CN106686794A - Microwave shielding structure of exhaust pipeline - Google Patents
Microwave shielding structure of exhaust pipeline Download PDFInfo
- Publication number
- CN106686794A CN106686794A CN201610913844.4A CN201610913844A CN106686794A CN 106686794 A CN106686794 A CN 106686794A CN 201610913844 A CN201610913844 A CN 201610913844A CN 106686794 A CN106686794 A CN 106686794A
- Authority
- CN
- China
- Prior art keywords
- microwave
- blast pipe
- shielding structure
- cavity wall
- exhaust pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/64—Heating using microwaves
- H05B6/76—Prevention of microwave leakage, e.g. door sealings
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a microwave shielding structure of an exhaust pipeline. The structure comprises a microwave resonant cavity wall, an exhaust hole is formed in the microwave resonant cavity wall, an exhaust pipe is arranged in an outer wall position of the microwave resonant cavity wall, an inner hole of the exhaust pipe is communicated with the exhaust pipe, the other end of the exhaust pipe is provided with a flaring body, the bottom of the flaring body is provided with a graphite sealing ring, a honeycomb panel with honeycomb holes is arranged in the flaring body, a threaded position in the inner all of an opening of the flaring body is cooperated with a lock sleeve, and honeycomb panel is fixed to the graphite sealing ring via the lock sleeve. According to the shielding structure, the flaring body increases the area of an exhausting position, the lock sleeve fixes the honeycomb panel, the graphite sealing ring realizes seamless communication between the honeycomb panel and the exhaust pipe, and the honeycomb panel realizes magnetic shielding in a bulk-flow position; and exhausting is smooth, holes tend not to block, and a magnetic shielding effect is good.
Description
Technical field
The invention belongs to a kind of microwave shielding structure, and in particular to a kind of discharge duct microwave shielding structure.
Background technology
Microwave is a kind of cleaning, efficient novel energy, as microwave is in hydrometallurgy, food drying, organic synthesis, sample
The application of the aspects such as product process, material sintering, waste process, microwave equipment is also developed and promoted.
However, the infringement of Microwave Radiation On Human body is very big, same atmosphere pollution, water pollution and noise pollution become together environment
Pollute four big public hazards, it is necessary to suppress it is this it is invisible, can not touch and in esse pollution.Microwave heating equipment discharge duct
Generally metal tube itself is used as cut-off waveguide, or high mesh number stainless (steel) wire, sieve plate etc. are set at entrance, come
Suppress microwave leakage.Discharge duct diameter is bigger, and it is longer to reach metal tube length needed for identical shield effectiveness, when diameter it is excessive
When, pipeline fails as cut-off waveguide.The high mesh number stainless (steel) wire or expanded metal for having higher shield effectiveness to microwave exists
Using space can be caused to block under poor environment, exhaust effect is affected.
The content of the invention
The present invention proposes to solve the problems, such as prior art, its objective is to provide a kind of discharge duct micro-wave screening
Structure.
The technical scheme is that：A kind of discharge duct microwave shielding structure, including microwave resonance cavity wall, the microwave
Steam vent is formed in resonance cavity wall, blast pipe, the exhaust pipe orifice and exhaust are provided with the microwave resonance cavity wall outer wall
Pipe is connected, and the blast pipe other end is provided with enlarging body, and the enlarging body bottom is provided with the carbon seal ring of annular, described
The cellular board with honeycomb hole is provided with enlarging body in footpath, lock tube is combined with the screw thread of inwall at the enlarging body opening, institute
State lock tube cellular board is fixed in carbon seal ring.
Described enlarging body bottom forms cannelure, and the carbon seal ring is located in above-mentioned cannelure.
Internal diameter of the internal diameter of the lock tube more than blast pipe.
The blast pipe, the fixed form of enlarging body are welding.
The present invention expands area at exhaust by enlarging body, is fixed cellular board by lock tube, by carbon seal ring reality
Existing connection seamless between cellular board, blast pipe, by cellular board magnetic screen at big flow, smooth in exhaust of the present invention, hole are realized
It is not easily blocked, Magnetic Shielding Effectiveness is good.
Description of the drawings
Fig. 1 is the front view of the present invention；
Wherein：
The steam vent of 1 microwave resonance cavity wall 2
The enlarging body of 3 blast pipe 4
The cellular board of 5 carbon seal ring 6
7 lock tubes.
Specific embodiment
Hereinafter, referring to the drawings and embodiment the present invention is described in detail：
As shown in figure 1, a kind of discharge duct microwave shielding structure, including microwave resonance cavity wall 1, in the microwave resonance cavity wall 1
Steam vent 2 is formed, at the outer wall of microwave resonance cavity wall 1 blast pipe 3 is provided with, the endoporus of the blast pipe 3 connects with blast pipe 3
Logical, the other end of the blast pipe 3 is provided with enlarging body 4, and the bottom of enlarging body 4 is provided with the carbon seal ring 5 of annular, described
The cellular board 6 with honeycomb hole is provided with the internal diameter of enlarging body 4, lock tube is combined with the screw thread of inwall at the opening of enlarging body 4
7, the lock tube 7 is fixed on cellular board 6 in carbon seal ring 5.
The described bottom of enlarging body 4 forms cannelure, and the carbon seal ring 5 is located in above-mentioned cannelure.
Internal diameter of the internal diameter of the lock tube 7 more than blast pipe 3.
The blast pipe 3, the fixed form of enlarging body 4 are welding.
The thickness of the size of honeycomb hole and cellular board 6 in cellular board of the present invention 6, according to formula according to formula w=15 × 109/ f0
Calculated, wherein w is hexagon circumscribed circle diameter（cm）, f0Want screening frequencies 5~10 times are taken, honeycomb hole circumscribed circle is calculated
Diameter.The thickness of cellular board 6（cm）Calculate by formula T=Aw/27.3, A takes 60~90 dB.
Lock tube 7 can make the end face of cellular board 6 pass through seamless, good conductive between carbon seal ring 5 and blast pipe 3.
When microwave power is 1kw in microwave cavity, the circumscribed circle diameter 9 of uniform honeycomb hole in the cellular board 6
Mm, the thickness of the cellular board 6 is the mm of plate thickness 25.
Measuring at the right-hand member 20cm of lock tube 7, microwave leakage amount is less than 0.05 mW/cm2。
The present invention expands area at exhaust by enlarging body, is fixed cellular board by lock tube, by carbon seal ring reality
Existing connection seamless between cellular board, blast pipe, by cellular board magnetic screen at big flow, smooth in exhaust of the present invention, hole are realized
It is not easily blocked, Magnetic Shielding Effectiveness is good.
Claims (4)
1. a kind of discharge duct microwave shielding structure, including microwave resonance cavity wall（1）, it is characterised in that：The microwave cavity
Wall（1）Middle formation steam vent（2）, the microwave resonance cavity wall（1）Blast pipe is provided with outer wall（3）, the blast pipe（3）It is interior
Hole and blast pipe（3）Connection, the blast pipe（3）The other end is provided with enlarging body（4）, the enlarging body（4）Bottom is provided with
The carbon seal ring of annular（5）, the enlarging body（4）The cellular board with honeycomb hole is provided with internal diameter（6）, the enlarging body
（4）Lock tube is combined with opening at the screw thread of inwall（7）, the lock tube（7）By cellular board（6）It is fixed on carbon seal ring（5）
On.
2. discharge duct microwave shielding structure according to claim 1, it is characterised in that：Described enlarging body（4）Bottom
Form cannelure, the carbon seal ring（5）In above-mentioned cannelure.
3. discharge duct microwave shielding structure according to claim 1, it is characterised in that：The lock tube（7）Internal diameter it is big
In blast pipe（3）Internal diameter.
4. discharge duct microwave shielding structure according to claim 1, it is characterised in that：The blast pipe（3）, enlarging body
（4）Fixed form for welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913844.4A CN106686794B (en) | 2016-10-20 | 2016-10-20 | Microwave shielding structure of exhaust pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610913844.4A CN106686794B (en) | 2016-10-20 | 2016-10-20 | Microwave shielding structure of exhaust pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106686794A true CN106686794A (en) | 2017-05-17 |
| CN106686794B CN106686794B (en) | 2023-08-04 |
Family
ID=58839358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610913844.4A Active CN106686794B (en) | 2016-10-20 | 2016-10-20 | Microwave shielding structure of exhaust pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106686794B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4380315A1 (en) * | 2022-11-30 | 2024-06-05 | Topinox Sarl | Control box for a cooking device and cooking device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108829A (en) * | 1985-12-24 | 1987-07-01 | 约翰·埃德蒙·奥尔索斯 | The discharging equipment and the method for container |
| JPH06241020A (en) * | 1993-02-18 | 1994-08-30 | Toyota Motor Corp | Exhaust gas purifier |
| CN2509822Y (en) * | 2001-11-09 | 2002-09-04 | 中国船舶重工集团公司第七研究院第七○一研究所 | Ultrawideband cut-off waveguide ventilating box for screened room |
| CN1531374A (en) * | 1999-08-31 | 2004-09-22 | Lg电子株式会社 | Microwave device including grid mesh part |
| CN206226770U (en) * | 2016-10-20 | 2017-06-06 | 核工业理化工程研究院 | A kind of discharge duct microwave shielding structure |
-
2016
- 2016-10-20 CN CN201610913844.4A patent/CN106686794B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86108829A (en) * | 1985-12-24 | 1987-07-01 | 约翰·埃德蒙·奥尔索斯 | The discharging equipment and the method for container |
| JPH06241020A (en) * | 1993-02-18 | 1994-08-30 | Toyota Motor Corp | Exhaust gas purifier |
| CN1531374A (en) * | 1999-08-31 | 2004-09-22 | Lg电子株式会社 | Microwave device including grid mesh part |
| CN2509822Y (en) * | 2001-11-09 | 2002-09-04 | 中国船舶重工集团公司第七研究院第七○一研究所 | Ultrawideband cut-off waveguide ventilating box for screened room |
| CN206226770U (en) * | 2016-10-20 | 2017-06-06 | 核工业理化工程研究院 | A kind of discharge duct microwave shielding structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4380315A1 (en) * | 2022-11-30 | 2024-06-05 | Topinox Sarl | Control box for a cooking device and cooking device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106686794B (en) | 2023-08-04 |
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