CN208887110U - A kind of high-speed flow nonstorage calorifier - Google Patents
A kind of high-speed flow nonstorage calorifier Download PDFInfo
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- CN208887110U CN208887110U CN201821288536.8U CN201821288536U CN208887110U CN 208887110 U CN208887110 U CN 208887110U CN 201821288536 U CN201821288536 U CN 201821288536U CN 208887110 U CN208887110 U CN 208887110U
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- heating
- porous barrier
- ceramic tube
- speed flow
- speed
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- 238000010438 heat treatment Methods 0.000 claims abstract description 65
- 239000000919 ceramic Substances 0.000 claims abstract description 34
- 230000004888 barrier function Effects 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 239000010935 stainless steel Substances 0.000 claims abstract description 11
- 239000002937 thermal insulation foam Substances 0.000 claims abstract description 8
- 238000005485 electric heating Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 229910052573 porcelain Inorganic materials 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 9
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 229920000742 Cotton Polymers 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000395 magnesium oxide Substances 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000003889 chemical engineering Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of high-speed flow nonstorage calorifier, including water diversion part, heating part, insulating portions.Water diversion part includes air inlet, three layers of conical flow guiding pipe, porous barrier, gas outlet, heating part includes heating wire, ceramic tube, screw rod, feed screw nut, shaft shoulder ceramics, thin-wall stainless steel, and insulating portion includes the microporous cylinder that can lower pneumatic noise, the heat insulation foam with sound-absorption and heat-insulation function, shield shell, positioning pin.The method that whole device uses heating wire and reduces the high-speed flow Direct Contact Heating after speed, heating speed is fast, temperature is high, noise is small, it is compact-sized, be readily disassembled, and can realize modularization, multi-purpose content may be implemented after modularization, be also beneficial to breakdown maintenance in the future.
Description
Technical field
The utility model belongs to pipeline air heater technical field more particularly to a kind of high-speed flow quickly heats dress
It sets.
Background technique
Pipeline air heater is a kind of to convert electrical energy into thermal energy and carry out direct-fired electric heating equipment to air.
Pipeline air heater is widely used in each scientific research field such as aerospace, auto industry, chemical engineering industry and institution of higher learning,
, heating temperature high, rate temperature change fast, good mechanical property, temperature-controllable good the features such as high with heating efficiency.Air adds
The principle of hot device is to allow air under the guidance of the deflector of inner cavity, extends air in the residence time of inner cavity, it is main by pair
Heat energy transfer on electric heating tube into air, is kept air heats uniform by stream heat exchange mode, raising heat exchanger effectiveness, but due to
Fluid can generate vortex after encountering barrier, to change flow velocity direction, increase flow resistance, generate large energy and dissipate
And the pressure loss, this phenomenon are not resolved also.
Heating element used in general air heater is stainless steel electrically heated rod, is that heating wire is placed in seamless steel
In pipe, then with magnesium oxide powder gap in steel pipe is filled up, most of heater uses above-mentioned electrically heated rod currently on the market.Due to
There are thermal resistances for magnesia between heating wire and stainless-steel pipe, and entire heating device heat-transfer capability is caused to decline；Equal-wattage
Lower stainless steel heating rod volume ratio heater strip is big, and it is small to will lead to space utilization rate.
High-speed flow can all generate high frequency gas by some expansion cavity structures, perforation structure, section sudden contraction structure
Regenerated noise is flowed, the occasion high for some pairs of acoustic performance requirements also needs to be optimized.
The performance test of silencer, simulated engine exhaust under the conditions of automobile and scientific research field, high-temperature high-speed airflow
Performance test etc. needs in the experiment of high-temperature high-speed airflow, and due to being unable to get high-temperature high-speed airflow, experiment is difficult further to open up
It opens.
Utility model content
Technical problem to be solved by the utility model is to provide a kind of high-speed flow nonstorage calorifier, heating speeds
Fastly, low noise, it is compact-sized, be readily disassembled, and can realize modularization.
The technical scheme adopted by the utility model to solve the technical problem is as follows: providing a kind of high-speed flow quickly heats dress
It sets, including water diversion part, heating part, insulating portion, water diversion part includes conical flow guiding pipe, porous barrier, the heating part
Divide including heating wire, ceramic tube, thin-wall stainless steel, shaft shoulder ceramics, insulating portion includes that microporous cylinder (can lower air-flow to make an uproar
Sound), heat insulation foam (having the function of sound-absorption and heat-insulation), shield shell, positioning pin, heating part is fixed with screw rod a, screw rod b
The porous barrier at both ends, by the electric heating silk braid for being used to generate heat outside ceramic tube, thin-wall stainless steel is mounted in ceramic tube, is prevented
Ceramic tube fracture.Shaft shoulder ceramics are sticked to ceramic tube both ends with refractory seals glue, and ceramic tube passes through the hole of both ends porous barrier
It is axial and radial to fix it, so entire heating part is just secured and reliable, and insulating portion is round with porous barrier support micropore
Cylinder, and be laid with heat insulation foam in microporous cylinder periphery and realize the sealing of housing cavity for preventing hot gas leakage and reduce heat radiation
Maintain system temperature constant.Shield shell is mounted on outside heat insulation foam, and entire insulating portion axial direction position is fixed with positioning pin
It sets.Microporous cylinder plays support insulating portion, and the inner wall as entire heating part, and microcellular structure can play sound deadening,
The reproduced air-flow noise of component frequency can be eliminated, the smaller erasure effect of micro-pore diameter is better, since the hole technique for crossing minor diameter is difficult
Degree is big, therefore is slightly larger than cylinder thickness for bore dia.
According to the above technical scheme, water diversion part is that two layers of water conservancy diversion conical pipeline is further added by inside outermost layer conical pipe, is made
It is uniform by air velocity everywhere in porous barrier.Guarantee that air is evenly heated in heating process.It will by multilayer water conservancy diversion canalis spinalis
Airflow channel expand, can be greatly lowered air velocity make air heating time it is longer, heating it is more abundant.
According to the above technical scheme, in porous barrier circular hole use equilateral triangle arrangement, 6 holes of first layer, the second layer 12
Hole, 18 holes of third layer ensure that heating ceramic tube spacing is identical and space utilization rate can be made to reach maximum, between the layers
Annular region in open up annular groove.Percent opening is increased, the pressure loss is reduced, reproduced air-flow noise is reduced.
According to the above technical scheme, the annular groove outer diameter on porous barrier and internal diameter distinguish the maximum of heating wire adjacent thereto
Outer circle is tangent.It is not contacted directly with heating wire during causing air flow through, but gas enters the reduction of heating interval air velocity
Later again with heating wire heat convection.
According to the above technical scheme, flange connection is used between water diversion part and heating part, is passed through between flange close
It seal and is bolted.Make entire heating-device modules, when removing heating part, which can be used as muffler use；
When removing heating part and insulating portion, it can be used as pressurizer tank use, multi-purpose content may be implemented after modularization, also favorably
In breakdown maintenance in the future.
The beneficial effect that the utility model generates is: the utility model uses peculiar multilayer water conservancy diversion conical pipe, reduces air-flow
Speed makes that air heating time is longer, heating is more abundant, and guarantees that speed is more evenly when air enters heating chamber；Distinctive use
Heating wire and the method for reducing the high-speed flow Direct Contact Heating after speed, heating speed is fast, temperature is high；Distinctive arrangement side
Formula keeps gas flow rate direction consistent with heating tube direction, and flow resistance is small, and the pressure loss is small；Using in the conduct of peculiar microporous cylinder
Wall and reproduced air-flow noise can be effectively reduced using sound-absorption and heat-insulation cotton, its working environment is made to be greatly improved；It is distinctive
Whole device is divided into three parts, and modularization, different desired effects can be reached in any combination, it can be real after modularization
Existing multi-purpose content, is also beneficial to breakdown maintenance in the future.
Detailed description of the invention
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing:
Fig. 1 is the overall appearance schematic diagram of the utility model embodiment high-speed flow nonstorage calorifier；
Fig. 2 is the A-A section simplified structure diagram of the utility model；
Fig. 3 is the section B-B simplified structure diagram of the utility model；
Fig. 4 is the single heating tube schematic cross-section of the utility model；
Wherein: 1, air inlet；2, water conservancy diversion canalis spinalis；3, connecting flange；4, porous barrier；5, the ceramic shaft shoulder；6, microporous cylinder；
7, sound-absorption and heat-insulation cotton 8, shield shell；9, screw rod a；10, screw rod b；11, screw rod ceramics；12, ceramic tube；13, heating wire；14,
Feed screw nut；15, gas outlet；16, thin-wall stainless steel；17, positioning pin.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.
In the utility model embodiment, a kind of high-speed flow nonstorage calorifier is provided, as shown in Figure 1, Figure 2, Figure 4 shows, this
The water diversion part of the high-speed flow nonstorage calorifier of utility model includes air inlet 1, water conservancy diversion canalis spinalis 2, porous barrier 4, outlet
Mouth 15；Heating part includes for fixing the screw rod a9 of porous barrier 4, screw rod ceramics 11, ceramic tube 12, the ceramic shaft shoulder 5, electric heating
Silk 13, feed screw nut 14, thin-wall stainless steel 16；Insulating portion include microporous cylinder 6, sound-absorption and heat-insulation cotton 7, shield shell 8,
Positioning pin 17.
In the present embodiment, the area of three layers of 2 big end of water conservancy diversion canalis spinalis of water diversion part can be big according to 4 three level of porous barrier product
Small determination, the diameter of small end can by the diameter at the size both ends being calculated according to the ratio-dependent of the taken diameter of big end
It is identical to guarantee to flow into flow velocity at each hole of porous barrier 4, when air-flow enters from air inlet 1, by water diversion part by air-flow
It is divided into the identical three parts of flow velocity, one timing flow velocity of flow is negatively correlated with circulation area, so that air velocity is reduced.
As shown in figure 3, heating part fixes both ends with a screw rod a9 (16mm), three screw rod b10 (12mm)
Porous barrier 4 makes its axial restraint, and by 13 sets of heating wire that are used to generate heat outside the ceramic tube of insulation, thin-wall stainless steel is filled in
It prevents ceramic tube to be broken in ceramic tube, the ceramic shaft shoulder 5 is sticked to 12 both ends of ceramic tube with refractory seals glue, and will assembly
Good heating pipe assembly fixes the axial direction and radial direction of heating part, such entire heating part in the hole of both ends porous barrier 4
Point just it is secured and reliable, when air-flow from water diversion part by porous barrier 4 enter heating part during, although pressure is damaged
It losing, but air-flow enters and do not encounter other barriers after heating part, reproduced air-flow noise is small, and heating part sectional area is big,
Speed lowers significantly, and air-flow and heating wire 13 can be carried out sufficient heat exchange.
Insulating portion is used to prevent hot gas leakage by being laid with sound-absorption and heat-insulation cotton 7 in 6 periphery of microporous cylinder, realizes housing cavity
Sealing and reduce heat radiation maintain system temperature it is constant, shield shell is mounted on outside heat insulation foam, is further realized close
Envelope and protective effect, while relative to other structures to generate reproduced air-flow noise minimum for porous tubular structure, is high acoustic resistance, in a low voice
The sound absorbing element of quality, sound-absorption and heat-insulation cotton 7 also have good sound absorbing performance.
After air-flow is by water diversion part, heating part, insulating portion, air velocity is reduced, temperature increases, and passes through the other end
Water diversion part can promote air velocity, keep air inlet 1 identical as 15 speed of gas outlet.
Can use the flange connection being readily disassembled between water diversion part and heating part, between flange by sealing ring and
Being bolted makes entire heating-device modules, and insulating portion can be connect with heating part with positioning pin 17, when removal heating part
Timesharing, the device can be used as muffler use；When removing heating part and insulating portion, pressurizer tank use, module can be used as
Multi-purpose content may be implemented after changing, be also beneficial to breakdown maintenance in the future.
The installation process of device described in the utility model is as follows: first carrying out porous barrier 4 and screw rod a9, screw rod b10
Assembly determines the relative position of two pieces of porous barriers 4, then by 13 sets of heating wire that are used to generate heat outside ceramic tube 12, thin-walled is not
16 sets of steel pipe of rust prevents ceramic tube to be broken in ceramic tube, and the ceramic shaft shoulder 5 is sticked to ceramic tube both ends with refractory seals glue,
Assembled ceramic tube is fixed its axial and radial direction, entire heating part in the hole of both ends porous barrier 4 and is connected after installing
It connects and draws heating wire 13 and connect by insulating portion with extraneous control system, entire heating part is then filled in into microporous cylinder
6 and it is laid with sound-absorption and heat-insulation cotton 7 in cylindrical outer, then entirely will be partially loaded shield shell 8, is inserted into positioning pin 17, and weld
Connecting flange 3, after main part is installed, then in entrance, exit welding upper flange and water conservancy diversion canalis spinalis 2, three layers of canalis spinalis it
Between separated with support rib, such whole device structure division installs.
It should be understood that for those of ordinary skills, it can be modified or changed according to the above description,
And all these modifications and variations all should belong to the protection scope of the appended claims for the utility model.
Claims (5)
1. a kind of high-speed flow nonstorage calorifier, which is characterized in that including water diversion part, heating part, insulating portion, water conservancy diversion
Part includes conical flow guiding pipe, porous barrier, and the heating part includes heating wire, ceramic tube, thin-wall stainless steel, shaft shoulder pottery
Porcelain, insulating portion include microporous cylinder, heat insulation foam, shield shell, positioning pin, and heating part is consolidated with screw rod a, screw rod b
The porous barrier for determining both ends, by the electric heating silk braid for being used to generate heat outside ceramic tube, thin-wall stainless steel is mounted in ceramic tube, axis
Shoulder ceramics are sticked to ceramic tube both ends with refractory seals glue, its axial direction and diameter are fixed in the hole that ceramic tube passes through both ends porous barrier
To insulating portion is to support microporous cylinder with porous barrier, and be laid with heat insulation foam, the installation of shield shell in microporous cylinder periphery
Outside heat insulation foam, entire insulating portion axial position is fixed with positioning pin.
2. high-speed flow nonstorage calorifier according to claim 1, which is characterized in that water diversion part is bored in outermost layer
It is further added by two layers of water conservancy diversion conical pipeline inside shape pipe, makes uniform by air velocity everywhere in porous barrier.
3. high-speed flow nonstorage calorifier according to claim 1 or 2, which is characterized in that circular hole is adopted in porous barrier
With equilateral triangle arrangement, 6 holes of first layer, 12 holes of the second layer, 18 holes of third layer, in annular region between the layers
Open up annular groove.
4. high-speed flow nonstorage calorifier according to claim 3, which is characterized in that outside the annular groove on porous barrier
Diameter and the maximum outer circle that internal diameter distinguishes heating wire adjacent thereto are tangent.
5. high-speed flow nonstorage calorifier according to claim 1 or 2, which is characterized in that water diversion part and heating part
/ flange connection is used, it by sealing ring and is bolted between flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821288536.8U CN208887110U (en) | 2018-08-10 | 2018-08-10 | A kind of high-speed flow nonstorage calorifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821288536.8U CN208887110U (en) | 2018-08-10 | 2018-08-10 | A kind of high-speed flow nonstorage calorifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208887110U true CN208887110U (en) | 2019-05-21 |
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ID=66508506
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821288536.8U Expired - Fee Related CN208887110U (en) | 2018-08-10 | 2018-08-10 | A kind of high-speed flow nonstorage calorifier |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091307A (en) * | 2021-05-13 | 2021-07-09 | 烟台大学 | Electromagnetic heating device with low noise, purification, disinfection and uniform temperature rise |
| CN114165920A (en) * | 2022-01-17 | 2022-03-11 | 深圳市京田精密科技有限公司 | Utilize air current auxiliary heating device of inside inclined plane of box |
-
2018
- 2018-08-10 CN CN201821288536.8U patent/CN208887110U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113091307A (en) * | 2021-05-13 | 2021-07-09 | 烟台大学 | Electromagnetic heating device with low noise, purification, disinfection and uniform temperature rise |
| CN113091307B (en) * | 2021-05-13 | 2022-11-11 | 烟台大学 | Electromagnetic heating device with low noise, purification, disinfection and uniform temperature rise |
| CN114165920A (en) * | 2022-01-17 | 2022-03-11 | 深圳市京田精密科技有限公司 | Utilize air current auxiliary heating device of inside inclined plane of box |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 |