CN215639013U

CN215639013U - Sealing structure of three-phase heat exchanger

Info

Publication number: CN215639013U
Application number: CN202121452310.9U
Authority: CN
Inventors: 郑文静; 崔学伟
Original assignee: Jiangsu Shengtai Chemical Technology Co ltd
Current assignee: Jiangsu Shengtai Chemical Technology Co ltd
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2022-01-25
Anticipated expiration: 2031-06-29

Abstract

The utility model designs a sealing structure of a three-phase heat exchanger, which comprises: the tube pass inner cylinder is sequentially divided into an upper tube pass cavity tube array, a middle cavity body and a lower tube pass cavity tube array from top to bottom, tube plates are arranged at the upper end and the lower end of the middle cavity body, and the two sides of each tube plate are connected through flanges. An upper flat cover and a lower flat cover are respectively installed at the upper end and the lower end of the pressure-bearing shell through studs, the studs are fixed through nuts, the lower end of the tube pass inner cylinder extends into the lower flat cover, a shell tube pass static seal is arranged at the joint, the bottom of the lower flat cover is connected with a threaded side diameter tube through a first threaded flange, threaded connecting tubes are installed on the upper side and the lower side of the pressure-bearing shell and the upper side and the lower side of the middle cavity body through second threaded flanges, and gap feeding and discharging ports are arranged at positions of the tube pass inner cylinder corresponding to the threaded connecting tubes. The utility model has convenient maintenance and good sealing performance.

Description

Sealing structure of three-phase heat exchanger

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a sealing structure of a three-phase heat exchanger.

Background

The heat exchanger is equipment for transferring partial heat of hot fluid to cold fluid, also called heat exchanger, the heat exchanger plays an important role in chemical industry, petroleum, power, food and other industrial production, the heat exchanger can be used as a heater, a cooler, an evaporator, a reboiler and the like in chemical production, and the application is wide. There are many kinds of heat exchangers, and a three-phase heat exchanger is one of them.

The three-phase heat exchanger can cause the influence to production environment and staff because the leakproofness is not good and revealing of gas appears in daily use, consequently needs provide a three-phase heat exchanger's seal structure, can accomplish again can conveniently overhaul when the leakproofness is good.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a sealing structure of a three-phase heat exchanger to solve the problems set forth in the background art.

In order to solve the above problems, the present invention provides the following technical solutions: a sealing structure of a three-phase heat exchanger, comprising: the tube pass inner cylinder is sleeved in the pressure-bearing shell, a sliding seal is adopted between the tube pass inner cylinder and the pressure-bearing shell, a middle cavity body is arranged in the middle of the tube pass inner cylinder, tube plates are arranged at the upper end and the lower end of the middle cavity body, the peripheries of the tube plates are connected through flanges, and a plurality of tube pass cavity tube arrays penetrating through the tube plates are uniformly distributed in the tube pass inner cylinder.

The upper flat cover and the lower flat cover are respectively installed at the upper end and the lower end of the pressure-bearing shell through the studs, the studs are fixed through the nuts, spherical washers are arranged at the contact positions of the studs and the nuts, the lower end of the tube side inner tube extends into the lower flat cover, shell tube side static seals are arranged at the connection positions of the lower flat cover and the lower flat cover, the bottom of the lower flat cover is connected with a threaded side diameter tube through a first threaded flange, threaded connecting tubes are installed on the upper side and the lower side of the pressure-bearing shell and the upper side and the lower side of the middle cavity body respectively through a second threaded flange, and gap feeding and discharging ports are formed in the positions of the tube side inner tubes corresponding to the threaded connecting tubes.

Preferably, the pipeline is arranged on one side of the upper flat cover and one side of the lower flat cover, blind plates are arranged on the openings of the pipeline through step-end studs, and the step-end studs are fixed through nuts.

Preferably, the inner side of the blind plate is provided with a non-porous lens pad.

Preferably, the top of the tube side inner barrel is connected with a corrugated tube, and the corrugated tube penetrates through the upper flat cover and extends to the outside to be connected with the threaded edge diameter tube.

Preferably, the outer wall of the corrugated pipe is connected with the upper flat cover through a flange.

Preferably, an ear type support is installed outside the lower portion of the pressure-bearing shell, and a grounding plate is arranged at the bottom of the ear type support.

Preferably, a perforated lens pad is arranged at the contact position of the threaded edge diameter pipe and the lower flat cover.

Preferably, a plurality of lifting ring screws are distributed above the upper flat cover, and cover opening screws are further mounted on one side of the upper flat cover.

Compared with the prior art, the utility model has the beneficial effects that:

the tube side inner cylinder is divided into an upper tube side and a lower tube side of a middle cavity body, the middle cavity body is connected into a whole, a gas-liquid mixed high-temperature fatty alcohol and other materials are filled in a tube side cavity array tube, the materials have a secondary distribution function through the middle cavity body, cold hydrogen is filled in the upper shell side, the materials in the upper tube side cavity array tube are heated, cold liquid fatty acid methyl ester liquid is filled in the lower shell side, the materials in the lower tube side cavity array tube are heated, heat exchange is carried out on the three different phase materials, and the energy utilization rate is improved.

The tube pass inner cylinder is sleeved inside the pressure-bearing shell, an assembled structure is adopted, and high-temperature-resistant sliding sealing is adopted between the tube pass inner cylinder and the pressure-bearing shell, so that the sealing tolerance between the whole tube pass inner cylinder and the pressure-bearing shell and between the upper shell pass and the lower shell pass can reach more than 1.3Mpa, and the inner cylinder is conveniently dismounted and overhauled by using a lifting ring screw and a cover opening screw while the sealing performance is good.

The utility model has the advantages of good sealing performance, convenient disassembly and maintenance, high energy utilization rate and the like.

Drawings

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

FIG. 2 is a schematic view of the enlarged structure of part A of the present invention.

In the figure: the structure comprises a threaded edge diameter tube 1, a first threaded flange 2, a lower flat cover 3, a perforated lens pad 4, a gap feeding and discharging port 5, a tube shell side static seal 6, a grounding plate 7, an ear type support 8, a second threaded flange 9, a threaded connecting tube 10, a tube side cavity array tube 11, a middle cavity body 12, a tube plate 13, a non-perforated lens pad 14, a pressure-bearing shell 15, a tube side inner tube 16, an upper flat cover 17, a spherical gasket 18, a lifting ring screw 19, a cover opening screw 20, a corrugated tube 21, a blind plate 22 and a stud at a 23-step end.

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 present application, 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. Other embodiments, which can be derived by those skilled in the art from the embodiments given herein without inventive faculty, are within the scope of the utility model.

As shown in the figure, the present invention provides a technical solution: a sealing structure of a three-phase heat exchanger, comprising: the pressure-bearing shell 15 and the tube pass inner cylinder 16, the tube pass inner cylinder 16 is sleeved in the pressure-bearing shell 15, the tube pass inner cylinder 16 and the pressure-bearing shell 15 are in sliding seal, the sliding seal is made of a high-temperature-resistant, anti-corrosion and corrosion-resistant material, so that the sealing tolerance between the whole tube pass inner cylinder 16 and the pressure-bearing shell 15 and between the upper shell pass and the lower shell pass can reach more than 1.3Mpa, the lifting ring screw 19 and the cover opening screw 20 are utilized while the sealing performance is good, the tube pass inner cylinder 16 is conveniently lifted out for maintenance through disassembly, and the problems of movement and sealing are effectively solved. The middle part of the tube pass inner cylinder 16 is provided with a middle cavity body 12, the upper end and the lower end of the middle cavity body 12 are both provided with tube plates 13, the peripheries of the tube plates 13 are connected through flanges, a plurality of tube pass cavity tube arrays 11 penetrating the tube plates 13 are uniformly distributed in the tube pass inner cylinder 16, and the upper end and the lower end of each tube pass cavity tube array 11 extend to the upper end and the lower end of the tube pass inner cylinder 16. The top of the tube side inner cylinder 16 is connected with a corrugated tube 21, and the corrugated tube 21 passes through the upper flat cover 17 and extends to the outside to be connected with the threaded side diameter tube 1. The outer wall of the corrugated pipe 21 is connected with the upper flat cover 17 through a flange.

The upper flat cover 17 and the lower flat cover 3 are respectively arranged at the upper end part and the lower end part of the pressure-bearing shell 15 through studs, the studs are fixed through nuts, spherical washers 18 are arranged at the contact positions of the studs and the nuts, the lower end part of the tube pass inner tube 16 extends into the lower flat cover 3, a shell tube pass static seal 6 is arranged at the connection position, the whole thermal expansion extends upwards, and the stress is eliminated through the elasticity of the corrugated tube 21 at the top. The bottom of the lower flat cover 3 is connected with a threaded side diameter pipe 1 through a first threaded flange 2, and a porous lens pad 4 is arranged at the contact position of the threaded side diameter pipe 1 and the lower flat cover 3. The upper side and the lower side of the pressure-bearing shell 15 and the upper side and the lower side of the middle cavity body 12 are respectively provided with a screwed connection pipe 10 through a second screwed flange 9, and the positions of the tube pass inner cylinders 16 corresponding to the screwed connection pipes 10 are respectively provided with a gap feeding and discharging opening 5. And pipelines are arranged on one sides of the upper flat cover 17 and the lower flat cover 3, blind plates 22 are arranged at the openings of the pipelines through step-end studs 23, and the step-end studs 23 are fixed through nuts. The blind plate 22 is provided with a non-porous lens pad 14 on the inside. An ear type support 8 is arranged outside the lower part of the pressure-bearing shell 15, and a grounding plate 7 is arranged at the bottom of the ear type support 8.

The working principle of the utility model is as follows: as shown in the figure, the top end a of the tube pass inner tube 16 is an inlet for fatty alcohol and the like, the lower end d is an outlet for fatty alcohol and the like, the nipple 10g is an inlet for fatty acid methyl ester, the nipple 10b is an outlet for fatty acid methyl ester, the nipple 10c is an inlet for hydrogen, and the nipple 10f is an outlet for hydrogen. Therefore, materials such as liquid mixed high-temperature fatty alcohol are ventilated from the top end a of the tube pass inner cylinder 16 to the tube pass cavity array tube 11, cold fatty acid methyl ester liquid is led into the lower shell pass from the nipple 10g to circulate, and cold hydrogen is led into the upper shell pass from the nipple 10c to circulate, so that heat exchange is carried out on three substances in different phases, and the energy utilization rate is improved.

Although the utility model has been described in terms of the above specific embodiments, the inventive concept is not limited to the present invention, and any modifications using the inventive concept are intended to be included within the scope of the appended claims.

Claims

1. A sealing structure of a three-phase heat exchanger, comprising: pressure-bearing shell (15) and tube side inner tube (16), its characterized in that: the tube pass inner cylinder (16) is sleeved in the pressure-bearing shell (15), the tube pass inner cylinder (16) and the pressure-bearing shell (15) are sealed in a sliding mode, a middle cavity body (12) is arranged in the middle of the tube pass inner cylinder (16), tube plates (13) are arranged at the upper end and the lower end of the middle cavity body (12), the peripheries of the tube plates (13) are connected through flanges, and a plurality of tube pass cavity tubes (11) penetrating through the tube plates (13) are uniformly distributed in the tube pass inner cylinder (16);

the upper flat cover (17) and the lower flat cover (3) are installed at the upper end portion and the lower end portion of the pressure-bearing shell (15) through the studs respectively, the studs are fixed through the nuts, spherical washers (18) are arranged at the contact positions of the studs and the nuts, the lower end portions of the tube pass inner tubes (16) extend into the lower flat covers (3), tube pass static seals (6) are arranged at the connection positions, the bottoms of the lower flat covers (3) are connected with the threaded edge diameter tubes (1) through first threaded flanges (2), threaded connecting tubes (10) are installed at the upper sides and the lower sides of the pressure-bearing shell (15) and the upper sides and the lower sides of the middle cavity body (12) respectively through second threaded flanges (9), and gaps are arranged at the positions of the tube pass inner tubes (16) corresponding to the threaded connecting tubes (10).

2. A sealing structure of a three-phase heat exchanger according to claim 1, characterized in that: go up flat lid (17) and lower flat lid (3) one side and all be equipped with the pipeline, blind plate (22) are all installed through order end stud (23) to the pipeline mouth, order end stud (23) are fixed through the nut.

3. A sealing structure of a three-phase heat exchanger according to claim 2, characterized in that: the inner side of the blind plate (22) is provided with a non-porous lens pad (14).

4. A sealing structure of a three-phase heat exchanger according to claim 1, characterized in that: the top of the tube side inner cylinder (16) is connected with a corrugated tube (21), and the corrugated tube (21) penetrates through the upper flat cover (17) to extend to the outside to be connected with the threaded side diameter tube (1).

5. A sealing structure of a three-phase heat exchanger according to claim 4, characterized in that: the outer wall of the corrugated pipe (21) is connected with the upper flat cover (17) through a flange.

6. A sealing structure of a three-phase heat exchanger according to claim 1, characterized in that: an ear type support (8) is installed on the outer portion below the pressure-bearing shell (15), and a grounding plate (7) is arranged at the bottom of the ear type support (8).

7. A sealing structure of a three-phase heat exchanger according to claim 1, characterized in that: and a perforated lens pad (4) is arranged at the contact position of the threaded edge diameter pipe (1) and the lower flat cover (3).

8. A sealing structure of a three-phase heat exchanger according to claim 1, characterized in that: a plurality of lifting ring screws (19) are arranged above the upper flat cover (17), and an opening cover screw (20) is further installed on one side of the upper flat cover.