Wet method desulfurization outdoor comprehensive pipe rack and pipeline anti-freezing device and method
A wet desulfurization and anti-freezing device technology, applied in the direction of pipeline heating/cooling, pipes/pipe joints/fittings, mechanical equipment, etc., can solve the problems of pipeline freezing, inconvenient maintenance and large maintenance, etc. The effect of freezing and easy pipeline maintenance
Active Publication Date: 2019-01-25
DATANG ENVIRONMENT IND GRP
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Problems solved by technology
[0003] 1. Low safety and stability, electric heating cables are prone to aging and brittleness, and the service life is generally 3 to 5 years. After the electric heating cable is damaged, the pipeline will freeze and affect the safe and stable operation of the system
[0004] 2. The production cost is high. The power of electric heat tracing for desulfurization outdoor pipes is about 300KW, and the power consumption per day is 7200 degrees. The heating cycle in the north is 6 months, and the electricity cost is 0.25 yuan / degree. Yes: 324,000 yuan
The service life of electric heat tracing is generally 3 to 5 years. The average annual cost of replacing electric heat tracing and heat preservation in the desulfurization area is about 100,000 yuan
[0005] 3. The amount of maintenance is large. The outdoor integrated pipe rack pipes are generally tens of meters long. After the electric heat tracing is damaged, all the insulation and insulation outer guards on the entire pipe must be removed before replacement. In winter, the electric heat tracing efficiency of outdoor replacement is cold. Low, long replacement time, the pipeline will freeze seriously, which will cause non-stop of the unit or environmental protection exceeding the standard incident
[0006] 4. Defects are not easy to be found. The outdoor integrated pipe rack pipes are all suspended, and whether the electric heat tracing is normal cannot be found in time.
[0007] 5. Inspection and maintenance are inconvenient and safety risks are high. The pipes of the outdoor comprehensive pipe rack are all suspended in the air. Scaffolding needs to be erected for each inspection, and each inspection operation is a high-altitude operation; Safety accidents are prone to occur when maintenance personnel replace pipes
Method used
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Embodiment 1
[0027] Example 1, such as figure 1 As shown, a wet desulfurization outdoor integrated pipe rack pipeline antifreeze device described in the embodiment of the present invention includes: an integrated pipe rack 2, which has several layers, and adjacent layers are connected by support rods at both ends. And one end of each layer is fixedly installed on the wall 1, and the other end of the lowest layer is fixed on the steel column 5;
[0028] The pipeline 3 is laid on the integrated pipe rack 2, and a plurality of pipelines 3 are laid side by side on the integrated pipe rack 2;
[0029] The steel column 5 is arranged along the laying direction of the pipeline 3, and there is an interval between the pipeline 3, and the interval between the plurality of steel columns 5 and the pipeline 3 is connected to form the maintenance channel 4; the color steel plate is used between the plurality of steel columns 5 Connect to form the side wall surface 6, the upper ends of multiple steel col...
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The invention discloses a wet method desulfurization outdoor comprehensive pipe rack and pipeline anti-freezing device and a method. The device comprises a comprehensive pipe rack connected between awall body and steel stand columns. Pipelines are laid on the comprehensive pipe rack side by side. The steel stand columns are arranged in the laying direction of the pipelines, and gaps are formed between the steel stand columns and the pipelines. The gaps between the steel stand columns and the pipelines are communicated to form an overhaul channel. Connection is realized between the steel standcolumns, between the upper ends of the steel stand columns and the upper ends of the wall body and between the wall body below the comprehensive pipe rack and the steel stand columns through color steel plates to form a sealed space. Heating pipelines are laid on the wall body in the sealed space, and illumination and ventilation facilities are arranged in the sealed space. In addition, the invention further discloses the method for preparing the device. The anti-freezing device has the advantages that by sealing the desulfurization outdoor comprehensive pipe rack through a steel structure and the color steel plates, hot air is introduced into the sealed space after sealing, the outdoor pipelines are prevented from freezing through heating, the illumination and ventilation facilities areadded in the sealed space, and the overhaul of the pipelines is easy by adding the overhaul channel.
Description
technical field [0001] The invention relates to the technical field of wet desulfurization, in particular to an anti-freezing device and method for outdoor integrated pipe racks for wet desulfurization. Background technique [0002] Wet desulfurization has the characteristics of high energy consumption, large floor area, complex system, huge equipment, and many outdoor pipelines. In northern China, the outdoor temperature is low in winter, and outdoor pipelines must be protected from cold and frost, otherwise the pipelines will freeze and affect the safe and stable operation of the system. The outdoor pipelines in northern my country basically use electric heating to prevent freezing. First, electric heating cables are laid on the outdoor pipelines, and then aluminum silicate insulation materials are used to wrap the pipes and electric heating to prevent heat loss caused by electric heating. Finally, use The thermal insulation aluminum plate protects the thermal insulation m...
Claims
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IPC IPC(8): F16L53/32
CPCF16L53/32
Inventor 陈正强袁明宇
Owner DATANG ENVIRONMENT IND GRP