescopic hose (209), and the outer side of the nozzle (211) is fixedly communicated with eight nozzles arranged in a circumferential array and fixedly communicated with the water passage hole.

3. An oil wellhead assembly that facilitates cleaning as defined in claim 1, wherein: The outer side of the brush head (210) is fixedly connected with brush hairs made of stainless steel.

4. An oil wellhead assembly that facilitates cleaning as defined in claim 1, wherein: The center of the upper surface of the brush head (210) is provided with a placement hole for the telescopic hose (209) to penetrate through.

5. An oil wellhead assembly that facilitates cleaning as defined in claim 1, wherein: The limiting block (212) is slidingly connected to the inside of the helical groove (213), and the outer diameter of the limiting block (212) is matched with the width of the helical groove (213).

6. An oil wellhead assembly that facilitates cleaning as defined in claim 1, wherein: The drying mechanism (3) includes a heating box (302) fixedly connected to the right side of the shell (1), the lower surface of the heating box (302) is fixedly connected with a fan (301), the inside of the heating box (302) is fixedly connected with heating wires (303), the inside of the heating box (302) is sequentially fixedly connected with a filter screen (306) and an activated carbon plate (305) from bottom to top, the left side of the upper surface of the heating box (302) is fixedly communicated with a gas conveying pipe (304), the other end of the gas conveying pipe (304) is fixedly communicated with the right end of the three-way pipe (204) through a valve.

7. An oil wellhead assembly that facilitates cleaning according to claim 6, wherein: The number of the heating wires (303) is five and they are alternately distributed on the left and right inner walls of the heating box (302).

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