CN109883247A - A kind of pulsation tube bank heat-exchanging component fuse salt heat-accumulator tank of intelligent control - Google Patents
A kind of pulsation tube bank heat-exchanging component fuse salt heat-accumulator tank of intelligent control Download PDFInfo
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- CN109883247A CN109883247A CN201910178558.1A CN201910178558A CN109883247A CN 109883247 A CN109883247 A CN 109883247A CN 201910178558 A CN201910178558 A CN 201910178558A CN 109883247 A CN109883247 A CN 109883247A
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Abstract
The present invention provides a kind of pulsation heat-exchange system of intelligent control, including heat-accumulator tank, pulse generating device, pulsation tube bank heat-exchanging component, regulating valve and by-passing valve, the pulsation tube bank heat-exchanging component setting is connect in heat-accumulator tank, and with pulse generating device；Pulse generating device connects the entrance of pulsation tube bank heat-exchanging component by entrance pipe, the outlet of pulsation tube bank heat-exchanging component connects pulse generating device by export pipeline, regulating valve is set on entrance pipe between pulse generating device and heat-accumulator tank, bypass line is arranged between export pipeline and entrance pipe, the bypass line entrance pipe tie point between regulating valve and heat-accumulator tank, the system also includes controller, pulse generating device, regulating valve, by-passing valve and controller carry out data connection.The pulsation heat-exchange system of intelligent control of the invention makes it possible to adjust the flow of Pulsating Flow as needed and whether open pulsation scale removal mode, further improves the intelligence of heat exchange.
Description
Technical field
The pulsation tube bank heat-exchanging component and its fuse salt of present invention heat exchanger technical field more particularly to a kind of intelligent control
Heat-accumulator tank.
Background technique
Shell-and-tube heat exchanger has very extensive application in industrial circles such as energy source and power, petrochemical industries, heat exchanger
Enhanced heat exchange technology is of great significance to energy-saving.Wherein passive facilitation heat transfer technology is not due to needing extraneous high-quality energy
Amount inputs and achievees the purpose that enhanced heat exchange, is current important research direction.
It is a kind of form of passive facilitation heat exchange using flow-induced heat transfer element vibration realizing enhanced heat exchange, can will exchanges heat
It is vibration induced to fluid in device strictly to prevent from being changed into the effective use to vibration, make the convection current of actuated element at low flow rates
The coefficient of heat transfer is greatly improved, and utilizes vibration suppression heat transfer element surface smut, lowers dirtiness resistance, realizes complex intensifying
Heat transfer.
The rapid development of heat exchanger and its relevant technologies Jing Guo recent decades, achieves encouraging progress, however one
A little long-term unsolved problems more show especially out.Flow-induced vibration and heating surface incrustation in heat exchanger are world's public affairs
The outstanding problem urgently to be resolved recognized.Flow-induced vibration will lead to the damage of violent noise and heating surface bank, heating surface bank
Surface dirt will cause huge energy and resources loss.It is impossible that tube bundle vibration is entirely prevented in heat exchanger, and is led to
The intensity for increasing heating surface bank is crossed the damage and the noise that prevent vibration to avoid tube bank, is not always effective.Utilize stream
The vibration realizing enhanced heat exchange of body induction heating surface bank is a kind of form of passive enhanced heat exchange, passes through effective benefit to vibration
With can inhibit heating surface incrustation while realizing enhanced heat exchange, reduce dirtiness resistance, realize compound strengthened processing.
" vibration inducing device for elastic tube bundle heat exchanger augmentation of heat transfer " disclosed in CN101738129B, in water inlet pipe
Upper setting and the one-to-one pulse piping of elastic tube bundle floating mass block, and turbulent is installed inside pulse piping, pass through fluid
It streams turbulent and generates the Pulsating Flow with some strength and frequency, the mass block of impact elasticity tube bank, induction elastic tube bundle vibration
It is dynamic.However, causing interior flow field to there is flowing " dead zone " due to the top sealing structure of this device, fluid flows into each branch
The flow of pulse piping and the stability of flowing are poor, and part pulse piping exit cannot generate Pulsating Flow, and generate Pulsating Flow
Intensity and frequency are inconsistent, cannot achieve expected vibration needed for enhanced heat exchange.To induce six row's elastic tube bundles in heat exchanger to shake
For six dynamic branch's vibration inducing devices, when entrance fluid media (medium) is water and flow velocity is 0.4m/s, by changing each section
Structural parameters, Pulsating Flow cannot be generated at least 1 pulsation flow tube, and generate pulsation intensity of flow in remaining pulsation flow tube
(by setting up monitoring point, fluid velocity is detected, with the intensity of the amplitude characterization Pulsating Flow of change in flow.) maximum relative error
Higher than 14.5%, Pulsating Flow frequency maximum relative error is higher than 5.0%.Enter pulse piping in addition, adjusting by pipeline valve
Fluid flow cannot solve the above problems.
The even distribution type pulsation flow generating apparatus that elastic tube bundle is vibration induced in heat exchanger disclosed in CN105135931A, uses
Following technical proposals: the device, including vertical tube, branch's bend pipe, diversion pipe, pulsation flow tube, turbulent and shell side water inlet pipe；Vertical tube
On the consistent branch's bend pipe of spacing is distributed with, be connected with diversion pipe on each branch's bend pipe, connection pulsation flow tube, arteries and veins on diversion pipe
Turbulent is provided in dynamic flow tube；The bottom end of vertical tube is arranged in shell side water inlet pipe.In use, above-mentioned even distribution type Pulsating Flow is occurred
One end of device is fixed on the upper cover of heat exchanger, and one end is suspended in exchanger base.Enter the fluid of vertical tube by controlling
Flow can generate Pulsating Flow uniform and with certain frequency and intensity in the outlet of each pulsation flow tube.Work as Pulsating Flow
Frequency close to elastic tube bundle certain rank intrinsic frequency when, elastic tube bundle can be induced by formation corresponding to the rank intrinsic frequency
Vibration.When flow velocity is lower, the frequency and intensity for generating Pulsating Flow are lower, elastic tube bundle can be induced with natural frequencies and
Formation vibration corresponding to it；When flow velocity is higher, the frequency and intensity for generating Pulsating Flow are higher, can induce elastic tube bundle with
High-order intrinsic frequency and its vibration of corresponding formation.In addition, in the manufacturing process of above-mentioned even distribution type pulsation flow generating apparatus,
The internal diameter of some branch's bend pipe, diversion pipe and/or flow tube of pulsing can be changed according to the actual use situation of heat exchanger, or changed
The size and/or shape of corresponding turbulent can control the frequency and intensity that the branch outlet generates Pulsating Flow, to control institute
The vibration of corresponding elastic tube bundle.
The problem of based on above-mentioned elastic tube bundle heat exchanger practical engineering application and be currently used for elastic tube bundle heat exchange
Deficiency existing for device vibration inducing device, above-mentioned elastic tube bundle heat exchanger are all individually to need individually to set using pulse tube
A vertical tube is set as pulse tube, so that entire elastic tube bundle heat exchanger internal structure is complicated, and influences internal flow
Flowing, and above-mentioned elastic tube bundle is connected in series structure, and pulse tube is arranged in floating mass block, also can not efficiently join
With heat exchange.Therefore it needs to improve above structure.
In addition, fuse salt heat storage technology is and to follow solid-solid inorganic salt or mixed inorganic heating and melting by fuse salt
Loop back path transmits the heat of storage, to realize the heat-accumulating heat-transfer function of fuse salt.Compared with traditional accumulation of heat working medium,
Fuse salt has good heat-transfer, use temperature range wide (from tens to one more than thousand degrees Celsius), the low, small investment of operating pressure etc.
A kind of advantage, it is considered to be ideal high temperature heat transfer accumulation of heat working medium.In recent years, with solar light-heat power-generation, advanced nuclear energy, remaining
Heat utilization and the fast development of district heating, fuse salt have obtained answering extensively as a kind of effective accumulation of heat and heat transfer medium
With.
Fused salt heat-accumulator tank is a kind of important equipment in solar light-heat power-generation or fused salt accumulation of heat region heat supply process.But
It is that there are volumes is big for this heat-accumulator tank, fused salt consumption is more, and electric heating or high temperature fluid heating are uneven, and fused salt thermal storage time is longer
The problems such as.Although the convective heat transfer different from those of surface coefficient of heat transfer corresponding to liquid Molten Salt Heat Transfer process and water is little,
It is in fused salt tank, the accumulation of heat of fused salt is realized by thermally conductive and free convection process, is certainly existed heat-accumulating process and is taken
Between longer, the problems such as accumulation of heat speed is slower.The accumulation of heat based on fuse salt and the intensity of diabatic process are how improved, accumulation of heat institute is reduced
It takes time, is to have to solve the problems, such as in large-scale energy-storage system.
Therefore, the present invention proposes a kind of fuse salt heat-accumulator tank of the pulsation tube bank heat-exchanging component of intelligent control simultaneously.Purport
In the intelligent control by the fuse salt heat-accumulator tank to pulsation tube bank heat-exchanging component, strengthen the conduction process of fused salt, while will be right
The free convection heat transfer answered is promoted to forced convection heat transfer, to improve the heat storage efficiency of fused salt, the time required to shortening accumulation of heat.
Summary of the invention
The present invention aiming at the shortcomings in the prior art, provide a kind of Novel structure pulsation tube bank heat-exchanging component, heat exchanger and
Fuse salt heat-accumulator tank can quickly provide heat exchange, reduce fouling, while improving heating efficiency.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of pulsation heat-exchange system of intelligent control, including heat exchanger, pulse generating device, pulsation tube bank heat-exchanging component,
Regulating valve and by-passing valve, the pulsation tube bank heat-exchanging component setting are connect in heat exchanger, and with pulse generating device；Pulsation
Generating device connects the entrance of pulsation tube bank heat-exchanging component by entrance pipe, and the outlet of pulsation tube bank heat-exchanging component passes through outlet
Regulating valve, bypass line is arranged on the entrance pipe between pulse generating device and heat exchanger in piping connection pulse generating device
It is arranged between export pipeline and entrance pipe, the bypass line is located at regulating valve and heat exchanger in the tie point of entrance pipe
Between, the system also includes controller, pulse generating device, regulating valve, by-passing valve and controller carry out data connection, described
Controller can control the opening and closing of the size and regulating valve, by-passing valve of pulse generating device frequency；Under normal operation, adjust
It saves valve to close, by-passing valve is opened, and fluid enters heat exchanger and exchanges heat；When carry out vibration scale removal or improve heat transfer effect
When, the by-passing valve of controller control at this time is closed, and regulating valve is opened, and controller controls electromagnetic pump and generates Pulsating Flow.
Preferably, the pulse generating device is solenoid valve.
Preferably, pulsation tube bank heat-exchanging component include coil pipe, import standpipe and outlet standpipe, the coil pipe be it is multiple,
Each coil pipe includes more arc-shaped heat exchanger tubes, and the end connection of adjacent heat exchange tubes makes more heat exchanger tubes form cascaded structure,
And the end of heat exchanger tube is made to form heat exchanger tube free end, import standpipe connects the import of first heat exchanger tube, exports standpipe
Connect the outlet of last root heat exchanger tube, which is characterized in that the import standpipe connects first heat exchanger tube by pulse piping
Import, the entrance connection pulsation flow generating apparatus of the import standpipe, for generating Pulsating Flow in heat exchanger tube.
Preferably, the heat exchanger is fuse salt heat-accumulator tank.
Preferably, the pulse generating device is solenoid valve.
Preferably, regulating valve is closed under normal operation, by-passing valve is opened, and fluid enters the progress of fused salt heat-accumulator tank
Heat exchange；When carrying out vibration scale removal or improving heat transfer effect, the by-passing valve of controller control at this time is closed, regulating valve
It opens, controller controls electromagnetic pump and generates Pulsating Flow.
Preferably, pulsation tube bank heat-exchanging component include coil pipe, import standpipe and outlet standpipe, the coil pipe be it is multiple,
Each coil pipe includes more arc-shaped heat exchanger tubes, and the end connection of adjacent heat exchange tubes makes more heat exchanger tubes form cascaded structure,
And the end of heat exchanger tube is made to form heat exchanger tube free end, import standpipe connects the import of first heat exchanger tube, exports standpipe
Connect the outlet of last root heat exchanger tube, which is characterized in that the import standpipe connects first heat exchanger tube by pulse piping
Import, the entrance connection pulsation flow generating apparatus of the import standpipe, for generating Pulsating Flow in heat exchanger tube.
Preferably, the pulse piping tilts upward the import of first heat exchanger tube of connection from import standpipe.
Preferably, pulse piping is connect with import standpipe by welding manner.
Preferably, the lower end of import standpipe is arranged in the entrance of import standpipe.
Preferably, multiple coil pipes are parallel-connection structures, there is independent inlet and outlet.
Preferably, the pulse piping is set as multiple, from the top down direction, arteries and veins along the short transverse of import standpipe
The caliber of dynamic pipe constantly becomes larger.
Preferably, the amplitude that the caliber of pulse piping constantly becomes larger is continuous along the direction from the top down of import standpipe
Increase.
Preferably, the pulse piping is set as multiple, from the top down direction, phase along the short transverse of import standpipe
The spacing of adjacent pulse piping constantly becomes smaller.
Preferably, along the direction from the top down of import standpipe, width that the spacing between adjacent pulses pipe constantly becomes smaller
Degree is continuous to be increased.
At least one is arranged in the heat exchanger and plants pulsation tube bank heat-exchanging component as elucidated before for a kind of heat exchanger.
Preferably, the heat exchanger is fuse salt heat-accumulator tank.
Preferably, heat-exchanging component is restrained in the multiple pulsation of setting in the heat-accumulator tank, heat-accumulator tank is arranged in one of them
Center heat-exchanging component and other peripheral heat-exchanging components for forming the central distribution around heat-accumulator tank.
Preferably, the flow of the Pulsating Flow of peripheral heat-exchanging component is less than the flow of the Pulsating Flow of center heat-exchanging component.
Preferably, the ratio of the flow of the Pulsating Flow of center heat-exchanging component and peripheral heat-exchanging component is by peripheral heat-exchanging component
The internal diameter of the spacing and heat-accumulator tank at center and the center of heat-accumulator tank determines.
The present invention has the advantage that
1) heat-exchange system for devising new fuse salt heat-accumulator tank, make it possible to as needed adjust Pulsating Flow flow with
And pulsation scale removal mode whether is opened, further improve the intelligence of heat exchange.
2) import standpipe connects the import of first heat exchanger tube by pulse piping, eliminates individual pulse piping, so that into
Mouth standpipe and pulse piping integrate, and realize that structure is simple, easy to control, the high technical effect of heat exchange efficiency.
3) by pulse piping along the variation of the size of short transverse setting caliber, so that pulse piping realizes difference according to height
Pulsating flow, realize and need enhanced heat transfer effect different according to different location, further targetedly improve heat exchange effect
Fruit reduces the formation of fouling.
4) pulse piping is pulsed along the variation of the size of short transverse setting spacing so that pulse piping is realized according to height
The suitable allocation of flow is realized and needs enhanced heat transfer effect different according to different location, further targetedly improves and change
Thermal effect reduces the formation of fouling.
5) will pulsation tube bank heat-exchanging component be applied in fuse salt heat-accumulator tank, and by its according to center annular distribution mode into
Row arrangement, further increases the accumulation of heat effect of fuse salt heat-accumulator tank, reduces fouling.
6) pulsating flow in multiple pulsation tube bank heat-exchanging component in coil pipe is rationally divided according to different positions
Cloth and optimization further increase the technical effect of pulsation heat exchange.Also the design for the fuse salt heat-accumulator tank of such structure provides
One optimal reference frame.
Detailed description of the invention:
Fig. 1 is pulsation coil arrangement schematic diagram of the invention.
Fig. 2 is pulsation flow generating apparatus schematic diagram of the invention.
Fig. 3 is pulsation coil pack schematic diagram of the invention.
Fig. 4 is the fuse salt heat-accumulator tank schematic diagram of built-in pulsation coil pipe of the invention.
Fig. 5 is the fuse salt heat-accumulator tank diagrammatic top view of built-in pulsation coil pipe of the invention.
Fig. 6 is the system diagram of the fused salt heat-accumulator tank course of work of the invention.
Fig. 7 is the dimensional structure schematic diagram of fused salt heat-accumulator tank internal heat component of the present invention.
In figure: 1. tank bodies, 2. shell-side outlets, 3. shell side inlets, 4. pulsation coil packs, 5. supports, 6-10 pulsation coil pipe
Component, 11. clump weights, 12. pulsation coil pipes, 13. pulse tubes, 14. tube side import standpipes, 15. heat exchanger tubes, 16. clump weights, 17.
Tube side exports standpipe, 18. heat-accumulator tanks, 19. waste heat utilization heat exchangers, 20. electromagnetic pumps, 21. regulating valves, 22. by-passing valves.
Specific embodiment
Fig. 1-3 illustrates a kind of pulsation tube bank heat-exchanging component 6, and the component includes coil pipe 12, import standpipe 14 and outlet
Standpipe 16, the coil pipe 12 are multiple, as shown in figure 3, multiple along short transverse setting, each coil pipe 12 includes arc-shaped
More heat exchanger tubes 15, the end connection of adjacent heat exchange tubes 15, make more heat exchanger tubes 15 form cascaded structure, and make heat exchanger tube
End formed heat exchanger tube free end the position of bearing block (Fig. 1 setting), the more heat exchanger tubes are along the same center of circle from circle
The heart is sequentially distributed to outside, and import standpipe 14 connects the import of the heat exchanger tube of outermost end, and outlet standpipe 17 connects changing for inner terminal
The outlet of heat pipe 15, the import standpipe 14 connect the import of outermost end heat exchanger tube, the import standpipe 14 by pulse piping 13
Entrance connection pulsation flow generating apparatus, for generating Pulsating Flow in heat exchanger tube 15, to further promote elastic heat exchanger tube
The vibration of beam, Lai Jinhang augmentation of heat transfer reduce fouling.
Multiple coil pipes 12 are parallel-connection structure, are arranged along the short transverse of import standpipe 14.
The fluid enters outermost end heat exchanger tube by pulse piping from the entrance of import standpipe 14, fluid flowing and
Under the impact of Pulsating Flow, heat-exchanging tube bundle generates vibration, then outermost end heat exchanger tube by the flowing inside heat exchanger tube finally by
The outlet flow of most inner side heat exchanger tube exports standpipe, finally by outlet standpipe outflow.
Compared with the existing technology, the present invention connects the import of first heat exchanger tube by import standpipe by pulse piping, saves
Individual pulse piping has been removed, so that import standpipe and pulse piping integrate, has realized that structure is simple, easy to control, heat exchange efficiency
High technical effect.In conjunction with external pulsation flow generating apparatus, may be implemented to control Pulsating Flow generation at any time.
Preferably, the pulse piping 13 tilts upward the import of connection outermost end heat exchanger tube 15 from import standpipe 14.It is logical
Such inclined design is crossed, generates compared with the Pulsating Flow under low flow velocity, obtains the Pulsating Flow operating condition of lower frequency.It obtains compared under low flow velocity
Controlled Pulsating Flow.
Preferably, pulse piping 13 is connect with import standpipe 14 by welding manner.
Preferably, the Way in of the import standpipe 16 is located at the lower end of import standpipe 16.By being arranged in lower end,
So that stream of pulses flows from the bottom to the top, it is sequentially filled dishful pipe, can guarantee that Pulsating Flow is sufficient filling with completely entire heat exchanger tube
It is interior, reduce heat exchange short circuit.
Preferably, as shown in Fig. 2, along import standpipe 14 short transverse, the pulse piping 13 is set as multiple.Edge
On the upper end to the direction of lower end of import standpipe 14, the caliber of pulse piping 13 constantly becomes larger.Because in experiment and practice
It was found that more toward lower end, the easier fouling of the heat exchanger tube of lower end, therefore passing through the pipe of this lower end with the continuous progress of heat exchange
Diameter is distributed larger, so that the flow of the Pulsating Flow of lower end distribution is also more, so that the frequency of vibration is also bigger, and scale removal
Effect is also better, is integrally remarkably reinforced so as to cause heat transfer effect.
Preferably, along on the upper end to the direction of lower end of import standpipe 14, width that the caliber of pulse piping constantly becomes larger
Degree is continuous to be increased.Because being found in experiment and practice, with the continuous progress of heat exchange, from top to bottom, the speed of fouling
Not directly proportional distribution is spent, the increasing degree of fouling also constantly becomes larger, therefore big by the caliber change amplitude of this lower end
It is some, so that the flow increasing degree of the Pulsating Flow of lower end distribution is also more, so that the frequency increasing degree of vibration is also got over
Greatly, scale removal effect is also better, is integrally remarkably reinforced so as to cause heat transfer effect.
Preferably, the pulse piping 13 is set as multiple, along import standpipe along the short transverse of import standpipe 14
On 14 upper end to the direction of lower end, the spacing of pulse piping 13 constantly becomes smaller.Because being found in experiment and practice, with changing
The continuous progress of heat, more toward lower end, heat transfer effect is better, therefore by the closeer of the pulse piping of this lower end distribution, so that
The flow of the Pulsating Flow of lower end distribution is also more, so that the frequency of vibration is also bigger, heat transfer effect is also better, so as to cause
Heat transfer effect is integrally remarkably reinforced.
Preferably, the spacing between pulse piping 13 constantly becomes along on the upper end to the direction of lower end of import standpipe 14
Small amplitude constantly increases.Because being found in experiment and practice, as the continuous progress of heat exchange is changed from top to bottom
The not directly proportional distribution of the increased speed of thermal effect, the amplitude of heat transfer effect also constantly become larger, therefore pass through this lower end
Distribution density amplitude of variation is larger, so that the flow increasing degree of the Pulsating Flow of lower end distribution is also more, so that vibration
Frequency increasing degree it is also bigger, heat transfer effect is also better, is integrally remarkably reinforced so as to cause heat transfer effect.
Preferably, the coil pipe 12 is set as multiple along the short transverse of import standpipe 14.
Preferably, a kind of heat exchanger is also claimed in the application, as shown in figure 4, at least one is arranged in the heat exchanger
A kind pulsation tube bank heat-exchanging component as described in prior figures 1-3.
Preferably, the heat exchanger is fuse salt heat-accumulator tank.
Preferably, as shown in figure 5, setting multiple pulsation tube bank heat-exchanging component 4-8 in the heat-accumulator tank, one of them
The center of heat-accumulator tank is set, center heat-exchanging component 6 is become, others surround the central distribution of heat-accumulator tank, become peripheral heat exchange
Component 7-10.It is designed by such structure, fluid in heat-accumulator tank can be made to sufficiently achieve vibration purpose, improve heat transfer effect.
Preferably, the flow of the Pulsating Flow of peripheral heat-exchanging component 7-10 is less than the stream of the Pulsating Flow of center heat-accumulator tank 6
Amount.By being designed in this way, so that center reaches bigger vibration frequency, forms center vibration source and reach more to influence surrounding
Good augmentation of heat transfer and scale removal effect.
Preferably, fluid will reach uniform vibration, and heat exchange is avoided to be unevenly distributed on same level heat exchange section.
Therefore the size by the pulsating flow in the different heat-exchanging component of reasonable distribution is needed.It is found through experiments that, center heat exchange group
Part and the allocation proportion of the flow of the Pulsating Flow of periphery tube bank heat-exchanging component are related with two key factors, one of them is exactly outer
Enclose between heat-exchanging component and heat-accumulator tank center spacing (center of circle in the center of circle and center heat-exchanging component of i.e. peripheral heat-exchanging component away from
From) and the diameter of heat-accumulator tank it is related.Therefore the present invention optimizes optimal pulsating flow according to a large amount of numerical simulations and experiment
Pro rate.
Heat-accumulator tank is circular cross-section, and inner wall radius is R, and the center of circle setting of the center heat-exchanging component is cut in heat-accumulator tank circle
The face center of circle, the distance in the center of circle of the circle center distance heat-accumulator tank circular cross-section of peripheral heat-exchanging component are L, adjacent peripheral heat-exchanging component
The center of circle carries out line with the circular cross-section center of circle respectively, and the angle that two lines are formed is A, the Pulsating Flow of single periphery heat-exchanging component
Amount is M2, and the pulsating flow of center heat-exchanging component is M1, then meets following require:
M1/M2=a* (R/L)2-b*(R/L)+c；
A, b, c are coefficients, wherein 0.107 < a < 0.109,0.574 <b < 0.575,2.94 < c < 2.95；
Preferably, 1.25 < R/L < 2.21；It is preferred that 1.26 < R/L < 2；
Preferably, 2 < M1/M2 < 2.5.It is preferred that 2.2 < M1/M2 < 2.4；
Preferably, wherein 35 ° < A < 80 °.
Preferably, surrounding distributed quantity is 4-5.
Preferably, R is 2000-3000 millimeters, preferably 2500mm；L is 1200-2400 millimeters, preferably
1800mm；The diameter of heat exchanger tube is 12-20 millimeters, preferably 16mm；The outermost diameter of pulsation coil pipe is 500-700 millimeters,
It is preferred that 600mm.The caliber of standpipe is 100-116 millimeter, and preferably 108 millimeters, the height of standpipe is 1.8-2.2 meters, preferably 2
Rice, the spacing of adjacent pulse tube is 80-120mm.It is preferred that 100 millimeters or so.
Total heating power is preferably 5000-8000W, further preferably 6500W.
Further preferably, a=0.108, b=0.5747, c=2.9445.
Fig. 5 is the fuse salt heat-accumulator tank overall plan schematic diagram of built-in pulsation coil pipe.Shell-side space is fuse salt in tank body.It is complete
It is flowed into fuse salt heat exchange equipment at the shell-side outlet 2 at the fuse salt after accumulation of heat from 1 top of tank body, is gone out from the shell side of tank body lower end
Mouth 3 flow back into fused salt tank.Five groups of pulsation coil packs are arranged in tank, the vibration realizing by Pulsating Flow induced synthesis in pipe is strong
Change the diabatic process of liquid fused salt.Support 5 needs to be designed according to the actual situation, is usually convenient for salt discharge, can also be by tank
Body 1 is partially disposed in below ground.
Pulsation coil pipe 12 is attached by screw thread with pulse tube 11.Pulsation coil pipe after connection being capable of luring in Pulsating Flow
It leads down, carries out controllable vibration.The frequency and amplitude of vibration are common by the frequency of Pulsating Flow and the structure feature of pulsation coil pipe
It determines.
Fig. 1 is pulsation coil arrangement schematic diagram.Pulsation coil pipe is attached with heat exchanger tube 15 by clump weight 11,16, is formed
One complete monitor loop.The material of heat exchanger tube 15 is usually stainless steel, copper pipe etc. simultaneously.Tubing used, heat exchanger tube 15
The parameters such as bending radius, size directly determine the vibration characteristics of pulsation coil pipe, need the classification and work according to fused salt outside pipe
Make warm area and carries out matched design.
Fig. 6 is the system diagram of the fused salt heat-accumulator tank course of work.The accumulation of heat of heat-exchanging component fuse salt is restrained in the pulsation of intelligent control
System, including heat-accumulator tank 18, pulse generating device 20, pulsation tube bank heat-exchanging component, regulating valve 21 and by-passing valve 22, the pulsation
Tube bank heat-exchanging component setting is connect in heat-accumulator tank, and with pulse generating device；Pulse generating device is connected by entrance pipe
The entrance of pulsation tube bank heat-exchanging component is connect, the outlet of pulsation tube bank heat-exchanging component connects pulse generating device by export pipeline,
Regulating valve is set on the entrance pipe between pulse generating device and heat-accumulator tank, and bypass line is arranged in export pipeline and inlet tube
Between road, the bypass line is located at regulating valve and heat-accumulator tank in the tie point of entrance pipe.
Intraductal working medium needed for the pulsation coil pipe arranged in heat-accumulator tank 18 is usually high-temperature water, can be by the waste heat made
Occurred using heat exchanger 19.High-temperature water passes through electromagnetic pump 20, generates Pulsating Flow.The regulating valve 21 configured on pipeline, for adjusting
The time of the generation of Pulsating Flow and generation intensity realize the vibration of tube bank so that induction and control pulsation coil pipe are realized and be expected vibration
Dynamic enhanced heat exchange, improves heat exchange efficiency.The by-passing valve 22 of configuration, suitable for not needing Pulsating Flow vibration operating condition.This design energy
Solid-state fused salt is enough reduced to act on the flutter failure of pulsation coil pipe.
The system also includes controller, electromagnetic pump, regulating valve 21, by-passing valve 22 and controller carry out data connection, institute
Stating controller can control the size and regulating valve 21 of electromagnetism pump frequency, the opening and closing of by-passing valve 22 and amplitude size.
Under normal operation, regulating valve 21 is closed, and by-passing valve 22 is opened, and fluid normally enters fused salt heat-accumulator tank, passes through
The impact flow pulsation tube bundle vibration of fluid.When carrying out vibration scale removal or improving heat transfer effect, such as exchange heat
Efficiency decline, the by-passing valve of controller control at this time are closed, and regulating valve 21 is opened, and controller controls electromagnetic pump and generates Pulsating Flow.
Certainly preferably, heat exchange can be carried out by the way of Pulsating Flow always
Controller can according to need the size of control Pulsating Flow.Such as when heat-exchanging component vibrating noise is excessive, controller
The frequency or flow for automatically controlling Pulsating Flow reduce, and avoid equipment damage.
By above-mentioned intelligent control, frequency and speed that Pulsating Flow is generated and generated may be implemented.
Although the present invention has been disclosed in the preferred embodiments as above, present invention is not limited to this.Any art technology
Personnel can make various changes or modifications, therefore protection scope of the present invention is answered without departing from the spirit and scope of the present invention
When being defined by the scope defined by the claims..
Claims (4)
1. a kind of pulsation heat-exchange system of intelligent control, including heat exchanger, pulse generating device, pulsation tube bank heat-exchanging component, tune
Valve and by-passing valve are saved, the pulsation tube bank heat-exchanging component setting is connect in heat exchanger, and with pulse generating device；Pulsation hair
Generating apparatus connects the entrance of pulsation tube bank heat-exchanging component by entrance pipe, and the outlet of pulsation tube bank heat-exchanging component passes through outlet
Road connects pulse generating device, regulating valve is arranged on the entrance pipe between pulse generating device and heat exchanger, bypass line is set
Set between export pipeline and entrance pipe, the bypass line the tie point of entrance pipe be located at regulating valve and heat exchanger it
Between, the system also includes controller, pulse generating device, regulating valve, by-passing valve and controller carry out data connection, the control
Device processed can control the opening and closing of the size and regulating valve, by-passing valve of pulse generating device frequency；Under normal operation, adjust
Valve is closed, and by-passing valve is opened, and fluid enters heat exchanger and exchanges heat；When carrying out vibration scale removal or improve heat transfer effect
When, the by-passing valve of controller control at this time is closed, and regulating valve is opened, and controller controls electromagnetic pump and generates Pulsating Flow.
2. the pulsation heat-exchange system of intelligent control as described in claim 1, which is characterized in that the pulse generating device is electricity
Magnet valve.
3. the pulsation heat-exchange system of intelligent control as described in claim 1, pulsation tube bank heat-exchanging component includes that coil pipe, import are vertical
Pipe and outlet standpipe, the coil pipe be it is multiple, each coil pipe includes more arc-shaped heat exchanger tubes, and the end of adjacent heat exchange tubes connects
It is logical, so that more heat exchanger tubes is formed cascaded structure, and the end of heat exchanger tube is made to form heat exchanger tube free end, the connection of import standpipe
The import of first heat exchanger tube, outlet standpipe connect the outlet of last root heat exchanger tube, which is characterized in that the import standpipe is logical
Cross the import that pulse piping connects first heat exchanger tube, the entrance connection pulsation flow generating apparatus of the import standpipe, for changing
Pulsating Flow is generated in heat pipe.
4. the pulsation heat-exchange system of intelligent control as described in claim 1, the heat exchanger is fuse salt heat-accumulator tank.
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