Efficient and energy-saving hot air circulating system of high-molecular cracker

Abstract

The utility model discloses an efficient and energy-saving hot air circulating system of a macromolecule cracker, which comprises a hot air circulating pipeline, the hot air circulating pipeline comprises a waste heat collecting pipeline, a plurality of waste heat flow guide pipes are arranged at the bottom end of the waste heat collecting pipeline, and hot air return pipes are arranged at the front ends of the waste heat flow guide pipes. A hot air recycling pipeline is installed at the bottom end of the hot air backflow pipe, a hot air output pipe is installed at one end of the hot air recycling pipeline, a cold air conveying pipe is installed on one side of the hot air output pipe, a preheating pipeline is installed at the upper end of the cold air conveying pipe, and a plurality of arc-shaped preheating bases are installed at the front end of the preheating pipeline; a plurality of auxiliary combustion air supply bins are installed behind the cold air conveying pipe. According to the utility model, waste heat utilization and hot air recovery are carried out on heat energy for pyrolysis and purification of high polymer materials, so that the energy consumption is effectively reduced, the purpose of energy conservation is realized, hot air can be conveniently and circularly conveyed, the temperature fluctuation in the heating process is reduced, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat recovery technical field, concretely is high -efficient energy -conserving high polymer cracker hot air circulation system. BACKGROUND

[0002] Static cracker is to utilize external force or energy to break the internal connection of structure or sample, realize the purpose of cracking, wherein the cracker utilizes high temperature to make the organic matter in sample decompose rapidly, generate small molecule compound, so as to carry out subsequent qualitative and quantitative analysis, and this mode has wide application in the field of organic matter analysis;

[0003] When high molecular material is cracked, hot blast furnace needs to be installed at the hot gas input end of cracker, and the hot blast furnace has many varieties and complete series, and one of the main functions of the hot blast furnace is to heat the cracker, and after the high molecular material is cracked by the cracker, a fractionating column needs to be used for further purification, so as to remove impurities.

[0004] At present, a large amount of heat energy is needed for heating during the cracking and purification of high molecular material, and the heat energy is easy to be lost after being used, resulting in energy waste, and the temperature fluctuation during the heating process is large, which affects the product quality, therefore, the existing demand is not met, and for this, the high -efficient energy -conserving high polymer cracker hot air circulation system is provided. UTILITY MODEL CONTENT

[0005] The utility model aims at providing high -efficient energy -conserving high polymer cracker hot air circulation system to solve the problem that a large amount of heat energy is needed for heating during the cracking and purification of high molecular material in the above background art, heat energy is easy to be lost after being used, resulting in energy waste, and the temperature fluctuation during the heating process is large, which affects the product quality.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: high -efficient energy -conserving high polymer cracker hot air circulation system, including hot air circulation pipeline, the hot air circulation pipeline includes waste heat collecting pipe line, the bottom of waste heat collecting pipe line is installed with a plurality of waste heat guide tubes, the front end of waste heat guide tube is installed with heat backflow pipe, the bottom of heat backflow pipe is installed with hot gas recycling pipeline, one end of hot gas recycling pipeline is installed with hot gas output pipe, one side of hot gas output pipe is installed with cold air conveying pipe, the upper end of cold air conveying pipe is installed with preheating pipeline, the front end of preheating pipeline is installed with a plurality of arc preheating seats, the rear of cold air conveying pipe is installed with a plurality of auxiliary combustion gas supply warehouses, the rear end of auxiliary combustion gas supply warehouse is installed with combustion gas conveying pipeline, the waste heat guide tube and heat backflow pipe are installed with catalytic preheating conveying pipe.

[0007] Preferably, the bottom end of the hot air circulating pipeline is provided with a plurality of hot air furnaces, the front end of the hot air furnace is provided with a cracker, and the upper end of the cracker is provided with a fractionating tower.

[0008] Preferably, the input end of the hot air furnace is fixedly connected with a combustion gas conveying pipeline, the input end of the hot air furnace is through-connected with an auxiliary combustion gas supply bin through the combustion gas conveying pipeline, the inside of the auxiliary combustion gas supply bin is filled with combustion agents and combustion-supporting agents, and the output end of the hot air furnace is through-connected with the input end of the cracker through a hot gas output pipe.

[0009] Preferably, the hot gas output pipe is through-connected with a hot gas return pipe through a hot gas recycling pipeline, the bottom end of the hot gas recycling pipeline is inserted into the inside of the hot air furnace, and fans are arranged between the hot gas output pipe, the hot gas recycling pipeline, the hot air furnace and the waste heat collecting pipeline.

[0010] Preferably, the fractionating tower is composed of a vertical fractionating tank and a horizontal fractionating tank, the output end of the cracker is through-connected with the vertical fractionating tank, and the catalytic preheating conveying pipe is through-connected with the vertical fractionating tank.

[0011] Preferably, the waste heat guide pipe is through-connected with an arc-shaped preheating seat through a preheating pipeline, and a gate valve is arranged between the arc-shaped preheating seat and the cracker.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1. The hot air furnace is connected with the hot gas recycling pipeline through the hot gas output pipe, so that the temperature rising rate of the hot air furnace is accelerated, when the temperature meets the requirement of cracking, the hot gas is recycled through the hot gas return pipe and is returned through the hot gas recycling pipeline and the waste heat guide pipe, the hot air furnace can utilize the hot gas after cracking, the use amount of combustion agents in the hot air furnace is reduced, the heat loss of the hot gas is reduced, the waste heat of the hot gas is collected through the waste heat collecting pipeline, and the energy saving purpose is achieved.

[0014] 2. The preheating pipeline is connected with the waste heat guide pipe, so that the hot gas of the waste heat is conveyed to the inside of the cracker, the waste heat guide pipe is connected with the catalytic preheating conveying pipe, so that the hot gas of the waste heat is conveyed to the inside of the fractionating tower, the preheating of the cracker and the fractionating tower is realized, the processing rate of the high molecular material is improved, the cold air conveying pipe is connected with the hot gas output pipe, so that the cold gas is conveyed to the inside of the cracker, the rapid cooling of the cracker is realized, the waste heat utilization and the hot air recycling of the heat energy used for cracking and purifying the high molecular material are realized, the energy consumption is effectively reduced, the hot air is conveniently recycled, the temperature fluctuation in the heating process is reduced, and the product quality is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structure schematic view of the utility model;

[0016] Figure 2 It is the overhead view of the utility model;

[0017] Figure 3 It is the structure schematic view of the hot air circulation pipeline of the utility model;

[0018] Figure 4 It is the structure schematic view of the utility model Figure 3 The enlarged structure schematic view of A area in the middle.

[0019] In the drawing: 1, hot air circulation pipeline; 101, waste heat collection pipeline; 102, waste heat guide pipe; 103, preheating pipeline; 104, arc preheating seat; 105, auxiliary combustion gas supply warehouse; 106, cold air conveying pipe; 107, combustion gas conveying pipeline; 108, hot gas recycling pipeline; 109, hot gas return pipe; 110, catalytic preheating conveying pipe; 111, hot gas output pipe; 2, hot blast furnace; 3, cracker; 4, fractionating column. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Please refer to Figures 2 to 4 The utility model provides an embodiment: high -efficient energy -conserving macromolecular cracker hot air circulation system, including hot air circulation pipeline 1, hot air circulation pipeline 1 includes waste heat collection pipeline 101, the bottom end of waste heat collection pipeline 101 is installed with multiple waste heat guide pipe 102, the front end of waste heat guide pipe 102 is installed with hot gas return pipe 109, the bottom end of hot gas return pipe 109 is installed with hot gas recycling pipeline 108, one end of hot gas recycling pipeline 108 is installed with hot gas output pipe 111, hot gas output pipe 111 is connected through hot gas recycling pipeline 108 with hot gas return pipe 109, and hot gas is recycled through hot gas return pipe 109 and is returned through hot gas recycling pipeline 108 and waste heat guide pipe 102, so that hot blast furnace 2 can utilize the hot gas after cracking again, and the use amount of combustion agent in hot blast furnace 2 is reduced;

[0022] One side of the hot gas output pipe 111 is provided with a cold air conveying pipe 106, an upper end of the cold air conveying pipe 106 is provided with a preheating pipe 103, a front end of the preheating pipe 103 is provided with a plurality of arc-shaped preheating seats 104, the waste heat guide pipe 102 is connected with the arc-shaped preheating seat 104 through the preheating pipe 103, a rear of the cold air conveying pipe 106 is provided with a plurality of auxiliary combustion gas supply warehouses 105, a rear end of the auxiliary combustion gas supply warehouse 105 is provided with a combustion gas conveying pipe 107, the waste heat guide pipe 102 and the hot gas return pipe 109 are provided with a catalytic preheating conveying pipe 110, the waste heat guide pipe 102 sends the hot gas to the inside of the fractionating tower 4 through the catalytic preheating conveying pipe 110, so as to preheat the cracker 3 and the fractionating tower 4.

[0023] Please refer to Figure 1 and Figure 4 , a plurality of hot air furnaces 2 are arranged at a bottom end of the hot air circulation pipeline 1, an input end of the hot air furnace 2 is fixedly connected with the combustion gas conveying pipe 107, the inside of the auxiliary combustion gas supply warehouse 105 is filled with combustion agent and combustion-supporting agent, the input end of the hot air furnace 2 is connected with the auxiliary combustion gas supply warehouse 105 through the combustion gas conveying pipe 107, the auxiliary combustion gas supply warehouse 105 inputs the combustion agent and the combustion-supporting agent into the inside of the hot air furnace 2 through the combustion gas conveying pipe 107 and burns them, so as to heat the hot air furnace 2;

[0024] The bottom end of the hot gas recycling pipe 108 is inserted into the inside of the hot air furnace 2, the cold air conveying pipe 106, the hot gas recycling pipe 108, the hot air furnace 2 and the waste heat guide pipe 102 are all provided with a fan, the hot air furnace 2 sends the hot gas to the hot gas recycling pipe 108 through the hot gas output pipe 111, so as to accelerate the heating rate of the hot air furnace 2.

[0025] Please refer to Figure 2 and Figure 4 , a cracker 3 is arranged at a front end of the hot air furnace 2, an output end of the hot air furnace 2 is connected with an input end of the cracker 3 through the hot gas output pipe 111, a gate valve is arranged between the arc-shaped preheating seat 104 and the cracker 3, the hot air furnace 2 sends the hot gas to the inside of the cracker 3 through the hot gas output pipe 111, so that the hot gas flows in multiple directions in the inside of the cracker 3, thereby realizing stable cracking of the high molecular material;

[0026] A fractionating tower 4 is arranged at an upper end of the cracker 3, the fractionating tower 4 is composed of a vertical fractionating tank and a horizontal fractionating tank, an output end of the cracker 3 is connected with the vertical fractionating tank, the catalytic preheating conveying pipe 110 is connected with the vertical fractionating tank, the vertical fractionating tank and the horizontal fractionating tank can realize corresponding catalytic fractionation of different types of high molecular materials, thereby realizing refinement and purification of the high molecular material.

[0027] In use, when the polymer material is cracked, the polymer material is placed in the inside of the cracker 3, the power is turned on, the combustion-supporting gas warehouse 105 inputs the combustion-supporting gas into the inside of the hot blast furnace 2 through the combustion gas conveying pipeline 107 and is combusted, the hot blast furnace 2 is heated, the hot blast furnace 2 returns the hot gas through the hot gas recycling pipeline 108 through the hot gas output pipe 111, the heating rate of the hot blast furnace 2 is accelerated, when the temperature meets the cracking requirement, the hot blast furnace 2 inputs the hot gas into the inside of the cracker 3 through the hot gas output pipe 111, the hot gas flows in the inside of the cracker 3, and the polymer material is cracked stably;

[0028] Then the hot gas is recycled through the hot gas return pipe 109 and is returned through the hot gas recycling pipeline 108 and the waste heat guide pipe 102, the hot blast furnace 2 can recycle the hot gas after cracking, the use amount of the combustion-supporting gas in the hot blast furnace 2 is reduced, the heat loss of the hot gas is reduced, the waste heat of the hot gas is collected through the waste heat collecting pipeline 101 through the waste heat guide pipes 102, the energy-saving purpose is achieved, the polymer material after cracking is input into the inside of the fractional distillation column 4 through the output end of the cracker 3, different kinds of polymer materials are catalytically cracked through the fractional distillation column 4, the polymer material is refined and purified;

[0029] The waste heat guide pipes 102 and the arc-shaped preheating seats 104 are connected through the preheating pipeline 103, the preheating pipeline 103 inputs the hot gas of the waste heat into the inside of the cracker 3 through the waste heat guide pipes 102, the waste heat guide pipes 102 input the hot gas of the waste heat into the inside of the fractional distillation column 4 through the catalytic preheating conveying pipe 110, the cracker 3 and the fractional distillation column 4 are preheated, the processing rate of the polymer material is improved, and the cold gas is input into the inside of the cracker 3 through the cold gas conveying pipe 106 and the hot gas output pipe 111, the cracker 3 is rapidly cooled.

[0030] It is apparent for those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, and the present application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the foregoing embodiments should be considered in all aspects as exemplary and not restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all changes falling within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to which the reference signs are concerned.

Claims

1. A high polymer cracker hot air circulation system with high efficiency and energy saving, comprising a hot air circulation pipeline (1), characterized in that: The hot air circulation pipeline (1) comprises a waste heat collecting pipeline (101), a plurality of waste heat guide pipes (102) are installed at the bottom end of the waste heat collecting pipeline (101), a hot gas return pipe (109) is installed at the front end of the waste heat guide pipe (102), a hot gas recycling pipeline (108) is installed at the bottom end of the hot gas return pipe (109), a hot gas output pipe (111) is installed at one end of the hot gas recycling pipeline (108), a cold air conveying pipe (106) is installed on one side of the hot gas output pipe (111), a preheating pipeline (103) is installed at the upper end of the cold air conveying pipe (106), a plurality of arc-shaped preheating seats (104) are installed at the front end of the preheating pipeline (103), a plurality of auxiliary combustion gas supply warehouses (105) are installed behind the cold air conveying pipe (106), a combustion gas conveying pipeline (107) is installed at the rear end of the auxiliary combustion gas supply warehouse (105), and a catalytic preheating conveying pipe (110) is installed between the waste heat guide pipe (102) and the hot gas return pipe (109).

2. The high-efficiency and energy-saving thermal-oxidative cracking system of claim 1, wherein: A plurality of hot air furnaces (2) are installed at the bottom end of the hot air circulation pipeline (1), a cracker (3) is installed at the front end of the hot air furnace (2), and a fractionating tower (4) is installed at the upper end of the cracker (3).

3. The high-efficiency and energy-saving hot air circulating system of the polymer cracker according to claim 2, characterized in that: The input end of the hot air furnace (2) is fixedly connected with the combustion gas conveying pipeline (107), the input end of the hot air furnace (2) is through-connected with the auxiliary combustion gas supply warehouse (105) through the combustion gas conveying pipeline (107), the inside of the auxiliary combustion gas supply warehouse (105) is filled with combustion agents and combustion-supporting agents, and the output end of the hot air furnace (2) is through-connected with the input end of the cracker (3) through the hot gas output pipe (111).

4. The high-efficiency and energy-saving hot air circulating system of a polymer cracker as claimed in claim 3, characterized in that: The hot gas output pipe (111) and the hot gas return pipe (109) are through-connected through the hot gas recycling pipeline (108), the bottom end of the hot gas recycling pipeline (108) is inserted into the inside of the hot air furnace (2), and fans are arranged between the hot gas output pipe (111) and the cold air conveying pipe (106), the hot gas recycling pipeline (108), the hot air furnace (2) and the waste heat collecting pipeline (101) and the waste heat guide pipe (102).

5. The high-efficiency, energy-saving, high polymer pyrolysis hot air circulation system of claim 4, wherein: The fractionating tower (4) is composed of a vertical fractionating tank and a horizontal fractionating tank, the output end of the cracker (3) is through-connected with the vertical fractionating tank, and the catalytic preheating conveying pipe (110) is through-connected with the vertical fractionating tank.

6. The high-efficiency, energy-saving, high polymer pyrolysis hot air circulation system of claim 5, wherein: The waste heat guide pipe (102) and the arc-shaped preheating seat (104) are through-connected through the preheating pipeline (103), and a gate valve is arranged between the arc-shaped preheating seat (104) and the cracker (3).

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