CN217558695U - Liquid return system - Google Patents
Liquid return system Download PDFInfo
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- CN217558695U CN217558695U CN202221484760.0U CN202221484760U CN217558695U CN 217558695 U CN217558695 U CN 217558695U CN 202221484760 U CN202221484760 U CN 202221484760U CN 217558695 U CN217558695 U CN 217558695U
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- liquid
- emulsion
- liquid return
- pipe
- return
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/005—Filling or draining of fluid systems
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Pipeline Systems (AREA)
Abstract
The utility model belongs to the technical field of coal exploitation and specifically relates to a liquid return system is related to, including setting up the liquid return case that the emulsion that is used for flowing hydraulic support to hydraulic support liquid outlet department carries out the collection, the power device of intercommunication in liquid return case exit department and the liquid return pipe of intercommunication between power device export and emulsion pump station, be provided with control on the liquid return pipe the first control assembly of liquid return pipe state that opens and shuts. This application can reduce the emulsion at the on-way resistance of returning the liquid in-process through setting up the long-range liquid system that returns that is used for hydraulic support for coal mining, and the significantly reduced is because of long-range liquid on-way resistance that returns too big and normally work the influence that causes hydraulic support.
Description
Technical Field
The application relates to the field of coal mining, in particular to a liquid return system.
Background
In the coal mining process, a large amount of hydraulic execution equipment is needed to work, and the hydraulic execution equipment is equipment driven to operate by using hydraulic pressure, such as: the hydraulic support is one of important hydraulic execution devices of a coal fully mechanized mining face. Taking the hydraulic support as an example, the power source of the hydraulic support is that the emulsion in an emulsion pump station is conveyed through a liquid supply pipeline to meet the power requirement of the hydraulic support. In the in-service use process, the emulsion pump passes through the feed liquor pipe with the emulsion in the emulsion case and carries to the hydraulic support department of working face to realize remote confession liquid, simultaneously, the emulsion among the hydraulic support is through returning the liquid pipe conveying back in the emulsion pump station.
The flow of the emulsion flowing from the hydraulic support to the emulsion pump station is not constant, the emulsion completely flows back to the emulsion pump station by the flow of the hydraulic support, and the distance between the emulsion pump station and the hydraulic support is far, so that the on-way resistance of the emulsion in the process of returning the emulsion is too large when the height difference occurs between the emulsion pump station and the hydraulic support, and the normal returning of the emulsion on the hydraulic support is influenced.
SUMMERY OF THE UTILITY MODEL
In order to reduce the emulsion at the on-way resistance of returning the liquid in-process, reduce the influence that the normal liquid that returns of emulsion caused on the hydraulic support, this application provides a liquid system returns.
The application provides a return liquid system adopts following technical scheme:
the utility model provides a return liquid system, is used for carrying out the return liquid case of collecting at hydraulic support liquid outlet department to the emulsion that hydraulic support flowed out, feeds through the power device in return liquid case exit and feeds through the liquid return pipe between power device export and emulsion pump station including setting up, be provided with control on the liquid return pipe return the first control subassembly of liquid pipe state of opening and shutting.
Through adopting above-mentioned technical scheme, the emulsion that flows out from the hydraulic support liquid outlet will directly reach back in the liquid case to through during power device carries the emulsion that returns in the liquid case to the emulsion pump station through returning the liquid pipe, reduced the emulsion at the on-way resistance that returns the liquid in-process, reduced the influence that the normal liquid that returns of emulsion caused on the hydraulic support. And in the conveying process, the first control assembly controls the opening and closing state of the liquid return box and controls the flowing speed of the emulsion so as to adapt to the flow of the emulsion flowing out of the liquid outlet of the hydraulic support.
Optionally, the power device comprises a water pump.
Through adopting above-mentioned technical scheme, can carry the emulsion in the liquid case that returns to the emulsion pump station through the water pump in, reduced the on-the-way resistance of emulsion at the liquid in-process that returns.
Optionally, the liquid return pipe is provided with a plurality ofly, and is a plurality of the parallelly connected setting of liquid return pipe, every all be provided with first control assembly on the liquid return pipe.
Through adopting above-mentioned technical scheme, when the emulsion in returning the liquid case is more, can carry out the transport work of emulsion through a plurality of liquid pipes that return.
Optionally, the first control assembly comprises a first solenoid valve configured to open when the amount of emulsion in the liquid return tank is higher than a set value.
Through adopting above-mentioned technical scheme, can realize the automatic control to the liquid return pipe state of opening and shutting through first solenoid valve.
Optionally, a circulating pipe is arranged between the outlet of the power device and the liquid return tank, and a second control assembly for controlling the opening and closing state of the circulating pipe is arranged on the circulating pipe.
By adopting the technical scheme, when the emulsion in the liquid return tank is less, the circulation of the circulating pipe can be controlled by the second control assembly, so that the emulsion pumped out from the liquid return tank by the power device flows back into the liquid return tank through the circulating pipe again, and the power device is prevented from being damaged due to idling or frequent starting and stopping.
Optionally, the circulating pipe is provided with a plurality of circulating pipes, the plurality of circulating pipes are arranged in parallel, and each circulating pipe is provided with a second control assembly.
By adopting the technical scheme, the emulsion pumped out from the liquid return tank by the power device can flow back to the liquid return tank through the plurality of circulating pipes, so that the phenomenon that the emulsion cannot return normally after a single circulating pipe is damaged is avoided.
Optionally, the second control assembly comprises a second solenoid valve configured to be activated when the amount of emulsion in the liquid return tank is lower than a set value.
By adopting the technical scheme, the automatic control of the opening and closing state of the circulating pipe can be realized through the second electromagnetic valve, and when the emulsion in the liquid return tank is too low, the second electromagnetic valve can automatically control the communication of the circulating pipe.
Optionally, a liquid level sensor is installed in the liquid return tank and used for detecting the amount of the emulsion in the liquid return tank.
Through adopting above-mentioned technical scheme, can carry out real-time detection to the emulsion volume of returning the liquid incasement through level sensor to control the emulsion and flow back to emulsion pump station or circulating flow to returning the liquid case.
In summary, the present application includes at least one of the following beneficial technical effects:
due to the arrangement of the liquid return box and the power device, the on-way resistance of the return of the emulsion on the hydraulic support is greatly reduced, and the influence on the normal return of the emulsion on the hydraulic support is reduced; the problems of no action, slow action and misoperation of the support caused by large liquid return resistance when the hydraulic support is used for remote liquid supply in the coal mine industry are solved, and the accuracy and the high efficiency of the action of the hydraulic support are ensured; the technical guarantee of remote centralized liquid supply is provided for the ultra-long mining face with the mining distance reaching 10km in the coal mine industry;
the circulating pipe is arranged so that when the emulsion in the liquid return tank is less, the emulsion output by the power device returns to the liquid return tank again, and the power device is prevented from idling or being frequently started and stopped to cause damage;
the liquid level sensor is arranged to detect the amount of the emulsified liquid in the liquid return tank in real time, and the first control assembly and the second control assembly are operated through detected data to control the emulsified liquid to flow back to the emulsified liquid pump station or the liquid return tank.
Drawings
Fig. 1 is a schematic view of the overall structure of the present application.
Fig. 2 is a schematic diagram of a connection manner of a control circuit according to the present application.
Description of the reference numerals: 1. a liquid return tank; 11. a liquid level sensor; 2. a power plant; 3. a liquid return pipe; 31. a first control assembly; 4. a circulation pipe; 41. a second control assembly.
Detailed Description
The present application is described in further detail below with reference to figures 1-2.
The embodiment of the application discloses a liquid return system. Referring to fig. 1, the liquid return system comprises a liquid return tank 1 arranged at a liquid outlet of the hydraulic support and used for collecting the emulsion flowing out of the hydraulic support, a power device 2 installed on one side of the liquid return tank 1, and a liquid return pipe 3 communicated between an outlet of the power device 2 and an emulsion pump station, wherein an inlet of the power device 2 is communicated with the liquid return tank 1, and a first control assembly 31 for controlling the opening and closing state of the liquid return pipe 3 is arranged on the liquid return pipe 3. The emulsion that flows from hydraulic support will directly arrive in returning liquid case 1, then carry to returning liquid pipe 3 through power device 2 in to finally arrive in the emulsion pump station, accomplish the liquid back work of emulsion, make the emulsion that flows from hydraulic support can be smooth flow to the emulsion pump station in, reduced the on-the-way resistance of emulsion at the liquid back in-process, reduced the influence that causes the normal liquid back of emulsion on the hydraulic support.
Wherein, power device 2 can select for use the water pump, can take out the emulsion in returning the liquid case 1 and carry to the emulsion pump station through the water pump, provides power for the normal liquid that returns of emulsion.
Wherein, for the flow of control from the water pump flow to emulsion pump station, it is provided with many to return liquid pipe 3, many return liquid pipe 3 parallelly connected settings, all be provided with first control assembly 31 on every return liquid pipe 3, every first control assembly 31 is used for controlling every state of opening and shutting that returns on the liquid pipe 3, through controlling the opening and shutting of the first control assembly 31 of different quantity, can select the quantity that flows back liquid pipe 3 to the emulsion pump station from the water pump to the flow of control from the water pump flow to emulsion pump station. In the present application, four liquid return pipes 3 are provided as an example.
Referring to fig. 1 and 2, the first control assembly 31 includes a first electromagnetic valve disposed on each liquid return tube 3, and the on/off of the liquid return tube 3 where the first electromagnetic valve is located can be controlled by controlling the open/close state of the first electromagnetic valve. Wherein, the first solenoid valve is configured to start when the emulsion in the liquid return tank 1 is higher than the set value, specifically, install level sensor 11 in the liquid return tank 1, can detect the emulsion volume in the liquid return tank 1 through level sensor 11, and level sensor 11 is connected with every first solenoid valve electricity through the PLC controller. The PLC controller passes through the emulsion volume in the liquid return case 1 that level sensor 11 detected, just can control the first solenoid valve of different positions and open to make the liquid return pipe 3 of suitable quantity switch on, control the emulsion volume that flows to the emulsion pump station.
Referring to fig. 1, in order to avoid damage to the water pump due to idling or frequent start and stop of the water pump when the emulsion in the liquid return tank 1 is too small, a circulating pipe 4 is further disposed between an outlet of the water pump and the liquid return tank 1, and a second control assembly 41 for controlling the on-off state of the circulating pipe 4 is further disposed on the circulating pipe 4.
The circulating pipes 4 can be provided with a plurality of circulating pipes 4, the circulating pipes 4 are arranged in parallel, each circulating pipe 4 is provided with a second control assembly 41, each second control assembly 41 is used for controlling the on-off state of each circulating pipe 4, the circulating pipes 4 in different numbers can be communicated by controlling the opening of the second control assemblies 41 in different numbers, so that the emulsion amount in the liquid return tank 1 can be controlled, the emulsion can flow in the liquid return tank 1, the water pump and the circulating pipes 4 in a reciprocating manner, and the situation that the water pump idles or is frequently started and stopped is avoided. The present application is described taking the case where two circulation pipes 4 are provided.
Referring to fig. 1 and 2, the second control unit 41 includes a second solenoid valve provided on each circulation pipe 4, and the on/off state of the circulation pipe 4 where the second solenoid valve is located can be controlled by controlling the opening/closing of the second solenoid valve. The second electromagnetic valve is configured to be started when the amount of the emulsion in the liquid return tank 1 is lower than a set value, specifically, the second electromagnetic valve is also electrically connected with the liquid level sensor 11 through the PLC controller, and the PLC controller can control the second electromagnetic valve to open and close through the amount of the emulsion in the liquid return tank 1 detected by the liquid level sensor 11 so as to control whether the emulsion in the liquid return tank 1 flows to the emulsion pump station through the liquid return pipe 3 or flows back to the liquid return tank 1 through the circulating pipe 4.
The implementation principle of a liquid return system in the embodiment of the application is as follows: during the use, when the emulsion volume in the liquid return case 1 is more, the PLC controller will control the first solenoid valve of different quantity and open, the second solenoid valve is closed simultaneously, thereby control the liquid return pipe 3 of different quantity and switch on, with emulsion to the emulsion pump station in the control liquid return case 1, and the flow of control flow to the emulsion pump station, make the emulsion on the hydraulic support can be smooth flow to the emulsion pump station in, the on-way resistance of emulsion at the liquid return in-process has been reduced, reduce the influence that the normal liquid return of emulsion caused on the hydraulic support. When the emulsion in the liquid return tank 1 is less, the PLC controller controls the first electromagnetic valves to be closed and controls the second electromagnetic valves with different numbers to be opened so as to control the conduction of the circulating pipe 4, so that the emulsion pumped out by the water pump from the liquid return tank 1 flows back to the liquid return tank 1 through the circulating pipe 4 again, the circulation is performed in sequence, and the condition that the water pump idles or is frequently started and stopped is avoided.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A liquid return system is characterized in that: including setting up liquid return case (1) that is used for carrying out the collection to the emulsion that hydraulic support flows in hydraulic support liquid outlet department, power device (2) and the liquid return pipe (3) of intercommunication between power device (2) export and emulsion pump station in liquid return case (1) exit, be provided with control on liquid return pipe (3) return first control assembly (31) of liquid pipe (3) state of opening and shutting.
2. The liquid return system according to claim 1, wherein: the power device (2) comprises a water pump.
3. The fluid return system of claim 1, wherein: it is provided with a plurality ofly to return liquid pipe (3), and is a plurality of it sets up to return liquid pipe (3) parallelly connected, every it all is provided with first control assembly (31) on liquid pipe (3) to return.
4. The fluid return system of claim 1, wherein: the first control assembly (31) comprises a first electromagnetic valve which is opened when the emulsion amount in the liquid return tank (1) is higher than a set value.
5. The liquid return system according to claim 1, wherein: a circulating pipe (4) is arranged between the outlet of the power device (2) and the liquid return tank (1), and a second control assembly (41) is arranged on the circulating pipe (4).
6. The liquid return system according to claim 5, wherein: the circulating pipes (4) are arranged in a plurality of parallel connection modes, and a second control assembly (41) for controlling the opening and closing states of the circulating pipes (4) is arranged on each circulating pipe (4).
7. The fluid return system according to claim 5, wherein: the second control assembly (41) comprises a second electromagnetic valve which is started when the emulsion amount in the liquid return tank (1) is lower than a set value.
8. A fluid return system according to claim 4 or 7, wherein: and a liquid level sensor (11) for detecting the amount of the emulsion in the liquid return tank (1) is arranged in the liquid return tank (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110669504.2A CN113404744A (en) | 2021-06-16 | 2021-06-16 | Liquid return system |
| CN2021106695042 | 2021-06-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217558695U true CN217558695U (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110669504.2A Pending CN113404744A (en) | 2021-06-16 | 2021-06-16 | Liquid return system |
| CN202221484760.0U Active CN217558695U (en) | 2021-06-16 | 2022-06-14 | Liquid return system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110669504.2A Pending CN113404744A (en) | 2021-06-16 | 2021-06-16 | Liquid return system |
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| CN (2) | CN113404744A (en) |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100516553C (en) * | 2006-08-18 | 2009-07-22 | 淄博市博山防爆电器厂有限公司 | Intelligent emulsion pump station for mining |
| CN103692282A (en) * | 2013-12-09 | 2014-04-02 | 苏州市天吴电工材料科技有限公司 | Water pool automatic circulating system |
| CN107237786B (en) * | 2017-07-20 | 2019-03-26 | 一重集团大连工程技术有限公司 | Hydraulic station remotely conveys oil return buffer unit and application method |
| CN107327686B (en) * | 2017-08-10 | 2022-09-16 | 油威力液压科技股份有限公司 | Hydraulic lubricating system of spinning machine |
| CN208291361U (en) * | 2018-05-18 | 2018-12-28 | 重庆工商职业学院 | A kind of water intaking vehicle vibration hydraulic system |
| CN109341995B (en) * | 2018-11-22 | 2024-01-12 | 苏州苏试试验集团股份有限公司 | Automatic regulating system for hydraulic oil return flow of horizontal slipway of vibrating table |
| CN111396380A (en) * | 2020-04-30 | 2020-07-10 | 三一重机有限公司 | Oil tank and engineering mechanical equipment |
| CN112762034A (en) * | 2021-02-10 | 2021-05-07 | 山西高行液压股份有限公司 | Ultra-precise hydraulic control method |
-
2021
- 2021-06-16 CN CN202110669504.2A patent/CN113404744A/en active Pending
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2022
- 2022-06-14 CN CN202221484760.0U patent/CN217558695U/en active Active
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| CN113404744A (en) | 2021-09-17 |
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