Water jacket ascension pipe heat exchanger with heat insulation and storage layer and transformation method of water jacket ascension pipe heat exchanger

[0039] Example 1

[0040] The turtle net 5 welded in the inner wall of the rising tube heat exchanger, and the tilt heat storage layer 2 is poured, and the heat storage heat storage layer 2 is attached to the inner wall of the rising tube heat exchanger 1. The turtle noodle 5 has a high temperature resistant to high-resistance, which can enhance the fixation effect of the insulation heat storage layer 2, making it more secure.

[0041] A transformation method of a rising tube heat exchanger, including the following steps:

[0042] a. Use a grinding wheel or sand blasting machine to grind the inner wall of the rising tube 1, leak the inner steel pipe;

[0043] b. Welded Turtle Net 5, in the rising tube heat exchanger inner wall welding turtle.com 5;

[0044] c. Rising tube heat exchanger 1 Press: The welded rising tube heat exchanger 1 is pressed according to the pressure on the requirements of the rising tube heat exchanger, and the pressure maintenance time is greater than 30 min;

[0045] Among them, if the rising tube heat exchanger 1 in this step is not allowed to meet the requirements, it is determined that the modified rising tube is scrapped. If the pressure is passed, it is judged that the rising tube is qualified, and the next step is performed.

[0046]. D casting heat storage layer 2: The storage material evenly to the inner wall of the riser 1 heat exchanger;

[0047] Specifically, wherein, when one ton of coke gas production when 80kg or less, the heat storage layer is equal to the vertical thickness; when the surface is greater than one ton of coke produced during steam 80kg, the heat storage layer is an inclined surface, the upper and lower varying thickness, thicker than the lower end and an upper end; thermal storage layer 2 using 75% of corundum, silicon carbide aggregate 10% high wear, high wear-resistant carbide powder 7%, a-Al 203 powder 7%, a solvent, a curing agent 1%. Mixed pouring. Hardener silicon phosphate, sodium, lithium any one curing agent, a heat storage layer insulation thickness is usually not less than 10mm. Regenerative heat insulating layer 2 having a high temperature, corrosion properties, the most deformation, not falling, has excellent thermal conductivity properties, greater thermal stability, strong heat storage capacity, the shortage of gas at temperature changes, thermal storage thermal layer 2 can itself permanently at a temperature above 450 °, effectively preventing the riser with the inner sleeve and outer leakage due to overheating, while ensuring that the heat exchanger does not end the riser tar.

[0048]. E drying or curing dry heat storage layer 2: the insulating dryer by a heat storage layer 2 drying or natural drying until the insulating layer of the heat storage heat storage insulating layer 2 hard surface.

[0049] After step e further comprises the step of: a riser pipe heat exchanger 1 is placed in the stand for at least one week drying plant.

[0050] Example 2

[0051] like Figure 3-4 , The inner wall of the rising tube heat exchanger a plurality of the inner wall of rivet welding, heat storage pouring insulation layer on the rivet, the insulating layer 2 against the heat storage of the riser; embodiment according to the present embodiment , the rivet is welded to a uniform shape of the inner wall of the riser pipe heat exchanger 1, to ensure uniform force, the rivet is a Y-type or T-shaped construction helps prevent heat accumulation layer rigid front insulating collapse the material shrinks uniformly, avoiding cracking.

[0052] The method of transformation of one kind of the riser pipe heat exchanger, comprising the steps of:

[0053]. A coke with a grinder or the blasting machine the riser inner wall of the heat exchanger 1 tar polished clean, leaking pipe wall;

[0054]. B rivet welding: the inner wall of the riser 1 uniformly heat welding said rivet;

[0055]. C suppress rising tube heat exchanger 1: The welded heat exchanger 1 of the riser to the riser in accordance with the set pressure of pressure, greater than the dwell time for 30 min;

[0056]. D casting heat storage layer 2: The storage material evenly to the inner wall of the riser 1 heat exchanger;

[0057]. E drying or curing dry heat storage layer 2: the insulating dryer by a heat storage layer 2 drying or natural drying heat storage layer 2 until the heat storage layer 2 hard surface ;

[0058] Wherein step c is increased if the heat exchanger tube can not meet the requirements of a holding pressure, determined the riser engineered scrap; holding pressure if qualified, the riser is determined qualified, the next steps.

[0059] Example 3

[0060] like Figure 5 Shown, the ascending upper, middle and lower average number of welded heat exchanger tube is fixed to the ring bars 3, and between the riser pipe and the middle heat exchanger to the fixed upper ribs, the central ring the lower ring is fixedly connected to the four ribs axially fixed between the fixing rib 34, a plurality of uniformly welded to rivet the riser pipe inner wall, the shape of the rivet is Y or T, hexagonal mesh 5 is mounted in the heat exchanger the mouth of said hoop-shaped holding ribs 3 and 4 of the axially fixed ribs consisting of 3, the ribs 4 is axially fixed, and the placing of the rivets 5 in the hexagonal mesh bars secured to said ring said thermal storage heat insulating layer 2 ,, the heat storage layer 2 against the inner wall of the riser tube heat exchanger 1.

[0061] Specifically, the fixed ring with axially fixed ribs 3 and ribs 4 Stainless steel bar, the riser inner wall of the heat exchanger 1 are welded one week four fixed bars 4, close to the axially fixed ribs 4 increase in the inner wall of the heat exchanger tube; rivet the rivet adjacent to the fixed rib 3 / shaft adjacent ring 4 the same distance from the holding ribs, are 150mm, a height lower than the thermal storage layer rivet 5mm.

[0062] The method of transformation of one kind of the riser pipe heat exchanger, comprising the steps of:

[0063]. A coke with a grinder or the blasting machine the riser inner wall of the heat exchanger 1 tar polished clean, leaking pipe wall;

[0064]. B weld ring holding ribs, axially fixed ribs, hexagonal mesh and rivets to: the rise of the ring tube heat exchanger upper, middle, and lower portions is welded to the fixed number of ribs, the ribs 3 is fixed to the tightening ring attached to the inner wall of the riser 1 heat exchanger;

[0065] In the heat exchanger between the riser bars fixed to the upper ring 3 and the middle ring to the riser holding ribs 3 are welded axially fixed number of ribs 4, the riser middle ring fixed to the fixed bars and 3 bars lower ring uprising pipe 3 welding axially fixed number of ribs 4;

[0066] No increase in the welding ring is fixed to the rib 3 and the axially fixed inner wall ribs 4 of the heat exchanger pipe uniformly welding said rivet;

[0067] To the mouth ring-shaped frame 3 toward the fixed bars 4 and ribs secured axially of said shells consisting of welded mesh 5, the hexagonal mesh 5 against the inner wall of the riser pipe heat exchanger;

[0068]. C suppress rising tube heat exchanger 1: The welded heat exchanger 1 of the riser to the riser in accordance with the set pressure of pressure, greater than the dwell time for 30 min;

[0069]. D casting heat storage layer 2: The storage material evenly onto the inner wall of the riser;

[0070]. E drying or curing dry heat storage layer 2: the insulating dryer by a heat storage layer 2 drying or natural drying heat storage layer 2 until the heat storage layer 2 hard surface ;

[0071] Wherein step c is increased if the heat exchanger tube can not meet the requirements of a holding pressure, determined the riser engineered scrap; holding pressure if qualified, the riser is determined qualified, the next steps.

[0072] Working principle: the riser tube heat exchanger 1 of the prior art comprises an outer cylinder and the inner cylinder, between the outer cylinder and the inner cylinder are water vapor and, when the shortage of gas through the riser tube heat exchanger 1, will exchange heat with the water and steam temperature drops shortage of gas, water and steam temperature was increased, when the shortage of gas outlet temperature was lowered to 450 ℃, shortage of gas tar condensation, and because the water and steam temperature is too high, the metal material of the tube body prone to high temperature oxidation, high temperature creep, resulting in deformation of the cylinder, leakage, affect the normal production of coke. Embodiments of the invention will increase the coke oven original transform tube heat exchanger, the heat exchanger increase the layer of insulating the riser inner wall of the existing heat storage layer 2, heat storage layer 2 can prevent shortage of gas rise directly to the transducer tube thermal contact, excessive heat, thus extending the life of the riser pipe heat exchanger; ton of coke produced when the amount is more than 80kg vapor, different vertical thickness of the insulating layer 2, heat storage, heat storage insulation of different thicknesses down layer 2 will rise more lower tube heat exchanger, the heat exchanger 1 on the riser section less heat, increase the heat transfer efficiency, eliminate black smoke, while reducing the generation of tar. Regenerative heat insulating layer 2 gas shortage at a temperature higher than 600 ℃, heat absorbing heat storage layer 2, to ensure that the riser inner wall steel tube metal temperature close to the temperature of the heat exchanger. When a shortage of gas temperature is low, the heat storage layer 2 emit heat insulation, the heat storage layer 2 to ensure the insulation of the outer wall temperature is higher than 450 ℃.