CN205300340U - Jet flow pipe - Google Patents
Jet flow pipe Download PDFInfo
- Publication number
- CN205300340U CN205300340U CN201620069091.9U CN201620069091U CN205300340U CN 205300340 U CN205300340 U CN 205300340U CN 201620069091 U CN201620069091 U CN 201620069091U CN 205300340 U CN205300340 U CN 205300340U
- Authority
- CN
- China
- Prior art keywords
- outer tube
- pipe
- jet flow
- jet
- flow 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a thermal engineering equipment specifically is a jet flow pipe, including a plurality of jet flow pipe units, the jet flow pipe unit includes inner tube and outer tube, and the lower extreme of inner tube seals, and the excircle of inner tube is equipped with the spurt hole, and inside and interval that the outer tube was located with the axle sleeve to the inner tube have living space, and the upper end of inner tube is equipped with screwed joint, and the upper end of outer tube is equipped with the internal thread, and the lower extreme of outer tube is equipped with down the internal thread, and inner tube and outer tube pass through screwed joint and last female connection, the jet flow pipe unit that the axial is adjacent passes through screwed joint and lower female connection. Compared with the prior art, the utility model discloses jet flow pipe's beneficial effect does: through setting up a plurality of jet flow pipe units, reduce the interference of upper reaches jet gas current to low reaches air injection to increase heat exchange efficiency, increase jet flow pipe's life.
Description
Technical field
The utility model relates to Thermal Power Engineering equipment, specifically a kind of jet pipe.
Background technology
The heat transmission of interchanger for realizing between the medium of two kinds of differing tempss. Jet heat exchanger utilizes the shock peening transmission of heat by convection of air-flow, has the advantage that heat exchange efficiency is high. The core component of jet heat exchanger is jet pipe, comprises inner and outer tubes, and outer coaxial tube is sheathed on the outside also interval of interior pipe and has living space, and the anchor ring between interior pipe and outer tube upper end is closed, and the lower end closed of interior pipe, the cylindrical of interior pipe is evenly equipped with jet flow hole. During work, air enters after interior pipe by jet flow hole high velocity spray to outer tube wall, under the shock action of air-flow, makes the laminar boundary layer turbulent flowization between high-temperature flue gas and outer pipe surface, enhances transmission of heat by convection, it is to increase heat exchange efficiency. In order to increase heat exchange process, improve heat exchange efficiency, sometimes need by jet pipe arrange longer, due to the gas flow downstream that the jet flow hole of upstream is sprayed, the jet-impingement in jet flow hole, downstream can be produced interference, affect the heat exchange in jet pipe downstream, reduce heat exchange efficiency and the work-ing life of jet pipe. The length of this kind of interference and jet pipe is proportional relation.
Practical novel content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, it is provided that the technical scheme of the jet pipe that a kind of long service life, heat exchange efficiency are high.
Technical problem to be solved in the utility model realizes by the following technical solutions: a kind of jet pipe, comprise multiple jet pipe unit, described jet pipe unit comprises inner and outer tubes, the lower end closed of described interior pipe, the cylindrical of interior pipe is provided with jet flow hole, and interior pipe coaxial sleeve is located at the inside of outer tube and interval has living space, the upper end of interior pipe is provided with threaded connector, the upper end of outer tube is provided with internal thread, and the lower end of outer tube is provided with lower internal thread, and inner and outer tubes are connected by threaded connector and upper internal thread; Axially adjacent jet pipe unit is connected by threaded connector and lower internal thread.
The technical solution of the utility model also has: described threaded connector is welded on the upper end of interior pipe.
The technical solution of the utility model also has: the middle part of described threaded connector is provided with limiting plate, and for limiting the screw-in degree of depth of interior pipe and threaded connector, the cross section outline of described limiting plate is positive hexagon, is convenient to threaded together joint.
The technical solution of the utility model also has: the layout density in described jet flow hole increases gradually along the lower end of the inside pipe in upper end of interior pipe.Adopt the technical program, it is possible to increase the air jet stream amount in downstream, thus strengthen the heat exchange in jet pipe downstream.
The technical solution of the utility model also has: the outside of described interior pipe is provided with centering bracing frame, and described centering bracing frame is positioned at the bottom of pipe. For making inner and outer tubes coaxial when mounted, and interior Guan Yin is prevented to be heated and be out of shape.
The technical solution of the utility model also has: described centering bracing frame welds on inner pipe.
Relative to prior art, the useful effect of the utility model jet pipe is: by arranging multiple jet pipe unit, reduces the interference that downstream airflow is sprayed by injected upstream air-flow, thus increases heat exchange efficiency and work-ing life.
Accompanying drawing explanation
Fig. 1 is the sectional structure schematic diagram of jet pipe.
Fig. 2 is the structural representation of interior pipe.
Fig. 3 is the structural representation of outer tube.
In figure: 1, interior pipe, 2, outer tube, 3, jet flow hole, 4, threaded connector, 5, upper internal thread, 6, lower internal thread, 7, limiting plate, 8, to medium-height trestle.
Embodiment
For the technology feature of this scheme can be clearly demonstrated, with reference to the accompanying drawings the utility model embodiment is described further below.
As shown in Fig. 1 ~ Fig. 3, a kind of jet pipe, comprising two jet pipe unit, jet pipe unit comprises interior pipe 1 and outer tube 2, the lower end closed of interior pipe 1, the cylindrical of interior pipe 1 is provided with jet flow hole 3, interior pipe 1 coaxial sleeve is located at the inside of outer tube 2 and interval has living space, and the upper end of interior pipe 1 is welded with threaded connector 4, and the upper end of outer tube 2 is provided with internal thread 5, the lower end of outer tube 2 is provided with lower internal thread 6, and interior pipe 1 and outer tube 2 are connected by threaded connector 4 and upper internal thread 5; Axially adjacent jet pipe unit is connected by threaded connector 4 and lower internal thread 6.
The middle part of threaded connector 4 is provided with limiting plate 7, and for limiting the screw-in degree of depth of interior pipe 1 with threaded connector 4, the cross section outline of limiting plate 7 is positive hexagon, is convenient to threaded together joint 4.
The layout density in jet flow hole 3 increases gradually along the lower end of the inside pipe in upper end 1 of interior pipe 1, can increase the air jet stream amount in downstream like this, thus strengthen the heat exchange in jet pipe downstream.
The outside weldings of interior pipe 1 has centering bracing frame 8, for making interior pipe 1 and outer tube 2 coaxial when mounted, and prevents interior pipe 1 to be out of shape because being heated, and centering bracing frame 8 is positioned at the bottom of pipe 1.
Above in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, it is also possible to make a variety of changes under the prerequisite not departing from the utility model objective.
Claims (6)
1. a jet pipe, it is characterized in that: comprise multiple jet pipe unit, described jet pipe unit comprises interior pipe (1) and outer tube (2), the lower end closed of described interior pipe (1), the cylindrical of interior pipe (1) is provided with jet flow hole (3), interior pipe (1) coaxial sleeve is located at the inside of outer tube (2) and interval has living space, the upper end of interior pipe (1) is provided with threaded connector (4), the upper end of outer tube (2) is provided with internal thread (5), the lower end of outer tube (2) is provided with lower internal thread (6), interior pipe (1) and outer tube (2) are connected by threaded connector (4) and upper internal thread (5), axially adjacent jet pipe unit is connected by threaded connector (4) and lower internal thread (6).
2. jet pipe according to claim 1, it is characterised in that: described threaded connector (4) is welded on the upper end of interior pipe (1).
3. jet pipe according to claim 2, it is characterised in that: the middle part of described threaded connector (4) is provided with limiting plate (7), and the cross section outline of described limiting plate (7) is positive hexagon.
4. according to the arbitrary described jet pipe of claim 1 ~ 3, it is characterised in that: the lower end that the layout density of described jet flow hole (3) inwardly manages (1) along the upper end of interior pipe (1) increases gradually.
5. according to the arbitrary described jet pipe of claim 1 ~ 3, it is characterised in that: the outside of described interior pipe (1) is provided with centering bracing frame (8), and described centering bracing frame (8) is positioned at the bottom of pipe (1).
6. jet pipe according to claim 5, it is characterised in that: described centering bracing frame (8) is welded on interior pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069091.9U CN205300340U (en) | 2016-01-25 | 2016-01-25 | Jet flow pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620069091.9U CN205300340U (en) | 2016-01-25 | 2016-01-25 | Jet flow pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205300340U true CN205300340U (en) | 2016-06-08 |
Family
ID=56427231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620069091.9U Expired - Fee Related CN205300340U (en) | 2016-01-25 | 2016-01-25 | Jet flow pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205300340U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177690A1 (en) * | 2019-03-05 | 2020-09-10 | 中国科学院力学研究所 | Jet-flow self-cooling device |
-
2016
- 2016-01-25 CN CN201620069091.9U patent/CN205300340U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020177690A1 (en) * | 2019-03-05 | 2020-09-10 | 中国科学院力学研究所 | Jet-flow self-cooling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160608 Termination date: 20200125 |