CN110735939B - Underground paste filling pipeline guaranteeing device and control method - Google Patents

Underground paste filling pipeline guaranteeing device and control method Download PDF

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Publication number
CN110735939B
CN110735939B CN201911138229.0A CN201911138229A CN110735939B CN 110735939 B CN110735939 B CN 110735939B CN 201911138229 A CN201911138229 A CN 201911138229A CN 110735939 B CN110735939 B CN 110735939B
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China
Prior art keywords
valve body
end cover
mandrel
cylinder barrel
pipeline
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CN201911138229.0A
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CN110735939A (en
Inventor
张心峰
刘刚
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XUZHOU CUMT BACKFILL TECHNOLOGY CO LTD
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XUZHOU CUMT BACKFILL TECHNOLOGY CO LTD
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Priority to CN201911138229.0A priority Critical patent/CN110735939B/en
Publication of CN110735939A publication Critical patent/CN110735939A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F15/00—Methods or devices for placing filling-up materials in underground workings
    • E21F15/08—Filling-up hydraulically or pneumatically
    • E21F15/10—Hydraulic or pneumatic filling-up machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/32—Means for additional adjustment of the rate of flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K41/00—Spindle sealings
    • F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
    • F16K41/04—Spindle sealings with stuffing-box ; Sealing rings with at least one ring of rubber or like material between spindle and housing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Loading And Unloading Of Fuel Tanks Or Ships (AREA)

Abstract

An underground paste filling pipeline guaranteeing device and a control method belong to paste filling devices and control methods. The upper valve and the lower valve of the device are correspondingly and fixedly connected to the main pipeline, and the upper valve and the lower valve are coaxially communicated; a lower mandrel is arranged in the lower valve body, the lower mandrel moves in the lower valve body, a sealing ring is connected to the side wall of the lower mandrel, and a valve body lower end cover is connected to the lower end part of the lower valve body through an adjusting ring; the upper end of the upper valve body is connected with an upper end cover of the valve body through an upper adjusting ring; a cylinder barrel is connected to the upper end cover of the valve body, a cylinder barrel end cover and an upper core shaft are sequentially connected in the cylinder barrel, and a rod is connected to the cylinder barrel end cover through a rod sealing end cover; the outer wall of the lower end of the cylinder barrel is connected with a core sleeve; the adjusting head is connected with the lower end of the upper mandrel; the upper end of the upper end cover of the valve body is connected with an anti-rotation support, and an anti-rotation block is arranged on the anti-rotation support. The advantages are that: simple structure, convenient disassembly and maintenance, safety and reliability. The leakage is avoided under the high-pressure working condition, the remote control of the site and the centralized control room is realized, and the site overhaul is convenient.

Description

Underground paste filling pipeline guaranteeing device and control method
Technical Field
The invention relates to a paste filling device and a control method, in particular to a guarantee device and a control method for an underground paste filling pipeline.
Background
In paste filling systems, the capacity of paste delivery pumps varies due to the influence of various factors, and the delivery pipeline is long, which can lead to severe vibration of the pipeline during paste delivery, damage to the pipe hoop and seal of the pipeline joint, and even safety accidents of pipe hoop bursting and paste leakage, which are urgent for a device capable of controlling the flow of the pipeline in real time according to the delivery amount of paste.
In the paste filling process, the pipeline is filled with water to avoid vibration of the pipeline when the paste is conveyed, and different pastes and water are needed to be used for flushing the pipeline when the filling is finished, and the flow of the pipeline is also needed to be regulated due to different mobility of conveying media, so that the device plays a vital safety guarantee role on a paste filling system. Because the pressure of the filling pipeline is up to 10MPa, the device is required to bear high pressure, and meanwhile, the device is required to be large in caliber, resistant to abrasion, small in size, compact in structure, simple and convenient to operate, and convenient to detach and maintain.
At present, the adjustment of paste filling pipelines in the coal mine cannot be met in the market, and the requirements of high pressure, small volume, simple structure, application of paste media in the coal mine, wear resistance, simple operation and maintenance and the like cannot be met simultaneously by a plurality of common pipeline switching devices.
Disclosure of Invention
The invention aims to provide a device and a control method for guaranteeing underground paste filling pipelines, which are used for realizing the adjustment of pipeline flow in the underground continuous paste filling process of a coal mine, and the control method is convenient to process, compact in structure, safe and reliable, can adjust the pipeline flow and guarantee the pipeline safety.
The purpose of the invention is realized in the following way: the invention comprises the following steps: underground paste filling pipeline guaranteeing device and pipeline guaranteeing device control method are adopted.
The paste filling pipeline guarantee device comprises: an upper valve and a lower valve; the upper valve and the lower valve are correspondingly and fixedly connected on the main pipeline, and the upper valve and the lower valve are coaxially communicated on the main pipeline.
The lower valve includes: the valve comprises a valve body lower end cover, a lower adjusting ring, a lower mandrel and a lower valve body; the upper end of the lower valve body is fixedly connected to the main pipeline; the valve body is characterized in that a lower core shaft is arranged in the lower valve body, the lower core shaft moves in the lower valve body, a sealing ring is connected to the side wall of the lower core shaft, a valve body lower end cover is connected to the lower end part of the lower valve body through an adjusting ring, and a C oil inlet and outlet are formed in the valve body lower end cover.
The upper valve comprises: the device comprises an upper adjusting ring, an upper valve body, a sealing ring assembly, a core sleeve, a cylinder barrel, an adjusting head, a connecting sleeve, an upper mandrel, a valve body upper end cover, a cylinder barrel end cover, a rod sealing end cover, a rod, an anti-rotation support and an anti-rotation block; the lower end of the upper valve body is fixedly connected to the main pipeline; the upper end of the upper valve body is connected with an upper valve body end cover through an upper adjusting ring, and a B oil inlet and outlet are formed in the upper valve body end cover; the upper end cover of the valve body is connected with a cylinder barrel, the cylinder barrel is internally and sequentially connected with a cylinder barrel end cover and an upper mandrel, the cylinder barrel end cover is connected with a rod through a rod sealing end cover, the centers of the rod, the cylinder barrel end cover and the upper mandrel are provided with oil passing through holes, and the upper end of the rod is an oil inlet and outlet; the outer wall of the lower end of the cylinder barrel is connected with a core sleeve, and the core sleeve is sleeved with a sealing ring assembly; an adjusting head is arranged in the core sleeve and is connected with the lower end of the upper mandrel; a gap is formed between the adjusting head and the cylinder barrel, the gap and the lower mandrel form a cavity, and the outlets of the oil passing through holes of the rod, the cylinder barrel end cover and the upper mandrel are positioned at the cavity; all the relative movement parts are connected with a combined seal; the upper end of the upper end cover of the valve body is connected with an anti-rotation support, and an anti-rotation block is arranged on the anti-rotation support.
The control method of the pipeline guarantee device comprises the following steps:
the three oil inlet and outlet ports of the oil inlet and outlet port A, the oil inlet and outlet port B and the oil inlet and outlet port C are controlled, and the movement of the lower mandrel, the core sleeve, the upper mandrel and the regulating head is realized;
when the oil inlet and outlet of the B is filled with oil, the core sleeve drives the upper core shaft and the adjusting head to move downwards integrally, the lower core shaft is pushed to move downwards, and the core sleeve moves into the lower valve body to completely stop the main pipeline;
when the oil inlet and outlet of the C oil inlet and outlet port is used for oil feeding, the lower mandrel is pushed to move upwards, the upper mandrel and the adjusting head are driven by the mandrel sleeve to move upwards integrally until the lower mandrel coincides with the through hole of the main pipeline, and the main pipeline is opened;
when the oil inlet and outlet of the A oil inlet and outlet port is used for oil inlet, the upper mandrel and the adjusting head move downwards in the cylinder barrel and the core sleeve, the adjusting head is pushed out of the core sleeve, the main pipeline passage is controlled, and stepless adjustment of the on and off of the main pipeline is realized;
the on-site manual reversing valve handle is configured to control the upper mandrel, the lower mandrel and the adjusting head to move up and down respectively;
after the displacement sensor for adjusting the stroke is arranged on the device, the flow adjustment quantity of the pipeline can be remotely mastered in real time;
the pressure gauge and the pressure sensor are arranged on the main pipe, the pressure of the main pipe can be checked in the remote centralized control room and the site, the real-time display and collection of paste conveying parameters are realized, and the paste conveying parameters are uploaded to the remote centralized control room, so that the safety of a paste conveying pipeline and the stability of a filling system are ensured.
The invention has the beneficial effects that due to the adoption of the scheme, the novel high-pressure-resistant sealing device is compact in structure, wear-resistant, high-pressure-resistant, good in sealing performance, convenient to assemble, disassemble and maintain, and simple and labor-saving to operate. After the displacement sensor for adjusting the stroke is installed on the device, the flow adjustment quantity of the pipeline can be mastered remotely in real time, the pressure gauge and the pressure sensor are installed on the main pipe, the pressure of the main pipe can be checked in the centralized control room and the site, real-time display and collection of paste conveying parameters are realized, and the safety of a paste conveying pipeline and the stability of a filling system are truly ensured.
1. By adopting the paste filling pipeline guaranteeing device, the flow of the underground paste filling pipeline can be regulated, the pipeline safety is guaranteed, the problem caused by unstable paste conveying is solved, the pipeline is also favorably flushed, and the working efficiency is improved.
2. Due to the adoption of the paste filling pipeline guaranteeing device, the problem of unstable pipeline caused by the fluidity change of filling media such as gangue slurry, powdered coal mortar, flushing water and the like in a filling system is solved.
3. By adopting the paste filling pipeline guarantee device, visualization of filling pipeline flow regulation and real-time monitoring of pipeline pressure are realized, and the paste filling system is controlled on site and remotely, so that the paste filling system is more automatic and intelligent.
The pipeline guarantee device has the advantages of convenient processing, compact structure, safety and reliability, and can adjust the pipeline flow, ensure the pipeline safety and achieve the purpose of the invention.
The advantages are that:
1. by adopting the paste filling pipeline guarantee device, on-site and remote control can be realized, and on-site overhaul and remote control of a centralized control room are facilitated.
2. By adopting the paste filling pipeline guarantee device, leakage can not occur under the working condition of high pressure, and the valve body is simple in principle, safe and reliable.
3. The paste filling pipeline guarantee device is simple in structure, small in part consumption, greatly reduced in failure rate and convenient to detach and maintain.
4. By adopting the paste filling pipeline guarantee device, the structure is compact, the paste filling pipeline guarantee device can be used and installed conveniently in a narrow space, and unmanned remote control can be realized.
Drawings
Fig. 1 is a schematic diagram of the structure of the paste filling line guaranteeing device in the closing state.
Fig. 2 is a schematic view of the paste filling line guaranteeing device in the invention when the paste filling line guaranteeing device is completely opened.
Fig. 3 is a schematic view showing the extension of the adjusting head of the paste filling pipeline guarantee device.
In the figure, 1, a valve body lower end cover; 2-1, an upper adjusting ring; 2-2, lower adjusting ring; 3. a lower core shaft; 4-1, an upper valve body; 4-2, a lower valve body; 5. a seal ring assembly; 6. a core sleeve; 7. a cylinder; 8. adjusting the head; 9. connecting sleeves; 10. an upper mandrel; 11. an upper end cover of the valve body; 12. a cylinder end cap; 13. a rod seal end cap; 14. a rod; 15. an anti-rotation support; 16. an anti-rotation block; 17. and a main pipeline.
Detailed Description
The invention comprises the following steps: underground paste filling pipeline guaranteeing device and pipeline guaranteeing device control method are adopted.
The paste filling pipeline guarantee device comprises: an upper valve and a lower valve; the upper valve and the lower valve are correspondingly and fixedly connected to the main pipeline 17, and the upper valve and the lower valve are coaxially communicated to the main pipeline 17.
The lower valve includes: the valve body lower end cover 1, the lower adjusting ring 2-2, the lower mandrel 3 and the lower valve body 4-2;
the upper end of the lower valve body 4-2 is fixedly connected to the main pipeline 17; the lower valve body 4-2 is internally provided with a lower mandrel 3, the lower mandrel 3 moves in the lower valve body 4-2, the side wall of the lower mandrel 3 is connected with a sealing ring, the lower end cover 1 of the valve body is connected with the lower end part of the lower valve body 4-2 through an adjusting ring 2, and the lower end cover 1 of the valve body is provided with a C oil inlet and outlet.
The upper valve comprises: the upper adjusting ring 2-1, the upper valve body 4-1, the sealing ring component 5, the core sleeve 6, the cylinder barrel 7, the adjusting head 8, the connecting sleeve 9, the upper core shaft 10, the upper valve body end cover 11, the cylinder barrel end cover 12, the rod sealing end cover 13, the rod 14, the anti-rotation support 15 and the anti-rotation block 16;
the lower end of the upper valve body 4-1 is fixedly connected to the main pipeline 17; the upper end of the upper valve body 4-1 is connected with a valve body upper end cover 11 through an upper adjusting ring 2-1, and a B oil inlet and outlet are formed in the valve body upper end cover 11; the upper end cover 11 of the valve body is connected with a cylinder barrel 7, a cylinder barrel end cover 12 and an upper mandrel 10 are sequentially connected in the cylinder barrel 7, a rod 14 is connected to the cylinder barrel end cover 12 through a rod sealing end cover 13, an oil passing through hole is formed in the centers of the rod 14, the cylinder barrel end cover 12 and the upper mandrel 10, and an oil inlet and outlet port is formed at the upper end A of the rod 1; the outer wall of the lower end of the cylinder barrel 7 is connected with a core sleeve 6, and a sealing ring assembly 5 is sleeved outside the core sleeve 6; an adjusting head 8 is arranged in the core sleeve 6, and the adjusting head 8 is connected with the lower end of the upper mandrel 10; a gap is formed between the adjusting head 8 and the cylinder barrel 7, the gap and the lower core shaft 3 form a cavity, and the rod 14, the cylinder barrel end cover 12 and an oil passing through hole outlet of the upper core shaft 10 are positioned at the cavity; all the relative movement parts are connected with a combined seal; an anti-rotation support 15 is connected to the upper end of the upper end cover 11 of the valve body, and an anti-rotation block 16 is arranged on the anti-rotation support 15.
The control method of the pipeline guarantee device comprises the following steps:
and the three oil inlet and outlet ports of the oil inlet and outlet port A, the oil inlet and outlet port B and the oil inlet and outlet port C are controlled to realize the movement of the lower mandrel 3, the core sleeve 6, the upper mandrel 10 and the regulating head 8.
When the oil inlet and outlet of the B is filled with oil, the core sleeve 6 drives the upper core shaft 10 and the adjusting head 8 to integrally move downwards, the lower core shaft 3 is pushed to move downwards, and the core sleeve 6 moves into the lower valve body to completely stop the main pipeline 17.
When the oil inlet and outlet of the C is filled with oil, the lower mandrel 3 is pushed to move upwards, the mandrel sleeve 6 drives the upper mandrel 10 and the adjusting head 8 to move upwards integrally until the lower mandrel 3 coincides with the through hole of the main pipeline 17, and the main pipeline 17 is opened.
When the oil inlet and outlet of the A oil inlet and outlet port is used for oil, the upper mandrel 10 and the adjusting head 8 downwards run in the cylinder barrel 7 and the core sleeve 6, the adjusting head 8 is pushed out of the core sleeve 6, the main pipeline passage is controlled, and the stepless adjustment of the on and off of the main pipeline is realized.
An on-site manual reversing valve handle is arranged to respectively control the upper mandrel 10, the lower mandrel 3 and the adjusting head 8 to move up and down.
After the displacement sensor for adjusting the stroke is arranged on the device, the flow adjustment quantity of the pipeline can be remotely mastered in real time;
the pressure gauge and the pressure sensor are arranged on the main pipe, the pressure of the main pipe can be checked in the remote centralized control room and the site, the real-time display and collection of paste conveying parameters are realized, and the paste conveying parameters are uploaded to the remote centralized control room, so that the safety of a paste conveying pipeline and the stability of a filling system are ensured.
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following description will briefly describe the drawings used in the description of the present invention or the prior art, it being obvious that the drawings in the following description are only some embodiments of the present invention and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
Embodiments of the present invention will be further described below with reference to the accompanying drawings.
Example 1: as shown in fig. 1, the structure diagram of the paste filling pipeline guaranteeing device when closed is that the shaft core reaches the bottom of the valve body when the hydraulic oil is communicated with the oil inlet and outlet, the adjusting head is arranged inside the shaft core, the sealing of the adjusting head plays a role in protecting, and the main pipeline is completely cut off.
Fig. 2 is a schematic diagram of the paste filling pipeline guarantee device when the main pipeline is completely opened, the shaft core is pushed to the top when the hydraulic oil is communicated from the oil outlet, the through hole of the shaft core coincides with the main pipeline, the pipeline is completely opened, and the pipeline flow reaches the maximum.
Fig. 3 is a schematic diagram illustrating the flow regulation of the paste filling pipeline guarantee device, when the oil inlet and outlet A and the oil inlet and outlet B are simultaneously communicated with hydraulic oil, the regulating head stretches out, the pipeline is cut off, and the flow of the pipeline is controlled by the expansion and contraction amount of the regulating head.
The valve body lower end cover 1 is in threaded connection with the adjusting ring, the lower adjusting ring 2-2 is in bolt connection with the lower valve body 4-2, the radial direction of the valve body lower end cover 1 is provided with a C oil inlet and outlet, the valve body lower end cover 1 is tightly matched with the end surface of the lower valve body 4-2, and the radial direction is sealed by an O-shaped ring.
The upper end cover 11 of the valve body is matched with the upper valve body 4-1 in the same mode at the top of the upper valve body 4-1, an oil inlet and an oil outlet are formed in the radial direction of the upper end cover 11 of the valve body, a cylinder 7 passes through the middle of the upper end cover, a sealing ring in various modes is used for sealing the cylinder 7, and an anti-rotation support 15 is arranged on the upper end cover 11 of the valve body.
The upper shaft core 10 and the upper valve body 4-1 are sealed in various ways, a sealing ring assembly is adopted at the position of the main pipeline 17, the sealing effect of the main pipeline 17 is guaranteed, the core sleeve 6 and the cylinder barrel 7 are connected with the upper shaft core 10 by screws, and along with the up-and-down movement of the upper shaft core 10, the anti-rotation block 16 is arranged at the upper part of the cylinder barrel 7 and is matched with the anti-rotation support 15 to prevent the upper shaft core 10 from rotating.
The head of the upper mandrel 10 is a sphere, is matched with a spherical concave body at the tail of the adjusting head 8, is pressed by a connecting sleeve 9 and is screwed by a screw, an oil inlet and outlet A is processed in the middle of the upper mandrel 10, the upper mandrel is sealed by an upper end cover 11 and a cylinder end cover 12, and hydraulic oil is fed into the top of a rod 14 to control the adjusting head 8.
The valve body 4 is a welding piece, bosses at two ends are the same as those of the pipeline boss of the main pipeline 17, and the same pipe hoop is adopted for connection, so that the maintenance and the pipeline connection are convenient.

Claims (1)

1. An underground paste filling pipeline guaranteeing device is characterized in that: the paste filling pipeline guarantee device comprises: an upper valve and a lower valve; the upper valve and the lower valve are correspondingly and fixedly connected to the main pipeline, and the upper valve and the lower valve are coaxially communicated with the main pipeline;
the upper valve comprises: the device comprises an upper adjusting ring, an upper valve body, a sealing ring assembly, a core sleeve, a cylinder barrel, an adjusting head, a connecting sleeve, an upper mandrel, a valve body upper end cover, a cylinder barrel end cover, a rod sealing end cover, a rod, an anti-rotation support and an anti-rotation block; the lower end of the upper valve body is fixedly connected to the main pipeline; the upper end of the upper valve body is connected with an upper valve body end cover through an upper adjusting ring, and a B oil inlet and outlet are formed in the upper valve body end cover; the upper end cover of the valve body is connected with a cylinder barrel, the cylinder barrel is internally and sequentially connected with a cylinder barrel end cover and an upper mandrel, the cylinder barrel end cover is connected with a rod through a rod sealing end cover, the centers of the rod, the cylinder barrel end cover and the upper mandrel are provided with oil passing through holes, and the upper end of the rod is an oil inlet and outlet; the outer wall of the lower end of the cylinder barrel is connected with a core sleeve, and the core sleeve is sleeved with a sealing ring assembly; an adjusting head is arranged in the core sleeve and is connected with the lower end of the upper mandrel; a gap is formed between the adjusting head and the cylinder barrel, the gap and the lower mandrel form a cavity, and the outlets of the oil passing through holes of the rod, the cylinder barrel end cover and the upper mandrel are positioned at the cavity; all the relative movement parts are connected with a combined seal; the upper end of the upper end cover of the valve body is connected with an anti-rotation support, and an anti-rotation block is arranged on the anti-rotation support;
the lower valve includes: the valve comprises a valve body lower end cover, a lower adjusting ring, a lower mandrel and a lower valve body; the upper end of the lower valve body is fixedly connected to the main pipeline; a lower mandrel is arranged in the lower valve body, the lower mandrel moves in the lower valve body, a sealing ring is connected to the side wall of the lower mandrel, a valve body lower end cover is connected to the lower end part of the lower valve body through an adjusting ring, and a C oil inlet and outlet are arranged on the valve body lower end cover;
the control method of the pipeline guarantee device comprises the following steps:
the three oil inlet and outlet ports of the oil inlet and outlet port A, the oil inlet and outlet port B and the oil inlet and outlet port C are controlled, and the movement of the lower mandrel, the core sleeve, the upper mandrel and the regulating head is realized;
when the oil inlet and outlet of the B is filled with oil, the core sleeve drives the upper core shaft and the adjusting head to move downwards integrally, the lower core shaft is pushed to move downwards, and the core sleeve moves into the lower valve body to completely stop the main pipeline;
when the oil inlet and outlet of the C oil inlet and outlet port is used for oil feeding, the lower mandrel is pushed to move upwards, the upper mandrel and the adjusting head are driven by the mandrel sleeve to move upwards integrally until the lower mandrel coincides with the through hole of the main pipeline, and the main pipeline is opened;
when the oil inlet and outlet of the A oil inlet and outlet port is used for oil inlet, the upper mandrel and the adjusting head move downwards in the cylinder barrel and the core sleeve, the adjusting head is pushed out of the core sleeve, the main pipeline passage is controlled, and stepless adjustment of the on and off of the main pipeline is realized;
the on-site manual reversing valve handle is configured to control the upper mandrel, the lower mandrel and the adjusting head to move up and down respectively;
after the displacement sensor for adjusting the stroke is arranged on the device, the flow adjustment quantity of the pipeline can be remotely mastered in real time;
the pressure gauge and the pressure sensor are arranged on the main pipe, the pressure of the main pipe can be checked in the remote centralized control room and the site, the real-time display and collection of paste conveying parameters are realized, and the paste conveying parameters are uploaded to the remote centralized control room, so that the safety of a paste conveying pipeline and the stability of a filling system are ensured.
CN201911138229.0A 2019-11-20 2019-11-20 Underground paste filling pipeline guaranteeing device and control method Active CN110735939B (en)

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Application Number Priority Date Filing Date Title
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CN110735939B true CN110735939B (en) 2024-03-15

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CN110425296A (en) * 2019-08-08 2019-11-08 广州龙渊液压机械有限公司 A kind of hydraulic ultrahigh-pressure water hydraulic antipollution valve
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DE102012003230B3 (en) * 2012-02-20 2013-03-21 Festo Ag & Co. Kg Process valve has control head, which is formed by base body having coupling device for fixing valve housing and terminal portion to connect fluid conductor
CN203835331U (en) * 2014-04-22 2014-09-17 江苏金加钻采设备有限公司 Hydraulic fracturing valve
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