CN215573646U

CN215573646U - Adjustable welding seam detection device for low-temperature liquid storage tank

Info

Publication number: CN215573646U
Application number: CN202122425958.3U
Authority: CN
Inventors: 周炳海; 唐潇南; 申德刚
Original assignee: Dalian Dongjian Wind Power Equipment Manufacturing Co ltd
Current assignee: Dalian Dongjian Wind Power Equipment Manufacturing Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-01-18
Anticipated expiration: 2031-10-09

Abstract

The utility model discloses an adjustable weld joint detection device for a low-temperature liquid storage tank, which belongs to the technical field of weld joint detection and comprises a plastic strip, wherein a sliding groove is formed in the inner wall of the plastic strip, a binding belt is connected in the sliding groove in a sliding mode, one end of the binding belt is fixedly connected with the right side face of a winding box, and the inner wall of the winding box is fixedly connected with the surface of a clamping plate. This welding seam detection device with adjustable low temperature liquid storage tank is used, through setting up the plastic strip, the spout, the hose, interface and seal box, make its inside constant pressure that keeps, gas pressure does not have the change in a period and can accomplish the detection, when leaking gas appears, pressure variation, immediately through closing the valve that corresponds interface between the spacer block, make it carry out regional detection investigation can, this kind of mode can be very fast carry out the directness to its leakproofness and detect, investigation location gas leakage position that simultaneously can be quick, it is more accurate to gas leakage position detection in the messenger's use.

Description

Adjustable welding seam detection device for low-temperature liquid storage tank

Technical Field

The utility model belongs to the technical field of weld joint detection, and particularly relates to an adjustable weld joint detection device for a low-temperature liquid storage tank.

Background

The structure and the type of the cryogenic liquid storage tank and the cryogenic liquid storage tank are that in recent years, the cryogenic liquid market is on red fire day by day, and the sales of liquid oxygen, liquid argon, liquid nitrogen, liquid carbon dioxide and LNG natural gas are greatly increased, so that the byproduct of the oxygen generator is very profitable and becomes an important part of the non-steel product income of steel enterprises. The production, storage and transportation of low-temperature liquid cannot be separated from heat insulation and preservation storage tanks which are installed in large quantities, wherein the heat insulation and preservation storage tanks are divided into a vacuum powder heat insulation type and an atmospheric pressure powder heat insulation type, the powder heat insulation type utilizes powder, fibers or foam materials with low heat conductivity to reduce heat transfer. The method is divided into two forms: one is to apply the ordinary powder thermal insulation under the atmospheric pressure, the thermal insulation layer is thicker, and fill in the dry nitrogen to maintain the positive pressure, in order to prevent the moisture from entering and condensing, the minimum time is suitable for the liquid nitrogen temperature above; another kind of vacuum powder is adiabatic, the space to fill the powder is the evacuation promptly, gas heat transfer has been reduced, powder granule also weakens radiation heat transfer simultaneously, makes adiabatic effect better, wherein present cryogenic liquids storage tank is in the in-process of production, and it adopts a plurality of circular outer wall welded modes to assemble shaping because comparatively huge volume, however present cryogenic liquids storage tank is mostly great for the volume, and the welding seam is even also to cover on the surface, in case appear the problem of leakproofness in the welding process, is difficult to carry out effectual investigation and detection.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the utility model provides an adjustable weld joint detection device for a cryogenic liquid storage tank, which solves the problems that the existing cryogenic liquid storage tank is assembled and molded in a mode of welding a plurality of circular outer walls due to larger volume in the production process, however, the existing cryogenic storage tank is mostly large in volume, weld joints are uniformly covered on the surface, and effective investigation and detection are difficult once the problem of tightness occurs in the welding process.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: an adjustable welding seam detection device for a low-temperature liquid storage tank comprises a plastic strip, wherein a sliding groove is formed in the inner wall of the plastic strip, a binding belt is connected in the sliding groove in a sliding mode, one end of the binding belt is fixedly connected with the right side face of a winding box, the inner wall of the winding box is fixedly connected with the surface of a clamping plate, the upper surface of the clamping plate is movably connected with the surface of an upper toothed plate through a bearing, the upper surface of the upper toothed plate is fixedly connected with the lower surface of a winding roller, the top end of the winding roller is fixedly connected with the bottom end of a rotating shaft, the surface of the winding roller is fixedly connected with the other end of the binding belt, the lower surface of the upper toothed plate is meshed with the upper surface of a lower toothed plate, the lower surface of the lower toothed plate is fixedly connected with the top end of a pull rod, the pull rod is connected in a through hole formed in the lower surface of the inner wall of the winding box in a sliding mode, and the lower surface of the lower toothed plate is fixedly connected with the top end of a spring, the bottom of spring and the lower fixed surface of rolling box inner wall are connected, the inner wall fixedly connected with gas storehouse of plastic strip, the upper surface joint of gas storehouse inner wall has a plurality of interface, and the surface of a plurality of interface all is connected with the hose, and the top of a plurality of hose is linked together with the inner wall of same seal box.

As a further scheme of the utility model: the bottom of pull rod and the upper surface fixed connection of carousel, the top of pivot is provided with the rectangular block.

As a further scheme of the utility model: the surface of the interface is provided with a valve, and the upper surface of the sealing box is provided with an air suction opening.

As a further scheme of the utility model: the inner wall fixedly connected with of gas storehouse is sealed to fill up, sealed the pad all is provided with a plurality of spacer block with the inner wall of gas storehouse.

As a further scheme of the utility model: the tooth of going up the pinion rack and pinion rack opposite face sets up to skewed tooth form, the pull rod is all the rectangle with the through-hole that box body inner wall lower surface set up.

(III) advantageous effects

Compared with the prior art, the utility model has the beneficial effects that:

1. the adjustable welding seam detection device for the low-temperature liquid storage tank is characterized in that a plastic strip, a sliding groove, a binding belt, a winding box, partition blocks, a sealing gasket, a gas bin, a hose, a connector and a sealing box are arranged, when the adjustable welding seam detection device is used, the binding belt slides in the sliding groove when tightened along with the winding box in the process of winding the binding belt, the plastic strip is tightly pressed, the sealing gasket is tightly attached to the surface of a tank body through the gas bin, the gas bin is attached to the surface of the tank body under the action of the sealing gasket and then is kept in a sealing state, the welding seam of a covered part of the gas bin is located in the gas bin, gas in the sealing box is pumped out under the action of a gas pump, the sealing box pumps out the gas in a space partitioned among the partition blocks, the gas in the sealing box is kept at a constant pressure, the detection can be completed without change of the gas pressure within a period of time, when gas leakage occurs, the pressure changes, and a valve corresponding to the connector between the partition blocks is immediately closed, make it carry on regional detection investigation can, this kind of mode can be very fast carry out the directness to its leakproofness and detect, investigation location gas leakage position that simultaneously can be quick makes in its use more accurate to gas leakage position detection.

2. The adjustable welding seam detection device for the low-temperature liquid storage tank is characterized in that a winding box, a winding roller, a rotating shaft, an upper toothed plate, a lower toothed plate, a pull rod, a spring, a binding band and a sliding sleeve are arranged, in the winding process after the detection position is determined, the rotating shaft is rotated to drive the winding roller to rotate in the rotating process, the binding band is uniformly wound on the surface when the winding roller rotates, the winding roller drives the upper toothed plate at the bottom end to synchronously start to rotate a rod, when the upper toothed plate rotates, the lower toothed plate is kept in a continuous meshing state with the lower surface of the upper toothed plate under the action of the spring, the upper toothed plate is kept to rotate in a single direction under the action of inclined teeth, immediately after the use is finished, a worker holds the pull rod to move the pull rod downwards, presses the spring by the lower toothed plate, immediately separates the upper toothed plate from the lower toothed plate, and then the winding roller can be separated from the binding band, the mode can facilitate the quick fixation and quick release of the device, so that the device is more convenient to use.

3. This welding seam detection device with adjustable cryogenic liquids storage tank is with setting up spacer block, sealed pad and gas storehouse, when using, a plurality of spacer blocks that gas storehouse and sealed pad set up can keep the inner space to carry out fine wall effect, make its different positions that can be convenient for when using carry out quick location to the welding seam.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic three-dimensional sectional structure of the winding box of the present invention;

FIG. 3 is a schematic three-dimensional cross-sectional structure of the plastic strip of the present invention;

in the figure: 1 plastic strip, 2 chutes, 3 binding bands, 4 coiling boxes, 5 clamping plates, 6 coiling rollers, 7 rotating shafts, 8 upper toothed plates, 9 lower toothed plates, 10 springs, 11 pull rods, 12 rotating discs, 13 sliding sleeves, 14 air bins, 15 sealing gaskets, 16 partition blocks, 17 connectors, 18 hoses and 19 sealing boxes.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1-3, the present invention provides a technical solution: an adjustable welding seam detection device for a low-temperature liquid storage tank comprises a plastic strip 1, wherein a sliding groove 2 is formed in the inner wall of the plastic strip 1, a binding belt 3 is connected in the sliding groove 2 in a sliding mode, one end of the binding belt 3 is fixedly connected with the right side face of a winding box 4, the inner wall of the winding box 4 is fixedly connected with the surface of a clamping plate 5, the upper surface of the clamping plate 5 is movably connected with the surface of an upper toothed plate 8 through a bearing, the upper surface of the upper toothed plate 8 is fixedly connected with the lower surface of a winding roller 6, the top end of the winding roller 6 is fixedly connected with the bottom end of a rotating shaft 7, the surface of the winding roller 6 is fixedly connected with the other end of the binding belt 3, the lower surface of the upper toothed plate 8 is meshed with the upper surface of a lower toothed plate 9, the lower surface of the lower toothed plate 9 is fixedly connected with the top end of a pull rod 11, the pull rod 11 is slidably connected in a through hole formed in the lower surface of the inner wall of the winding box 4, the lower toothed plate 9 is fixedly connected with the top end of a spring 10, the bottom of spring 10 and the lower fixed surface of 4 inner walls of rolling boxes are connected, the inner wall fixedly connected with gas storehouse 14 of plastic strip 1, the upper surface joint of 14 inner walls of gas storehouse has a plurality of interface 17, the surface of a plurality of interface 17 all is connected with hose 18, the top of a plurality of hose 18 is linked together with the inner wall of same seal box 19.

Specifically, as shown in fig. 1 and 3, the surface of the interface 17 is provided with a valve, the upper surface of the sealing box 19 is provided with an air suction port, the inner wall of the air chamber 14 is fixedly connected with a sealing gasket 15, the sealing gasket 15 and the inner wall of the air chamber 14 are both provided with a plurality of spacer blocks 16, through the arrangement of the valve, the valve can keep a good closing state in the detection process of different areas in the use process, and through the arrangement of the spacer blocks 16, the spacer blocks 16 can keep a stable uniform space partition effect.

Specifically, as shown in fig. 2, the bottom of pull rod 11 is connected with the last fixed surface of carousel 12, the top of pivot 7 is provided with the rectangular block, go up the tooth of pinion rack 8 and pinion rack 9 opposite face and specifically set up to oblique cusp, pull rod 11 is and all is the rectangle with the through-hole that box body inner wall lower surface set up, through setting up pull rod 11, pull rod 11 can keep good pulling effect when using, be the rectangle form with the through-hole simultaneously, make its in-process that uses can keep good location effect, prevent to appear pivoted condition with pinion rack 9 is synchronous down, through setting up pinion rack 8, go up the skewed tooth that pinion rack 8 and pinion rack 9 set up down, make it can keep good unidirectional rotation effect, keep the stability of its function.

The working principle of the utility model is as follows:

s1, when the winding device is used, in the winding process after the detection position is determined, the rotating shaft 7 is rotated, the winding roller 6 is driven to rotate in the rotating process of the rotating shaft 7, meanwhile, the winding roller 6 uniformly winds the binding band 3 to the surface when rotating, meanwhile, the winding roller 6 drives the upper toothed plate 8 at the bottom end to synchronously start rotating the rod, when the upper toothed plate 8 rotates, the lower toothed plate 9 is kept in a continuous meshing state with the lower surface of the upper toothed plate 8 under the action of the spring 10, and meanwhile, the upper toothed plate 8 is kept to rotate in a single direction under the action of the inclined teeth;

s2, immediately after the use, the worker holds the pull rod 11, and in the process of moving the pull rod 11 downward, presses the spring 10 on the lower toothed plate 9, and then separates the upper toothed plate 8 from the lower toothed plate 9, and then separates the wind-up roll 6 from the band 3, and in the process of winding the band 3 by the winding box 4, the band 3 slides in the chute 2 when being tightened, so as to keep tightly pressing the plastic strip 1, and the plastic strip 1 tightly attaches the sealing gasket 15 to the surface of the tank body through the air chamber 14;

s3, the gas cabin 14 is adhered to the surface of the can body under the action of the sealing gasket 15 and then keeps a sealing state, the welding seam covered by the gas cabin is positioned in the gas cabin 14, the gas in the sealing box 19 is pumped out under the action of the air pump, the sealing box 19 pumps out the gas in the space partitioned by the plurality of partition blocks 16, the internal pressure of the space is kept constant, the detection can be completed without change of the gas pressure within a period of time, when gas leakage occurs, the pressure changes, and then the valve of the interface 17 between the corresponding partition blocks 16 is closed, so that the area detection and the examination can be carried out.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides a welding seam detection device with adjustable cryogenic liquids storage tank is used, includes plastic strip (1), its characterized in that: the inner wall of the plastic strip (1) is provided with a sliding groove (2), a binding band (3) is connected in the sliding groove (2), one end of the binding band (3) is fixedly connected with the right side surface of the coiling box (4), the inner wall of the coiling box (4) is fixedly connected with the surface of a clamping plate (5), the upper surface of the clamping plate (5) is movably connected with the surface of an upper toothed plate (8) through a bearing, the upper surface of the upper toothed plate (8) is fixedly connected with the lower surface of a coiling roller (6), the top end of the coiling roller (6) is fixedly connected with the bottom end of a rotating shaft (7), the surface of the coiling roller (6) is fixedly connected with the other end of the binding band (3), the lower surface of the upper toothed plate (8) is meshed with the upper surface of a lower toothed plate (9), the lower surface of the lower toothed plate (9) is fixedly connected with the top end of a pull rod (11), and the pull rod (11) is connected in a through hole formed in the lower surface of the inner wall of the coiling box (4) in a sliding manner, the lower surface of lower pinion rack (9) and the top fixed connection of spring (10), the bottom of spring (10) and the lower fixed surface connection of rolling up box (4) inner wall, the inner wall fixedly connected with gas storehouse (14) of plastic strip (1), the upper surface joint of gas storehouse (14) inner wall has a plurality of interface (17), and the surface of a plurality of interface (17) all is connected with hose (18), and the top of a plurality of hose (18) is linked together with the inner wall of same seal box (19).

2. The adjustable welding line detection device for the cryogenic liquid storage tank according to claim 1, wherein: the bottom end of the pull rod (11) is fixedly connected with the upper surface of the rotary table (12), and a rectangular block is arranged at the top end of the rotary shaft (7).

3. The adjustable welding line detection device for the cryogenic liquid storage tank according to claim 1, wherein: the surface of the interface (17) is provided with a valve, and the upper surface of the sealing box (19) is provided with an air suction opening.

4. The adjustable welding line detection device for the cryogenic liquid storage tank according to claim 1, wherein: the inner wall fixedly connected with of gas storehouse (14) seals up (15), the inner wall that seals up (15) and gas storehouse (14) all is provided with a plurality of spacer block (16).

5. The adjustable welding line detection device for the cryogenic liquid storage tank according to claim 1, wherein: go up pinion rack (8) and pinion rack (9) opposite face's tooth utensil body sets up to oblique cusp, pull rod (11) are all the rectangle with the through-hole that box body inner wall lower surface set up.