CN105972339A - Preheating and solidification-preventing conveying pipeline structure - Google Patents
Preheating and solidification-preventing conveying pipeline structure Download PDFInfo
- Publication number
- CN105972339A CN105972339A CN201610543010.9A CN201610543010A CN105972339A CN 105972339 A CN105972339 A CN 105972339A CN 201610543010 A CN201610543010 A CN 201610543010A CN 105972339 A CN105972339 A CN 105972339A
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- China
- Prior art keywords
- solidification
- preheating
- conveyance conduit
- conduit structure
- pipeline
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L53/00—Heating of pipes or pipe systems; Cooling of pipes or pipe systems
- F16L53/30—Heating of pipes or pipe systems
- F16L53/34—Heating of pipes or pipe systems using electric, magnetic or electromagnetic fields, e.g. using induction, dielectric or microwave heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L59/00—Thermal insulation in general
- F16L59/06—Arrangements using an air layer or vacuum
- F16L59/065—Arrangements using an air layer or vacuum using vacuum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/08—Pipe-line systems for liquids or viscous products
- F17D1/16—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity
- F17D1/18—Facilitating the conveyance of liquids or effecting the conveyance of viscous products by modification of their viscosity by heating
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Pipe Accessories (AREA)
Abstract
The invention relates to a preheating and solidification-preventing conveying pipeline structure which comprises an inner pipeline and an outer pipeline. The end portion of the inner pipeline and the end portion of the outer pipeline are in sealed connection. A closed cavity structure is defined by the inner pipeline and the outer pipeline. A vacuum layer is formed in the cavity structure. The inner pipeline is a steel pipeline. The preheating and solidification-preventing conveying pipeline structure further comprises an electric heating circuit used for heating the inner pipeline after being electrified. The electric heating circuit is electrically connected with the inner pipeline. The steel inner pipeline is used as a resistor, electric energy is provided for the inner pipeline through the electric heating circuit, electric energy heating is conducted on the inner pipeline, and the preheating and solidification-preventing conveying pipeline structure can reach the needed temperature within a short time. The preheating and solidification-preventing conveying pipeline structure is convenient to operate, short in heating time, even in heating effect, capable of effectively reducing solidification of the pipelines and capable of prolonging the service life of the pipelines.
Description
Technical field
The present invention relates to photo-thermal power generation field, particularly relate to a kind of preheating and the conveyance conduit structure of Anti-solidification.
Background technology
In recent years, along with the development of global economy, traditional energy such as coal, oil, natural gas etc. are due to storage
Measuring limited, energy supply and demand has begun to show contradiction.People begin one's study various regenerative resource, wind energy, underground heat
Energy, Hydrogen Energy, solar energy etc. are increasingly subject to people's attention, and the most most potential is the profit of solar energy
With.Solar thermal utilization is that current technology is the most ripe, conversion efficiency is higher, the mode of less expensive it
One.Solar light-heat power-generation due to have can energy storage, can peak regulation, can realize generating electricity continuously, the quality of power supply with
Just the same and the existing electrical network of thermoelectricity is completely compatible, can based on electric power realize the replacement etc. to thermoelectricity
Feature, becomes the important directions of new forms of energy development.Heat transmission technology is the crucial skill of solar energy thermal-power-generating
Art.The heat-transfer working medium used during solar energy thermal-power-generating at present is mainly water, hot-air, conduction oil, fused salt
Deng, fused salt owing to higher temperature can be reached, there is good heat storage capacity simultaneously, it has also become future
Heat-transfer working medium most potential in photo-thermal power generation.But, when fused salt uses as heat-transfer working medium, due to it relatively
High fusing point, easily solidifies when flowing through cold pipeline, can dispel the heat simultaneously, the most easily send out when fused salt runs in the duct
Raw solidification, pipeline can be caused certain injury by the fused salt of solidification, shortens the service life of pipeline.
Summary of the invention
It is an object of the invention to propose a kind of easy to operate, heat time heating time is short, heats preheats uniformly
And the conveyance conduit structure of Anti-solidification, it is possible to effectively reduce pipeline solidification, extend the service life of pipeline.
For reaching this purpose, the present invention by the following technical solutions:
A kind of preheating and the conveyance conduit structure of Anti-solidification, including interior conduit and Outer Tube, said inner tube road and
The end-enclosed of Outer Tube connects, and said inner tube road and Outer Tube surround the cavity structure of closing, described cavity
Forming vacuum layer in structure, said inner tube road is steel pipe, the conveyance conduit knot of described preheating and Anti-solidification
Structure also includes the electric heating circuit after energising to the heating of said inner tube road, and described electric heating circuit is with described
Interior conduit electrically connects.
Wherein, the end of said inner tube road and Outer Tube is welded by flange closure, said inner tube road and outer tube
Road is concentric pipe or non-concentric pipeline.
Wherein, electric heating circuit includes the electrode being arranged at the entrance location of interior conduit.
Wherein, the inwall of described Outer Tube arranges bright finish structure.
Wherein, described Outer Tube arranges temperature sensor.
Wherein, the inside in said inner tube road arranges flow transducer.
Wherein, the opposite sides face of the corner location of described Outer Tube is respectively provided with temperature sensor；And/or
The corner location in said inner tube road is oppositely arranged flow transducer.
Wherein, the conveyance conduit structure of described preheating and Anti-solidification also includes for according to described temperature sensor
The temperature signal of detection controls the control circuit whether described electric heating circuit is energized, and described control circuit is respectively
Electrically connect with described electric heating circuit, described temperature sensor.
Wherein, the conveyance conduit structure of described preheating and Anti-solidification also includes for according to described flow transducer
The flow signal of detection controls the control circuit whether described electric heating circuit is energized, and described control circuit is respectively
Electrically connect with described electric heating circuit, described flow transducer.
Wherein, described cavity structure connects pressure vacuum gauge.
The beneficial effects of the present invention is: a kind of preheating and the conveyance conduit structure of Anti-solidification, including interior conduit
And Outer Tube, the end-enclosed of said inner tube road and Outer Tube connects, and said inner tube road and Outer Tube surround envelope
The cavity structure closed, forms vacuum layer in described cavity structure, said inner tube road is steel pipe, described pre-
The conveyance conduit structure of heat and Anti-solidification also includes after energising to the electrical heating electricity of said inner tube road heating
Road, described electric heating circuit electrically connects with said inner tube road.With the interior conduit of steel as resistance, added by electricity
Heater circuit provides electric energy for interior conduit, and interior conduit is carried out electric energy heating, it is possible to allow preheating within a short period of time
And the conveyance conduit structure of Anti-solidification reaches the temperature of needs.Flow in pipeline loop with traditional hot blast that allows,
Heat loss is big and preheats uneven hot-air pre-heating system and compares, the conveyance conduit structure of this preheating and Anti-solidification,
Easy to operate, heat time heating time is short, heats is uniform, it is possible to effectively reduce pipeline solidification, extend pipeline
Service life.
Accompanying drawing explanation
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, the embodiment of the present invention will be retouched below
In stating, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
Some embodiments of the present invention, for those of ordinary skill in the art, are not paying creative work
Under premise, it is also possible to content according to embodiments of the present invention and these accompanying drawings obtain other accompanying drawing.
Fig. 1 is the preheating that provides of the embodiment of the present invention and the sectional view of conveyance conduit structure of Anti-solidification.
Description of reference numerals is as follows:
1-interior conduit；2-Outer Tube；3-vacuum layer；4-temperature sensor；5-flow transducer；
6-pressure vacuum gauge.
Detailed description of the invention
Technical scheme and the technique effect reached for making to present invention solves the technical problem that, using are more clear
Chu, is described in further detail the technical scheme of the embodiment of the present invention below in conjunction with accompanying drawing, it is clear that
Described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on this
Embodiment in bright, those skilled in the art obtained under not making creative work premise all its
His embodiment, broadly falls into the scope of protection of the invention.
Refer to Fig. 1, it is the preheating that provides of the embodiment of the present invention and the cuing open of conveyance conduit structure of Anti-solidification
View, the conveyance conduit structure of this preheating and Anti-solidification can be applicable to all kinds of solar light-heat power-generation and other pipes
Road conveying equipment.
The conveyance conduit structure of this preheating and Anti-solidification, including interior conduit 1 and Outer Tube 2, said inner tube road 1
Connecting with the end-enclosed of Outer Tube 2, said inner tube road 1 and Outer Tube 2 surround the cavity structure of closing,
Forming vacuum layer 3 in described cavity structure, said inner tube road 1 is steel pipe, described preheating and Anti-solidification
Conveyance conduit structure also includes the electric heating circuit after energising to said inner tube road 1 heating, and described electricity adds
Heater circuit electrically connects with said inner tube road 1.
The conveyance conduit structure of described preheating and Anti-solidification uses double-skin duct design, it is preferable that double-skin duct
Interlayer in add dedicated multi-layered heat insulation composite material and keep high vacuum state, high insulating effect.
Preheating that the present invention provides and the conveyance conduit structure of Anti-solidification, with the interior conduit 1 of steel as resistance,
There is provided electric energy by electric heating circuit for interior conduit 1, interior conduit 1 is carried out electric energy heating, it is possible to shorter
The conveyance conduit structure allowing preheating and Anti-solidification in time reaches the temperature needed.Allow hot blast at pipe with traditional
Flowing in loop, road, heat loss is big and preheats uneven hot-air pre-heating system and compares, this preheating and Anti-solidification
Conveyance conduit structure, easy to operate, heat time heating time is short, heats is uniform, it is possible to effectively to reduce pipeline
Solidification, extends the service life of pipeline.
Preferably, it is possible to realize the electric heating circuit of electric energy heating function, belong to the common knowledge of this area,
Concrete circuit structure is the most no longer illustrated and is repeated.
Wherein, the end of said inner tube road 1 and Outer Tube 2 is welded by flange closure, said inner tube road 1
It is concentric pipe or non-concentric pipeline with Outer Tube 2.
Flange (Flange), again call orchid flange or bead, be phase between modal pipe and pipe
The part connected, the connection between pipe end.Flange joint or bump joint, refer to by flange, pad
Sheet and bolt three are connected with each other the releasable connection as one group of combined sealing structure.
Preferably, said inner tube road 1 and Outer Tube 2 are concentric pipe.This structure makes interior conduit 1 He
The heat of Outer Tube 2 is more evenly distributed, it is to avoid because the coefficient expanded with heat and contract with cold in local is different, cause appearance pre-
The quality problems of the conveyance conduit structure of heat and Anti-solidification, extend the conveyance conduit structure of preheating and Anti-solidification
Service life.
Wherein, described electric heating circuit includes the electrode being arranged at the entrance location of interior conduit 1.
Preferably, electrode is set at the entrance location of interior conduit 1, the electrical heating electricity of described electric heating circuit
Pressure not higher than 45V, depending on the output electric current concrete condition according to preheating and the conveyance conduit structure of Anti-solidification, one
As between 2-5kA.
Wherein, the inwall of described Outer Tube 2 arranges bright finish structure.
By the bright finish structure of described Outer Tube 2 towards interior conduit 1, it is possible to play more preferable reflecting effect.In heat
In amount diffusion process, bright finish structure has excellent reflection to heat radiation, reduces the consumption of heat,
Improve the insulation effect of Outer Tube 2, and effectively extend the use of the conveyance conduit structure of preheating and Anti-solidification
Life-span.
It should be noted that described bright finish structure is to use flexible metal flexible axle to enter as carrier power polishing processes
Row polishing.Metal flexible axle is the flexible shaft (mandrel) by an internal transmission power and outer surface
Several layers of metal steel wire integument composition.Metal flexible axle can arbitrarily bend in the bending radius limited, flexible axle
Entirety belongs to flexible shaft.The mandrel of metal flexible axle transmits power by rotation, and the outer surface of flexible axle wraps up
Layer is geo-stationary.Two ends can reach 1200 with metal flexible axle rotating speed when transmitting power of bearings
r/min.The advantage of this polishing processes is that transmission power is steady.
Wherein, described Outer Tube 2 arranges temperature sensor 4.
Temperature sensor 4 (temperature transducer) refers to experience temperature and be converted into available defeated
Go out the sensor of signal.Temperature sensor 4 is the core of temperature measuring instrument, various in style.By surveying
Amount mode can be divided into contact and contactless two big classes, can divide according to sensor material and electron component characteristic
For thermal resistance and thermocouple two class.
Wherein, the inside in said inner tube road 1 arranges flow transducer 5.
Flow transducer 5 is the sensor of the gas flow measuring inhalation flow sensor 5.In order to obtain standard
True flow measurement value, it is necessary to the test environment keeping flow transducer 5 is airtight, does not have interference gas
The existence of body.If the mensuration environment of flow transducer 5 is closed not, then flow transducer 5 must not
To correct air inflow signal, thus cannot normally carry out flow value mensuration, the most further after impact
Continuous control process.
Wherein, the opposite sides face of the corner location of described Outer Tube 2 is respectively provided with temperature sensor 4；With/
Or the corner location in said inner tube road 1 is oppositely arranged flow transducer 5.
Preferably, the both sides tube wall of said inner tube road 1 corner location is oppositely arranged flow transducer 5.Described
The corner location of the conveyance conduit structure of preheating and Anti-solidification tends to produce pipeline solidification, sets around the corner
Put temperature sensor 4 and/or flow transducer 5, be conducive to finding in time pipeline solidification phenomenon.In position, turning
The place of putting is oppositely arranged temperature sensor 4 and/or flow transducer 5, is conducive to finding near interior conduit 1 in time
The temperature difference of the two sides of position and close Outer Tube 2 position or difference in flow, further embody not
The environmental difference of ipsilateral, reminds pipeline solidification phenomenon in time, extends the conveyance conduit knot of preheating and Anti-solidification
The service life of structure.
Certainly, the horizontal position of described Outer Tube 2 can also arrange temperature sensor 4；And/or in described
The horizontal level place of putting of pipeline 1 can also arrange flow transducer 5.Described temperature sensor 4 and flow sensing
Device 5 can enter according to concrete application scenarios at the set-up mode of the conveyance conduit structure of described preheating and Anti-solidification
Row design, the most no longer citing repeat.
Wherein, the conveyance conduit structure of described preheating and Anti-solidification also includes for according to described temperature sensor
The temperature signal of 4 detections controls the control circuit whether described electric heating circuit is energized, and described control circuit is divided
Do not electrically connect with described electric heating circuit, described temperature sensor 4.
Wherein, the conveyance conduit structure of described preheating and Anti-solidification also includes for according to described flow transducer
The flow signal of 5 detections controls the control circuit whether described electric heating circuit is energized, and described control circuit is divided
Do not electrically connect with described electric heating circuit, described flow transducer 5.
Wherein, described cavity structure connects pressure vacuum gauge 6.
Pressure vacuum gauge 6 is arranged on the import or export of the conveyance conduit structure of preheating and Anti-solidification, with described
Cavity structure connects, for monitoring the vacuum between interior conduit 1 and Outer Tube 2.
The preheating of embodiment of the present invention offer and the conveyance conduit structure of Anti-solidification, use inside and outside double-skin duct to set
Meter, at the outer sheathed concentric or nonconcentric(al) Outer Tube 2 of interior conduit 1, interior conduit 1 and Outer Tube 2 pass through
Flange welding together, and carries out evacuation process by exporting to be connected with vacuum pump, to reduce interior conduit
1 carries out the heat loss in heating process, reach in heating quick, uniform and system operation to preheating and
The insulation of the conveyance conduit structure of Anti-solidification, prevents heat transfer substance in the conveyance conduit structure of preheating and Anti-solidification
Solidification occurs.After evacuation, interior conduit 1 and Outer Tube 2 are sealed, and by electric heating circuit and interior conduit 1
Electrical connection, with the interior conduit 1 of steel as resistance, provides low-voltage, an electric energy for high electric current for it, right
Interior conduit 1 carries out electric energy heating.Owing to interior conduit 1 is steel pipe, without medium, therefore, interior conduit 1 is along length
Degree direction homogeneous heating, heat time heating time is short.Simultaneously at preheating and the horizontal position of the conveyance conduit structure of Anti-solidification
Temperature sensor 4 it is provided with, when preheating and the conveyance conduit structure of Anti-solidification at the place of putting and/or corner location
When temperature is less than a certain design temperature, signal is just transmitted in temperature sensor 4, and electric heating circuit is according to this transmission
Signal enabling electric heating function.Inside in preheating and the conveyance conduit structure of Anti-solidification arranges flow biography simultaneously
Sensor 5, prevents the conveyance conduit inside configuration of preheating and Anti-solidification from occurring because of local stoppages, temperature being passed
The place that sensor 4 is not detected by, when the flow value of flow transducer 5 detection occurs abnormal, electrical heating
Circuit starts electric heating function according to this abnormal signal.In guaranteeing to prevent by temperature and flow dual indexes
Heat transfer substance solidification in pipeline 1.The inwall of Outer Tube 2 is processed by shot blasting simultaneously, designs a light
Face structure so that it is possess reflection, stops heat radiation, improves the conveyance conduit of whole preheating and Anti-solidification
The heat insulation effect of structure.And when interior conduit 1 occur rupturing cause heat transfer substance excessive time, making of Outer Tube 2
With playing effective safety protection function.And the use of Outer Tube 2 is also possible to prevent the harm such as electric leakage.
The preheating of embodiment of the present invention offer and the conveyance conduit structure of Anti-solidification, use inside and outside twin flue to set
Meter, and evacuation process is made in the closing space of interior conduit 1 and Outer Tube 2.With the interior conduit 1 of steel it is
Resistance, provides low-voltage, an electric energy for high electric current for it, interior conduit 1 is carried out electric energy heating.In advance
The outside of the conveyance conduit structure of heat and Anti-solidification arranges temperature sensor 4, in preheating and the conveying of Anti-solidification
The inside of pipeline configuration arranges flow transducer 5.The conveyance conduit structure of this preheating and Anti-solidification, with original
Hot blast (steam) pre-heating system is compared, investment and operating cost is low, fault is few, equipment is simple, heat time
Between short, it is possible to reach within a short period of time preheating and Anti-solidification conveyance conduit structural priming needed for temperature.
(hot-air pre-heating system is due to heat waste when hot blast flows in pipeline loop compared with traditional hot-air pre-heating system
Losing very big, therefore pipeline pre-heat effect is uneven) preheating is more uniformly distributed.And intelligence sensor (temperature sensing
Device 4 and flow transducer 5) use ensure that the safety of conveyance conduit structure of preheating and Anti-solidification.
The preheating of embodiment of the present invention offer and the conveyance conduit structure of Anti-solidification, be a kind of heating arrangement letter
Single, easy to operate, preheating time is short, preheating is uniform, safety and intelligentized structure, it achieves pipeline
Heating and monitoring conduit running in real time the highly intelligent purpose independently realizing pipeline Anti-solidification.This preheating and
The conveyance conduit structure of Anti-solidification uses electric heating circuit, and temperature controls simple and convenient, conveniently starts and stops
Only, possesses high controllability, it is possible to keep high-quality.And the conveyance conduit structure of this preheating and Anti-solidification possesses
Good working environment, compares with traditional combustion furnace, and waste heat and the steam of discharge are the most less, and nothing
Pollutant emission, it is possible to the cleannes of maintenance work environment.Electric heating circuit volume is little, lightweight, easily grasp
Work, shockproof, noiselessness, it is achieved automatically monitoring, the low-voltage of use can ensure that safety.
The preheating of embodiment of the present invention offer and the conveyance conduit structure of Anti-solidification, use electrically heated method pair
Pipeline preheats, and invests and operating cost is low, fault is few, equipment is simple, heat time heating time is short, it is possible to
Reaching the temperature of the conveyance conduit structural priming of preheating and Anti-solidification in short period, preheating is more uniformly distributed, row
The waste heat and the steam that go out are few, and non-pollutant discharge, it is possible to maintain the working environment of cleaning；In using
Outer bilayer sleeve, it is ensured that safety when heating runs with fused salt.
Embodiment of the present invention offer one is easy to operate, heat time heating time is short, heats preheats uniformly and prevents
The conveyance conduit structure of solidification, it is possible to effectively reduce pipeline solidification, extend the service life of pipeline.
Above content is only presently preferred embodiments of the present invention, for those of ordinary skill in the art, according to this
The thought of invention, the most all will change, and this specification content is not
It is interpreted as limitation of the present invention.
Claims (10)
1. a preheating and the conveyance conduit structure of Anti-solidification, it is characterised in that include interior conduit and outer tube
Road, the end-enclosed of said inner tube road and Outer Tube connects, and said inner tube road and Outer Tube surround the sky of closing
Cavity configuration, forms vacuum layer in described cavity structure, and said inner tube road is steel pipe, described preheating and anti-
The conveyance conduit structure of solidification also includes the electric heating circuit after energising to the heating of said inner tube road, described
Electric heating circuit electrically connects with said inner tube road.
The conveyance conduit structure of preheating the most according to claim 1 and Anti-solidification, it is characterised in that
The end of said inner tube road and Outer Tube is welded by flange closure, and said inner tube road and Outer Tube are concentric tube
Road or non-concentric pipeline.
The conveyance conduit structure of preheating the most according to claim 1 and Anti-solidification, it is characterised in that
Described electric heating circuit includes the electrode being arranged at the entrance location of interior conduit.
The conveyance conduit structure of preheating the most according to claim 1 and Anti-solidification, it is characterised in that
The inwall of described Outer Tube arranges bright finish structure.
The conveyance conduit structure of preheating the most according to claim 1 and Anti-solidification, it is characterised in that
Described Outer Tube arranges temperature sensor.
The conveyance conduit structure of preheating the most according to claim 1 and Anti-solidification, it is characterised in that
The inside in said inner tube road arranges flow transducer.
The conveyance conduit structure of preheating the most according to claim 1 and Anti-solidification, it is characterised in that
The opposite sides face of the corner location of described Outer Tube is respectively provided with temperature sensor；And/or said inner tube road
Corner location be oppositely arranged flow transducer.
The conveyance conduit structure of preheating the most according to claim 5 and Anti-solidification, it is characterised in that
The conveyance conduit structure of described preheating and Anti-solidification also includes the temperature for detecting according to described temperature sensor
Signal controls the control circuit whether described electric heating circuit is energized, and described control circuit adds with described electricity respectively
Heater circuit, described temperature sensor electrical connection.
The conveyance conduit structure of preheating the most according to claim 6 and Anti-solidification, it is characterised in that
The conveyance conduit structure of described preheating and Anti-solidification also includes the flow for detecting according to described flow transducer
Signal controls the control circuit whether described electric heating circuit is energized, and described control circuit adds with described electricity respectively
Heater circuit, described flow transducer electrically connect.
The conveyance conduit structure of preheating the most according to claim 1 and Anti-solidification, it is characterised in that
Described cavity structure connects pressure vacuum gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610543010.9A CN105972339A (en) | 2016-07-11 | 2016-07-11 | Preheating and solidification-preventing conveying pipeline structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610543010.9A CN105972339A (en) | 2016-07-11 | 2016-07-11 | Preheating and solidification-preventing conveying pipeline structure |
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| CN105972339A true CN105972339A (en) | 2016-09-28 |
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| CN201610543010.9A Pending CN105972339A (en) | 2016-07-11 | 2016-07-11 | Preheating and solidification-preventing conveying pipeline structure |
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| CN110529739A (en) * | 2019-09-06 | 2019-12-03 | 鞍钢化学科技有限公司 | Easy setting medium tube heating method and heating device |
| CN111577421A (en) * | 2020-04-30 | 2020-08-25 | 台州睿通车业有限公司 | Low-loss long-life oil pump and control method thereof |
| CN111824791A (en) * | 2020-06-30 | 2020-10-27 | 广东东德科技股份有限公司 | PC panel heating and feeding device |
| CN111873369A (en) * | 2020-08-05 | 2020-11-03 | 台州金龙大丰水暖股份有限公司 | PVC pipe extrusion accelerating device and control method thereof |
| CN112628514A (en) * | 2020-12-25 | 2021-04-09 | 武汉联德化学品有限公司 | Liquid phosphorus supply system and method for keeping stable supply of liquid phosphorus |
| CN114294569A (en) * | 2021-12-21 | 2022-04-08 | 锡林郭勒盟山金阿尔哈达矿业有限公司 | High-pressure warm air preheating device for long-distance pipeline in alpine region |
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Application publication date: 20160928 |