CN206055947U - Air heater - Google Patents
Air heater Download PDFInfo
- Publication number
- CN206055947U CN206055947U CN201620902131.3U CN201620902131U CN206055947U CN 206055947 U CN206055947 U CN 206055947U CN 201620902131 U CN201620902131 U CN 201620902131U CN 206055947 U CN206055947 U CN 206055947U
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- Prior art keywords
- housing
- dividing plate
- air heater
- gas
- heating tube
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- Direct Air Heating By Heater Or Combustion Gas (AREA)
Abstract
A kind of tubular air heater for heating flowing gas, which includes：Housing, the housing includes top board, base plate and cylinder portion, it is arranged at air inlet and the gas outlet on the top of housing, heating tube, wherein, dividing plate is vertically arranged with the inside of housing, the air inlet and gas outlet are respectively positioned at the both sides of the dividing plate, the dividing plate forms the gas channel of connection dividing plate both sides in the bottom of the housing, is located near gas outlet and arranges temperature sensor, and the heating tube is connected with control chamber in housing.
Description
Technical field
This utility model is related to air heater.Specifically, this utility model is related to the air for heating flowing gas
Heater.
Background technology
In recent years as breathing compressed air is in the application in the field such as nuclear industry and bio-safety, personnel's breathing is being met
While, the breathable gas of preference temperature can provide comfort to user of service, slow down the fatigue of personnel.Compressed air adds
Thermal can raise the temperature of compressed air, meet the comfortableness demand of user of service.
In the world, the device that the rare breathing of comparison heat with compressed air, especially for being more than 60 cubes ms/h
The big flow and changes in flow rate demand that frequently gas temperature is heated.Under big flow or the big situation of changes in flow rate, heating
Regulation is relatively difficult to control.
In the compressed air heater of current prior art, air Jing air compressors are compressed into 10BAR's
Compressed air, is then provided with the cylindrical pressure vessel of electrothermal tube through one, realizes the purpose of heating.Which adopts high-power
Electric heating tube, heat exchange area are limited.If compressed air flow velocity is very fast, heater volume is accomplished by larger or adopts high-power
Heating tube, but for the change of flow velocity, the response speed of heater is extremely difficult to require that temperature fluctuation is sometimes more than 6
Degree Celsius.
Therefore, in the compressed air heater of current prior art, it is primarily present following shortcoming：
1. gas flow velocity faster in the case of, the heat time heating time of air-flow is short, and heats are bad；
2. gas flow in the case of fast-changing, easily cause overheated or heat up slow；
3. volume is excessive；
4. draining is unable to.
Utility model content
The purpose of this utility model is to provide a kind of being used for for one or more shortcomings that can overcome above-mentioned prior art
The air heater of heating flowing gas.
The air heater can dynamically adjust the temperature of compressed air when gas flows, and realize to compressed air
Heating, particularly meets the regulation to gas heating in the flow of gas in the case of fast-changing.The air is heated
Device does not produce secondary pollution to the quality of compressed air in the course of the work.
For achieving the above object, the utility model proposes a kind of tubular air heater for heating flowing gas.
The air heater includes：Housing, the housing include top board, base plate and cylinder portion；It is arranged at the air inlet on the top of housing and goes out
QI KOU；Heating tube.Wherein, dividing plate is vertically arranged with the inside of housing, the air inlet and gas outlet are located at the dividing plate respectively
Both sides, the dividing plate forms the gas channel of connection dividing plate both sides in the bottom of the housing；At least two heating tube point
The both sides of the dividing plate are not arranged at；Be located in the housing near gas outlet and temperature sensor be set, and the heating tube with
Control chamber connects.
By the dividing plate in the housing of air heater disposed as described above and heating tube, can be by increasing gas
Flow distance under heated state and ensure the sufficient heat time heating time to gas, without larger volume with
And excessive heating power is capable of achieving the abundant heating to gas.By arranging temperature sensor and heating tube being carried out solely
Site control, effectively can be heated to gas as needed, so that heats are stable, overcome prior art
The big shortcoming of temperature fluctuation, for example, can control temperature fluctuation range within 2 degrees Celsius.
Used as improvement of the present utility model, the base plate of housing is provided with discharge outlet.
By the setting, overcome prior art air heater cannot draining problem.
Used as further improvement of the present utility model, the heating tube is electric heating tube.
The advantage of electric heating tube is that the efficiency of heating surface is high, and disclosure satisfy that carries out the requirement of quick heating to gas.
Further improve as of the present utility model, the heating tube is provided with radiating fin.
The heating surface area that radiating fin can increase gas is set, so as to improve the efficiency of heating surface.
As of the present utility model alternatively improved, at least one heating tube is respectively provided with the both sides of the dividing plate.
As another improvement of the present utility model, two heating tubes are respectively provided with the both sides of the dividing plate, and often
Two heating tubes of side are attached in housing from the top board and base plate of housing respectively.
By above-mentioned improvement, can be further ensured that gas is fully added in the flow process inside air heater
Heat.
As of the present utility model alternatively improved, axis setting of the dividing plate along housing.
The setting ensure that pressure stability of the gas in flow process, so which is heated evenly.
As further improvement of the utility model, the air inlet and gas outlet along the highly identical of housing axis,
And the top board under conditions of the flowing of without prejudice to gas close proximity to housing.
By above-mentioned improvement, can housing it is highly constant in the case of increase the flow path of gas as far as possible, so as to
Extend the heat time heating time of gas, improve space availability ratio.
Further improve as of the present utility model, the dividing plate itself has heating function.
The heats of the air heater can be further enhanced by the setting.
Description of the drawings
Fig. 1 is the longitudinal sectional view of the edge perpendicular to the plane of dividing plate of the air heater of embodiment of the present utility model,
Heating tube not shown in which；
Fig. 2 is the longitudinal direction along the plane in 90 ° with the plane of Fig. 1 of the air heater of embodiment of the present utility model
Sectional view；
Fig. 3 is the top view of the air heater of embodiment of the present utility model；
Fig. 4 is the structural representation of a heating tube of embodiment of the present utility model；
Fig. 5 is the scheme of installation of the heating tube of embodiment of the present utility model.
Specific embodiment
This utility model is expanded on further below with reference to the drawings and specific embodiments.It should be understood that these embodiments are only
For illustrating this utility model rather than scope of the present utility model will be limited.It will be appreciated to those of skill in the art that
Under the teaching of claim of the present utility model, various modifications and change can be made to this utility model, and these modifications and
Change all should be fallen within the application appending claims limited range.
Fig. 1 to Fig. 3 shows preferred embodiment of the present utility model, and the maximum temperature rise of the air heater is 30 DEG C, work
Make pressure for 1～10bar.As shown in Figure 1 to Figure 3, air heater has substantially tubular housing 1, and the housing includes top
Plate, base plate and cylinder portion.The top of housing 1 have respectively for make air inlet 2 that gas to be heated enters with make through
The gas outlet 3 that the gas of heating is discharged.Air inlet and gas outlet respectively with the air heater outside air inlet pipe and escape pipe
(not shown) connects, for example, connected by modes such as screw thread, flanges.Air inlet and gas outlet are preferably at identical height,
And the top board in the case where not affecting gas to flow close proximity to housing, so that gas to be heated is in air heater
It is sufficiently heated, i.e., the distance that increase gas flows as far as possible in the case where the longitudinal size of housing is fixed, as mentioned below.
In the embodiment shown in the figures, circumferentially-spaced preferably 180 ° between air inlet and gas outlet, and it is highly consistent.But need
It is noted that the needs of the installation site according to the air inlet pipe and escape pipe for being connected to the air heater, are also adopted by other
The interval of angle.
In the housing of air heater, the dividing plate 4 that air inlet and gas outlet separate is vertically arranged with, as shown in Figure 1
Preferred embodiment of the present utility model in, divider upright in air inlet 2 and gas outlet 3 axis arrange so that air inlet
With gas outlet respectively positioned at the both sides of dividing plate.Specifically, the lower surface of the top board of the heater is bonded at the top of dividing plate, should be every
Two sides of plate are respectively engaged to the inner surface in the cylinder portion of the air heater, engage for example with the mode of welding.And every
The bottom of plate is then spaced apart with the base plate of air heater, so as to form the gas channel of the both sides of connection dividing plate.The stream of air-flow
Dynamic path is as direction of the arrows shown in fig.In preferred embodiment as shown in Figure 2, effective actual internal area of the gas channel is not
It is less than air inlet or the sectional area of gas outlet, unaffected by the gas flow of the air heater so as to ensure.
In preferred embodiment of the present utility model as shown in figures 1 and 3, it is separately installed with the both sides of dividing plate 4 and adds
Heat pipe, such as electric heating tube 5.At least one electric heating tube is set in every side of dividing plate, is preferably arranged in every side of dividing plate
Two electric heating tubes, so that gas is heated fully.Preferably, two electric heating tubes 5 of the same side are respectively from the top board of housing
The inside of housing is attached to base plate, so that gas fully contacts electrical heating during flowing in heater as far as possible
Pipe, thus improves the space availability ratio of heater while the efficiency of heating surface is ensured.For example, as shown in figure 3, positioned at dividing plate
Per side, top board electric heating tube installing port 8 and base plate electric heating tube installing port 9 are set on the top board and base plate of housing respectively.
The length of electric heating tube is preferably close to the length with housing, and for example, the length of electric heating tube can be about the 0.8 of shell length
To 0.9 times, about 0.9 times of shell length is preferably reached.In addition, the diameter of electric heating tube, positioned at two of homonymy of dividing plate
Interval between the cylinder portion of spacing, each electric heating tube and dividing plate and housing between electric heating tube will be arranged to guarantee and make gas
Body is heated evenly.In preferred embodiment of the present utility model, as shown in Figure 4 and Figure 5, electric heating tube is provided with radiating fin
Piece, so as to increase the heating surface area of gas, improves the efficiency of heating surface, and can realize to flowing gas in compact space
It is quick to heat.It is pointed out that Fig. 5 is 4 electric heating tubes scheme of installation in the housing, the two of the left side that there is shown with
Two electrothermal tubes on individual electric heating tube and the right are looked with overlapped part or with common longitudinal axis, but
It is being spaced apart on the direction of the figure place plane between actually two electrothermal tubes.
Further, as shown in figure 1, temperature sensor installing port 6 is provided with the top board of housing, temperature sensor peace
Dress mouth 6 is located at the air outlet side of dividing plate 4 such that it is able to which temperature sensor (not shown) is installed near gas outlet 3, to detect
The temperature of gas outlet expellant gas will be passed through after heating.Each electric heating tube 5 is electric with electric cabinet (not shown) respectively
Connection.Electric cabinet can be controlled to each electric heating tube accordingly according to the feedback of temperature sensor, so that after heating
Expellant gas reach the temperature of setting.For example, if the temperature of temperature sensor detection is less than required temperature value, then
Electric cabinet can operate to improve the heating power of corresponding electric heating tube.Preferably, if the temperature of temperature sensor detection
Higher than required temperature value, then electric cabinet can operate to reduce the heating work(of corresponding one or more electric heating tubes
Rate.In order to realize electrical connection each with electric cabinet, can each electric heating tube one end arrange electrical connectors, such as Fig. 4 and
Shown in Fig. 5, electrical connectors 10 after electric heating tube 5 is installed in housing positioned at the outside of housing, so as to it is convenient with it is automatically controlled
Case realizes electrical connection, as shown in the D-D views in Fig. 4.In addition, the electrical connectors can be installed in protective cover, improve anti-
Shield grade simplifies the external structure of air heater to IP65.
In addition, as shown in Figures 2 and 3, the base plate of housing is provided with discharge outlet 7, so as to ensure folded by heated gas
Band or the water for producing will not accumulate in the bottom of housing.The water of residual is built up in the housing,
On the other hand, the water of residual can absorb heat during heating, so if the residual water of accumulation is more to affect heating
Effect.In order to ensure to be smoothly discharged out the water of residual, it is unlikely to gas leakage in heating process again, preferably
Airtight sealing lid (not shown) is set in discharge outlet, for example, is threaded connection.In heating process, the sealing is tightened
Lid, to ensure that gas will not overflow；Under non-heated state, the closure can be turned on as needed to discharge the water of residual.
Alternatively, stop valve (not shown) can be set in discharge outlet.During heating, the stop valve is closed, to ensure gas
Body will not overflow；Under non-heated state, can select to open stop valve to discharge the water of residual.In another kind of enforcement for substituting
In example, timing drainage valve (not shown) is set in discharge outlet.During heater works, drain valve being capable of time opening
And closing, so as to the water for being automatically drained out remaining.
Although showing various embodiments above according to different embodiments and occupation mode, it will be appreciated that these realities
Applying example is schematic and does not limit protection domain of the present utility model.Those skilled in the art can be in this specification
Various deformation, change, additional and improvement are carried out under teaching.
Claims (10)
1. a kind of tubular air heater for heating flowing gas, which includes：
Housing, the housing include top board, base plate and cylinder portion,
Air inlet and the gas outlet on the top of housing are arranged at,
Heating tube,
It is characterized in that：
Dividing plate is vertically arranged with the inside of housing, the air inlet and gas outlet are respectively positioned at the both sides of the dividing plate, the dividing plate
The gas channel of connection dividing plate both sides is formed in the bottom of the housing, is located in housing near gas outlet and temperature sensing is set
Device, and the heating tube is connected with control chamber.
2. air heater according to claim 1, it is characterised in that：The base plate of the housing is provided with discharge outlet.
3. air heater according to claim 1 and 2, it is characterised in that：The heating tube is electric heating tube.
4. air heater according to claim 1 and 2, it is characterised in that：The heating tube is provided with radiating fin.
5. air heater according to claim 1 and 2, it is characterised in that：It is respectively provided in the both sides of the dividing plate
A few heating tube.
6. air heater according to claim 5, it is characterised in that：Two are respectively provided with the both sides of the dividing plate to add
Heat pipe.
7. air heater according to claim 6, it is characterised in that：Positioned at two heating tubes point of every side of dividing plate
It is not attached in housing from the top board and base plate of housing.
8. air heater according to claim 1 and 2, it is characterised in that：The dividing plate is arranged along the axis of housing.
9. air heater according to claim 1 and 2, it is characterised in that：The air inlet and gas outlet are along housing
Axis it is highly identical.
10. air heater according to claim 1 and 2, it is characterised in that：The dividing plate itself has heating function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620902131.3U CN206055947U (en) | 2016-08-18 | 2016-08-18 | Air heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620902131.3U CN206055947U (en) | 2016-08-18 | 2016-08-18 | Air heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206055947U true CN206055947U (en) | 2017-03-29 |
Family
ID=58383424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620902131.3U Active CN206055947U (en) | 2016-08-18 | 2016-08-18 | Air heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206055947U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102137564B1 (en) * | 2019-01-29 | 2020-08-06 | 중앙대학교 산학협력단 | Experimental apparatus for natural convection and forced convection |
-
2016
- 2016-08-18 CN CN201620902131.3U patent/CN206055947U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102137564B1 (en) * | 2019-01-29 | 2020-08-06 | 중앙대학교 산학협력단 | Experimental apparatus for natural convection and forced convection |
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