Pickling spraying device for gas storage tank

Abstract

The utility model discloses a pickling spraying device for a gas storage tank, which comprises a carrier roller mechanism supported at the bottom of a horizontal tank body and used for driving the tank body to rotate; the core pipe is inserted from a preset flange opening at one end of the tank body; a swing rod is hinged to the outer wall of the front end of the core pipe, a connecting rod is hinged to the side face of the swing rod, and the other end of the connecting rod is hinged to a sliding block prearranged in the core pipe and used for driving the swing rod to be opened or closed when the sliding block slides. The tail end of the swing rod is fixedly connected with a spray head, the tail part of the spray head is connected with a hose, the middle part of the hose is fixedly connected with the outer wall of the core tube, and the tail end of the hose extends out of the tank body, is connected with a pickling supply device and is used for providing a high-pressure pickling solution for the spray head; the sliding block is fixedly connected with the tail end of a telescopic rod of an electric cylinder, and the electric cylinder is fixedly connected to the tail end of the core tube and used for driving the sliding block to slide. According to the pickling tank, pickling liquid is poured into the tank body in a spraying manner, so that a pickling blind area is avoided, the consumption of the pickling liquid is reduced, and the pickling quality is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tank container manufacturing and relates to a pickling spray device for a gas storage tank. Background Art

[0002] After large tanks are welded and formed, burrs and rust inside the tanks are often removed by pickling. A common pickling method involves placing the horizontal tank on a roller mechanism, rotating the tank, and then injecting pickling liquid into the tank. The rotation of the tank gradually pickles the inner wall. The problem with this method is that, first, the pickling liquid accumulates at the bottom of the tank, allowing the side walls to be pickled as the tank rotates. However, there are blind spots for pickling at both ends of the tank, especially for special-shaped tanks such as conical tanks. Second, injecting pickling liquid directly into the tank consumes a large amount of pickling liquid, and the amount of pickling is difficult to control, which can easily lead to excessive corrosion. Utility Model Content

[0003] In order to overcome the deficiencies in the background technology, the utility model provides a gas tank pickling spray device, the purpose of which is to use spraying instead of directly pouring pickling liquid into the tank body, avoid pickling blind areas, reduce the consumption of pickling liquid, and improve the quality of pickling.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] A gas tank pickling spray device comprises a roller mechanism supported on the bottom of a horizontally lying tank body, for driving the tank body to rotate; and a core tube inserted from a preset flange opening at one end of the tank body; a rocker arm is hinged to the outer wall of the front end of the core tube, the side of the rocker arm is hinged to a connecting rod, the other end of the connecting rod is hinged to a slider preset in the core tube, for driving the rocker arm to open or close when the slider slides; the end of the rocker arm is fixedly connected to a spray head, the tail of the spray head is connected to a hose, the middle part of the hose is fixedly connected to the outer wall of the core tube, the end of the hose extends out of the tank body and is connected to a pickling supply device, for providing high-pressure pickling liquid to the spray head; the slider is fixedly connected to the end of the telescopic rod of the electric cylinder, and the electric cylinder is fixedly connected to the tail end of the core tube, for driving the slider to slide.

[0006] As a further optimization, a notch is provided on the outer wall of the core tube; a hinge seat fixedly connected to the slider extends out of the core tube from the notch for hinged connection of the connecting rod.

[0007] As a further optimization, there are multiple rocker arms, evenly distributed around the circumference of the core tube, and each rocker arm is correspondingly connected to the connecting rod and the nozzle; each nozzle is connected to the hose; all hoses are connected to the pickling supply device; there are multiple notches on the corresponding core tube, and each notch corresponds to one of the hinged seats.

[0008] As a further optimization, the pickling supply device includes a liquid storage tank for storing the pickling liquid, the liquid storage tank is connected to a pressure pump, and the pressure pump is connected to the collecting pipe through a connecting pipe; the end of the hose is connected to the collecting pipe.

[0009] As a further optimization, it also includes a vehicle body with universal wheels at the bottom, and the pickling supply device is installed on the vehicle body; a support frame is fixedly provided on the vehicle body, and the upper end of the support frame is fixedly connected to the tail of the core tube.

[0010] The beneficial effects of the utility model are as follows: the utility model can inject pickling liquid into the tank body in a spraying manner, thereby avoiding pickling blind areas, reducing the consumption of pickling liquid, and improving the quality of pickling. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0012] Figure 2 It is a partial schematic diagram of the swing arm after unfolding according to the embodiment of the present utility model.

[0013] The correspondence between the technical features and the reference numerals in the figure is: tank body 1; flange opening 11; roller mechanism 2; core tube 3; rocker arm 31; connecting rod 32; slider 33; electric cylinder 34; notch 35; hinged seat 36; nozzle 4; hose 41; liquid storage tank 42; pressure pump 43; connecting pipe 44; collecting pipe 45; pipe clamp 46; vehicle body 5; universal wheel 51; support frame 52. DETAILED DESCRIPTION

[0014] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0015] Example 1, please refer to Figure 1-2The utility model provides a gas tank pickling spraying device, comprising a roller mechanism 2 supported on the bottom of a horizontally lying tank body 1, for driving the tank body 1 to rotate; it also comprises a core tube 3 inserted from a preset flange opening 11 at one end of the tank body 1; a swing arm 31 is hinged on the outer wall of the front end of the core tube 3, and a connecting rod 32 is hinged on the side of the swing arm 31, and the other end of the connecting rod 32 is hinged on a slider 33 preset in the core tube 3, for driving the swing arm 31 to open or close when the slider 33 slides; the end of the swing arm 31 is fixedly connected to the spray head 4, and the tail of the spray head 4 is connected to a hose 41, the middle part of the hose 41 is fixedly connected to the outer wall of the core tube 3, and its end extends out of the tank body 1 and is connected to a pickling supply device, for providing high-pressure pickling liquid to the spray head 4; the slider 33 is fixedly connected to the end of the telescopic rod of the electric cylinder 34, and the electric cylinder 34 is fixedly connected to the tail end of the core tube 3, for driving the slider 33 to slide. The hose 41 is fixedly connected to the core tube 3 via a pipe clamp 46 .

[0016] When in use, first use the roller mechanism 2 to drive the tank body 1 to rotate. Then, insert the core tube 3, which is initially in a closed state with the rocker 31, from the preset flange opening 11 at one end of the tank body 1. After reaching the predetermined position, use the electric cylinder 34 to drive the slider 33 to move, drive the rocker 31 to expand, and after the nozzle 4 reaches the predetermined position, start the pickling supply device, and the nozzle 4 sprays the inner wall of the tank body 1. At the same time, the rotation of the tank body 1 gradually pickles the tank wall. Among them, the part of the core tube 3 located outside the tank body 1 can be lifted by equipment such as an overhead crane and inserted into the tank body 1. It can be seen that the angle of expansion of the rocker 31 is as follows Figure 2 As shown, when the angle is 90 degrees, the nozzle 4 pickles the inner wall of the circumference of the tank body 1. When the angle is acute, the inner wall of the end of the tank body 1 can be pickled. When the angle is obtuse, the conical surface on the other side of the tank body 1 can be pickled, thereby eliminating the pickling blind area and improving the pickling quality. At the same time, the pickling liquid remaining at the bottom of the tank body 1 can also be used for a second pickling of the tank body 1, so the amount of pickling liquid sprayed can be reduced, thereby reducing the amount of pickling liquid used and saving costs.

[0017] An exemplary hinged connection method of the connecting rod 32 and the slider 33 is as follows: a notch 35 is provided on the outer wall of the core tube 3 ; a hinge seat 36 fixedly connected to the slider 33 extends out of the core tube 3 from the notch 35 for hinged connection of the connecting rod 32 .

[0018] To improve spraying efficiency, multiple swing arms 31 are evenly distributed around the circumference of the core tube 3. Each swing arm 31 is connected to a corresponding connecting rod 32 and a spray head 4. Each spray head 4 is connected to a hose 41. All hoses 41 are connected to the pickling supply device. Multiple notches 35 are provided on the core tube 3, each corresponding to a hinged seat 36. Multiple spray heads 4 spray simultaneously, improving operational efficiency.

[0019] In an exemplary pickling liquid supply method, the pickling supply device includes a liquid storage tank 42 for storing the pickling liquid. A pressure pump 43 is connected to the liquid storage tank 42. The pressure pump 43 is connected to a manifold 45 via a connecting pipe 44. The end of the hose 41 is connected to the manifold 45. A control valve is provided on the connecting pipe 44 for easy control.

[0020] Preferably, the vehicle further comprises a vehicle body 5 with universal wheels 51 at the bottom, and the pickling supply device is mounted on the vehicle body 5; a support frame 52 is fixedly mounted on the vehicle body 5, and the upper end of the support frame 52 is fixedly connected to the rear end of the core tube 3. It can be seen that the core tube 3 and the pickling supply device are both mounted on the vehicle body 5, forming an independent working unit that can be flexibly moved and improved convenience.

[0021] In summary, in this embodiment, the pickling liquid can be poured into the tank body 1 in a spraying manner, thereby avoiding a pickling blind area, reducing the consumption of the pickling liquid, and improving the quality of pickling.

[0022] The parts not described in detail in this utility model are prior art. For those skilled in the art, the technical features of the above embodiments can be combined in any way. To keep the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A gas tank pickling spraying device, comprising a roller mechanism (2) supported on the bottom of a horizontal tank body (1) for driving the tank body (1) to rotate; characterized in that: It also includes a core tube (3) inserted from a preset flange opening (11) at one end of the tank body (1); a swing rod (31) is hingedly connected to the outer wall of the front end of the core tube (3); a connecting rod (32) is hingedly connected to the side of the swing rod (31); the other end of the connecting rod (32) is hingedly connected to a slider (33) preset in the core tube (3), and is used to drive the swing rod (31) to open or close when the slider (33) slides; The end of the swing rod (31) is fixedly connected to the nozzle (4), the tail of the nozzle (4) is connected to the hose (41), the middle part of the hose (41) is fixedly connected to the outer wall of the core tube (3), and the end thereof extends out of the tank body (1) and is connected to the pickling supply device for providing high-pressure pickling liquid to the nozzle (4); The slider (33) is fixedly connected to the end of the telescopic rod of the electric cylinder (34), and the electric cylinder (34) is fixedly connected to the tail end of the core tube (3) for driving the slider (33) to slide.

2. The gas tank pickling spray device according to claim 1, characterized in that: The outer wall of the core tube (3) is provided with a notch (35); a hinge seat (36) fixedly connected to the slider (33) extends out of the core tube (3) from the notch (35) and is used for hinged connection of the connecting rod (32).

3. The gas tank pickling spray device according to claim 2, characterized in that: There are a plurality of rocker arms (31) uniformly distributed around the circumference of the core tube (3); each rocker arm (31) is correspondingly connected to the connecting rod (32) and the nozzle (4); each nozzle (4) is connected to the hose (41); all the hoses (41) are connected to the pickling supply device; there are a plurality of notches (35) on the corresponding core tube (3), and each notch (35) corresponds to one of the hinge seats (36).

4. The gas tank pickling spray device according to claim 3, characterized in that: The pickling supply device comprises a liquid storage tank (42) for storing pickling liquid, the liquid storage tank (42) is connected to a pressure pump (43), and the pressure pump (43) is connected to a collection pipe (45) through a connecting pipe (44); the end of the hose (41) is connected to the collection pipe (45).

5. The gas tank pickling spraying device according to claim 4, characterized in that: It also includes a vehicle body (5) with a universal wheel (51) at the bottom, and the pickling supply device is installed on the vehicle body (5); a support frame (52) is fixedly provided on the vehicle body (5), and the upper end of the support frame (52) is fixedly connected to the tail of the core tube (3).

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