CN217109147U - Air-entrapping parameter control device for dredging mud pipe - Google Patents
Air-entrapping parameter control device for dredging mud pipe Download PDFInfo
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- CN217109147U CN217109147U CN202220785212.5U CN202220785212U CN217109147U CN 217109147 U CN217109147 U CN 217109147U CN 202220785212 U CN202220785212 U CN 202220785212U CN 217109147 U CN217109147 U CN 217109147U
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Abstract
The utility model discloses an air entrainment parameter control device for dredging sludge pipe, dredging sludge pipe includes a pipeline body, and the device includes: the inlet of the pressure regulating valve is connected with the air supply equipment through an air cannon pipe; the inlet of the gas meter is connected with the outlet of the pressure regulating valve, and the outlet of the gas meter is connected with a gas filling port arranged right above the outer wall surface of the pipeline body; and a back pressure delivery mechanism, comprising: a closed container; a movable piston disposed in the hermetic container; an air outlet, and an inlet. The utility model discloses the problem that can't carry out the quantitative control air entrainment to air entrainment conveyor among the prior art has been solved effectively.
Description
Technical Field
The utility model relates to a dredge hydraulic reclamation engineering technical field, concretely relates to air entrainment parameter control device for dredging mud pipe.
Background
In river, lake and reservoir dredging engineering, due to site limitation, a treatment area (or a hydraulic filling area) is often far away from a dredging area, and the problem of insufficient discharge distance is usually caused. However, the traditional manner of extending the row spacing of the relay pump station has the defects of high requirement on installation site and high use and maintenance cost, so an auxiliary conveying technology which is simple to operate, convenient to install, low in use and maintenance cost, environment-friendly and suitable for long-row spacing conveying is urgently needed. At present, many researches prove that high-pressure air is injected into the pipeline in the sediment conveying process from the theoretical mechanism and the test level, so that the effects of increasing the conveying pressure, reducing the conveying resistance and increasing the conveying row spacing can be achieved. But the relevant target can be realized only by determining parameters such as proper air-entrapping pressure and the like according to the conveying condition of the dredging site.
Through retrieval, the Chinese patent document CN 109029912B discloses a test device for researching gas-filling transportation of a slurry pipeline; chinese patent document CN 106697953B relates to an air-entrapping transportation device for a sludge discharge pipeline in a dredging construction site. However, the existing air-entrapping conveying equipment does not relate to quantitative control of air-entrapping parameters such as air-entrapping pressure and air-entrapping amount, and the air-entrapping parameters such as air-entrapping pressure and air-entrapping amount cannot be correspondingly adjusted according to pressure change in a sludge discharge pipe on site, so that a better air-entrapping effect is realized, and popularization and application of an air-entrapping auxiliary conveying technology in a dredging construction site are restricted.
Therefore, aiming at the defect that the air-entrapping can not be quantitatively controlled in the existing air-entrapping conveying device, the air-entrapping parameter control device is suitable for site construction of the dredging engineering, can quantitatively control the air-entrapping pressure and the air-entrapping amount according to the pressure change in the dredging sludge discharge pipe, is simple to operate, has low use and maintenance cost, and has very important significance for promoting the popularization and application of an air-entrapping auxiliary conveying technology in the site of the dredging engineering and promoting the fine construction of dredging operation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's defect and provide an air entrainment parameter control device for dredging mud pipe, it can be according to dredging mud pipe internal pressure variation quantification control air entrainment pressure and air entrainment volume.
A air entrainment parameter control device for dredging sludge pipe, dredging sludge pipe includes a pipeline body, the device includes:
the inlet of the pressure regulating valve is connected with the air supply equipment through an air cannon pipe;
the inlet of the gas meter is connected with the outlet of the pressure regulating valve, and the outlet of the gas meter is connected with a gas filling port arranged right above the outer wall surface of the pipeline body; and
a backpressure delivery mechanism, comprising:
a closed container;
the movable piston is arranged in the closed container and divides the inner cavity of the closed container into a sealed air chamber which is positioned at the upper part and is filled with sealed air and a sealed water chamber which is positioned at the lower part and is filled with sealed water;
the air outlet comprises an air outlet short joint communicated with the sealed air chamber and an air outlet stop valve arranged on the air outlet short joint, and the air outlet stop valve is connected with the back pressure port of the pressure regulating valve; and
the water inlet comprises a short inlet joint communicated with the sealed water chamber and an inlet stop valve arranged on the short inlet joint, and the inlet stop valve is connected with a return port arranged right in front of the outer wall surface of the pipeline body;
wherein the flow return port is located upstream of the gas addition port in the conveying direction of the slurry in the dredging sludge discharge pipe.
In the above gas filling parameter control device for a dredging sludge pipe, the pressure regulating valve comprises:
the left side and the right side of the pressure regulating chamber are respectively provided with an inlet and an outlet, and the bottom surface of the pressure regulating chamber is provided with a back pressure port;
a control knob mounted above the pressure regulating chamber;
a bottom membrane mounted at the back pressure port; and
the upper end of the valve rod component is connected with the control knob through an upper spring, and the lower end of the valve rod component is connected with the bottom membrane through a lower spring;
when the pressure regulating valve is in an initial state, the protrusion structure is in contact with the valve rod assembly so that an inlet and an outlet of the pressure regulating chamber are not communicated.
In the above gas filling parameter control device for a dredging sludge pipe, the pressure regulating valve further comprises: and the dial is arranged outside the pressure regulating cavity and is connected with the valve rod assembly through an instrument scale executing mechanism.
In the gas filling parameter control device for the dredging sludge discharge pipe, an inlet of the pressure regulating valve is connected with the air cannon pipe through a reducing short joint, an outlet of the pressure regulating valve is connected with the gas meter through a first threaded short joint, and a back pressure port of the pressure regulating valve is connected with the back pressure transmission mechanism through a second threaded short joint.
In the above air-entrapping parameter control device for a dredging sludge pipe, the air-entrapping port includes an air-entrapping short joint communicated with the pipe body and an air-entrapping ball valve mounted on the air-entrapping short joint, wherein the air-entrapping ball valve is connected to an outlet of the air gauge through a small-caliber high-pressure air pipe.
In the gas filling parameter control device for the dredging sludge discharge pipe, the gas filling ball valve is connected with the small-caliber high-pressure gas pipe through a gas pipe joint.
In the above gas filling parameter control device for a dredging mud pipe, the backflow port includes a backflow short joint communicated with the pipe body and a backflow ball valve mounted on the backflow short joint, wherein the backflow ball valve is connected with the inflow port of the back pressure transmission mechanism through a backflow pipe.
In the above gas filling parameter control device for a dredging sludge pipe, the back pressure transmission mechanism further comprises a leg for supporting the closed container.
Based on the technical scheme, the utility model discloses an air-vent valve, backpressure transmission device and gas gauge set up not only real-time supervision high-pressure gas's tolerance, can also adjust air entrainment parameters such as air entrainment pressure and air entrainment volume simultaneously to need not to consider the change of dredging mud pipe pipeline body internal pressure, just can real time control dredge the air entrainment condition of carrying of job site mud pipe way. Additionally, the utility model is simple in operation, use the maintenance cost low, be applicable to the construction that becomes more meticulous of dredging the engineering scene, be favorable to promoting the gas entrainment and assist the popularization and application of transport technique at dredging the engineering scene.
Drawings
Fig. 1 is a schematic structural diagram of a gas filling parameter control device for a dredging sludge pipe of the present invention;
FIG. 2 is a schematic structural diagram of a pressure regulating valve in the air-entrapping parameter control device for a dredging and sludge-discharging pipe of the present invention;
FIG. 3 is a schematic view of the internal structure of a pressure regulating chamber of a pressure regulating valve in a gas filling parameter control device for a dredging and sludge discharging pipe;
FIG. 4 is a schematic structural view of a back pressure transmission mechanism in the air-entrapping parameter control device for a dredging sludge pipe of the present invention;
fig. 5 is a schematic structural diagram of a dredging sludge discharge pipe in the gas filling parameter control device for the dredging sludge discharge pipe of the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
Referring to fig. 1 to 5, the present invention provides an air-entrapping parameter control device for a dredging pipe, wherein the dredging pipe includes a pipe body 4, and the air-entrapping parameter control device includes:
the inlet of the pressure regulating valve 1 is externally connected with air supply equipment through an air gun tube 5; in the present embodiment, the pressure regulating valve 1 includes: the pressure regulating cavity 11 with a special-shaped structure is provided with an inlet and an outlet on the left and the right sides respectively, and the bottom surface is provided with a back pressure port; a control knob 12 installed above the pressure-adjusting chamber 11; a bottom film 13 installed at the back pressure port; a stem assembly 112 disposed in the pressure-adjusting chamber 11, the upper end of which is connected to the control knob 12 through an upper spring 111, and the lower end of which is connected to the bottom membrane 13 through a lower spring 113; and a dial 14 mounted outside the pressure-regulating chamber 11 and connected to the valve stem assembly 112 through an instrument scale actuator; wherein, the pressure regulating chamber 11 is provided with a projection structure 15, when the pressure regulating valve 11 is in an initial state, the projection structure 15 is contacted with the valve rod assembly 112 so as to make the inlet and the outlet of the pressure regulating chamber 11 not communicated;
an inlet of the gas meter 2 is connected with an outlet of the pressure regulating valve 1, and an outlet of the gas meter 2 is connected with a gas filling port arranged right above the outer wall surface of the pipeline body 4; in this embodiment, the gas filling port includes a gas filling short joint 41 communicated with the pipeline body 4 and a gas filling ball valve 42 installed on the gas filling short joint 41, wherein the gas filling ball valve 42 is connected with one end of the small-caliber high-pressure gas pipe 6 through a gas pipe joint 43, the other end of the small-caliber high-pressure gas pipe 6 is connected with an outlet of the gas meter 2, in addition, the gas meter 2 can adopt a vortex flowmeter and adopt 24V power supply, and the measurement range is 0-45m 3/h; and
a back pressure delivery mechanism 3, comprising:
a closed container 31;
a movable piston 312 disposed in the hermetic container 31 and dividing the inner cavity of the hermetic container 31 into a sealed air chamber 311 filled with a sealing gas at the upper portion and a sealed water chamber 313 filled with a sealing water at the lower portion;
an air outlet, which comprises an air outlet short joint 32 communicated with the sealed air chamber 311 and an air outlet stop valve 33 arranged on the air outlet short joint 32, wherein the air outlet stop valve 33 is connected with the back pressure port of the pressure regulating valve 1;
an inlet, which comprises an inlet short joint 34 communicated with the sealed water chamber 313 and an inlet stop valve 35 mounted on the inlet short joint 34, wherein the inlet stop valve 35 is connected with a return port mounted right in front of the outer wall surface of the pipeline body 4; in this embodiment, the return port is located upstream of the gas charging port in the conveying direction of the slurry in the dredging and mud-discharging pipe, and comprises a return short joint 44 communicated with the pipeline body 4 and a return ball valve 45 mounted on the return short joint 44, wherein the return ball valve 45 is connected with the inlet of the back pressure transmission mechanism 3 through a return pipe 7; and
a leg 36 for supporting the hermetic container 31.
In addition, in the present embodiment:
the inlet of the pressure regulating valve 1 is connected with the air gun pipe 5 through a reducing short joint 8, the outlet thereof is connected with the gas meter 2 through a first threaded short joint 9, and the back pressure port thereof is connected with the back pressure transmission mechanism 3 through a second threaded short joint 10.
The pipeline body 4 is a steel pipeline, the pipe diameter of the steel pipeline is DN300-DN400, and the length of the steel pipeline is 9 m.
The principle of the utility model is as follows:
firstly, the pressure regulating valve 1, the gas meter 2, the backpressure transmission mechanism 3 and the dredging and sludge discharging pipe pipeline body 4 are installed and connected one by one.
Secondly, high-pressure gas is conveyed to an inlet of the pressure regulating valve 1 through the blast gun pipe 5 by the gas supply device, the high-pressure gas enables the valve rod assembly 112 to be pressed upwards to be balanced in the pressure regulating valve 1 due to overlarge air pressure, so that a passage is formed, and the lower spring 113 is in a stretching state; if the pressure needs to be adjusted, the control knob 12 is screwed down, so that the valve rod assembly 112 is pressed to move downwards, when the pressure is neutralized and balanced again, the passage is reduced, the air pressure and the air volume at the air outlet of the pressure adjusting valve 1 are reduced, and the lower spring 113 is still in a stretching state.
Then, in the process of conveying the slurry by the dredging sludge discharge pipe, as a part of the conveyed slurry flows to the sealed water chamber 313 of the backpressure transmission mechanism 3 from the backflow pipe 7 under the pressure of the sludge discharge pipe pipeline body 4, and then the movable piston 312 moves upwards in balance to compress the sealed gas in the sealed gas chamber 311, the bottom membrane 13 at the bottom of the pressure regulating valve 1 generates pressure, and finally the pressure inside the sludge discharge pipe pipeline body 4 is transmitted to the pressure regulating valve 1 in a backpressure mode;
finally, when the pressure regulating valve 1 is subjected to backpressure, the lower spring 113 is subjected to upward pressure to reduce the original tensile deformation, so that the passage becomes smaller, at the moment, the outlet air pressure of the pressure regulating valve 1 is the difference between the inlet input air pressure of the pressure regulating valve 1 and the air pressure and backpressure regulated by the control knob 12, the difference value can be read out on the calibrated dial 14, and if no pressure is regulated, the outlet air pressure of the pressure regulating valve 1 is always the difference between the high-pressure gas input air pressure and the internal pressure of the mud pipe pipeline body 4; the gas quantity of the high-pressure gas output after pressure regulation is monitored by the gas meter 2 and then is conveyed to the sludge discharge pipe pipeline body 4 through the small-caliber high-pressure gas pipe 6, so that the change of the internal pressure of the sludge discharge pipe pipeline body 4 is not needed to be considered, and the direct control and regulation of gas filling parameters such as gas filling pressure and gas filling quantity are realized.
To sum up, the utility model discloses a but the tolerance of air-vent valve, backpressure transmission device and gas gauge set up real-time supervision high-pressure gas not only, can also adjust air entrainment parameters such as air entrainment pressure and air entrainment volume simultaneously, can need not to consider the change of dredging mud pipe pipeline body internal pressure in the middle of this to the air entrainment transport condition of job site mud pipe is dredged in real time control, has solved among the prior art and can't carry out the problem of quantitative control air entrainment to air entrainment conveyor, in addition, the utility model discloses still have easy operation, use advantage such as maintenance cost low.
The above embodiments are provided only for the purpose of illustration, not for the limitation of the present invention, and those skilled in the relevant art can make various changes or modifications without departing from the spirit and scope of the present invention, therefore, all equivalent technical solutions should also belong to the scope of the present invention, and should be defined by the claims.
Claims (8)
1. An air entrainment parameter control device for a dredging pipe, the dredging pipe comprising a pipe body, the device comprising:
the inlet of the pressure regulating valve is connected with an air supply device through an air cannon pipe;
the inlet of the gas meter is connected with the outlet of the pressure regulating valve, and the outlet of the gas meter is connected with a gas filling port arranged right above the outer wall surface of the pipeline body; and
a backpressure delivery mechanism, comprising:
a closed container;
the movable piston is arranged in the closed container and divides the inner cavity of the closed container into a sealed air chamber which is positioned at the upper part and is filled with sealed air and a sealed water chamber which is positioned at the lower part and is filled with sealed water;
the air outlet comprises an air outlet short joint communicated with the sealed air chamber and an air outlet stop valve arranged on the air outlet short joint, and the air outlet stop valve is connected with the back pressure port of the pressure regulating valve; and
the water inlet comprises a short inlet joint communicated with the sealed water chamber and an inlet stop valve arranged on the short inlet joint, and the inlet stop valve is connected with a return port arranged right in front of the outer wall surface of the pipeline body;
wherein the flow return port is located upstream of the gas addition port in the conveying direction of the slurry in the dredging sludge discharge pipe.
2. The air entrainment parameter control device for a dredging sludge pipe of claim 1, wherein the pressure regulating valve comprises:
the left side and the right side of the pressure regulating chamber are respectively provided with an inlet and an outlet, and the bottom surface of the pressure regulating chamber is provided with a back pressure port;
a control knob mounted above the pressure regulating chamber;
a bottom membrane mounted at the back pressure port; and
the upper end of the valve rod component is connected with the control knob through an upper spring, and the lower end of the valve rod component is connected with the bottom membrane through a lower spring;
when the pressure regulating valve is in an initial state, the protrusion structure is in contact with the valve rod assembly so that an inlet and an outlet of the pressure regulating chamber are not communicated.
3. The air entrainment parameter control device for a dredging sludge pipe of claim 2, wherein the pressure regulating valve further comprises: and the dial is arranged outside the pressure regulating cavity and is connected with the valve rod assembly through an instrument scale executing mechanism.
4. The air entrainment parameter control device for a dredging sludge pipe of claim 1, wherein the inlet of the pressure regulating valve is connected with the air cannon pipe through a reducer nipple, the outlet thereof is connected with the air gauge through a first threaded nipple, and the back pressure port thereof is connected with the back pressure transmission mechanism through a second threaded nipple.
5. The aeration parameter control device for a dredging sludge pipe according to claim 1, wherein the aeration port comprises an aeration short joint communicated with the pipe body and an aeration ball valve mounted on the aeration short joint, wherein the aeration ball valve is connected with the outlet of the gas meter through a small-caliber high-pressure gas pipe.
6. The air entrainment parameter control device for a dredging sludge pipe of claim 5, wherein the air entrainment ball valve is connected with the small-caliber high-pressure air pipe through an air pipe joint.
7. The gas entrainment parameter control device for a dredging sludge pipe of claim 1, wherein the backflow port comprises a backflow short joint communicated with the pipe body and a backflow ball valve mounted on the backflow short joint, wherein the backflow ball valve is connected with the inflow port of the back pressure transmission mechanism through a backflow pipe.
8. The aeration parameter control device for a dredging sludge pipe according to claim 1, wherein the back pressure transmission mechanism further comprises a leg for supporting the closed vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220785212.5U CN217109147U (en) | 2022-03-30 | 2022-03-30 | Air-entrapping parameter control device for dredging mud pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220785212.5U CN217109147U (en) | 2022-03-30 | 2022-03-30 | Air-entrapping parameter control device for dredging mud pipe |
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| CN217109147U true CN217109147U (en) | 2022-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220785212.5U Active CN217109147U (en) | 2022-03-30 | 2022-03-30 | Air-entrapping parameter control device for dredging mud pipe |
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| CN (1) | CN217109147U (en) |
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- 2022-03-30 CN CN202220785212.5U patent/CN217109147U/en active Active
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