Safety Technology Exchange Edition: Daily Question (2016.5.22)
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bg10.png Type: Short-answer question Question: [Fire Safety Technology] What are the advantages of using hoses for the oil inlet and outlet pipelines near oil tanks? Experience from past earthquake sites shows that breaks in the fixed-roof oil tanks are extremely rare; since the vibration frequencies of the tank and the pipelines differ, breaks usually occur in the inlet and outlet pipelines near the tank. Therefore, replacing those pipelines with flexible hoses can reduce the occurrence of such breaks. Furthermore, this approach is also used for oil tanks built on soft soil foundations. If tanks are built in coastal areas with poor soil stability, when the newly constructed oil tanks come into use, the sudden increase in load will cause significant settlement of those tanks; using hoses can serve as a buffer to compensate for this effect. However, the material of the hose and the sealing of the joints need to be properly handled to prevent oil leakage.
Taking into account the effect of tank foundation settlement, the use of hoses allows for adaptation to certain settlement displacements
Experience from past earthquake sites shows that breaks in the fixed-roof oil tanks are extremely rare; since the vibration frequencies of the tank and the pipelines differ, breaks usually occur in the inlet and outlet pipelines near the tank. Therefore, replacing those pipelines with flexible hoses can reduce the occurrence of such breaks. Furthermore, this approach is also used for oil tanks built on soft soil foundations. If tanks are built in coastal areas with poor soil stability, when the newly constructed oil tanks come into use, the sudden increase in load will cause significant settlement of those tanks; using hoses can serve as a buffer to compensate for this effect. However, the material of the hose and the sealing of the joints need to be properly handled to prevent oil leakage.
Prevent pipeline damage when tank settlement occurs
#Based on past earthquake incidents, it has been found that breaks in the fixed-roof oil storage tanks are extremely rare. Since the vibration frequencies of the tanks and the pipelines differ, breaks usually occur in the inlet and outlet pipelines near the tanks; therefore, replacing those pipelines with flexible hoses can reduce such breaks. Furthermore, this approach is also used for oil tanks built on soft soil foundations. If tanks are built in coastal areas with poor soil stability, when the newly constructed oil tanks come into use, the sudden increase in load will cause significant settlement of those tanks; using hoses can serve as a buffer to compensate for this effect. However, the material of the hose and the sealing of the joints need to be properly handled to prevent oil leakage. Reply#
In past earthquake scenes, it was found that ruptures in the tanks with fixed roofs were extremely rare. Since the vibration frequencies of the tank body and the pipelines differ, breaks usually occur in the inlet and outlet pipelines near the tank body. Therefore, replacing these pipelines with flexible hoses can reduce the occurrence of such breaks. This approach is also suitable for oil tanks built on soft soil foundations; for example, in coastal areas where the soil strength is low. When a newly built oil tank comes into use, the sudden increase in load can cause significant settlement of the tank. Using flexible hoses can serve as a buffer to compensate for this effect. However, it is necessary to pay proper attention to the material of the hoses and the sealing of their connections to prevent oil leaks
Experience from past earthquake sites shows that breaks in the tanks with fixed roofs are extremely rare; due to the different vibration frequencies of the tanks and pipelines, breaks usually occur in the inlet and outlet pipelines near the tank. Therefore, replacing these pipelines with flexible hoses can reduce the occurrence of such breaks. Furthermore, this approach is also applicable to oil tanks built on soft soil foundations. If tanks are built in coastal areas with poor soil stability, once the newly constructed oil tanks come into use, the sudden increase in load will cause significant settlement of these tanks; using hoses can serve as a means to provide cushioning and compensation for this effect. However, the material of the hose and the sealing of the joints need to be properly handled to prevent oil leakage.
Since vibrations are likely to occur between the tank and the pipelines, hoses are used to prevent the pipelines from breaking
Experience from past earthquake sites shows that breaks in the fixed-roof oil tanks are extremely rare; since the vibration frequencies of the tank and the pipelines differ, breaks usually occur in the inlet and outlet pipelines near the tank. Therefore, replacing these pipelines with flexible hoses can reduce the occurrence of such breaks. Furthermore, this approach is also used for oil tanks built on soft soil foundations. If tanks are built in coastal areas with poor soil stability, when the newly constructed oil tanks come into use, the sudden increase in load will cause significant settlement of those tanks; using hoses can serve as a buffer to compensate for this effect. However, the material of the hose and the sealing of the joints need to be properly handled to prevent oil leakage.
Experience from past earthquake sites shows that breaks in the fixed-roof oil tanks are extremely rare; since the vibration frequencies of the tank and the pipelines differ, breaks usually occur in the inlet and outlet pipelines near the tank. Therefore, replacing those pipelines with flexible hoses can reduce the occurrence of such breaks. Furthermore, this approach is also used for oil tanks built on soft soil foundations. If tanks are built in coastal areas with poor soil stability, when the newly constructed oil tanks come into use, the sudden increase in load will cause significant settlement of those tanks; using hoses can serve as a buffer to compensate for this effect. However, the material of the hose and the sealing of the joints need to be properly handled to prevent oil leakage.
When the constructed oil tank is put into use, a sudden increase in load causes significant settlement of the tank; the use of hoses can provide cushioning and compensation to prevent pipeline rupture and resulting accidents.