CN-115557116-B - Storage tank bottom plate structure

CN115557116BCN 115557116 BCN115557116 BCN 115557116BCN-115557116-B

Abstract

The invention provides a storage tank bottom plate structure which comprises an interlayer bottom plate, separation reinforcing ribs, reinforcing rib leakage monitoring assemblies and interlayer leakage monitoring assemblies, wherein the interlayer bottom plate is divided into a plurality of independent interlayer monitoring areas through the separation reinforcing ribs, the interlayer leakage monitoring assemblies are arranged in the interlayer monitoring areas, and the reinforcing rib leakage monitoring assemblies are arranged in the separation reinforcing ribs. The invention has the advantages of being capable of monitoring in a partitioned mode, simultaneously realizing the leakage monitoring of the reinforcing rib and the interlayer of the bottom plate, and the like.

Inventors

ZHEN YONGQIAN
CHENG QINGLI
ZHANG YUPING
YANG KE
GUAN XIAORUI
ZHOU RIFENG
DING LILI
ZHANG WEIHUA

Assignees

中国石油化工股份有限公司
中国石油化工股份有限公司青岛安全工程研究院

Dates

Publication Date: 20260505
Application Date: 20210702

Claims (7)

1. The storage tank bottom plate structure is characterized by comprising an interlayer bottom plate, separation reinforcing ribs, reinforcing rib leakage monitoring assemblies and interlayer leakage monitoring assemblies, wherein the interlayer bottom plate is divided into a plurality of independent interlayer monitoring areas through the separation reinforcing ribs, the interlayer leakage monitoring assemblies are installed in the interlayer monitoring areas, the reinforcing rib leakage monitoring assemblies are installed in the separation reinforcing ribs, the separation reinforcing ribs comprise reinforcing rib base plates and reinforcing rib cover plates, the reinforcing rib base plates are provided with monitoring grooves, the reinforcing rib cover plates are arranged above the monitoring grooves so as to form monitoring sealing spaces, the reinforcing rib leakage monitoring assemblies are arranged in the sealing monitoring spaces, the reinforcing rib leakage monitoring assemblies comprise conducting units, two monitoring wires which are respectively arranged on two side walls of the monitoring grooves, and a plurality of partition plates which are arranged along the length direction of the monitoring grooves, the monitoring sealing spaces are divided into a plurality of reinforcing rib monitoring areas through the partition plates, the reinforcing rib monitoring areas are respectively provided with a group of conducting units, the conducting units comprise monitoring resistors and conducting blocks, the conducting blocks are arranged in the middle part of the reinforcing rib base plates, the monitoring resistors are arranged in the monitoring grooves, and the conducting blocks are arranged in the monitoring grooves, and the monitoring conductors are connected with one another through the conducting wires so that the monitoring circuits can form a leakage circuit when the monitoring conductors are connected.
2. The storage tank bottom plate structure according to claim 1, wherein the middle part of the monitoring groove is provided with at least two groups of conductive block mounting grooves which are arranged along the length direction of the monitoring groove, and each group of conductive block mounting grooves is arranged side by side along the width direction of the monitoring groove.
3. The tank floor structure according to claim 1 or 2, wherein the sandwich leak monitoring assembly comprises a vacuum monitoring pipe mounted on an outer side wall of the partition reinforcing rib, the vacuum monitoring pipe being provided with through holes arranged in a length direction of the vacuum monitoring pipe, the through holes communicating with the sandwich monitoring area.
4. The tank floor structure of claim 3, wherein the outer side wall of the separation stiffener is an arcuate outer side wall, and the vacuum monitor tube is an arcuate vacuum tube adapted to the arcuate outer side wall.
5. The tank floor structure of claim 1 or 2, wherein the sandwich floor comprises a bottom layer, a base layer, a hollow sandwich layer and an impermeable surface layer which are sequentially stacked from bottom to top, the separation reinforcing ribs are positioned between the base layer and the impermeable surface layer, and the sandwich leak monitoring assembly is positioned in the hollow sandwich layer.
6. The tank floor structure of claim 5, wherein when the bottom layer has corrosion pits, a repair layer is laid in the corrosion pits.
7. The tank floor structure of claim 6, wherein the base of the base layer, the barrier layer and the repair layer are all resins, and the resins are epoxy resins, unsaturated polyester resins or vinyl resins.

Description

Storage tank bottom plate structure Technical Field The invention relates to the field of leakage prevention of the bottom of a storage tank, in particular to a bottom plate structure of the storage tank. Background The service life of the storage tank is usually more than thirty years, but the electrolytic corrosion and chemical corrosion of the bottom plate are caused by the deposited water of the bottom plate of the storage tank, so that the actual service life of the bottom plate of the storage tank is greatly different from the design life of the storage tank, and the corrosion perforation of the bottom plate of the storage tank can occur even five years. The steel tank bottom plate is replaced with huge engineering quantity, the operation is complicated, the potential safety hazard is large, and meanwhile, the corrosion problem can not be solved after the steel tank bottom plate is replaced. In order to solve the problem of poor corrosion resistance of the bottom plate of the storage tank, the prior bottom plate of the storage tank is usually made of unsaturated polyester resin, epoxy resin and other materials for corrosion resistance. However, the existing tank bottom plate is usually of a single-layer anti-corrosion structure, has no leakage monitoring function, and cannot determine whether leakage occurs in the tank bottom plate. Meanwhile, once the existing storage tank bottom plate leaks, the pollution of the whole storage tank bottom plate is caused, the lining of the whole storage tank bottom plate is required to be replaced, and the operation is complex and the cost is high. Disclosure of Invention The invention aims to solve the technical problem of overcoming the defects of the prior art and providing a storage tank bottom plate structure which can realize partition monitoring and can realize the monitoring of leakage of a reinforcing rib and a bottom plate interlayer at the same time. In order to solve the technical problems, the technical scheme provided by the invention is as follows: The utility model provides a storage tank bottom plate structure, includes intermediate layer bottom plate, separates the strengthening rib, strengthening rib leakage monitoring subassembly and intermediate layer leakage monitoring subassembly, the intermediate layer bottom plate passes through separate the strengthening rib and separate into a plurality of independent intermediate layer monitoring areas, the intermediate layer leakage monitoring subassembly install in each in the intermediate layer monitoring area, the strengthening rib leakage monitoring subassembly install in separate the strengthening rib. As a further improvement of the above technical scheme: the separation reinforcing rib comprises a reinforcing rib substrate and a reinforcing rib cover plate, wherein the reinforcing rib substrate is provided with a monitoring groove, the reinforcing rib cover plate is arranged above the monitoring groove to form a monitoring sealed space, and the reinforcing rib leakage monitoring assembly is arranged in the sealed monitoring space. The reinforcing rib leakage monitoring assembly comprises a conductive unit, two monitoring wires and a plurality of partition plates, wherein the two monitoring wires are respectively arranged on two side walls of the monitoring groove, the partition plates are arranged along the length direction of the monitoring groove, the monitoring sealing space is divided into a plurality of reinforcing rib monitoring areas through the partition plates, and each reinforcing rib monitoring area is provided with a group of conductive units. The conductive unit comprises monitoring resistors and conductive blocks, the conductive blocks are arranged in the middle of each group of the reinforcing rib monitoring areas, and the monitoring resistors are arranged on one group of the monitoring leads. The middle part of the monitoring groove is provided with at least two groups of conductive block mounting grooves which are arranged along the length direction of the monitoring groove, and each group of conductive block mounting grooves are arranged side by side along the width direction of the monitoring groove. The interlayer leakage monitoring assembly comprises a vacuum monitoring pipe, wherein the vacuum monitoring pipe is arranged on the outer side wall of the separation reinforcing rib, through holes are formed in the vacuum monitoring pipe and are arranged along the length direction of the vacuum monitoring pipe, and the through holes are communicated with the interlayer monitoring area. The outer side wall of the separation reinforcing rib is an arc-shaped outer side wall, and the vacuum monitoring tube is an arc-shaped vacuum tube matched with the arc-shaped outer side wall. The interlayer bottom plate comprises a bottom layer, a base layer, a hollow interlayer and an impermeable surface layer which are sequentially overlapped from bottom to top, the separation reinforcing ribs are