CN210268305U

CN210268305U - Heat exchanger for chemical equipment

Info

Publication number: CN210268305U
Application number: CN201921174615.0U
Authority: CN
Inventors: 李昱; 路博
Original assignee: Linyi University
Current assignee: Linyi University
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-04-07
Anticipated expiration: 2029-07-24

Abstract

The utility model provides a heat exchanger for chemical industry equipment, which comprises a housin, pipe case and built-in subassembly, be provided with the supporting leg in the lower part of casing, both ends all set up a pipe case about the casing, set up a first feed liquor pipe in the left side lower part of casing, right side upper portion at the casing sets up a first drain pipe, set up a second feed liquor pipe in the left pipe case lower part of casing that lies in, set up a second drain pipe in the pipe case upper portion that lies in the casing right side, built-in subassembly includes closing plate and inner tube, two closing plates set up both ends about the casing is inside respectively, a plurality of inner tubes set up on two closing plates, be provided with a plurality of convection current casees that distribute along the axial direction of inner tube on a plurality of inner tubes, and convection current case link. The liquid in the inner tube can carry out the convection current in the convection current case and mix to make the cryogenic liquids that are located inner tube center department carry out intensive mixing with the higher temperature liquid of inner tube inside wall department, do benefit to the whole heat transfer effect that improves the inner tube then.

Description

Heat exchanger for chemical equipment

Technical Field

The utility model relates to a heat exchanger for chemical industry equipment.

Background

Heat exchangers are process equipment that perform heat transfer and are widely used in the oil refining, petrochemical industry, and other general chemical industries. At present, a shell and tube heat exchanger is commonly adopted in the chemical field for heat transfer, and the heat exchange mode of two kinds of liquid is as follows: one liquid flows through the inside of the shell and the outside of the heat exchange pipe, the other liquid flows through the inside of the heat exchange pipe, and the inside and the outside of the heat exchange pipe exchange heat, so that the functions of the heat exchange pipe are realized. In the design of the heat exchange tube of the existing tube type heat exchanger, the resistance to the fluid in the heat exchange tube and the cleaning of the heat exchange tube are convenient to properly reduce, therefore, the inner diameter of the heat exchange tube is not very small, the inner diameter of the heat exchange tube is larger, the heat exchange effect of the liquid at the center of the heat exchange tube and the liquid outside the heat exchange tube is poor, and the whole heat exchange effect is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat exchanger for chemical industry equipment, the liquid in the inner tube can carry out the convection current in the convection current incasement and mix to make the cryogenic liquids that is located inner tube center department and the higher temperature liquid of inner tube inside wall department carry out the intensive mixing, do benefit to the whole heat transfer effect that improves the inner tube then.

The utility model provides a technical scheme that its technical problem adopted is: a heat exchanger for chemical equipment is characterized by comprising a shell, pipe boxes and built-in components, wherein supporting legs are arranged at the lower part of the shell, the pipe boxes are respectively arranged at the left end and the right end of the shell, a first liquid inlet pipe is arranged at the lower part of the left side of the shell, a first liquid outlet pipe is arranged at the upper part of the right side of the shell, a second liquid inlet pipe is arranged at the lower part of the pipe box positioned at the left side of the shell, a second liquid outlet pipe is arranged at the upper part of the pipe box positioned at the right side of the shell, the built-in components comprise sealing plates and inner pipes, the two sealing plates are respectively arranged at the left end and the right end inside the shell, the sealing plates realize the sealing and the isolation of the pipe boxes and the inside of the shell, the inner pipes are arranged on the two sealing plates, the left end and the right end of each inner pipe are respectively communicated with the, and the convection box is communicated with the inner pipe.

Preferably, a plurality of built-in pipelines are arranged in the convection box and are communicated with the inside of the shell.

Furthermore, the outer side walls of the shell and the tube box are wrapped with insulating layers.

Preferably, a plurality of arc-shaped baffle plates which are distributed in a staggered manner from top to bottom and from left to right are arranged in the shell, and the inner pipe penetrates through the arc-shaped baffle plates.

The utility model has the advantages that: the utility model has simple structure and convenient use and maintenance; the liquid in the inner pipe can be subjected to convection mixing in the convection box, so that the low-temperature liquid at the center of the inner pipe is fully mixed with the higher-temperature liquid at the inner side wall of the inner pipe, and the whole heat exchange effect of the inner pipe is improved; the built-in conduit arranged in the convection box can circulate the high-temperature liquid in the shell, so that the heat exchange effect of the high-temperature liquid in the shell and the low-temperature liquid in the convection box is further facilitated; the blocking effect of the arc baffle plates on the high-temperature liquid in the shell can promote the flowing mixing property of the high-temperature liquid, and then the uniformity of heat exchange between the high-temperature liquid and the liquid in the inner tube is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some of the preferred embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a built-in assembly;

FIG. 3 is an enlarged view taken at A in FIG. 2;

in the figure: the heat-insulation plate comprises a shell 1, 11 supporting legs, 12 first liquid inlet pipes, 13 first liquid outlet pipes, 14 arc-shaped baffle plates, 2 pipe boxes, 21 second liquid inlet pipes, 22 second liquid outlet pipes, 31 sealing plates, 32 inner pipes, 33 convection boxes, 331 built-in pipelines and 101 heat-insulation layers.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following specific embodiments and accompanying drawings 1 to 3, and it is obvious that the described embodiments are only a part of the preferred embodiments of the present invention, and not all embodiments. Those skilled in the art can make similar variations without departing from the spirit of the invention, and therefore the invention is not limited by the specific embodiments disclosed below.

The utility model provides a heat exchanger for chemical equipment (as shown in figure 1), which comprises a shell 1, a pipe box 2 and a built-in component, wherein the lower part of the shell 1 is provided with supporting legs 11, the left and right ends of the shell 1 are provided with the pipe box 2, in the embodiment, the shell 1 is connected with the pipe box 2 by adopting a flange connection mode, the left lower part of the shell 1 is provided with a first liquid inlet pipe 12, the right upper part of the shell 1 is provided with a first liquid outlet pipe 13, the lower part of the pipe box 2 positioned on the left side of the shell 1 is provided with a second liquid inlet pipe 21, the upper part of the pipe box 2 positioned on the right side of the shell 1 is provided with a second liquid outlet pipe 22, the built-in component comprises a sealing plate 31 and an inner pipe 32, the two sealing plates 31 are respectively arranged at the left and right ends inside the shell 1, and the sealing plate 31 realizes the sealing isolation between the pipe box, the inner pipes 32 are arranged on the two sealing plates 31, the left end and the right end of each inner pipe 32 are respectively communicated with the corresponding pipe box 2, the inner pipes 32 are provided with the convection boxes 33 distributed along the axial direction of the inner pipes 32, and the convection boxes 33 are communicated with the inner pipes 32, in the specific embodiment, the number of the convection boxes 33 is set to be 3, flowing liquid in the inner pipes 32 is mixed and convected through the convection boxes 33 and then flows out of the inner pipes 32 at the rear ends of the convection boxes 33, so that the heating effect of the high-temperature liquid in the shell 1 on the liquid in the inner pipes 32 is improved, the heating effect of the high-temperature liquid in the shell 1 on the liquid in the convection boxes 33 is further improved, the convection boxes 33 are internally provided with the built-in pipelines 331, and the built-in pipelines 331 are communicated with the interior of the shell 1; in order to improve the flowing mixing performance of the high-temperature liquid in the shell 1 and improve the heating uniformity of the high-temperature liquid in the shell 1 on the liquid in the inner pipe 32, a plurality of arc-shaped baffle plates 14 which are distributed in a staggered manner from top to bottom and from left to right are arranged in the shell 1, the inner pipe 32 penetrates through the arc-shaped baffle plates 14, in the specific embodiment, two arc-shaped baffle plates 14 are arranged in the shell 1, and each arc-shaped baffle plate 14 is distributed between two adjacent convection boxes 33; in order to improve the heat insulation effect of the casing 1 and the pipe box 2 and reduce unnecessary heat energy loss, the outer side walls of the casing 1 and the pipe box 2 are wrapped with heat insulation layers 101.

In practical applications, the high temperature liquid flows into the casing 1 from the first inlet pipe 12 and then flows out from the first outlet pipe 13, and the low temperature liquid flows into the inner pipe from the second inlet pipe 21 and then flows out from the second outlet pipe 22.

In the present invention, "upper", "lower", "left" and "right" are relative positions used for convenience of describing positional relationships, and therefore, cannot be interpreted as a limitation to the protection range as an absolute position.

In addition to the technical features described in the specification, the technology is known to those skilled in the art.

The above description is provided for the preferred embodiments and examples of the present invention with reference to the accompanying drawings, but the present invention is not limited to the above embodiments and examples, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit of the present invention, and these modifications and variations should be construed as the protection scope of the present invention.

Claims

1. A heat exchanger for chemical equipment is characterized by comprising a shell, pipe boxes and built-in components, wherein supporting legs are arranged at the lower part of the shell, the pipe boxes are respectively arranged at the left end and the right end of the shell, a first liquid inlet pipe is arranged at the lower part of the left side of the shell, a first liquid outlet pipe is arranged at the upper part of the right side of the shell, a second liquid inlet pipe is arranged at the lower part of the pipe box positioned at the left side of the shell, a second liquid outlet pipe is arranged at the upper part of the pipe box positioned at the right side of the shell, the built-in components comprise sealing plates and inner pipes, the two sealing plates are respectively arranged at the left end and the right end inside the shell, the sealing plates realize the sealing and the isolation of the pipe boxes and the inside of the shell, the inner pipes are arranged on the two sealing plates, the left end and the right end of each inner pipe are respectively communicated with, and the convection box is communicated with the inner pipe.

2. The heat exchanger as claimed in claim 1, wherein a plurality of built-in pipes are provided in the convection box, and the built-in pipes communicate with the inside of the housing.

3. The heat exchanger as claimed in claim 2, wherein the outer side walls of the casing and the tube box are covered with insulating layers.

4. The heat exchanger as claimed in claim 3, wherein a plurality of arc-shaped baffle plates are arranged inside the shell in a staggered manner, and the inner tube penetrates through the arc-shaped baffle plates.