CN214276609U

CN214276609U - Shell and tube heat exchanger

Info

Publication number: CN214276609U
Application number: CN202023271416.7U
Authority: CN
Inventors: 房玉林; 王太平; 房立飞
Original assignee: Shandong Linan Thermal Technology Co ltd
Current assignee: Shandong Linan Thermal Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-09-24
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a shell-and-tube heat exchanger, which comprises a first fixed seat and a second fixed seat, wherein the outer sides of the first fixed seat and the second fixed seat are fixedly connected with a plurality of thread limiting sleeves, a stainless steel straight pipe is respectively sleeved between the thread limiting sleeves, and the outer sides of the thread limiting sleeves are respectively screwed with a nut fixing sleeve corresponding to the stainless steel straight pipe; the inner sides of the first fixing seat and the second fixing seat are fixedly connected with a first inner bushing and a second inner bushing respectively, and a top heat-insulating cover and a bottom heat-insulating cover are mounted at the top and the bottom between the first inner bushing and the second inner bushing respectively. The utility model discloses in, this kind of shell and tube heat exchanger not only the design has the heating structure of ventilating, has still designed insulation construction, both can utilize the cold water of steam waste heat in to the stainless steel straight tube to carry out the rapid heating, also can be simultaneously to not fully refrigerated steam conduction to outside between the heat preservation to the realization plays the heat preservation effect to the insulation pipe cover, is worth wideling popularize.

Description

Shell and tube heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field especially relates to a shell and tube heat exchanger.

Background

The heat exchanger is a heat exchanger energy-saving equipment for realizing heat transfer between materials between two or more than two kinds of fluids with different temperatures, which is one of main equipment for transferring heat from the fluid with higher temperature to the fluid with lower temperature to make the temperature of the fluid reach the index specified by the process so as to meet the requirements of process conditions and improve the energy utilization rate. For example, the polytetrafluoroethylene heat exchanger for low temperature of a power plant is a novel device for recovering waste heat of the power plant for reducing the temperature of exhaust smoke. The fluoroplastic heat exchanger can prevent acid corrosion and reduce the temperature of flue gas to be within 100 ℃, and a shell-and-tube heat exchanger is a large-volume and various product, so that a new wear-resistant, corrosion-resistant and high-strength material is urgently needed. China has different degrees of progress in developing stainless steel-copper alloy composite materials, aluminum-magnesium alloys, silicon carbide and other non-metallic materials, and particularly develops titanium materials quickly.

The heat exchanger is a common device for heat exchange, and the shell-and-tube heat exchanger is also one type of heat exchanger, but the structural design of the existing device has certain defects, the structural design of the existing shell-and-tube heat exchanger is too simple, in the process of actual use, the utilization efficiency of waste heat is not high, the heat preservation effect is poor, the heat dissipation is fast, and therefore a new shell-and-tube heat exchanger is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a shell-and-tube heat exchanger.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a shell-and-tube heat exchanger comprises a first fixed seat and a second fixed seat, wherein the outer sides of the first fixed seat and the second fixed seat are fixedly connected with a plurality of threaded limiting sleeves, stainless steel straight tubes are sleeved among a plurality of groups of threaded limiting sleeves, and nut fixing sleeves corresponding to the stainless steel straight tubes are screwed on the outer sides of the plurality of threaded limiting sleeves;

the inner sides of the first fixed seat and the second fixed seat are respectively and fixedly connected with a first inner bushing and a second inner bushing, the top and the bottom between the first inner bushing and the second inner bushing are respectively provided with a top heat-insulating cover and a bottom heat-insulating cover, and the front end and the rear end between the top heat-insulating cover and the bottom heat-insulating cover are respectively and fixedly connected through a plurality of fixing bolts;

the heat preservation cover comprises a first fixing seat and a second fixing seat, wherein heat preservation pipe sleeves corresponding to a plurality of stainless steel straight pipes are fixedly connected between the first fixing seat and the second fixing seat, an air inlet pipe and an air outlet pipe are fixedly connected to two sides of the bottom heat preservation cover respectively, and an air vent is formed in one side of the top of each heat preservation pipe sleeve.

As a further description of the above technical solution:

a plurality of round holes corresponding to the stainless steel straight pipes are formed in the centers of the first fixing seat and the second fixing seat.

As a further description of the above technical solution:

and the two ends of the stainless steel straight pipes penetrate through the corresponding round holes of the multiple groups and extend to the outer sides of the first fixing seat and the second fixing seat respectively.

As a further description of the above technical solution:

and rubber protective sleeves corresponding to the top heat-insulating cover and the bottom heat-insulating cover are fixedly connected to the outer sides of the first inner bushing and the second inner bushing.

As a further description of the above technical solution:

the heat-insulating pipe sleeve is arranged in a cylindrical structure, and two ends of the heat-insulating pipe sleeve are fixedly connected with the first fixing seat and the second fixing seat respectively.

As a further description of the above technical solution:

the top end of the air inlet pipe penetrates through the bottom heat-insulation cover and the heat-insulation pipe sleeve and is communicated with the heat-insulation pipe sleeve.

The utility model discloses following beneficial effect has: 1. the utility model provides a pair of shell and tube heat exchanger compares with traditional device, the device simple structure, convenient and practical through the simple waste heat utilization structure of design, can fully realize the utilization of steam waste heat, has improved the utilization efficiency of waste heat to make its work efficiency obtain improving greatly.

2. Compared with the traditional device, the device has great innovation and improvement in structure and design, the shell-and-tube heat exchanger is not only designed with a ventilating and heating structure, but also designed with a heat insulation structure, cold water in the stainless steel straight tube can be rapidly heated by utilizing steam waste heat, and steam which is not completely cooled can be conducted to the outside heat insulation layer, so that the heat insulation effect on the heat insulation pipe sleeve is realized, and the shell-and-tube heat exchanger is worthy of great popularization.

Drawings

Fig. 1 is a front view structural diagram of a shell-and-tube heat exchanger according to the present invention;

fig. 2 is a cross-sectional structural view of a shell-and-tube heat exchanger according to the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

Illustration of the drawings:

1. a first fixed seat; 2. a second fixed seat; 3. a threaded stop collar; 4. a stainless steel straight pipe; 5. a nut fixing sleeve; 6. a first inner liner; 7. a second inner liner; 8. a top heat-insulating cover; 9. a bottom heat-insulating cover; 10. a rubber protective sleeve; 11. fixing the bolt; 12. a heat preservation pipe sleeve; 13. an air inlet pipe; 14. an exhaust pipe; 15. and (4) a vent hole.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a shell-and-tube heat exchanger comprises a first fixed seat 1 and a second fixed seat 2, wherein the outer sides of the first fixed seat 1 and the second fixed seat 2 are fixedly connected with a plurality of threaded limiting sleeves 3, stainless steel straight tubes 4 are sleeved among a plurality of groups of threaded limiting sleeves 3, and nut fixing sleeves 5 corresponding to the stainless steel straight tubes 4 are screwed on the outer sides of the plurality of threaded limiting sleeves 3;

the inner sides of the first fixed seat 1 and the second fixed seat 2 are respectively and fixedly connected with a first inner bushing 6 and a second inner bushing 7, a top heat-insulating cover 8 and a bottom heat-insulating cover 9 are respectively arranged at the top and the bottom between the first inner bushing 6 and the second inner bushing 7, and the front end and the rear end between the top heat-insulating cover 8 and the bottom heat-insulating cover 9 are fixedly connected through a plurality of fixing bolts 11;

fixedly connected with and the corresponding heat preservation pipe box 12 of a plurality of stainless steel straight tube 4 between first fixing base 1 and the second fixing base 2, the both sides of bottom heat preservation cover 9 bottom are fixedly connected with intake pipe 13 and blast pipe 14 respectively, air vent 15 has been seted up to one side at heat preservation pipe box 12 top, air vent 15 has been seted up through one side at heat preservation pipe box 12 top, thereby make the high temperature steam that gets into in heat preservation pipe box 12 through intake pipe 13 after carrying out the heat exchange, can flow out through air vent 15, thereby get into between top heat preservation cover 8 and the bottom heat preservation cover 9, thereby realize playing the heat preservation effect to heat preservation pipe box 12, thereby improve the utilization efficiency of waste heat.

A plurality of round holes corresponding to the stainless steel straight pipes 4 are formed in the centers of the first fixing seat 1 and the second fixing seat 2.

The both ends of a plurality of stainless steel straight tubes 4 all run through the round hole that the multiunit corresponds to extend to the outside of first fixing base 1 and second fixing base 2 respectively.

The outer sides of the first inner bushing 6 and the second inner bushing 7 are fixedly connected with rubber protective sleeves 10 corresponding to the top heat-insulating cover 8 and the bottom heat-insulating cover 9, and the rubber protective sleeves 10 can play a role in preventing leakage for the top heat-insulating cover 8 and the bottom heat-insulating cover 9.

The heat preservation pipe sleeve 12 is arranged in a cylindrical structure, and two ends of the heat preservation pipe sleeve 12 are fixedly connected with the first fixing seat 1 and the second fixing seat 2 respectively.

The top of intake pipe 13 runs through bottom heat preservation cover 9 and heat preservation pipe box 12 to link up each other with heat preservation pipe box 12, run through bottom heat preservation cover 9 and heat preservation pipe box 12 through the top that makes intake pipe 13, and link up each other with heat preservation pipe box 12, thereby make the high temperature steam in the intake pipe 13 can get into heat preservation pipe box 12 smoothly, thereby heat the cold water that lets in among a plurality of stainless steel straight tubes 4, thereby realize thermal exchange.

The working principle is as follows: the utility model provides a shell and tube heat exchanger has great improvement innovation with traditional device, when using this shell and tube heat exchanger, the both sides of bottom heat preservation cover 9 bottom are fixedly connected with intake pipe 13 and blast pipe 14 respectively, through making the top of intake pipe 13 run through bottom heat preservation cover 9 and heat preservation pipe box 12, and link up each other with heat preservation pipe box 12, thereby make the high temperature steam in intake pipe 13 can get into in heat preservation pipe box 12 smoothly, thereby heat the cold water that lets in a plurality of stainless steel straight tubes 4, thereby realize the exchange of heat, one side at heat preservation pipe box 12 top has seted up air vent 15, through having seted up air vent 15 at one side at heat preservation pipe box 12 top, thereby make the high temperature steam that gets into in heat preservation pipe box 12 through intake pipe 13 after carrying out the heat exchange, can flow out through air vent 15, thereby get into between top heat preservation cover 8 and bottom heat preservation cover 9, thereby realizing the heat preservation effect on the heat preservation pipe sleeve 12 and improving the utilization efficiency of the waste heat.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a shell and tube heat exchanger, includes first fixing base (1) and second fixing base (2), its characterized in that: the outer sides of the first fixed seat (1) and the second fixed seat (2) are fixedly connected with a plurality of threaded limiting sleeves (3), stainless steel straight pipes (4) are sleeved among a plurality of groups of threaded limiting sleeves (3), and nut fixing sleeves (5) corresponding to the stainless steel straight pipes (4) are screwed on the outer sides of the plurality of threaded limiting sleeves (3);

the inner sides of the first fixing seat (1) and the second fixing seat (2) are respectively and fixedly connected with a first inner bushing (6) and a second inner bushing (7), the top and the bottom between the first inner bushing (6) and the second inner bushing (7) are respectively provided with a top heat-insulating cover (8) and a bottom heat-insulating cover (9), and the front end and the rear end between the top heat-insulating cover (8) and the bottom heat-insulating cover (9) are fixedly connected through a plurality of fixing bolts (11);

the stainless steel straight pipe heat preservation cover is characterized in that a heat preservation pipe sleeve (12) corresponding to a plurality of stainless steel straight pipes (4) is fixedly connected between the first fixing seat (1) and the second fixing seat (2), an air inlet pipe (13) and an air outlet pipe (14) are fixedly connected to the two sides of the bottom heat preservation cover (9) respectively, and an air vent (15) is formed in one side of the top of the heat preservation pipe sleeve (12).

2. A shell and tube heat exchanger according to claim 1, wherein: a plurality of round holes corresponding to the stainless steel straight pipes (4) are formed in the centers of the first fixing seat (1) and the second fixing seat (2).

3. A shell and tube heat exchanger according to claim 2, wherein: a plurality of the two ends of the stainless steel straight pipe (4) penetrate through the corresponding round holes of the multiple groups and extend to the outer sides of the first fixing seat (1) and the second fixing seat (2) respectively.

4. A shell and tube heat exchanger according to claim 1, wherein: and rubber protective sleeves (10) corresponding to the top heat-insulating cover (8) and the bottom heat-insulating cover (9) are fixedly connected to the outer sides of the first inner bushing (6) and the second inner bushing (7).

5. A shell and tube heat exchanger according to claim 1, wherein: the heat-insulating pipe sleeve (12) is arranged in a cylindrical structure, and two ends of the heat-insulating pipe sleeve (12) are fixedly connected with the first fixing seat (1) and the second fixing seat (2) respectively.

6. A shell and tube heat exchanger according to claim 1, wherein: the top end of the air inlet pipe (13) penetrates through the bottom heat-preservation cover (9) and the heat-preservation pipe sleeve (12) and is communicated with the heat-preservation pipe sleeve (12).