CN-121977090-A - Multi-medium compatible high-pressure injection and cleaning valve control device

CN121977090ACN 121977090 ACN121977090 ACN 121977090ACN-121977090-A

Abstract

The invention provides a multi-medium compatible high-pressure injection and cleaning valve control device, which comprises a base and a valve rod assembly, wherein the base is provided with a flushing port and a plurality of liquid injection ports, the valve rod assembly comprises a valve rod body, a first end of the valve rod body is connected with the base, a flushing pipeline and a liquid injection pipeline are arranged in the valve rod body, the first end of the flushing pipeline is communicated with the flushing port, the first end of the liquid injection pipeline is communicated with the liquid injection port, the valve rod assembly further comprises a flushing valve core and a mixing valve core, the flushing valve core is arranged at a second end of the flushing pipeline, the mixing valve core is arranged in the valve rod body and can move relative to the valve rod body, and the mixing valve core has a blocking state and a mixing state. The multi-medium compatible high-pressure injection and cleaning valve control device has the advantage of good anti-adhesion effect.

Inventors

LIU YIJIE
JIANG PENGFEI
WANG ZIYUE
LUO CHAO
REN WANG
Wang Jiakuo
Ji Haoxuanye
WANG XINGXIAN
ZHANG RENBAO

Assignees

中煤科工开采研究院有限公司
中煤科工(天津)岩层智控科技有限公司
天地科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20251216

Claims (10)

1. A multi-media compatible high pressure injection and purge valve control device comprising: The base is provided with a flushing port and a plurality of liquid injection ports; the valve rod assembly comprises a valve rod body, a first end of the valve rod body is connected with the base, a flushing pipeline and a liquid injection pipeline are arranged in the valve rod body, a plurality of liquid injection pipelines are in one-to-one correspondence with a plurality of liquid injection ports, the first end of the flushing pipeline is communicated with the flushing ports, the first end of the liquid injection pipeline is communicated with the liquid injection ports, The valve rod assembly also comprises a flushing valve core and a mixing valve core, wherein the flushing valve core is arranged at the second end of the flushing pipeline so that flushing liquid sequentially passes through the flushing port, the flushing pipeline and the port of the second end of the liquid injection pipeline, the mixing valve core is arranged in the valve rod body and can move relative to the valve rod body, the mixing valve core has a blocking state and a mixing state, in the blocking state, the mixing valve core is used for blocking the liquid injection pipeline, in the mixing state, the mixing valve core is used for dredging the liquid injection pipeline and the liquid injection port so that liquid injected through the liquid injection port is mixed outside the port of the second end of the liquid injection pipeline, The valve rod body is including connecting segment and the mixed section that link to each other in proper order, the connecting segment is connected the base with between the mixed section, the valve rod subassembly still includes the control, the control is located the mixed section and with the mixed case links to each other, in order to be used for controlling the mixed case the shutoff state with the transition between the mixed state.
2. The multi-media compatible high pressure injection and purge valve control device of claim 1, wherein the centerline of the purge valve element coincides with the centerline of the valve stem body, the number of the control elements is two, the two control elements are symmetrically arranged with the centerline of the purge valve element, and the fluid injection lines are in one-to-one correspondence with the control elements.
3. The multi-media compatible high pressure injection and purge valve control device according to claim 2, wherein the control member comprises a control portion and an elastic portion, the mixing section is provided with a control chamber and a communication pipeline, the communication pipeline is communicated with the liquid injection port and the control chamber, the radial dimension of the control chamber is larger than the radial dimension of the liquid injection pipeline, the control portion is adapted to the control chamber and is connected with the first end of the mixing valve core, the first end of the elastic portion is abutted against the base, the second end of the elastic portion is abutted against the control portion, the liquid injection port is used for introducing an anchoring agent, the anchoring agent enters the control chamber through the communication pipeline and drives the control portion to move, so that the mixing valve core is converted from the blocking state to the mixing state.
4. A multi-media compatible high pressure injection and purge valve control device according to claim 3, wherein the ratio of the radial dimension of the mixing spool to the radial dimension of the control portion is less than or equal to 0.2.
5. The multi-media compatible high pressure injection and purge valve control device of claim 1, wherein the valve stem assembly further comprises a plugging ring that is nested within the second end of the mixing valve cartridge, the plugging ring being configured to plug a port of the second end of the injection line in the plugged state.
6. The multi-media compatible high pressure injection and purge valve control device of claim 1, wherein the cross-sectional area of the second end of the mixing valve element gradually decreases in a direction from the control element toward the mixing valve element.
7. The multi-media compatible high pressure injection and purge valve control device of claim 6, wherein the mixing section further has a mixing tank located on a side of the mixing section remote from the base, the mixing tank in communication with both the flushing line and the injection line.
8. The multi-media compatible high pressure injection and purge valve control device of claim 7, wherein the side walls of the mixing tank distal from the first end of the mixing valve cartridge and distal from the second end of the flush valve cartridge are arcuate surfaces.
9. The multi-media compatible high pressure injection and purge valve control device according to claim 8, wherein the purge spool comprises a plurality of purge outlets circumferentially spaced along a centerline of the purge spool.
10. The multi-media compatible high pressure injection and purge valve control device according to claim 9, wherein the valve stem assembly further comprises a blocking member comprising an elastic member and a blocking member, the mixing section having a blocking chamber in communication with the liquid injection line and located at the second end of the liquid injection line, the blocking chamber having a radial dimension greater than a radial dimension of the liquid injection line, the blocking member being disposed within the blocking chamber, the elastic member being located on a side of the blocking member adjacent the outlet of the liquid injection line, one end of the elastic member being in abutment with the blocking member.

Description

Multi-medium compatible high-pressure injection and cleaning valve control device Technical Field The invention relates to the technical field of mine roadway support equipment, in particular to a multi-medium compatible high-pressure injection and cleaning valve control device. Background With the rapid development of the fields of coal mines, metal mines and the like, anchor bolt support is widely used as an effective surrounding rock control technology. The anchor bolt support can effectively control the deformation of surrounding rock and ensure the safety production of mines through the steps of drilling holes in the surrounding rock of a coal roadway, installing anchoring agents and anchor bolts, pre-tightening the anchor bolts and the like. In the related art, the anchoring agent is used for filling the drill hole to form the solid supporting structure, wherein the anchoring agent mixed by multiple components can be quickly reacted and solidified after being mixed, and the anchoring agent is particularly important for occasions needing quick support, such as high-risk areas of coal mine roadways and the like. The multi-component anchoring agent is pressurized and conveyed after mixing, and is easy to block at the check valve, so that the check valve cannot be opened or closed after being blocked in a closed state, and further the mixed anchoring agent is caused to flow reversely, so that a relevant flow passage of the drilling box is blocked, and the construction efficiency is influenced. Disclosure of Invention The present invention aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the invention provides a multi-medium compatible high-pressure injection and cleaning valve control device, which has the advantage of good anti-adhesion effect. According to an embodiment of the invention, a multi-medium compatible high pressure injection and cleaning valve control device comprises: The base is provided with a flushing port and a plurality of liquid injection ports; The valve rod assembly comprises a valve rod body, a first end of the valve rod body is connected with the base, a flushing pipeline and a liquid injection pipeline are arranged in the valve rod body, the first end of the flushing pipeline is communicated with the flushing port, the first end of the liquid injection pipeline is communicated with the liquid injection port, The valve rod assembly also comprises a flushing valve core and a mixing valve core, the flushing valve core is arranged at the second end of the flushing pipeline so that flushing liquid can be sprayed to the port of the second end of the liquid injection pipeline through the flushing port, the flushing pipeline and the flushing valve core in sequence, the mixing valve core is arranged in the valve rod body and can move relative to the valve rod body, the mixing valve core has a blocking state and a mixing state, In the blocking state, the mixing valve core is used for blocking the liquid injection pipeline; In the mixing state, the mixing valve core is used for dredging the liquid injection pipeline and the liquid injection port so as to mix the liquid injected through the liquid injection port outside the port of the second end of the liquid injection pipeline, The valve rod body is including connecting segment and the mixed section that link to each other in proper order, the connecting segment is connected the base with between the mixed section, the valve rod subassembly still includes the control, the control is located the mixed section and with the mixed case links to each other, in order to be used for controlling the mixed case the shutoff state with the transition between the mixed state. The mixing valve core of the multi-medium compatible high-pressure injection and cleaning valve control device can effectively block the liquid injection pipeline in a blocking state, prevent the anchoring agent from being mixed and solidified in the pipeline in advance, and reduce the problem of pipeline blocking caused by the adhesion of the anchoring agent. The flushing valve core can guide flushing liquid to pass through the flushing port, the flushing pipeline and the flushing valve core in a flushing state and finally spray to the port of the second end of the liquid injection pipeline, so that residues in the pipeline are flushed, and the anchoring agent is prevented from flowing back and blocking the pipeline. In some embodiments, the center line of the flushing valve core coincides with the center line of the valve rod body, the number of the control pieces is two, the two control pieces are symmetrically arranged with the center line of the flushing valve core, and the liquid injection pipelines are in one-to-one correspondence with the control pieces. In some embodiments, the control member includes a control portion and an elastic portion, the connection section is provided with a control cavity and a