A kind of heat exchanger of thermal source Multi-class propagation
This utility model relates to a kind of heat exchanger, the heat exchanger of a kind of thermal source Multi-class propagation.
Shell-and-tube heat exchanger is current most widely used heat transmission equipment, and existing shell-and-tube heat exchanger is usually at cylinder
Placed the tube bank being made up of many heat exchanger tubes in the housing of shape, the both ends or one end of pipe are fixed on tube sheet, tube sheet and shell
Body welds；Polylith deflection plate is installed in housing and supports heat exchanger tube, and with settling down pipe, itself and pipe are assembled in one by pull bar
Rise；Bobbin carriage is positioned at the two ends of shell-and-tube heat exchanger, housing and bobbin carriage and all has the import and export of fluid to ensure technique heat transfer requirements.
Current existing fixed tube-sheet exchanger, tube bank is connected on tube sheet, tube sheet and case weld, shell-side fluid edge
Flow Around in the runner that staggered deflection plate is formed；With the fluid heat transfer in tube side.This simple in construction, heat exchanger tube are arranged tight
Gather, higher pressure can be born.In industries such as oil refining, chemical industry, biological medicine, power plant, in order to meet technological requirement, often require thing
Material and intermediate product are in specific temperature and pressure value.Industrial often utilize industrial waste heat, high-grade intermediate product thermal source or
Steam sources etc. realize heat by heat exchanger and exchange, and meet the technological requirement of fluid mechanics.But traditional shell-and-tube changes
Hot device is all single Pipe bundle structure, after thermal source and process stream heat exchange once, just emits, and this part of heat energy still has the highest heat
Amount, does not meets the strategy and policy that national energy-saving reduces discharging.When additionally using high temperature heat source, tube bank and the wall temperature of housing or the line of material
Coefficient of expansion difference is relatively big, and housing and tube bank produce bigger thermal stress.
Utility model content
This utility model purpose is the deficiency for solving above-mentioned technical problem, it is provided that the heat exchange of a kind of thermal source Multi-class propagation
Device, can need to be divided into multistage according to technique and arrange all have fluid and the stream in tube bank in the cylinder shell of each heat-exchanging component
Body heat exchange, a heat exchanger meets the duty requirements that can reach of multiple stage heat exchanger；Simultaneously can reduce thermal stress, it is to avoid flexibility
The setting of element.
This utility model be the technical scheme is that the heat exchange of a kind of thermal source Multi-class propagation by the above-mentioned technical problem of solution
Device, it is respectively arranged at two ends with left end bobbin carriage and right-hand member bobbin carriage；Multiple being sequentially connected with it is provided with between left end bobbin carriage and right-hand member bobbin carriage
Heat-exchanging component, each heat-exchanging component is respectively provided with independent cylinder shell, and cylinder shell is provided with inlet tube and outlet, cylinder
The two ends of shell are equipped with tube sheet, and the tube bank in each cylinder shell all connects with the tube sheet at its two ends, and adjacent cylinder
Tube bank in shell is docked by tube sheet.
The deflection plate that be crisscross arranged is distributed in described cylinder shell.
Described deflection plate is fitted together by pull bar and distance sink tube with tube bank.
Tube bank in adjacent heat-exchanging component is fixed together by the securing member on tube sheet and gasket seal.
Described heat-exchanging component is preferably 3, including heat-exchanging component I, heat-exchanging component II and heat-exchanging component III.
The saddle of multiple sustainable heat-exchanging component it is provided with below described heat-exchanging component.
Below described heat-exchanging component, the quantity of set saddle, can be configured, preferably 1 according to actual needs.
Provide the benefit that:
1, the heat exchanger of this utility model thermal source Multi-class propagation, needs tube bank is divided into multistage according to technique；High temperature heat source
Heat exchanger tube is entered, the tube bank in heat-exchanging component and the fluid heat transfer in the cylinder shell at its place by tube-side inlet.Pass through work
Skill calculates length and the setting of deflection plate that can rationally arrange every section of tube bank, meets multi-state demand.Reach at one pipe
Under journey operating mode, cylinder shell can have multiple heat-exchanging state, and its structure ensure that the cascade utilization of heat, improves energy profit
Use efficiency.Can be widely applied in the industries such as oil, chemical industry, biological medicine, electric power, it is achieved the cascade utilization of thermal source.
2, the heat exchanger of this utility model thermal source Multi-class propagation, shares under a tube side, and multitubular bundles designs, and structure is tighter
Gather, also save the bobbin carriage portion of material needed for multiple stage heat exchanger simultaneously, reduce manufacturing cost.Realize thermal source cascade utilization,
Multi-stage heat exchanger, reduces heat source temperature and not the mating of temperature in shell side, reduction thermal stress, it is to avoid the setting of flexible member.
Accompanying drawing explanation
Fig. 1 is the heat exchanger structure schematic diagram of thermal source Multi-class propagation of the present utility model；
In figure, labelling is: 1, left end bobbin carriage, 2, right-hand member bobbin carriage, 3, heat-exchanging component, 31, cylinder shell, 32, tube sheet, 33, tight
Firmware, 34, pad, 35, tube bank, 36, deflection plate, 37, pull bar, 38, distance sink tube；4, heat-exchanging component I, 5, heat-exchanging component II, 6,
Heat-exchanging component III, 7, saddle.
Detailed description of the invention
As it can be seen, the heat exchanger of a kind of thermal source Multi-class propagation, it is respectively arranged at two ends with left end bobbin carriage 1 and right-hand member bobbin carriage 2；
Being provided with multiple heat-exchanging component 3 being sequentially connected with between left end bobbin carriage 1 and right-hand member bobbin carriage 2, each heat-exchanging component 3 is respectively provided with independence
Cylinder shell 31, cylinder shell 31 is provided with inlet tube and outlet, and the two ends of cylinder shell 31 are equipped with tube sheet 32, each
Tube bank 35 in cylinder shell 31 all connects with the tube sheet 32 at its two ends, and the tube bank in adjacent cylinder shell 31 is by pipe
The deflection plate 36 that be crisscross arranged is distributed in described cylinder shell 31.
Described deflection plate 36 is fitted together by pull bar 37 and distance sink tube 38 with tube bank 35.
Tube bank in adjacent heat-exchanging component 3 is sealedly and fixedly connected one by the securing member 33 on tube sheet and pad 34
Described heat-exchanging component 3 is preferably 3, including heat-exchanging component I 4, heat-exchanging component II 5 and heat-exchanging component III 6.
The saddle 7 of multiple sustainable heat-exchanging component 3 it is provided with below described heat-exchanging component 3.
Below described heat-exchanging component 3, the quantity of set saddle 7 can be configured as required, preferably 1.This practicality is new
The heat exchanging part of the heat exchanger of the thermal source Multi-class propagation in type, adjacent tube bank is reached even by the securing member on tube sheet and pad
The requirement connecing and sealing.According to process conditions requirement, the length of reasonable Arrangement every section tube bank and the arrangement of deflection plate.Reach
To under a kind of tube side operating mode, shell side can have multiple heat-exchanging state, and its structure ensure that the cascade utilization of tube side thermal source, carries
High energy utilization efficiency, reduces manufacturing cost simultaneously.Additionally thermal source multi-stage heat exchanger, reduces thermal source with temperature in shell side not
Coupling temperature, reduces thermal stress.
Its agent structure is identical with detailed description of the invention, and the heat-exchanging component in the present embodiment has 3, and tube bank is divided into three sections,
Tube side fluid restrains fluid heat transfer in corresponding cylinder shell with every section, and tube side thermal source can meet three kinds of various heat exchange operating modes
Demand, improves efficiency of energy utilization.Can be widely applied in the industries such as oil, chemical industry, biological medicine, electric power, it is achieved thermal source