CN212223888U - Grouting core pipe with pressure relief function - Google Patents
Grouting core pipe with pressure relief function Download PDFInfo
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- CN212223888U CN212223888U CN202020152361.9U CN202020152361U CN212223888U CN 212223888 U CN212223888 U CN 212223888U CN 202020152361 U CN202020152361 U CN 202020152361U CN 212223888 U CN212223888 U CN 212223888U
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Abstract
The utility model aims to overcome the easy defect that is damaged by the too big thick liquid of pressure of sleeve valve pipe among the current sleeve valve slip casting system, provide a slip casting core pipe with pressure release function, seted up out the thick liquid mouth on the core pipe wall, be close to core nose portion department and be equipped with bowl formula rubber sleeve, its main points lie in, the core pipe lower extreme has the relief valve. The grouting core pipe is sleeved in the sleeve valve pipe, and the outer ring of the bowl-type rubber sleeve is in close contact with the inner surface of the sleeve valve pipe. The utility model discloses lower extreme at slip casting core pipe sets up the relief valve, when the core intraductal pressure is too big, opens the relief valve and derives the thick liquid, reduces the thick liquid pressure in the core, avoids high-pressure thick liquid directly to spout the department and damages sleeve valve pipe.
Description
Technical Field
The utility model belongs to the hydraulic engineering field, concretely relates to slip casting core pipe with pressure release function.
Background
At present, in the sleeve valve pipe grouting process, as shown in fig. 1, the lower end of a core pipe 1 inside a sleeve valve pipe is mostly sealed by a plug 10, the sleeve valve pipe is made of a PVC material, the maximum pressure capable of bearing is only 3MPa, and the lower end of the core pipe inside the sleeve valve pipe is sealed, so that the pressure of slurry inside the core pipe is too high during grouting, and the sleeve valve pipe is damaged after the slurry is sprayed out. Therefore, how to avoid the sleeve valve pipe from being damaged by the over-pressure grout is an urgent problem to be solved.
Disclosure of Invention
The utility model aims to overcome the sleeve valve pipe among the current sleeve valve slip casting system defect that the easy too big thick liquid of pressure of sleeve valve pipe damaged, provide a slip casting core pipe that has a pressure release function that can reduce thick liquid pressure and use sleeve valve pipe slip casting system of this core pipe.
The utility model discloses the technical scheme who adopts is a slip casting core pipe with pressure release function, has seted up out the thick liquid mouth on the core pipe wall, is close to core pipe tip department and is equipped with bowl formula rubber sleeve, and its main points lie in, the core pipe lower extreme has the relief valve.
The utility model discloses lower extreme at slip casting core pipe sets up the relief valve, when the core intraductal pressure is too big, opens the relief valve and derives the thick liquid, reduces the thick liquid pressure in the core, avoids high-pressure thick liquid directly to spout the department and damages sleeve valve pipe.
The pressure relief valve is an electromagnetic valve and comprises a body, an electromagnetic driving device, a valve core, a valve seat and a pressure relief channel, wherein the valve seat is provided with a channel serving as a part of the pressure relief channel, the inlet end of the pressure relief channel is connected with a core pipe, the valve seat, the valve core and the electromagnetic driving device are sequentially arranged from the inlet end to the outlet end of the pressure relief channel, the valve core opens or blocks a valve of the valve seat under the electromagnetic force action of the electromagnetic driving device, a pressure sensor is arranged in the core pipe, and the pressure relief valve and the pressure.
The electromagnetic valve is used as a pressure release valve, the pressure sensor detects the pressure of the slurry in the core pipe and transmits the pressure to the controller, and the controller controls the on-off of the pressure release valve, so that the pressure in the core pipe is automatically released.
The pressure relief valve comprises a body, a valve core, a spring, a valve seat and a pressure relief channel, wherein the valve seat is provided with a channel serving as a part of the pressure relief channel, the inlet end of the pressure relief channel is connected with a core pipe, the valve seat, the valve core and the spring are sequentially arranged from the inlet end to the outlet end of the pressure relief channel, and the valve core opens or blocks the valve of the valve seat under the action of the elastic force of the spring.
The spring type pressure release valve does not need a sensor and other matched electrical structures, can control the upper limit of the slurry pressure in the core pipe by means of the elastic force of the spring, and automatically opens the valve to release the pressure when the slurry pressure in the core pipe reaches the upper limit.
A sleeve valve pipe grouting system comprises any one grouting core pipe with a pressure relief function, the grouting core pipe is sleeved in a sleeve valve pipe, and the outer ring of the bowl-type rubber sleeve is in close contact with the inner surface of the sleeve valve pipe.
Be equipped with out the thick liquid mouth between the bowl formula rubber sleeve and arrange the thick liquid to sleeve valve intraductal, the utility model discloses set up the relief valve at the core pipe lower extreme, to the lower extreme pressure release of core pipe when thick liquid pressure is too big, reduce the thick liquid pressure of grout mouth department, protect sleeve valve pipe.
Drawings
FIG. 1 is a schematic view of a conventional core tube
FIG. 2 is a schematic view of a core tube according to embodiment 1 of the present invention
FIG. 3 is a schematic view of a sleeve valve pipe grouting system
FIG. 4 is a sectional view of the pressure release valve in embodiment 1
FIG. 5 is a schematic view of a core tube according to example 2
Wherein: the device comprises a core pipe 1, a grout outlet 11, a bowl-type rubber sleeve 12, a control line 13, a sleeve valve pipe 2, a pressure release valve 3, a body 31, a valve seat 32, a seat body 321, a conical plugging port 322, a conical rubber ring 3221, a silica gel liquid bag ring 3222, a water through hole 323, a valve core 33, a cylindrical part 331, a conical part 332, an electromagnetic driving device 34, an installation seat 341, an electromagnetic coil 342, a pressure release channel 35, a valve core positioning device 36, a positioning ring 361, a positioning pin 362 and a spring 37.
Detailed Description
The embodiments illustrated herein will enable those skilled in the art to more fully understand the present invention, without limiting it in any way, when the present invention is described in detail below with reference to the accompanying drawings.
A pressure relief valve 3 is fixed at the lower end of the core tube 1, and a valve seat 32, a valve core 33, an electromagnetic driving device 34 and a pressure relief channel 35 are arranged in a body 31 of the pressure relief valve 3. Specifically, the valve seat 32 includes a seat 321 and a self-adaptive conical plug 322, the peripheral side of which is fixed on the inner wall of the tubular body 31, a water through hole 323 is arranged in the middle of the seat 321, an annular receiving groove is arranged on one side of the seat 321 opposite to the inlet a, the self-adaptive conical plug 322 is composed of a conical rubber ring 3221 and a silicone fluid bag 3222, the silicone fluid bag 3222 is installed in the annular receiving groove, the conical rubber ring 3221 is fixed on the inner side of the silicone fluid bag 3222, a conical hole 3223 is formed on the inner side of the conical rubber ring 3221, and the conical hole 3223 is communicated with the water through hole 323 to form a pressure release channel 35. The valve core 33 comprises a cylindrical part 331 and a conical part 332 corresponding to the conical hole 3223, the valve core positioning device 36 comprises a positioning ring 361 and at least one positioning pin 362 connecting the positioning ring 361 and the inner wall of the body 31, the positioning ring 361 is sleeved outside the valve core 33, and the valve core can slide in the positioning ring 361. The electromagnetic driving device 34 includes an installation seat 341 fixed inside the body 31 and an electromagnetic coil 342 through which current flows, a sealed installation cavity is provided in the middle of the installation seat 341, the electromagnetic coil 342 through which current flows is located in the installation cavity, and the valve core 33 corresponds to the electromagnetic coil 342 through which current flows and has magnetic repulsion.
The inside of the core pipe 1 is also provided with a pressure sensor which is electrically connected with the controller and used for detecting the pressure of the slurry inside the core pipe 1 and transmitting the pressure to the controller. The controller is electrically connected with the electromagnetic coil 342 through the control line 13, and controls the electromagnetic coil 342 to be electrified and deenergized.
The rest parts which are not described in the prior art.
And (3) pressure relief process: the slurry is injected into the core pipe from the upper part of the core pipe 1 and is sprayed to the sleeve valve pipe 2 through a slurry outlet 11 on the pipe wall of the core pipe 1. When the pressure sensor detects that the pressure of the slurry is greater than 3MPa, the controller controls the electromagnetic coil 342 to be powered off, the magnetic repulsion relation between the valve core 33 and the electromagnetic coil 342 is disabled, and the high-pressure slurry can open the valve core 33 to overflow from the pressure relief channel 35 for pressure relief.
Embodiment 2, this embodiment is different from embodiment 1 in the principle of driving the spool of the relief valve 3, as shown in fig. 5, the spool 33 is supported at the inlet end of the relief valve by a spring 37, when the pressure in the core pipe 1 is greater than 3MPa, the slurry can open the elastic force of the spring to open the relief valve and overflow from the relief passage, thereby completing the relief.
Above embodiment only is for explaining the utility model discloses a technical thought can not be injectd with this the utility model discloses a protection scope, all according to the utility model provides a technical thought, any improvement of doing on technical scheme basis and equal replacement all fall into within the protection scope of the utility model.
Claims (3)
1. The utility model provides a slip casting core pipe with pressure release function, has seted up out the thick liquid mouth on the core pipe wall, is close to core pipe tip department and is equipped with bowl formula rubber sleeve, its characterized in that: and the lower end of the core pipe is provided with a pressure release valve.
2. The grouting core pipe with the pressure relief function according to claim 1, characterized in that: the pressure relief valve is an electromagnetic valve and comprises a body, an electromagnetic driving device, a valve core, a valve seat and a pressure relief channel, wherein the valve seat is provided with a channel serving as a part of the pressure relief channel, the inlet end of the pressure relief channel is connected with a core pipe, the valve seat, the valve core and the electromagnetic driving device are sequentially arranged from the inlet end to the outlet end of the pressure relief channel, the valve core opens or blocks a valve of the valve seat under the electromagnetic force action of the electromagnetic driving device, a pressure sensor is arranged in the core pipe, and the pressure relief valve and the pressure.
3. The grouting core pipe with the pressure relief function according to claim 1, characterized in that: the pressure relief valve comprises a body, a valve core, a spring, a valve seat and a pressure relief channel, wherein the valve seat is provided with a channel serving as a part of the pressure relief channel, the inlet end of the pressure relief channel is connected with a core pipe, the valve seat, the valve core and the spring are sequentially arranged from the inlet end to the outlet end of the pressure relief channel, and the valve core opens or blocks the valve of the valve seat under the action of the elastic force of the spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020152361.9U CN212223888U (en) | 2020-02-05 | 2020-02-05 | Grouting core pipe with pressure relief function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020152361.9U CN212223888U (en) | 2020-02-05 | 2020-02-05 | Grouting core pipe with pressure relief function |
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| Publication Number | Publication Date |
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| CN212223888U true CN212223888U (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020152361.9U Active CN212223888U (en) | 2020-02-05 | 2020-02-05 | Grouting core pipe with pressure relief function |
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| CN (1) | CN212223888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340710A (en) * | 2021-06-09 | 2021-09-03 | 三峡大学 | Magnetic self-polymerization slurry water shutoff shear resistance testing device and testing method |
-
2020
- 2020-02-05 CN CN202020152361.9U patent/CN212223888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113340710A (en) * | 2021-06-09 | 2021-09-03 | 三峡大学 | Magnetic self-polymerization slurry water shutoff shear resistance testing device and testing method |
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