CN214199784U

CN214199784U - Anti-corrosion heat exchanger

Info

Publication number: CN214199784U
Application number: CN202022166561.2U
Authority: CN
Inventors: 不公告发明人
Original assignee: Jiujiang Jiuhong New Material Co ltd
Current assignee: Jiujiang Jiuhong New Material Co ltd
Priority date: 2020-09-27
Filing date: 2020-09-27
Publication date: 2021-09-14
Anticipated expiration: 2030-09-27

Abstract

The utility model discloses an anti-corrosion heat exchanger, which comprises a shell, wherein both sides of the shell are fixedly connected with tube plates, both sides of the tube plates are fixedly connected with tube boxes, the bottom of the shell is fixedly connected with a support, the bottom of the right side of the shell is connected with a first connecting tube in a penetrating way, the left side of the top of the shell is connected with a second connecting tube in a penetrating way, the top of the tube boxes is connected with a third connecting tube in a penetrating way, the bottom of the tube boxes is connected with a fourth connecting tube in a penetrating way, two walls of the tube plates are connected with a heat transfer tube in a penetrating way, a baffle plate is sleeved on the outer ring of the heat transfer tube, a filter screen is fixedly connected with the inner cavity of the first connecting tube, a water purifying layer is arranged in the inner cavity of the first connecting tube, hook rings are clamped at the top and the bottom of the left side of the tube plates, the left side of the hook rings is fixedly connected with a floating head cover, and the main body of the heat exchanger is made of anti-corrosion stainless steel material, the corrosion resistance of the heat exchanger is enhanced, and the heat transfer pipe adopts the design of a spiral pipe, so that the heat transfer area can be enlarged during cold and heat exchange.

Description

Anti-corrosion heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field specifically is an anticorrosion heat exchanger.

Background

The heat exchanger is a device for transferring part of heat of hot fluid to cold fluid, and is also called 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, is widely applied, is energy-saving equipment for realizing heat transfer between materials between two or more than two fluids with different temperatures, transfers heat from the fluid with higher temperature to the fluid with lower temperature to ensure that the temperature of the fluid reaches the index specified by a process so as to meet the requirements of process conditions, and is one of main equipment for improving the energy utilization rate, but the existing heat exchanger usually has a corrosion phenomenon, the corrosion of the heat exchanger is mainly impure by water quality, more ferroferric oxide can be generated to cause the corrosion of an inner cavity of the heat exchanger so as to reduce the service life of the heat exchanger, and the inner wall of a water side pipe of the heat exchanger mostly has the phenomena of pitting corrosion and hole corrosion, the phenomenon is mostly caused by the condition that scales or other attachments are not uniformly covered, and the generated corrosion phenomenon mainly comprises electrode corrosion, so that the aggravation of the corrosion phenomenon of the heat exchanger is increased, and the service life of the heat exchanger is seriously influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an anticorrosion heat exchanger to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an anticorrosion heat exchanger, includes the casing, the equal fixedly connected with tube sheet in both sides of casing, the both sides fixedly connected with pipe case of tube sheet, the bottom fixedly connected with support of casing, the bottom through connection on casing right side has first takeover, the left side through connection at casing top has the second to take over, the top through connection of pipe case has the third to take over, the bottom through connection of pipe case has the fourth to take over, two walls through connection of tube sheet have the heat-transfer pipe, the baffling board has been cup jointed to the outer lane of heat-transfer pipe, the inner chamber fixedly connected with filter screen of first takeover, the water purification layer is installed to the inner chamber of first takeover, the left top of tube sheet and bottom joint have the hook, the left side fixedly connected with floating head lid of hook.

Preferably, the outer ring of the tube plate is provided with a threaded hole, and the two walls of the tube plate are fixedly connected with the two walls of the tube box through nuts.

Preferably, the heat transfer pipe penetrates through two walls of the pipe plate and extends to the inner cavity of the shell, and the outer ring of the heat transfer pipe is fixedly connected with the baffle plate through a heat seal technology.

Preferably, the water purification layer is mainly water purification material active carbon, and the filter screen is a high-precision stainless steel mesh.

Preferably, the inner ring of the hook ring is provided with a groove, and the outer ring of the tube plate is matched with the groove of the hook ring.

Preferably, the left side of the floating head cover is sleeved in an inner cavity of the tube box, and the right side of the floating head cover is fixedly connected with the edge of the left wall of the hook ring through a flange.

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

1. the anti-corrosion heat exchanger is characterized in that a filter screen and a water purification layer are additionally arranged in an inner cavity of a first connecting pipe, activated carbon in the filter screen and the water purification layer can help most impurities in cooling water entering from the first connecting pipe to improve the purity of water quality and reduce the generation of ferroferric oxide in a heat transfer pipe and the corrosion phenomenon of the heat exchanger caused by the water quality, a main body of the heat exchanger is made of anti-corrosion stainless steel materials and is used for enhancing the corrosion resistance degree of the heat exchanger, the heat transfer pipe is made of a spiral pipe design and can enlarge the heat transfer area during cold and heat exchange and improve the flow rate of running water, so that the running water sedimentation can be reduced, namely, the phenomena of pitting corrosion and hole corrosion of the inner wall of the water side pipe are reduced, one end of the heat transfer pipe is fixed on a fixed pipe plate, the pipe plate is clamped between a shell flange and a pipe box flange and is connected by bolts, and the other end of the heat transfer pipe is fixed on a floating head pipe plate, the floating head tube plate is connected with the floating head cover through bolts to form a floating head which can freely move in the shell, and because the shell and the tube bundle are not mutually constrained, even if the temperature difference between two fluids is larger, the temperature difference stress cannot be generated in the tube, the shell and the tube plate, and the heat exchanger is helped to exchange heat stably.

Drawings

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

FIG. 2 is a schematic view showing the positions of the tube plate and the heat transfer tube according to the present invention;

FIG. 3 is a schematic structural section view of the present invention;

fig. 4 is a schematic diagram of the positions of the hook ring and the floating head cover of the present invention.

In the figure: the device comprises a shell 1, a tube plate 2, a tube box 3, a support 4, a first connecting tube 5, a second connecting tube 6, a third connecting tube 7, a fourth connecting tube 8, a heat transfer tube 9, a baffle plate 10, a filter screen 11, a water purification layer 12, a hook ring 13 and a floating head cover 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: an anti-corrosion heat exchanger comprises a shell 1, wherein tube plates 2 are fixedly connected to two sides of the shell 1, tube boxes 3 are fixedly connected to two sides of the tube plates 2, a support 4 is fixedly connected to the bottom of the shell 1, a first connecting tube 5 is connected to the bottom of the right side of the shell 1 in a penetrating manner, a second connecting tube 6 is connected to the left side of the top of the shell 1 in a penetrating manner, a third connecting tube 7 is connected to the top of the tube boxes 3 in a penetrating manner, a fourth connecting tube 8 is connected to the bottom of the tube boxes 3 in a penetrating manner, a heat transfer tube 9 is connected to two walls of the tube plates 2 in a penetrating manner, a baffle plate 10 is sleeved on the outer ring of the heat transfer tube 9, a filter screen 11 is fixedly connected to the inner cavity of the first connecting tube 5, a water purifying layer 12 is installed in the inner cavity of the first connecting tube 5, hook rings 13 are clamped to the top and the bottom of the left side of the tube plates 2, a floating head cover 14 is fixedly connected to the left side of the hook rings 13, threaded holes are formed in the outer ring of the tube plates 2, two walls of the tube plates 2 are fixedly connected with two walls of the tube boxes 3 through nuts, the heat transfer pipe 9 runs through two walls of the pipe plate 2 and extends to an inner cavity of the shell 1, an outer ring of the heat transfer pipe 9 is fixedly connected with the baffle plate 10 through a heat seal technology, a water purification layer 12 is mainly made of water purification material active carbon, the filter screen 11 is made of high-precision stainless steel mesh, an inner ring of the hook ring 13 is provided with a groove, an outer ring of the pipe plate 2 is matched with the groove of the hook ring 13, the left side of the floating head cover 14 is sleeved in the inner cavity of the pipe box 3, and the right side of the floating head cover 14 is fixedly connected with the edge of the left wall of the hook ring 13 through a flange.

The working principle is as follows: the fluid A flows into the shell from the first connecting pipe 5, flows out from the second connecting pipe 6 through the pipe space, the fluid B flows in from the third connecting pipe 7, flows out from the fourth connecting pipe 8 through the pipe, and if the temperature of the fluid A is higher than that of the fluid B, heat is transferred to the fluid B from the fluid A through the pipe wall; on the contrary, the fluid B is transmitted to the fluid A through the pipe wall, a filter screen 11 and a water purification layer 12 are additionally arranged in the inner cavity of the first connecting pipe 5, the activated carbon in the filter screen 11 and the water purification layer 12 can help to improve the purity of water quality and reduce the generation of ferroferric oxide in the heat transfer pipe, the corrosion phenomenon of the heat exchanger caused by the water quality is reduced, the main body of the heat exchanger is made of anti-corrosion stainless steel materials and is used for enhancing the corrosion resistance degree of the heat exchanger, the heat transfer pipe 9 is made of a spiral pipe design, the heat transfer area can be enlarged during cold and heat exchange, the flow rate of flowing water is improved, and therefore the flowing water sedimentation can be reduced, namely, the phenomena of pitting corrosion and hole corrosion of the inner wall of the water side pipe are reduced, one end of the heat transfer pipe 9 is fixed on a fixed pipe plate 2, and the pipe plate 2 is clamped between the flange of the shell 1 and the flange of the pipe box 3, the other end of the heat transfer pipe 9 is fixed on the floating head pipe plate 2 by bolts, the floating head pipe plate 3 is connected with the floating head cover 14 by bolts, a floating head which can move freely in the shell 1 is formed, and because the shell 1 and the pipe bundle are not mutually restricted, even if the temperature difference between the two fluids is larger, the temperature difference stress can not be generated in the heat transfer pipe 9, the shell 1 and the pipe plate 2, and the heat exchanger is helped to exchange heat power stably.

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.

Claims

1. An anti-corrosion heat exchanger comprising a housing (1), characterized in that: the heat exchanger is characterized in that tube plates (2) are fixedly connected to two sides of a shell (1), tube boxes (3) are fixedly connected to two sides of the tube plates (2), a support (4) is fixedly connected to the bottom of the shell (1), a first connecting tube (5) is connected to the bottom of the right side of the shell (1) in a penetrating manner, a second connecting tube (6) is connected to the left side of the top of the shell (1) in a penetrating manner, a third connecting tube (7) is connected to the top of the tube boxes (3) in a penetrating manner, a fourth connecting tube (8) is connected to the bottom of the tube boxes (3) in a penetrating manner, heat transfer tubes (9) are connected to two walls of the tube plates (2) in a penetrating manner, baffle plates (10) are sleeved on outer rings of the heat transfer tubes (9), a filter screen (11) is fixedly connected to inner cavities of the first connecting tubes (5), a water purification layer (12) is installed in inner cavities of the first connecting tubes (5), and hook rings (13) are clamped to the top and the bottom of the left side of the tube plates (2), the left side of the hook ring (13) is fixedly connected with a floating head cover (14).

2. An anti-corrosion heat exchanger according to claim 1, characterized in that: the outer ring of the tube plate (2) is provided with a threaded hole, and two walls of the tube plate (2) are fixedly connected with two walls of the tube box (3) through nuts.

3. An anti-corrosion heat exchanger according to claim 1, characterized in that: the heat transfer pipe (9) penetrates through two walls of the pipe plate (2) and extends to an inner cavity of the shell (1), and an outer ring of the heat transfer pipe (9) is fixedly connected with the baffle plate (10) through a heat seal technology.

4. An anti-corrosion heat exchanger according to claim 1, characterized in that: the water purification layer (12) is mainly water purification material active carbon, and the filter screen (11) is a high-precision stainless steel mesh.

5. An anti-corrosion heat exchanger according to claim 1, characterized in that: the inner ring of the hook ring (13) is provided with a groove, and the outer ring of the tube plate (2) is matched with the groove of the hook ring (13).

6. An anti-corrosion heat exchanger according to claim 1, characterized in that: the left side of the floating head cover (14) is sleeved in the inner cavity of the channel box (3), and the right side of the floating head cover (14) is fixedly connected with the edge of the left wall of the hook ring (13) through a flange.