CN214059207U - Automatic pressure maintaining system for pneumatic conveying - Google Patents
Automatic pressure maintaining system for pneumatic conveying Download PDFInfo
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- CN214059207U CN214059207U CN202022874881.3U CN202022874881U CN214059207U CN 214059207 U CN214059207 U CN 214059207U CN 202022874881 U CN202022874881 U CN 202022874881U CN 214059207 U CN214059207 U CN 214059207U
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- blower
- pneumatic conveying
- air
- pressure transmitter
- bellows
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Abstract
The utility model is suitable for the pneumatic conveying field, provides a pneumatic conveying automatic pressure maintaining system, including air-blower and the pneumatic conveying house steward that is connected with it, the pneumatic conveying house steward is last and be close to the air-blower hookup location and be equipped with a section of ripple subassembly, still be connected with the material delivery branch pipe on the pneumatic conveying house steward, the pneumatic conveying house steward is equipped with first pressure transmitter, electric butterfly valve, check valve and second pressure transmitter from material delivery branch pipe towards the position between the ripple subassembly in proper order, the pneumatic conveying automatic pressure maintaining system still includes the control box, air-blower, first pressure transmitter, electric butterfly valve and second pressure transmitter all are connected to the control box, and this system can control the valve opening automatically, makes the accurate pressurize of air-blower exhaust pressure ability, guarantees that the air-blower can more stable, efficient operation in the pneumatic conveying technology, and meanwhile, the corrugated assembly is arranged, so that the effects of vibration reduction and noise reduction can be achieved.
Description
Technical Field
The utility model belongs to the air conveying field especially relates to an automatic pressurize system of air conveying.
Background
At present, a blower commonly used in a pneumatic conveying process is a roots blower, but the roots blower has high noise and low efficiency, the centrifugal blower with low noise and high efficiency has the characteristics (surge) of a turbine blower, the blower is damaged or automatically stopped due to surge caused by low or no back pressure, although the surge can be avoided by adding a valve to suppress the pressure, the opening of the valve can be judged and adjusted only by the experience of an operator, the real-time, accurate and systematic adjustment cannot be realized, the phenomenon of too much or too little suppressing pressure is easily generated under the condition of fluctuation of working conditions, the overload or surge protection of the blower is caused, the blower is automatically stopped, and the normal production of the process is influenced; meanwhile, the manual adjustment of the valve can increase the labor cost and is free from the original purpose of modification. In addition, the pipeline can vibrate and produce the noise in the air-blower working process, causes the influence to the staff easily.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, an object of the utility model is to provide an automatic pressurize system of pneumatic transport aims at solving among the current system valve and needs manual regulation, and the technical problem of air-blower during operation pipeline vibration production noise.
The utility model adopts the following technical scheme:
the automatic pressurize system of pneumatic transmission includes air-blower and rather than the pneumatic transmission house steward that is connected, the last and be close to air-blower hookup location of pneumatic transmission house steward is equipped with one section ripple subassembly, still be connected with the material conveying branch pipe on the pneumatic transmission house steward, the pneumatic transmission house steward is equipped with first pressure transmitter, electric butterfly valve, check valve and second pressure transmitter from material conveying branch pipe towards the position between the ripple subassembly in proper order, the automatic pressurize system of pneumatic transmission still includes the control box, air-blower, first pressure transmitter, electric butterfly valve and second pressure transmitter all are connected to the control box.
Furthermore, the corrugated assembly comprises a corrugated pipe, flange plates are arranged at the upper end and the lower end of the corrugated pipe, and the flange plates at the upper end and the lower end of the corrugated pipe are connected with a pneumatic conveying main pipe flange.
Furthermore, a plurality of groups of limiting structures are symmetrically arranged between the flange plates at the upper end and the lower end of the corrugated pipe and positioned on the outer side of the corrugated pipe, each limiting structure comprises universal blocks fixed on the flange plates at the upper end and the lower end, universal rods are embedded in the universal blocks at the upper end and the lower end, a limiting groove is formed in each universal rod at one end, a clamping block is outwards arranged on the side wall of each universal rod at the other end, and the clamping blocks are embedded in the limiting grooves.
Furthermore, the corrugated pipe is made of metal.
Further, the control box includes PLC and thing networking gateway module, air-blower, first pressure transmitter, electric butterfly valve and second pressure transmitter all are connected to PLC.
The utility model has the advantages that: the utility model provides an automatic pressure maintaining system for pneumatic conveying, which can automatically control the opening of a valve, so that the exhaust pressure of an air blower can be maintained accurately, and the air blower can be ensured to run more stably and efficiently in the pneumatic conveying process; the gateway module of the internet of things in the system can remotely monitor, record and analyze the running state of the air blower, and can remotely set the parameters of the air blower and the opening of the electric butterfly valve, thereby early warning and protecting in advance and ensuring the stable and reliable running of the air blower; be provided with limit structure in the bellows periphery, can carry on spacingly to the deformation displacement of bellows, effectively protect the bellows, guaranteed the good leakproofness of pipeline.
Drawings
Fig. 1 is a structural diagram of an automatic pneumatic conveying pressure maintaining system according to an embodiment of the present invention;
fig. 2 is a structural diagram of a bellows assembly provided in an embodiment of the present invention;
fig. 3 is a structural diagram of a universal bar according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical solution of the present invention, the following description is made by using specific examples.
Fig. 1 shows a structure of an automatic pneumatic conveying pressure maintaining system according to an embodiment of the present invention, and only parts related to the embodiment of the present invention are shown for convenience of description.
As shown in fig. 1, the automatic pressurize system of pneumatic transmission that this embodiment provided includes air-blower 1 and rather than the pneumatic transmission house steward 2 who is connected, pneumatic transmission house steward 2 is last and be close to air-blower 1 hookup location and be equipped with one section ripple subassembly 3, still be connected with material conveying branch pipe 4 on the pneumatic transmission house steward 2, pneumatic transmission house steward 2 is equipped with first pressure transmitter 5, electric butterfly valve 6, check valve 7 and second pressure transmitter 8 from material conveying branch pipe 4 towards the position between ripple subassembly 3 in proper order, the automatic pressurize system of pneumatic transmission still includes the control box, air-blower 1, first pressure transmitter 5, electric butterfly valve 6 and second pressure transmitter 8 all are connected to the control box. Wherein, the check valve is used for preventing gas from flowing backwards; the first pressure transmitter is used for measuring the back pressure of the blower; the second pressure transmitter is used for measuring the exhaust pressure of the blower.
More specifically, the control box includes PLC and thing networking gateway module, air-blower, first pressure transmitter, electric butterfly valve and second pressure transmitter all are connected to PLC. The PLC is a Siemens S7-200SMART series PLC and is communicated with the blower in a RS485 connection mode.
In this embodiment, the opening of the electric butterfly valve is intelligently controlled by the PLC, and finding a certain opening enables the exhaust pressure of the blower to be not less than the minimum exhaust pressure of the blower, which is called the pressure maintaining opening. In the actual operation of the blower, the back pressure of the blower, namely the feedback value of the first pressure transmitter, is acquired in real time through the PLC, if the back pressure is smaller than the minimum exhaust pressure of the blower, the electric butterfly valve is controlled to be in a pressure maintaining opening degree, the blower is enabled to operate at the allowed minimum exhaust pressure, and if the back pressure is larger than the minimum exhaust pressure of the blower, the electric butterfly valve is controlled to be fully opened, and the blower is enabled to operate at a normal working condition.
In addition, the system considers that the altitude and the temperature change in winter and summer can influence the exhaust pressure of the air blower due to local conditions, the system can intelligently identify the exhaust pressure and the minimum pressure of the air blower, if the exhaust pressure is smaller than the minimum pressure of the air blower, the system can automatically adjust the electric butterfly valve to find a new pressure maintaining opening and store the opening value, and the stable operation of the air blower is ensured.
The internet of things gateway module can carry out remote monitoring and record analysis to the running state of air-blower, still can set up the parameter of air-blower and electric butterfly valve's aperture in a long-range way simultaneously, can accomplish early warning protection in advance to guarantee the reliable and stable operation of air-blower.
As a preferred structure, as shown in fig. 2, the bellows assembly 3 includes a bellows 10, flanges 11 are disposed at upper and lower ends of the bellows 10, and the flanges 11 at the upper and lower ends of the bellows are flange-connected to the pneumatic conveying main pipe 2. The corrugated assembly is arranged at the position close to the connection position of the blower and the pneumatic conveying main pipe, so that the effects of vibration reduction and noise reduction can be achieved, good sealing performance is provided, and the service life is long.
Wherein, between the ring flange 11 at bellows upper and lower both ends and be located bellows 10 outside symmetry and be equipped with a plurality of groups limit structure, limit structure is including being fixed in universal block 12 on the ring flange 11 at upper and lower both ends, all imbeds in the universal block 12 at upper and lower both ends and installs universal rod 13, wherein division groove 14 is seted up in the universal rod 13 of one end, and the universal rod 13 lateral wall of the other end outwards is equipped with fixture block 15, fixture block 15 imbeds in the limit groove 14, as shown in fig. 3. In the air-blower working process, the bellows can take place deformation and produce the displacement, can appear the phenomenon of rupture when the bellows produces the displacement too big, and set up limit structure and can carry on spacingly to the deformation displacement of bellows, effectively protect the bellows, guaranteed the good leakproofness of pipeline.
The corrugated pipe 10 is made of metal and has the characteristics of good flexibility, light weight, corrosion resistance, fatigue resistance, high and low temperature resistance and the like.
When the system works, firstly, the air blower is started, the valve self-inspection is started, the integrity of equipment and communication is checked, then the system automatically adjusts the opening of the electric butterfly valve to determine the pressure maintaining opening value under the current condition, and the value is set and recorded in the PLC; restarting the air blower, observing whether the system can automatically control the electric butterfly valve and adjust the electric butterfly valve to the pressure maintaining opening degree under the condition of no back pressure, then setting a feedback value of the first pressure transmitter, simulating the condition of back pressure, and observing whether the system can automatically control the electric butterfly valve to be fully opened or not when the back pressure is greater than the minimum exhaust pressure of the air blower; if the operations are normal, the system can be normally applied to the use of the blower in the pneumatic conveying process.
To sum up, the utility model provides an automatic pressure maintaining system for pneumatic conveying, which can automatically control the opening of a valve, so that the exhaust pressure of an air blower can be maintained accurately, and the air blower can be ensured to run more stably and efficiently in the pneumatic conveying process; the gateway module of the internet of things in the system can remotely monitor, record and analyze the running state of the air blower, and can remotely set the parameters of the air blower and the opening of the electric butterfly valve, thereby early warning and protecting in advance and ensuring the stable and reliable running of the air blower; be provided with limit structure in the bellows periphery, can carry on spacingly to the deformation displacement of bellows, effectively protect the bellows, guaranteed the good leakproofness of pipeline.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (5)
1. The utility model provides an automatic pressurize system of pneumatic transport, its characterized in that, includes the air-blower and rather than the pneumatic transport house steward that is connected, the last and be close to air-blower hookup location of pneumatic transport house steward is equipped with one section ripple subassembly, the last material conveying branch pipe that still is connected with of pneumatic transport house steward, the pneumatic transport house steward is equipped with first pressure transmitter, electric butterfly valve, check valve and second pressure transmitter from material conveying branch pipe in proper order towards the position between the ripple subassembly, the automatic pressurize system of pneumatic transport still includes the control box, air-blower, first pressure transmitter, electric butterfly valve and second pressure transmitter all are connected to the control box.
2. The automatic pressure maintaining system for pneumatic transmission of claim 1, wherein the bellows assembly comprises a bellows, flanges are disposed at the upper and lower ends of the bellows, and the flanges at the upper and lower ends of the bellows are connected to the pneumatic transmission manifold via flanges.
3. The automatic pressure maintaining system for pneumatic conveying of claim 2, wherein a plurality of sets of limiting structures are symmetrically disposed between the flanges at the upper and lower ends of the bellows and outside the bellows, the limiting structures include universal blocks fixed to the flanges at the upper and lower ends, and universal rods are embedded in the universal blocks at the upper and lower ends, wherein a limiting groove is formed in the universal rod at one end, and a retaining block is outwardly disposed on the side wall of the universal rod at the other end, and the retaining block is embedded in the limiting groove.
4. The pneumatic conveying automatic pressure maintaining system of claim 3, wherein the bellows is made of metal.
5. The pneumatic conveying automatic pressure maintaining system according to claim 4, wherein the control box comprises a PLC and an Internet of things gateway module, and the Internet of things gateway module, the blower, the first pressure transmitter, the electric butterfly valve and the second pressure transmitter are all connected to the PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022874881.3U CN214059207U (en) | 2020-12-04 | 2020-12-04 | Automatic pressure maintaining system for pneumatic conveying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022874881.3U CN214059207U (en) | 2020-12-04 | 2020-12-04 | Automatic pressure maintaining system for pneumatic conveying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214059207U true CN214059207U (en) | 2021-08-27 |
Family
ID=77405659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022874881.3U Active CN214059207U (en) | 2020-12-04 | 2020-12-04 | Automatic pressure maintaining system for pneumatic conveying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214059207U (en) |
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2020
- 2020-12-04 CN CN202022874881.3U patent/CN214059207U/en active Active
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