CN105890206A - Pneumatic gas heating device and gas heating method - Google Patents
Pneumatic gas heating device and gas heating method Download PDFInfo
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- CN105890206A CN105890206A CN201410597338.XA CN201410597338A CN105890206A CN 105890206 A CN105890206 A CN 105890206A CN 201410597338 A CN201410597338 A CN 201410597338A CN 105890206 A CN105890206 A CN 105890206A
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- jet pipe
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- spray pipe
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Abstract
The invention discloses a pneumatic gas heating device and a gas heating method. The heating device comprises a pipeline formed by connecting two straight pipes in a mutually sealed mode, and the inner wall of the pipeline is provided with a heat insulating layer; and the joint of the two straight pipes is provided with a supporting component connected with a spray pipe which is arranged in the center position of the cross section inside the pipeline, and an annular channel gradually contracting in the forward direction and gradually extending in the reverse direction is formed between the spray pipe and a pipeline insulating layer. High-speed compressed gas is fed from one end of the pipeline at the subsonic speed and divided into two streams when passing the spray pipe, the middle stream of gas enters a variable cross-section airflow channel of the spray pipe, and the peripheral stream of gas enters the annular pipeline which is located between the spray pipe and the heat insulating layer and gradually contracts in the forward direction; and accordingly, the speed difference of the two streams of airflow occurs on the tail end confluence surface of the spray pipe, shearing fraction and disturbance are generated, then, the gas is heated, and the heated gas flows out of the other end of the pipeline. The pneumatic gas heating device and the gas heating method have the advantages of being simple in structure, low in manufacturing cost, uniform in heating, quick in temperature rise, savable in energy, efficient, clean, sanitary and the like.
Description
Technical field
The present invention relates to a kind of pneumatic type gas-heating apparatus and gas heating method.
Background technology
High-temperature gas is widely used in the industry spot such as metallurgical steel-making industry.Conventional gas heats (such as combustion gas, electricity
Heat etc.) it is all the gas utilizing conduction of heat, convection current, heat radiation that first heat passes to heater near surface,
Gas bulk temperature is progressively made to raise by heat convection again.Gas entirety to be made reaches required temperature, needs
Certain heat transfer time.When heating with temperature difference mode of heating, for improving firing rate, just need elevated external temperatures,
Strengthen temperature gradient, thus also increase heat loss.
And internal channel high-speed gas Aerodynamic Heating method is straight to a part of kinetic energy and the pressure energy of high-speed compressed air
Switch through and turn to energy (heat energy) in it, therefore can reach at short notice uniformly to heat.And, compressed gas is described as
" the second largest energy of the mankind ", it is seen that these heating means have the basis of extensively utilization.But there is not this respect at present
Relevant report.
Summary of the invention
It is an object of the invention to provide a kind of simple in construction, low cost of manufacture, homogeneous heating and heat up rapidly
Pneumatic type gas-heating apparatus and utilize the gas heating method of this heater.
For reaching object above, the present invention adopts the following technical scheme that and is achieved:
A kind of pneumatic type gas-heating apparatus, it is characterised in that include the pipe being sealed against each other connection by two sections of straight tubes
Road, inner-walls of duct is provided with thermal insulation layer, and described two sections of straight tube junctions are provided with supporting member connection one and are placed in
The jet pipe of kernel of section position in pipeline, forms a positive direction tapered, anti-between this jet pipe and pipe insulation
The circular passage of direction flaring；Variable cross-section gas channel it is provided with in this jet pipe.
In such scheme, described variable cross-section gas channel is by multiple annular flaring passages and multiple annular tapered channels
Composition, described annular flaring passage is radially separated by setting with annular tapered channels along jet pipe.Annular flaring passage can
Being 2, annular tapered channels can be 3.
A kind of gas heating method using apparatus above, comprises the steps:
(1) first thermal insulation layer is set at two sections of straight tube inwalls, then couples a jet pipe with a supporting member,
Supporting member is placed between two sections of straight tubes end face in opposite directions, then the end face seal in opposite directions of two sections of straight tubes is connected into
Pipeline, and make jet pipe be fixed on kernel of section position in pipeline by supporting member, jet pipe and pipe insulation it
Between form that positive direction is tapered, the circular passage of opposite direction flaring；Variable cross-section gas channel it is provided with in jet pipe；
(2) high speed compression gas is sent into subsonic speed by pipeline one end, divided when high velocity air is by jet pipe
Becoming two strands, middle one enters the variable cross-section gas channel of jet pipe, around one then enter jet pipe and thermal insulation layer it
Between the tapered circulating line of positive direction in, make two strands of air-flows converge generation speed difference on face at nozzle tip, send out
Giving birth to shearing friction and disturbance and be heated, heated gas flows out from the other end of pipeline.
In said method, the variable cross-section gas channel of described jet pipe can use multiple annular flaring passages and multiple ring
Shape tapered channels forms, and described annular flaring passage is radially separated by setting with annular tapered channels along jet pipe, works as height
By centre during jet pipe, one is divided into multiply to speed air-flow, converges generation multiply gas velocity on face at nozzle tip
It is poor to spend, and makes the multiply air-flow converged occur violent shearing friction and disturbance to be heated.
Pneumatic type gas-heating apparatus of the present invention and heating means, have the advantage that firing rate is fast；Heating
Uniformly；Efficient energy-saving；Sanitation and hygiene.Additionally, heater simple in construction, durable, be hardly damaged, need
The industry spot wanting high-temperature gas can be used widely.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is that the A-A of Fig. 1 is to sectional view.
Fig. 3 is the another kind of cross-sectional view of jet pipe in Fig. 1.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail:
As shown in Figure 1 and Figure 2, a kind of pneumatic type gas-heating apparatus, seal against each other even including by two sections of straight tubes
The pipeline 7 connect, inner-walls of duct is provided with thermal insulation layer 8, and two sections of straight tube junctions are provided with supporting member 5 and couple
One is placed in the jet pipe 6 of kernel of section position in pipeline 7, forms one between this jet pipe and pipe insulation 8
Positive direction is tapered, the circular passage of opposite direction flaring 10；It is provided with variable cross-section gas channel 9 in this jet pipe 6.
The place of being tightly connected of two sections of straight tubes uses adpting flange 1,4, connecting bolt 2 and seal washer 3.Supporting member
The structure of 5 is one and has the flange of muscle between radial direction trisection, and pipeline 7 can use steel pipe.
High speed compression gas is entered pipeline 7 with subsonic speed v by left end, and air-flow is divided into 2 strands, and middle one enters
Entering the variable cross-section gas channel 9 of jet pipe 6, this variable cross-section gas channel 9 is a flaring passage；And edge
One then enters in the tapered annular passage 10 between jet pipe 6 and thermal insulation layer 8, and the former is decelerated, and the latter
Accelerated, such air-flow is just converging generation shearing friction and disturbance on the B of face, thus by the part pressure of gas
Energy and kinetic energy are converted into the interior energy (heat energy) of gas, it is achieved add the purpose of hot gas；Gas is as entered from right-hand member
Enter, there is above identical effect.Using the device of the present embodiment, the temperature of gas heating is Celsius up to 14
Degree.
As it is shown on figure 3, in order to improve the temperature adding hot gas, the jet pipe 6 in Fig. 1 is entered by the present invention
The variable cross-section gas channel 9 of the improvement of one step, i.e. jet pipe 6 may be designed as by multiple annular flaring passage 11 Hes
Multiple annular tapered channels 12 are constituted；Annular flaring passage is separated by along the radial direction of jet pipe 6 with annular tapered channels
Arrange；Annular flaring passage can be 2, and annular tapered channels can be 3.So, pass through when high velocity air
Centre during jet pipe 6 one may be logically divided into multiply, nozzle tip converge on the B of face produce multiply air velocity poor,
The multiply air-flow converged is made to occur violent shearing friction and disturbance to improve the temperature of gas heating.Use Fig. 3
The jet pipe of shown structure can improve 10 degrees Celsius than the jet pipe gas heating-up temperature of Fig. 1 structure.
Claims (5)
1. a pneumatic type gas-heating apparatus, it is characterised in that include being sealed against each other connection by two sections of straight tubes
Pipeline, inner-walls of duct is provided with thermal insulation layer, described two sections of straight tube junctions be provided with supporting member couple one
It is placed in the jet pipe of kernel of section position in pipeline, between this jet pipe and pipe insulation, forms a positive direction gradually
Contracting, the circular passage of opposite direction flaring；Variable cross-section gas channel it is provided with in this jet pipe.
2. pneumatic type gas-heating apparatus as claimed in claim 1, it is characterised in that described variable cross-section air-flow
Passage is made up of multiple annular flaring passages and multiple annular tapered channels, and described annular flaring passage is with annular gradually
Contracting passage is radially separated by setting along jet pipe.
3. pneumatic type gas-heating apparatus as claimed in claim 2, it is characterised in that described annular flaring leads to
Road is 2, and annular tapered channels can be 3.
4. the gas heating method using claim 1 pneumatic type gas-heating apparatus, it is characterised in that
Comprise the steps:
(1) first thermal insulation layer is set at two sections of straight tube inwalls, then couples a jet pipe with a supporting member,
Supporting member is placed between two sections of straight tubes end face in opposite directions, then the end face seal in opposite directions of two sections of straight tubes is connected into
Pipeline, and make jet pipe be fixed on kernel of section position in pipeline by supporting member, jet pipe and pipe insulation it
Between form that positive direction is tapered, the circular passage of opposite direction flaring；Variable cross-section gas channel it is provided with in jet pipe；
(2) high speed compression gas is sent into subsonic speed by pipeline one end, divided when high velocity air is by jet pipe
Becoming two strands, middle one enters the variable cross-section gas channel of jet pipe, around one then enter jet pipe and thermal insulation layer it
Between the tapered circulating line of positive direction in, make two strands of air-flows converge generation speed difference on face at nozzle tip, send out
Giving birth to shearing friction and disturbance and be heated, heated gas flows out from the other end of pipeline.
A kind of gas heating side using claim 1 pneumatic type gas-heating apparatus the most as claimed in claim 4
Method, it is characterised in that the variable cross-section gas channel of described jet pipe uses multiple annular flaring passages and multiple ring
Shape tapered channels forms, and described annular flaring passage is radially separated by setting with annular tapered channels along jet pipe, works as height
By centre during jet pipe, one is divided into multiply to speed air-flow, converges generation multiply gas velocity on face at nozzle tip
It is poor to spend, and makes the multiply air-flow converged occur violent shearing friction and disturbance to be heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410597338.XA CN105890206A (en) | 2014-10-23 | 2014-10-23 | Pneumatic gas heating device and gas heating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410597338.XA CN105890206A (en) | 2014-10-23 | 2014-10-23 | Pneumatic gas heating device and gas heating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105890206A true CN105890206A (en) | 2016-08-24 |
Family
ID=57000592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410597338.XA Pending CN105890206A (en) | 2014-10-23 | 2014-10-23 | Pneumatic gas heating device and gas heating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105890206A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577282A (en) * | 2019-10-15 | 2019-12-17 | 怡灏环境技术有限公司 | Upflow anaerobic treatment system |
| CN110642499A (en) * | 2019-10-15 | 2020-01-03 | 怡灏环境技术有限公司 | Sludge drying system |
| CN113133477A (en) * | 2021-05-07 | 2021-07-20 | 黄彬彬 | Fruit core crisp production device and preparation process thereof |
| CN114941860A (en) * | 2022-05-24 | 2022-08-26 | 日照汇德物联科技有限公司 | High-rotating-speed air friction heating unit |
-
2014
- 2014-10-23 CN CN201410597338.XA patent/CN105890206A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110577282A (en) * | 2019-10-15 | 2019-12-17 | 怡灏环境技术有限公司 | Upflow anaerobic treatment system |
| CN110642499A (en) * | 2019-10-15 | 2020-01-03 | 怡灏环境技术有限公司 | Sludge drying system |
| CN113133477A (en) * | 2021-05-07 | 2021-07-20 | 黄彬彬 | Fruit core crisp production device and preparation process thereof |
| CN114941860A (en) * | 2022-05-24 | 2022-08-26 | 日照汇德物联科技有限公司 | High-rotating-speed air friction heating unit |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |
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| WD01 | Invention patent application deemed withdrawn after publication |