CN109131398A - The rail carriages electric heater of high security - Google Patents
The rail carriages electric heater of high security Download PDFInfo
- Publication number
- CN109131398A CN109131398A CN201811026187.7A CN201811026187A CN109131398A CN 109131398 A CN109131398 A CN 109131398A CN 201811026187 A CN201811026187 A CN 201811026187A CN 109131398 A CN109131398 A CN 109131398A
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- China
- Prior art keywords
- electric heater
- high security
- rail carriages
- temperature
- bottom plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D27/00—Heating, cooling, ventilating, or air-conditioning
- B61D27/0036—Means for heating only
- B61D27/0045—Electric heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Heating (AREA)
Abstract
This application involves a kind of rail carriages electric heaters of high security; including rail carriages electric heater electrothermal tube, terminal box, blower, cover plate, shell, temperature protector; the temperature protector includes temperature controller, fusible link and filler, which coats fusible link；The filler is polyester fiber, which is modified copolyester slice melt spinning to be prepared, also, modified copolyester slice is to be prepared by addition compound additive using situ aggregation method.
Description
Technical field
This application involves heater technical field more particularly to a kind of rail carriages electric heaters of high security.
Background technique
City rail compartment electric heater is for heating environment temperature, using thermodynamic fluid principle equably band
Generated huge heat in electrical heating elements work is walked, element is made to reach suitable temperature.
When the temperature of surrounding reduces, the air themperature of surrounding is lower, and city rail compartment electric heater provides heat member
Part is slow under field conditions (factors), therefore the rate of heat dispation for improving electrothermal tube is very important.
Summary of the invention
In order to one of at least solve the above problems, the present invention is intended to provide a kind of rail carriages electric heating of high security
Device.
A kind of rail carriages electric heater of high security is provided in the embodiment of the present invention, including rail carriages electricity adds
Hot device electrothermal tube, terminal box, blower, cover plate, shell, temperature protector, the shell by be parallel to the cover plate rear bottom plate,
Left bottom plate and right bottom plate perpendicular to the left and right ends of the cover plate, the upper plate perpendicular to the cover plate upper and lower ends and bottom
Plate connects and composes, it is described after the fixed two rows of described above electrothermal tubes in bottom plate upper end, parallel and interval setting between the electrothermal tube,
The blower is fixed on the lower plate, and the blower is provided with air inlet, and the setting terminal box, described in the shell
Top position of the temperature protector close to the electrothermal tube；The temperature protector includes temperature controller, fusible link and filler, is somebody's turn to do
Filler coats fusible link；The filler is polyester fiber, which is that modified copolyester is sliced melt spinning
It is prepared, also, modified copolyester slice is to be prepared by addition compound additive using situ aggregation method.
The technical solution that the embodiment of the present invention provides can include the following benefits:
Rail carriages electric heater of the invention includes temperature protector, and the temperature control element is close to position at the top of electric heating tube
It sets, whether the temperature that can be monitored around electric heating tube is higher, if the higher timely heater circuit for disconnecting electric heating tube, prevents
It is scalded caused by temperature around electric heating tube is excessively high and the generation of the perils such as fire；
In addition, fusible link is filled object in the temperature protector, which is polyester fiber, with stronger moisture absorption
Effect can be avoided influence of the ambient humidity to fusible link, increase service life and environmental suitability.
The additional aspect of the application and advantage will be set forth in part in the description, and will partially become from the following description
It obtains obviously, or recognized by the practice of the application.It should be understood that above general description and following detailed description are only
Be it is exemplary and explanatory, the application can not be limited.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings, but the embodiment in attached drawing is not constituted to any limit of the invention
System, for those of ordinary skill in the art, without creative efforts, can also obtain according to the following drawings
Other attached drawings.
Fig. 1 is a kind of structural schematic diagram of city rail compartment electric heater according to the present invention.
Fig. 2 is a kind of left view of city rail compartment electric heater according to the present invention.
Fig. 3 is the structural schematic diagram of shroud upper panel according to the present invention.
Wherein, 1- heating tube；2- terminal box；3- blower；4- electric pipe holder；Bottom plate after 5-；6- thermal insulation layer；7- liner plate；
8- temperature protector；9- cover plate；11- first row electrothermal tube；12- second row electrothermal tube；13- shell；14- heat extraction hole；The left bottom 15-
Plate；The right bottom plate of 16-；17- upper plate；18- lower plate；19- upper mounting plate；Version is installed under 20-；21- mounting hole；41- first row
Electric pipe holder；42- second row electric pipe holder；31- air inlet.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
As depicted in figs. 1 and 2, embodiments herein is related to a kind of rail carriages electric heater of high security, packet rail
Road compartment electric heater electrothermal tube 1, terminal box 2, blower 3, cover plate 9, shell 13, temperature protector 8, shell 13 is by being parallel to cover
The rear bottom plate 5 of plate 9, perpendicular to the cover plate left and right ends left bottom plate 15 and right bottom plate 16, perpendicular to about 9 cover plate
The upper plate 17 and lower plate 18 at both ends connect and compose, the rear fixed two rows of electrothermal tubes 1 described above in 5 upper end of bottom plate, described
Parallel and interval setting, the blower 3 are fixed on the lower plate 18 between electrothermal tube 1, and the blower is provided with air inlet
31, the interior setting terminal box 2 of the shell 13, top position of the temperature protector 8 close to the electrothermal tube 1.
In addition, rail carriages electric heater of the invention further includes temperature protector 8, the temperature protector is close to electric heating
Pipe top position, whether the temperature that can be monitored around electric heating tube is higher, if the higher timely heating for disconnecting electric heating tube
Circuit, the generation of the perils such as scald and fire caused by preventing the temperature around electric heating tube excessively high.
According to invention specific embodiment, it is connected in parallel between multiple electric heating tubes 2.
A specific embodiment according to the present invention, electric heating tube 2 are U-shaped heating tube.
As shown in Figure 1, being equipped with welding upper mounting plate 19 and lower installation board 20, the installation at four corner edges of heater bottom plate
Mounting hole 21 is equipped in plate, mounting hole connects bolt fixed frame.
As shown in Fig. 2, electrothermal tube 11 is fixed on the bottom plate by the first electric pipe holder 41, electrothermal tube 12 passes through the
Two electric pipe holders 42 are fixed on first electric pipe holder 41.
As shown in Fig. 2, upper plate 17, lower plate 18, left bottom plate 15, right bottom plate 16 and rear 5 inner surface of bottom plate are sticked
There is thermal insulation layer 6, the outer surface of the thermal insulation layer is provided with liner plate 7.
According to invention specific embodiment, upper plate 17, lower plate 18, left bottom plate 15, right bottom plate 16 and rear bottom
The material of plate 5 is stainless steel wire drawing plate, with a thickness of 2mm.
A specific embodiment according to the present invention, temperature protector 8 include temperature controller and fusible link, and temperature controller setting exists
Close to the top position of electric heating tube 1, temperature controller carries out environment temperature according to the transformation of 1 ambient temperature of electric heating tube
Real-time sampling and monitoring, can control the conducting and disconnection of 1 heater circuit of electric heating tube, so that the heating of electric heating tube 1 is controlled, if
Temperature around electric heating tube 1 is excessively high, then temperature controller can disconnect the power-on circuit of electric heating tube 1, and electric heating tube 1 is made to stop adding
Heat guarantees that the temperature of environment is unlikely to excessively high, reaches proper temperature；In addition, if city rail compartment electric heater
The temperature of surrounding is excessively high, and fusible link can then fuse, to disconnect the heater circuit of city rail compartment electric heater, city rail
Compartment electric heater stops heating.
A specific embodiment according to the present invention, fusible link reach 70 degrees Celsius of fusibles.
As shown in Figure 1, heater housings 1 are equipped with the terminal block 53 for 2 wiring of electric heating tube, the interface of terminal block 53
Expose, facilitates the wiring in terminal block 53 of electric heating tube 2, wiring is more convenient and safe and reliable in terminal block 53.
As shown in Figure 1, air inlet 31 is the strip slot of multiple evenly-spaced arrangements, air enters from air inlet 31
In shell, electrothermal tube generates heat after being powered, and the volume density that becomes larger becomes smaller after air heats, and hot-air passes through cover plate 9 after rising
The environment that is discharged to the outside of heat extraction hole in.
As shown in Figure 1, heater connection box 2, the bottom end of heater housings 1 is arranged in grounding nut, specifically, ground connection
Nut 9 is fixedly connected in installation side plate, and the leakage current on heater can be imported into the earth by installation grounding nut 9, can be prevented
Heater housings 9 are charged and are caused harm to the human body.
The end of a specific embodiment according to the present invention, electric heating tube 1 is equipped with insulating protective sleeve, the insulating protective sleeve
It can prevent the end of electric heating tube 1 from leaking electricity, electrical phenomena occurred for the end for preventing people from accidentally touching electric heating tube 1, to human body
It damages.
A specific embodiment according to the present invention, temperature protector 8 further includes filler, and the filler is by fusible link packet
It covers, specifically, the filler is polyester fiber, which is that modified copolyester slice melt spinning is prepared
, also, modified copolyester slice is to be prepared by addition compound additive using situ aggregation method.Polyester fiber right and wrong
The chemical fiber usually seen, common polyester fiber hygroscopicity is poor, and technical solution of the present invention is taken by being modified to polyester fiber
The technical effect for obtaining unexpected raising hydroscopicity, then can guaranteed using polyester fiber as moisture absorption filler
While moisture absorption, the quality of temperature protector is reduced, realizes the production application requirement of lighting.
It will be appreciated by those skilled in the art that above-mentioned melt spinning process is routine techniques, those skilled in the art can
To operate according to actual needs, for example, preparing the polyester fiber of different string diameters, different length according to actual needs.
In a preferred embodiment, the fiberfill fibers are the mixture of polyester fiber and carbon fiber, the two mass ratio
Example is 3:2；Carbon fiber has good thermal conductivity, hygroscopic simultaneously in guarantee by mixing carbon fiber and polyester fiber,
Enable to temperature protector sensitiveer.
The content of the compound additive is respectively 13wt.%；Under the control of above-mentioned quality, which be can be realized
Good technical effect.The compound additive is by MgSO4Nanoparticle, activation pearl powder, carbon nanotube, Cu nanoparticle and
CaCO3Particle composition；In compound additive, the MgSO4Nanoparticle, activation pearl powder, carbon nanotube, Cu nanoparticle and
CaCO3The mass fraction of particle is respectively as follows: MgSO45 parts of nanoparticle, activation 7 parts of pearl powder, 10 parts of carbon nanotube, Cu nanoparticle
Sub 2 parts, CaCO33 parts of particle.
Above-mentioned carbon nanotube is preferably multi-walled carbon nanotube, and length is 5-10 μm；Above-mentioned MgSO4Nanoparticle, work
Change pearl powder, Cu nanoparticle and CaCO3The partial size of particle is respectively 50-200nm, 200-300nm, 50-100nm, 100-
300nm；
Wherein, above-mentioned activation pearl powder preparation process are as follows:
By pearl powder successively in 310 DEG C of heating 50min, 460 DEG C of heating 10h, then Temperature fall；By the pearl after heating
Powder impregnates 10h in sodium hydroxide solution, clean wash with distilled water after immersion, then dries at 80 DEG C；Wherein, sodium hydroxide
Concentration of polymer solution is 2.4%；The pearl powder that naoh treatment is crossed pulverizes and sieves, and 5g pearl powder is then taken to be placed in conical flask
In, the cetyl trimethylammonium bromide solution of 30ml, 70mmol/L is added, the supersonic modifying 50min at 50 DEG C is filtered, and is done
Activation pearl powder is obtained after dry；
Specifically, the preparation process that above-mentioned modified copolyester is sliced are as follows:
S1, compound additive is added in ethylene glycol, is configured to the slurry of 14wt.%, then ultrasonic disperse 3h, formed
Suspension；P-phthalic acid and ethylene glycol are added to reaction kettle, wherein the molar ratio of p-phthalic acid and ethylene glycol is
1:1.4, while above-mentioned suspension and catalyst, heat stabilizer, anti-ether agent being also added together, it is sufficiently stirred, it is equal that dispersion is made
Even slurries；
S2, it is filled with 0.2MPa nitrogen protection, esterification temperature is 233-243 DEG C, esterification time 2.5h, and esterification pressure is
0.35-0.45MPa, when the volume of the water distilled from esterification condensing unit is not less than the 95% of theoretical volume, reaction
Terminate, after esterification, the polyethylene glycol of 5wt.%, normal pressure esterification 30min is added；
After S3, esterification, temperature is gradually risen, starts simultaneously at and slowly vacuumizes, 100Pa is evacuated within 30min
Hereinafter, 260-280 DEG C of polycondensation reaction temperature of control, vacuum degree 45Pa, when polycondensation power increases to 150W, reaction terminates, warp
Modified copolyester slice is made in discharging, pelletizing and drying program.
Then, which is sliced and polyester fiber is prepared by melt spinning.
Further explanation is made to the present invention combined with specific embodiments below.
Embodiment 1
In the present embodiment, the polyester fiber preparation process are as follows:
Step 1, preparation activation pearl powder: by pearl powder successively in 310 DEG C of heating 50min, 460 DEG C of heating 10h, then certainly
So cooling；Pearl powder after heating is impregnated into 10h in sodium hydroxide solution, it is clean wash with distilled water after immersion, then exist
80 DEG C of drying；Wherein, sodium hydroxide solution mass concentration is 2.4%；The pearl powder that naoh treatment is crossed pulverizes and sieves, so
After take 5g pearl powder to be placed in conical flask, be added 30ml, 70mmol/L cetyl trimethylammonium bromide solution, at 50 DEG C
Supersonic modifying 50min, filtering obtain activation pearl powder after dry；
Step 2 prepares modified copolyester slice；
Polyester fiber is prepared by melt spinning in modified copolyester slice by step 3.
It is wherein, described to prepare modified copolyester slice in step 2 specifically:
S1, compound additive is added in ethylene glycol, is configured to the slurry of 14wt.%, then ultrasonic disperse 3h, formed
Suspension；P-phthalic acid and ethylene glycol are added to reaction kettle, wherein the molar ratio of p-phthalic acid and ethylene glycol is
1:1.4, while above-mentioned suspension and catalyst, heat stabilizer, anti-ether agent being also added together, it is sufficiently stirred, it is equal that dispersion is made
Even slurries；
S2, it is filled with 0.2MPa nitrogen protection, esterification temperature is 233-243 DEG C, esterification time 2.5h, and esterification pressure is
0.35-0.45MPa, when the volume of the water distilled from esterification condensing unit is not less than the 95% of theoretical volume, reaction
Terminate, after esterification, the polyethylene glycol of 5wt.%, normal pressure esterification 30min is added；
After S3, esterification, temperature is gradually risen, starts simultaneously at and slowly vacuumizes, 100Pa is evacuated within 30min
Hereinafter, 260-280 DEG C of polycondensation reaction temperature of control, vacuum degree 45Pa, when polycondensation power increases to 150W, reaction terminates, warp
Modified copolyester slice is made in discharging, pelletizing and drying program.
After measured, the regain of polyester fiber is 15.8% in the present embodiment, has good moisture pick-up properties.
Reference examples 1
Reference examples 1 on that basis of example 1, the difference is that: compound additive is by MgSO4Nanoparticle, carbon nanometer
Pipe, Cu nanoparticle and CaCO3Particle composition；After measured, the regain of polyester fiber is 2.85% in this reference examples, hygroscopicity
It can be greatly reduced.
Reference examples 2
Reference examples 1 on that basis of example 1, the difference is that: compound additive by activation pearl powder, carbon nanotube,
Cu nanoparticle and CaCO3Particle composition；After measured, the regain of polyester fiber is 3.71% in this reference examples, moisture pick-up properties
It is greatly reduced.
Reference examples 3
Reference examples 1 on that basis of example 1, the difference is that: compound additive is by MgSO4Nanoparticle, activation are precious
Pearl powder, carbon nanotube, Cu nanoparticle and composition；After measured, the regain of polyester fiber is 3.93% in this reference examples, moisture absorption
Performance is greatly reduced.
The foregoing is merely preferred modes of the invention, are not intended to limit the invention, all in spirit and original of the invention
Within then, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of rail carriages electric heater of high security, including rail carriages electric heater electrothermal tube, terminal box, blower,
Cover plate, shell, temperature protector, which is characterized in that the shell by being parallel to the rear bottom plate of the cover plate, perpendicular to the cover
The left bottom plate of the left and right ends of plate and right bottom plate are connected and composed perpendicular to the upper plate and lower plate of the cover plate upper and lower ends,
Two rows of electrothermal tubes described above are fixed in bottom plate upper end after described, and parallel and interval is arranged between the electrothermal tube, and the blower is solid
It is scheduled on the lower plate, the blower is provided with air inlet, the setting terminal box, the temperature protector in the shell
Close to the top position of the electrothermal tube；The temperature protector includes temperature controller, fusible link and filler, which will melt
Fracture of wire cladding；The filler is polyester fiber, which is that modified copolyester slice melt spinning is prepared,
Also, modified copolyester slice is to be prepared by addition compound additive using situ aggregation method.
2. a kind of rail carriages electric heater of high security according to claim 1, which is characterized in that the electrothermal tube
Wherein row's electric heating tube is fixed on the bottom plate by the first electric pipe holder, and electrothermal tube described in another row passes through the second electricity
Heat pipe bracket is fixed on first electric pipe holder.
3. a kind of rail carriages electric heater of high security according to claim 2, which is characterized in that described first,
The setting of second electric pipe holder side-by-side parallel.
4. a kind of rail carriages electric heater of high security according to claim 1, which is characterized in that the electric heating
Pipe, the blower and the temperature protector are electrically connected with the terminal box；The upper plate, lower plate, left bottom plate,
Right bottom plate and rear baseplate inner surface are sticked and have thermal insulation layer, and the outer surface of the thermal insulation layer is provided with liner plate.
5. a kind of rail carriages electric heater of high security according to claim 1, which is characterized in that bottom plate after described
On offer mounting hole；The cover plate is equipped with multiple heat extraction holes, and multiple heat extraction holes are between the horizontal direction parallel of the shell
It is spaced.
6. a kind of rail carriages electric heater of high security according to claim 1, which is characterized in that the filling is fine
Dimension is the mixture of polyester fiber and carbon fiber, and the two mass ratio is 3:2.
7. the rail carriages electric heater of any a kind of high security according to claim 1 or in 6, which is characterized in that
The compound additive is by MgSO4Nanoparticle, activation pearl powder, carbon nanotube, Cu nanoparticle and CaCO3Particle composition；It is poly-
In ester fiber, the content of the compound additive is respectively 13wt.%.
8. a kind of rail carriages electric heater of high security according to claim 7, which is characterized in that the polyester fiber
Preparation process are as follows:
Step 1, preparation activation pearl powder: it by pearl powder successively in 310 DEG C of heating 50min, 460 DEG C of heating 10h, then drops naturally
Temperature；Pearl powder after heating is impregnated into 10h in sodium hydroxide solution, it is clean wash with distilled water after immersion, then at 80 DEG C
Drying；Wherein, sodium hydroxide solution mass concentration is 2.4%；The pearl powder that naoh treatment is crossed pulverizes and sieves, and then takes
5g pearl powder is placed in conical flask, and the cetyl trimethylammonium bromide solution of 30ml, 70mmol/L is added, ultrasonic at 50 DEG C
Modified 50min, filtering obtain activation pearl powder after dry；
Step 2 prepares modified copolyester slice；
Polyester fiber is prepared by melt spinning in modified copolyester slice by step 3.
9. a kind of rail carriages electric heater of high security according to claim 8, which is characterized in that in step 2, institute
It states and prepares modified copolyester slice specifically:
S1, compound additive is added in ethylene glycol, is configured to the slurry of 14wt.%, then ultrasonic disperse 3h, formed and suspended
Liquid；P-phthalic acid and ethylene glycol are added to reaction kettle, wherein the molar ratio of p-phthalic acid and ethylene glycol is 1:
1.4, while above-mentioned suspension and catalyst, heat stabilizer, anti-ether agent being also added together, it is sufficiently stirred, is made and is uniformly dispersed
Slurries；
S2, it is filled with 0.2MPa nitrogen protection, esterification temperature is 233-243 DEG C, esterification time 2.5h, and esterification pressure is 0.35-
0.45MPa, when the volume of the water distilled from esterification condensing unit is not less than the 95% of theoretical volume, reaction terminates,
After esterification, the polyethylene glycol of 5wt.%, normal pressure esterification 30min is added；
After S3, esterification, gradually rise temperature, start simultaneously at and slowly vacuumize, be evacuated to 100Pa within 30min hereinafter,
260-280 DEG C of polycondensation reaction temperature is controlled, vacuum degree 45Pa, when polycondensation power increases to 150W, reaction terminates, discharged,
Modified copolyester slice is made in pelletizing and drying program.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811026187.7A CN109131398A (en) | 2018-09-04 | 2018-09-04 | The rail carriages electric heater of high security |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811026187.7A CN109131398A (en) | 2018-09-04 | 2018-09-04 | The rail carriages electric heater of high security |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109131398A true CN109131398A (en) | 2019-01-04 |
Family
ID=64826708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811026187.7A Pending CN109131398A (en) | 2018-09-04 | 2018-09-04 | The rail carriages electric heater of high security |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532080A (en) * | 2003-03-25 | 2004-09-29 | 瓦莱奥空调公司 | Electric heater including a heater |
| CN201405866Y (en) * | 2009-06-18 | 2010-02-17 | 镇江东方电热科技股份有限公司 | Electric heater of rail passenger car |
| CN105161363A (en) * | 2015-07-21 | 2015-12-16 | 明光旭升科技有限公司 | Temperature protector and a preparation method thereof |
| CN107312166A (en) * | 2017-06-28 | 2017-11-03 | 郑善 | A kind of modified PET polyester and its preparation method and application |
| CN206871080U (en) * | 2017-08-18 | 2018-01-12 | 江苏九州电器有限公司 | City rail compartment electric heater |
| CN109109886A (en) * | 2018-08-22 | 2019-01-01 | 佛山豆萁科技有限公司 | A kind of city rail compartment electric heater |
-
2018
- 2018-09-04 CN CN201811026187.7A patent/CN109131398A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1532080A (en) * | 2003-03-25 | 2004-09-29 | 瓦莱奥空调公司 | Electric heater including a heater |
| CN201405866Y (en) * | 2009-06-18 | 2010-02-17 | 镇江东方电热科技股份有限公司 | Electric heater of rail passenger car |
| CN105161363A (en) * | 2015-07-21 | 2015-12-16 | 明光旭升科技有限公司 | Temperature protector and a preparation method thereof |
| CN107312166A (en) * | 2017-06-28 | 2017-11-03 | 郑善 | A kind of modified PET polyester and its preparation method and application |
| CN206871080U (en) * | 2017-08-18 | 2018-01-12 | 江苏九州电器有限公司 | City rail compartment electric heater |
| CN109109886A (en) * | 2018-08-22 | 2019-01-01 | 佛山豆萁科技有限公司 | A kind of city rail compartment electric heater |
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Application publication date: 20190104 |