CN214838438U

CN214838438U - Safe reflux unit is used to oil transportation

Info

Publication number: CN214838438U
Application number: CN202023325327.6U
Authority: CN
Inventors: 林峰峰; 薄纯勤
Original assignee: Ningxia Taifu Energy Storage Co Ltd
Current assignee: Ningxia Taifu Energy Storage Co Ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-11-23
Anticipated expiration: 2030-12-31

Abstract

The utility model belongs to the technical field of the backflow valve technique and specifically relates to a safe reflux unit is used to oil transportation, including the backward flow valve body, the inlet has been seted up to the entrance point of backward flow valve body, the liquid outlet has been seted up to the exit end of backward flow valve body, the internally mounted of backward flow valve body has the disk seat, the top of disk seat is equipped with corresponding valve clack, the top fixed mounting of lamella has the valve rod, the valve gap is installed at the top of backward flow valve body, the top of valve rod is located inside the valve gap, the inboard top fixed mounting of valve gap has actuating mechanism, actuating mechanism includes the inboard motor of fixed mounting at the valve gap, the output shaft fixed mounting of motor has first gear, the inboard rotation of valve gap installs the second gear, the coaxial fixed mounting in bottom of second gear has first bevel gear, the inboard rotation of valve gap installs two-way screw rod, the middle part fixed mounting of two-way screw rod has the second bevel gear. The utility model discloses can monitor pipeline internal pressure in real time, can in time carry out corresponding processing to pipeline internal pressure simultaneously, guarantee pipeline transportation safety.

Description

Safe reflux unit is used to oil transportation

Technical Field

The utility model relates to a backflow valve technical field especially relates to a safe reflux unit is used to oil transportation.

Background

The oil pipeline (also called pipeline, pipeline) is made up of oil line and its attachment, and according to the needs of the technological process, equip the corresponding oil pump unit, the design installs into a complete pipe-line system, is used for finishing the oil to connect and unload and transmit the task, the oil pipeline system, namely the pipe-line system used for transporting petroleum and petroleum products, mainly made up of oil pipeline, oil transportation station and other auxiliary relevant apparatus, it is one of the main apparatuses of the petroleum storage and transportation trade, it is the most main transport apparatus of crude oil and petroleum products, compared with belonging to the railway and highway oil transportation of the land transportation way, the oil transportation of pipeline has the transportation volume to be large, the leak tightness is good, with low costs and high safety coefficient characteristic;

because the air pressure exists in the transportation pipeline, a corresponding backflow valve needs to be arranged for backflow to reduce the pressure, so that the safety of pipeline transportation is ensured; the commonly used parallel type safety backflow valve in the prior art has many defects, for example, when the back pressure changes, the setting pressure of the valve is influenced, so that the stability of the valve is poor, and the valve cannot be adjusted in time according to the pressure change in the pipeline.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the prior art has the defect that the adjustment cannot be carried out in time according to the pressure change in the pipeline, and providing a safe reflux device for oil transportation.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the design is a safe backflow device for oil transportation, which comprises a backflow valve body, wherein an inlet is formed in the inlet end of the backflow valve body, a liquid outlet is formed in the outlet end of the backflow valve body, a valve seat is fixedly arranged in the backflow valve body, a corresponding valve clack is arranged above the valve seat and can be matched with the valve seat, a valve rod is fixedly arranged at the top end of the valve clack, the valve rod penetrates through the top end of the backflow valve body and is in sliding connection with the backflow valve body, a valve cover is fixedly arranged at the top of the backflow valve body through a bolt, the top end of the valve rod is positioned in the valve cover, a return spring is sleeved at the top end of the valve rod, a driving mechanism is fixedly arranged at the top of the inner side of the valve cover and comprises a motor fixedly arranged at the inner side of the valve cover, a first gear is fixedly arranged at the output shaft of the motor, and a second gear is rotatably arranged at the inner side of the valve cover, the second gear is meshed with the first gear, a first bevel gear is coaxially and fixedly mounted at the bottom end of the second gear, a bidirectional screw rod is rotatably mounted on the inner side of the valve cover, a second bevel gear is fixedly mounted in the middle of the bidirectional screw rod, and the second bevel gear is meshed with the first bevel gear.

Preferably, a linkage piece is installed on the bidirectional screw rod and comprises two symmetrical thread seats, the two thread seats are installed at two ends of the bidirectional screw rod in a threaded mode respectively, and the bottom ends of the two thread seats are hinged to connecting rods.

Preferably, the bottom ends of the connecting rods are provided with sliding plates, the sliding plates are slidably mounted on the inner side of the valve cover, the inner wall of the valve cover is provided with a sliding groove matched with the sliding plates, the sliding plates can slide in the sliding groove, and the bottom ends of the two connecting rods are hinged to the sliding plates.

Preferably, the outer end of the bidirectional screw is fixedly provided with a hand wheel, and the hand wheel is positioned on the outer side of the valve cover.

Preferably, the inboard fixed mounting of inlet has the baroceptor, fixed mounting has corresponding controller on the inner wall of valve gap, the baroceptor and controller signal connection, motor and controller electric connection.

Preferably, install corresponding sealing washer between valve clack and the disk seat, the bottom cover of valve rod is equipped with the uide bushing, the outside cover of uide bushing is equipped with the bellows.

The utility model provides a pair of safe reflux unit is used in oil transportation, beneficial effect lies in:

1. the first gear drives the second gear to rotate under the driving of the motor, the second gear continuously drives the first bevel gear to rotate, and the second bevel gear drives the bidirectional screw to rotate due to the meshing of the first bevel gear and the second bevel gear; the hand wheel has the function of driving the bidirectional screw rod to rotate in a manual rotation mode, so that emergency operation can be performed under the condition of motor failure;

2. the two threaded seats move towards or away from each other through the rotation of the bidirectional screw rod, so that the connecting rod drives the sliding plate to move downwards or upwards, and the valve rod drives the valve clack to close or open;

3. the air pressure sensor can monitor the air pressure in the backflow valve body, when the pressure is too high, the air pressure sensor sends detection data to the controller, then the controller controls the motor to be started, so that the bidirectional screw rod rotates, the threaded seat moves back to open the valve clack, and the liquid backflow reduces the pressure in the pipeline; therefore, the internal pressure of the pipeline can be monitored in real time, and meanwhile, the internal pressure of the pipeline can be timely and correspondingly processed, so that the safety of pipeline transportation is ensured.

Drawings

Fig. 1 is a schematic structural view of a safety backflow device for oil transportation according to the present invention;

fig. 2 is a schematic structural diagram of a driving mechanism of the safety backflow device for oil transportation according to the present invention.

In the figure: the backflow valve comprises a backflow valve body 1, a liquid inlet 2, a liquid outlet 3, an air pressure sensor 4, a valve seat 5, a sealing ring 51, a valve clack 6, a guide sleeve 7, a corrugated pipe 8, a valve cover 10, a valve rod 11, a return spring 12, a driving mechanism 13, a motor 131, a first gear 132, a second gear 133, a first bevel gear 134, a two-way screw 135, a second bevel gear 136, a hand wheel 137, a linkage piece 138, a threaded seat 1381, a connecting rod 1382, a sliding plate 1383, a sliding groove 1384 and a controller 139.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a safe backflow device for oil transportation comprises a backflow valve body 1, wherein an inlet end of the backflow valve body 1 is provided with a liquid inlet 2, an outlet end of the backflow valve body 1 is provided with a liquid outlet 3, a valve seat 5 is fixedly mounted inside the backflow valve body 1, a corresponding valve flap 6 is arranged above the valve seat 5, the valve flap 6 can be matched with the valve seat 5, a valve rod 11 is fixedly mounted at the top end of the valve flap 6, the valve rod 11 penetrates through the top end of the backflow valve body 1 and is in sliding connection with the backflow valve body 1, a corresponding sealing ring 51 is mounted between the valve flap 6 and the valve seat 5, a guide sleeve 7 is sleeved at the bottom end of the valve rod 11, and a corrugated pipe 8 is sleeved outside the guide sleeve 7; the top of the backflow valve body 1 is fixedly provided with a valve cover 10 through a bolt, the top end of a valve rod 11 is positioned inside the valve cover 10, and the top end of the valve rod 11 is sleeved with a return spring 12; the bellows 8 can be certain reverse buffer power for valve clack 6, avoids valve clack 6 and disk seat 5 cooperation back to be influenced by pressure and be difficult to open.

The top of the inner side of the valve cap 10 is fixedly provided with a driving mechanism 13, the driving mechanism 13 comprises a motor 131 fixedly arranged on the inner side of the valve cap 10, an output shaft of the motor 131 is fixedly provided with a first gear 132, the inner side of the valve cap 10 is rotatably provided with a second gear 133, the second gear 133 is meshed with the first gear 132, the bottom end of the second gear 133 is coaxially and fixedly provided with a first bevel gear 134, the inner side of the valve cap 10 is rotatably provided with a bidirectional screw 135, the middle part of the bidirectional screw 135 is fixedly provided with a second bevel gear 136, the second bevel gear 136 is meshed with the first bevel gear 134, the outer end of the bidirectional screw 135 is fixedly provided with a hand wheel 137, and the hand wheel 137 is positioned on the outer side of the valve cap 10; the first gear 132 drives the second gear 133 to rotate through the driving of the motor 131, while the second gear 133 continues to drive the first bevel gear 134 to rotate, and the second bevel gear 136 drives the two-way screw 135 to rotate because the first bevel gear 134 is meshed with the second bevel gear 136; the handwheel 137 is used for driving the bidirectional screw 135 to rotate in a manual rotating mode, so that emergency operation can be performed in the case of the motor 131 failure.

Install linkage 138 on the two-way screw rod 135, linkage 138 includes two screw thread seats 1381 of mutual symmetry, two screw thread seats 1381 are the both ends at two-way screw rod 135 respectively in the screw thread, the bottom of two screw thread seats 1381 all articulates there is connecting rod 1382, the bottom of connecting rod 1382 is equipped with sliding plate 1383, sliding plate 1383 slidable mounting is inboard at valve gap 10, seted up on the inner wall of valve gap 10 with sliding plate 1383 assorted spout 1384, sliding plate 1383 can slide in spout 1384, the bottom of two connecting rods 1382 all articulates with sliding plate 1383. The two screw bases 1381 are moved toward or away from each other by the rotation of the two-way screw 135, which causes the link 1382 to move the sliding plate 1383 downward or upward, and the valve rod 11 to close or open the valve flap 6.

An air pressure sensor 4 is fixedly installed on the inner side of the liquid inlet 2, a corresponding controller 139 is fixedly installed on the inner wall of the valve cover 10, the air pressure sensor 4 is in signal connection with the controller 139, and the motor 131 is electrically connected with the controller 139. The air pressure sensor 4 can monitor the air pressure inside the backflow valve body 1, when the pressure is too high, the air pressure sensor 4 sends detection data to the controller 139, then the controller 139 controls the motor 131 to start, so that the bidirectional screw 135 rotates, the threaded seat 1381 moves back to open the valve clack 6, and the liquid backflow reduces the pressure inside the pipeline; therefore, the internal pressure of the pipeline can be monitored in real time, and meanwhile, the internal pressure of the pipeline can be timely and correspondingly processed, so that the safety of pipeline transportation is ensured.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a safe reflux unit is used in oil transportation, includes backward flow valve body (1), inlet (2) have been seted up to the entrance point of backward flow valve body (1), liquid outlet (3) have been seted up to the exit end of backward flow valve body (1), its characterized in that, the inside fixed mounting of backward flow valve body (1) has disk seat (5), the top of disk seat (5) is equipped with corresponding valve clack (6), valve clack (6) can cooperate with disk seat (5), the top fixed mounting of valve clack (6) has valve rod (11), valve rod (11) run through the top of backward flow valve body (1), and with backward flow valve body (1) sliding connection, there is valve gap (10) at the top of backward flow valve body (1) through bolt fixed mounting, the top of valve rod (11) is located inside valve gap (10), the top cover of valve rod (11) is equipped with reply spring (12), the top of the inner side of the valve cover (10) is fixedly provided with a driving mechanism (13), the driving mechanism (13) comprises a motor (131) fixedly arranged on the inner side of the valve cover (10), an output shaft of the motor (131) is fixedly provided with a first gear (132), the inner side of the valve cover (10) is rotatably provided with a second gear (133), the second gear (133) is meshed with the first gear (132), the bottom end of the second gear (133) is coaxially and fixedly provided with a first bevel gear (134), the inner side of the valve cover (10) is rotatably provided with a bidirectional screw (135), the middle part of the bidirectional screw (135) is fixedly provided with a second bevel gear (136), and the second bevel gear (136) is meshed with the first bevel gear (134);

the bidirectional screw (135) is provided with a linkage piece (138), the linkage piece (138) comprises two symmetrical thread seats (1381), the two thread seats (1381) are respectively installed at two ends of the bidirectional screw (135) in a threaded manner, and the bottom ends of the two thread seats (1381) are respectively hinged with a connecting rod (1382); the bottom ends of the connecting rods (1382) are provided with sliding plates (1383), the sliding plates (1383) are slidably mounted on the inner side of the valve cover (10), the inner wall of the valve cover (10) is provided with sliding grooves (1384) matched with the sliding plates (1383), the sliding plates (1383) can slide in the sliding grooves (1384), and the bottom ends of the two connecting rods (1382) are hinged to the sliding plates (1383); a hand wheel (137) is fixedly installed at the outer end of the bidirectional screw rod (135), and the hand wheel (137) is positioned on the outer side of the valve cover (10); the inboard fixed mounting of inlet (2) has baroceptor (4), fixed mounting has corresponding controller (139) on the inner wall of valve gap (10), baroceptor (4) and controller (139) signal connection, motor (131) and controller (139) electric connection.

2. The oil transportation safety backflow device as claimed in claim 1, wherein a corresponding sealing ring (51) is installed between the valve flap (6) and the valve seat (5), a guide sleeve (7) is sleeved at the bottom end of the valve rod (11), and a corrugated pipe (8) is sleeved on the outer side of the guide sleeve (7).