CN211291123U

CN211291123U - Heat exchanger with flow guiding function

Info

Publication number: CN211291123U
Application number: CN201922135967.1U
Authority: CN
Inventors: 李国伟
Original assignee: Nantong Zhaohua Machinery Manufacturing Co ltd
Current assignee: Nantong Zhaohua Machinery Manufacturing Co ltd
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-08-18
Anticipated expiration: 2029-12-03

Abstract

The utility model discloses a heat exchanger with water conservancy diversion effect, casing one end is equipped with left pipe case, the inside first guide plate that is equipped with of left pipe case, the casing other end is equipped with right pipe case, the inside second guide plate that is equipped with of right pipe case, be equipped with first tube side baffle between left pipe case and the casing, be equipped with second tube side baffle between right pipe case and the casing, the tube bank parallel is located inside the casing, the baffle plate is located inside the casing perpendicularly, left pipe case top is located to tube side fluid entry, right pipe case below is located to tube side fluid outlet, casing top one side is located to shell side fluid entry, casing below one side is located to shell side fluid outlet, left pipe case below is located to first scavenge port, right pipe case top is located to the second scavenge port. The utility model discloses an inside guide plate that sets up of case is managed with right side to the left side of heat exchanger case, improves the medium flow state that the heat exchanger tube side was imported and exported through the guide plate for the medium can be smooth flow under the effect of guide plate, makes the local resistance obviously reduce, reduces calorific loss.

Description

Heat exchanger with flow guiding function

Technical Field

The utility model relates to a heat exchanger technical field specifically is a heat exchanger with water conservancy diversion effect.

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 and medicine 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 tubular heat exchanger mainly comprises a shell, a tube bundle, a tube plate and a seal head, wherein the shell is mostly circular, the interior of the shell is provided with the parallel tube bundle, and two ends of the tube bundle are fixed on the tube plate. The heat exchange is carried out by flowing in the tube bundle, and the stroke of the heat exchange is called as a tube pass; the wall surface of the tube bundle is the heat transfer surface. To increase the thermal coefficient of the fluid outside the tubes, a number of transverse baffles are usually installed in the housing. The baffle plate can not only prevent short circuit of fluid and increase fluid speed, but also force fluid to cross flow through the tube bundle for many times according to the specified path, so that the turbulence degree is greatly increased. Each time the fluid passes through the tube bundle within the tube is referred to as a tube pass. The prior tube pass heat exchanger has large volume and low heat exchange efficiency, so the improvement is needed. When the tube pass heat exchanger is improved, the problem of serious eddy current loss of the tube pass inlet and outlet of the tube pass heat exchanger is found, so that the electricity consumption is increased inefficiently due to large local resistance, and the whole tube box participates in heat exchange due to uniform temperature of the whole tube box, and unnecessary heat loss is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a heat exchanger with water conservancy diversion effect sets up the guide plate in the exit of heat exchanger, makes the medium ability smooth flow 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: a heat exchanger with a flow guide function comprises a shell, a tube bundle, a baffle plate, a first tube pass partition plate, a second tube pass partition plate, a left tube box, a right tube box, a first guide plate, a second guide plate, a tube pass fluid inlet, a tube pass fluid outlet, a shell pass fluid inlet, a shell pass fluid outlet, a first scavenging port and a second scavenging port, wherein the shell is cylindrical, one end of the shell is provided with the left tube box, the first guide plate is arranged in the left tube box, the other end of the shell is provided with the right tube box, the second guide plate is arranged in the right tube box, the first tube pass partition plate is arranged between the left tube box and the shell, the second tube pass partition plate is arranged between the right tube box and the shell, the tube bundle is arranged in the shell in parallel, one end of the tube bundle is fixed on the first tube pass partition plate, and the other end of the tube bundle is fixed on the, the baffle plate is vertically arranged in the shell, the tube pass fluid inlet is arranged above the left tube box, the tube pass fluid outlet is arranged below the right tube box, the shell pass fluid inlet is arranged on one side above the shell, the shell pass fluid outlet is arranged on one side below the shell, the first scavenging port is arranged below the left tube box, and the second scavenging port is arranged above the right tube box.

Preferably, the first guide plate and the second guide plate are both arc-shaped plates, and pressure equalizing holes are uniformly formed in the first guide plate and the second guide plate.

Preferably, the first guide plate is bent upwards, one end of the first guide plate is connected with the side wall above the left tube box, and the other end of the first guide plate is connected with the first tube side partition plate.

Preferably, the second guide plate is bent downwards, one end of the second guide plate is connected with the side wall below the right tube box, and the other end of the second guide plate is connected with the second tube side partition plate.

Preferably, the tube-side fluid inlet, the shell-side fluid inlet and the second transfer ports are arranged in the same horizontal axial direction.

Preferably, the tube-side fluid outlet, the shell-side fluid outlet and the first transfer ports are arranged in the same horizontal axial direction.

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

(1) the utility model discloses an inside guide plate that sets up of case is managed with right side to the left side of heat exchanger case, improves the medium flow state that the heat exchanger tube side was imported and exported through the guide plate for the medium can be smooth flow under the effect of guide plate, makes the local resistance obviously reduce, reduces calorific loss.

(2) The utility model discloses a set up the first guide plate of kickup in left side pipe case for the medium that gets into from tube side fluid entry can be along in the first guide plate flow direction casing.

(3) The utility model discloses a set up the second guide plate of downwarping in the right side pipe case for the medium that flows out in the casing can flow to the tube side fluid outlet along the second guide plate.

(4) The utility model discloses a set up left pipe case and right pipe case at the casing both ends, can reduce the thermal resistance of tube side both sides, improve the total heat transfer coefficient of heat exchanger, the same heat transfer volume can reduce the machining area of heat exchanger, has practiced thrift the volume of processing equipment.

(5) The utility model discloses a set up first tube side baffle and second tube side baffle at the casing both ends to increase the space, make whole heat exchange efficiency obtain the improvement at double to traditional tubular heat exchanger.

(6) The utility model discloses locate to set up first scavenge port and second scavenge port respectively at the upper and lower of left side pipe case and right side pipe case, can take a breath when needs, balanced inside and outside atmospheric pressure difference.

Drawings

FIG. 1 is an overall view of a heat exchanger;

fig. 2 is a diagram of a first baffle configuration.

In the figure: 1-a shell; 2-a tube bundle; 3-baffle plate; 4-a first tube side separator; 5-a second tube side separator; 6-left tube box; 7-a right tube box; 8-a first baffle; 9-a second baffle; 10-tube side fluid inlet; 11-tube side fluid outlet; 12-shell side fluid inlet; 13-a shell-side fluid outlet; 14-a first transfer port; 15-a second transfer port; 81-pressure equalizing 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.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a heat exchanger with a flow guiding function comprises a shell 1, a tube bundle 2, a baffle plate 3, a first tube side partition plate 4, a second tube side partition plate 5, a left tube box 6, a right tube box 7, a first flow guide plate 8, a second flow guide plate 9, a tube side fluid inlet 10, a tube side fluid outlet 11, a shell side fluid inlet 12, a shell side fluid outlet 13, a first scavenging port 14 and a second scavenging port 15, wherein the shell 1 is cylindrical, one end of the shell 1 is provided with the left tube box 6, the left tube box 6 is internally provided with the first flow guide plate 8, a medium entering from the tube side fluid inlet 10 can flow into the shell 1 along the first flow guide plate 8 by arranging the first flow guide plate 8 bent upwards in the left tube box 6, the other end of the shell 1 is provided with the right tube box 7, the right tube box 7 is internally provided with the second flow guide plate 9, a medium flowing out of the shell 1 can flow to the tube side fluid outlet 11 along the second flow guide plate 9 by arranging the second flow guide plate 9, the first guide plate 8 and the second guide plate 9 are both arc-shaped plates, the pressure equalizing holes 81 are uniformly arranged on the first guide plate 8 and the second guide plate 9, the left tube box 6 and the right tube box 7 are arranged at the two ends of the shell 1, the thermal resistance at the two sides of the tube side can be reduced, the total heat exchange coefficient of the heat exchanger can be improved, the processing area of the heat exchanger can be reduced by the same heat exchange amount, the volume of processing equipment is saved, the first tube side partition plate 4 is arranged between the left tube box 6 and the shell 1, the second tube side partition plate 5 is arranged between the right tube box 7 and the shell 1, the first tube side partition plate 4 and the second tube side partition plate 5 are arranged at the two ends of the shell 1, so that the space is increased, the whole heat exchange efficiency is improved in multiples for the traditional tube type heat exchanger, the first guide plate 8 is bent upwards, one end of the first guide plate 8 is connected with the side wall above the left tube box 6, a second guide plate 9 is bent downwards, one end of the second guide plate 9 is connected with the side wall below a right tube box 7, the other end of the second guide plate 9 is connected with a second tube pass partition plate 5, a tube bundle 2 is arranged in parallel inside the shell 1, one end of the tube bundle 2 is fixed on the first tube pass partition plate 4, the other end of the tube bundle 2 is fixed on the second tube pass partition plate 5, a baffle plate 3 is vertically arranged inside the shell 1, a tube pass fluid inlet 10 is arranged above the left tube box 6, a tube pass fluid outlet 11 is arranged below the right tube box 7, a shell pass fluid inlet 12 is arranged on one side above the shell 1, a shell pass fluid outlet 13 is arranged on one side below the shell 1, a first scavenging port 14 is arranged below the left tube box 6, a second scavenging port 15 is arranged above the right tube box 7, the tube pass fluid inlet 10, the shell pass fluid inlet 12 and the second scavenging port 15 are arranged in the same horizontal axial direction, the tube pass fluid outlet 11, the shell pass, the first ventilation port 14 and the second ventilation port 15 are respectively arranged at the upper part and the lower part of the left tube box 6 and the right tube box 7, so that ventilation can be performed when needed, and the internal and external air pressure difference can be balanced.

Application method

Cold fluid enters the left channel box 6 from a tube-side fluid inlet 10 above the shell 1, hot fluid enters the shell 1 from a shell-side fluid inlet 12 above the shell 1, the cold fluid flows in the tube bundle 2 and exchanges heat with the hot fluid outside the tube bundle 2, the cold fluid enters the right channel box 7 and then flows out from a tube-side fluid outlet 11, the tube bundle 2 and the shell 1 are completely isolated, cross contamination is avoided, and the heat loss of the cold fluid in the inlet and outlet process is reduced by arranging the first guide plate 8 which is bent upwards in the left channel box 6 and the second guide plate 9 which is bent downwards in the right channel box 7.

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. A heat exchanger with water conservancy diversion effect which characterized in that: the device comprises a shell, a tube bundle, a baffle plate, a first tube pass partition plate, a second tube pass partition plate, a left tube box, a right tube box, a first guide plate, a second guide plate, a tube pass fluid inlet, a tube pass fluid outlet, a shell pass fluid inlet, a shell pass fluid outlet, a first scavenging port and a second scavenging port, wherein the shell is cylindrical, one end of the shell is provided with the left tube box, the first guide plate is arranged in the left tube box, the other end of the shell is provided with the right tube box, the second guide plate is arranged in the right tube box, the first tube pass partition plate is arranged between the left tube box and the shell, the second tube pass partition plate is arranged between the right tube box and the shell, the tube bundle is arranged in the shell in parallel, one end of the tube bundle is fixed on the first tube pass partition plate, the other end of the tube bundle is fixed on the second tube pass partition plate, and, the tube side fluid inlet is arranged above the left tube box, the tube side fluid outlet is arranged below the right tube box, the shell side fluid inlet is arranged on one side above the shell, the shell side fluid outlet is arranged on one side below the shell, the first scavenging port is arranged below the left tube box, and the second scavenging port is arranged above the right tube box.

2. The heat exchanger with flow guiding function according to claim 1, wherein: the first guide plate and the second guide plate are both arc-shaped plates, and pressure equalizing holes are uniformly formed in the first guide plate and the second guide plate.

3. The heat exchanger with flow guiding function according to claim 2, characterized in that: the first guide plate is bent upwards, one end of the first guide plate is connected with the side wall above the left tube box, and the other end of the first guide plate is connected with the first tube side partition plate.

4. The heat exchanger with flow guiding function according to claim 2, characterized in that: the second guide plate is bent downwards, one end of the second guide plate is connected with the side wall below the right tube box, and the other end of the second guide plate is connected with the second tube side partition plate.

5. The heat exchanger with flow guiding function according to claim 1, wherein: the tube-side fluid inlet, the shell-side fluid inlet and the second scavenging port are arranged in the same horizontal axial direction.

6. The heat exchanger with flow guiding function according to claim 1, wherein: the tube-side fluid outlet, the shell-side fluid outlet and the first scavenging port are arranged in the same horizontal axial direction.