阅读说明：本技术 一种防腐蚀管壳式换热器用前端盖及其制造方法 (Front end cover for anti-corrosion shell-and-tube heat exchanger and manufacturing method thereof ) 是由 陈龙展 黄朝文 于 2021-10-09 设计创作，主要内容包括：本发明公开了一种防腐蚀管壳式换热器用前端盖及其制造方法,涉及换热器技术领域,包括端盖本体、进料管以及出料管,该装置主要由端盖本体与防腐组件构成,端盖本体由铸铁构成,而防腐组件外部由工程塑料构成,端盖本体具有质地坚硬不易变形的特性,在拆卸安装过程中能够对防腐组件起到保护的作用,避免防腐组件受到外力破坏而损坏,从而延长了防腐组件的使用寿命,端盖本体与防腐组件的采用分体式设计,防腐组件或者端盖本体长时间使用发生损坏后,可将二者分离,将未损坏的防腐组件或者端盖本体重新再利用,避免材料的浪费,从而节省了企业的制造成本,而且端盖本体与防腐组件的组合使该装置重量大大降低,便于拆卸安装。(The invention discloses a front end cover for an anti-corrosion shell-and-tube heat exchanger and a manufacturing method thereof, relating to the technical field of heat exchangers, comprising an end cover body, a feeding pipe and a discharging pipe, wherein the device mainly comprises the end cover body and an anti-corrosion assembly, the end cover body is made of cast iron, the outer part of the anti-corrosion assembly is made of engineering plastics, the end cover body has the characteristics of hard texture and difficult deformation, the anti-corrosion assembly can be protected in the dismounting and mounting process, and the anti-corrosion assembly is prevented from being damaged by external force, so that the service life of the anti-corrosion assembly is prolonged, the end cover body and the anti-corrosion assembly are designed in a split type, after the anti-corrosion assembly or the end cover body is damaged after being used for a long time, the anti-corrosion assembly or the end cover body can be separated, the undamaged anti-corrosion assembly or the end cover body can be reused, the waste of materials is avoided, and the manufacturing cost of enterprises is saved, and the combination of the end cover body and the anti-corrosion component greatly reduces the weight of the device and is convenient to disassemble and assemble.)

1. The utility model provides a front end cover for anticorrosion shell and tube heat exchanger, includes end cover body (1), inlet pipe (2) and discharging pipe (3), a lateral wall of end cover body (1) is fixed respectively and is provided with inlet pipe (2) and discharging pipe (3), its characterized in that: the anti-corrosion end cover comprises an end cover body (1), and is characterized in that a mounting groove (4) is formed in one side wall of the end cover body (1), a sealing gasket (5) and an anti-corrosion assembly (6) are arranged in the mounting groove (4) respectively, the sealing gasket (5) is located between the end cover body (1) and the anti-corrosion assembly (6), a dismounting groove (7) is formed in one side wall of the end cover body (1) in an annular array mode, a first limiting hole (8) is formed in the middle of the bottom of the dismounting groove (7), a first strong magnet (9) is fixedly arranged at the bottom of the dismounting groove (7), a positioning assembly (10) is arranged in the first limiting hole (8), a limiting block (11) is arranged in one side wall of the mounting groove (4), and a second limiting hole (12) and a guide groove (13) are formed in one side wall of the anti-corrosion assembly (6) respectively;

anticorrosive subassembly (6) are including outer engineering plastic layer (601) and interior engineering plastic layer (602), outer engineering plastic layer (601) is two members that the structure is the same completely with interior engineering plastic layer (602), a lateral wall fixedly connected with puigging (603) of interior engineering plastic layer (602), a lateral wall fixedly connected with buffer layer (604) of puigging (603), a lateral wall fixedly connected with sound absorbing layer (605) of buffer layer (604).

2. The front end cover for an anti-corrosion shell and tube heat exchanger according to claim 1, wherein: feed port (14) and discharge opening (15) have been seted up respectively to a lateral wall of anticorrosive subassembly (6), the internal diameter size of feed port (14) and discharge opening (15) is the same with the internal diameter size of inlet pipe (2), discharging pipe (3) respectively, and the position one-to-one.

3. The front end cover for an anti-corrosion shell and tube heat exchanger according to claim 1, wherein: a plurality of mounting holes (16) are formed in one side wall of the end cover body (1) in an annular array mode, and the mounting holes (16) are connected with the heat exchanger body through fastening bolts.

4. The front end cover for an anti-corrosion shell and tube heat exchanger according to claim 1, wherein: the limiting blocks (11) and the guide grooves (13) are distributed in an annular array mode, the limiting blocks (11) are equal to the guide grooves (13) in number, and the limiting blocks correspond to the guide grooves in position one to one.

5. The front end cover for an anti-corrosion shell and tube heat exchanger according to claim 1, wherein: the inner structure of the second limiting hole (12) is matched with the first limiting hole (8), and when the guide groove (13) is matched with the limiting block (11), the second limiting hole (12) corresponds to the hole position of the first limiting hole (8) one by one.

6. The front end cover for an anti-corrosion shell and tube heat exchanger according to claim 1, wherein: the positioning assembly (10) comprises a bearing cover (1001), a second powerful magnet (1002) is fixedly arranged at the bottom of the bearing cover (1001), and the second powerful magnet (1002) and the first powerful magnet (9) attract each other when approaching each other.

7. The front end cover for an anti-corrosion shell and tube heat exchanger according to claim 6, wherein: the bottom of the second powerful magnet (1002) is fixedly connected with a limiting column (1003), and grabbing grooves (1004) are formed in the left side wall and the right side wall of the bearing cover (1001).

8. The front end cover for an anti-corrosion shell and tube heat exchanger according to claim 7, wherein: the structure and the shape of the limiting column (1003) are matched with those of the first limiting hole (8).

9. A method of manufacturing a front end cover for an anti-corrosion shell and tube heat exchanger according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:

step one, casting and molding an end cover body: taking a special die for the end cover body (1), casting the cast iron in a molten state into the die, and taking out the cast iron from the die for later use after cooling and forming;

secondly, casting and molding the positioning component, namely taking a mold of the positioning component (10), casting the cast iron in a molten state into the mold, and taking out the cast iron from the mold for later use after cooling and molding;

step three, mounting a magnet: removing the two strong magnets, cutting the strong magnets into shapes and sizes matched with the limiting column (1003) and the dismounting groove (7) by using a cutting tool, and installing the strong magnets into the dismounting groove (7) and the limiting column (1003);

step four, forming the anticorrosive assembly: conveying a plurality of materials including the outer engineering plastic layer (601), the inner engineering plastic layer (602), the sound insulation layer (603), the shock absorption layer (604) and the sound absorption layer (605) to a compression molding machine to be manufactured into a composite plate by adopting a composite process, and cutting the composite plate into a size matched with the inner cavity of the mounting groove (4) by using a cutting machine;

step five, assembling and forming: firstly, the sealing gasket (5) is installed in the installation groove (4), then the guide groove (13) of the outer wall of the anti-corrosion component (6) is aligned to the limiting block (11), the guide groove (13) is clamped with the limiting block (11), meanwhile, the position of each second limiting hole (12) corresponds to the position of the first limiting hole (8), and at the moment, the positioning component (10) is inserted into the first limiting hole (8) and the second limiting hole (12), so that the assembly is completed.

Technical Field

The invention relates to the technical field of heat exchangers, in particular to a front end cover for an anti-corrosion shell-and-tube heat exchanger and a manufacturing method thereof.

Background

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called as a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum industry, power industry, food industry and other industrial production, can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in chemical industry production, and is widely applied. The heat exchanger consists of a shell, a heat transfer tube bundle, a tube plate, a baffle plate (baffle plate), a tube box and the like. The shell is mostly cylindrical, a tube bundle is arranged in the shell, and two ends of the tube bundle are fixed on the tube plate. One of the cold fluid and the hot fluid which carry out heat exchange flows in the tube and is called tube pass fluid; the other type flowing outside the pipe, called shell side fluid, can be made of various structural materials (mainly metal materials), can be used under high temperature and high pressure, and is the most widely applied type at present.

But traditional front end housing for shell-and-tube heat exchanger adopts cast iron and cast copper more to form, make equipment very heavy, it can accomplish just to need equipment such as loop wheel machine to assist when dismantling the installation, the installation of heat exchanger front end housing has been strengthened, the dismantlement degree of difficulty, and the front end housing that cast iron box cast copper made still has many sand holes phenomenon, the leakage point is many promptly, the corrosion protection ability is poor, lead to the life of heat exchanger front end housing to shorten greatly, make the enterprise need regularly change the heat exchanger front end housing and just can make the heat exchanger normally work, the manufacturing cost of enterprise has been increased, furthermore, the heat exchanger is at the during operation, because its inside heat exchange tube constantly has liquid flow, consequently, traditional heat exchanger front end housing leakproofness and noise insulation can not reach the requirement, cause the external noise great.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the front end cover for the anti-corrosion shell-and-tube heat exchanger and the manufacturing method thereof, and solves the problems that the traditional heat exchanger end cover is very heavy, is inconvenient to install and disassemble, can be manufactured by adopting cast iron or cast copper together with the front end cover of the heat exchanger only by large auxiliary equipment, is easy to have more sand holes, causes leakage conditions, has poor sound insulation effect and influences the surrounding working environment.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a front end cover for anticorrosion shell-and-tube heat exchanger, includes end cover body, inlet pipe and discharging pipe, a lateral wall of end cover body is fixed inlet pipe and the discharging pipe of being provided with respectively, the mounting groove has been seted up to a lateral wall of end cover body, the inside of mounting groove is provided with sealed pad and anticorrosive subassembly respectively, sealed pad is located between end cover body and the anticorrosive subassembly, the dismounting groove has been seted up with the annular array mode to a lateral wall of end cover body, first spacing hole has been seted up to the bottom intermediate position of dismounting groove, and the fixed first powerful magnet that is provided with in bottom of dismounting groove, the inside in first spacing hole is provided with locating component, an inside lateral wall of mounting groove is provided with the stopper, spacing hole of second and guide way have been seted up respectively to a lateral wall of anticorrosive subassembly.

The anticorrosive subassembly includes outer engineering plastic layer and interior engineering plastic layer, outer engineering plastic layer is two members that the structure is the same completely with interior engineering plastic layer, a lateral wall fixedly connected with puigging of interior engineering plastic layer, a lateral wall fixedly connected with buffer layer of puigging, a lateral wall fixedly connected with sound-absorbing layer of buffer layer.

Furthermore, a feed port and a discharge hole are respectively formed in one side wall of the anti-corrosion assembly, the inner diameters of the feed port and the discharge hole are respectively the same as those of the feed pipe and the discharge pipe, and the positions of the feed port and the discharge hole correspond to those of the feed pipe and the discharge pipe one to one.

Furthermore, a plurality of mounting holes are formed in one side wall of the end cover body in an annular array mode, and the mounting holes are connected with the heat exchanger body through fastening bolts.

Furthermore, the limiting blocks and the guide grooves are distributed in an annular array mode, the limiting blocks and the guide grooves are equal in number, and the limiting blocks and the guide grooves are in one-to-one correspondence in position.

Furthermore, the internal structure of the second limiting hole is matched with the first limiting hole, and when the guide groove is matched with the limiting block in position, the second limiting hole corresponds to the hole position of the first limiting hole in a one-to-one mode.

Furthermore, the locating component comprises a bearing cover, a second powerful magnet is fixedly arranged at the bottom of the bearing cover, and the second powerful magnet and the first powerful magnet attract each other when approaching each other.

Further, the bottom fixedly connected with spacing post of second powerful magnet, the left and right sides wall that bears the weight of the lid has all been seted up and has been snatched the groove.

Furthermore, the structure and the shape of the limiting column are matched with the first limiting hole.

The invention also discloses a manufacturing method of the front end cover for the anti-corrosion shell-and-tube heat exchanger, which comprises the following steps:

step one, casting and molding an end cover body: and taking a special die for the end cover body, casting the cast iron in a molten state into the die, and taking out the cast iron from the die for later use after cooling and forming.

And step two, casting and molding the positioning component, namely taking the positioning component mold, casting the cast iron in a molten state into the mold, and taking the cast iron out of the mold for later use after cooling and molding.

Step three, mounting a magnet: and removing the two strong magnets, cutting the strong magnets into shapes and sizes matched with the limiting column and the dismounting groove respectively by using a cutting tool, and installing the strong magnets into the dismounting groove and the limiting column.

Step four, forming the anticorrosive assembly: the composite process is adopted to convey various materials of the outer engineering plastic layer, the inner engineering plastic layer, the sound insulation layer, the shock absorption layer and the sound absorption layer to a compression molding machine to be manufactured into a composite board, and a cutting machine is used for cutting the composite board into a size matched with the inner cavity of the mounting groove.

Step five, assembling and forming: at first inside the installation groove is gone into with sealed the pad installation, then aim at the guide way and the stopper of anticorrosive subassembly outer wall to with guide way and stopper looks joint, meanwhile, the position in the spacing hole of every second is corresponding with the position in first spacing hole, inject locating component in first spacing hole and the spacing hole of second this moment, thereby accomplish the equipment.

Advantageous effects

The invention provides a front end cover for an anti-corrosion shell-and-tube heat exchanger and a manufacturing method thereof. Compared with the prior art, the method has the following beneficial effects:

1. a front end cover for an anti-corrosion shell-and-tube heat exchanger and a manufacturing method thereof comprise an end cover body, a feeding tube and a discharging tube, wherein the feeding tube and the discharging tube are respectively and fixedly arranged on one side wall of the end cover body, a mounting groove is formed in one side wall of the end cover body, a sealing gasket and an anti-corrosion assembly are respectively arranged inside the mounting groove, the sealing gasket is positioned between the end cover body and the anti-corrosion assembly, a dismounting groove is formed in one side wall of the end cover body in an annular array mode, a first limiting hole is formed in the middle of the bottom of the dismounting groove, a first strong magnet is fixedly arranged at the bottom of the dismounting groove, a positioning assembly is arranged inside the first limiting hole, a limiting block is arranged on one side wall inside the mounting groove, a second limiting hole and a guide groove are respectively formed in one side wall of the anti-corrosion assembly, the device mainly comprises the end cover body and the anti-corrosion assembly, and the end cover body is made of cast iron, and anticorrosive subassembly outside comprises engineering plastic, and the end cover body has the characteristic of the hard non-deformable of texture, can play the effect of protection to anticorrosive subassembly in dismantling the installation, avoids anticorrosive subassembly to receive external force to destroy and damage to the life of anticorrosive subassembly has been prolonged.

2. The utility model provides an anticorrosive front end housing for shell and tube heat exchanger and manufacturing method thereof, the adoption split type design of end cover body and anticorrosive subassembly, anticorrosive subassembly or end cover body use for a long time and take place after damaging, can separate the two, and anticorrosive subassembly or end cover body that will not damage is recycled, avoids the waste of material to the manufacturing cost of enterprise has been saved, and the combination of end cover body and anticorrosive subassembly makes the device weight greatly reduced, convenient to detach installation moreover.

3. The utility model provides a front end housing for anticorrosion shell-and-tube heat exchanger and manufacturing method thereof, anticorrosive subassembly comprises multilayer function material, outside engineering plastic layer and the inside liquid contact of heat exchanger, can avoid end cover body and heat exchanger liquid contact, thereby the corruption of end cover body has been avoided, be favorable to increasing the life of end cover body, the puigging, the noise of sound-absorbing layer separation heat exchanger inside that can be fine, heat exchanger noise at work has been avoided causing the influence to external environment, the shock to anticorrosive subassembly when the shock attenuation layer effectively alleviates the inside liquid of heat exchanger and flows, thereby make anticorrosive subassembly can be more stable.

Drawings

FIG. 1 is a schematic exploded perspective view of the present invention;

FIG. 2 is a perspective view of the assembled structure of the present invention;

FIG. 3 is an enlarged perspective view of part A of the present invention;

FIG. 4 is a perspective view of the corrosion protection assembly of the present invention;

fig. 5 is a schematic perspective view of the positioning assembly of the present invention.

In the figure: 1. an end cap body; 2. a feed pipe; 3. a discharge pipe; 4. mounting grooves; 5. a gasket; 6. an anti-corrosion component; 601. an outer engineering plastic layer; 602. an inner engineering plastic layer; 603. a sound insulating layer; 604. a shock-absorbing layer; 605. a sound absorbing layer; 7. disassembling the groove; 8. a first limit hole; 9. a first powerful magnet; 10. a positioning assembly; 1001. a load bearing cover; 1002. a second powerful magnet; 1003. a limiting column; 1004. a grabbing groove; 11. a limiting block; 12. a second limiting hole; 13. a guide groove; 14. a feed port; 15. a discharge hole; 16. and (7) installing holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a front end cover for an anti-corrosion shell-and-tube heat exchanger comprises an end cover body 1, a feeding tube 2 and a discharging tube 3, wherein a feeding tube 2 and a discharging tube 3 are respectively fixedly arranged on one side wall of the end cover body 1, an installation groove 4 is formed in one side wall of the end cover body 1, a sealing gasket 5 and an anti-corrosion assembly 6 are respectively arranged inside the installation groove 4, the sealing gasket 5 is positioned between the end cover body 1 and the anti-corrosion assembly 6, a disassembly groove 7 is formed in one side wall of the end cover body 1 in an annular array mode, a first limiting hole 8 is formed in the middle position of the bottom of the disassembly groove 7, a first powerful magnet 9 is fixedly arranged at the bottom of the disassembly groove 7, a positioning assembly 10 is arranged inside the first limiting hole 8, a limiting block 11 is arranged on one side wall inside the installation groove 4, a second limiting hole 12 and a guide groove 13 are respectively formed in one side wall of the anti-corrosion assembly 6, the anti-corrosion assembly 6 comprises an outer engineering plastic layer 601 and an inner engineering plastic layer 602, the outer engineering plastic layer 601 and the inner engineering plastic layer 602 are two components with the same structure, one side wall of the inner engineering plastic layer 602 is fixedly connected with a sound insulation layer 603, one side wall of the sound insulation layer 603 is fixedly connected with a shock absorption layer 604, one side wall of the shock absorption layer 604 is fixedly connected with a sound absorption layer 605, one side wall of the anti-corrosion component 6 is respectively provided with a feed hole 14 and a discharge hole 15, the inner diameters of the feed hole 14 and the discharge hole 15 are respectively the same as the inner diameters of the feed pipe 2 and the discharge pipe 3, and the positions are in one-to-one correspondence, one side wall of the end cover body 1 is provided with a plurality of mounting holes 16 in an annular array manner, the mounting holes 16 are connected with the heat exchanger body through fastening bolts, the limit blocks 11 and the guide grooves 13 are distributed in an annular array manner, the number of the limit blocks 11 is equal to that of the guide grooves 13, and the positions are in one-to-one correspondence, the internal structure of the second limit holes 12 is matched with the first limit holes 8, when the guide groove 13 is matched with the position of the limiting block 11, the second limiting hole 12 corresponds to the hole position of the first limiting hole 8 one by one, the positioning component 10 comprises a bearing cover 1001, the bottom of the bearing cover 1001 is fixedly provided with a second strong magnet 1002, the second strong magnet 1002 and the first strong magnet 9 attract each other when approaching each other, the bottom of the second strong magnet 1002 is fixedly connected with a limiting column 1003, the left side wall and the right side wall of the bearing cover 1001 are respectively provided with a grabbing groove 1004, the structure and the shape of the limiting column 1003 are matched with the first limiting hole 8, the device mainly comprises an end cover body and an anti-corrosion component 6, the end cover body 1 is made of cast iron, the outer part of the anti-corrosion component 6 is made of engineering plastics, the end cover body 1 has the characteristic of hard texture and hard deformation, the anti-corrosion component 6 can be protected in the dismounting and mounting processes, and the anti-corrosion component 6 is prevented from being damaged by external force, thereby prolonging the service life of the anti-corrosion component 6, the end cover body 1 and the anti-corrosion component 6 adopt a split design, after the anti-corrosion component 6 or the end cover body 1 is damaged after long-term use, the anti-corrosion component 6 and the end cover body 1 can be separated, the undamaged anti-corrosion component 6 or the end cover body 1 can be reused, the waste of materials is avoided, thereby saving the manufacturing cost of enterprises, the anti-corrosion component 6 is composed of a plurality of layers of functional materials, the external engineering plastic layer is contacted with the liquid inside the heat exchanger, the end cover body 1 can be prevented from being contacted with the liquid inside the heat exchanger, thereby avoiding the corrosion of the end cover body 1, being beneficial to increasing the service life of the end cover body 1, the sound insulation layer 603 and the sound absorption layer 605 can well obstruct the noise inside the heat exchanger, the influence of the working noise of the heat exchanger on the external environment is avoided, the shock absorption layer 604 effectively relieves the impact on the anti-corrosion component 6 when the liquid inside the heat exchanger flows, thereby enabling the corrosion prevention assembly to be more stable.

The invention also discloses a manufacturing method of the front end cover for the anti-corrosion shell-and-tube heat exchanger, which comprises the following steps:

step one, casting and molding an end cover body: and taking a special die for the end cover body 1, casting the cast iron in a molten state into the die, and taking out the cast iron from the die for later use after cooling and forming.

And step two, casting and molding the positioning component, namely taking the mold of the positioning component 10, casting the cast iron in a molten state into the mold, and taking out the cast iron from the mold for later use after cooling and molding.

Step three, mounting a magnet: and removing the two strong magnets, cutting the strong magnets into shapes and sizes matched with the limiting column 1003 and the dismounting groove 7 respectively by using a cutting tool, and installing the strong magnets into the dismounting groove 7 and the limiting column 1003.

Step four, forming the anticorrosive assembly: the composite process is adopted to convey a plurality of materials of the outer engineering plastic layer 601, the inner engineering plastic layer 602, the sound insulation layer 603, the shock absorption layer 604 and the sound absorption layer 605 to a compression molding machine to be manufactured into a composite board, and a cutting machine is used to cut the size matched with the inner cavity of the mounting groove 4.

Step five, assembling and forming: firstly, the sealing gasket 5 is installed in the installation groove 4, then the guide groove 13 of the outer wall of the anti-corrosion assembly 6 is aligned with the limiting block 11, the guide groove 13 is clamped with the limiting block 11, meanwhile, the position of each second limiting hole 12 corresponds to the position of the first limiting hole 8, and at the moment, the positioning assembly 10 is inserted into the first limiting hole 8 and the second limiting hole 12, so that the assembly is completed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.