Natural gas pipeline cleaning ball receiving and sending cylinder system

Abstract

The utility model relates to the technical field of natural gas pipeline cleaning, in particular to a natural gas pipeline cleaning ball receiving and sending cylinder system. A worm and gear reducer is arranged at the output end of a driving motor and connected with a double-thread lead screw, and a thread connecting piece drives a locking ring assembly to be unfolded; after unfolding, double insurance is formed through interlocking of the worm gear reducer, the double-thread lead screw and the thread connecting piece, and the possibility of rotation is prevented; meanwhile, on the basis that responsibilities of the ball receiving and sending barrels are different, the ball sending barrel system and the ball receiving barrel system are arranged to be of different structures; by means of the central processing module, the displayer, the control button and electric interlocking among the components, automatic control over the natural gas pipeline cleaning ball receiving and sending cylinder system is achieved, compared with a traditional full-manual mode, the system is more convenient and faster, the state of all the components monitored through the displayer is compared with the actual state of all the components, and the safety of the system is improved. And the health state of the whole system is further ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to natural gas pipeline cleaning technical field, concretely relates to a natural gas pipeline cleaning receiving and sending ball cylinder system. BACKGROUND

[0002] The natural gas pipeline cleaning receiving and sending ball cylinder system belongs to pipeline accessories and is widely used in various medium conveying pipelines.

[0003] In the natural gas pipeline, it is mainly used for removing the corrosive substances such as water, light oil, methane hydrate, oxidized iron, carbide dust, carbon disulfide and hydrogen sulfide in the pipeline, reducing the corrosion damage of corrosive substances to the inner wall of the pipeline, redefining the pipeline direction, detecting the pipeline deformation, checking the valve integrity along the pipeline and reducing the working back pressure.

[0004] In the natural gas pipeline cleaning receiving and sending ball cylinder system, the place where accidents are prone to occur is basically the position of the lock ring assembly. UTILITY MODEL CONTENT

[0005] Therefore, the utility model wants to solve the technical problem in the prior art, so as to provide a natural gas pipeline cleaning receiving and sending ball cylinder system.

[0006] A natural gas pipeline cleaning receiving and sending ball cylinder system, comprising a ball receiving cylinder system and a ball sending cylinder system, the ball receiving cylinder system and the ball sending cylinder system are correspondingly arranged at two ends of the natural gas pipeline, and the ball receiving cylinder system and the ball sending cylinder system are correspondingly provided with a second quick-opening blind plate and a first quick-opening blind plate at the end thereof.

[0007] The first quick-opening blind plate comprises a driving motor, a worm gear reducer, a lock ring assembly, a blind plate cover, a hinge plate, a rotating shaft assembly, a fixed bearing, a fixed plate, a rotating connecting piece, a threaded connecting piece, a double-threaded screw rod and a blind plate seat.

[0008] The output shaft of the driving motor is connected with the input end of the worm gear reducer, the output end of the worm gear reducer is connected with one end of the double-threaded screw rod, the fixed plate is fixedly connected on one side of the shell of the worm gear reducer, a pair of fixed bearings are arranged on the fixed plate, the inner rings of the two fixed bearings are respectively connected with the two shaft ends of the double-threaded screw rod, a pair of threaded connecting pieces are threadedly connected on the double-threaded screw rod, each threaded connecting piece is rotationally connected with one end of a rotating connecting piece, the other end of the rotating connecting piece is fixedly connected with the lock ring assembly, the inner ring of the lock ring assembly is clamped with the blind plate cover and the blind plate seat, the blind plate cover is adaptively shaped with the blind plate seat, the blind plate cover is fixedly connected with one end of the hinge plate, the other end of the hinge plate is fixedly connected with the rotating shaft assembly, and the rotating shaft assembly is connected with the output end of the rotating motor.

[0009] The lock ring assembly comprises three arc-shaped lock rings, a lock ring connecting piece and a lock ring connecting shaft; two rotating connecting pieces are connected with one arc-shaped lock ring, and the three arc-shaped lock rings are hingedly connected through the lock ring connecting piece and the lock ring connecting shaft.

[0010] The second quick-opening blind plate has the same structure as the first quick-opening blind plate.

[0011] Further, the ball feeding cylinder system comprises a first main pipeline, a first valve, a first cylinder body, a first emptying valve, a first electronic pressure transmitter, a first mechanical pressure gauge, a first quick-opening blind plate, a second valve, a first branch pipeline, a third valve, a second connecting pipeline, a first connecting pipeline and a fourth mechanical pressure gauge.

[0012] One end of the first cylinder body is connected with the first main pipeline, the other end of the first cylinder body is connected with one end of the blind plate seat of the first quick-opening blind plate, the first emptying valve, the first electronic pressure transmitter and the first mechanical pressure gauge are arranged on the first cylinder body, the first main pipeline is provided with the first valve on the side close to the first cylinder body, the fourth mechanical pressure gauge is arranged on the first main pipeline and away from the side of the first cylinder body, the first cylinder body is connected with one end of the first branch pipeline through the first connecting pipeline, the first connecting pipeline is provided with the second valve, the first main pipeline is connected with the first branch pipeline through the second connecting pipeline, and the second connecting pipeline is provided with the third valve; and the pig is arranged in the first cylinder body.

[0013] Further, the ball collecting cylinder system comprises a second main pipeline, a fourth valve, a second emptying valve, a second electronic pressure transmitter, a second mechanical pressure gauge, a second quick-opening blind plate, a third mechanical pressure gauge, a fifth valve, a third connecting pipeline, a third emptying valve, a third electronic pressure transmitter, a balance pipeline, a second branch pipeline, a sixth valve, a fourth connecting pipeline and a second cylinder body.

[0014] One end of the second cylinder is connected with one end of the second main pipeline, the other end of the second cylinder is connected with one end of the blind plate seat of the second quick opening blind plate, a fourth valve, a second emptying valve, a second electronic pressure transmitter and a second mechanical pressure gauge are sequentially arranged on the side of the second main pipeline close to the second cylinder, the two ends of the balance pipeline are connected with the second main pipeline and the second cylinder respectively, a third mechanical pressure gauge, a third emptying valve and a third electronic pressure transmitter are arranged on the second cylinder, the second cylinder is connected with one end of the second branch pipeline through a third connecting pipeline, and a fifth valve is arranged on the third connecting pipeline, the second main pipeline is connected with the second branch pipeline through a fourth connecting pipeline, and a sixth valve is arranged on the fourth connecting pipeline.

[0015] Further, the rotating shaft assembly comprises a rotating shaft, a rotating shaft cover, a rotating shaft connecting plate and a blind plate seat connecting plate.

[0016] Both ends of the rotating shaft are connected with the rotating shaft cover, one side of the rotating shaft cover is connected with the bottom surface of the plane thrust ball bearing, one end of the rotating shaft connecting plate is fixedly connected with the other side of the rotating shaft cover, the other end of the rotating shaft connecting plate is fixedly connected with the blind plate seat connecting plate, and the blind plate seat connecting plate is fixedly connected with the blind plate seat.

[0017] Further, a plurality of threaded holes are arranged on the rotating shaft cover, and a plurality of adjusting bolts are threadedly connected in the threaded holes.

[0018] Further, positioning holes are arranged on the two arc-shaped locking rings corresponding to the two rotating connectors; a positioning column is arranged on the other arc-shaped locking ring, and the positioning column is connected with the U-shaped positioning piece arranged on the bottom of the blind plate seat.

[0019] Further, a safety valve is arranged on the blind plate cover.

[0020] Further, the natural gas pipeline cleaning receiving and launching cylinder system further comprises a remote control terminal, the remote control terminal comprises a central processing module, a display and control buttons, the display and the control buttons are connected with the central processing module, the central processing module is further signal connected with a driving motor, a rotating motor, a first emptying valve, a second emptying valve and a third emptying valve, and the central processing module is further signal connected with a first mechanical pressure gauge, a second mechanical pressure gauge, a third mechanical pressure gauge, a fourth mechanical pressure gauge, a first electronic pressure transmitter, a second electronic pressure transmitter and a third electronic pressure transmitter.

[0021] In the launching cylinder system, the first electronic pressure transmitter is electrically interlocked with the driving motor of the launching cylinder system, and the driving motor of the launching cylinder system is electrically interlocked with the rotating motor of the launching cylinder system.

[0022] In the receiving cylinder system, the second electronic pressure transmitter and the third electronic pressure transmitter are electrically interlocked with the driving motor of the receiving cylinder system, and the driving motor of the receiving cylinder system is electrically interlocked with the rotating motor of the receiving cylinder system.

[0023] Further, the remote control terminal further comprises a loudspeaker connected with the central processing module.

[0024] The technical scheme of the utility model discloses a worm gear reducer is arranged at the output end of the driving motor, the worm gear reducer is connected with the double thread screw rod, the double thread screw rod is connected with the threaded connector, the lock ring assembly is driven to expand, the interlocking between the worm gear reducer and the double thread screw rod and the threaded connector after expansion forms double insurance, and the possibility of rotation is prevented.

[0025] The utility model discloses a technical scheme based on the responsibility difference of the ball receiving and sending cylinder, so the ball sending cylinder system and the ball receiving cylinder system are set to different structures, especially the second emptying valve is set on the second main pipeline of the ball receiving cylinder system and the third emptying valve is set on the second cylinder body to empty together, the pressure of the second main pipeline and the second cylinder body is kept consistent through the balance pipeline, then the values of the second electronic pressure transmitter and the second mechanical pressure gauge on the second main pipeline are compared with the values of the third electronic pressure transmitter and the third mechanical pressure gauge set on the second cylinder body to ensure that the values are consistent and all are 0, preventing the pressure difference of two positions and the occurrence of dangerous accidents.

[0026] In addition, the application sets the central processing module, the display and the control button, and in the ball sending cylinder system, the first electronic pressure transmitter is electrically interlocked with the driving motor of the ball sending cylinder system, the driving motor of the ball sending cylinder system is electrically interlocked with the rotating motor of the ball sending cylinder system, in the ball receiving cylinder system, the second electronic pressure transmitter and the third electronic pressure transmitter are electrically interlocked with the driving motor of the ball receiving cylinder system, the driving motor of the ball receiving cylinder system is electrically interlocked with the rotating motor of the ball receiving cylinder system, through the electrical interlocking and electrical interlocking between the central processing module, the display, the control button and the components, the automation control of the natural gas pipeline cleaning ball receiving and sending cylinder system can be realized, which is more convenient and faster than the traditional full manual mode, and the display monitors the state of each component and compares it with the actual state of each component, further ensuring the health state of the whole system. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating creative labor.

[0028] Figure 1 It is the structural schematic diagram of the ball sending cylinder system;

[0029] Figure 2 Structure diagram of the first quick-opening blind plate;

[0030] Figure 3 Structure diagram of the first quick-opening blind plate;

[0031] Figure 4 Structure diagram of the blind plate seat and the lock ring assembly;

[0032] Figure 5 Structure diagram of the rotating shaft assembly;

[0033] Figure 6 Structure diagram of the pig in the first cylinder.

[0034] Explanation of reference signs:

[0035] 1-first main pipeline; 2-first valve; 3-first cylinder; 4-first emptying valve; 5-first electronic pressure transmitter; 6-first mechanical pressure gauge; 7-first quick-opening blind plate; 8-second valve; 9-first branch pipeline; 10-third valve; 11-second connecting pipeline; 12-second main pipeline; 13-fourth valve; 14-second emptying valve; 15-second electronic pressure transmitter; 16-second mechanical pressure gauge; 17-second quick-opening blind plate; 18-third mechanical pressure gauge; 19-fifth valve; 20-third connecting pipeline; 21-third emptying valve; 22-third electronic pressure transmitter; 23-balancing pipeline; 24-second branch pipeline; 25-sixth valve; 26-fourth connecting pipeline; 27-driving motor; 28-worm and gear reducer; 29-lock ring assembly; 30-lock ring connecting piece; 31-lock ring connecting shaft; 32-blind plate cover; 33-safety valve; 34-hinge plate; 35-rotating shaft assembly; 36-fixed bearing; 37-fixed plate; 38-rotating connecting piece; 39-threaded connecting piece; 40-double-threaded screw rod; 41-first connecting pipeline; 42-second cylinder; 43-pig; 44-blind plate seat; 45-positioning hole; 46-U-shaped positioning piece; 47-positioning column; 48-rotating shaft; 49-rotating shaft cover; 50-adjusting bolt; 51-rotating shaft connecting plate; 52-blind plate seat connecting plate; 53-fourth mechanical pressure gauge. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0037] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or positional relationship is based on the orientation or positional relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the utility model, it is necessary to explain, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, and can be detachably connected, or integrally connected, it can be mechanically connected, or it can be signal connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] In addition, the technical features involved in different embodiments of the utility model described below can be combined with each other as long as there is no conflict.

[0040] Please refer to Figures 1 to 6 A natural gas pipeline cleaning receiving and launching cylinder system, including receiving cylinder system and launching cylinder system, receiving cylinder system and launching cylinder system are correspondingly arranged at both ends of the natural gas pipeline, the end of receiving cylinder system and launching cylinder system is correspondingly provided with second quick opening blind plate 17 and first quick opening blind plate 7;

[0041] The first quick opening blind plate 7 includes a driving motor 27, a worm gear reducer 28, a lock ring assembly 29, a blind plate cover 32, a hinge plate 34, a rotating shaft assembly 35, a fixed bearing 36, a fixed plate 37, a rotating connecting piece 38, a threaded connecting piece 39, a double-threaded screw rod 40 and a blind plate seat 44;

[0042] The output shaft of the driving motor 27 is connected with the input end of the worm gear reducer 28, the output end of the worm gear reducer 28 is connected with one end of the double-threaded screw rod 40, the fixed plate 37 is fixedly connected on one side of the shell of the worm gear reducer 28, a pair of fixed bearings 36 are arranged on the fixed plate 37, the inner rings of the two fixed bearings 36 are respectively connected with the two shaft ends of the double-threaded screw rod 40, a pair of threaded connecting pieces 39 are threadedly connected on the double-threaded screw rod 40, each threaded connecting piece 39 is rotationally connected with one end of a rotating connecting piece 38, the other end of the rotating connecting piece 38 is fixedly connected with the lock ring assembly 29, the inner ring of the lock ring assembly 29 is clamped with the blind cover 32 and the blind seat 44, the blind cover 32 is shape-fitted with the blind seat 44, the blind cover 32 is fixedly connected with one end of the hinge plate 34, the other end of the hinge plate 34 is fixedly connected with the rotating shaft assembly 35, the rotating shaft assembly 35 is connected with the output end of the rotating motor;

[0043] The lock ring assembly 29 comprises three arc-shaped lock rings, a lock ring connecting piece 30 and a lock ring connecting shaft 31; two rotating connecting pieces 38 are correspondingly connected with one arc-shaped lock ring, and the three arc-shaped lock rings are hingedly connected through the lock ring connecting piece 30 and the lock ring connecting shaft 31;

[0044] The second quick-opening blind plate 17 has the same structure as the first quick-opening blind plate 7.

[0045] When the first quick-opening blind plate 7 or the second quick-opening blind plate 17 needs to be opened, the driving motor 27 provides power, which is sequentially provided to the worm gear reducer 28 and the double-threaded screw rod 40, a pair of threaded connecting pieces 39 move outward, the rotating connecting pieces 38 rotate around the threaded connecting pieces 39 and drive the arc-shaped lock rings connected therewith to move outward, and the bottoms of the two arc-shaped lock rings rotate around the lock ring connecting shaft 31 through the lock ring connecting piece 30, so that the three arc-shaped lock rings gradually separate from the edges of the blind cover 32 and the blind seat 44, and the unlocking is realized, the rotating motor provides power for the turning of the blind cover 32, and the separation of the blind cover 32 and the blind seat 44 is realized.

[0046] The ball feeding cylinder system comprises a first main pipeline 1, a first valve 2, a first cylinder body 3, a first emptying valve 4, a first electronic pressure transmitter 5, a first mechanical pressure gauge 6, a first quick-opening blind plate 7, a second valve 8, a first branch pipeline 9, a third valve 10, a second connecting pipeline 11, a first connecting pipeline 41 and a fourth mechanical pressure gauge 53;

[0047] One end of the first cylinder 3 is connected with the first main pipeline 1, the other end of the first cylinder 3 is connected with one end of the blind plate seat 44 of the first quick opening blind plate 7, the first emptying valve 4, the first electronic pressure transmitter 5 and the first mechanical pressure gauge 6 are arranged on the first cylinder 3, the first valve 2 is arranged on the side of the first main pipeline 1 close to the first cylinder 3, the fourth mechanical pressure gauge 53 is arranged on the side of the first main pipeline 1 away from the first cylinder 3, the first cylinder 3 is connected with one end of the first branch pipeline 9 through the first connecting pipeline 41, the second valve 8 is arranged on the first connecting pipeline 41, the first main pipeline 1 is connected with the first branch pipeline 9 through the second connecting pipeline 11, and the third valve 10 is arranged on the second connecting pipeline 11; the pig 43 is arranged in the first cylinder 3.

[0048] The ball collecting cylinder system comprises a second main pipeline 12, a fourth valve 13, a second emptying valve 14, a second electronic pressure transmitter 15, a second mechanical pressure gauge 16, a second quick opening blind plate 17, a third mechanical pressure gauge 18, a fifth valve 19, a third connecting pipeline 20, a third emptying valve 21, a third electronic pressure transmitter 22, a balance pipeline 23, a second branch pipeline 24, a sixth valve 25, a fourth connecting pipeline 26 and a second cylinder 42.

[0049] One end of the second cylinder 42 is connected with one end of the second main pipeline 12, the other end of the second cylinder 42 is connected with one end of the blind plate seat 44 of the second quick opening blind plate 17, the fourth valve 13, the second emptying valve 14, the second electronic pressure transmitter 15 and the second mechanical pressure gauge 16 are sequentially arranged on the side of the second main pipeline 12 close to the second cylinder 42, the two ends of the balance pipeline 23 are connected with the second main pipeline 12 and the second cylinder 42 respectively, the third mechanical pressure gauge 18, the third emptying valve 21 and the third electronic pressure transmitter 22 are arranged on the second cylinder 42, the second cylinder 42 is connected with one end of the second branch pipeline 24 through the third connecting pipeline 20, the fifth valve 19 is arranged on the third connecting pipeline 20, the second main pipeline 12 is connected with the second branch pipeline 24 through the fourth connecting pipeline 26, and the sixth valve 25 is arranged on the fourth connecting pipeline 26.

[0050] The ball launching cylinder system and the ball receiving cylinder system of the conventional receiving and launching cylinder system have the same structure, that is, the symmetrical structure design is adopted on the left and right sides, but due to the difference in the responsibilities of the receiving and launching cylinder, the same structure design is not the optimal solution, based on this, the ball launching cylinder system and the ball receiving cylinder system are arranged into different structures; accidents often occur on one side of the ball receiving cylinder system, therefore, the second emptying valve 14 is arranged on the second main pipeline 12 of the ball receiving cylinder system and the third emptying valve 21 is arranged on the second cylinder body 42 to empty together, the balance pipeline 23 is arranged to make the pressure of the second main pipeline 12 and the second cylinder body 42 consistent, then the values of the second electronic pressure transmitter 15 and the second mechanical pressure gauge 16 on the second main pipeline 12 are compared with the values of the third electronic pressure transmitter 22 and the third mechanical pressure gauge 18 arranged on the second cylinder body 42 to ensure that the values are consistent and are both 0, preventing the pressure of the two positions from being different and further preventing dangerous accidents from occurring.

[0051] The working process of the ball launching cylinder system:

[0052] The preparation work before the blind plate cover 32 of the first quick-opening blind plate 7 is opened: first, check the actual state of the first valve 2, the first emptying valve 4, the first electronic pressure transmitter 5, the first mechanical pressure gauge 6, the second valve 8, the third valve 10, the second connecting pipeline 11 and the fourth mechanical pressure gauge 53; when the gas is normally transported, the first valve 2, the second valve 8 and the first emptying valve 4 are in the normally closed state, the third valve 10 is in the normally open state, at this time, the values of the first electronic pressure transmitter 5 and the first mechanical pressure gauge 6 are 0, and the fourth mechanical pressure gauge 53 is the pressure value when the gas is normally transported; if the values of the first electronic pressure transmitter 5, the first mechanical pressure gauge 6 and the fourth mechanical pressure gauge 53 are close or equal, the first valve 2 or the second valve 8 is not closed tightly, the operator needs to report, and after the maintenance confirms that it meets the dredging requirements, the next operation can be performed;

[0053] The preparation work before the blind plate cover 32 of the first quick-opening blind plate 7 is opened: first, check the actual state of the first valve 2, the first emptying valve 4, the first electronic pressure transmitter 5, the first mechanical pressure gauge 6, the second valve 8, the third valve 10, the second connecting pipeline 11 and the fourth mechanical pressure gauge 53; when the gas is normally transported, the first valve 2, the second valve 8 and the first emptying valve 4 are in the normally closed state, the third valve 10 is in the normally open state, at this time, the values of the first electronic pressure transmitter 5 and the first mechanical pressure gauge 6 are 0, and the fourth mechanical pressure gauge 53 is the pressure value when the gas is normally transported; if the values of the first electronic pressure transmitter 5, the first mechanical pressure gauge 6 and the fourth mechanical pressure gauge 53 are close or equal, the first valve 2 or the second valve 8 is not closed tightly, the operator needs to report, and after the maintenance confirms that it meets the dredging requirements, the next operation can be performed;

[0054] The preparation work before the pipe cleaning operation: the pipe cleaner 43 is loaded, the blind plate cover 32 is closed, then the drive motor 27 is started to close the lock ring assembly 29, and the first emptying valve 4 is closed;

[0055] The pipe cleaning work: the second valve 8 is opened, the values of the first electronic pressure transmitter 5, the first mechanical pressure gauge 6 and the fourth mechanical pressure gauge 53 are observed, when the values are equal, the first valve 2 is opened, the third valve 10 is closed, the pipe cleaner 43 is launched under the action of the pressure to clean the pipeline, and the operator observes the launching state of the pipe cleaner 43 through the handheld detection instrument;

[0056] The follow-up work after pigging: open the third valve 10, close the first valve 2 and the second valve 8, open the first evacuation valve 4, when the values of the first electronic pressure transmitter 5 and the first mechanical pressure gauge 6 are ≤0, close the first evacuation valve 4, and the ball launching cylinder system returns to the initial state.

[0057] The working process of the ball receiving cylinder system:

[0058] The preparation work before opening the blind cover 32 of the second quick-opening blind plate 17: check the states of the fourth valve 13, the fifth valve 19 and the sixth valve 25, in the normal state, the fourth valve 13 and the fifth valve 19 are opened, and the sixth valve 25 is closed, the operator observes the pig 43 through the handheld detection instrument until the pig 43 enters the second cylinder body 42, then opens the sixth valve 25, and subsequently closes the fifth valve 19 and the fourth valve 13;

[0059] The preparation work before taking the pig 43: open the second evacuation valve 14 and the third evacuation valve 21, when the values of the second electronic pressure transmitter 15 and the third electronic pressure transmitter 22 are both ≤0, open the locking ring assembly 29 to release the blind cover 32, open the blind cover 32, and the operator takes out the pig 43 and the cleaning treatment;

[0060] The work after pipeline cleaning: check the states of the fourth valve 13, the second evacuation valve 14, the third evacuation valve 21, the fifth valve 19 and the sixth valve 25, at this time, the fourth valve 13 and the fifth valve 19 are closed, the second evacuation valve 14, the third evacuation valve 21 and the sixth valve 25 are opened, the blind cover 32 is closed, then the locking ring assembly 29 is closed to lock the blind cover 32, then the second evacuation valve 14 and the third evacuation valve 21 are closed, the operator checks the states of the fourth valve 13, the second evacuation valve 14, the third evacuation valve 21, the fifth valve 19 and the sixth valve 25, at this time, only the sixth valve 25 is opened, and the rest of the valves are closed, the operator checks the values of the second electronic pressure transmitter 15, the second mechanical pressure gauge 16, the third mechanical pressure gauge 18 and the third electronic pressure transmitter 22, at this time, the values should all be 0.

[0061] The rotating shaft assembly 35 comprises a rotating shaft 48, a rotating shaft cover 49, a rotating shaft connecting plate 51 and a blind plate seat connecting plate 52.

[0062] Both ends of the rotating shaft 48 are connected with the rotating shaft cover 49, one side of the rotating shaft cover 49 is connected with the bottom surface of the plane thrust ball bearing, one end of the rotating shaft connecting plate 51 is fixedly connected with the other side of the rotating shaft cover 49, the other end of the rotating shaft connecting plate 51 is fixedly connected with the blind plate seat connecting plate 52, and the blind plate seat connecting plate 52 is fixedly connected with the blind plate seat 44.

[0063] A plurality of threaded holes are formed in the rotating shaft cover 49, and a plurality of adjusting bolts 50 are threadedly connected in the threaded holes.

[0064] Two positioning holes 45 are arranged on the two arc-shaped locking rings corresponding to the two rotating connectors 38; a positioning column 47 is arranged on the other arc-shaped locking ring, and the positioning column 47 is connected with a U-shaped positioning piece 46 arranged at the bottom of the blind plate base 44; the blind plate cover 32 is provided with a safety valve 33.

[0065] Please continue to see Figures 1 to 6 In the embodiment, the natural gas pipeline cleaning and receiving and launching cylinder system further comprises a remote control terminal, the remote control terminal comprises a central processing module, a display and control buttons, the display and the control buttons are connected with the central processing module, the central processing module is further connected with the driving motor 27, the rotating motor, the first emptying valve 4, the second emptying valve 14 and the third emptying valve 21, the central processing module is further connected with the first mechanical pressure gauge 6, the second mechanical pressure gauge 16, the third mechanical pressure gauge 18, the fourth mechanical pressure gauge 53, the first electronic pressure transmitter 5, the second electronic pressure transmitter 15 and the third electronic pressure transmitter 22, and the remote control terminal further comprises a loudspeaker connected with the central processing module.

[0066] In the launching cylinder system, the first electronic pressure transmitter 5 is electrically connected with the driving motor 27 of the launching cylinder system, and the driving motor 27 of the launching cylinder system is electrically connected with the rotating motor of the launching cylinder system.

[0067] In the receiving cylinder system, the second electronic pressure transmitter 15 and the third electronic pressure transmitter 22 are electrically connected with the driving motor 27 of the receiving cylinder system, and the driving motor 27 of the receiving cylinder system is electrically connected with the rotating motor of the receiving cylinder system.

[0068] Through the central processing module, the display, the control buttons and the electrical connection and electrical interlocking between the components, the automatic control of the natural gas pipeline cleaning and receiving and launching cylinder system can be realized.

[0069] The automatic control process of the launching cylinder system is as follows:

[0070] The first quick-opening blind plate 7 blind cover 32 open before the preparation work: rotate the automatic control button, the loudspeaker prompts the actual state of the first valve 2, the first emptying valve 4, the first electronic pressure transmitter 5, the first mechanical pressure gauge 6, the second valve 8, the third valve 10, the second connecting pipeline 11 and the fourth mechanical pressure gauge 53, and simultaneously displays the state on the display, green for closed, red for open; When normal gas transmission, the first valve 2, the second valve 8 and the first emptying valve 4 are in a normally closed state, and the third valve 10 is in a normally open state, at this time, the values of the first electronic pressure transmitter 5 and the first mechanical pressure gauge 6 are 0, and the fourth mechanical pressure gauge 53 is the pressure value when normal gas transmission; If the values of the first electronic pressure transmitter 5, the first mechanical pressure gauge 6 and the fourth mechanical pressure gauge 53 are close or equal, the first valve 2 or the second valve 8 is not closed tightly, the operator needs to report, and after maintenance confirmation meets the dredging requirements, the next step operation can be carried out;

[0071] The first quick-opening blind plate 7 blind cover 32 is prepared to open: start the opening button of the first emptying valve 4, and simultaneously the loudspeaker broadcasts that the first emptying valve 4 is opening, until the first emptying valve 4 is opened, at this time, the values of the first electronic pressure transmitter 5 and the first mechanical pressure gauge 6 are ≤0, since the first electronic pressure transmitter 5 is interlocked with the driving motor 27, when the loudspeaker broadcasts that the value of the first electronic pressure transmitter 5 is 0, the driving motor 27 is powered on, the opening button of the lock ring assembly 29 is pressed to open the lock ring assembly 29 through the driving motor 27, since the driving motor 27 and the rotating motor are electrically interlocked, at this time, the rotating motor is in a power-off state, when the lock ring assembly 29 is opened to a predetermined position, the loudspeaker broadcasts that the blind cover 32 can be opened, the opening button of the blind cover 32 is pressed, at this time, the driving motor 27 is powered off and the rotating motor is powered on, under the action of the rotating motor, the blind cover 32 is opened in multiple gears, 1st gear opens 45 degrees and stops for 5 seconds, 2nd gear door plate opening degree ≥180 degrees, then the safety operation button is pressed, and the rotating motor is also powered off;

[0072] The preparation work before the pipe cleaning operation: load the pipe cleaner 43, cancel the safety operation button, the rotating motor is powered on, the closing button of the blind cover 32 is pressed, the rotating motor works to drive the blind cover 32 to move until it is completely closed, the loudspeaker broadcasts that the lock ring assembly 29 can be closed, the closing button of the lock ring assembly 29 is pressed, at this time, the rotating motor is powered off and the driving motor 27 is powered on, the driving motor 27 drives the lock ring assembly 29 to move until the lock ring assembly 29 is completely closed, the loudspeaker broadcasts that the first emptying valve 4 can be closed, the closing button of the first emptying valve 4 is pressed, at this time, the driving motor 27 is also powered off;

[0073] Pipeline cleaning operation: Manually open the second valve 8 and observe the values ​​of the first electronic pressure transmitter 5, the first mechanical pressure gauge 6 and the fourth mechanical pressure gauge 53. When the values ​​are equal, open the first valve 2 and close the third valve 10. The pipeline cleaning pig 43 will be launched under pressure to clean the pipeline. The operator can observe the launch status of the pipeline cleaning pig 43 through a handheld detection instrument.

[0074] Post-pipe cleaning work: Open the third valve 10, close the first valve 2 and the second valve 8, press the open button of the first vent valve 4, pause for 10 seconds at 30 degrees for level 1, pause for 10 seconds at 60 degrees for level 2, and fully open at level 3. The speaker will announce that the first vent valve 4 is fully open. When the values ​​of the first electronic pressure transmitter 5 and the first mechanical pressure gauge 6 are ≤0, the speaker will announce that the first vent valve 4 is closed. Press the close button of the first vent valve 4, and the pig launching tube system will return to its initial state.

[0075] The automated control process of the ball collecting drum system is as follows:

[0076] Preparations before opening the blind flange cover 32 of the second quick-opening blind flange 17: Rotate the automatic button to check the status of the fourth valve 13, the fifth valve 19, and the sixth valve 25 and display it on the monitor. Under normal conditions, the fourth valve 13 and the fifth valve 19 are open, and the sixth valve 25 is closed. After no abnormality is found, the speaker will announce the check of the position of the pig 43. The operator will observe the pig 43 with a handheld detection instrument until the pig 43 enters the second cylinder 42. The operator will open the sixth valve 25, and the speaker will announce that the sixth valve 25 is open. Then, the fifth valve 19 and the fourth valve 13 will be closed in sequence, and the speaker will announce that the fifth valve 19 and the fourth valve 13 are closed.

[0077] Preparations before retrieving the pipeline cleaning tool 43: Press the open buttons for the second vent valve 14 and the third vent valve 21. The speaker will announce that the second vent valve 14 and the third vent valve 21 are opening. When the pointer opening degree reaches 30 degrees, pause for 10 seconds; when the pointer opening degree reaches 60 degrees, pause for 10 seconds; when the pointer opening degree reaches 90 degrees, the speaker will announce that the second vent valve 14 and the third vent valve 21 have finished opening. When the values ​​of the second electronic pressure transmitter 15 and the third electronic pressure transmitter 22 are both ≤0, the speaker will announce... Press the open button of the locking ring assembly 29. After the locking ring assembly 29 opens to the designated position, the speaker will announce that the locking ring assembly 29 has been opened. Press the open button of the blind flange cover 32 to release the blind flange cover 32. When the blind flange cover 32 is opened to 45 degrees, it will pause for 5 seconds. After 5 seconds, the rotating motor will continue to run. When the blind flange cover 32 is opened to ≥180 degrees, the rotation will stop. The speaker will announce that the blind flange cover 32 has been opened. The operator can then remove the pig 43 and perform cleaning. After that, press the safety operation button.

[0078] After pipeline cleaning work: release the safety operation button, check the state of the fourth valve 13, the second evacuation valve 14, the third evacuation valve 21, the fifth valve 19 and the sixth valve 25, at this time the fourth valve 13 and the fifth valve 19 are closed, the second evacuation valve 14, the third evacuation valve 21 and the sixth valve 25 are opened, press the closing button of the blind cover 32, the loudspeaker broadcasts that the blind cover 32 is being closed, after the blind cover 32 is closed, the loudspeaker broadcasts that the locking ring assembly 29 can be closed, press the closing button of the locking ring assembly 29 to close the locking ring assembly 29 to lock the blind cover 32, the loudspeaker broadcasts that the locking ring assembly 29 is closed and prompts to close the second evacuation valve 14 and the third evacuation valve 21, then press the closing button of the second evacuation valve 14 and the third evacuation valve 21, the loudspeaker broadcasts that the second evacuation valve 14 and the third evacuation valve 21 have been closed, the operator checks the state of the fourth valve 13, the second evacuation valve 14, the third evacuation valve 21, the fifth valve 19 and the sixth valve 25, at this time only the sixth valve 25 is opened, the rest of the valves are closed, the operator checks the values of the second electronic pressure transmitter 15, the second mechanical pressure gauge 16, the third mechanical pressure gauge 18 and the third electronic pressure transmitter 22, at this time the values should all be 0, then check whether the state of each part on the display is consistent with the actual state of each part, and ensure that there is no error.

[0079] Through the central processing module, the display, the control button and the electrical interlocking and electrical interlocking between the parts, the automatic control of the natural gas pipeline cleaning receiving and sending barrel system is realized, which is more convenient and faster than the traditional all-manual mode, and through the display, the state of each part is compared with the actual state of each part, further ensuring the health state of the whole system.

[0080] Obviously, the above embodiments are only examples for clearly illustrating, but not limiting the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the present utility model.

Claims

1. A natural gas pipeline pigging pick-up and launch-receiver system, characterized by, The application relates to a natural gas pipeline quick-opening blind plate system. The first quick-opening blind plate (7) comprises a driving motor (27), a worm gear reducer (28), a lock ring assembly (29), a blind plate cover (32), a hinge plate (34), a rotating shaft assembly (35), a fixed bearing (36), a fixed plate (37), a rotating connecting piece (38), a threaded connecting piece (39), a double-threaded screw rod (40) and a blind plate base (44). The output shaft of the driving motor (27) is connected with the input end of the worm gear reducer (28), the output end of the worm gear reducer (28) is connected with one end of the double-threaded screw rod (40), the fixed plate (37) is fixedly connected on one side of the shell of the worm gear reducer (28), a pair of fixed bearings (36) are arranged on the fixed plate (37), the inner rings of the two fixed bearings (36) are respectively connected with the two shaft ends of the double-threaded screw rod (40), a pair of threaded connecting pieces (39) are threadedly connected on the double-threaded screw rod (40), one end of each threaded connecting piece (39) is rotationally connected with one end of a rotating connecting piece (38), the other end of the rotating connecting piece (38) is fixedly connected with the lock ring assembly (29), the inner ring of the lock ring assembly (29) is clamped with the blind plate cover (32) and the blind plate base (44), the blind plate cover (32) is matched with the blind plate base (44) in shape, one end of the blind plate cover (32) is fixedly connected with the hinge plate (34), the other end of the hinge plate (34) is fixedly connected with the rotating shaft assembly (35), and the rotating shaft assembly (35) is connected with the output end of the rotating motor. The lock ring assembly (29) comprises three arc-shaped lock rings, a lock ring connecting piece (30) and a lock ring connecting shaft (31); two rotating connecting pieces (38) are connected with one arc-shaped lock ring correspondingly, and the three arc-shaped lock rings are hingedly connected through the lock ring connecting piece (30) and the lock ring connecting shaft (31). The second quick-opening blind plate (17) is the same in structure as the first quick-opening blind plate (7).

2. The natural gas pipeline pig launcher-receiver system of claim 1, wherein, The ball launching cylinder system comprises a first main pipeline (1), a first valve (2), a first cylinder body (3), a first emptying valve (4), a first electronic pressure transmitter (5), a first mechanical pressure gauge (6), a first quick-opening blind plate (7), a second valve (8), a first branch pipeline (9), a third valve (10), a second connecting pipeline (11), a first connecting pipeline (41) and a fourth mechanical pressure gauge (53). One end of the first cylinder (3) is connected with the first main pipeline (1), the other end of the first cylinder (3) is connected with one end of the blind plate base (44) of the first quick opening blind plate (7), the first emptying valve (4), the first electronic pressure transmitter (5) and the first mechanical pressure gauge (6) are arranged on the first cylinder (3), the first valve (2) is arranged on the side of the first main pipeline (1) close to the first cylinder (3), the fourth mechanical pressure gauge (53) is arranged on the side of the first main pipeline (1) away from the first cylinder (3), the first cylinder (3) is connected with one end of the first branch pipeline (9) through the first connecting pipeline (41), the second valve (8) is arranged on the first connecting pipeline (41), the first main pipeline (1) is connected with the first branch pipeline (9) through the second connecting pipeline (11), the third valve (10) is arranged on the second connecting pipeline (11); The pig (43) is arranged in the first cylinder (3).

3. The natural gas pipeline pig launcher-receiver system of claim 2, wherein, The ball collecting cylinder system comprises a second main pipeline (12), a fourth valve (13), a second emptying valve (14), a second electronic pressure transmitter (15), a second mechanical pressure gauge (16), a second quick opening blind plate (17), a third mechanical pressure gauge (18), a fifth valve (19), a third connecting pipeline (20), a third emptying valve (21), a third electronic pressure transmitter (22), a balance pipeline (23), a second branch pipeline (24), a sixth valve (25), a fourth connecting pipeline (26) and a second cylinder (42); One end of the second cylinder (42) is connected with one end of the second main pipeline (12), the other end of the second cylinder (42) is connected with one end of the blind plate base (44) of the second quick opening blind plate (17), the fourth valve (13), the second emptying valve (14), the second electronic pressure transmitter (15) and the second mechanical pressure gauge (16) are sequentially arranged on the side of the second main pipeline (12) close to the second cylinder (42), the two ends of the balance pipeline (23) are connected with the second main pipeline (12) and the second cylinder (42) respectively, the third mechanical pressure gauge (18), the third emptying valve (21) and the third electronic pressure transmitter (22) are arranged on the second cylinder (42), the second cylinder (42) is connected with one end of the second branch pipeline (24) through the third connecting pipeline (20), the fifth valve (19) is arranged on the third connecting pipeline (20), the second main pipeline (12) is connected with the second branch pipeline (24) through the fourth connecting pipeline (26), and the sixth valve (25) is arranged on the fourth connecting pipeline (26).

4. The natural gas pipeline pig launcher-receiver system of claim 3, wherein, The rotating shaft assembly (35) comprises a rotating shaft (48), a rotating shaft cover (49), a rotating shaft connecting plate (51) and a blind plate base connecting plate (52); The rotating shaft (48) is connected with the rotating shaft cover (49) at both ends, one side of the rotating shaft cover (49) is connected with the bottom surface of the plane thrust ball bearing, one end of the rotating shaft connecting plate (51) is fixedly connected with the other side of the rotating shaft cover (49), the other end of the rotating shaft connecting plate (51) is fixedly connected with the blind plate base connecting plate (52), and the blind plate base connecting plate (52) is fixedly connected with the blind plate base (44).

5. The natural gas pipeline pig launcher-receiver system of claim 4, wherein, The rotating shaft cover (49) is provided with a plurality of threaded holes, and a plurality of adjusting bolts (50) are threadedly connected to the threaded holes.

6. The natural gas pipeline pig launcher-receiver system of claim 5, wherein, Two arc-shaped locking rings corresponding to the two rotating connectors (38) are provided with positioning holes (45); the other arc-shaped locking ring is provided with a positioning column (47) which is connected with a U-shaped positioning member (46) arranged at the bottom of the blind plate base (44).

7. The natural gas pipeline pig launcher-receiver system of claim 1, wherein, The blind plate cover (32) is provided with a safety valve (33).

8. The natural gas pipeline pig launcher-receiver system of claim 3, wherein, The natural gas pipeline cleaning and receiving and sending ball cylinder system further comprises a remote control terminal, the remote control terminal comprises a central processing module, a display and control buttons, the display and the control buttons are connected with the central processing module, the central processing module is signal connected with the driving motor (27), the rotating motor, the first emptying valve (4), the second emptying valve (14) and the third emptying valve (21), the central processing module is further signal connected with the first mechanical pressure gauge (6), the second mechanical pressure gauge (16), the third mechanical pressure gauge (18), the fourth mechanical pressure gauge (53), the first electronic pressure transmitter (5), the second electronic pressure transmitter (15) and the third electronic pressure transmitter (22); In the ball sending cylinder system, the first electronic pressure transmitter (5) is electrically interlocked with the driving motor (27) of the ball sending cylinder system, and the driving motor (27) of the ball sending cylinder system is electrically interlocked with the rotating motor of the ball sending cylinder system. In the ball receiving cylinder system, the second electronic pressure transmitter (15) and the third electronic pressure transmitter (22) are electrically interlocked with the driving motor (27) of the ball receiving cylinder system, and the driving motor (27) of the ball receiving cylinder system is electrically interlocked with the rotating motor of the ball receiving cylinder system.

9. The natural gas pipeline pig launcher-receiver system of claim 8, wherein, The remote control terminal further comprises a loudspeaker connected with the central processing module.

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