CN203224152U

CN203224152U - Baffle plate type one-way heat exchanger

Info

Publication number: CN203224152U
Application number: CN 201320173088
Authority: CN
Inventors: 李双龙; 李润平
Original assignee: XI'AN XIELI POWER TECHNOLOGY Co Ltd
Current assignee: XI'AN XIELI POWER TECHNOLOGY Co Ltd
Priority date: 2013-04-09
Filing date: 2013-04-09
Publication date: 2013-10-02
Anticipated expiration: 2023-04-09

Abstract

The utility model provides a baffle plate type one-way heat exchanger. A shell is arranged on a support; a cold fluid inlet and a cold fluid outlet are formed in the two ends of the shell respectively; the shell is divided into a front water chamber, a heat exchange condensed steam chamber and a rear water chamber by a front tube sheet and a rear tube sheet in the inner cavity of the shell; a hot fluid inlet and a hot fluid outlet are formed in the two end side walls of the heat exchange condensed steam chamber respectively; a heat exchange pipe and a baffle plate are arranged in the inner cavity of the heat exchange condensed steam chamber; two ends of the heat exchange pipe pass through the baffle plate respectively to be connected with the front tube sheet and the rear tube sheet; the two ends of the heat exchange pipe are communicated with the front water chamber and the rear water chamber respectively; the outer periphery of the baffle plate is fixed on the rear tube sheet through a pull bar; three fan-ring-shaped windows are formed in the baffle plate; and a through hole through which the heat exchange pipe can be conveniently mounted is formed between one fan-ring-shaped window and another fan-ring-shaped window. The baffle plate type one-way heat exchanger has the advantages that the shell side pressure is reduced, the heat exchange efficiency is high, the anti-vibration performance is good, the anti-scaling performance is strong, and the like.

Description

The baffle plate type single-pass exchanger

Technical field

The utility model belongs to the Heat Exchanger for Power Plant device systems, particularly a kind of baffle plate type single-pass exchanger.

Background technology

In recent years; because technological requirement, energy crisis and environmental protection etc. are all multifactor; the modern Design of heat conduction reinforced technology and heat exchanger obtains develop rapidly, and improving version, the change fluid flow of traditional heat exchangers and improving heat transfer efficiency is one of important directions of current heat exchanger augmentation of heat transfer.

At present, usually the heat exchanger of usefulness is to adopt transverse baffle formula structure, because the hot fluid outside heat exchanger tube is lateral flow, can there be flow dead and heat transfer dead band, and flow resistance is big in the lateral flow process, the scouring force of exchange heat pipe is big, induces tube bundle vibration to destroy easily, reduces the service life of entire equipment.

Summary of the invention

In order to overcome the existing defective of traditional cross-current baffle plate type heat exchanger, the utility model provides a kind of traditional shell side lateral flow is changed into vertically to flow, and has realized the baffle plate type single-pass exchanger that the heat exchange equipment resistance to shock is good, the shell-side fluid permeability is better, heat transfer efficiency is high.

Solving the problems of the technologies described above the technical scheme that adopts is: bearing is provided with housing, the two ends of housing are processed with cold fluid entrance and cold fluid outlet respectively, by front tube sheet and back tube sheet housing is divided into front water chamber at the housing inner chamber, heat exchange condensing chamber, back hydroecium, on the two ends sidewall of heat exchange condensing chamber, be processed with the outlet of hot fluid entrance and hot fluid respectively, be provided with heat exchanger tube and deflection plate in the indoor chamber of heat exchange condensing, the two ends of heat exchanger tube are passed deflection plate and front tube sheet respectively, back tube sheet connects, and the two ends of heat exchanger tube respectively with front water chamber, back hydroecium links, be fixed on the back tube sheet by pull bar on the excircle of deflection plate, be processed with 3 fan ring-like windows at deflection plate, be processed with between a fan ring-like window and another fan ring-like window and be convenient to the through hole that heat exchanger tube is installed.

The central angle of each fan ring-like window is 60 °, is distributed on the deflection plate.

Above-mentioned deflection plate is at least two, and a deflection plate and an adjacent deflection plate are 60 ° and are dislocatedly distributed.

Baffle plate type single process heat exchanger of the present utility model, be to adopt novel shell side structure, by the deflection plate of arranged in dislocation is set in housing, shell-side fluid is changed into vertically by traditional lateral flow to flow, having shell side pressure reduces, the heat exchange efficiency height, resistance to shock is good, advantages such as resistive connection dirt performance is strong, it is strong to have segmental baffle board heat exchangers adaptability again, reliable operation, manufacturing and advantage such as easily assembled, and power conversion usefulness height, be particularly useful for shell side dielectric viscosity height, medium is easy to the fluid operating mode of fouling.

Description of drawings

Fig. 1 is the heat exchanger structure schematic diagram among the embodiment.

Fig. 2 is the structural representation of the deflection plate 7 among Fig. 1.

The specific embodiment

Now by reference to the accompanying drawings the technical solution of the utility model is further specified, but the utility model is not limited only to following enforcement situation.

As shown in Figure 1, the heat exchanger of present embodiment is made of bearing 1, housing 2, front water chamber 3, front tube sheet 4, heat exchanger tube 5, pull bar 6, deflection plate 7, back tube sheet 8 and 9 connections of back hydroecium.

Sidewall bottom at housing 2 is installed on former and later two bearings 1, front end at housing 2 is processed with the cold fluid import, be processed with the cold fluid outlet in the rear end of housing 2, in housing 2 along radially being welded with front tube sheet 4 and back tube sheet 8, housing 2 inner chambers are divided into front water chamber 3, air chamber is coagulated in heat exchange, back hydroecium 9, the sidewall rear and front end of coagulating air chamber in heat exchange is processed with hot fluid entrance and hot fluid outlet respectively, in the chamber along being axially installed with heat exchanger tube 5, along 4 deflection plates 7 radially are installed, referring to Fig. 2, be processed with screw on the excircle of each deflection plate 7,4 deflection plates 7 connect by the pull bar 6 that passes screw, the other end of pull bar 6 is by being bolted on the back tube sheet 8, being processed with central angle at deflection plate 7 is 60 ° 3 fan ring-like windows, 3 fan ring-like windows are evenly distributed on the deflection plate 7, deflection plate 7 between the fan ring-like window is processed with manhole, a deflection plate 7 is 60 ° of arranged in dislocation with an adjacent deflection plate 7, the through hole two ends that heat exchanger tube 5 passes deflection plate 7 extend to front tube sheet 4 respectively, back tube sheet 8, welding is connected in front tube sheet 4, on the back tube sheet 8, by heat exchanger tube 5 with front water chamber 3 and back hydroecium 9 UNICOMs.

Cold water enters front water chamber 3 from changing from the cold fluid entrance, after heat exchanger tube 5 enters in the hydroecium 9, flow out through the cold fluid outlet, hot water enters heat exchange from the hot fluid entrance and coagulates in the air chamber, flow in the cavity between front tube sheet 4 and first deflection plate 7, vertically flow between first deflection plate 7 and second deflection plate 7 from 3 of first deflection plate 7 fan ring-like windows, and the like, hot water produces strong turbulence effects, it is vertically mobile that integral body is, flow between last piece deflection plate 7 and the back tube sheet 8, flowed out by the hot fluid outlet.

Claims

1. baffle plate type single-pass exchanger, it is characterized in that: bearing (1) is provided with housing (2), the two ends of housing (2) are processed with cold fluid entrance and cold fluid outlet respectively, by front tube sheet (4) and back tube sheet (8) housing (2) is divided into front water chamber (3) at housing (2) inner chamber, heat exchange condensing chamber, back hydroecium (9), on the two ends sidewall of heat exchange condensing chamber, be processed with the outlet of hot fluid entrance and hot fluid respectively, be provided with heat exchanger tube (5) and deflection plate (7) in the indoor chamber of heat exchange condensing, the two ends of heat exchanger tube (5) are passed deflection plate (7) and front tube sheet (4) respectively, back tube sheet (8) connects, and the two ends of heat exchanger tube (5) respectively with front water chamber (3), back hydroecium (9) links, be fixed on the back tube sheet (8) by pull bar (6) on the excircle of deflection plate (7), be processed with 3 fan ring-like windows at deflection plate (7), be processed with between a fan ring-like window and another fan ring-like window and be convenient to the through hole that heat exchanger tube (5) is installed.

2. baffle plate type single-pass exchanger according to claim 1 is characterized in that: central angle of each fan ring-like window is 60 °, is distributed on the deflection plate (7).

3. baffle plate type single-pass exchanger according to claim 1, it is characterized in that: described deflection plate (7) is at least two, a deflection plate (7) is 60 ° with an adjacent deflection plate (7) and is dislocatedly distributed.