CN215287067U - Pneumatic conveying pipeline with automatic dredging device - Google Patents
Pneumatic conveying pipeline with automatic dredging device Download PDFInfo
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- CN215287067U CN215287067U CN202121091134.0U CN202121091134U CN215287067U CN 215287067 U CN215287067 U CN 215287067U CN 202121091134 U CN202121091134 U CN 202121091134U CN 215287067 U CN215287067 U CN 215287067U
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Abstract
The utility model discloses a strength pipeline with automatic pull throughs, including strength main entrance, the reserve bypass of strength, the elbow, a plurality of valves, the three-way valve, pressure transmitter and compressed air pipeline, strength main entrance, the reserve bypass of strength, the elbow, the valve, the three-way valve, pressure transmitter connects as a whole, there is the trompil on the strength main entrance, compressed air pipeline is through this trompil and strength main entrance intercommunication, install the valve on the compressed air pipeline, pressure transmitter signal access strength transport PLC control system, accomplish the automatic switch-over of pipeline through pressure transmitter and pneumatic gate valve, utilize compressed air to dredge the operation, realize that the automatic mediation of strength pipeline is arranged stifledly, the stability of strength pipeline system operation has been improved.
Description
Technical Field
The utility model belongs to the technical field of pneumatic conveying pipeline, concretely relates to pneumatic conveying pipeline with automatic pull throughs.
Background
The pneumatic conveying process is a technology of conveying materials to a destination through a pipeline by using compressed air as a power source, and is widely applied to various fields of electric power, metallurgy, chemical engineering and the like.
The invention patent with publication number CN108579359A discloses an automatic dredging longitudinal travelling mechanism, which comprises a camera, a gear and a blockage clearing component, wherein the blockage position is determined by the camera, the blockage clearing component is driven to work by a servo motor serving as power, and when the device is blocked, the conveying work must be stopped.
In order to realize automatic switching, dredging and blockage removal of the pneumatic conveying pipeline and improve the stability of system operation, a novel pipeline dredging device is needed.
SUMMERY OF THE UTILITY MODEL
For overcoming the not enough of prior art method, the utility model aims to provide a pneumatic conveying pipeline with automatic pull throughs overcomes among the pneumatic conveying process gas-solid two-phase flow and blocks up in pipeline diversion department easily, and during the stifled period was arranged in the mediation, pneumatic conveying system must the problem of bring to rest, provides one kind for people and can dredge automatically and arrange stifled, the stable pneumatic conveying pipeline of system operation.
In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a strength conveying pipeline with automatic pull throughs, including strength main entrance, the reserve bypass of strength parallelly connected with strength main entrance both ends, a plurality of valves, pressure transmitter, the compressed air pipeline, be connected with the valve on strength main entrance and the reserve bypass of strength, pressure transmitter is located the strength main entrance, be provided with the trompil on the strength main entrance, the compressed air pipeline is through this trompil and strength main entrance intercommunication, install the valve on the compressed air pipeline, pressure transmitter signal access strength conveying PLC (programmable logic controller) control system.
Furthermore, the parallel connection part of the pneumatic main channel and the pneumatic standby bypass is a three-way valve.
Furthermore, the pneumatic main channel comprises an elbow, and the opening on the pneumatic main channel is positioned on the elbow.
Further, the pressure transmitter is arranged at the inlet of the elbow.
The beneficial effects of the technical scheme are as follows:
after the pneumatic conveying pipeline main channel is blocked, the automatic switching of the pipeline is completed through the pressure transmitter and the pneumatic gate valve, the automatic switching can be performed to the standby bypass, compressed air can be automatically started to purge, after the dredging and blockage removing operation is completed through high-pressure compressed air, the pneumatic conveying pipeline can be automatically switched back to the main channel, the automatic dredging and blockage removing of the pneumatic conveying pipeline are realized, the automatic control can be realized in the whole process of pipeline switching and blockage removing, the manual operation is not needed, the system does not need to be stopped, the operation stability is improved, the device can be integrated on the conveying pipeline in the design stage of the pneumatic conveying system, the existing pneumatic conveying pipeline can be technically improved, the stability of system operation can be improved, and the maintenance workload is reduced.
Drawings
Fig. 1 is a schematic view of an automatic dredging device for a pneumatic conveying pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention is further explained below with reference to the accompanying drawings.
In this embodiment, referring to fig. 1, the present invention provides the following technical solutions: pneumatic conveying pipeline 8 with automatic pull throughs, including pneumatic main entrance 81, the reserve bypass 82 of strength, elbow 1, a plurality of valves, be pneumatic double gate valve 3 respectively, pneumatic double gate valve 4, pneumatic gate valve 5, stop valve 6, three way valve 2, still include pressure transmitter 7 and compressed air pipeline 9, pneumatic main entrance 81 and the reserve bypass 82 of strength are parallelly connected through three way valve 2, elbow 1, pneumatic double gate valve 3, pneumatic double gate valve 4, three way valve 2, pressure transmitter 7 passes through the conveying pipeline and connects as an organic whole, pneumatic main entrance 81 is last to have the trompil, compressed air pipeline 9 communicates with pneumatic main entrance 81 through this trompil, install pneumatic gate valve 5 and stop valve 6 on the compressed air pipeline 9, the pressure transmitter signal connects into the pneumatic PLC control system.
The elbow 1 is a wear-resistant elbow and is positioned at the pipeline turning position of the pneumatic main channel 81, the pneumatic double-gate valve 3 and the pressure transmitter 7 are positioned on the pneumatic main channel 81, the pneumatic double-gate valve 3 is installed in the inlet direction of the elbow, the pressure transmitter 7 is installed between the pneumatic double-gate valve 3 and the inlet of the elbow 1, the pneumatic double-gate valve 3, the pressure transmitter 7 and the elbow 1 are connected into the pneumatic main channel 81 through a conveying pipeline, and the pneumatic double-gate valve 4 is connected onto the pneumatic standby bypass 82. The three-way valve 2 is a wear-resistant three-way valve, the pneumatic main channel 81 is connected with the pneumatic standby bypass 82 in parallel, and the parallel connection position of the two is the three-way valve 2. The pneumatic double-gate valve 3, the pressure transmitter 7, the elbow 1, the pneumatic main channel 81, the pneumatic double-gate valve 4, the pneumatic standby bypass 82 and the three-way valve 2 are connected into a whole through a conveying pipeline.
The tangent of the elbow 1 is provided with an opening which is connected with a compressed air pipeline 9, the curvature radius of the elbow 1 is not less than 5 times of the diameter of the section, and the elbow 1 and the three-way valve 2 are lined with ceramic plates or are integrally made of wear-resistant alloy.
The working temperature of the pneumatic double-gate valve 3, the pneumatic double-gate valve 4, the pneumatic gate valve 5 and the stop valve 6 is not lower than 150 ℃, the pressure grade is not lower than 1.6MPa, the valve core is made of wear-resistant materials, and the two ends of the valve body are provided with flange connectors and are matched with reverse flanges and connecting pieces.
The measuring range of the pressure transmitter 7 is 0.1MPa-1.6MPa, signals are connected into a pneumatic transmission PLC control system, and the pressure grades of the gas transmission pipeline 8 and the compressed air pipeline 9 are not lower than 1.6 MPa.
The automatic switching of pipelines is completed through the pressure transmitter 7 and the pneumatic double-gate valve 3, and compressed air is utilized to dredge, so that the pneumatic conveying pipeline is automatically dredged and blocked.
During specific implementation, firstly, a pressure transmitter 7 is arranged between the elbow 1 and the double-gate valve 3, and secondly, the elbow 1, the three-way valve 2, the pneumatic double-gate valve 3, the pneumatic double-gate valve 4 and the pressure transmitter 7 are connected with a pneumatic main channel 81 and a pneumatic standby bypass 82 into a whole through a conveying pipeline; and thirdly, installing the pneumatic gate valve 5 and the stop valve 6 on the compressed air pipe 9, and opening a hole at the tangent of the elbow 1 to be welded with the compressed air pipe 9. And finally, performing a water pressure experiment by the device, and accessing the signal of the pressure transmitter into the PLC control system to complete debugging.
When the pneumatic conveying system normally operates, the pneumatic double-gate valve 3 and the stop valve 6 are opened, the pneumatic double-gate valve 4 and the pneumatic gate valve 5 are closed, and the medium passes through the elbow 1. When the elbow 1 is blocked, the pressure in the pipe rises, the pressure transmitter transmits a pressure signal to the PLC control system, the PLC control system automatically controls the pneumatic double-gate valve 3 to be closed, the pneumatic double-gate valve 4 and the pneumatic gate valve 5 to be opened, the stop valve 6 still keeps being opened, thus, a medium bypasses a blocking point and is conveyed through the pneumatic standby bypass 82, and meanwhile, compressed air starts to be blown and swept to dredge. After the blockage point is dredged, the pressure in the pipe is reduced to a normal value, the pressure transmitter transmits a pressure signal to the PLC control system, the PLC control system automatically controls the opening of the pneumatic double-gate valve 3, the closing of the pneumatic double-gate valve 4 and the pneumatic gate valve 5, and the medium passes through the elbow 1 again.
The normal pipe pressure of the pneumatic transmission system is between 0.3 and 0.5MPa, and when the pipe pressure is higher than 0.6MPa, the blockage phenomenon can be considered to occur, so that the alarm signal of the pressure transmitter can be set to be 0.5MPa, the action signal can be set to be 0.6MPa, and when the pipe pressure is higher than 0.5MPa, the PLC control system gives an alarm prompt; when the pipe pressure is higher than 0.6MPa, the PLC control system automatically operates the pneumatic valve to open and close, the compressed air pressure is about 0.8MPa, and the plugging point is directly sprayed without reducing the pressure during dredging operation.
The pneumatic conveying pipeline is automatically dredged, necessary maintenance is needed, and valve jam and leakage are prevented, and misstatement of a pressure transmitter are prevented.
Finally, it should be noted that: while the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a strength pipeline with automatic pull throughs, including strength main entrance, the reserve bypass of strength parallelly connected with strength main entrance both ends, a plurality of valves, pressure transmitter, compressed air pipeline, be connected with the valve on strength main entrance and the reserve bypass of strength, pressure transmitter is located strength main entrance, be provided with the trompil on its characterized in that strength main entrance, compressed air pipeline is through this trompil and strength main entrance intercommunication, install the valve on the compressed air pipeline, pressure transmitter signal access strength transport PLC control system.
2. The pneumatic conveying pipeline with the automatic dredging device as claimed in claim 1, wherein the pneumatic main channel comprises an elbow, and the opening of the pneumatic main channel is positioned on the elbow.
3. The pneumatic conveying pipeline with automatic dredging device of claim 1 or 2, wherein the pressure transmitter is arranged at the inlet of the elbow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121091134.0U CN215287067U (en) | 2021-05-20 | 2021-05-20 | Pneumatic conveying pipeline with automatic dredging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121091134.0U CN215287067U (en) | 2021-05-20 | 2021-05-20 | Pneumatic conveying pipeline with automatic dredging device |
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| Publication Number | Publication Date |
|---|---|
| CN215287067U true CN215287067U (en) | 2021-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121091134.0U Active CN215287067U (en) | 2021-05-20 | 2021-05-20 | Pneumatic conveying pipeline with automatic dredging device |
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| CN (1) | CN215287067U (en) |
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2021
- 2021-05-20 CN CN202121091134.0U patent/CN215287067U/en active Active
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Address after: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee after: Hubei Electric Power Planning, Design and Research Institute Co.,Ltd. Address before: 430040 1 new bridge four, Jin Yin Hu Street, Dongxihu District, Wuhan, Hubei Patentee before: POWERCHINA HUBEI ELECTRIC ENGINEERING Corp.,Ltd. |