AU2021100272A4 - Novel ultra-high strength rpc air duct pipe - Google Patents
Novel ultra-high strength rpc air duct pipe Download PDFInfo
- Publication number
- AU2021100272A4 AU2021100272A4 AU2021100272A AU2021100272A AU2021100272A4 AU 2021100272 A4 AU2021100272 A4 AU 2021100272A4 AU 2021100272 A AU2021100272 A AU 2021100272A AU 2021100272 A AU2021100272 A AU 2021100272A AU 2021100272 A4 AU2021100272 A4 AU 2021100272A4
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- AU
- Australia
- Prior art keywords
- pipe
- fixing
- parts
- slot
- slots
- 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.)
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- 239000000843 powder Substances 0.000 claims abstract description 14
- 239000007769 metal material Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 6
- 235000019738 Limestone Nutrition 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 5
- 239000003638 chemical reducing agent Substances 0.000 claims description 5
- 239000003623 enhancer Substances 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000006028 limestone Substances 0.000 claims description 5
- 239000010453 quartz Substances 0.000 claims description 5
- 239000004576 sand Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/08—Ventilation arrangements in connection with air ducts, e.g. arrangements for mounting ventilators
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/003—Ventilation of traffic tunnels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/04—Air ducts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/18—Double-walled pipes; Multi-channel pipes or pipe assemblies
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The present disclosure discloses a novel ultra-high strength RPC (Reactive Powder Concrete)
air duct pipe, including a pipe body. The pipe body includes an inner pipe made of a metal
material; an outer wall of the inner pipe is fixedly connected with an outer pipe; two ends of the
inner pipe are provided with filter devices; two clamping slots and two through slots are formed
in an inner wall of each end of the inner pipe; and each filter device is fixed jointly by the two
clamping slots. By means of setting the pipe body to be the inner pipe made of the metal
material and the outer pipe made of an RPC material, the present disclosure can enhance the
strength of the pipe body and prolong the service life of the pipe body; in addition, by means of
providing the filter devices that are easy to remove, the present disclosure can not only filter and
purify the gas in the pipe body to avoid exhaust gas from being directly emitted from the pipe
body to an external environment to pollute the external environment, but also facilitate
replacing the filter devices to improve the working efficiency of an operator.
1/3
DRAWINGS:
A
13 12 11
23
14 - 2
25
.16
A
FIG. 1
Description
1/3
A 13 12 11
23
14 - 2 25
.16 A FIG. 1
[0001] The present disclosure relates to the field of high strength air duct pipes, and more particularly relates to a novel ultra-high strength RPC air duct pipe.
[0002] In a tunnel, running vehicles will continuously emit harmful exhaust gas and smoke. When the concentration of the emitted harmful exhaust gas and smoke exceeds a certain value, it will be harmful to drivers and passengers and affect their health and driving safety, so it is a necessary condition for the driving safety to maintain a good air state. Air duct pipes need to be arranged for ventilation to reduce the concentration of the harmful gas or pollutants in the tunnel to or below an allowable concentration, so as to guarantee the safety and comfortableness of driving of automobiles.
[0003] In the prior art, an air duct pipe for a tunnel is generally cast in place or prefabricated. Although a cast-in-place method makes a ventilation duct have higher strength, the construction is complicated and the construction period is long. A method for transporting prefabricated pipes to the site for splicing includes a fewer of construction steps and has a relatively short construction period, but the strength is lower. In addition, all air duct pipes that are constructed by the two methods have only a ventilation function, and cannot filter the exhaust gas and smoke, which will easily affect the environment outside the tunnel.
[0004] The present disclosure is directed to solve the deficiencies in the prior art, and provides a novel ultra-high strength RPC (Reactive Powder Concrete) air duct pipe, so as to solve the problems in the prior art.
[0005] In order to achieve the above objective, the present disclosure adopts the following technical solution:
[0006] A novel ultra-high strength RPC air duct pipe includes a pipe body. The pipe body includes an inner pipe made of a metal material; an inner wall of the inner pipe isfixedly connected with a plurality of supporting rings; an outer wall of the inner pipe is fixedly connected with an outer pipe; two ends of the inner pipe are provided with filter devices; two clamping slots and two through slots are formed in an inner wall of each end of the inner pipe; and each filter device is fixed jointly by the two clamping slots.
[0007] Preferably, each filter device includes a filter plate; a middle portion of the filter plate is provided with a filter slot; the interior of the filter slot is fixedly connected with a filter net; two sides of the filter plate are provided with fixing holes; the interior of each fixing hole is slidably connected with a fixing block; a spring is fixedly connected between each fixing block and the hole bottom of the corresponding fixing hole; the fixing blocks and the clamping slots are in sliding connection on a one-to-one correspondence basis; and the fixing blocks and the through slots are also in sliding connection on a one-to-one correspondence basis.
[0008] Preferably, an inner wall of each clamping slot is provided with a first stop block and a second stop block, the cross sections of which are trapezoid; a first fixing slot is arranged between the first stop block and the second stop block; and a second fixing slot is arranged between the second stop block and the slot bottom of the corresponding clamping slot.
[0009] Preferably, two annular slots are also arranged on the inner wall of the inner pipe; each annular slot and the two second fixing slots are disposed on a one-to-one correspondence basis; and each through slot communicates with the corresponding annular slot.
[0010] Preferably, raw materials of the outer pipe include according to a weight ratio: 27 to 38 parts of cement, 8 to 10 parts of fine sand, 8 to 9 parts offinely-ground quartz powder, 39 to 41 parts of fine limestone powder, 6 to 8 parts of steel fiber, 1 to 2 parts of a water reducer, 6 to 8 parts of water and 5 to 7 parts of an enhancer.
[0011] The present disclosure has the advantages that: By means of setting the pipe body to be the inner pipe made of the metal material and the outer pipe made of an RPC material, the novel ultra-high strength air duct pipe provided by the present disclosure can enhance the strength of the pipe body and prolong the service life of the pipe body; in addition, by means of providing the filter devices that are easy to remove, the novel ultra-high strength air duct pipe can not only filter and purify the gas in the pipe body to avoid exhaust gas from being directly emitted from the pipe body to an external environment to pollute the external environment, but also facilitate replacing the filter devices to improve the working efficiency of an operator.
[0012] FIG. 1 is a schematic diagram of a basic structure of the present disclosure;
[0013] FIG. 2 is a cutaway view along A-A in FIG. 1;
[0014] FIG. 3 is a cutaway view along B-B in FIG. 1; and
[0015] FIG. 4 is a partially enlarged diagram of a portion C in FIG. 1.
[0016] In order to make the objectives, technical solutions, and advantages of the present disclosure clearer, the present disclosure is further described in detail below with reference to accompanying drawings and embodiments. It should be understood that the specific embodiments described here are merely to illustrate and explain the present disclosure, and not intended to limit the present disclosure.
[0017] Embodiment 1
[0018] As shown in Figs. 1 to 4, an ultra-high strength RPC (Reactive Powder Concrete) air duct pipe provided by the present disclosure includes a pipe body 1. The pipe body 1 includes an inner pipe 11 made of a metal material. An outer wall of the inner pipe 11 isfixedly connected with an outer pipe 12. A material of the outer pipe 12 is RPC, and this material has rupture strength and compressive strength which are 5 to 10 times those of traditional concrete, has a thickness which is 1/5 of that of the traditional concrete, is light in weight and convenient to install, and can improve the applicability of the pipe body 1. Two ends of the inner pipe 11 are provided with filter devices 2. Two clamping slots 13 and two through slots 14 are formed in an inner wall of each end of the inner pipe 11; and each filter device 2 is fixed jointly by the two clamping slots 13. An inner wall of the inner pipe 11 is fixedly connected with a plurality of supporting rings 16. The supporting rings 16 can play a role of supporting the inner pipe 11, thereby enhancing the compressive strength of the pipe body 1 and prolonging the service life of the pipe body 1.
[0019] Each filter device 2 includes a filter plate 21; a middle portion of the filter plate 21 is provided with a filter slot; the interior of the filter slot is fixedly connected with a filter net 22; two sides of the filter plate 21 are provided with fixing holes 23; the interior of each fixing hole 23 is slidably connected with a fixing block 24; a spring 25 is fixedly connected between each fixing block 24 and the hole bottom of the corresponding fixing hole 23; the fixing blocks 24 and the clamping slots 13 are in sliding connection on a one-to-one correspondence basis, and the fixing blocks 24 and the through slots 14 are also in sliding connection on a one-to-one correspondence basis. The filter devices 2 can filter and purify gas in the pipe body to avoid exhaust gas from being directly emitted from the pipe body to an external environment to pollute the external environment.
[0020] An inner wall of each clamping slot 13 is provided with a first stop block 131 and a second stop block 132, the cross sections of which are trapezoid; a first fixing slot 133 is arranged between the first stop block 131 and the second stop block 132; and a second fixing slot 134 is arranged between the second stop block 132 and the slot bottom of the corresponding clamping slot 13. Two annular slots 15 are also arranged on the inner wall of the inner pipe 11; each annular slot 15 and the two second fixing slots 134 are disposed on a one-to-one correspondence basis; and each through slot 14 communicates with the corresponding annular slot 15. After the two fixing blocks 24 are aligned with the two clamping slots 13, the filter plate 21 is pressed. The slopes of the first stop blocks 131 squeeze thefixing blocks 24 to compress the springs 25, and the fixing blocks 24 return into thefixing holes 23. When the fixing blocks 24 enter the first fixing slots 133, the fixing blocks 24 are no longer squeezed; at this time, the springs 25 extend to lock the fixing blocks 24 into the first fixing slots 133 to fix the filter plate 21 in the first fixing slots 133. When the filter plate 21 needs to be removed for replacement, the filter plate 21 continues to be pressed, and the filter plate 21 continues to move in the clamping slots 13 to cause the slopes of the second stop blocks 132 to squeeze the fixing blocks 24 to compress the springs 25, and the fixing blocks 24 return into the fixing holes 23. When the fixing blocks 24 enter the second fixing slots 134, the filter plate 21 is rotated to drive the fixing blocks 24 to slide in the annular slots 15. When the fixing block 24 correspond to the two through slots 14, the filter plate 21 can be pulled to cause the fixing blocks 24 to move to the outside along the two through slots 14, so that thefilter plate 21 is removed for replacement and maintenance.
[0021] Raw materials of the outer pipe 12 include according to a weight ratio: 36 parts of cement, 8 parts of fine sand, 9 parts offinely-ground quartz powder, 41 parts offine limestone powder, 8 parts of steel fiber, 1 part of a water reducer, 8 parts of water and 7 parts of an enhancer. The outer pipe 12 made of the above raw materials has rupture strength and compressive strength which are 5 to 10 times those of traditional concrete, has a thickness which is 1/5 of that of the traditional concrete, is light in weight and convenient to install, and can improve the applicability of the pipe body 1.
[0022] During use, after the two fixing blocks 24 are aligned with the two clamping slots 13, the filter plate 21 is pressed to lock the fixing blocks 24 into the first fixing slots 133, so that the filter plate 21 is fixed in the first fixing slots 133. When the filter plate 21 needs to be removed for replacement, the filter plate 21 continues to be pressed, and the filter plate 21 continues to move in the clamping slots 13; when the fixing blocks 24 enter the second fixing slots 134, the filter plate 21 is rotated to drive the fixing blocks 24 to slide in the annular slots 15. When the fixing block 24 correspond to the two through slots 14, the filter plate 21 can be pulled to cause the fixing blocks 24 to move to the outside along the two through slots 14, so that the filter plate 21 is removed for replacement and maintenance.
[0023] Embodiment 2
[0024] The raw materials of the outer pipe 12 in Embodiment 1 include according to a weight ratio: 33 parts of cement, 8 parts of fine sand, 9 parts of finely-ground quartz powder, 40 parts of fine limestone powder, 7 parts of steel fiber, 2 parts of a water reducer, 7 parts of water and 7 parts of enhancer.
[0025] Embodiment 3
[0026] The raw materials of the outer pipe 12 in Embodiment 1 include according to a weight ratio: 37 parts of cement, 10 parts of fine sand, 9 parts of finely-ground quartz powder, 39 parts of fine limestone powder, 8 parts of steel fiber, 1 parts of a water reducer, 8 parts of water and 5 parts of enhancer.
[0027] Although the embodiments of the present disclosure have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and transformations can be made to these embodiments without departing from the principle and spirit of the present disclosure. The scope of the present disclosure is defined by the attached claims and their equivalents.
Claims (5)
1. A novel ultra-high strength RPC (Reactive Powder Concrete) air duct pipe, comprising a pipe body (1), wherein the pipe body (1) comprises an inner pipe (11) made of a metal material; an inner wall of the inner pipe (11) isfixedly connected with a plurality of supporting rings (16); an outer wall of the inner pipe (11) is fixedly connected with an outer pipe (12); two ends of the inner pipe (11) are provided with filter devices (2); two clamping slots (13) and two through slots (14) are formed in an inner wall of each end of the inner pipe (11); and each filter device (2) is fixed jointly by the two clamping slots (13).
2. The novel ultra-high strength RPC air duct pipe according to claim 1, wherein each filter device (2) comprises a filter plate (21); a middle portion of the filter plate (21) is provided with a filter slot; the interior of the filter slot isfixedly connected with a filter net (22); two sides of the filter plate (21) are provided with fixing holes (23); the interior of each fixing hole (23) is slidably connected with a fixing block (24); a spring (25) isfixedly connected between each fixing block (24) and the hole bottom of the corresponding fixing hole (23); the fixing blocks (24) and the clamping slots (13) are in sliding connection on a one-to-one correspondence basis; and the fixing blocks (24) and the through slots (14) are also in sliding connection on a one-to-one correspondence basis.
3. The novel ultra-high strength RPC air duct pipe according to claim 2, wherein an inner wall of each clamping slot (13) is provided with a first stop block (131) and a second stop block (132), the cross sections of which are trapezoid; a first fixing slot (133) is arranged between the first stop block (131) and the second stop block (132); and a second fixing slot (134) is arranged between the second stop block (132) and the slot bottom of the corresponding clamping slot (13).
4. The novel ultra-high strength RPC air duct pipe according to claim 3, wherein two annular slots (15) are also arranged on the inner wall of the inner pipe (11); each annular slot (15) and the two second fixing slots (134) are disposed on a one-to-one correspondence basis; and each through slot (14) communicates with the corresponding annular slot (15).
5. The novel ultra-high strength RPC air duct pipe according to claim 1, wherein raw materials of the outer pipe (12) comprise according to a weight ratio: 27 to 38 parts of cement, 8 to 10 parts of fine sand, 8 to 9 parts of finely-ground quartz powder, 39 to 41 parts of fine limestone powder, 6 to 8 parts of steel fiber, 1 to 2 parts of a water reducer, 6 to 8 parts of water and 5 to 7 parts of an enhancer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021100272A AU2021100272A4 (en) | 2021-01-16 | 2021-01-16 | Novel ultra-high strength rpc air duct pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2021100272A AU2021100272A4 (en) | 2021-01-16 | 2021-01-16 | Novel ultra-high strength rpc air duct pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2021100272A4 true AU2021100272A4 (en) | 2021-04-15 |
Family
ID=75397022
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2021100272A Active AU2021100272A4 (en) | 2021-01-16 | 2021-01-16 | Novel ultra-high strength rpc air duct pipe |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU2021100272A4 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047695A (en) * | 2020-09-15 | 2020-12-08 | 江西龙正科技发展有限公司 | Municipal RPC curb material and preparation method thereof |
| CN117027904A (en) * | 2023-08-24 | 2023-11-10 | 中国矿业大学 | Device and method for controlling dust flow uniformly in air duct |
-
2021
- 2021-01-16 AU AU2021100272A patent/AU2021100272A4/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112047695A (en) * | 2020-09-15 | 2020-12-08 | 江西龙正科技发展有限公司 | Municipal RPC curb material and preparation method thereof |
| CN117027904A (en) * | 2023-08-24 | 2023-11-10 | 中国矿业大学 | Device and method for controlling dust flow uniformly in air duct |
| CN117027904B (en) * | 2023-08-24 | 2024-01-26 | 中国矿业大学 | Method for controlling dust flow of air duct |
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| Date | Code | Title | Description |
|---|---|---|---|
| FGI | Letters patent sealed or granted (innovation patent) |