CN207763557U - A kind of heat-exchanging component and the fluidized-bed reactor comprising it - Google Patents
A kind of heat-exchanging component and the fluidized-bed reactor comprising it Download PDFInfo
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- CN207763557U CN207763557U CN201820100466.2U CN201820100466U CN207763557U CN 207763557 U CN207763557 U CN 207763557U CN 201820100466 U CN201820100466 U CN 201820100466U CN 207763557 U CN207763557 U CN 207763557U
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Abstract
This application involves a kind of heat-exchanging component and include its fluidized-bed reactor.Heat-exchanging component includes cylinder and circumferential multiple heat exchange units, multiple heat exchange units are arranged in the cylinder, each heat exchange unit includes that both ends are connected respectively to charging and are in charge of and the coil pipe unit being in charge of that discharges, the charging, which is in charge of, to be connect by feeding-passage with charging manifold, the discharging, which is in charge of, to be connect by tapping channel with discharge header pipe, the charging is in charge of is in charge of vertical relative tilt arrangement with the discharging, and the charging is in charge of is in charge of the distance between upper end less than the distance between its lower end with the discharging.The application have convenient to install and maintain, built-in thermal stress and flow resistance is low, heat exchange uniformly, parking when the technological merits such as be not easy to plug.
Description
Technical field
The utility model is related to a kind of heat-exchanging component and comprising its fluidized-bed reactor, belong to the technology neck of heat exchange
Domain.
Background technology
Heat exchanger be it is a kind of between the two or more fluids of different temperatures realize material between heat transfer energy-saving equipment,
It is that heat is made to pass to the lower fluid of temperature by the higher fluid of temperature, fluid temperature (F.T.) is made to reach the index of flow specification, with
Meet the needs of process conditions, while being also one of the capital equipment for improving energy utilization rate.Heat exchanger industry is related to HVAC, pressure
Force container, sewerage disposing equipment, chemical industry, nearly 30 multi industries such as oil.
Fluidized-bed reactor refers to solid particle material under airflow function, is in suspended motion state in equipment.Fluidize shape
Solid particle layer under state has the characteristic of liquid, for example, the solid particle layer to suspend can keep certain level circle as water
Face simultaneously has static pressure and buoyancy, has mobility etc. as water, this technology is also known as gas-solid fluidization technology.Gas
The bed material layer of solid particle composition is flowed through, when gas flow rate is relatively low, solid does not have relative motion, gas to flow through between particle
Gap flow through bed.Further increase gas flow rate on this basis, gas flow into particle surface frictional force and buoyancy it
With the gravity more than particle, particle is suspended, and there is no active force between particle, gas-solid system has the property of fluid
Matter, solid are fluidized, and are at this moment in incipient fluidization state.If further increasing the flow velocity of gas, bed constantly expands.When more
More gases enter system, are more than the gas for the gas flow rate that incipient fluidization needs, bed are passed through in the form of bubble, this is just
It is bubbling fluidization.With further increasing for gas velocity, bed surface has a large amount of particle to be entrained to leave bed, the boundary on bed surface
Face is no longer clear, and corresponding at this time is turbulent bed.Gas-solid reaction is carried out using the bubbling bed or turbulent bed form of gas-solid contact
Reactor, referred to as fluidized-bed reactor.
The basic structure of fluidized-bed reactor in addition to cylinder, as needed can also include gas distributor, heat-exchanging component,
Transverse baffle, the internal components such as cyclone separator and solid particle feeder, discharger etc., these are all that this field is common
Technology, without repeating.Chinese patent application 201010216437.0 discloses a kind of unitized exchanger and fluidized-bed reactor,
It is logical including annular charging manifold disposed in parallel and annular discharge header pipe, multiple tapping channels of radially even distribution and charging
Road, by multiple heat exchange units of cylindrical arrangement, axially extend more chargings are in charge of and discharging is in charge of；Its defect is main
Including the following aspects：
(1) annular charging manifold and annular discharge header pipe are arranged in parallel so that after system shutdown, can be fed in annular
The internal residual heat exchange fused salt of manifold and annular discharge header pipe, are such as not excluded for residual heat exchange fused salt, then can be blocked up after its cooling
Fill in pipeline.In addition, requirement of the ring pipe for precision in processing and installation is very high, difficulty is big, and very inconvenient；Once
Annular charging manifold and annular discharge header pipe install, and the insulating layer outside fluidized-bed reactor cylinder connects with regard to extremely difficult
Closely, very inconvenient for repair and maintenance.
(2) accomplished to be uniformly distributed on tapping channel and feeding-passage surface, but do not considered close to heat exchange fused salt
The temperature of entrance location is higher, and the temperature far from heat exchange fused salt entrance location is relatively low, therefore does not bring uniform biography actually
The effect of heat.In addition, if tapping channel and feeding-passage are horizontally disposed, big, thermal stress that there are flow resistances is greatly simultaneously
And its inside is easy storage heat exchange fused salt and is not easy to be discharged when stopping.
(3) charging is in charge of and discharging is in charge of and is arranged in parallel in an axial direction so that is connected to that charging is in charge of and discharging is in charge of
Every coil pipe length it is identical.With above-mentioned identical reason, be arranged such also only accomplished it is uniform on surface, actually
Consider charging be in charge of lower end enter heat exchange fused salt when temperature it is higher and discharge be in charge of upper end be discharged heat exchange fused salt when
Temperature is relatively low, so really realize the effect of uniformly transfer heat, but also can be in charge of in charging and discharging to be in charge of upper is formationed hot
Stress concentration, it is easy to crack at the joint weld that coil pipe pipeline is in charge of with input and output material, occur leaking or leak.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of heat-exchanging component and the fluidisation comprising it
Bed reactor, it is low with convenient to install and maintain, built-in thermal stress and flow resistance, heat exchange uniformly, parking when be not easy to plug
Technological merit.
According to a kind of heat-exchanging component of the application, including cylinder and circumferential multiple heat exchange units, multiple heat exchange
Unit is arranged in the cylinder, and each heat exchange unit includes that both ends are connected respectively to charging and are in charge of and the coil pipe list being in charge of that discharges
Member, the charging, which is in charge of, to be connect by feeding-passage with charging manifold, and the discharging is in charge of through tapping channel and discharge header pipe
Connection, the charging is in charge of is in charge of vertical relative tilt arrangement with the discharging, and the charging is in charge of to be in charge of with the discharging
The distance between end is less than the distance between its lower end.
Preferably, the charging manifold includes two chargings straight tube disposed in parallel, and two charging straight tubes are connected by pipeline
It is logical；The discharge header pipe includes two dischargings straight tube disposed in parallel, and two discharging straight tubes are connected to also by pipeline.The charging
Manifold and the discharge header pipe can favour horizontal plane setting.The charging straight tube can pass through multiple chargings disposed in parallel
Channel is connected to charging and is in charge of, and the discharging straight tube can be connected to discharging by multiple tapping channels disposed in parallel and be in charge of.
Preferably, the feeding-passage is vertically arranged with the charging straight tube, the charging of each heat exchange unit be in charge of with
An at least feeding-passage connection；And/or the tapping channel is vertically arranged with the discharging straight tube, and each heat exchange is single
The discharging of member, which is in charge of, to be connect with an at least tapping channel.
Preferably, it is connected using elbow between the feeding-passage and charging are in charge of, the method for the elbow and the cylinder
It is in tilted layout between line；And/or the tapping channel and discharging are connected between being in charge of using elbow, the elbow and institute
It states and is in tilted layout between the normal of cylinder.
In addition, the charging is in charge of to be in charge of with the discharging is also provided with multiple support elements in short transverse.
The another aspect of the application is related to a kind of fluidized-bed reactor, and the charging manifold is arranged under the cylinder
Portion, the discharge header pipe are arranged on the top of the cylinder, and the inner barrel is equipped with heat-exchanging component, and the heat-exchanging component is such as
The upper heat-exchanging component.
Advantageous effects achieved by the application are：
(1) horizontal plane setting is favoured by the way that manifold and discharge header pipe will be fed, after system shutdown, will not fed
Manifold and the internal residual of discharge header pipe heat exchange fused salt prevent from blocking pipeline after heat exchange fused salt cooling.
(2) straight tube and discharging straight tube are fed by setting in the application so that itself and the circular cylinder body outside heat exchange unit
Between can form larger service clearance, solve annular charging manifold in the prior art and annular discharge header pipe and circular cylinder
The too small problem of service clearance between body.
(3) by multiple feeding-passages and tapping channel and corresponding elbow along the circumferential flexible arrangement of heat exchange unit, with
Meet what heat exchange fused salt that flow resistance is small, thermal stress is small, heat exchange is uniform and its inside is easy storage when stopping was easily drained
It is required that.
(4) charging is in charge of in the application and discharge be in charge of the distance between upper end be set smaller than between its lower end away from
From the problems in prior art middle and upper part coiled pipe and uneven, the thermal stress collection of lower part coiled pipe heat exchange can be solved.
Description of the drawings
Fig. 1 is the phantom of the fluidized-bed reactor of the heat-exchanging component with the application.
Fig. 2 is the A-A sectional views in Fig. 1.
Fig. 3 is the C-C sectional views in Fig. 1.
Fig. 4 is the B-B sectional views in Fig. 1.
Fig. 5 is that the schematic diagram being in charge of is in charge of and discharges in the charging in the application.
Specific implementation mode
The utility model is described in detail below in conjunction with embodiment and attached drawing, it should be pointed out that described
Embodiment be intended merely to facilitate the understanding to the utility model, and do not play any restriction effect to it.
As shown in Figs. 1-5, include charging manifold 10 and discharge header pipe 30 according to the heat-exchanging component of the application.Such as the institutes of Fig. 2 and 3
Show, charging manifold 10 includes two disposed in parallel charging straight tubes 11 and 12, and two charging straight tubes 11 and 12 can be by arbitrary
The pipeline of shape is connected to (not shown)；Discharge header pipe 30 includes two disposed in parallel discharging straight tubes 31 and 32, and two go out
Material straight tube 31 can also be connected to (not shown) with 32 by the pipeline of arbitrary shape.Charging manifold 10 and discharge header pipe 30 are inclined
Tiltedly in horizontal plane be arranged, in this way after system shutdown, will not charging manifold and discharge header pipe internal residual exchange heat fused salt,
It prevents from blocking pipeline after heat exchange fused salt cooling.Straight tube 11 and 12 is fed to connect by multiple feeding-passages 13 disposed in parallel
It is in charge of 21 to charging, discharging straight tube 31 and 32 is connected to discharging by multiple tapping channels 33 disposed in parallel and is in charge of 22.
Multiple heat exchange units are arranged circumferentially about, and the charging being vertically in tilted layout is both provided in each heat exchange unit and is in charge of
21 and discharging be in charge of 22, multilayer coil pipe unit be connected respectively to charging be in charge of 21 and discharging be in charge of 22.Coil pipe unit may be used
Coiled pipe, one end of coiled pipe are connected to charging and are in charge of 21, and the other end is connected to discharging and is in charge of 22.Wherein, 21 Hes are in charge of in charging
Discharging is in charge of 22 and is arranged in splayed, i.e., charging, which is in charge of 21 and discharges, is in charge of the distance between 22 upper ends less than between its lower end
Distance.In order to meet sufficient heat exchange, charging is in charge of 21 and discharged and is in charge of 22 forms for being set as bottom in and top out, is being changed in this way
In thermal process, in each heat exchange unit can tight stream have heat exchange fused salt.And exchange heat fused salt charging be in charge of 21 lower ends into
Temperature at mouthful will be apparently higher than the temperature that discharging is in charge of at 22 upper end outlets.In order to enable heat exchange to add uniformly, should will lean on
Closely feed the coiled pipe for being in charge of 21 lower end entrances length be set smaller than close to discharging be in charge of it is snakelike at 22 upper end outlets
The length of pipe.Under the external dimensions unanimous circumstances of coiled pipe, it is necessary to be in charge of charging and discharging is in charge of in splayed cloth
It sets.Therefore, in the application will charging be in charge of 21 and discharging be in charge of the distance between 22 upper ends and be set smaller than between its lower end
Distance can solve the problems, such as that prior art middle and upper part coiled pipe and the heat exchange of lower part coiled pipe are non-uniform.Preferably, heat exchange unit
In circular uniformly arrangement, the ratio of internal diameter and outer diameter is 0.1-0.9.
As shown in Figures 2 and 3, the charging in the application be in charge of 21 and discharging be in charge of 22 and be provided with multiple in short transverse
Support member 40, is used to support coil pipe unit, and coil pipe unit is in charge of 21 and in addition to discharging is in charge of on 22 except both ends are welded to charging,
It can also be supported on support element 40.Support element is set as conventional technique in the prior art, those skilled in the art
It realizes, repeats no more.
As shown in figure 3, feeding-passage 13 can be vertically arranged with charging straight tube 11 and 12, the charging point of each heat exchange unit
Pipe 21 is connect with an at least feeding-passage 13.Feeding-passage 13 and charging are connected between being in charge of 21 using elbow 14.Elbow
It is in tilted layout between 14 and the normal of the cylinder 15 outside heat exchange unit.Preferably, it can be arranged in 10-30 ° of angle of inclination.Figure
It is in 15 ° and 20 ° arrangements respectively in 3, between the normal of the cylinder 15 outside each elbow 14 and heat exchange unit.Multiple feeding-passages 13
Can be with flexible arrangement along the circumferential direction of heat exchange unit with corresponding elbow, to meet, flow resistance is small, thermal stress is small, heat exchange is uniform simultaneously
And the requirement that its internal heat exchange fused salt for being easy storage is easily drained when stopping.
As shown in Fig. 2, tapping channel 33 can be vertically arranged with discharging straight tube 31 and 32, the discharging point of each heat exchange unit
Pipe 22 is connect with an at least tapping channel 33.Tapping channel 33 and discharging also use elbow 14 to connect between being in charge of 22.It is curved
It is also in tilted layout between first 14 and the normal of the cylinder 15 outside heat exchange unit.Preferably, can be in 10-30 ° of angle of inclination cloth
It sets.Can also be in 15 ° and 20 ° arrangements respectively in Fig. 4, between the normal of the cylinder 15 outside each elbow 14 and heat exchange unit.Similarly,
Multiple tapping channels 33 and corresponding elbow can also flexible arrangements along the circumferential direction of heat exchange unit.
In the application pass through setting feed straight tube 11 and 12, discharging straight tube 31 and 32 so that its with outside heat exchange unit
Larger service clearance can be formed between circular cylinder body, solve annular charging manifold in the prior art and annular discharge header pipe
The too small problem of service clearance between circular cylinder body.
With reference to the working method of the heat-exchanging component of above-mentioned description of the drawings the application.As shown in Figure 1, including the application's
The fluidized-bed reactor of heat-exchanging component includes cylinder 15, and the lower part of cylinder 15 is equipped with charging manifold, and the top of cylinder 15 is equipped with out
Expect that manifold, cylinder 15 are internally provided with heat-exchanging component.Heat-exchanging component includes circumferential multiple heat exchange units, and each heat exchange is single
Member includes that both ends are connected respectively to feed and are in charge of and the coiled pipe being in charge of that discharges.Charging be in charge of by elbow and charging straight tube and into
Expect manifold connections, discharging, which is in charge of, to be connect by elbow and discharging straight tube with discharge header pipe.It is molten when being passed through heat exchange into charging manifold
When salt, heat exchange fused salt enters charging and is in charge of by feeding straight tube and elbow, and the fused salt that then exchanges heat is assigned to every layer of coil pipe unit
In.After completing heat exchange in every layer of coil pipe unit, heat exchange fused salt enters discharging and is in charge of, and is then converged by elbow and discharging straight tube
Always to being discharged in discharge header pipe, entire heat exchanging process is completed.
Finally it should be noted that above example is only to illustrate the technical solution of the utility model, rather than to this reality
With the limitation of novel protected range, although being explained in detail to the utility model with reference to preferred embodiment, this field it is general
Lead to it will be appreciated by the skilled person that can be modified or replaced equivalently to the technical solution of the utility model, without departing from this
The spirit and scope of utility model technical solution.
Claims (8)
1. a kind of heat-exchanging component, including cylinder and circumferential multiple heat exchange units, multiple heat exchange units are arranged described
In cylinder, each heat exchange unit includes that both ends are connected respectively to charging and are in charge of and the coil pipe unit being in charge of that discharges, which is characterized in that
The charging, which is in charge of, to be connect by feeding-passage with charging manifold, and the discharging is in charge of to be connected by tapping channel and discharge header pipe
It connects, the charging is in charge of is in charge of vertical relative tilt arrangement with the discharging, and the charging is in charge of is in charge of upper end with the discharging
The distance between be less than the distance between its lower end.
2. heat-exchanging component according to claim 1, which is characterized in that the charging manifold include two disposed in parallel into
Expect that straight tube, two charging straight tubes are connected to by pipeline；The discharge header pipe includes two dischargings straight tube disposed in parallel, and two go out
Material straight tube is connected to also by pipeline.
3. heat-exchanging component according to claim 1 or 2, which is characterized in that the charging manifold and the discharge header pipe are inclined
Tiltedly it is arranged in horizontal plane.
4. heat-exchanging component according to claim 2, which is characterized in that the charging straight tube by it is multiple it is disposed in parallel into
Material channel is connected to charging and is in charge of, and the discharging straight tube is connected to discharging by multiple tapping channels disposed in parallel and is in charge of.
5. heat-exchanging component according to claim 4, which is characterized in that the feeding-passage is vertical with the charging straight tube to be set
It sets, the charging of each heat exchange unit, which is in charge of, to be connect with an at least feeding-passage；And/or
The tapping channel is vertically arranged with the discharging straight tube, and the discharging of each heat exchange unit, which is in charge of, to discharge at least one
Channel connects.
6. heat-exchanging component according to claim 4, which is characterized in that the feeding-passage and charging be in charge of between using curved
Head connection, is in tilted layout between the elbow and the normal of the cylinder；And/or
The tapping channel and discharging are connected between being in charge of using elbow, and cloth is tilted between the elbow and the normal of the cylinder
It sets.
7. heat-exchanging component according to claim 1 or 2, which is characterized in that the charging is in charge of is in charge of edge with the discharging
Multiple support elements are provided in short transverse.
8. a kind of fluidized-bed reactor, the charging manifold is arranged in the lower part of the cylinder, and the discharge header pipe is arranged in institute
The top of cylinder is stated, the inner barrel is equipped with heat-exchanging component, and the heat-exchanging component is described in any one of claim 1-7
Heat-exchanging component.
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| CN201820100466.2U CN207763557U (en) | 2018-01-22 | 2018-01-22 | A kind of heat-exchanging component and the fluidized-bed reactor comprising it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068240A (en) * | 2018-01-22 | 2019-07-30 | 宁波远东化工集团有限公司 | A kind of heat-exchanging component and the fluidized-bed reactor comprising it |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110068240A (en) * | 2018-01-22 | 2019-07-30 | 宁波远东化工集团有限公司 | A kind of heat-exchanging component and the fluidized-bed reactor comprising it |
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