Flange structure of titanium steel composite plate

Abstract

The utility model belongs to the technical field of titanium steel composite plate production equipment, and particularly relates to a flange structure of a titanium steel composite plate, which comprises an equipment flange, a titanium steel composite plate cylinder and an equipment flange sealing ring A. The equipment flange is a flat welding equipment flange which is sleeved outside the titanium steel composite plate cylinder. The titanium-steel composite plate barrel is divided into a titanium-steel composite plate barrel base layer on the outer side and a titanium-steel composite plate barrel covering layer on the inner side, the titanium-steel composite plate barrel base layer and the flat welding equipment flange are welded and fixed, a groove is formed in the flat welding equipment flange, and the equipment flange sealing ring A is placed in the groove. The inner diameter of the equipment flange sealing ring A is welded and fixed to the titanium steel composite plate barrel coating, and the outer side face of the equipment flange sealing ring A is welded and fixed to the flat welding equipment flange. The utility model solves the problem of leakage caused by a titanium steel composite plate lining cylinder structure, ensures the anti-corrosion structure of equipment, is beneficial to ensuring the processing property of the equipment, and well controls the manufacturing cost.

Description

TECHNICAL FIELD

[0001] The utility model belongs to titanium steel composite board production equipment technical field, specifically speaking, it is a flange structure of titanium steel composite board. BACKGROUND

[0002] In recent years, the technology of titanium steel composite board equipment project has started, especially for the wet oxidation technology applicable to the treatment of high concentration and small flow industrial wastewater, such as papermaking black liquor, petrochemical waste lye, olefin production washing liquid etc. Wet oxidation reaction is usually carried out under high temperature and high pressure conditions, the temperature is generally between 150~350 DEG C, the pressure is between 5~20 MPa, the wastewater is pumped into the heat exchanger by the high pressure pump through the storage tank, and the temperature is raised to close to the reaction temperature after heat exchange with the high temperature oxidation liquid after reaction, and then enters the reactor. The oxygen required for the reaction is pumped into the reactor by the compressor. In the reactor, the organic matter in the wastewater reacts with oxygen. At a higher temperature, the organic matter in the wastewater is oxidized into carbon dioxide and water, or low organic acid intermediate product. After reaction, the gas-liquid mixture is separated by a separator, the liquid phase is preheated by a heat exchanger, and the feed is recovered. The high temperature and high pressure tail gas first passes through the reboiler (such as waste heat boiler) to produce steam or preheats the boiler water through the heat exchanger, the condensate produced by the reboiler is separated by the second separator and then pumped into the reactor by the circulating pump, and the separated high pressure tail gas is sent into the turbine to produce mechanical energy or electric energy. Therefore, this typical industrial catalytic wet oxidation system not only treats wastewater, but also utilizes energy step by step, reduces the loss of effective energy, and maintains and supplements the energy required by the catalytic wet oxidation system itself. Under suitable temperature and pressure conditions, the treatment effect of wet oxidation technology on high concentration organic wastewater is remarkable, the COD removal rate (percentage of chemical oxygen demand removed) can reach more than 90%, and when the high temperature medium passes through the oxidation reactor, the equipment not only needs more high temperature resistant and pressure resistant equipment, but also needs more corrosion resistant structure.

[0003] As Figure 1As shown, the flange structure of the original titanium steel clad plate is that the equipment flange is a long high neck flange 9, the inside of the long high neck flange 9 is a lining barrel 10 structure, the lining barrel 10 is welded with the equipment flange sealing ring B11, the lower surface of the equipment flange sealing ring B11 is in contact with the upper surface of the long high neck flange 9, the long high neck flange 9 is welded with the titanium steel clad plate base layer 12, and the lining barrel 10 is welded with the titanium steel clad plate cover layer 13; since the average linear expansion coefficients of the materials of the lining barrel 10 and the titanium steel clad plate base layer 12 are different, the stress caused by the expansion difference due to temperature change exceeds the tensile strength of the material, and the lining barrel 10 weld cracking problem occurs. The gasket 14 structure needs to be added here, and this structure is easy to leak at the welding position of the lining barrel 10 and the titanium steel clad plate cover layer 13, the lining barrel 10 is easy to deform when the pressure increases, leakage is formed, and equipment corrosion is caused. The cover plate 15 and the leak detection nozzle also need to be added at the butt joint of the long high neck flange 9 and the titanium steel clad plate, and the cover plate 15 may also be deformed due to the deformation of the lining barrel 10, causing leakage. Content of the utility model

[0004] In view of the above problems existing in the flange structure of the titanium steel clad plate, the purpose of the utility model is to provide a flange structure of the titanium steel clad plate which can effectively improve the weld sealing performance of the welding position of the titanium steel clad plate and the flange.

[0005] The purpose of the utility model is realized by the following technical scheme:

[0006] The utility model discloses a device flange and device flange sealing ring A still include titanium steel clad plate barrel, the device flange is flat welding device flange, the flat welding device flange is set in titanium steel clad plate barrel outside, titanium steel clad plate barrel is divided into the titanium steel clad plate barrel base layer of outside and the titanium steel clad plate barrel cover layer of inside, the titanium steel clad plate barrel base layer is welded with the fixed flat welding device flange, the recess is set up on the flat welding device flange, and the device flange sealing ring A is placed in the recess, the inner diameter of the device flange sealing ring A is welded with the fixed titanium steel clad plate barrel cover layer, and the outside of the device flange sealing ring A is welded with the fixed flat welding device flange.

[0007] Among them: the flat welding device flange and the titanium steel clad plate barrel base layer are fixedly connected through the peg.

[0008] The peg is fixedly connected with the titanium steel clad plate barrel base layer at the groove bottom of the recess.

[0009] The inner diameter of the device flange sealing ring A is open-groove welded with the titanium steel clad plate barrel cover layer, and is ground flat after welding.

[0010] The titanium steel clad plate barrel cover layer is flush with the inner diameter of the device flange sealing ring A.

[0011] The outside of the device flange sealing ring A is fixedly connected with the top surface of the flat welding device flange by silver brazing.

[0012] The end face of the titanium-steel composite plate cylinder is flush with the groove bottom.

[0013] The utility model discloses the advantages and positive effect are:

[0014] 1. The utility model discloses a long high neck flange is changed into flat welding equipment flange, and material cost is reduced, the utility model discloses a flat welding equipment flange structure, cancels the inner lining cylinder in long neck butt welding flange structure, and the inner diameter of flange sealing ring is directly welded with titanium-steel composite plate cylinder coating, avoids the expansion coefficient of lining cylinder material and base material average line because of difference, and long high neck flange adds lining cylinder structure and changes into flat welding equipment flange, solves the problem of lining cylinder weld cracking that appears because of the stress that the expansion difference caused by temperature change exceeds material tensile strength, in addition, after long high neck flange adds lining cylinder structure and changes into flat welding equipment flange, the space of loose lining is reduced, and the external pressure capacity of equipment is improved, simultaneously, also more convenient to realize the process requirement of the close and tight adhesion of loose lining part and equipment body part, reduces the risk of equipment leakage.

[0015] 2. The utility model discloses a flat welding equipment flange is provided with recess, is used for placing equipment flange sealing ring, realizes the convenience of equipment flange sealing ring centering installation, when equipment flange sealing ring is under the shearing force of equipment operation, the recess that sets up can play the fixed effect, prevents equipment flange sealing ring sliding in equipment operation, prolongs equipment service life.

[0016] 3. The utility model discloses structure no butt joint, therefore no titanium cover plate structure, titanium-steel composite plate cylinder coating and equipment flange sealing ring inner diameter flush, do not need to reduce the size of baffle or other large inner piece, guarantees the smooth installation of baffle or inner piece, is favorable to guarantee the process performance of equipment.

[0017] 4. The utility model discloses structure no lining cylinder structure, titanium-steel composite plate cylinder coating opens the groove and directly welds with equipment flange sealing ring inner diameter, solves the problem of low corrosion resistant layer strength that lining cylinder structure is caused by pressure temperature factor deformation, realizes the promotion of corrosion resistant layer strength. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the sectional view of the prior titanium-steel composite plate flange structure;

[0019] Figure 2 It is the structure schematic view of the utility model;

[0020] Figure 3 It is the structure schematic view of the flat welding equipment flange of the utility model;

[0021] Figure 4 It is the structure schematic view of the utility model;

[0022] Figure 5 It is a structure schematic diagram after the titanium steel composite plate flat cover is installed.

[0023] Figure 6 It is Figure 5 The local enlarged view of A in the middle;

[0024] Wherein: 1 is a titanium steel composite plate cylinder base layer, 2 is a flat welding equipment flange, 3 is an equipment flange sealing ring A, 4 is a titanium steel composite plate cylinder coating layer, 5 is a groove, 6 is a titanium steel composite plate flat cover base layer, 7 is an equipment gasket, 8 is a titanium steel composite plate flat cover coating layer, 9 is a long high-neck flange, 10 is a lining cylinder, 11 is an equipment flange sealing ring B, 12 is a titanium steel composite plate base layer, 13 is a titanium steel composite plate coating layer, 14 is a backing plate, and 15 is a cover plate. DETAILED DESCRIPTION

[0025] The utility model will be further described in connection with the drawings.

[0026] As Figure 2 , Figure 3 Indicated, the utility model includes equipment flange, titanium steel composite plate cylinder and equipment flange sealing ring A3, wherein equipment flange is flat welding equipment flange 2, and the cost is saved compared with long high-neck flange, and flat welding equipment flange 2 is set in the outside of titanium steel composite plate cylinder, and titanium steel composite plate cylinder is divided into titanium steel composite plate cylinder base layer 1 of outside and titanium steel composite plate cylinder coating layer 4 of inside, and titanium steel composite plate cylinder base layer 1 is welded and fixed with flat welding equipment flange 2, and the recess 5 is set up on flat welding equipment flange 2, and equipment flange sealing ring A3 is placed in recess 5, and the inner diameter of equipment flange sealing ring A3 is welded and fixed with titanium steel composite plate cylinder coating layer 4, and the outside of equipment flange sealing ring A3 is welded and fixed with flat welding equipment flange 2.

[0027] The inner diameter of equipment flange sealing ring A3 of this embodiment is beveling welded with titanium steel composite plate cylinder coating layer 4, and is ground flat after welding.

[0028] The structure of this embodiment has no butt joint, so there is no titanium cover plate structure; the inner diameter of titanium steel composite plate cylinder coating layer 4 and equipment flange sealing ring A3 is flush, without the need to reduce the size of baffle or other large inner parts, ensuring the smooth installation of baffle or other large inner parts, which is beneficial to ensure the process performance of the equipment.

[0029] The structure of this embodiment has no butt joint, so there is no titanium cover plate structure, and no lining cylinder structure; the inner diameter of titanium steel composite plate cylinder coating layer 4 and equipment flange sealing ring A3 is directly welded, which solves the welding cracking of the lining cylinder structure caused by temperature difference stress, and ensures the corrosion-resistant structure of the equipment.

[0030] The end face of the titanium steel composite plate cylinder of the embodiment is flush with the groove bottom of the groove 5, the outer side face of the equipment flange sealing ring A3 is fixedly connected with the top face of the flat welding equipment flange 2 by silver brazing, the convenience of the centering installation of the equipment flange sealing ring A3 is realized, when the equipment flange sealing ring A3 is subjected to shearing force during equipment operation, the groove 5 plays a fixing role, and the sliding of the equipment flange sealing ring A3 during equipment operation is prevented.

[0031] As shown in Figure 4 In order to strengthen the strength of the flange structure, the flat welding equipment flange 2 and the titanium steel composite plate cylinder base layer 1 are fixedly connected through the peg 16 in the embodiment, and the peg 16 is fixedly connected with the titanium steel composite plate cylinder base layer 1 at the groove bottom of the groove 5. The peg 16 between the flat welding equipment flange 2 and the titanium steel composite plate cylinder is more suitable for the equipment with limited equipment flange space, and the space of the titanium steel composite plate cylinder is borrowed.

[0032] The workpiece principle of the utility model is:

[0033] The titanium steel composite plate cylinder base layer 1 and the flat welding equipment flange 2 are fixedly connected, the flat welding equipment flange 2 is provided with the groove 5 for placing the equipment flange sealing ring A3, the inner diameter of the equipment flange sealing ring A3 is bevel welded with the titanium steel composite plate cladding layer 4, the outer side face of the equipment flange sealing ring A3 is fixedly connected with the flat welding equipment flange 2 by silver brazing. The structure is changed from the long neck butt welding flange to the flat welding equipment flange 2, and the material cost is reduced. The upper surface of the flat welding equipment flange 2 is provided with the groove 5 for placing the equipment flange sealing ring A3, the convenience of the centering installation of the equipment flange sealing ring A3 is realized, when the equipment flange sealing ring A3 is subjected to shearing force during equipment operation, the groove 5 plays a fixing role, and the sliding of the equipment flange sealing ring A3 during equipment operation is prevented, the sealing performance is improved, and the service life of the equipment is prolonged.

[0034] As shown in Figure 5 , Figure 6 When the utility model is installed with the titanium steel composite plate flat cover, the flat welding equipment flange 2 and the titanium steel composite plate flat cover base layer 6 are connected through bolts, and the equipment gasket 7 is arranged between the equipment flange sealing ring A3 and the titanium steel composite plate flat cover cladding layer 8.

[0035] The utility model discloses structure has no butt joint, therefore has no titanium cover plate structure, titanium steel composite board cylinder cladding 4 with equipment flange seal ring A3 inner diameter is flush, need not reduce baffle or other large -scale inner -piece size, has guaranteed the smooth installation of baffle or other large -scale inner -piece, is favorable to guarantee the process performance of equipment. The utility model discloses structure has no lining tube structure, because the average linear expansion coefficient of lining tube material and base material is different, long high neck flange plus lining tube's structure changes into flat -welding equipment flange 2, the stress that has solved the expansion amount difference that causes because temperature change leads to appears lining tube weld cracking problem that exceeds material tensile strength. In addition, long high neck flange plus lining tube's structure changes into flat -welding equipment flange 2 later, has reduced the space of loose lining, has improved the bearing external pressure ability of equipment. Meanwhile, also more convenient to realize loose lining part and equipment body part close and solid process requirement.

Claims

1. A flange structure of a titanium steel composite plate, comprising a device flange and a device flange sealing ring A (3), characterized in that: Also include titanium steel composite plate cylinder, the equipment flange is flat welding equipment flange (2), the flat welding equipment flange (2) is set outside titanium steel composite plate cylinder, the titanium steel composite plate cylinder is divided into the titanium steel composite plate cylinder base layer (1) of outside and the titanium steel composite plate cylinder cover layer (4) of inside, the titanium steel composite plate cylinder base layer (1) is welded and fixed with flat welding equipment flange (2), recess (5) is set on flat welding equipment flange (2), equipment flange sealing ring A (3) is placed in recess (5), the inner diameter of equipment flange sealing ring A (3) is welded and fixed with titanium steel composite plate cylinder cover layer (4), the outside surface of equipment flange sealing ring A (3) is welded and fixed with flat welding equipment flange (2).

2. The flange structure of the titanium-steel clad plate according to claim 1, characterized by: The flat welding equipment flange (2) and the titanium steel composite plate cylinder base layer (1) are fixed by the plug (16).

3. The flange structure of the titanium-steel clad plate according to claim 2, characterized by: The plug (16) is fixed with the titanium steel composite plate cylinder base layer (1) at the groove bottom of the recess (5).

4. The flange structure of the titanium-steel clad plate according to claim 1, wherein: The inner diameter of the equipment flange sealing ring A (3) is beveling welded with the titanium steel composite plate cylinder cover layer (4), and is ground after welding.

5. The flange structure of the titanium-steel clad plate according to claim 1, wherein: The titanium steel composite plate cylinder cover layer (4) is flush with the inner diameter of the equipment flange sealing ring A (3).

6. The flange structure of the titanium-steel clad plate according to claim 1, wherein: The outside surface of the equipment flange sealing ring A (3) and the top surface of the flat welding equipment flange (2) are fixed by silver brazing.

7. The flange structure of the titanium-steel clad plate according to claim 1, wherein: The titanium steel composite plate cylinder end surface is flush with the groove bottom of the recess (5).

Images