Tank field temperature maintaining and rising system

Abstract

The invention discloses a tank field temperature maintaining and rising system which comprises at least one storage tank, wherein the storage tank is connected with a material inlet pipeline and a material outlet pipeline respectively; a temperature maintaining pipeline is connected onto the material outlet pipeline; a heat exchanger is connected onto the temperature maintaining pipeline; part of material flows into the temperature maintaining pipeline via the material outlet pipeline and then flows into the material outlet pipeline via the temperature maintaining pipeline after heat exchange and temperature rise by the heat exchanger. According to the invention, the temperature maintaining pipeline and the heat exchanger arranged outside the storage tank can heat part of the material and mixes part of the material with the unheated material in the storage tank to further realize temperature maintenance and rise of the material in the storage tank and replace the original heating and temperature maintenance manner through steam; in addition, hot water (technological waste heat) is adopted to maintain the temperature of the storage tank and heat the storage tank, so that the steam use level is decreased, and the production cost and energy consumption are reduced; through filling a demulsifier, the material dehydration time is shortened, and the dehydration effect is improved; the heating manner outside the storage tank is adopted to reduce the maintenance cost when the existing heating coil in the storage tank leaks.

Description

technical field [0001] The invention relates to the technical field of tank farm temperature maintenance, in particular to a tank farm temperature maintenance and heating system. Background technique [0002] At present, for some materials with a high freezing point, when the external ambient temperature is lower than the temperature of the material in the storage tank, the material in the storage tank will continue to dissipate heat to the outside during the storage process. At this point, it will solidify, which will have a serious impact on the safety of material deployment and storage. Therefore, during material storage, it is necessary to add heat in time to maintain the material in the tank at a certain temperature to ensure the safety of material storage and transportation. [0003] At present, the temperature maintenance method of heating is usually used to maintain the temperature of the materials in the storage tanks in the tank farm. When the temperature is mainta...

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Problems solved by technology

[0002] At present, for some materials with a high freezing point, when the external ambient temperature is lower than the temperature of the material in the storage tank, the material in the storage tank will continue to dissipate heat to the outside during the storage process. At this time, it will seriously affect the safety of material deployment and storage. Therefore, during the storage of materials, it is necessary to add heat in time to keep the materials in the tank at a certain temperature, so as to ensure the safety of storage and transportation of materials.

[0003] At present, the temperature maintenance method of heating is usually used to maintain the temperature of the materials in the storage tanks in the tank farm. When the temperature is maintained and raised in the tank farm, coils or rapid heaters are usually used in the storage tanks, and the coils are fed into the coils. Steam is used for heating, but the use of steam for temperature maintenance and heating has relatively high energy consumption and cost

In actual production, there is also a method of changing steam into hot water for heating and temperature maintenance, but hot water can only maintain and raise the temperature of the tank area with a lower isothermal level of the material storage tank, and the heating speed is relatively slow. When the ambient temperature is low , sometimes can not meet the demand, need to switch back to steam heating

Moreover, if the above-mentioned heating method is used, there will be a problem of pipeline leakage. When the pipeline leaks, it needs to clean the tank for maintenance, and the cost of cleaning the tank will be very high.

[0004] There is another heating method that is used more, which is to install a heat exchanger at the inlet of the storage tank (mostly used in crude oil tank farms), and use hot water to heat up before the material enters the tank, reducing the temperature maintenance and heating of the storage tank. The amount of steam used, but this heating method requires the material to be continuously fed into the tank before it can be used. When the material is not continuously fed into the tank, this method will be limited in use

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