Flame arrester lifting device

Abstract

The utility model relates to the technical field of oil tanks, in particular to a flame arrester lifting device which comprises a supporting platform, a rotating pipe assembly, a limiting assembly capable of limiting rotation of the rotating pipe assembly and a transverse pipe used for connecting the oil tank and the rotating pipe assembly, and the limiting assembly and the rotating pipe assembly are arranged on the supporting platform. The rotating pipe assembly comprises a main pipe, a sealing structure and a sleeve arranged on the periphery of the main pipe in a sleeving mode, the main pipe is installed on the supporting platform, one end of the main pipe is rotationally connected with the transverse pipe, the sealing structure is arranged between one end of the sleeve and the other end of the main pipe, and the other end of the sleeve is used for arranging a flame arrester. The limiting assembly is used for limiting the main pipe, the output end of the lifting mechanism is connected with the sleeve, and the lifting mechanism drives the sleeve to move in the axial direction of the main pipe. The length of the rotating pipe assembly can be adjusted according to needs through the lifting mechanism, the height requirements of the flame arrester in different scenes can be met, and the space occupied by maintenance is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of oil tank, more particularly, relate to a fire arrester lifting device. BACKGROUND

[0002] In the oil depot receiving and delivering oil process, some quality recovery tanks adopt buried tanks, the air vent of the buried tank needs to be equipped with a fire arrester, and the fire arrester of the buried tank in the oil receiving and delivering pump shed shall be lower than the highest building within a radius of 15 meters from the fire arrester by more than 1.5 meters according to the specification requirements; the buried tank is outdoor, and according to the specification requirements, it shall be higher than the ground by 4 meters, most of the oil pump shed is about 6 meters high, plus 1.5 meters, the height of the fire arrester reaches 7.5 meters, the fire arrester is a periodical maintenance equipment, and the fire arrester on the top of the oil pump shed has the problem of difficult inspection and maintenance.

[0003] The prior art discloses an oil tank breather valve fire arrester lifting device, which comprises a horizontal pipe arranged on one side of an oil tank, a vertical pipe fixedly connected with the horizontal pipe and used for arranging a breather valve fire arrester at one end, a rotating device arranged on the horizontal pipe and used for rotating the horizontal pipe around the axis of the horizontal pipe, and a first limiting mechanism capable of limiting the rotation of the rotating device, and the vertical pipe, the horizontal pipe and the oil tank are in communication with each other. In the scheme, the vertical pipe can be rotated to a horizontal state by the rotating device, so that the maintenance of the breather valve fire arrester is facilitated. However, in the scheme, the length of the vertical pipe is fixed, and the vertical pipe cannot be applied to the height requirements of different installation sites, and the space occupied by the vertical pipe after being laid down is large. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects of the prior art, and provides a fire arrester lifting device, which can adapt to the height requirements of the fire arrester in different scenes and reduce the space occupied during maintenance.

[0005] To solve the above technical problems, the utility model adopts the technical scheme: providing a fire arrester lifting device, which comprises a support platform, a rotating pipe assembly, a limiting assembly capable of limiting the rotation of the rotating pipe assembly, a horizontal pipe for connecting the oil tank and the rotating pipe assembly, the limiting assembly and the rotating pipe assembly are respectively arranged on the support platform, and a lifting mechanism arranged on the support platform, the rotating pipe assembly comprises a main pipe, a sealing structure and a sleeve pipe sleeved on the outer periphery of the main pipe, the main pipe is installed on the support platform, one end of the main pipe is rotatably connected with the horizontal pipe, the sealing structure is arranged between the other end of the main pipe and one end of the sleeve pipe, the other end of the sleeve pipe is used for arranging a fire arrester, the limiting assembly is used for limiting the main pipe, the output end of the lifting mechanism is connected with the sleeve pipe, and the lifting mechanism drives the sleeve pipe to move along the axial direction of the main pipe.

[0006] The fire arrester lifting device of the utility model, when in use, rotates the rotating pipe assembly provided with the fire arrester to the vertical state of the sleeve pipe and the horizontal pipe, fixes the main pipe through the limiting assembly, drives the sleeve pipe to move up through the lifting mechanism, and makes the fire arrester reach the designated height, wherein the main pipe and the sleeve pipe are sealed through the sealing structure to prevent oil gas leakage; when the fire arrester needs to be repaired, after the sleeve pipe is driven to descend to the position along the main pipe through the lifting mechanism, the constraint of the limiting assembly on the main pipe is released, the main pipe is rotated, and then the sleeve pipe and the fire arrester thereon are lowered, thereby facilitating the repair.

[0007] Further, the lifting mechanism comprises a hand wheel, a transmission assembly, a lead screw, a fixed table, a nut and a moving table, the sleeve pipe is arranged in the fixed table, two ends of the lead screw are rotatably arranged in the fixed table and the support platform respectively, the transmission assembly is arranged on the support platform, the hand wheel is in transmission connection with the lead screw through the transmission assembly, the lead screw is in sliding connection with the nut, and the nut is fixedly connected with the sleeve pipe through the moving table. Rotating the hand wheel drives the lead screw to rotate through the transmission assembly; since the nut is fixedly connected with the sleeve pipe through the moving table, the sleeve pipe is arranged on the outer periphery of the main pipe, the nut and the moving table are lifted along the lead screw under the guidance of the main pipe, thereby driving the sleeve pipe to lift along the main pipe, and the height of the fire arrester is adjusted.

[0008] Further, the fixed table is provided with a through hole, the sleeve pipe is arranged in the through hole, and the through hole is provided with a guide plate in the circumferential direction. The central axis of the through hole is always coincident with the central axis of the sleeve pipe in the movement process of the sleeve pipe, and the fixed table is prevented from deviating, and meanwhile, the structural strength of the fixed table is also enhanced through the guide plate.

[0009] Further, the utility model further comprises a supporting rod, one end of the supporting rod is movably connected with the fixed table, and the other end of the supporting rod is detachably connected with the ground.

[0010] Further, the bottom inner wall of the sleeve pipe is provided with a groove, and the sealing structure is arranged in the groove.

[0011] Further, the sealing structure is an O-shaped sealing ring. The O-shaped sealing ring has a self-sealing effect, does not need to be adjusted periodically, can realize bidirectional sealing, has reliable sealing performance, is suitable for various sealing media, can be used for static sealing and dynamic sealing, the O-shaped sealing ring can realize the sealing between the sleeve pipe and the main pipe to prevent oil gas leakage since relative movement occurs between the sleeve pipe and the main pipe during the operation of the lifting mechanism.

[0012] Further, the support platform comprises a base, a support seat, a rotating table and a rotating seat, the support seat is fixedly arranged on the top of the base, the rotating seat is fixedly arranged on the bottom of the rotating table, one end of the main pipe sequentially penetrates through the rotating table and the rotating seat, the main pipe is rotationally connected with the support seat, and the limiting assembly is arranged on the base. In use, the limiting assembly is first in the unlimiting state, the sleeve pipe is in the lower limit position, the main pipe is first rotated to drive the rotating table, the rotating seat and the lifting mechanism to rotate until the sleeve pipe is in the vertical state, then the limiting assembly is used to fix and limit the main pipe, then the hand wheel is rotated to drive the screw rod to rotate, drive the moving table and the sleeve pipe to move upwards until the flame arrester reaches the specified height; during maintenance, the hand wheel is reversely rotated to make the sleeve pipe descend to the lower limit position, then the limiting of the main pipe by the limiting assembly is released, the main pipe is rotated to drive the lifting mechanism, the sleeve pipe and the flame arrester to rotate, and the sleeve pipe is laid down for maintenance.

[0013] Further, the limiting assembly comprises a fixing seat, a rotating rod and a locking piece, the rotating table is provided with a U-shaped groove, the fixing seat is arranged on the top of the base, one end of the rotating rod is rotationally connected with the fixing seat, the other end of the rotating rod penetrates through the U-shaped groove and is connected with the locking piece, the limiting assembly is provided with at least two groups, and the rotating shafts of the at least two rotating rods intersect.

[0014] Further, the top of the fixing seat is provided with a connecting seat, and the rotating rod is rotationally connected with the connecting seat through a rotating shaft. In use, the main pipe is first rotated to the sleeve pipe in the vertical direction, the rotating rod is rotated around the rotating shaft to make the rotating rod enter the corresponding U-shaped groove, the locking piece is used to fix the rotating rod and the rotating table, the rotating table and the main pipe are fixed and limited through the fixing of the at least two rotating rods intersecting with the rotating table on the rotating shaft of the base, the opening directions of the U-shaped grooves corresponding to the rotating rods intersecting with the rotating shaft are different, the opening directions of the U-shaped grooves of the rotating table and the main pipe are prevented from being changed, and the effective limiting of the limiting assembly is ensured.

[0015] Further, the cross pipe is connected with the main pipe through a universal joint.

[0016] Compared with the prior art, the device can adapt to the height requirement of the flame arrester in different scenes and reduce the occupied space during maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic view of the composition of the flame arrester lifting device in the embodiment of the utility model;

[0018] Figure 2 It is a schematic view of the composition of the flame arrester lifting device in the embodiment of the utility model; Figure 1 It is an enlarged view of part A in the embodiment of the utility model;

[0019] Figure 3 It is an installation schematic view of the limiting assembly in the embodiment of the utility model;

[0020] Figure 4 It is the installation schematic view of the rotating pipe assembly in the embodiment of the utility model.

[0021] In the drawing: 1-supporting platform;11-base;12-supporting seat;13-rotating table;131-U-shaped groove;14-rotating seat;2-rotating pipe assembly;21-main pipe;22-sleeve;23-sealing structure;3-limiting assembly;31-fixed seat;32-rotating rod;33-locking piece;34-connecting seat;35-rotating shaft;4-cross pipe;5-fire stopper;6-lifting mechanism;61-hand wheel;62-transmission assembly;63-screw;64-fixed table;641-guide plate;65-nut;66-moving table;7-gimbal;8-bracing rod. DETAILED DESCRIPTION

[0022] The utility model will be further explained in connection with specific implementation. Among them, the drawing is only for example explanation, and the representation is only schematic diagram, and not the real object drawing, and can not be understood as the limitation of this patent;In order to better illustrate the embodiment of the utility model, some components of the drawing will be omitted, enlarged or reduced, and not represent the size of actual product;For those skilled in the art, it is understandable that some well-known structures in the drawing and its description can be omitted.

[0023] The same or similar signs in the drawing of the embodiment of the utility model correspond to the same or similar parts;In the description of the utility model, it is understood that if the orientation or position relationship indicated by the terms "upper", "lower", "left", "right" etc. is based on the orientation or position relationship shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a particular orientation, a particular orientation and operation, therefore the position relationship of the term described in the drawing is only for example explanation, and can not be understood as the limitation of this patent, for the ordinary skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0024] Embodiment one

[0025] The embodiment is the first embodiment of fire stopper lifting device, as shown in Figure 1 、 Figure 2 and Figure 4As shown, the device comprises a support platform 1, a rotating pipe assembly 2, a limiting assembly 3 for limiting the rotation of the rotating pipe assembly 2, a cross pipe 4 for connecting the oil tank and the rotating pipe assembly 2, the limiting assembly 3 and the rotating pipe assembly 2 are respectively arranged on the support platform 1; and a lifting mechanism 6 arranged on the support platform 1; the rotating pipe assembly 2 comprises a main pipe 21, a sealing structure 23 and a sleeve pipe 22 sleeved on the outer periphery of the main pipe 21, the main pipe 21 is installed on the support platform 1, one end of the main pipe 21 is rotationally connected with the cross pipe 4, the sealing structure 23 is arranged between the other end of the main pipe 21 and one end of the sleeve pipe 22, the other end of the sleeve pipe is used for arranging the flame arrester 5, the limiting assembly 3 is used for limiting the main pipe 21, and the output end of the lifting mechanism 6 is connected with the sleeve pipe 22, the lifting mechanism 6 drives the sleeve pipe 22 to move along the axial direction of the main pipe 21.

[0026] The above-mentioned flame arrester lifting device, when in use, rotates the rotating pipe assembly 2 provided with the flame arrester 5 to be perpendicular to the cross pipe 4, fixes the main pipe 21 through the limiting assembly 3, drives the sleeve pipe 22 to move upward through the lifting mechanism 6, and makes the flame arrester 5 reach a specified height, wherein the main pipe 21 and the sleeve pipe 22 are sealed through the sealing structure 23 to prevent oil gas leakage; when the flame arrester 5 needs to be repaired, after the sleeve pipe 22 is driven by the lifting mechanism 6 to move downward along the main pipe 21 to a position, the constraint of the limiting assembly 3 on the main pipe 21 is released, the main pipe 21 is rotated, and then the sleeve pipe 22 and the flame arrester 5 thereon are lowered, thereby facilitating the repair. In the embodiment, the length of the rotating pipe assembly 2 can be adjusted according to the need through the lifting mechanism 6, the height of the flame arrester 5 in different scenes can be adapted, and the space occupied during the repair can be reduced.

[0027] As shown in Figures 2 to 4 , the lifting mechanism 6 comprises a hand wheel 61, a transmission assembly 62, a lead screw 63, a fixed table 64, a nut 65 and a moving table 66, the sleeve pipe 22 is arranged in the fixed table 64, both ends of the lead screw 63 are rotationally installed on the fixed table 64 and the support platform 1 respectively, the transmission assembly 62 is arranged on the support platform 1, the hand wheel 61 is in transmission connection with the lead screw 63 through the transmission assembly 62, the lead screw 63 is in sliding connection with the nut 65, and the nut 65 is in fixed connection with the sleeve pipe 22 through the moving table 66. In implementation, the hand wheel 61 is rotated, the lead screw 63 is driven to rotate through the transmission assembly 62, the sleeve pipe 22 is sleeved on the outer periphery of the main pipe 21, the nut 65 and the moving table 66 are lifted along the lead screw 63 under the guidance of the main pipe 21, thereby driving the sleeve pipe 22 to be lifted along the main pipe 21, and the height of the flame arrester 5 is adjusted.

[0028] As shown in Figure 2 , Figure 4As shown, the fixed table 64 is provided with a through hole, the sleeve 22 is arranged in the through hole, and the through hole is provided with guide plates 641 in the circumferential direction. In actual implementation, when the hand wheel 61 is rotated, the lead screw 63 is driven to rotate through the transmission assembly 62, the nut 65 and the moving table 66 are moved, and in the process of lifting the sleeve 22 along the main pipe 21, the sleeve 22 slides in the through hole, at the same time, the guide plates 641 can guide the sleeve 22 and limit the fixed table 64. Specifically, the four guide plates 641 are uniformly and spacedly arranged in the circumferential direction of the through hole, so as to ensure that the central axis of the through hole always coincides with the central axis of the sleeve 22 in the process of moving the sleeve 22, prevent the fixed table 64 from deviating, and at the same time, the guide plates 641 can also enhance the structural strength of the fixed table 64.

[0029] The inner wall of the bottom of the sleeve 22 is provided with a groove, and the sealing structure 23 is installed in the groove. Specifically, the sealing structure 23 is an O-shaped sealing ring. The O-shaped sealing ring has a self-sealing effect, does not need to be adjusted periodically, can realize bidirectional sealing, has reliable sealing performance, is suitable for various different sealing media, can be used for static sealing and dynamic sealing, and since relative movement occurs between the sleeve 22 and the main pipe 21 when the lifting mechanism 6 works, the O-shaped sealing ring can realize sealing between the sleeve 22 and the main pipe 21, thereby preventing oil and gas from leaking.

[0030] Embodiment two

[0031] This embodiment is a second embodiment of the flame arrester lifting device, which is similar to the first embodiment, and the difference lies in that, as shown in Figure 3 As shown, the support platform 1 includes a base 11, a support seat 12, a rotating table 13 and a rotating seat 14, the support seat 12 is fixedly arranged on the top of the base 11, the rotating seat 14 is fixedly arranged on the bottom of the rotating table 13, one end of the main pipe 21 passes through the rotating table 13 and the rotating seat 14 in sequence, the main pipe 21 is rotationally connected with the support seat 12, and the limiting assembly 3 is arranged on the base 11. Specifically, one end of the cross pipe 4 is fixedly connected with an oil tank, and the other end of the cross pipe 4 is connected with the main pipe 21 through the universal joint 7. In use, the limiting assembly 3 is first in the unlimiting state, the sleeve 22 is in the lower stop position, the main pipe 21 is first rotated, the rotating table 13, the rotating seat 14 and the lifting mechanism 6 are driven to rotate, until the sleeve 22 is in the vertical state, then the limiting assembly 3 is used to limit and fix the main pipe 21, then the hand wheel 61 is rotated, the lead screw 63 is rotated, the moving table 66 and the sleeve 22 are driven to move upwards, until the flame arrester 5 reaches the specified height; in maintenance, the hand wheel 61 is reversely rotated, the sleeve 22 is lowered to the lower stop position, then the limiting of the main pipe 21 by the limiting assembly 3 is released, the main pipe 21 is rotated, the lifting mechanism 6, the sleeve 22 and the flame arrester 5 are driven to rotate, the sleeve 22 is laid down, and then maintenance is performed.

[0032] As shown in Figure 3As shown, the limiting assembly 3 comprises a fixed seat 31, a rotating rod 32 and a locking piece 33. The rotating table 13 is provided with a U-shaped groove 131. The fixed seat 31 is arranged on the top of the base 11. One end of the rotating rod 32 is rotatably connected with the fixed seat 31. The other end of the rotating rod 32 penetrates through the U-shaped groove 131 and is connected with the locking piece 33. The limiting assembly 3 is provided with at least two groups, and the rotating shafts of the at least two rotating rods 32 intersect. Specifically, the top of the fixed seat 31 is provided with a connecting seat 34. The rotating rod 32 is rotatably connected with the connecting seat 34 through a rotating shaft 35. In use, the main pipe 21 is first rotated to the vertical direction of the sleeve pipe 22. The rotating rod 32 is rotated about the rotating shaft 35, so that the rotating rod 32 enters the corresponding U-shaped groove 131. The rotating rod 32 is fixed with the rotating table 13 by the locking piece 33. Through the fixing of the at least two rotating rods 32 with the rotating table 13 on the rotating shafts of the base 11, the rotating table 13 and the main pipe 21 are fixed and limited. The opening directions of the corresponding U-shaped grooves 131 of the rotating rods 32 intersecting with each other are different, so that the opening directions of the U-shaped grooves 131 of the rotating table 13 and the main pipe 21 are prevented from being changed. The effective limiting of the limiting assembly 3 is ensured.

[0033] Embodiment three

[0034] The third embodiment of the fire arrester lifting device is similar to the second embodiment. As shown in Figure 1 , Figure 2 and Figure 4 , the device further comprises a supporting rod 8. One end of the supporting rod 8 is movably connected with the fixed table 64. The other end of the supporting rod 8 is detachably connected with the ground. Specifically, supporting feet are arranged on the ground. When the sleeve pipe 22 needs to be placed down for maintenance, the supporting rod 8 is disconnected with the ground. The sleeve pipe 22 is driven by the lifting mechanism 6 to descend along the main pipe 21 to the lower stop position. The limiting assembly 3 is unlocked. The main pipe 21 and the rotating table 13 are rotated. The sleeve pipe 22 is placed down for equipment maintenance. After the maintenance, the main pipe 21 and the rotating table 13 are reversely rotated, so that the sleeve pipe 22 is in the vertical direction. The main pipe 21 and the rotating table 13 are limited and fixed by the limiting assembly 3. One maintenance personnel supports the supporting rod 8 and connects the supporting rod 8 with the supporting feet on the ground. The fixed table 64 is supported by the supporting rod 8. The other maintenance personnel operates the hand wheel 61 to extend or retract the sleeve pipe 22 to the specified height of the fire arrester 5.

[0035] In the specific contents of the above specific embodiments, any non-contradictory combination of technical features can be made. In order to make the description simple, all possible combinations of the above technical features are not described. However, as long as the combination of the technical features does not exist, it should be considered as the scope of the description.

[0036] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.

Claims

1. A fire arrester lifting device, comprising a support platform (1), a rotating tube assembly (2), a limiting assembly (3) capable of limiting the rotation of the rotating tube assembly (2), and a cross tube (4) for connecting the oil tank and the rotating tube assembly (2), the limiting assembly (3) and the rotating tube assembly (2) being respectively arranged on the support platform (1); characterized in that, The lifting mechanism (6) is arranged on the support platform (1), the rotating tube assembly (2) comprises a main tube (21), a sealing structure (23) and a sleeve tube (22) sleeved on the outer periphery of the main tube (21), one end of the main tube (21) is rotatably connected with the horizontal tube (4), the sealing structure (23) is arranged between the other end of the main tube (21) and one end of the sleeve tube (22), the other end of the sleeve tube is used for arranging a fire arrester (5), the limiting assembly (3) is used for limiting the main tube (21), the output end of the lifting mechanism (6) is connected with the sleeve tube (22), and the lifting mechanism (6) drives the sleeve tube (22) to move along the axial direction of the main tube (21).

2. The fire damper lift device of claim 1, wherein, The lifting mechanism (6) comprises a hand wheel (61), a transmission assembly (62), a lead screw (63), a fixed table (64), a nut (65) and a moving table (66), the sleeve tube (22) is arranged on the fixed table (64), the two ends of the lead screw (63) are rotatably arranged on the fixed table (64) and the support platform (1) respectively, the transmission assembly (62) is arranged on the support platform (1), the hand wheel (61) is in transmission connection with the lead screw (63) through the transmission assembly (62), the lead screw (63) is in sliding connection with the nut (65), and the nut (65) is fixedly connected with the sleeve tube (22) through the moving table (66).

3. The fire stop raiser device of claim 2, wherein, The fixed table (64) is provided with a through hole, the sleeve tube (22) is arranged on the through hole, and the through hole is provided with a guide plate (641) in the circumferential direction.

4. The fire damper lift according to claim 2, wherein, The support platform (1) further comprises a support base (11), a support seat (12), a rotating table (13) and a rotating seat (14), the support seat (12) is fixedly arranged on the top of the support base (11), the rotating seat (14) is fixedly arranged on the bottom of the rotating table (13), one end of the main tube (21) sequentially penetrates through the rotating table (13) and the rotating seat (14), the main tube (21) is rotatably connected with the support seat (12), and the limiting assembly (3) is arranged on the support base (11).

5. The fire damper lift device of claim 1, wherein, The limiting assembly (3) comprises a fixed seat (31), a rotating rod (32) and a locking piece (33), the rotating table (13) is provided with a U-shaped groove (131), the fixed seat (31) is arranged on the top of the support base (11), one end of the rotating rod (32) is rotatably connected with the fixed seat (31), the other end of the rotating rod (32) penetrates through the U-shaped groove (131) and is connected with the locking piece (33), the limiting assembly (3) is provided with at least two groups, and the rotating shafts of the at least two rotating rods (32) intersect.

6. The fire damper lift device of claim 5, wherein, ​ 7. The fire stop raiser device of claim 1, wherein, ​ 8. The fire damper lift according to claim 7, wherein, ​ 9. The fire damper lift device of claim 8, wherein, The fixed seat (31) is provided with a connecting seat (34) at the top, and the rotating rod (32) is rotationally connected with the connecting seat (34) through a rotating shaft (35).

10. The fire damper lift device of any one of claims 1 to 9, wherein, The cross pipe (4) is connected with the main pipe (21) through a universal joint (7).

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