Method for heat tracing by recovering waste heat of oil-gas dehydrating and purifying device

A technology for recovery of oil and natural gas and waste heat, applied in gas/liquid distribution and storage, pipeline systems, mechanical equipment, etc., can solve problems such as damage, easy fire and explosion, aging, etc., and achieve the effect of preventing pipeline freezing

Inactive Publication Date: 2012-07-25
ANJI JIANGNAN REFRIGERATION ELECTRICAL APPLIANCE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are potential safety hazards, such as electric heating cables are affected by external na

Method used

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  • Method for heat tracing by recovering waste heat of oil-gas dehydrating and purifying device
  • Method for heat tracing by recovering waste heat of oil-gas dehydrating and purifying device

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in detail:

[0011] As shown in Figure 1, the waste heat recovery heat tracing method of the oil and gas dehydration and purification device of the present invention includes: heat tracing pipeline [1], temperature sensor [2], circulating water pump [3], stainless steel plate heat exchanger [4], electromagnetic Valve 1 [5], bypass solenoid valve [6], refrigeration compressor [7], refrigeration unit [8], condenser [9], differential pressure bypass valve [10], condensing pressure regulating valve [11], Solenoid valve 2 [12], water storage tank [13].

[0012] The heating pipe [1] is connected with the circulating water pump [3] and the stainless steel plate heat exchanger [4] and the water side is connected with the water storage tank [13] to form a water system, and the temperature sensor [2] is installed at the water outlet of the heating pipe [1] On the pipeline; s...

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Abstract

The invention relates to a method for preventing freezing of oil-gas pipelines in sewage discharge or carrying with much water in winter, which includes: recovering heat discharged from a vent of an air compressor in a refrigerating unit on an oil-gas dehydrating and heavy-hydrocarbon removing device by a stainless steel plate type heat exchanger, and heating circulating water in a heat tracing copper pipe to prevent freezing of the pipelines in winter by heat tracing. In the method for heat tracing by recovering the waste heat of the air compressor of the refrigerating unit, procedures and equipment are simple, additional refrigerating equipment is omitted, investment is low, energy is saved, consumption is reduced, and freezing prevention is effective. Besides, by the method, the problems of fires, explosion and the like caused by short circuit due to the fact that a heat tracing belt is aged and damaged in the conventional electric heat tracing manner can be effectively solved, and excellent freezing prevention effect is achieved.

Description

【Technical field】 [0001] The invention relates to a process method for heat tracing and anti-freezing protection of oil and gas gathering stations in oil fields or pipelines of oil and gas dehydration and deheavy hydrocarbon devices, which belongs to the oil and gas gathering and transportation treatment technology category. 【Background technique】 [0002] Oil and natural gas (referred to as petroleum gas) will produce moisture higher than the dew point temperature, whether untreated or treated. During the production process in winter, as the ambient temperature drops, water and light oil will naturally condense, which will easily cause freezing blockage of pipelines, equipment flameout or explosion safety accidents. In order to prevent accidents, electric heat tracing or other methods are still used to heat frozen pipelines in cold regions. Although the method has low investment, the method is simple. However, there are safety hazards, such as electric heating cables are ...

Claims

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Application Information

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IPC IPC(8): F17D1/18
Inventor 叶彦斌江习武沈永年
Owner ANJI JIANGNAN REFRIGERATION ELECTRICAL APPLIANCE
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