CN117072121A - Treatment device, gas drainage system and monitoring method - Google Patents
Treatment device, gas drainage system and monitoring method Download PDFInfo
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- CN117072121A CN117072121A CN202311013737.2A CN202311013737A CN117072121A CN 117072121 A CN117072121 A CN 117072121A CN 202311013737 A CN202311013737 A CN 202311013737A CN 117072121 A CN117072121 A CN 117072121A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/16—Enhanced recovery methods for obtaining hydrocarbons
- E21B43/18—Repressuring or vacuum methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/006—Production of coal-bed methane
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/34—Arrangements for separating materials produced by the well
- E21B43/35—Arrangements for separating materials produced by the well specially adapted for separating solids
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B21/00—Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
- G08B21/18—Status alarms
- G08B21/24—Reminder alarms, e.g. anti-loss alarms
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- Fluid Mechanics (AREA)
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Abstract
本发明具体公开一种处理装置、瓦斯抽采系统及监控方法。所述处理装置，包括主体、第一端口、第二端口、清扫组件和第三端口，第一端口处设有第一控制阀以控制瓦斯抽采管道与腔体的导通或断开，第二端口设在主体上部，第二端口处设有第二控制阀，第二控制阀具有第一状态和第二状态，在第一状态下，腔体与负压抽采管道连通，在第二状态下，腔体与空气管道连通，清扫组件用于对腔体的内壁面进行清扫，第三端口用于排出腔体内的污物。本发明实施例的处理装置能够实现对瓦斯抽采管道中的瓦斯和污物的分离，提高污物的清排效果。
The invention specifically discloses a processing device, a gas drainage system and a monitoring method. The processing device includes a main body, a first port, a second port, a cleaning component and a third port. A first control valve is provided at the first port to control the connection or disconnection of the gas drainage pipeline and the cavity. The second port is provided on the upper part of the main body, and a second control valve is provided at the second port. The second control valve has a first state and a second state. In the first state, the cavity is connected to the negative pressure extraction pipeline, and in the second state, the cavity is connected to the negative pressure extraction pipeline. In this state, the cavity is connected to the air duct, the cleaning component is used to clean the inner wall of the cavity, and the third port is used to discharge dirt in the cavity. The processing device according to the embodiment of the present invention can separate gas and dirt in the gas extraction pipeline and improve the effect of cleaning and discharging dirt.
Description
Technical Field
The application belongs to the technical field of gas extraction, and particularly relates to a processing device, a gas extraction system and a monitoring method.
Background
When the coal mine is used for pumping and discharging gas, dirt such as water, mud, slag and the like which affect gas pumping and discharging in a gas hole are usually sucked into the pipeline, the dirt can reduce the gas pumping and discharging efficiency, negative pressure pumping and discharging are usually adopted when the gas is pumped and discharged at present, and a water discharging device is used for discharging the dirt in the pipeline.
The drainage device in the related art realizes drainage through modes such as negative pressure, buoyancy, gravity and magnetic force, and the sewage can adhere to the inner wall of the cavity, so that the problems of untimely drainage, blockage of a drainage pipeline and the like are easily caused, the gas extraction work is influenced, and frequent maintenance is needed.
Disclosure of Invention
The present application aims to solve at least one of the technical problems in the related art to some extent. Therefore, the embodiment of the application provides a treatment device which can separate gas and dirt in a gas extraction pipeline and improve the dirt cleaning and discharging effect.
The embodiment of the application also provides a gas extraction system.
The embodiment of the application also provides a gas extraction monitoring method.
The processing device of the embodiment of the application comprises:
a body having a cavity;
the first port is arranged at the upper part of the main body and is connected with the gas extraction pipeline, and a first control valve is arranged at the first port to control the connection or disconnection of the gas extraction pipeline and the cavity;
the second port is arranged at the upper part of the main body, a second control valve is arranged at the second port, the second port is connected with a negative pressure extraction pipeline and an air pipeline through the second control valve, the second control valve has a first state and a second state, the cavity is communicated with the negative pressure extraction pipeline in the first state, and the cavity is communicated with the air pipeline in the second state;
the cleaning assembly is arranged in the cavity and is used for cleaning the inner wall surface of the cavity;
the third port is arranged at the lower part of the main body, a third control valve is arranged at the third port to control the third port to be opened or closed, and the third port is used for discharging dirt in the cavity.
The treatment device provided by the embodiment of the application can separate the gas and the dirt in the gas extraction pipeline, and improves the dirt cleaning and discharging effect.
In some embodiments, the body includes a first housing having a cylindrical interior cavity, the cleaning assembly comprising:
the shaft body is pivoted on the main body, and a part of the shaft body is arranged in the cavity;
a cleaning member provided on the shaft body, the cleaning member being in contact with an inner wall surface of the cavity;
and the driving part is connected with the shaft body to drive the shaft body and the cleaning component to rotate.
In some embodiments, the main body further comprises a second housing, an inner cavity of the second housing is tapered, the second housing is arranged at the lower part of the first housing, the third port is arranged at the lower end of the second housing, a slag collecting assembly is arranged in the inner cavity of the second housing, and the slag collecting assembly comprises:
the spiral blade is a variable-diameter spiral blade, the spiral blade is arranged at the lower end of the shaft body, the spiral blade and the shaft body are coaxially arranged, and the outer wall of the spiral blade is attached to the inner wall of the second shell.
In some embodiments, a connection assembly is provided between the first housing and the second housing, the connection assembly comprising:
the first flange is arranged on the outer wall of the first shell, and the lower end of the first shell is provided with an inner sleeve;
the second flange is arranged on the second shell, the upper end of the second shell is provided with outer sleeves, and the outer sleeves are matched and sleeved with the inner sleeves;
a sealing member disposed between the inner sleeve and the outer sleeve;
and the connecting piece is arranged between the first flange and the second flange.
In some embodiments, the processing device further comprises a fourth port provided with a fourth control valve at the fourth port, the fourth port being provided on a side wall of the lower portion of the first housing for discharging the supernatant in the chamber.
In some embodiments, the processing device further comprises a first detection member provided on the main body to detect a weight of soil within the main body; and/or
The processing device further comprises a second detection component which is arranged on the main body to detect the liquid level in the cavity; and/or
The first control valve, the second control valve and the fourth electromagnetic valve are all electromagnetic valves, and the third control valve is an electromagnetic rotary valve; and/or
The helical blade is a shaftless helical blade.
The gas extraction system of the embodiment of the application comprises:
the negative pressure extraction pipeline is connected with the negative pressure extraction equipment so as to form negative pressure in the negative pressure extraction pipeline;
the gas extraction pipelines are arranged in the stratum, a treatment device is arranged between each gas extraction pipeline and the negative pressure extraction pipeline, the treatment device is the treatment device in any embodiment, and the treatment device is used for separating out the gas in the gas extraction pipeline and enabling the gas to flow out of the treatment device through the negative pressure extraction pipeline;
and the control system is used for controlling the action of the processing device to enable the processing device to clear and remove dirt.
The gas extraction monitoring method of the embodiment of the application is based on the gas extraction system for monitoring the gas extraction pipeline, and comprises the following steps:
acquiring the weight of dirt in the treatment device and the liquid level of the cavity;
judging whether to open the third port to discharge sediment or judging whether to open the fourth port to discharge supernatant;
periodically detecting the opening times of the third port and the fourth port, and acquiring the opening frequencies of the third port and the fourth port;
judging whether the opening frequency of the third port is larger than a first threshold value, if so, sending out an early warning signal;
judging whether the opening frequency of the fourth port is larger than a second threshold value, if so, sending out an early warning signal;
judging whether the opening frequency of the third port is smaller than a third threshold value, and if so, sending out an early warning signal.
Judging whether the opening frequency of the fourth port is smaller than a fourth threshold value, and if so, sending out an early warning signal.
In some embodiments, the determining whether to open the third port to drain sediment or whether to open the fourth port to drain supernatant comprises:
monitoring that the liquid level in the processing device reaches a set fifth threshold value, and sending out a dirt cleaning and draining signal;
judging whether the weight of dirt in the treatment device reaches a sixth threshold;
if not, the fourth port is opened to clear supernatant;
if yes, the fourth port is opened to clear supernatant, and then the third port is opened to clear sediment.
In some embodiments, the sixth threshold is (1.6-3) ρV 1 +ρV 2 Wherein ρ is the density of the supernatant, V 1 Filling the inner cavity of the second shell with the volume of dirt, V 2 A volume of dirt above the second housing when a fifth threshold is set for the liquid level in the treatment device.
Drawings
Fig. 1 is a schematic view of a processing apparatus according to an embodiment of the present application.
Fig. 2 is an enlarged schematic view of the portion a in fig. 1.
Fig. 3 is a process flow diagram of a gas extraction monitoring method according to an embodiment of the application.
Fig. 4 is a process flow diagram of a gas extraction monitoring method according to another embodiment of the application.
Reference numerals:
a first housing 11, a second housing 12;
a first port 21, a second port 22, a third port 23, a fourth port 24;
a first control valve 31, a second control valve 32, a third control valve 33, a fourth control valve 34, a first detection part 35, a second detection part 36;
a cleaning unit 4, a shaft 41, a cleaning member 42, a driving unit 43, and a hood 44;
a helical blade 45;
the connecting assembly 6, the first flange 61, the second flange 62, the sealing part 63, the connecting piece 64, the inner sleeve 65 and the outer sleeve 66;
a negative pressure extraction pipeline 7;
and a gas extraction pipeline 8.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application.
Referring to fig. 1, the processing apparatus according to the embodiment of the present application includes a main body, where a first port 21, a second port 22, and a third port 23 are provided, the main body has a cavity, the first port 21, the second port 22, and the third port 23 are all connected with the cavity, the first port 21 is provided at an upper portion of the main body and connected with a gas extraction pipe 8, and a first control valve 31 is provided at the first port 21 to control connection or disconnection of the gas extraction pipe 8 and the cavity, and gas, water, mud, slag, etc. extracted from the gas extraction pipe 8 enter the cavity through the first port 21.
The second port 22 is arranged at the upper part of the main body, a second control valve 32 is arranged at the second port 22, the second port 22 is connected with the negative pressure extraction pipeline 7 and the air pipeline through the second control valve 32, the second control valve 32 has a first state and a second state, the cavity is communicated with the negative pressure extraction pipeline 7 in the first state, and the cavity is communicated with the air pipeline in the second state.
A third port 23 is arranged at the lower part of the main body, a third control valve 33 is arranged at the third port 23 to control the opening or closing of the third port 23, and the third port 23 is used for discharging dirt in the cavity
The cleaning assembly 4 is arranged in the cavity, the cleaning assembly 4 is used for cleaning the inner wall surface of the cavity, the cleaning assembly 4 is used for cleaning the side wall of the cavity, and mud residues in dirt are prevented from adhering to the side wall of the cavity.
When the gas is pumped out, the first control valve 31 is turned on, the third control valve 33 is turned off, and the second control valve 32 is in the first state, so that after the gas and the dirt enter the cavity, the dirt is left in the cavity, and the gas flows out through the negative pressure pumping pipeline 7.
When water is discharged, the first control valve 31 is closed, the third control valve is opened, the second control valve 32 is in the second state, the cavity is communicated with the atmosphere, negative pressure is prevented from forming in the cavity, the cleaning component 4 acts, and dirt is discharged from the third port 23 when the cleaning component 4 acts.
According to the embodiment of the application, separation of gas and dirt in the gas extraction pipeline 8 can be realized, the dirt can be effectively discharged through stirring of the cleaning assembly 4, the cleaning effect of the dirt is improved, the adhesion and solidification of mud residues in the dirt on the inner wall of the cavity are avoided, the cavity can be communicated with the atmosphere during the dirt discharge through switching of the second control valve 32, the unsmooth dirt discharge caused by a negative pressure environment in the cavity is avoided, the dirt discharge efficiency is improved, the dirt in the cavity can be cleaned within a set time, the maintenance frequency of the treatment device is reduced, and the normal and orderly operation of equipment is ensured.
Further, the first port penetrates deep into the cavity by 30-60 mm, mud slag entering the cavity through the first port is prevented from flowing along the wall surface of the cavity, and mud slag adhered to the wall surface of the cavity is reduced.
As shown in fig. 1, in some embodiments, the main body includes a first housing 11, an inner cavity of the first housing 11 is cylindrical, the cleaning assembly 4 includes a shaft 41, a cleaning member 42 and a driving part 43, the shaft 41 is pivotally connected to the main body, a part of the shaft 41 is disposed in the cavity, the cleaning member 42 is disposed on the shaft 41, the cleaning member 42 abuts against an inner wall surface of the cavity, and the driving part 43 is connected to the shaft 41 to rotate the shaft 41 and the cleaning member 42.
That is, through arranging the shaft body 41 in the cavity, drive the pivot through drive portion 43 and rotate, and then make the epaxial cleaning member 42 rotate, in order to clean the inner wall of first casing 11, drive portion 43 can be explosion-proof motor, the shaft body 41 passes through the bearing and connects on first casing 11, the top of first casing 11 sets up the detachable lid, shaft body 41 passes through the bearing and connects on the lid, still can set up the sealing washer between lid and the first casing 11 in order to avoid gas to flow from between lid and the first casing 11, explosion-proof motor also can set up on the lid, in order to avoid explosion-proof motor to receive the interference of external environment, can set up protection casing 44 in the explosion-proof motor outside.
Further, the cleaning member 42 may be a cleaning brush, where the cleaning brushes are clustered, and at least one row of cleaning brushes is arranged along the axial direction of the shaft 41, so as to ensure that the cleaning brush can clean the wall surface of the cavity when rotating for one circle.
Alternatively, the cleaning member 42 may be a rubber blade, which is connected to the shaft 41 via a link, and which is attached to the wall surface of the cavity to clean the cavity.
As shown in fig. 1, in some embodiments, the main body further includes a second housing 12, an inner cavity of the second housing 12 is tapered, the second housing 12 is disposed at a lower portion of the first housing 11, the third port 23 is disposed at a lower end of the second housing 12, a slag collecting assembly is disposed in the inner cavity of the second housing 12, the slag collecting assembly includes a spiral blade 45, the spiral blade 45 is a variable diameter spiral blade 45, the spiral blade 45 is disposed at a lower end of the shaft 41, the spiral blade 45 is disposed coaxially with the shaft 41, and an outer wall of the spiral blade 45 is attached to an inner wall of the second housing 12.
Because the filth includes water, mud and slay etc. when mud and slay deposit to the bottom of cavity and concretion, can be difficult to the clearance, if adopt the brush cleaner to clear up, can lead to explosion-proof motor's moment of torsion too big, the brush cleaner wearing and tearing are comparatively serious, and is higher to processing apparatus's maintenance frequency.
Specifically, in the embodiment of the present application, by providing the second housing 12 and providing the spiral blade 45 in the second housing 12, the spiral blade 45 not only can convey the dirt downward, but also can clean the inner wall of the second housing 12, prevent the sediment and the dirt in the second housing 12 from suspending upward again, and mix into the supernatant in the first housing 11.
Optionally, the spiral blade 45 is a shaftless spiral blade, which can reduce the extrusion force of the sludge heavy to the dirt, avoid the dirt in the second housing 12 to be too viscous, simultaneously make the sludge close to the bottom of the cavity, stir the sludge, and prevent the dirt in the second housing 12 from being solidified on the side wall surface.
As shown in fig. 1 and 2, in some embodiments, a connection assembly 6 is disposed between the first housing 11 and the second housing 12, the connection assembly 6 includes a first flange 61, a second flange 62, a sealing member 63, and a connection member 64, the first flange 61 is disposed on an outer wall of the first housing 11, the lower end of the first housing 11 has an inner sleeve 65, the second flange 62 is disposed on the second housing 12, the upper end of the second housing 12 has an outer sleeve 66, the outer sleeve 66 and the inner sleeve 65 are in mating engagement, the sealing member 63 is disposed between the inner sleeve 65 and the outer sleeve 66, and the connection member 64 is disposed between the first flange 61 and the second flange 62.
It should be noted that, in order to facilitate detection of the weight of the dirt in the cavity, or maintenance and repair of the interior of the housing, in the embodiment of the present application, the first housing 11 and the second housing 12 are configured as a split structure, the first housing 11 and the second housing 12 are connected through the connection assembly 6, specifically, the first housing 11 and the second housing 12 are limited to move in the vertical direction by the first flange 61 and the second flange 62, the first housing 11 and the second housing 12 are sealed by the inner sleeve 65, the outer sleeve 66 and the sealing member 63, the sealing member 63 may be a sealing ring, and the sealing ring may be provided with a plurality of sealing rings, for example, 2 sealing rings or 3 sealing rings, and the first housing 11 and the second housing 12 may be detached, so that the later repair efficiency is greatly improved, and the sensor is also convenient to be arranged to detect the weight of the dirt in the cavity.
As shown in fig. 1, in some embodiments, the processing apparatus further includes a first detecting member 35, where the first detecting member 35 is provided on the main body to detect the weight of the dirt in the main body, specifically, the first detecting member 35 is a pressure detecting sensor, and the pressure detecting sensor is disposed between the upper end of the connecting member 64 and the first flange 61, and when the dirt in the cavity increases, the weight of the upper end of the connecting member 64 acting on the first flange 61 increases, so as to obtain the weight of the dirt in the cavity.
Alternatively, the first detecting member 35 may be provided as a tension sensor provided in the link 64, and the weight of the dirt in the chamber may be obtained by detecting the tension applied to the link 64.
Alternatively, the connector 64 is a connecting screw, bolt, or snap.
As shown in fig. 1, in some embodiments, the processing apparatus further includes a fourth port 24, a fourth control valve 34 is provided at the fourth port 24, and the fourth port 24 is provided on a sidewall of the lower portion of the first housing 11 for discharging the supernatant in the chamber.
In order to enable separate discharge of the precipitate and the supernatant, for component analysis of the dirt in the gas extraction pipe 8, so as to determine the internal condition of the gas extraction pipe 8, in the embodiment of the present application, the fourth port 24 is provided on the sidewall of the lower portion of the first housing 11, and the fourth port 24 may be used for cleaning the supernatant above the second housing 12, and since the spiral blade 45 agitates the dirt in the second housing 12 during each cleaning, the dirt is not solidified in the second housing 12.
Further, the processing device further includes a second detecting component 36, where the second detecting component 36 is disposed on the main body to detect the liquid level in the cavity, and specifically, the second detecting component 36 is a liquid level detecting sensor, which may be a photoelectric sensor, an ultrasonic sensor, a float sensor, or the like.
As shown in fig. 1, in some embodiments, the first control valve 31, the second control valve 32, and the fourth control valve 34 are all solenoid valves, and the third control valve 33 is a solenoid rotary valve.
In order to realize automatic control, the controller can control the processing device, the corresponding first control valve 31, the second control valve 32, the third control valve 33 and the fourth control valve 34 are all electromagnetic valves, the first control valve 31 and the fourth control valve 34 are two-way electromagnetic valves, the second control valve 32 is a three-way electromagnetic valve, the third control valve 33 is an electromagnetic rotary valve, the electromagnetic rotary valve can control the rotation number of turns of the electromagnetic rotary valve so as to control blanking quantity, and the emptying of the processing device can be avoided. Because the treatment device is emptied, mud in the dirt is more easily solidified on the inner wall of the cavity and is difficult to clean, and when the treatment device is not emptied, the dirt is solid-liquid mixture due to the existence of water, so that the solidification of the mud is prevented.
As shown in fig. 1, the gas extraction system according to the embodiment of the application includes a negative pressure extraction pipeline 7, a plurality of gas extraction pipelines 8 and a control system, wherein the negative pressure extraction pipeline 7 is connected with a negative pressure extraction device so as to form a negative pressure in the negative pressure extraction pipeline 7, the gas extraction pipelines 8 are arranged in a ground layer, a treatment device is arranged between each gas extraction pipeline 8 and the negative pressure extraction pipeline 7, the treatment device is the treatment device in any embodiment, the treatment device is used for separating out the gas in the gas extraction pipeline 8, and the gas flows out of the treatment device through the negative pressure extraction pipeline 7, and the control system is used for controlling the action of the treatment device so as to clear and exhaust dirt by the treatment device.
The control system comprises a microprocessor, a communication module, an upper computer, a display screen and the like, a control valve of the processing device and a driving part 43 of the cleaning assembly 4 are powered by a mining power supply, an overcurrent protection circuit is designed, the microprocessor of the control system adopts an ARM chip, the communication adopts RS485 and infrared communication, a corresponding remote controller is provided for facilitating on-site operation, and when the cleaning assembly 4 is controlled, a power switch is controlled through the driving circuit, so that a motor of the cleaning brush is driven to work, and automatic dirt cleaning treatment is carried out.
When the sewage disposal device is used for performing the sewage disposal action, the liquid level in the waterproof device is monitored in real time, and the action threshold values of water discharge and water storage are set to meet the water discharge requirements of different areas.
The control system of the application combines local control and remote control: a display screen is arranged above the processing device body, for example, an 8-inch LCD touch display screen is adopted, and a water quality monitoring sensor can be arranged in the processing device, so that data information such as water level, water quality, decontamination time and frequency can be monitored on the display screen, a decontamination action button is arranged, an audible and visual alarm is arranged beside the screen, and when the third port 23 or the fourth port 24 is blocked by sludge, the alarm flashes in a red light and reminds a sound when the cleaning assembly 4 works normally.
The processing device uniformly uploads the real-time situation and the historical report to an upper computer of the control system through optical fiber communication, so that the on-well real-time monitoring is facilitated.
The processing devices are communicated, and the upper computer performs fault analysis: the processing devices are communicated through a modbus485 protocol, and the upper computer judges which section of extraction pipeline is suspected to leak and how the extraction effect between the pipe sections is through summarizing the dirt cleaning frequency of the analysis processing devices.
As shown in fig. 3, the gas extraction monitoring method according to the embodiment of the present application, which monitors the gas extraction pipeline 8 based on the gas extraction system according to the above embodiment, includes:
s101, acquiring the dirt weight in the treatment device and the liquid level of the cavity. Specifically, the weight of the dirt in the cavity may be detected by the first detecting part 35 in the above embodiment, and the liquid level in the cavity may be detected by the second detecting part 36 to obtain corresponding data information, respectively.
S102 determines whether to open the third port 23 to discharge the sediment, or whether to open the fourth port 24 to discharge the supernatant.
That is, by judging the data information of the weight of the dirt in the cavity and the data information of the liquid level in the cavity, whether the sediment in the cavity reaches a certain amount or not is determined, and whether centralized cleaning and draining are needed or not is determined. When the liquid level of the cavity reaches the set threshold value and the amount of sediment in the cavity does not reach the set threshold value, only the fourth port 24 is opened to discharge the supernatant, and when the liquid level of the cavity reaches the set threshold value and the amount of sediment in the cavity also reaches the set threshold value, both the supernatant and the sediment are discharged.
Wherein the supernatant liquid mainly comprises water and impurities suspended in the water, and the sediment mainly comprises soil and slag which are settled at the bottom of the cavity.
S103 periodically detects the number of times of opening the third port 23 and the fourth port 24, and obtains the opening frequencies of the third port 23 and the fourth port 24.
The opening frequency can be obtained by periodically detecting the opening times of the third port 23 and the fourth port 24, and then the discharge amount of the supernatant fluid and the discharge amount of the sediment in the corresponding time period are obtained, and whether the current gas extraction pipeline 8 is monitored and works normally or not is judged based on the detected discharge amount of the supernatant fluid and the discharge amount of the sediment.
S104, judging whether the opening frequency of the third port 23 is larger than a first threshold value, if so, sending out an early warning signal, that is, when the opening frequency of the third port 23 is larger than the first threshold value, indicating that the sludge in the gas extraction pipeline 8 is too much, and detecting whether the gas extraction pipeline 8 collapses or not.
S105 judges whether the opening frequency of the fourth port 24 is greater than a second threshold, if so, an early warning signal is sent out, that is, when the opening frequency of the fourth port 24 is greater than the second threshold, the condition that excessive water is discharged from the gas extraction pipeline 8 is indicated, whether water flushing occurs or not needs to be detected, and comprehensive judgment of the regional structure of the stratum can be carried out by matching with detection structures in a plurality of gas extraction pipelines 8 in corresponding areas.
S106, judging whether the opening frequency of the third port 23 is smaller than a third threshold value, if so, sending out an early warning signal, that is, if the opening frequency of the third port 23 is smaller than the third threshold value, indicating that no sludge is discharged or less sludge is discharged in the current gas extraction pipeline 8, and detecting whether the gas extraction pipeline 8 is blocked or not.
S107, judging whether the opening frequency of the fourth port 24 is smaller than the fourth threshold, if so, sending out an early warning signal, that is, if the opening frequency of the fourth port 24 is smaller than the fourth threshold, indicating that the current gas extraction pipeline 8 has less drainage, and detecting whether the gas extraction pipeline 8 is blocked or not.
The first threshold, the second threshold, the third threshold and the fourth threshold are all required to be adjusted and determined according to different geological conditions, for example, parameters are set according to collected data in the early gas extraction period, in the later maintenance process, the first threshold, the second threshold, the third threshold and the fourth threshold are required to be optimized to a certain extent according to the collected data of each gas extraction pipeline 8, so that the collected data of the processing device are ensured to be more matched with the actual operation condition of the current gas extraction pipeline, when the sudden change occurs, early warning signals are timely acquired, so that the gas extraction pipeline 8 is conveniently detected, the effective operation of the whole gas extraction system is ensured, the monitoring capability of the gas extraction system is improved, the fault pre-judging capability and the processing efficiency are improved, and the geological disaster can be predicted and pre-warned.
On the basis of monitoring each gas extraction pipeline 8, the data information is further integrated to acquire the geological condition in the whole area.
The embodiment of the application also facilitates the collection of the sediment by respectively discharging the sediment and the supernatant fluid so as to facilitate the observation of the components in the sediment, thereby more accurately judging and adjusting the acquired data information.
As shown in fig. 4, in some embodiments, determining whether to open the third port 23 to drain the sediment, or determining whether to open the fourth port 24 to drain the supernatant, includes:
s201, monitoring that the liquid level in the processing device reaches a set fifth threshold value, and sending out a dirt cleaning and draining signal.
That is, the dirt cleaning and draining signal takes the liquid level in the cavity as a triggering condition, so that excessive dirt in the cavity is avoided, and dirt in the processing device is cleaned and drained in time.
S202 determines whether the dirt weight in the processing apparatus reaches a sixth threshold.
When it is desired to clear the treatment device of dirt, a clear solution is determined, whether clear is to be performed through the fourth port 24 or through the combination of the fourth port 24 and the third port 23. According to the embodiment of the application, the weight of the dirt in the treatment device is detected, when the liquid level of the dirt in the cavity reaches the fifth threshold value, the weight of the dirt is judged to obtain the estimated amount of the sediment, so that the clearing and draining scheme is reasonably determined, more reliable detection data can be conveniently obtained, and the data can be conveniently analyzed to send out early warning information.
If not, S203, the fourth port 24 is opened to purge the supernatant, and when the dirt weight does not reach the sixth threshold, it indicates that the amount of sediment in the chamber is small, and purging through the third port 23 is not required.
If S204, the fourth port 24 is opened to purge the supernatant, and the third port 23 is opened to purge the sediment. When the soil weight reaches a sixth threshold, it is indicated that a certain amount of sediment has accumulated in the cavity and cleaning is required.
In some embodiments, the sixth threshold is (1.6-3) ρV 1 +ρV 2 Wherein ρ is the density of the supernatant, V 1 Filling the interior of the second housing 12 with a volume of dirt, V 2 The volume of dirt above the second housing 12 when the fifth threshold is set for the liquid level in the treatment device.
Because the density of the sludge contained in the sediment is not constant, the processing device provided by the embodiment of the application can intensively discharge and collect the sediment, and the setting parameter value of the sixth threshold value is obtained for the sediment according to the sediment detection data collected in the earlier stage, so that the critical point of the sediment for cleaning is controlled more accurately, and the cleaning effect of the processing device and the monitoring accuracy of the whole gas extraction system are ensured.
For example, the composition of the precipitate is analyzed based on the collected precipitate removed by the treatment device, and when the concentration of the clay in the precipitate is relatively large, the sixth threshold value may be set to (1.6ρV 1 +ρV 2 )、(1.8ρV 1 +ρV 2 ) Or (2.1 ρV) 1 +ρV 2 ) When the slag content in the precipitate is relatively high, the sixth threshold may be adjusted to (2.4 ρV 1 +ρV 2 )、(2.8ρV 1 +ρV 2 ) Or (3ρV) 1 +ρV 2 ) When ρ is valued, ρ may be the density of water directly employed.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the application.
Claims (10)
1. A processing apparatus, comprising:
a body having a cavity;
the first port is arranged at the upper part of the main body and is connected with the gas extraction pipeline, and a first control valve is arranged at the first port to control the connection or disconnection of the gas extraction pipeline and the cavity;
the second port is arranged at the upper part of the main body, a second control valve is arranged at the second port, the second port is connected with a negative pressure extraction pipeline and an air pipeline through the second control valve, the second control valve has a first state and a second state, the cavity is communicated with the negative pressure extraction pipeline in the first state, and the cavity is communicated with the air pipeline in the second state;
the cleaning assembly is arranged in the cavity and is used for cleaning the inner wall surface of the cavity;
the third port is arranged at the lower part of the main body, a third control valve is arranged at the third port to control the third port to be opened or closed, and the third port is used for discharging dirt in the cavity.
2. The treatment device of claim 1, wherein the body comprises a first housing, an interior cavity of the first housing being cylindrical, the cleaning assembly comprising:
the shaft body is pivoted on the main body, and a part of the shaft body is arranged in the cavity;
a cleaning member provided on the shaft body, the cleaning member being in contact with an inner wall surface of the cavity;
and the driving part is connected with the shaft body to drive the shaft body and the cleaning component to rotate.
3. The processing apparatus of claim 2, wherein the main body further comprises a second housing, an inner cavity of the second housing is tapered, the second housing is disposed at a lower portion of the first housing, the third port is disposed at a lower end of the second housing, a slag collecting assembly is disposed in the inner cavity of the second housing, and the slag collecting assembly comprises:
the spiral blade is a variable-diameter spiral blade, the spiral blade is arranged at the lower end of the shaft body, the spiral blade and the shaft body are coaxially arranged, and the outer wall of the spiral blade is attached to the inner wall of the second shell.
4. A treatment device according to claim 3, wherein a connection assembly is provided between the first housing and the second housing, the connection assembly comprising:
the first flange is arranged on the outer wall of the first shell, and the lower end of the first shell is provided with an inner sleeve;
the second flange is arranged on the second shell, the upper end of the second shell is provided with outer sleeves, and the outer sleeves are matched and sleeved with the inner sleeves;
a sealing member disposed between the inner sleeve and the outer sleeve;
and the connecting piece is arranged between the first flange and the second flange.
5. The processing apparatus of claim 4, further comprising a fourth port provided with a fourth control valve, the fourth port being provided on a side wall of the lower portion of the first housing for discharging the supernatant in the chamber.
6. The processing apparatus according to claim 5, wherein,
the device also comprises a first detection component, a second detection component and a first detection component, wherein the first detection component is arranged on the main body so as to detect the weight of dirt in the main body; and/or
The second detection component is arranged on the main body to detect the liquid level in the cavity; and/or
The first control valve, the second control valve and the fourth control valve are all electromagnetic valves, and the third control valve is an electromagnetic rotary valve; and/or
The helical blade is a shaftless helical blade.
7. A gas extraction system, comprising:
the negative pressure extraction pipeline is connected with the negative pressure extraction equipment so as to form negative pressure in the negative pressure extraction pipeline;
a plurality of gas extraction pipelines, wherein the gas extraction pipelines are arranged in a ground, a treatment device is arranged between each gas extraction pipeline and the negative pressure extraction pipeline, the treatment device is a treatment device according to any one of claims 1-6, and the treatment device is used for separating out gas in the gas extraction pipelines and enabling the gas to flow out of the treatment device through the negative pressure extraction pipelines;
and the control system is used for controlling the action of the processing device to enable the processing device to clear and remove dirt.
8. A gas extraction monitoring method, characterized in that the monitoring of a gas extraction pipeline is performed based on the gas extraction system of claim 7, the gas extraction monitoring method comprising:
acquiring the weight of dirt in the treatment device and the liquid level of the cavity;
judging whether to open the third port to discharge sediment or judging whether to open the fourth port to discharge supernatant;
periodically detecting the opening times of the third port and the fourth port, and acquiring the opening frequencies of the third port and the fourth port;
judging whether the opening frequency of the third port is larger than a first threshold value, if so, sending out an early warning signal;
judging whether the opening frequency of the fourth port is larger than a second threshold value, if so, sending out an early warning signal;
judging whether the opening frequency of the third port is smaller than a third threshold value, and if so, sending out an early warning signal.
Judging whether the opening frequency of the fourth port is smaller than a fourth threshold value, and if so, sending out an early warning signal.
9. The gas extraction monitoring method according to claim 8, wherein the determining whether to open the third port to discharge sediment or whether to open the fourth port to discharge supernatant, comprises:
monitoring that the liquid level in the processing device reaches a set fifth threshold value, and sending out a dirt cleaning and draining signal;
judging whether the weight of dirt in the treatment device reaches a sixth threshold;
if not, the fourth port is opened to clear supernatant;
if yes, the fourth port is opened to clear supernatant, and then the third port is opened to clear sediment.
10. The gas extraction monitoring method according to claim 9, characterized in thatThe sixth threshold is (1.6-3) ρV 1 +ρV 2 Wherein ρ is the density of the supernatant, V 1 Filling the inner cavity of the second shell with the volume of dirt, V 2 A volume of dirt above the second housing when a fifth threshold is set for the liquid level in the treatment device.
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