CN218674142U

CN218674142U - Airtight testing arrangement of storage tank edge seal

Info

Publication number: CN218674142U
Application number: CN202223403644.4U
Authority: CN
Inventors: 卢红伟; 卢雄伟; 卢建伟; 印炎; 黄勇
Original assignee: Shanhemei Changzhou Environmental Protection Technology Co ltd
Current assignee: Shanhemei Changzhou Environmental Protection Technology Co ltd
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-03-21
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a storage tank edge seal airtightness testing device, the one end of edge board is fixed with the one end of floating plate, and primary seal crawler shoe subassembly and secondary seal crawler shoe subassembly are fixed with the one end of edge board respectively, and primary seal crawler shoe subassembly and secondary seal crawler shoe subassembly cooperate with the internal face of jar body respectively, form the second cavity at edge board and floating plate, primary seal crawler shoe subassembly and jar body, be equipped with first through-hole on the edge board, the one end of first pipeline cooperates and seals with first through-hole, is equipped with public interface on the first pipeline; one end of the second pipeline is connected with the public interface; the first pressure gauge is matched with the second pipeline; the inflator pump is connected with the second pipeline. The utility model discloses an aerify and detect atmospheric pressure to judge whether qualified with the seal structure of the sealed crawler shoe subassembly of primary seal and the sealed crawler shoe subassembly of secondary formation of jar body.

Description

Airtight testing arrangement of storage tank edge seal

Technical Field

The utility model relates to a storage tank oil-gas seal technical field, concretely relates to airtight testing arrangement of storage tank edge seal.

Background

As shown in fig. 1, the sealing structure for the tank body and the floating plate of the oil storage tank comprises a tank body 1, a floating plate 2, a primary sealing slipper assembly 3, a secondary sealing slipper assembly 4 and an edge plate 5, wherein one end of the edge plate 5 is fixed with one end of the floating plate 2, the primary sealing slipper assembly 3 and the secondary sealing slipper assembly 4 are respectively fixed with one end of the edge plate 5, and the primary sealing slipper assembly 3 and the secondary sealing slipper assembly 4 are respectively matched with the inner wall surface of the tank body 1.

Because an annular cavity 6 is formed between the primary sealing sliding shoe component 3, the secondary sealing sliding shoe component 4 and the inner wall of the tank body 1, oil gas is volatilized, and the oil gas is concentrated to form pressure on the primary sealing sliding shoe component 3, so that the high-elasticity primary sealing sliding shoe component 3 is enabled to be attached to the inner wall of the tank body 1, and a better peripheral sealing effect is formed.

However, if the primary seal shoe assembly 3 and/or the secondary seal shoe assembly 4 and the inner wall of the tank body 1 are not sealed tightly or fail due to the gap between the primary seal shoe assembly 3 and/or the secondary seal shoe assembly 4 and the inner wall of the tank body 1, oil gas enters the annular cavity 6 through the gap between the oil gas primary seal shoe assembly 3 and the tank body 1, and escapes to the upper side of the floating disc 2 from the gap between the secondary seal shoe assembly 4 and the tank body 1, and oil loss is caused along with continuous escape of the oil gas. Therefore, before injecting oil into a product, it is necessary to detect the sealing performance between the primary sealing shoe assembly 3 and the secondary sealing shoe assembly 4 and the tank body 1, but no corresponding detection device is available to detect the sealing structure at present.

SUMMERY OF THE UTILITY MODEL

The utility model provides an airtight testing arrangement of storage tank edge seal, the utility model discloses an aerify and detect atmospheric pressure to judge whether qualified with the seal structure of the sealed crawler shoe subassembly of primary seal and the sealed crawler shoe subassembly of secondary formation of the jar body.

The technical scheme for realizing the purpose is as follows:

airtight testing arrangement of storage tank edge seal, including a jar body, the floating plate, the sealed crawler shoe subassembly of once, the sealed crawler shoe subassembly of secondary, the edge board, the one end of edge board is fixed with the one end of floating plate, the sealed crawler shoe subassembly of once and the sealed crawler shoe subassembly of secondary are fixed with the one end of edge board respectively, the sealed crawler shoe subassembly of once and the sealed crawler shoe subassembly of secondary cooperate with the internal face of jar body respectively, at edge board and floating plate, the sealed crawler shoe subassembly of once and jar body formation second cavity, still include:

the edge plate is provided with a first through hole, one end of the first pipeline is matched and sealed with the first through hole, and the first pipeline is provided with a common interface;

one end of the second pipeline is connected with the public interface;

the first pressure gauge is matched with the second pipeline;

and the inflator pump is connected with the second pipeline.

Further, still include first valve, first valve and second pipe connection, first valve is located between first manometer and the pump.

The edge plate is connected with the first pipeline, the public interface is positioned between the edge plate and the second valve, and when the first pipeline is separated from the public interface, the second pressure gauge is connected with the public interface.

Further, still include automatic relief valve, automatic relief valve is connected with first pipeline, second valve is located between public interface and the automatic relief valve.

Adopt the utility model discloses a step that airtight testing arrangement of storage tank edge seal carries out airtight test as follows:

and (5) performing water filling floating test on the floating plate. When the floating height of the floating plate reaches the required height, a tester enters through a high manhole arranged on the tank body, and the tester stands on the floating plate. And connecting a second pipeline with the public interface, matching the first pressure gauge with the second pipeline, and connecting the inflator pump with the second pipeline. And starting the inflator pump, enabling the air output by the inflator pump to sequentially pass through the second pipeline, the common interface and the first pipeline to reach the second cavity, continuously filling air into the second cavity, when the pressure value of the first pressure gauge is NPa (when the pressure value is NPa, stopping filling air, standing for 30 minutes, checking whether the gauge reading of the first pressure gauge is greater than or equal to MPa, if the reading of the first pressure gauge is greater than or equal to M, indicating that the sealing structure formed by the matching of the primary sealing slipper assembly and the secondary sealing slipper assembly with the inner wall surface of the tank body is qualified, and recording an actual numerical value, and if the reading of the first pressure gauge is less than M, indicating that the sealing structure formed by the matching of the primary sealing slipper assembly and the secondary sealing slipper assembly with the inner wall surface of the tank body 1 is unqualified, requiring an installer to readjust and fasten the peripheral seal of the floating disc, and performing an air tightness test by repeating the scheme until the sealing structure is qualified.

Drawings

FIG. 1 is a schematic view of a sealing structure of a tank and a floating plate in the prior art;

fig. 2 is a schematic diagram of the storage tank edge sealing airtightness testing apparatus of the present invention.

Fig. 3 is an enlarged view of a portion P in fig. 2.

Labels in fig. 1 to 3:

the device comprises a tank body 1, a floating disc 2, a primary sealing slipper assembly 3, a secondary sealing slipper assembly 4, an edge plate 5, an annular cavity 6, a second cavity 7, a first pipeline 8, a sealing ring 8a, a clamping nut 8b, a common interface 9, a second pipeline 10, a first pressure gauge 11, an inflator pump 12, a first valve 13, a second valve 14, a second pressure gauge 15 and a movable pressure release valve 16.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

As shown in fig. 2 to 3, the utility model discloses an airtight testing arrangement of storage tank edge seal, including a jar body 1, floating plate 2, primary seal crawler shoe subassembly 3, secondary seal crawler shoe subassembly 4, edge plate 5, the one end of edge plate 5 is fixed with the one end of floating plate 2, primary seal crawler shoe subassembly 3 and secondary seal crawler shoe subassembly 4 are fixed with the one end of edge plate 5 respectively, primary seal crawler shoe subassembly 3 and secondary seal crawler shoe subassembly 4 respectively with the internal face cooperation of jar body 1, at edge plate 5 and floating plate 2, primary seal crawler shoe subassembly 3 and jar body 1 formation second cavity 7.

Still include first pipeline 8, second pipeline 10, first manometer 11, inflator 12, be equipped with first through-hole on the board 5 of edge, the one end and the first through-hole cooperation and sealed of first pipeline 8, in this embodiment, the one end of first pipeline 8 is equipped with the screw thread, still be equipped with the ring channel on the global of first pipeline 8, install sealing washer 8a in the ring channel, after first pipeline 8 passed the first through-hole on the board 5 of edge, adopt clamp nut 8b and the 8 threaded connection of first pipeline, all be connected with clamp nut 8b in the inboard and the outside of board 5 of edge, thereby first pipeline 8 is pressed from both sides tightly on board 5 of edge, and sealing washer 8a is compressed tightly between clamp nut with board 5 of edge, thereby form sealedly to the clearance between first pipeline 8 and the board 5 of edge.

A common interface 9 is arranged on the first pipeline 8, one end of the second pipeline 10 is connected with the common interface 9, a first pressure gauge 11 is matched with the second pipeline 10, and an inflator 12 is connected with the second pipeline 10.

s1, performing water filling floating test on the floating plate 2.

S2, when the floating height of the floating plate 2 reaches the required height, for example, the floating height of the floating plate 2 is 200mm, a tester enters through a high manhole arranged on the tank body 1, and the tester stands on the floating plate 2.

And S3, connecting the second pipeline 10 with the common interface 9, matching the first pressure gauge 11 with the second pipeline 10, and connecting the inflator 12 with the second pipeline 10.

S4, starting the inflator pump 12, enabling air output by the inflator pump 12 to sequentially pass through the second pipeline 10, the common interface 9 and the first pipeline 8 to reach the second cavity 7, continuously inflating the air into the second cavity 7, stopping inflating when the pressure value of the first pressure gauge 11 is NPa (the value of N is 350 in priority), standing for 30 minutes, checking whether the meter reading of the first pressure gauge 11 is larger than or equal to MPa, and if the reading of the first pressure gauge 11 is larger than or equal to M, indicating that the sealing structure formed by the matching of the primary sealing slipper assembly 3 and the secondary sealing slipper assembly 4 with the inner wall surface of the tank body 1 is qualified, and recording an actual numerical value.

If the reading of the first pressure gauge 11 is less than M, the sealing structure formed by the matching of the primary sealing sliding shoe assembly 3 and the secondary sealing sliding shoe assembly 4 with the inner wall surface of the tank body 1 is unqualified, an installer is required to readjust and fasten the peripheral seal of the floating disc, and the scheme is repeated to perform airtight test until the scheme is qualified.

Preferably, the inflator further comprises a first valve 13, the first valve 13 is connected to the second pipe 10, and the first valve 13 is located between the first pressure gauge 11 and the inflator 2. When the pressure value of the first pressure gauge 11 is shown as NPa, the inflation is stopped at this time, and before the inflation is stopped, the first valve 13 is closed to prevent reverse flow of air to the inflator 12, thereby ensuring authenticity of the reading of the first pressure gauge 11.

Preferably, the device further comprises a second valve 14 and a second pressure gauge 15, wherein the second valve 14 is connected with the first pipeline 8, the common interface 9 is positioned between the edge plate 5 and the second valve 14, and after the first pipeline 8 is separated from the common interface 9, the second pressure gauge 15 is connected with the common interface 9.

Since the first duct 8 needs to be connected to the common interface 9 for the airtightness test, the second valve 14 is closed to allow air to flow to the second chamber 7 during the airtightness test. After the airtight test is finished, the first pipeline 8 and the common interface 9 need to be separated, and in order to observe the air pressure (air pressure formed by volatilized oil gas) condition in the second cavity 7 at any time, the second pressure gauge 15 and the common interface 9 are arranged.

Preferably, an automatic pressure relief valve 16 is further included, the automatic pressure relief valve 16 being connected to the first conduit 8, the second valve 14 being located between the common interface 9 and the automatic pressure relief valve 16. After the airtight test is finished, because the second pressure gauge 15 is connected with the common interface 9, the second valve 14 is opened, the pressure of the automatic pressure relief valve 16 is set, and when the air pressure in the second cavity 7 is smaller than the pressure of the automatic pressure relief valve 16, the oil gas in the second cavity 7 is kept below the floating disc 2. When the air pressure in the second cavity 7 is greater than the pressure of the automatic pressure release valve 16, the oil gas in the second cavity 7 is discharged out of the upper part of the floating disc 2 through the first pipeline 8 and the automatic pressure release valve 16, so as to avoid accidents.

Finally, it should be noted that: the above embodiments are only preferred embodiments of the present invention to illustrate the technical solution of the present invention, not to limit it, and not to limit the protection scope of the present invention; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims

1. Airtight testing arrangement of storage tank edge seal, including a jar body (1), floating plate (2), primary seal crawler shoe subassembly (3), secondary seal crawler shoe subassembly (4), edge plate (5), the one end of edge plate (5) is fixed with the one end of floating plate (2), primary seal crawler shoe subassembly (3) and secondary seal crawler shoe subassembly (4) are fixed with the one end of edge plate (5) respectively, primary seal crawler shoe subassembly (3) and secondary seal crawler shoe subassembly (4) respectively with the internal face cooperation of a jar body (1), at edge plate (5) and floating plate (2), primary seal crawler shoe subassembly (3) and jar body (1) form second cavity (7), a serial communication port, still include:

the edge plate (5) is provided with a first through hole, one end of the first pipeline is matched and sealed with the first through hole, and the first pipeline (8) is provided with a common interface (9);

a second pipeline (10), wherein one end of the second pipeline (10) is connected with the common interface (9);

the first pressure gauge (11), the first pressure gauge (11) is matched with the second pipeline (10);

the inflator pump (12), the inflator pump (12) is connected with the second pipeline (10).

2. The tank rim seal airtightness testing apparatus according to claim 1, further comprising a first valve (13), wherein the first valve (13) is connected to the second pipe (10), and the first valve (13) is located between the first pressure gauge (11) and the inflator (12).

3. The tank rim seal airtightness testing apparatus according to claim 1, further comprising a second valve (14), and a second pressure gauge (15), wherein the second valve (14) is connected to the first pipe (8), the common port (9) is located between the rim plate (5) and the second valve (14), and when the first pipe (8) is separated from the common port (9), the second pressure gauge (15) is connected to the common port (9).

4. The tank rim seal airtightness testing apparatus according to claim 3, further comprising an automatic pressure relief valve (16), wherein the automatic pressure relief valve (16) is connected to the first pipe (8), and the second valve (14) is located between the common interface (9) and the automatic pressure relief valve (16).